选修八 4.2Unit 4　Language Points.ppt

新课标人教版课件系列《高中英语》选修选修( (模块）模块）8-8-4.2Language points1．．What 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，表疑问的等时，表疑问的词要放在主句前即句首词要放在主句前即句首•例如：例如： [正正] Who do you 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 can't cut down the big tree? [正正] Do you know why we can't cut down the big tree?2. comparecompare to/ withCompared to/with many women, she was indeed very pare A with BIf you compare her work with his, you will find hers is much pare A to BPoets have compared sleep to death.3. come about come about: take place; happen 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4. There is no doubt that…. There is some doubt whether…. 辨析：主句为肯定句时，辨析：主句为肯定句时，doubt 后后 使用连词使用连词whether。

主句为否定句主句为否定句 时，时，doubt后则使用连词后则使用连词that eg:There's no doubt that one day a cure will be found. There is little doubt that he was the killer.5. amount of习惯用语：习惯用语： an amount 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); 大大量量(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6．．Without the ‘green house effect’，，the earth would 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  例如：例如： Without your help ( = If 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  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7. result in 导致导致, 造成造成 =lead to The accident resulted in three people being killed. 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.result from ●result from 由由…产生，发生产生，发生 injuries resulting from a fall. The accident ______ the death of two passengers. A. resulted from B. resulted in C. resulted of D. resulted with8. on the 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 • I'd 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 to be studying. 我想去参加聚会，但从另一方面我想去参加聚会，但从另一方面来说，我应该留下来学习。

来说，我应该留下来学习9. concern n. a matter that relates to or affects one 有厉害关系；所关切的事有厉害关系；所关切的事 It’s no concern of mine. 这事与我无关这事与我无关n. worry, anxiety 担心；担忧担心；担忧 She showed great concern about you. 她很为你担心她很为你担心v.to have to do with or relate to 涉及；与涉及；与……有关或相关有关或相关 Attend to what concerns you. 注意与你有关的事物注意与你有关的事物v. To be of interest or importance to (常与常与with, about, in 连用连用) 关心；关照关心；关照 We’re rather concerned about father’s health. 我们相当担心父亲的健康。

我们相当担心父亲的健康10. 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11. 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12. build up•Build up the business•Sediment (沉淀物沉淀物)builds up on the ocean 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13. even if /though: used to emphasize that, although something may happen or may be true, it will not change a situation•I wouldn't tell you even if I knew. •Even if she survives, she'll never fully recover.•Even though he's 24 now, he's still like a little child.•I can still remember, even though it was so long ago.。