2019-2020學年高中英語 Unit 4 Global warming Section Ⅲ Grammar教學案 新人教版選修6

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1、Section Ⅲ　Grammar——it的用法(二) 課前語法感知 Ⅰ.教材語法感知 教材原句 ①There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon. ②It was a scientist called Charles Keeling who made accurate measurements of the a

2、mount of carbon dioxide in the atmosphere from 1957 to 1997. ③They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. 探究發(fā)現(xiàn) (1)強調(diào)句型的結(jié)構(gòu)是：It_is/was＋被強調(diào)部分＋that＋句子的其他成分，如例句①、③。 (2)當被強調(diào)部分是人時，也可用who，如例句②。 Ⅱ.真題語法感知 1．(2018·天津高考)It was

3、only when the car pulled up in front of our house ________ we saw Lily in the passenger seat. 答案：that 2．(2018·浙江高考)It was then ________ my mind raced. 答案：that 3．(2017·天津高考)It was when I got back to my apartment ________I first came across my new neighbors. 答案：that 4．(2016·天津高考)You are waiting

4、at a wrong place. It is at the hotel ________ the coach picks up tourists. 答案：that 5．(2015·湖北高考)It was in this lake________ they found the long-lost sword of the Ming Dynasty. 答案：that 課堂合作探究 一、it構(gòu)成的強調(diào)句式 it可用來構(gòu)成強調(diào)句式“It is/was＋被強調(diào)部分＋that/who ...”，用以強調(diào)句子的主語、賓語、狀語等成分。 名師點津 強調(diào)句型的幾個注意事項：

5、(1)強調(diào)句式中的it與that都沒有意義，若把強調(diào)句式部分去掉，剩下的部分在句子結(jié)構(gòu)與意義上仍然完整。 (2)強調(diào)句型的特殊疑問句形式用于主從復合句中的名詞性從句時，其語序應用陳述句語序。 (3)強調(diào)句型與定語從句相結(jié)合，若強調(diào)句型中的被強調(diào)部分含有定語從句，注意對定語從句引導詞及強調(diào)句型中的that要做出正確的判斷。 ①Do you know what it is that they will talk about at the party? 你知道他們在聚會上將要談論些什么嗎？ ②It was in the school where they had their schooli

6、ng that they had a get-together again twenty years later. 在他們曾接受學校教育的學校里，他們20年后又聚在了一起。 二、it引起的關(guān)于時間的易混淆的句型 【即景活用】 (1)單句語法填空 ①Was ________ on a lonely island that he was saved one month after the boat went down? ②Can you explain why it ________ that the sun goes down in the west? ③It is e

7、ither he or you who ________ in charge of the project and supposed to finish it punctually. ④It will be half a year ________ my son comes back from America. ⑤He was so busy yesterday that it was not until late at night ________ he finished his work. ⑥It is five months ________ my son went to Amer

8、ica. 答案：①it　②is?、踑re　④before?、輙hat?、辳ince (2)單句寫作 ①是張教授正在打電話。 ________ Professor Zhang ________ is talking on the phone. ②這個病人需要的是更好的食物和更多的陽光。 ________ better food and more sunshine ________ the patient needs. ③你是在哪里找到你丟失的那本書的？ ____________________ you found your lost book? ④是你哥哥在那家公司工作嗎？

9、____________________ in that company? ⑤直到昨天我才注意到它。 ________________________ I noticed it. ⑥我不記得是什么時候你開始做這個工作的了。 I can't quite remember __________________ you started doing the work. ⑦只有在最近我重讀他的詩時，我才欣賞到它們的美。 ________________ I reread his poems recently that I began to appreciate their beauty.

10、⑧只有通過這種方式我們才能按時完成工作嗎？ ________________ in this way ________ we can finish the work on time? 答案：①It is; who/that?、贗t is; that?、踂here was it that　④Is it your brother who/that works?、軮t was not until yesterday that　⑥when it was that?、逫t was only when　⑧Is it only; that 課后演練提能 [基礎(chǔ)題] Ⅰ.單句語法填空 1．It w

11、as after he got what he had desired ________ he realized it was not so important. 答案：that 2．It was on the farm ________ he spent his childhood that he learned how to grow vegetables. 答案：where 3．I just wonder ________ it is that makes him so excited. 答案：what 4．I don't mind her criticizing me, b

12、ut ________ is how she does it that I object to. 答案：it 5．It was in the small house ________ was built with stones by his father ________ he spent his childhood. 答案：which/that; that Ⅱ.單句改錯 1．It was with the help of the local guide the mountain climber was rescued. ______________________________

