B6Unit4Globalwarming-Languagepoints[课件]

1、Language points1What do you think green house gases do? 你认为温室气体有什么作用呢你认为温室气体有什么作用呢? 本句中本句中think后接了一个由后接了一个由what引导引导的宾语从句。的宾语从句。 但应注意的是：特殊宾语从句即当但应注意的是：特殊宾语从句即当一般疑问句主句的谓语动词是一般疑问句主句的谓语动词是 think, believe，suppose，consider, imagine，guess 和和 suggest 等时，表疑问的词等时，表疑问的词要放在主句前即句首。要放在主句前即句首。 例如：例如： 正正 Who do you

2、 think will win in the game? 误误 Do you think who will win in the game? 当然一般情况下宾语从句的疑问词当然一般情况下宾语从句的疑问词应放在主句之后，例如：应放在主句之后，例如： 误误 Why do you know we cant cut down the big tree? 正正 Do you know why we cant cut down the big tree?2. So how has this come about and does it matter? 考点考点 come about 是不及物短语，意为是不

3、及物短语，意为“发生发生”。 Please tell me how the accident_. I am still in the dark. (2005 江西江西) A. came by B. came out C. came to D. came about得到，获得得到，获得出来，出来， 露出露出达到达到Its already 10 oclock. I wonder how it _ that she was two hours late on such a short trip. (湖北湖北2006)A. came over B. came out C. came about D.

4、came up 点拨点拨 根据句意根据句意“已经十点钟了。我不已经十点钟了。我不知道是怎么回事，这么短的路程她迟到知道是怎么回事，这么短的路程她迟到了两个小时。了两个小时。”选选C。come over来访；来访；come out出来，出版；出来，出版；come up 出现，出现，到来。到来。3. 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

5、phenomenon. There is no doubt that. There is some doubt whether. 辨析：辨析：主句为肯定句时，主句为肯定句时，doubt 后使用后使用连词连词whether。主句为否定句时，。主句为否定句时，doubt后则使用连词后则使用连词that。 eg:Theres no doubt that one day a cure will be found. There is little doubt that he was the killer.考点考点1 There is no doubt that .是固定句是固定句型，意为型，意为“毫无疑

6、问毫无疑问”，that引导的引导的是同位语从句，用来进一步补充说明是同位语从句，用来进一步补充说明doubt的具体内容。的具体内容。考例考例 Some researchers believe that there is no doubt _ a cure for AIDS will be found. (广东广东2005)A. which B. that C. what D. whether点拨点拨 根据固定搭配根据固定搭配there is no doubt that .可知选可知选B。考点考点2 it is . that .在此句中构成强调句在此句中构成强调句型，强调的是主语型，强调的是主语

7、human activity。强调句。强调句型除谓语不能强调外，可强调主语、宾语型除谓语不能强调外，可强调主语、宾语或状语。或状语。考例考例1 It is not who is right but what is right _ is of importance. (重庆重庆2007)A. which B. itC. that D. this 点拨点拨 根据强调句型的判断方法：将根据强调句型的判断方法：将it is和和that去掉后，此句成为去掉后，此句成为Not who is right but what is right is of importance，是一个，是一个完整的句子，故此题是

8、一个强调句型。完整的句子，故此题是一个强调句型。考例考例2 I dont mind her criticizing me, but _ is how she does it that I object to. (江西江西2007)A. itB. thatC. this D. which 点拨点拨 去掉去掉it is和和that后，本句相当于后，本句相当于., but I object to how she does it，是个完，是个完整的句子。故此句是整的句子。故此句是it强调句型，被强强调句型，被强调部分是宾语从句。调部分是宾语从句。4. amount of习惯用语：习惯用语： an am

9、ount of 相当数量的相当数量的; 一些一些 any amount (of) 任何数量任何数量(的的); 大量大量(的的) be of little amount 不重要不重要; 无价值无价值 n. 数量数量 large amounts of money 大量的金钱大量的金钱 In an invoice the amount of money should be written both in words and in figures. 发票上的钱数要用字和数码写出来。发票上的钱数要用字和数码写出来。5Without the green house effect，the earth wou

10、ld be about thirty-three degrees Celsius cooler than it is. 如果没有温室效应，地球会比现在如果没有温室效应，地球会比现在冷冷33。 这是一个含蓄虚拟条件句这是一个含蓄虚拟条件句 应该注意有时假设的情况并不以条件应该注意有时假设的情况并不以条件从句形式表示出来，而是通过一个介从句形式表示出来，而是通过一个介词短语或其他方式表示。常用的词或词短语或其他方式表示。常用的词或短语有：短语有：without, but for，but that，otherwise，or，but等。等。 例如：例如： Without your help ( = I

11、f we had not had your help)，we could not have succeeded 要是没有你的帮助，我们是不会成要是没有你的帮助，我们是不会成功的。功的。 But for electricity (= If there were no electricity)，there would be no modem industry 要是没有电，就不会有现代工业。要是没有电，就不会有现代工业。 He was having a meeting with his students；otherwise he would have come. 他当时正与他的学生进行讨论，否则他当

