B6U4Languagepoints(知識點).ppt

選修6 Unit 4,英 語 課 件,Language points 1,1. What do you think green house gases do? 你認為溫室氣體有什么作用呢? 本句中think后接了一個由what引導的賓語從句。,Language points 1,但應注意的是：特殊賓語從句即當一般疑問句主句的謂語動詞是think, believe，suppose，consider, imagine，guess和suggest等時，表疑問的詞要放在主句前即句首。,例如： 你認為誰將在這場比賽中獲勝？ 誤 Do you think who will win in the game? 正 Who do you think will win in the game?,當然，一般情況下賓語從句的疑問詞應放在主句之后，例如： 誤 Why do you know he didnt come to school yesterday? 正 Do you know why he didnt come to school yesterday?,2. So how has this come about and does it matter?,考點 come about是不及物短語，意為“發(fā)生”。指事情已經(jīng)發(fā)生了，但不知道為什么，常用語疑問句或否定句中。 Please tell me how the accident _. I am still in the dark. (2005 江西) A. came by B. came out C. came to D. came about,得到,從旁邊走過,出來， 露出,達到,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 phenomenon. There is no doubt that. There is some doubt whether. 辨析：主句為肯定句時，doubt后使用連詞whether。主句為否定句時，doubt后則使用連詞that。,e.g.: Theres no doubt that he doesnt like English. There is little doubt that he was the killer.,There is some doubt whether he is a thief.,考點1 There is no doubt that .是固定句型，意為“毫無疑問”，that引導的是同位語從句，用來進一步補充說明doubt的具體內(nèi)容。 考例 Some researchers believe that there is no doubt _ a cure for AIDS will be found. (廣東2005) A. which B. that C. what D. whether 點撥 根據(jù)固定搭配there is no doubt that .可知選B。,考點2 it is . that .在此句中構(gòu)成強調(diào)句型，強調(diào)的是主語human activity。強調(diào)句型除謂語不能強調(diào)外，可強調(diào)主語、賓語或狀語。 考例1 It is not who is right but what is right _ is of importance. (重慶2007) A. which B. it C. that D. this 點撥 根據(jù)強調(diào)句型的判斷方法：將it is和that去掉后，此句成為Not who is right but what is right is of importance，是一個完整的句子，故此題是一個強調(diào)句型。,考例2 I dont mind her criticizing me, but _ is how she does it that I object to. (江西2007) A. it B. that C. this D. which 點撥 去掉it is和that后，本句相當于., but I object to how she does it，是個完整的句子。故此句是it強調(diào)句型，被強調(diào)部分是賓語從句。,4. amount of 習慣用語： an amount of 相當數(shù)量的; 一些 any amount (of) 任何數(shù)量(的);大量(的) large amounts of money 大量的金錢,5Without the green house effect, the earth would be about thirty-three degrees Celsius cooler than it is. 如果沒有溫室效應，地球會比現(xiàn)在冷33。 這是一個含蓄虛擬條件句,應該注意有時假設的情況并不以條件從句形式表示出來，而是通過一個介詞短語或其他方式表示。常用的詞或短語有：without, but for, but that, otherwise, or, but等。,例如： Without your help ( = If you had not helped us), we could not have succeeded 要是沒有你的幫助,我們是不會成功的。,He felt very tired yesterday, or he would have attended the party 他昨天很累, 不然他就參加那個聚會了。,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. 翻譯 是一位名叫查爾斯奎林的科學家把1957至1997年期間大氣層中二氧化碳的含量作了精確的統(tǒng)計。 點撥 該句是一個it was . who強調(diào)句。a scientist called Charles Keeling是被強調(diào)部分，其中called Charles Keeling為過去分詞短語作后置定語，修飾a scientist。,7. result in 導致, 造成 =lead to,The accident resulted in three people being killed. 這一事故導致了三人死亡。,The accident resulted in his death.,8. On the other hand, there are those, like George Hambley, who are opposed to this view and believe that we should not worry about high levels of carbon dioxide in the air. 翻譯 在另一方面, 還有一些人，對這一觀點持反對態(tài)度，像科學家喬治漢布利，他們認為我們不必擔心空氣中高含量的二氧化碳。,點撥 該句是一個主從復合句。主句為there are those，like scientist George Hambley作句子的插入語，who引導的定語從句修飾those,動詞believe又帶有以that引導的賓語從句。,on the other hand 另一方面 on the one hand, on the other hand 一方面 ，另一方面,I want to play basketball, but on the other hand, I have to study English in the classroom. 我想打籃球，但另一方面，我不得不在教室里學習英語。,9. consequence,in consequence 因此 as a consequence 結(jié)果 as a consequence of 由于的結(jié)果,10. range,in /within range 在射程之內(nèi) out of / beyond range 在射程之外,11. build up,Sediment (沉淀物)builds up on the ocean floor. This built up my hope after the interview.,累積, 收集,增加, 支持, 樹立,12. even if /though: used to emphasize that, although something may happen or may be true, it will not change a situation 即使，甚至 I wouldnt let it out to you even if you were my friend.,Even if she survives, shell never fully recover. Even though hes 30 now, hes still like a little child.,I. 根據(jù)下列各句句意及所給單詞的首字母或漢語提示，寫出各單詞的正確形式。 1. A large q_ of rice is badly needed here. 2. Students are from a wide r_ of backgrounds. 3. She studied hard, and in c_ she passed the exam. 4. The park attracts 4 million visitors p_ year.,quantity,range,consequence,per,練習,5. What sort of _ (燃料) do these machines need? 6. The _ (數(shù)據(jù)) is still being analysed. So dont be so worried. 7. The earthquake was a terrible _ (大災難). 8. A rainbow is a natural _ (現(xiàn)象) especially after a heavy rain. 10. The _ (曲線圖) of export indicates a new success of the company.,graph,fuel,data,catastrophe ktstrf,phenomenon,II. 根據(jù)句意, 選擇適當?shù)膯卧~或短語填空 1. climate; weather a. Its very difficult for her to get used to the dry and cold _ there. b. How we wish the sunny _ could keep up for another several days! 2. come about; come across a. Ive never _ anyone quite like her before. b. Please tell me how the accident _. I am still in the dark.,climate,weather,come across,came about,3. quantity; quality a. Much of the land was of poor _. b. Buy vegetables in small _, for your immediate use. 4. result in; result from a. The accident _ the death of three people. b. His failure _ not working hard enough.,quality,quantities,resulted in,resulted from,5. Glance(一瞥); glare (凝視,瞪眼); stare(盯著) a. He _ angrily at her across the dinner table. b. She _ at the page for several minutes, trying to understand. c. She _ round the room before she left.,glared,stared,glanced,III. 每空一詞, 使兩個句子的意思相同。 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