高中英語 Unit 4 Global Warming 重點難點及考點解析學案 新人教版選修6

1、 unit 4 global warming學案2重點、難點及考點解析一、重點單詞1compare1vt. 比較；對照。如： compare your answers with those at the back of the book to see if they are right. 把你的答案同書后面的答案對照一下，看看是否正確。 my handwriting can not be compared with my fathers. 我的書法不能與我父親的相比。 2vt. 喻為；比擬。如： mans life is often compared do a candle.人生常被比為蠟燭。

2、 shakespeare compared the world to a stage.莎士比亞把人世比做舞臺。 comparewith表示“把與相比（同類相比）” compareto 表示“把比做（異類相比，比喻）” compared to /with 與相比, 只能作狀語2amount n. 數(shù)量 習慣用語：an amount of 相當數(shù)量的; 一些 修飾不可數(shù)名詞amounts of 相當數(shù)量的; 一些 修飾不可數(shù)名詞large amounts of money 大量的金錢3concern v.使擔心；使關心；使煩惱  the boy's poor performanc

3、e at school concerned his parents. 這個男孩在學校很差的表現(xiàn)，使他父母很擔心。   注意：其過去分詞concerned通常作形容詞用，意為“擔心的；煩惱的；憂慮的”。 the concerned parents were all concerned for the children's safety. 憂心忡忡的家長們都為孩子們的安全擔憂。 涉及；與有關或相關attend to what concerns you. 注意與你有關的事物。注意：其過去分詞concerned常用來作表語，意為“和有關；牽涉”；而作定語，則意為“有關的”。

4、 it is reported that the pop singer is concerned with selling drug.據(jù)報道，那個流行歌手涉嫌販毒。 he asked all concerned to take an active part in helping the girl. 他要求所有相關的人積極幫助那個女孩。 、concern作名詞 1. 有關的事（可數(shù)）  that's my concern, so i'll do as i like about it. 那是我的事，因此，我想怎么做就怎么做。 1 關懷；關心（不可數(shù)） some peopl

5、e don't show much concern for our environment. 有些人不太關心我們的環(huán)境。3擔心；擔憂 she showed great concern about you.她很為你擔心。4. rangerange v.排列, 使成行；偏袒，站在的方面。 n. ：范圍(尤指從到各種種類,可供選擇的范圍等，可加不定冠詞) ；排列 beyond the range of 超越的范圍out of ones range 某人達不到的這家商店商品品種多。the shop keeps a wide range of goods.v.排列, 使成行；偏袒，站在的方面。主

6、要搭配為：+名詞/代詞；+介詞+名詞/代詞；?？捎糜? 1. 被動結(jié)構 2. range oneself； 3. range from to / betweenand 從到不等。老師令其學生沿著小徑排隊。the teacher _along the path.溫度在15度到35度之間。the temperature_.我們應當列身于法律與秩序的一邊。we should _ on the side of law and order.keys：ranged his students；ranges from 15 to 35 degrees；range ourselves二、重點短語1 come a

7、bout come about 發(fā)生，造成 相當于happenwhen mother woke up, she didnt know what had come about. ill never understand how it came about that you were late three times a week. do you know how the air accident came about? 2keep on 繼續(xù) +doing sth.他們雖然很累了，還是繼續(xù)工作。they keep on working although they are tired.3build

8、 up逐步建立，增加，增進build up ones fortunebuild up ones strengthbuild up the businessthis built up my hope after the interview.sediment (沉淀物)builds up on the ocean floor.4make a difference make a difference(1)有很大差別, 有很大不同(2)有很大的關系/影響make some/ no difference to對.有些/沒有關系that makes no difference to me.那對我沒有影響。

9、exercise can make a great difference to your health.鍛煉對你的健康產(chǎn)生很大的影響。5. put up with put up with 忍受;忍耐;受苦that woman, as a housewife, has a lot to put up with. 作為家庭主婦,那女人得忍受很多煩惱。知識拓展put aside 節(jié)省(錢、時間);儲蓄;把放在一邊 put away 收拾起來;儲存(錢);喝掉 put back 放回原處;拖延 put down 寫下;記下;控制 put forward 提出(意見、建議);推薦 put off 延期;