12、时正与他的学生进行讨论，否则的话他就来帮我们了。的话他就来帮我们了。 He felt very tired yesterday, or he would have attended the party 他昨天很累他昨天很累, 不然他就参加那个聚不然他就参加那个聚会了。会了。6. It was a scientist called Charles Keeling who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. 翻译翻译 是一位名叫查尔斯是一位名叫

13、查尔斯奎林的科学家奎林的科学家把把1957至至1997年期间大气层中二氧化碳的年期间大气层中二氧化碳的含量作了精确的统计。含量作了精确的统计。点拨点拨 该句是一个该句是一个it was . who强调句。强调句。a scientist called Charles Keeling是被强调是被强调部分，其中部分，其中called Charles Keeling为过去为过去分词短语作后置定语，修饰分词短语作后置定语，修饰a scientist。7. result in 导致导致, 造成造成 =lead to The accident resulted in three people being k

14、illed. 这一事故导致他的死亡。这一事故导致他的死亡。 The accident resulted in his death.8. On the other hand, there are those, like George Hambley, who are opposed to this view, believe that we should not worry about high levels of carbon dioxide in the air .翻译翻译 在另一方面在另一方面, 还有一些人，对这还有一些人，对这一观点持反对态度，像科学家乔治一观点持反对态度，像科学家乔治汉

15、汉布利，他们认为我们不必担心空气中高布利，他们认为我们不必担心空气中高含量的二氧化碳。含量的二氧化碳。点拨点拨 该句是一个主从复合句。主句为该句是一个主从复合句。主句为there are those，like scientist George Hambley作句子的插入语，作句子的插入语，who引导的引导的定语从句修饰定语从句修饰those，且在该定语从句中，且在该定语从句中其谓语动词其谓语动词believe又带有又带有that引导的宾引导的宾语从句。句子的主要部分可以表示为语从句。句子的主要部分可以表示为: . there are those who believe that . on th

16、e other hand: used to give another opinion or fact that should be considered as well as the one you have just given 另一方面另一方面 also on the one hand. . on the other hand Id like to eat out, but on the other hand I should be trying to save money. I want to go to the party, but on the other hand I ought

17、to be studying. 我想去参加聚会，但从另一方面来我想去参加聚会，但从另一方面来说，我应该留下来学习。说，我应该留下来学习。9. consequence in consequence 因此因此 as a consequence 结果结果 as a consequence of 由于由于的结果的结果10. range in /within range 在射程之内在射程之内 out of / beyond range 在射程之外在射程之外11. build up Build up the business Sediment (沉淀物沉淀物)builds up on the ocean

18、floor. This built up my hope after the interview.develop 扩大扩大, 发展发展 collect 累积累积, 收集收集 增加增加, 支持支持, 树立树立12. even if /though: used to emphasize that, although something may happen or may be true, it will not change a situation I wouldnt tell you even if I knew. Even if she survives, shell never fully

19、recover. Even though hes 24 now, hes still like a little child. I can still remember, even though it was so long ago.I. 根据下列各句句意及所给单词的首字母根据下列各句句意及所给单词的首字母或汉语提示，写出各单词的正确形式。或汉语提示，写出各单词的正确形式。1. A large q_ of rice is badly needed here.2. Students are from a wide r_ of backgrounds.3. She studied hard, an

20、d in c_ she passed the exam.4. The park attracts 4 million visitors p_ year.quantityrangeconsequenceper5. What sort of _ (燃料燃料) do these machines need?6. The _ (数据数据) is still being analysed. So dont be so worried.7. The earthquake was a terrible _ (大灾难大灾难).8. A rainbow is a natural _ (现现象象) especia

21、lly after a heavy rain.10. The _ (曲线图曲线图) of export indicates a new success of the company.graphfuel data catastrophephenomenonII. 根据句意根据句意,选择适当的单词或短语填空选择适当的单词或短语填空1. climate; weathera. Its very difficult for her to get used to the dry and cold _ there.b. How we wish the sunny _ could keep up for an

22、other several days!2. come about; come acrossa. Ive never _ anyone quite like her before.b. Please tell me how the accident _. I am still in the dark. climateweathercome acrosscame about3. quantity; quality a. Much of the land was of poor _.b. Buy vegetables in small _, for your immediate use.4. res

23、ult in; result froma. The accident _ the death of three people.b. His failure _ not working hard enough.qualityquantitiesresulted inresulted from5. glance; glare; starea. He _ angrily at her across the dinner table.b. She _ at the page for several minutes, trying to understand.c. She _ round the roo

24、m before she left.glaredstaredglancedIII. 每空一词每空一词, 使两个句子的意思相同。使两个句子的意思相同。1. It was very late, but they went on working.It was very late, but they _ _ working.2. We dont doubt that he can do a good job._ _ _ _ _ he can do a good job.3. Their carelessness led to the failure.Their carelessness _ _ the failure.kept onThere is no doubt thatresulted in4. I dont know how the accident happened.I dont know how the accident _ _.5. The factory turns out a large number of paper products.The factory turns out _ _ _ _ paper products.6. Although