选修6第四单元学案及答案

1、课题Book6Unit4 Revision姚在美 课型复习课学习目标知识目标1. 掌握重点词汇quantity, subscribe, oppose, average, circumstance, refresh, come about, result in, put up with, so long as等3. 掌握强调句能力目标1.在复习中学会“小题大做”，触类旁通。2.灵活运用语法知识，提高语法填空能力。情感目标树立节约能源、保护环境的主人翁意识重点熟练应用本单元的重点词汇短语难点语法填空教学内容与步骤学生活动. 知识点串讲1. glance一瞥，匆匆一看，强调动作的短暂 gaze凝视，注视，因惊异或赞赏而长时间无意识地凝视某人或某事物 glare怒视，带有敌对或威胁的态度 stare盯着看，含有无礼或粗俗的意味。 【练习】选择glance/gaze/glare或stare，并用其适当的形式填空 1) They stood at the top of the hill, _ at the splendid sunset. 2) The manager _ at the docum

2、ent and signed down his name. 3) The dog _ at the stranger and barked. 4) Dont _ , its rude! Keys: 1) gazing 2) glanced 3) glared 4) stare 2. environment n.环境 environmental adj.周围的，环境的 environmentalist n.环境保护主义者 3. state vt.声明, 陈述 n.状况，情况；国家 state+名词/that从句/wh-从句 statement n. 声明, 陈述 1) She is in a terrible state today. 她今天心情不好。 2) the head of state国家首脑 3) He has publicly stated his support for the policy. 他已公开声明他会支持那项政策。【练习】根据句子结构，用括号内所提供词的适当形式填空 1) The _ pointed out that the change of _ will ca

3、use certain great _ disaster.(environment) 2) It was _ that the new-elected president of U.S.A made a _ announcing new policies to reduce the consequence of economy crisis.(state) 3) Though the two Party usually _ with each other, they have reached an _ on the levels of green house gases they will allow. (agree) keys: 1) environmentalist; environment; environmental 2) stated; statement 3) disagree; agreement 4. quantity n量；数量(1) in quantity(in large amounts)/in large quantities大量地 完成句子Its a lot

4、cheaper if you _(大量购买)(2 ) A (large) quantity of /quantities of+名词（可数/不可数） A mount of/ amounts of+不可数名词 自我总结：quantity/amount 的用法有哪些？ _注意：以上短语修饰名词充当主语时，由quantity/amount的单复数决定谓语的单复数。 Large quantities of food were on the table. Only a small quantity of milk is offered in this area. 5. come about发生；造成(1)come about是不及物动词短语，不能接宾语，也没有被动语态。(2)come across偶然碰见，无意中找到come on跟着来，跟上来；口得啦，快点come out出来，出现；(芽)生出来；(花)开；出版，发行come to总计，达到；归纳为come up走近；上(楼)去；(从土中)长出，发芽；被提出come up with赶上；提出(建议) 完成句子(1)_(这种情况是如何发生的)th

5、at the dairy products were harmful to children? (2)He had never _(遇见过像Sheila这种人)(3)Is that the best excuse _(你能想出的)? 答案：(1)How did it come about(2)come across a person quite like Sheila(3)you can come up with 6. result in 导致 result from 由.产生Stress and tiredness often result in a lack of concentration. 紧张和疲劳常使人精神不集中。同义句：_ .自我总结: “导致和由.产生”的不同表达形式_ .II. 课文佳句背诵与仿写 1. 【原句】It was a scientist called Charles Keeling, who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1

6、975 to 1997.是一位名叫查尔斯.基林的科学家把19751997年期间大气层中中二氧化碳的含量作了精确地统计。自我总结：强调句 的用法有哪些？考题再现：（Unit 2综合试题完形）In the eighteenth century it was Alexander Pope 60 wrote the finest poetry in England. 60. A. which B. who C. when D. what（第14期报纸语法填空）68_ was with Harrys help that the police caught the robber the next day.2. 【原句】There 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. 毫无疑问，地球是在变暖，而地球变暖正是人类活动导致而成，并非

7、是一种无规律的自然现象。 【模仿】毫无疑问，太多的电脑游戏会对学生的健康有不良影响，而且玩电脑太多花费他们太多的时间导致花在学习上的时间太少。 _ 答案：There is no doubt that too many computer games can have a bad effect on students health and that it is playing too much computer that costs them too much time resulting in too little time 3. 【原句】They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.他们还赞同正是由于越来越多燃烧化石燃料导致了二氧化碳的增加。 【模仿1】我们都同意的是年轻一代应该负起振兴国家的责任。 _ 答案：We all agree that it is the younger gener

8、ation that should take up the responsibility to build 4. 3【原句】Some byproducts of this process are called “greenhouse” gases, the most important one of which is carbon dioxide.这个升温过程的一些副产品就叫做“温室”气体，其中最重要的是二氧化碳。 【模仿】一些可能的措施应采取以防止我们的地球越来越热，而其中最重要的措施之一是限制私家车的使用。_ 答案：Some possible actions should be taken to keep our earth from getting warm, the most important one of which is to limits the use of private cars. III. 课文要点 根据课文内容完成下面语法填空，注意单词拼写和词语用法： When 1 (compare) with most natural changes, that the temperature of the earth rose about one degree Fahrenheit during the 20th century is quite shocking. And its human activity 2 has caused this 3 (全

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