高一下学期英语（（2020新版）外研版）必修三第六单元 Disaster and hope 练习学案21.doc

1、聊城一中高一英语必修三聊城一中高一英语必修三 Unit6Unit6 练习学案练习学案 21 21 1 B3 Unit6 Disaster and hope . 根据要求填空。根据要求填空。 1. Its surprising that your brother _ （学会俄语） so quicklyhe hasnt lived there very long. 2. Buried in the farm work, Tom didnt notice the _（erupt）occur. 3. Recently a survey_（compare）prices of the same goods

2、 in two different supermarkets has caused heated debate among citizens. 4. _(与旧房子相比), the new one is like a huge palace. 5. According to the timetable, the train is due to leave in five minutes. Well never make _. 6. Be careful when you cross the road in the rush hour so as to avoid _ （knock） down b

3、y a car. 7. After he_ the earthquake，the old man became one of the few _ of the family and his _ made his old friends very happy. (survive) 8. He _（浏览）his notes before the exam. 9. They havent formally _ (宣布) their engagement yet. 10. A brilliant idea _ (被我想到) this morning when I was brushing my tee

4、th. II. 课文句子翻译并背诵课文句子翻译并背诵。 1.在地铁站捡到一份免费报纸，我看到标题是“热！热！热！”。 _ 2.果然，下楼梯上月台就像跳进一座正在喷发的火山。 _ 3.然而，与火车比，这根本算不了什么。 _ 4.我希望能撑到银行站。 _ 5. 浏览我的报纸，我对亚洲飓风摧毁了一个城镇的照片感到震惊。 _ 6.专家表示，这种恶劣天气的发生是由气候变化造成的。 _ 7.既然地球上很难避免灾难，也许我应该开始考虑移居太空了。 _ 8.心情沉重地走出车站，我突然感受到微风拂面。 _ III. 阅读理解阅读理解 Climate change, not human hunting,may h

5、ave wiped out the thylacine (袋狼), according to a new study based on DNA from thylacine bones. The meat-eating marsupials (有袋动物) died out on mainland Australia a few thousand years ago, but survived in Tasmania, an island of southeast Australia separated from the mainland,until the 1930s. Scientists

6、had believed the cause of this mainland extinction was the increasing activities from native Australians and dingoes (Australian wild dogs). Scientists behind the University of Adelaide study, which was published in the Journal of Biogeography on Thursday, collected 51 new thylacine DNA samples from

7、 fossil bones and museum skins the largest data set of thylacine DNA to date. The paper concluded that climate change starting about 4,000 years ago in particular drier seasons caused by the weather systems known as El Nino-Southern Oscillation was likely the main cause of the mainland extinction. T

8、he ancient DNA showed that the mainland extinction of thylacines was rapid, and not the result of loss of genetic diversity. There was also evidence of a population crash in thylacines in Tasmania at the same period of time, reducing their numbers and genetic diversity. Associate Professor Jeremy Au

9、stin, deputy director of the Universitys Australian Centre for Ancient DNA, said Tasmania would have been protected from mainland Australias warmer, drier climate due to its higher rainfall. He argued that climate change was “the only thing that could have caused, or at least started,an extinction o

10、n the mainland and caused a population crash in Tasmania.” “They both occurred at about the same time, and the other two things that have been talked about in the past that may have driven thylacines to extinction on the mainland were dingoes and humans.So the only explanation thats left is climate

11、change. And because that population crash happened at the same time that the species went extinct on the mainland, our argument is theres a common theme there and the only common theme thats there is this change in climate.” 聊城一中高一英语必修三聊城一中高一英语必修三 Unit6Unit6 练习学案练习学案 21 21 2 1.What happened to thyla

12、cines in the 1930s? A.They died out on mainland Australia. B. They were hunted in large numbers. C.They survived in Tasmania. D. They were no longer seen. 2.What did scientists believe before the University of Adelaide study? A. Marsupials were all meat-eating animals. B. Dingoes should be removed f

13、rom Australia. C. Thylacines had no enemies . D. Native people were responsible for the extinction of thylacines. 3.Whats the difference between mainland Australia and Tasmania? A. Tasmania has more dingoes. B. Tasmania has more wet days. C. Tasmania has a higher temperature. D. Tasmania has more na

14、tive Australians. 4.Whats the best title for the text? A. DNA is playing an important role. B. Climate change led to thylacines disappearance. C. Australian animals are facing a population crash. D. Native Australians and dingoes were misunderstood. IV.七选五七选五 Deciding whether or not to take part in

15、an extracurricular (课外的) activity can be a challenge. Before signing up to play on the volleyball team, first consider the advantages and disadvantages of such a decision. 1 Students are successful when they take part in many activities. They do well in their classes and feel more connected to schoo

16、l. Research shows that students in extracurricular activities have better attendance and grades. Extracurricular activities also help students make new friends and lasting relationships. 2 Even though we became friends a long time ago,we are still close today. While these activities have many advant

17、ages, students should consider the downside as well. 3 Extracurricular activities can be too much for students who do not practice good time management. Students need to be good at managing their time between different activities. Another downside to extracurricular activities involves transportatio

18、n. 4 This situation limits students extracurricular choices to those outside the school and closer to home. A few of my classmates joined the schools cultural club. They later discovered that it met after school. These students dropped out of the club because they had to catch their buses. Only you

19、can decide if extracurricular activities are right for you. Activities outside the school can help you succeed in many areas of your life. 5 Are you up for a challenge? A.We were both in the eight-and-under age group. B. Some clubs or sports meet before or after school. C. One downside is that it ca

20、n create a busy life for students. D. Many students are tired from all the things they have to do. E. Taking part in extracurricular activities has many advantages. F. I met my best friend when we were on the YMCA swim team. G. However, you need good time management skills to deal with a busy life.