13、____ 答案：guide后加that 2．It is two years that he studied in the middle school. __________________________________ 答案：that→since或years后加ago 3．It was 80 years before Christopher Columbus crossed the Atlantic when Zheng He had sailed to East Africa. __________________________________ 答案：when→that

14、4．That is because of his illness that he couldn't attend the meeting. __________________________________ 答案：That→It 5．We don't know why it is she came so late. __________________________________ 答案：is后加that Ⅲ.單句寫作 1．正是在密西西比河岸一帶馬克·吐溫度過了他的大部分童年時光。 ________________ the Mississippi River _______

15、_ Mark Twain spent much of his childhood. 答案：It was along; that 2．是在六年前他開始學習中文的嗎？ ____________ six years ago ________ he began to learn Chinese? 答案：Was it; that 3．是李教授教你們英語嗎？ ____________ Professor Li ________ teaches you English? 答案：Is it; that/who 4．正是因為這個原因她叔叔搬離了紐約。 ________________ this

16、 reason ________ her uncle moved out of New York. 答案：It was for; that 5．是誰泄露的這個秘密？ ____________________ let out the secret? 答案：Who was it that [能力題] Ⅰ.閱讀理解 A (2017·全國卷Ⅲ)After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Ca

17、nada and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves. Gray wolves once were seen here and there in the Yellowstone area and much of the continental United States, but they were gradually displaced by human development. By the 1920s, wolve

18、s had practically disappeared from the Yellowstone area. They went farther north into the deep forests of Canada, where there were fewer humans around. The disappearance of the wolves had many unexpected results. Deer and elk populations—major food sources (來源) for the wolf—grew rapidly. These anim

19、als consumed large amounts of vegetation (植被), which reduced plant diversity in the park. In the absence of wolves, coyote populations also grew quickly. The coyotes killed a large percentage of the park's red foxes, and completely drove away the park's beavers. As early as 1966, biologists asked t

20、he government to consider reintroducing wolves to Yellowstone Park. They hoped that wolves would be able to control the elk and coyote problems. Many farmers opposed the plan because they feared that wolves would kill their farm animals or pets. The government spent nearly 30 years coming up with

21、a plan to reintroduce the wolves. The US Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone. Today, the debate continues over how well the gray wolf is fitting in at Yellowstone. Elk, deer, and coyote populations are down, while beavers and red foxes have made a c

22、omeback. The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well. 篇章導讀：本文是一篇說明文。以前在黃石地區(qū)隨處可見的灰狼消失了?；依堑南бl(fā)了一系列生態(tài)問題。鑒于此，政府啟動了一項歷時30年的引進和繁育狼的計劃，迄今為止已經(jīng)取得了很好的成效。 1．What is the text mainly about? A．Wildli

23、fe research in the United States. B．Plant diversity in the Yellowstone area. C．The conflict between farmers and gray wolves. D．The reintroduction of wolves to Yellowstone Park. 答案：D　主旨大意題。文章主要講述的是重新將灰狼引入黃石公園的原因和這一方案從提出到實施的經(jīng)過及其會產(chǎn)生的影響。故選D。 　 2．What does the underlined word “displaced” in Parag

24、raph 2 mean? A．Tested. B．Separated. C．Forced out. D．Tracked down. 答案：C　詞義猜測題。根據(jù)上文可知，灰狼曾經(jīng)隨處可見，再結(jié)合下文“wolves had practically disappeared”可知，與displaced意思最接近的是C項“被迫離開”。 3．What did the disappearance of gray wolves bring about? A．Damage to local ecology. B．A decline in the park's income. C．Prese

25、rvation of vegetation. D．An increase in the variety of animals. 答案：A　推理判斷題。由第三段可知，灰狼的消失產(chǎn)生了很多意想不到的結(jié)果。鹿及麋鹿的數(shù)量快速增加，導致那里的植被被破壞，而且由于沒有灰狼，叢林狼吃掉大量赤狐，并將河貍趕出公園。由此可知，灰狼的消失導致當?shù)氐纳鷳B(tài)失去平衡。故選A。 4．What is the author's attitude towards the Yellowstone wolf project? A．Doubtful. B．Positive. C．Disapproving. D．U

26、ncaring. 答案：B　觀點態(tài)度題。由最后一段可知，灰狼回歸后，鹿及麋鹿的數(shù)量減少了，而河貍和赤狐又回來了，再由“a valuable experiment to help”等可推知，作者對于黃石狼項目持肯定態(tài)度。故選B。 1．transport v. 運送；運輸；流放 2．diversity n. 多樣性；差異 3．reintroduce v. 再引入；再介紹 1．in the absence of 缺乏；不存在 2．drive away 趕走；驅(qū)散 3．come up with 提出；想出 B (2019·浙江省稽陽聯(lián)誼學校高三聯(lián)考)With thei

