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1、Unit 4 Global warmingI. 完形填空阅读下面短文，掌握其大意，然后从各小题所给的四个选项 (A、B、C和D) 中，选出最佳选项。Today the scientific community is in almost total agreement that the earths climate is changing and that this represents a huge threat to the planet and to us. According to a survey, with only 69% accepting the earth is warmin
2、g only 1/4 Americans see global warming as a major threat, public opinion 1 the scientific conclusion.Climate scientists and campaigners have long debated how to better communicate the message to nonexperts so that climate science can be 2 into action. According to Christopher Rapley, the usual tact
3、ic(策略) of climate experts to provide the public with information isnt 3 because it does not address key potential causes. We are all exposed to the evidence of climate change on an almost a daily basis. The information is almost 4 .Then whats wrong? 5 our brains.Daniel Gilbert mentioned our brains f
4、ailure to accurately notice gradual change. Robert Gifford also _6_ the point about our brains difficulty in grasping climate change because of limited cognition and social _7_ with other people (Why should we change if X wont?) . A more powerful barrier is the 8 of perceived(感知的) behavioral control
5、; I m only one person; what can I do ? is certainly a big one. For many, the first challenge will be in recognizing barriers 9 they can overcome them.But for those of us who understand that climate change is a problem yet make little effort to cut the number of overseas trips we make or the amount o
6、f meat we consume, neither the uncaring attitude nor denial really explains the 10 between our actions and beliefs. Lertzman has come to the conclusion that the conflict between _11 _ both the planet and our way of life is too painful to bear. When we dont 12 the pain of that, thats when we get 13 a
7、nd cant move forward. Lertzman refers to this 14 as environmental melancholia(忧郁症), and points out that theres a lot to be said for providing a means 15 acceptable to talk about.Rosemary Randall suggests that climate change is such a(n) 16 subject that it can raise fears and anxieties that people fe
8、el have no 17 in polite conversation.Lertzman says the community has been slow to realize the value of psychology. Gifford says otherwise, _18_ climate change, and not mental health, is the biggest psychological problem.Despite the pain, shame, difficulty in fully addressing climate change, both Ler
9、tzman and Gifford are still _19_ about our ability to face up to the challenge. There cant be anything about the human mind that stops us struggling with these issues given that so many people 20 are maybe thats what we should be focusing on instead. says Lertzman.1. A. accounts forB. falls behindC.
10、 wishes forD. leaves behind2. A. translatedB. sprungC. forcedD. sent3. A. revolutionaryB. detailedC. popularD. enough4. A. unreliableB. unbearableC. unacceptableD. unavoidable5. A. SubmitB. ControlC. BlameD. Curse6. A. picks up onB. gets down toC. throws back onD. looks up to7. A. connectionsB. comp
11、arisonsC. competenceD. development8. A. senseB. problemC. lackD. effect9. A. ifB. thoughC. beforeD. since10. A. relationshipB. disagreementC. gapD. balance11. A. caring aboutB. taking onC. fighting againstD. putting away12. A. feelB. processC. rememberD. hide13. A. hitB. puzzledC. stuckD. stressed14
12、. A. conflictB. eventC. hesitationD. inability15. A. sociallyB. environmentallyC. culturallyD. morally16. A. complexB. controversialC. awkwardD. disturbing17. A. ideaB. goalC. placeD. choice18. A. somehowB. howeverC. thereforeD. either19. A. optimisticB. concernedC. cheerfulD. encouraged20. A. equal
13、lyB. stillC. especiallyD. alreadyII. 阅读理解A（2017新课标全国卷） A build-it-yourself solar still（蒸馏器） is one of the best ways to obtain drinking water in areas where the liquid is not readily available. Developed by two doctors in the U.S. Department of Agriculture, its an excellent water collector. Unfortuna
14、tely, you must carry the necessary equipment with you, since its all but impossible to find natural substitutes. The only components required, though, are a 55 sheet of clear or slightly milky plastic, six feet of plastic tube, and a container perhaps just a drinking cup to catch the water. These pi
15、eces can be folded into a neat little pack and fastened on your belt.To construct a working still, use a sharp stick or rock to dig a hole four feet across and three feet deep. Try to make the hole in a damp area to increase the water catchers productivity. Place your cup in the deepest part of the hole. Then lay the tube in place so that one end rest