21、V.语法填空语法填空 The jaguar (美洲豹) is the largest cat in the Americas. A hundred years ago, jaguars 1._ (find) everywhere from the southwestern United States to Argentina, in South America. Today, jaguars are an endangered species throughout their 2._(nature) habitat and have been lost from 50 percent of t

22、heir territory. Today they live 3._(most) in the Amazon rainforest. And jaguars arent the only animals losing their homes according 4._the International Union for Conservation of Nature, habitat loss 5._(be) the main threat to about 85 percent of all endangered plant and animal species. Tropical rai

23、nforests cover only about 7 percent of Earths land, but theyre home to about half of all known plant and animal species. Most 6._(scientist) agree that about 80,000 acres (an acre is equal to 4,047 square metres) disappear every day when trees are cut down and land is cleared for farms. Trees also p

24、lay 7._important role in climate change. Fewer forests mean that more greenhouse gases remain 8._(trap) in the atmosphere, the mixture of gases that surrounds the Earth. Grasslands, underwater habitats, and wetlands are also at risk. For example, the World Wildlife Fund reports that about half of th

25、e worlds wetlands 9._ (disappear) since a hundred years ago as a result of being drained (排水) for either farmland 10._other industries. That means less space for animals to feed and raise their young. 聊城一中高一英语必修三聊城一中高一英语必修三 Unit6Unit6 练习学案练习学案 21 21 3 B3 Unit6 Disaster and hope 练习学案练习学案 21 答案答案 . .

26、单词拼写单词拼写 1. picked up Russian 2. eruption 3. comparing 4. Compared with/to the old house 5. it 6. being knocked 7. survived; survivors; survival 8.looked through 9. announced 10. occurred to me . 见课文见课文 III. 阅读理解阅读理解 【篇章导读】本文是说明文。最新研究发现,澳洲袋狼的灭绝源于气候变化,而非土著人和野狗的威 胁。 1.D 细节理解题。 由第二段中的“The meat-eating m

27、arsupials.until the 1930s.”可知, 到二十世纪三 十年代,袋狼彻底绝种了。 2.D 细节理解题。由第二段中的“Until now, scientists had believed.native Australians and dingoes (Australian wild dogs)”可知, 在这项研究发布之前,科学家们一直认为是土著人和澳大利亚野狗造 成了袋狼的灭绝。 3.B 推理判断题。由第五段中的“Tasmania would have been protected from mainland Australias warmer, drier climate

28、due to its higher rainfall.”可知, 塔斯马尼亚降雨量大,气候潮湿。 4.B 标题归纳题。文章首段即点明中心袋狼的灭绝是由气候变化造成的, 文末又对这一观点 进行了呼应。B 项做标题最能概括文意。 IV.【篇章导读】本文是议论文。要不要参加课外活动对于许多学生来说是个需要权衡利弊的问题。 1.E 本空为本段的主题句, 本段主要阐述了参加课外活动的学生们在学习方面表现更突出, 即参 加课外活动的好处。 2.F 本空是对前一句的举例说明, 且下一句中的we became friends与 F项中的I met my best friend 在语意上相关。 3.C 由本空前一

29、句可知,本段开始阐述参加课外活动的弊端; 而本空后面的内容是对本空的进一 步解释说明,阐述的是其中一个弊端,即让学生们更繁忙。 4.B B 项内容与下一句形成因果关系, 本空后面的 This situation 指代 B 项内容。 5.G 本空前一句与 G 项内容形成转折关系, 即课外活动虽有好处, 但学生们需要恰当巧妙地安排 时间,以应对繁忙的生活。 V. 语法填空 1.were found 考查一般过去时的被动语态。设空处所在句意为“一百多年前,从美国的西南部到阿 根廷都能发现美洲豹的踪影”, 故 find 与 jaguars 之间是被动关系, 应用被动语态, 且由 A hundred y

30、ears ago 可知, 此处应用一般过去时,故填 were found。 2.natural 考查形容词做定语的用法。 设空处做定语修饰habitat, 表示“自然的”,故填形容词natural。 3.mostly 考查副词。设空处做状语修饰谓语动词 live, 表示“主要地”, 故填副词 mostly。 4.to 考查介词。according to 意为“按照,根据所说”。 5.is 考查主谓一致。 设空处所在句描述现在的情况, 应用一般现在时, 因为主语是 habitat loss, 故 填 is。 6.scientists 考查名词复数。设空处做主语,表示“科学家”, 因为 scien

31、tist 是可数名词, 由 Most 及谓 语动词 agree 可知, 此处应填 scientists。 7.an 考查不定冠词。设空处所在句意为“树木在影响气候变化方面起着重要作用”, 故填 an. play an important role in.“在方面起重要作用”。 8.trapped 考查过去分词做表语的用法。设空处所在句意为“森林面积的减少意味着越来越多的温 室气体停留在大气层里” trap 与 greenhouse gases 之间是被动关系, 故填过去分词 trapped。 9.have disappeared 考查现在完成时。由 since a hundred years ago 可知, 此处应用现在完成时, 因 为主语是 half of the worlds wetlands, 故填 have disappeared。 10.or 考查连词。either.or.“或者或者”。