We need some more facts and figures __________ we take the final decision.A.sinc

We need some more facts and figures __________ we take the final decision.A.sinc

题型:不详难度:来源:
We need some more facts and figures __________ we take the final decision.
A.sinceB.beforeC.afterD.until

答案
B
解析

试题分析:考查连词的用法,A. since自从;B. before在…之前;before主要引导时间状语从句,意为“先于”“…之后才”“(不多久)就…”。当主句是将来时时,从句谓语动词须用现在时;当主句是一般过去时或过去完成时时,从句常用过去时。before引导的时间状语从句不能用于否定式。C. after在…之后;D. until直到…,句子意思“在我们做最后决定之前我们需要一些证据和数据”
点评:连词是高考常考内容,判断从句中用哪个连词,需用记住连词的用法,在句中的作用,需要考生平时多练习。
即学即练:We hadn’t been out for long _________ she felt sick.
A. as      B. while      C. after         D. before
选D   句意:我们还没出去多久她就生病了。
举一反三
—Do you have anything to say for yourselves?
—Yes, there is one point _________ we must insist on.
A.whyB.whereC.how D./

题型:不详难度:| 查看答案
Qian Xuesen tried many times _________ he found the solution to the puzzle about space technology.
A.afterB.beforeC.sinceD.when

题型:不详难度:| 查看答案
Physical Education in schools can teach us endurance — something we all need ______ life becomes tough.
A.unlessB.in caseC.thoughD.until

题型:不详难度:| 查看答案
He thought she was a pretty girl     poorly she was dressed.
A.howB.as thoughC.as long asD.however

题型:不详难度:| 查看答案
______ time went by , Herbert could finish all the maths  exercises in class.
A.WithB.AsC.whileD.Since

题型:不详难度:| 查看答案
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