外研版 必修三Module 6 Old and New一轮复习课件(54张PPT)

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名称 外研版 必修三Module 6 Old and New一轮复习课件(54张PPT)
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科目 英语
更新时间 2023-03-29 12:39:02

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(共54张PPT)
学案(三) 高考语篇的价值发掘——提升学科素养
2017·全国卷Ⅲ·阅读理解C篇——对接课标主题:自然环境、自然遗产保护
After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canada 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, wolves 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 (来源) for the wolf — grew rapidly. These animals 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 the 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 a plan to reintroduce the wolves. The U.S.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 comeback.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.
?好题不厌百回做,每做一次都有新发现
1.What is the text mainly about
A.Wildlife 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.
解析:主旨大意题。纵观全文可知,本文主要谈了将灰狼重新引入黄石国家公园的原因以及这一举措的成效等,故选D。
语篇解读:本文是一篇说明文。在争议了几年之后黄石国家公园终于把灰狼重新引入公园,以保持公园内生态的平衡。
答案:D 
2.What does the underlined word “displaced” in paragraph 2 mean
A.Tested.      B.Separated.
C.Forced out. D.Tracked down.
解析:词义猜测题。由第二段第一句话可知,曾经在黄石公园里到处都能看见灰狼,下文提到但后来由于人类的发展灰狼数量逐渐减少,几乎消失了,因此可以推出,displaced意为“被迫离开”,故选C。
答案:C 
3.What did the disappearance of gray wolves bring about
A.Damage to local ecology.
B.A decline in the park's income.
C.Preservation of vegetation.
D.An increase in the variety of animals.
解析:推理判断题。 第三段提到由于灰狼的消失,鹿和麋鹿的数量快速增长,消耗了大量的植被,减少了植物种类同时丛林狼的数量增多,园内很多的红狐被猎杀,而河狸也被赶出了公园,由此推断出灰狼的消失对公园内的生态环境产生了损害。故选A。
答案:A
4.What is the author's attitude towards the Yellowstone wolf project
A.Doubtful. B.Positive.
C.Disapproving. D.Uncaring.
解析:观点态度题。根据最后一段最后一句中的“a valuable experiment”可知,作者认为这项工程很有价值,因此他的态度应当是积极肯定的。故选B。
答案:B
?文本精读固基础,高考强调基础扎实
(一)由文本积阅读词汇
1.reintroduce vt.        _________________
2.continental adj. ________________
3.practically adv. _____________________
4.disappearance n. ___________
5.diversity n. _________________
6.biologist n. __________
7.debate n.&v. __________
8.comeback n. _____________________
重新引入;再介绍
大陆的;大洲的
几乎;差不多;实际地
消失;失踪
多样性;差异(性)
生物学家
辩论;讨论
重返;复出;再度流行
B
A
B
C
D
(三)由文本积主题词块
1.years of heated debate ______________
2.go farther north into ... ______________
3.many unexpected results ___________________
4.major food sources _____________
5.consume large amounts of vegetation _______________
6.reduce plant diversity _______________
7.in the absence of wolves _________________
8.drive away ______
多年的激烈争论
向北深入……
许多意想不到的结果
主要食物来源
消耗大量的植被
减少植物多样性
在没有狼的情况下
赶走
(四)用文本词汇替换蓝体词汇
1.Due to the heavy snow, they were trapped in ( ) the house in the mountain.
2.Poor housing and unemployment are the main ( ) problems.
3.I hear quantities ( ) of money have been collected for the earthquake
-hit area.
were caught in
major
amounts
(五)在语境中悟微点语法
1.By last year,the Yellowstone wolf population had grown to more than 170 wolves.
分析:本句使用了__________时,其结构为“had+过去分词”;more than意为“超过,不仅仅”。
[对点练] 单句语法填空
①By the time Jack returned home from England, his son _____________(graduate) from college.
②—Did you have difficulty finding Ann's house
—Not really.She ___________(give) us clear directions and we were able to find it easily.
过去完成
had graduated
had given
定语
关系代词which
where
at which
(六)在语境中赏表达之美
1.(赏结构之美)Elk, deer, and coyote populations are down, while beavers and red foxes have made a comeback.
赏析:本句使用了表示转折关系的并列连词while(然而)使得引进灰狼的两种影响形成了鲜明对比。
[对点练——完成句子]
My husband loves adventurous life ______________________________.
我丈夫喜欢冒险的生活,而我则喜欢更平静的生活。  
while I enjoy a more peaceful life
2.(赏用词之美)These animals consumed large amounts of vegetation (植被), which reduced plant diversity in the park.
赏析:句子中使用consume“消耗”而不是eat“吃掉”,用reduced plant diversity而不是笼统的affected the plants,体现了自然科学类文章的严谨准确。
3.(赏意境之美)①After years of heated debate, gray wolves were reintroduced to Yellowstone National Park.
②Today, the debate continues over how well the gray wolf is fitting in at Yellowstone.
③The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well.
赏析:从以上句子尤其是句子中的years of heated debate, the debate continues和a valuable experiment to help等信息,可以想象保护自然是一个复杂的问题,但是保护自然就是保护自己,人们敢于尝试,对于黄石国家公园重新引入了灰狼以保持生态平衡所付出的很多努力,则体现了社会进步与人类文明的发展。而reintroduce wolves to other parts of the country也体现了这一案例对其他地区也有借鉴意义。
“课下主题训练”见“课下主题训练(六)”
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