新教材人教版(2021新)高中英语2020-2021学年上学期高二寒假作业5.docx
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1、一一、单词拼写、单词拼写 1. Some slight (事件) may touch off a major war. 2. If we had known of your (离开), we would have seen you off at the airport. 3. The unexpected rainstorm caused the (倒塌)of the roof. 4. Climate change could have an impact on animal evolution and (生态), scientists believe. 5. She had no idea
2、how ignorant she would find herself in (比较)with her companions. 6. The survey found a wide (差异) in the prices charged for canteen food. 7. New standards should be reduced as (标准)for judging. 8. I prefer to see animal in their natural (栖息地), rather than in zoo 9. As she was ill, she had no (食欲)and on
3、ly picked at the food. 10. They (增加)and pass from generation to generation much like ordinary bacterial genes. 二、单句语法填空二、单句语法填空 11. Recycling is now recognised as an important part of the (conserve) of resources. 12. The country bought a (substaint) number of weapons. 13. China has always stood for
4、the complete prohibition and thorough destruction of (biology) weapons. 14. Scientists ponder the idea of cloning (endanger) species to increase their population. 15. I believe likely that more volunteers will help plant more trees around the park. 16. They are now under a great deal of pressure to
5、tighten their airport (secure). 17. He said he was a doctor, but it (subsequent) emerged that he was an impostor. 作业作业5 5 A delicate world 18. He nodded (greet) to Mary Ann and Michael and shook hands with Burke. 19. Both sides consider desirable to further the understanding between the two peoples.
6、 20. We would resist any armed (intervene) from outside in our countrys affairs. 三、三、翻译翻译 21. 结果是它们形成了对病毒的免疫力,它们的数量再次激增了。 (it 作形式主语) 22.他没再去过,也没写信致歉。(nor) 23.引起观众们兴趣的是这个年轻人怎样学会了五种外语。(it 强调句) 24.纵使如今排放量开始减少,我们依旧面临适应气候改变的挑战。(decrease) 25.阳光明亮刺眼,在地上投射出轮廓清晰的影子。(现在分词作状语) 一、阅读理解一、阅读理解 A Tristan da Cunha,
7、a British territory, is 2,300 miles east of South America and 1,600 miles west of South Africa. To reach it requires a seven-day boat trip from South Africa, and once youre there, you feel so much like youre at the edge of the world. Remote as it is, Tristan da Cunha is not without its conservation
8、threats. Invasive mice, brought by passing ships, kill about two million birds a year. The region has seen illegal fishing vessels. A 2017 report by Pristine Seas used satellite data to track fishing vessels in the area from 2014 to 2016. A majority of the 253 vessels traced by the satellite appeare
9、d to be passing through, but 11 showed activity consistent with fishing. Improper fishing activities can make seabirds, sharks, and other important species caught in nets or on fishing lines by accident. To stop the situation going from bad to worse, Tristan da Cunha will receive more resources for
10、patrolling its waters for illegal fishing activity to protect the marine areas. Marine protected areas (MPAs) are seen by experts as a conservation silver bullet. A study published on Tuesday in the Proceedings of the National Academy of Sciences further confirmed established scientific evidence tha
11、t MPAs worldwide protect seafood supplies by producing larger catch yields. Fisheries that are left undisturbed in Marine protected areas can produce a “spillover” effect in which an abundance of fish from a protected area “spill over” into fishing hotspots. Expanding the current network of protecte
12、d areas by just 5 percent, the study found, could boost global fish catch by at least 20 percent. “The increasing demand for seafood from the world human population explosion, in addition to the expected negative impacts of climate change on many fisheries, increases the need for managing and protec
13、ting fish sources well.” says Reniel Cabral, an ecologist at the University of California, Santa Barbara, and one of the studys authors. 1. Which country does Tristan da Cunha belong to? A. South Africa. B. America. C. Britain. D. Pristine. 2. Which of the following is not a threat to Tristan da Cun
14、ha? A. Illegal fishing B. Passing ships C. Alien mice D. Spillover effect 3. What benefit can MPAs bring to us? A. Increasing catch yields. B. Meeting the need for food. C. Improving the expected climate. D. Leaving the island undisturbed. 4. What can we learn from Reniel Cabral? A. Population explo
15、sion does harm to fish sources. B. The demand for seafood delays protecting fish sources. C. Protecting fish sources contributes to environment protection. D. The climate change will be bad for fisheries. B A wildfire is a fire that bums strongly and out of control on an area of grass or bushes. The
16、y often happens in rural areas and without purpose. The fires start from natural causes, like lightning. Humans can start fires with cigarettes or campfires, accidentally. Sometimes, people can set fires on purpose. This is to help an ecosystem and those that live there. These are controlled burns.
17、The fires help encourage healthy ecosystems and prevent larger, more damaging wildfires. Modem fire experts now know how to set controlled burns that are well planned and safe. Why is fire necessary? As dead or decaying plants begin to build up on the ground, they may prevent organisms in the soil f
18、rom getting nutrients. They may keep animals on the land from getting to the soil. This coating of dead matter can also choke the growth of smaller or new plants. Whether through natural causes or not, fire removes that layer of decay. The soil gets nutrients from the burned material faster than if
19、it had slowly decayed over time. This allows healthy parts of the ecosystem to thrive. Some plants actually need fire to continue their life cycles. Seeds from some pine trees grow in pine cones covered in a thick sap(树液).The seeds release from the pine cones when fire melts the sap. Fires allow mor
20、e seeds to get to the soil and grow. In an ecosystem, native animals and plants have adapted to survive wildfires. For example, deaths from wildfires are low. They survive by burrowing into the ground or fleeing to safer areas. Humans are responsible for preventing most uncontrolled wildfires. Nearl
21、y 85 percent of wildfires start because of human activity. We have to prevent these damaging fires. Understanding the benefits of fire is the only way to truly keep our ecosystem safe from its dangers. 5How does controlled burning affect an ecosystem? AIt helps keep wildfires from getting too large.
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