1、阅读下面短文，请从短文后所给的各题的4个选项（A.B.C.D）中选出1个最佳选项。 The Special Ability of Human Beings Every day we experience one of the wonders of the word around us without even realizing it. It is not the amazing complexity of television, nor the impressive technology of transport.The universal wonder we share and experience is our ability to make noise without mouths, and so transmit ideas and thoughts to each other's minds. This ability comes so naturally that we tend to forget what a miracle(奇迹)it is. Obviously, the ability to talk is something that marks humans off from animal. Of course, some animals have powers just as amazing. Birds can fly thousands miles by observing positions of the stars in the sky in relation to the time of day and year. In Natures talent show, humans are a species of animal that have developed their own special act. If we reduce it to basic terms, it' s an ability for communicating information to others by varying sounds we make as we breathe out. Not that we don't have other powers of communication. Our facial expressions convey our emotions, such as anger, or joy, or disappointment. The way we hold our heads can indicate to others whether we are happy or sad This is so-called “body language", Bristling(直立的)fur is an unmistakable warning of attack among many animals. Similarly, the bowed head or drooping tail shows a readiness to take second place in any animal gathering. Such a means of communication is a basic mechanism that animals, including human beings, instinctively acquire and display, Is the ability to speak just another sort of instinct? If so, how did human beings acquire this amazing skill? Biologist can readily indicate that particular area of our brain where speech mechanisms function, but this doesn't tell us how that part of our bodies originated in our biological history. 问：According to the passage, the wonder we take for granted is （ ） 单选题 2分

2、阅读下面短文，请从短文后所给的各题的4个选项（A.B.C.D）中选出1个最佳选项。 The Special Ability of Human Beings Every day we experience one of the wonders of the word around us without even realizing it. It is not the amazing complexity of television, nor the impressive technology of transport.The universal wonder we share and experience is our ability to make noise without mouths, and so transmit ideas and thoughts to each other's minds. This ability comes so naturally that we tend to forget what a miracle(奇迹)it is. Obviously, the ability to talk is something that marks humans off from animal. Of course, some animals have powers just as amazing. Birds can fly thousands miles by observing positions of the stars in the sky in relation to the time of day and year. In Natures talent show, humans are a species of animal that have developed their own special act. If we reduce it to basic terms, it' s an ability for communicating information to others by varying sounds we make as we breathe out. Not that we don't have other powers of communication. Our facial expressions convey our emotions, such as anger, or joy, or disappointment. The way we hold our heads can indicate to others whether we are happy or sad This is so-called “body language", Bristling(直立的)fur is an unmistakable warning of attack among many animals. Similarly, the bowed head or drooping tail shows a readiness to take second place in any animal gathering. Such a means of communication is a basic mechanism that animals, including human beings, instinctively acquire and display, Is the ability to speak just another sort of instinct? If so, how did human beings acquire this amazing skill? Biologist can readily indicate that particular area of our brain where speech mechanisms function, but this doesn't tell us how that part of our bodies originated in our biological history. 问：What feature of "body language "mentioned in the passage is common to both human and animals? （ ） 单选题 2分

3、阅读下面短文，请从短文后所给的各题的4个选项（A.B.C.D）中选出1个最佳选项。 The Special Ability of Human Beings Every day we experience one of the wonders of the word around us without even realizing it. It is not the amazing complexity of television, nor the impressive technology of transport.The universal wonder we share and experience is our ability to make noise without mouths, and so transmit ideas and thoughts to each other's minds. This ability comes so naturally that we tend to forget what a miracle(奇迹)it is. Obviously, the ability to talk is something that marks humans off from animal. Of course, some animals have powers just as amazing. Birds can fly thousands miles by observing positions of the stars in the sky in relation to the time of day and year. In Natures talent show, humans are a species of animal that have developed their own special act. If we reduce it to basic terms, it' s an ability for communicating information to others by varying sounds we make as we breathe out. Not that we don't have other powers of communication. Our facial expressions convey our emotions, such as anger, or joy, or disappointment. The way we hold our heads can indicate to others whether we are happy or sad This is so-called “body language", Bristling(直立的)fur is an unmistakable warning of attack among many animals. Similarly, the bowed head or drooping tail shows a readiness to take second place in any animal gathering. Such a means of communication is a basic mechanism that animals, including human beings, instinctively acquire and display, Is the ability to speak just another sort of instinct? If so, how did human beings acquire this amazing skill? Biologist can readily indicate that particular area of our brain where speech mechanisms function, but this doesn't tell us how that part of our bodies originated in our biological history. 问：What can be inferred from Paragraph 3 ?（ ） 单选题 2分