10、推遲 put on 假裝;增加;上演(戲劇) put out 熄滅;使憂慮;撲滅;出版put up 舉起;張開(傘);張貼;為提供食宿 6. so long as / as long asas long as 只要，如果as long as there is life there is hope. 留得生命在,不怕沒希望. you can go out, as / so long as you promise to be back before 11 o'clock. 你可以出去,只要你答應在11點以前回來. i'll accept any job as / so long a

11、s i don't have to get up early. 只要不必早起,任何工作我都可以接受. 在用as / so long as連接的從句中,當其謂語為be,而主語和主句的主語相同時,則從句的主語和be可以省略。如: i'm sure we are safe as long as (we are) in his care. 我深信只要在他的保護下,我們就會平安無事. 三、重點句型1what do you think green house gases do?本句中think后接了一個由what引導的賓語從句。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 th

12、ink, 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：正 who do you think will win in the game?誤 do you think who 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 we can't cut down the big tree?正 do you know why we can't cut down the big tree?2there is no

13、 doubt that.一、作不可數(shù)名詞,作"疑惑;懷疑”肯定句中doubt多接whether (一般不用if代替) 同位語從句。如: there's some doubt whether he'll keep his promise. 他會不會信守諾言還難說。 she had her doubts whether the new book would sell well. 她懷疑新書是否會暢銷。否定句中doubt多接that同位語從句。如: there is no doubt that they will ask you for help. 毫無疑問,他們會請你幫忙

14、的。 i have no doubt that you will succeed. 我毫不懷疑你會成功的。 二、作及物動詞常用于下列句型中,作"懷疑;不能肯定;不大相信"解,一般不用進行時態(tài)。用于否定句或疑問句,后接that引導的賓語從句。如: i don't doubt that he is telling the truth. 我毫不懷疑他在講真話。 do you doubt that he will win the match? 你懷疑他會贏這場比賽嗎? 用于肯定句,一般接whether 或if引導的賓語從句.如: i doubt whether we wil

15、l make a profit out of it. 我認為我們不可能從此事中獲利。 we doubt if she will be persuaded. 我們不知道她會不會被說服。 3some byproducts of this process are called “greenhouse” gases, the most important one being carbon dioxide.the most important one being carbon dioxide 是一個獨立主格結(jié)構，由名詞+分詞構成，在句中做補充說明或伴隨的狀況。_(時間允許的話)，i will show

16、you around the city._(今天是星期天)，i dont have to go to work._(沒有人要說的話)，the meeting was closed.keys：time permitting；today being sunday；nobody having any more to say4without the green house effect，the earth would be about thirty-three degrees celsius cooler than it is.這是一個含蓄虛擬條件句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

17、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。 without your help ( = if we had not had your help)，we could not have succeeded要是沒有你的幫助，我們是不會成功的。 四、 疑難辨析 1result in/ result fromresult in 結(jié)果; 致使; 導致主語：起因 in 的賓語：結(jié)果acting before thinking always results in failure.做事不先考慮總會導致失敗。the acci

18、dent resulted in the death of two people.這場意外事故造成兩人死亡。result from 起于, 由于, 由引起，主語： 結(jié)果 from 的賓語：起因his sickness resulted in eating too much. (in / from)2take place, happen, occur, come about和break out用法區(qū)別 這些詞或短語都有“發(fā)生”的意思，但用法各不相同，區(qū)別如下： (1). take place 表示“發(fā)生、舉行、舉辦”，一般指非偶然性事件的“發(fā)生”，即這種事件的發(fā)生一定有某種原因或事先的安排，例如

19、： great changes have taken place in our hometown during the past ten years. the olympic games of 2008 will take place in beijing. (2) .happen作“發(fā)生、碰巧”解，一般用于偶然或突發(fā)性事件，例如： what happened to you? (一般不說：what did you happen?) maybe something unexpected happened. i happened to see him on my way home. = it happened that i saw him on my way home. (3). occur作“發(fā)生、想到、突然想起”解，其意義相當于happen，例如： what has occurred?