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2019年高考英语复习:从属连词专项复习(3)

2018-12-21 16:14

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以下是上海新东方优能中学频道为大家分享的2019上海高考英语知识点:2019年高考英语复习 从属连词专项复习(3)


  从属连词的多义性

  1、when

  (1)表示时间,意思是"当…的时候"。

  The fire was put out when they came.他们来到的时候,大火已经被扑灭了。

  When I came home my wife was cooking dinner. 我回家时,妻子在做晚饭。

  (2)表示条件,意思是"如果,要是"。

  When the weather is good,I usually go to the country. 如果天气好的话,我通常到乡下去。

  Turn off the switch when anything goes wrong with the machine.

  如果机器发生故障, 就把电门关上。

  (3)表示原因,意思是"既然"。

  I can't tell you when you won't listen. 既然你不想听,我就不告诉你了。

  How can he succeed when he won't work? 既然他不肯工作,那么他怎么会成功呢?

  Why do we take the flag down at night,when we just have to put it up again in the morning?

  既然我们早上还得把旗升上去,那晚上又为什么要把它降下来呢?

  Why do you want a new job when you've got such a good one already?

  既然你有这么好的一份工作为什么你还想找新工作?

  It was an exciting moment for these football fan this year, when for the first time in years their team won the World Cup.

  这是球迷们本年度最兴奋的时刻,因为他们的球队这些年以来第一次赢得世界杯。

  (4)表示让步,意思是"虽然,然而,可是"。

  He walks when he might ride. 他虽然可以坐车,可是他还是步行了。

  We have only three chairs when we need five. 我们需要五把椅子,可是我们只有三把。

  2、while

  (l)表示时间,意思是"当…的时候","和…同时"。

  We waited while he dined. 他吃饭时,我们等着。

  Please be quiet while I am talking to you. 在我跟你说话的时候,请安静。

  (2)表示让步,意思是"虽然,尽管"。

  While I understand what you say,I can't agree with you.

  虽然你说的我懂,可是我还是不能同意。

  While he is respected,he is not liked. 他虽受人尊敬,但并不被人喜爱。

  (3)表示对比,意思是"而,然而"。

  She is very diligent,while he is very lazy. 她很勤奋,而他却很懒。

  You like sports,while I'd rather read. 你爱运动,而我爱看书。

  3、as

  (1)表示时间,意思是"当的时候,随着"。

  I met John as I was coming home。我回家途中遇到约翰。

  As a young man,he joined the army. 他在年轻时就参了军。

  (2)表示原因,意思是"由于,因为"。

  As he was not well,I decided to go without him. 因为他身体不好,我决定独自去了。

  She stayed at home as she had no car.  她因没有汽车而留在家里。

  (3)表示比较,意思是"像一样"。

  I'm as tall as you (are). 我和你-样高。

  The work is not so easy as you imagine. 这工作不像你想象的那么简单。

  (4)表示方式,意思是"按照,如同"。

  Do as I do.我怎么干,你就怎么干。

  I have told the story just as it happened. 我已如实地讲了这一情况。

  (5)表示让步。意思是"虽然,尽管"。注意,as引导状语从句表示让步时,一定要用倒装语序。

  Sick as he was,he came to work. 他虽然有病,还是来上班了。

  Child as he is,he knows a lot. 尽管他是个孩子,懂的却很多。

  Much as I like it,I wiIl not buy it. 虽然我很喜欢这个东西,但不想买它。

  4、if

  (1)表示条件或假设,意思是"如果,假如"。

  We'll stay at home if it rains tomorrow. 如果明天下雨,我们就呆在家里。

  If I were you,I wouldn't go. 假如我是你,我就不去。

  (2)表示让步,意思是"虽然,即使"。

  I will go if I die for it. 即使是死我也要去。

  If I am wrong,you come wrong, too. 即使我错了,你也是错。

  (3)表示时间,意思是"无论何时,当",相当于whenever。

  If I don't understand what he says, I always ask him. 我不懂他说的话时,我总问他。

  If winter comes,can spring be far behind? 冬天来了,春天还会远吗?

  (4)表示原因,意思是"既然"。

  If you don't like the job,why don't you change it? 既然你不喜欢这个工作,为什么不换换呢?

  (5)用来引出一个表达愿望的感叹句,表达一个愿望

  If they had only come earlier! 如果他们早来一步该多好啊!

  If I haven't lost my watch! 我的表要是不丢该多好!

  If I only knew! 要是我知道该多好。

  5、as long as,so long as

  (1)表示时间,意思是"达之久"。

  You can keep the book as long as you like。这本书你爱看多久就看多久。

  During the holidays,I like to stay in the countryside as long as I can.

  假日里,我喜欢呆在乡下,能果多久就呆多久。

  (2)表示条件,意思是"只要"。例如:

  As long as you tell the truth,I'll try to help you.  只要你告诉我实情,我会尽力帮助你。

  You may take this book away so long as you return it on time.

  只要你按时归还,就可以把这本书拿走。

  (3)表示原因,意思是"既然,由于,因为"。

  So long as the weather is changeable these days,we'd better get in wheat in time.

  由于这几天气候变化无常,我们最好及时把麦收割完。

  So long as you are going to town, you can do something for me.

  既然你明天要进城,你就帮我办点事。

  6、since

  (1)表示时间,意思是"自从以来"。

  I haven't heard from him since he left.  自从他离开后,我就没有得到他的消息。

  It is ten years since he joined the army.  他参军已经有十年了。

  (2)表示原因,意思是"既然"。

  Since this method doesn't work,let's try another. 既然这种方法不行,我们就试用另一种吧。

  Since you ask, I will tell you. 你既然问,我就告诉你。

  7、so that

  (1)表示目的,意思是"以便,为了"。

  They started off early so that they could get there in time.他们早早动身以便及时到达那里。

  The student worked hard so that he might learn more.这个学生努力学习,以便学到更多的知识。

  (2)表示结果,意思是"因此,结果是"。

  I went to the lecture early so that I got a good seat.我很早就去听课,结果占到了一个好座位。

  He spoke clearly,so that everyone heard.  他说话清楚,因此每个人都能听见。

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