4、阅读下面短文，请从短文后所给的各题的4个选项（A.B.C.D）中选出1个最佳选项。 The Special Ability of Human Beings Every day we experience one of the wonders of the word around us without even realizing it. It is not the amazing complexity of television, nor the impressive technology of transport.The universal wonder we share and experience is our ability to make noise without mouths, and so transmit ideas and thoughts to each other's minds. This ability comes so naturally that we tend to forget what a miracle(奇迹)it is. Obviously, the ability to talk is something that marks humans off from animal. Of course, some animals have powers just as amazing. Birds can fly thousands miles by observing positions of the stars in the sky in relation to the time of day and year. In Natures talent show, humans are a species of animal that have developed their own special act. If we reduce it to basic terms, it' s an ability for communicating information to others by varying sounds we make as we breathe out. Not that we don't have other powers of communication. Our facial expressions convey our emotions, such as anger, or joy, or disappointment. The way we hold our heads can indicate to others whether we are happy or sad This is so-called “body language", Bristling(直立的)fur is an unmistakable warning of attack among many animals. Similarly, the bowed head or drooping tail shows a readiness to take second place in any animal gathering. Such a means of communication is a basic mechanism that animals, including human beings, instinctively acquire and display, Is the ability to speak just another sort of instinct? If so, how did human beings acquire this amazing skill? Biologist can readily indicate that particular area of our brain where speech mechanisms function, but this doesn't tell us how that part of our bodies originated in our biological history. 问：How do we explain that human beings have the ability to speak according to biologists?（ ） 单选题 2分

5、阅读下面短文，请从短文后所给的各题的4个选项（A.B.C.D）中选出1个最佳选项。 The Special Ability of Human Beings Every day we experience one of the wonders of the word around us without even realizing it. It is not the amazing complexity of television, nor the impressive technology of transport.The universal wonder we share and experience is our ability to make noise without mouths, and so transmit ideas and thoughts to each other's minds. This ability comes so naturally that we tend to forget what a miracle(奇迹)it is. Obviously, the ability to talk is something that marks humans off from animal. Of course, some animals have powers just as amazing. Birds can fly thousands miles by observing positions of the stars in the sky in relation to the time of day and year. In Natures talent show, humans are a species of animal that have developed their own special act. If we reduce it to basic terms, it' s an ability for communicating information to others by varying sounds we make as we breathe out. Not that we don't have other powers of communication. Our facial expressions convey our emotions, such as anger, or joy, or disappointment. The way we hold our heads can indicate to others whether we are happy or sad This is so-called “body language", Bristling(直立的)fur is an unmistakable warning of attack among many animals. Similarly, the bowed head or drooping tail shows a readiness to take second place in any animal gathering. Such a means of communication is a basic mechanism that animals, including human beings, instinctively acquire and display, Is the ability to speak just another sort of instinct? If so, how did human beings acquire this amazing skill? Biologist can readily indicate that particular area of our brain where speech mechanisms function, but this doesn't tell us how that part of our bodies originated in our biological history. 问：This passage is mainly about （ ）. 单选题 2分

