1、成都市2015高考阅读类课外训练【6】及答案【三月】阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。According to the US government, wind farms off the Pacific coast could produce 900 gigawatts of electricity every year. Unfortunately, the water there is far too deep for even the tallest windmills (see picture) to touch bottom. An exper
2、iment under way off the coast of Norway, however, could help put them anywhere. The project, called Hywind, is the worlds first large-scale deepwater wind turbine (涡轮发电机). Although it uses a fairly standard 152-ton, 2. 3-megawatt turbine, Hywind represents totally new technology. The turbine will be
3、 fixed 213 feet above the water on a floating spar(see picture), a technology Hywinds creator, the Norwegian company StatoilHydro, has developed recently. The steel spar, which is filled with stones and goes 328 feet below the sea surface, will be tied to the ocean floor by three cables (缆索); these
4、will keep the spar stable and prevent the turbine from moving up and down in the waves. Hywinds stability (稳定性) in the cold and rough sea would prove that even the deepest corners of the ocean are suitable for wind power. If all goes according to plan, the turbine will start producing electricity si
5、x miles off the coast of southwestern Norway as early as September. To produce electricity on a large scale, a commercial wind farm will have to use bigger turbines than Hywind does, but its difficult enough to balance such a large turbine so high on a floating spar in the middle of the ocean. To ma
6、ke that turbine heavier, the whole spars centre of gravity must be moved much closer to the oceans surface. To do that, the company plans to design a new kind of wind turbine, one whose gearbox (变速箱) sits at sea level rather than behind the blades (see picture). Hywind is a test run, but the benefit
7、s for perfecting floating wind-farm technology could be extremely large. Out at sea, the wind is often stronger and steadier than close to shore, where all existing offshore windmills are planted. Deep-sea farms are invisible from land, which helps overcome the windmill-as-eyesore objection. If the
8、technology catches on, it will open up vast areas of the planets surface to one of the best low-carbon power sources available. 1. The Hywind project uses totally new technology to ensure the stability of.A. the cables which tie the spar to the ocean floorB. the spar which is floating in deep-sea wa
9、terC. the blades driven by strong and steady sea windD. the stones filled in the spar below the sea surface2. To balance a bigger turbine high on a floating spar, a new type of turbine is to be designed with its gearbox sitting.A. on the sea floorB. on the spar topC. at sea level D. behind the blade
10、s3. Wide applications of deepwater wind power technology can.A. solve the technical problems of deepwater windmillsB. make financial profits by producing more turbinesC. settle the arguments about environmental problemsD. explore low-carbon power resources available at sea【参考答案】1-3 BCD阅读下列四篇短文，从每小题后
11、所给的A,B,C或D四个选项中，选出最佳选项。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 relations
12、hip between the ancient woolly mammoth and mastodon to modern elephantsthe Asian elephant, African forest elephant, and African savanna 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
13、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 elephant and the African forest elephant have been distinct species for several million years. The
14、 divergence of the two species took place around the time of the divergence of Asian elephants and woolly mammoths. This result amazed all 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 evidenc
15、e 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. 5
16、 metres while the forest elephant has an average shoulder height of 2. 5 metres. 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
17、lay in the analysis of the DNA. Alfred Roca, assistant professor in the Department of Animal Sciences at the University of Illinois, said, “We 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
18、 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.”1. One of the fossils studied by the researchers is that of.A. the Asian elephantB. the forest elephantC. the savanna
19、elephantD. the mastodon elephant2. The underlined word “divergence” in Paragraph 4 means “.AA. evolutionB. exhibitionC. separationD. examination3. The researchers conclusion was based on a study of the African elephants.A. DNAB. heightC. weightD. population4. What are Alfred Rocas words mainly about
20、? A. The conservation of African elephants.B. The purpose of studying African elephants.C. The way to divide African elephants into two units.D. The reason for the distinction of African elephants.5. Which of the following can be the best title for the passage? A. Naturalists Beliefs about Elephants
21、B. Amazing Experiments about ElephantsC. An Unexpected Finding about ElephantsD. A Long Scientific Debate about Elephants参考答案1-5 DCAAC完形填空。阅读下面短文，掌握其大意，然后从各题所给的四个选项A、B、C和D中，选出最佳答案。“I wish Id known this before” is a statement often said by us when we realize weve made bad decisions.1._ you dont want
22、to have regrets，you must realize some factors that cause poor decisions. For example，lack of foresight is 2._ of such factors. Many times，we tend to concentrate only on the “right now” of a certain decision 3._ fail to understand its effects on our future. Ideally，we 4._ practise proactive thinking
23、(主动思考) to predict the changes in future.Often，we get confused and leave some important decisions of our life in the hands of others，5._ can be harmful. Instead，we must avoid asking others to decide for us at all costs.Making incorrect assumptions also can cause bad decisions. We often base our views
24、 6._ the history of our experiences. However，as people and things keep changing，its best to judge them 7._ they are. For example，you decide not to interact much with your colleague because you thought she was unable. However，she was 8._ only one who helped you in completing your task. (八)1. If考查状语从句的引导词。如果你不想留有遗憾，你必须知道那些导致错误决定的因素。2. one考查代词。缺乏远见是其中一个因素。3. and考查并列连词。该空连接两个谓语，且表示并列关系，故填and。4. should考查情态动词。我们应该练习主动思考，预测未来的变化。5. which考查定语从句的引导词。该空引导非限制性定语从句指代前面整句内容，且在从句中作主语，故填which。6. on考查介词。baseon将建立在的基础上。7. as考查状语从句的引导词。该空引导方式状语从句，as they are意为“照他们现在的样子”。8. the考查冠词。the only one 唯一的人。