27、r pipes and lids to avoid spills, coffee cups have long been the substitute for adults. Now Starbucks is going all in on the concept by swearing to get rid of straws by 2020—and it's all for a very good reason. This move is an answer to our own partners about what we can do to reduce the need for st

28、raws. Not using a straw is the best thing we can do for the environment. In place of plastic straws, Starbucks plans to offer recyclable lids for all iced drinks and paper straws for coffee. The transition is already taking place in Starbucks' hometown of Seattle, where a ban on plastic straws went

29、 into place on July 1. By rolling this out in all 28,000 of their stores by 2020, the company says they are annually removing more than one billion straws from going into circulation—and potentially the ocean. Starbucks' decision to gradually stop using single-use plastic straws is a shining exampl

30、e of the important role that companies can play in stopping the tide of ocean plastic. With eight million metric tons of plastic entering the ocean every year, we cannot afford to let industry sit on the sidelines. Marine life has a 50% death rate when it swallows plastic—yet researchers believe the

31、re will be more plastic in the ocean than fish by the year 2050 if this rate of litter continues. That means there can be an immediate positive impact if we swap plastic straws for environmentally friendly alternatives. The smart design on the cup for cold drinks comes from Starbucks' in-house team

32、 of designers and has been in development for two years. However, the announcement comes as outcry (尖叫；倒彩) increases over the dangers that plastic straws can cause to marine life. Other companies making the eco-friendly swap also announced plans last month to test alternatives to plastic straws. 篇章

33、導讀：本文是一篇說明文。文章介紹Starbucks倡導不使用塑料吸管來減少白色污染，保護海洋和環(huán)境。 5．Why does Starbucks decide to get rid of plastic straws? A．To reduce its cost. B．To meet the customers' needs. C．To create a greener planet. D．To expand its business worldwide. 答案：C　細節(jié)理解題。根據(jù)第一段最后一句“Not using a straw is the best thing we can d

34、o for the environment.”可知答案為C。 6．What does the word “transition” in Paragraph 2 refer to? A．Dilemma. B．Change. C．Response. D．Conflict. 答案：B　詞義猜測題。根據(jù)第二段第一、二句可知，文中提到用另外兩種環(huán)保產(chǎn)品替代塑料吸管，因而推斷這是一種變化，故B項正確。 7．The tone of the author in referring to marine life can be described as ________. A．humorou

35、s B．a(chǎn)pproving C．enthusiastic D．concerned 答案：D　推理判斷題。根據(jù)第三段倒數(shù)第二句可知，因為白色污染，對海洋生物的生存造成很大威脅，對海洋的生態(tài)破壞嚴重，作者為此憂心忡忡，故選D。 8．What's the text mainly about? A．Starbucks is throwing away plastic straws for a worthy cause. B．Environmentally friendly material will replace plastic straws. C．Scientists are

36、making efforts to solve ocean plastic pollution. D．A sales promotion of a new brand by Starbucks is being done. 答案：A　主旨大意題。本文講述了Starbucks為了環(huán)保事業(yè)倡導不使用塑料吸管來減少白色污染，故A項為最佳答案。 Ⅱ.語法填空 The language of love Music is a universal language, which has the most powerful magic in the world. Music is a sweet

37、language to show love to those who love us and those who __1__ (love) by us. Music is also a friendly language for unfamiliar people to show kindness. It is living everywhere and all the time in our daily life. I learned this while __2__ (take) care of a seagull unfortunate enough to swallow a hook

38、 (掛鉤). After calling the wildlife rescue center and learning that all its __3__ (vehicle) were out on other business, I carefully __4__ (wrap) the wild bird in a towel and carried him to my friend's car. The only way __5__ (keep) him calm was by singing. For 30 minutes, I sang __6__ (soft) to the

39、small creature until finally delivering him __7__ those who could help. I'm not certain __8__ happened afterward, but for that brief period, we two vastly different species connected, __9__ (bridge) the gap between us through songs. __10__ doesn't matter whether there will be difficulties in communication, for love is always the theme of each piece of music. 1．________　2.________　3.________　4.________ 5．________　6.________　7.________　8.________ 9．________　10.________ 答案：1.are loved　2.taking　3.vehicles　4.wrapped　5.to keep　6.softly　7.to　8.what　9.bridging　10.It - 11 -