| 把脉二十组易混连（接）词 |
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作者：谢奎金 文章来源：高考文科版 点击数： 更新时间：2008-5-1 21:01:53  |
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十一、表时间的从属连词when＼while＼as
【例24】-______I’m going to the post office．
-________you’re there，can you get me some stamps?
A．As
B．WhileC．BecauseD．If
【例25】Mother was worried because little Alice was ill，especially________Father was away in France．
A．as
B．thatC．during D．if
【例26】—Where’s that report?
—I brought it to you_______you were in Mr．Black’s office yesterday．
A．ifB．whenC．becauseD．before
【答案与解析】BAB。when＼while＼as用法区别是：主从句动作先后发生用when；两个较长动作同时发生用while，从句谓语动词为延续性动词，还可译作“趁着”;特别强调主从句动作同时发生时用as，译作“一边……一边”，as还可表“随着”。例：
(1)Strike while the iron is hot．
(2)As the day went on，the weather got worse．
十二、表时间的从属连词since＼until＼before
【例27】It is difficult for us to learn a lesson in life______we’ve actually had that lesson．
A．untilB．afterC．sinceD．when
【例28】That was really a splendid evening．It’s years_____I enjoyed myself so much．
A．whenB．thatC．beforeD．since
【答案与解析】AD。since＼until＼before强调的时间不尽相同，since表示“自从……以来”，until表示“直到……止”，before表示“在……之前”；若主句谓语动词为非延续性动词的否定式，使用until和before基本上没有区别。例：He didn’t leave until＼before the rain stopped．
十三、表时间的从属连词before＼after
【例29】 The field research will take Joan and Paul about five months；it will be a long time _____we meet them again．
A．afterB．beforeC．sinceD．when
【答案与解析】B。连词before和after表示时间的差异是：before表“在……之前”，此词在具体语境中有不同含义，可译作“宁愿、不知不觉、要不然、否则”等。尤见于“It will be＼was+时间+before…，”句型中；而after表“在……之后”十四、表示时间的句型It’s+时间+when＼since＼before＼that中连词
【例30】-Did Jack come early last night?
-Yes．It was not yet eight o’clock_____he arrived home．
A．beforeB．whenC．thatD．until
【例31】 It wasn’t until nearly a month later_____I received the manager’s reply．
A．sinceB．whenC．asD．that
【答案与解析】BD。例30题考查从属连词，涉及句式结构“It’s…when”从句的用法。when常接在时间名词之后。句意：他到家时还不到八点。注意句型It’s+时间+when＼since＼before＼that中连词的选择。若将it、 be动词和连接词删除，整个句子句意完整，那么此句为强调句，否则为时间状语从句或名词性从句。
十五、关联连词no sooner…than…＼hardly…when…
【例32】-Did Linda see the traffic accident?
-No，no sooner_____than it happened．
A．had she goneB．she had gone
C．has she goneD．she has gone
【答案与解析】A。no sooner…than…和hardly…when…相当于as soon as之意，从句谓语动词用一般过去时，主句谓语动词用过去完成时。置于句首时，主句的谓语要部分倒装。例：
Hardly had he got into the room when the telephone rang．
十六、引导让步状语从句的连接词however＼no matter how
【例33】This is a very interesting book．I’ll buy it，_____.
A．how much may it cost
B．it may cost
C．however much it may cost
D．how may it cost
【答案与解析】C。however＼no matter how的区别是：前者可引导名词性从句和让步状语从句，而后者只能引导状语从句。另外，however还可用作连接副词，与标点符号连用，表示然而。
例：“Maybe I should drop out,” I thought as I moved on．However,I decided to keep going．
十七、连接词even if＼as if
【例34】Allow children the space to voice their opinions，_____they are different from your own．
A．untilB．even if
C．unlessD．as though
【答案与解析】B。even if与as if只是形似，意义上差别很大。前者引导让步状语从句，用法同even though;后者引导方式状语从句，表“似乎”。例：
Elize remember everything exactly as if it happened yesterday．
十八、引导名词性从句连接词what＼that
【例35】There is much chance_____Bill will recover from his injury in time for the race．
A．that
B．which
C．until
D．if
【例36】_____matters most in learning English is enough practice．
A．WhatB．WhyC．WhereD．Which
【答案与解析】AA。what与that区别是：前者担任句子成分，有一定意义;后者不担任句子成分，无具体意义，只起连接作用，宾语从句中常省略，其他从句中不可省略。
十九、引导定语从句的when＼since when
【例37】The book was written in 1946，_____the education system has witnessed great changes．
A．whenB．during which
C．since thenD．since when
【答案与解析】D。前后句用逗号隔开，为主从关系，排除选项C；从定语从句时态上考虑，只有since常与完成时连用，故排除选项A和B。when除用作关系副词引导定语从句外，还可用作代词，和介词since＼by等连用，可引起疑问句或定语从句。又如：Since when has the country been open to international trade?
二十、引导名词性从句连接词what＼which
【例38】There are so many kinds of tape recorders on sale that I can’t make up my mind_____to buy．
A．whatB．whichC．howD．where
【例39】It is none of your business_____other people think about you．Believe yourself.
A．howB．whatC．whichD．when
【答案与解析】BB。what与which共同点是均可指“什么”，担任句子成分，起连接作用；不同点是：what指不定范围的“什么”，而which指一定范围内的“什么”，常译作“哪一个”。，与before相反。 上一页 [1] [2]
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