6、下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。 What Will Man Be Like in the Future What will man be like in the future—in 5000 or 50000 years from now? We can only make guesses, of course, but we can be sure that he will be different from what he is today. （6） Let us take an obvious example. Man, even five hundred years ago, was shorter than he is today. （7） Five hundred years is relatively short period of time, so we may assume that man will continue to grow taller. Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 20%o of the brains capacity. As time goes on, however, we shall have to use our brains more and more, and eventually we shall need larger ones! （8） Nowadays our eyes are in constant use. In fact, we use them so much that very often they be- come weaker and we have to wear glasses. But over very long period of time it is likely that man’s eyes will grow stronger. On the other hand, we tend to make less use of our arms and legs. These, as a result, are likely to grow weaker. （9 ） But what about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future, then, both sexes are likely to be bald. Perhaps all this gives the impression that future man will not be a very attractive creature to look at! This may well be true. （10） He will still be a human being, with thoughts and emotions similar to our own. A Man need not do housework. B. This is likely to bring about a physical change to the head, in particular the forehead, will grow larger. C. At the same time, however, our fingers will grow more sensitive because they are used a great deal in modern life. D. For man is slowly changing all the time. E. All the same, in spite of all these changes future man will still have a lot in common with us. F. Now, on average, men are about three inches taller. 简答题 10分

7、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：A recent study shows that the African elephants have two different and distinct species. 单选题 2分

8、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：Researchers at York and Harvard universities examined only the genes of the ancient woolly mam- moth and mastodon. 单选题 2分

9、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：The modern elephants have three species, the Asian elephant, African forest elephant and African savanna elephant. 单选题 2分

10、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：Those scientists are surprised to find that modern forest and savanna elephants don't have the same progenitor(祖先). 单选题 2分

11、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：Asian elephants and mammoths are distinct from each other. 单选题 2分

12、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：The divergence of the African savanna elephants and the African forest elephants took place long before the time of the divergence of Asian elephants and woolly mammoths. 单选题 2分

13、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：There are convincing evidences to prove that the African savanna elephants and the African forest elephants are indeed different species. 单选题 2分

14、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：African savanna elephants and African forest elephants are different in size because their food is different. 单选题 2分

15、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：The savanna elephant weighs roughly three times the weight of the forest elephant. 单选题 2分

16、下面的短文后列出了10个句子,请根据短文内容对每个句子作出判断:如果该句提供的是正确信息,选择A;如果该句提供的是错误信息,选择B;如果该句的信息文中没有提及, 选C。 New Study on Elephants A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct（不同的） species. The discovery was made by researchers at York and Harvard universities when they were examining the genetic(基因的))relationship between the ancient woolly mammoth and mastodon to modern elephants--the Asian elephant African forest elephant and African' savanna(热带草原)elephant. Once they obtained DNA sequences from two fossils(化石), mammoths and mastodons. The team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths. The scientists used detailed genetic analysis to prove that the African savanna elephants and the African forest elephants have been distinct species for several million years. The divergence(分离)of the two species took place around the time of the divergence of Asian elephants and woolly mam- moths. This result amazed all the scientists. There has long been debate in the scientific community that the two might be separate species out this is the most convincing scientific evidence so far that they are indeed different species. Previously, many naturalists believed that African savanna elephants and African forest elephants were two populations of the same species despite the elephants’ significant size differences. The savanna elephant has an average shoulder height of 3. 5metres while the forest elephant has an average shoulder height of 2. 5metres. The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant. But the fact that they look so different does not necessarily mean they are different species. However, the proof lay in the analysis of the DNA. Alfred Roca, assistant professor in the department of Animal Sciences at the University of Minois, said, " We now have to treat the forest and savanna elephants as two different units for conservation purpose. Since 1950 all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinct animals, the forest elephant should become a bigger priority (优先)for conservation purpose. 问：We should give the priority to conserve the African savanna elephants. 单选题 2分

17、短文写作。 假如你是北京外国语大学英语系的主任,想邀请哈佛大学的 Michael Hutchison教授来校为英语专业的研究生做一次有关美国文学的讲座,请用英语给他写一封120词左右的邀请函。 简答题 30分