He was about to make a call to Tom _____ Tom patted me on the shoulder.A.asB.unt

He was about to make a call to Tom _____ Tom patted me on the shoulder.A.asB.unt

题型:不详难度:来源:
He was about to make a call to Tom _____ Tom patted me on the shoulder.
A.asB.untilC.whileD.when

答案
D
解析

试题分析:考查连词,A. as当…时候B. until直到…C. while当…时候D. when当…时候,句子意思“当汤姆拍我的肩膀的时候他将要给汤姆打电话”,所以选D,when所引导的从句,其谓语动词即可是持续动词,也可是短暂动词;谓语动词动作发生的时间可以与主句谓语动词的动作是同时、或之前、之后;while句中的谓语动词是持续动词,不用短暂动词,位于动作发生的时间通常与主句谓语动词动作发生时间是同时;as侧重指从句的动作与主句的动作同时进行,谓语动词可以是持续性动词,也可以是短暂性动词
点评:连词是高考常考内容,本题不同的词意思相同,但是它们有区别,要求考生掌握它们的区别
即学即练:We need some more facts and figures __________ we take the final decision.
A. since           B. before            C. after            D. until
选B
举一反三
Mountain climbing ________ be very tiring, and many people feel sick ________ the atmosphere gets thinner.
A.may; whileB.can; asC.must; thoughD.should; for

题型:不详难度:| 查看答案
Please take down my telephone number ________ something important happens.
A.in caseB.now thatC.even thoughD.as if

题型:不详难度:| 查看答案
Colin was about to get off the camel ________ a child ran towards him.
A.whileB.whenC.asD.since

题型:不详难度:| 查看答案
_____________ bad-tempered at times, he is still respected by all the students.
A.In spite ofB.Even ifC.Not untilD.Despite

题型:不详难度:| 查看答案
________we went to visit Professor Smith, he________his research work.
A.The first time; devoted toB.Whenever; was concentrate on
C.For the first time; was busy withD.Each time; was absorbed in

题型:不详难度:| 查看答案
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