学年新教材高中英语单元素养培优五UnitIntothewild练习含解析外研版必修第一册.doc
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1、单元素养培优(五) Unit 5. 单句语法填空1. The house destroyed (destroy) in the fire cant be repaired. 2. Im determined(determine)to succeed. 3. Its amazing(amaze) how quickly people adapt. 4. The level of pollution in the river is measured (measure) every day. 5. His only chance of survival(survive) was a heart tr
2、ansplant. 6. They have to come up with a solution (solve) to the problem. 7. Hers was the first company founded (found) by a woman to reach the Fortune 500. 8. We can buy many kinds of ice-creams in the frozen (freeze) food section in supermarkets. 9. Theres been a drop in ticket sales in reaction (
3、react) to the review. 10. We are bound to see some ups and downs along the road to recovery (recover). . 选词填空lose track of, turn up, cut down, lead to, from time to time, concentrate on, recover from, up to, fall off, after all1. You should forgive him for his forgetfulness; after all, he is over se
4、venty. 2. Young children cant concentrate on one activity for a very long time. 3. He promised to come, but so far he has not turned up. 4. You wont fall off the stepladder; Ill hold it for you. 5. In the past ten years, a lot of trees have been cut down in the mountain. 6. Smoking too much will lea
5、d to lung cancer. 7. I cant agree more. We need to get away from work from time to time. 8. She returned to her hometown to recover from an illness. 9. We could go now or laterits up to you. 10. Toms work was so interesting that he lost track of the time. . 完成句子1. I see what you mean, but if you can
6、 manage to do it(如果你设法做成它), everything will change. 2. The government will allow them to advertise on radio and television(允许他们在播送和电视上做广告). 3. This suggestion will certainly lead to an argument(导致争论). 4. Just make sure you close the door(确信你关好门). 5. Sugar can be absorbed by the body in a variety of
7、forms(各种各样的形式). 6. I am concentrating on my job(专注于我的工作), thats my strength. 7. The high speed train can travel at a speed of over 400 kilometers per hour(以每小时四百多千米的速度). 8. His face goes white, and he just stares at his feet(盯着自己的脚). 9. So dont hurry. After all(毕竟), he cant run away. 10. Hold your h
8、orses(稍等), were not ready to leave yet! . 阅读理解A(2021无锡高一检测)How does an ecosystem work? What makes the populations of different species the way they are? Why are there so many flies and so few wolves? To find an answer, scientists have built mathematical models of food webs, noting who eats whom and
9、how much each one eats. With such models, scientists have found out some key principles operating in food webs. Most food webs, for instance, consist of many weak links rather than a few strong ones. When a predator(掠食动物)always eats huge numbers of a single prey(猎物), the two species are strongly lin
10、ked; when a predator lives on various species, they are weakly linked. Food webs may be dominated by many weak links because that arrangement is more stable over the long term. If a predator can eat several species, it can survive the extinction(灭绝) of one of them. And if a predator can move on to a
11、nother species that is easier to find when a prey species becomes rare, the switch allows the original prey to recover. The weak links may thus keep species from driving one another to extinction. Mathematical models have also revealed that food webs may be unstable, where small changes of top preda
12、tors can lead to big effects throughout entire ecosystems. In the 1960s, scientists proposed that predators at the top of a food web had a surprising amount of control over the size of populations of other speciesincluding species they did not directly attack. And unplanned human activities have pro
13、ved the idea of top-down control by top predators to be true. In the ocean, we fished for top predators such as cod on an industrial scale, while on land, we killed off large predators such as wolves. These actions have greatly affected the ecological balance. Scientists have built an early-warning
14、system based on mathematical models. Ideally, the system would tell us when to adapt human activities that are pushing an ecosystem toward a breakdown or would even allow us to pull an ecosystem back from the borderline. Prevention is key, scientists say, because once ecosystems pass their tipping p
15、oint(临界点), it is remarkably difficult for them to return. 【文章大意】本文主要讲述了科学家们已经建立了一个基于食物网的数学模型预警系统, 该系统揭示食物链中的生态平衡和破坏的原理和提醒人们应该保护生态系统。1. What have scientists discovered with the help of mathematical models of food webs? A. The living habits of species in food webs. B. The rules governing food webs of
16、the ecosystems. C. The approaches to studying the species in the ecosystems. D. The differences between weak and strong links in food webs. 【解析】选B。细节理解题。根据文章第二段With such models, scientists have found out some key principles operating in food webs. 可知, 通过这些模型, 科学家们发现了一些在食物网中起作用的关键原理。由此可见, 科学家借助于食物网的数
17、学模型发现了控制生态系统食物网的规那么。2. A strong link is found between two species when a predator _. A. has a wide food choiceB. can easily find new preyC. sticks to one prey speciesD. can quickly move to another place【解析】选C。细节理解题。根据文章第二段If a predator can eat. . . prey to recover. 可知如果一个捕食者可以吃几个物种, 它就可以在其中一个物种灭绝后幸存
18、下来。如果一个捕食者可以转移到另一个物种, 当一个捕食物种变得稀少时, 更容易找到这个物种, 那么这个转换就允许原来的捕食者恢复。由此可见, 当食肉动物粘在一个捕食物种上时, 发现两个物种之间有一个很强的联系。3. What will happen if the populations of top predators in a food web greatly decline? A. The prey species they directly attack will die out. B. The species they indirectly attack will turn into
19、top predators. C. The living environment of other species will remain unchanged. D. The populations of other species will experience unexpected changes. 【解析】选D。推理判断题。根据文章第三段第一句可知数学模型还说明, 食物网可能是不稳定的, 顶部食肉动物的微小变化可能导致整个生态系统的巨大影响。由此可见, 如果食物网中顶级食肉动物的数量大幅度下降, 其他物种的种群将经历意想不到的变化。4. What conclusion can be dr
20、awn from the examples in Paragraph 4? A. Uncontrolled human activities greatly upset ecosystems. B. Rapid economic development threatens animal habitats. C. Species of commercial value dominate other species. D. Industrial activities help keep food webs stable. 【解析】选A。推理判断题。根据文章第四段可知无方案的人类活动证明了顶级掠食者
21、自上而下控制的想法是正确的。在海洋中, 我们在工业规模上捕捞顶级掠食者, 如鳕鱼, 而在陆地上, 我们杀死大型掠食者, 如狼。这些行动大大影响了生态平衡。由此可见, 不受控制的人类活动极大地破坏了生态系统。B(2021荆州高一检测)Have you ever wondered what wild animals do when no one is watching? Low cost, dependable and small modern cameras offered a big help. Cameras placed in hard-to-reach places have shot
22、everything from small desert cats to larger snow-loving cats in the northern Rocky Mountains. Scientists have been able to document the “private moments of wildlife with leading technology. Grant Harris is a government biologist with the United States Fish and Wildlife Service in Albuquerque, New Me
23、xico. In his words, “theres no doubt that these wild cameras are important tools to learn new information on wildlife. Harris said some images help scientists see the effects of climate change. Researchers with the Wyoming Migration Initiative, or WMI, are among those using wild cameras along with g
24、lobal positioning systems, or GPS. But WMI director Matthew Kauffman says as those devices are limited, so is the amount of information they can gather from GPS. However, cameras can be left in very wild areas for days, weeks or even months. They can provide information on how many animals are movin
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