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1、高青县高青县2015 高考英语阅读理解（一轮）训练（高考英语阅读理解（一轮）训练（2）及答案（山东省）及答案（山东省）阅读下面短文，掌握其大意，从每题所给的 A、B、C、D 四个选项中，选出最佳选项。Howling is a behavior commonly observed among a wolf nark. An animals, wolves work together to hunt and rely on howling was an important means of communication each other. There are different explants
2、 of a wolfs howl and it appears that there may be more to discover.One theory is that wolves howl to bend better together. Its almost as if howling together helps the pack stay together. Perhaps something similar to people feeling a sense of involvement with each other when singing a song together .
3、 But this theory may be wrong, explains Fred H. Harington, a professor who studies wolf behavior.Indeed, there have been tines when wolves have been seen one moment howling in a exhorts, and the next, quarreling anions each other. It appears that usually the lowest-tanking menthes of the pack may ac
4、tually be “punished” for Joining in the churs at times. So is howling a way to strcagthen a social boad or just a way to reconfirm status among its members? Why do welves howl for sure?What is cleat, however, is that howling is often used among packmates to locate each other. Hunting grounds are dis
5、tant and it happens that woloves may separate from one another at times. When this happens, howling appcars to be an ercellent means of gathering.Howling, interestingly, is a contagious behaviour. When one wolf starts to howl, very likely others will follow. This is often seen to occat in the mornin
6、g, as if wolves were doing some sotr of “roll rall”where wolves all howl togeter to howl, very likely others will follow. This is often seen to occar in the morning, as if wolves were doing w some sotr of “roll call”where wolves all howl together to repotr their pteence.55.What the por similarity be
7、tween wolves how humaes ting in chorus?A.The act of calling each other.B.the sense of accomplishment.C.The act of hunting for something.D.The sense of belonging to a group.56.Why does Harrington think the“secial boad”theory may be wrong?A.Wolves separate from each other after howling.B.Wolves tend t
8、o protect their hunting grounds.C.Wolves sometimes have quarrels after howling together.D.Wolves of low rank are encouraged to join in the chorus.57.Reseatchers are sure that wolves often howl to_.A.show their ranks B.C.repotr the missing onesD.express their lonelingess58.“Howling is a contagious be
9、haviour”(in the last paragraph)means_.A.howling is a signal for huntingB.howling is a way of communicationC.howling aften occurs in the morningD.howling spreads from one to another 【参考答案】DCBDA recent study of ancient and modern elephants has come up with the unexpected conclusion that the African el
10、ephant 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 relationship between the ancient woolly mammoth and mastodon to modern elephantsthe Asian elephant, African forest elephant, and African savann
11、a elephant.Once they obtained DNA sequences (序列)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
12、used detailed genetic analysis to prove that the African savanna elephant and the African forest elephant have been distinct species for several million years. The divergence of the two species took place around the time of the divergence of Asian elephants and woolly mammoths. This result amazed al
13、l the scientists.There has long been debate in the scientific community that the two might be separate species, but 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 el
14、ephants were two populations of the same species, despite the elephants significant size differences. The savanna elephant has an average shoulder height of 3.5 metres while the forest elephant has an average shoulder height of 2.5 metres. The savanna elephant weighs between six and seven tons, roug
15、hly 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 Illinois, said, “We
16、 now have to treat the forest and savanna elephants as two different units for conservation purposes. Since 1950, all African elephants have been conserved as one species. Now that we know the forest and savanna elephants are two very distinctive animals, the forest elephant should become a bigger priority (优先) for conservation purposes.”本文讲述了一项新的科学发现：通过对非洲森林大象和非洲草原大象 DNA 的鉴定，科学家们得出结论：它们是两种不同的物种。我们要保护这些珍稀动物。12One of the fossils studied by the researchers is that of _A
