One can’t do extreme sports _________ he or she has had some training.A.ifB.unle

One can’t do extreme sports _________ he or she has had some training.A.ifB.unle

题型:不详难度:来源:
One can’t do extreme sports _________ he or she has had some training.
A.ifB.unlessC.onceD.since

答案
B
解析

试题分析:句意:一个人不能做极限运动,除非他或她进行过一些培训。If如果; unless除非; once一旦; since自从,因为。根据句意故选B。
点评:本题难度适中。连词是近几年高考常考的语法项目,主要考查的是它们的用法及意义,还需正确理解句意及正确分析句子的成分才能做出正确的判断。这里考生容易误选A。
即学即练:All the dishes in this menu,_________ otherwise stated, will serve two to three people.
A. as        B. if      C. though       D. unless
解析:D。句意:考查连词的用法。句意为:除非有特别的说明,要不然这个菜单上的所有的菜只供两到三个人食用。unless表示“如果不……,除非……”,符合句意。
举一反三
_____ the government recovers the vehicle purchase tax and the oil prices go up continuously, the sales of the vehicle in China are still increasing every year.
A.WhenB.OnceC.SinceD.While

题型:不详难度:| 查看答案
Some people waste a lot of food ____ others haven"t enough to eat.
A.onceB.whenC.asD.while

题型:不详难度:| 查看答案
_____ private cars bring us convenience,  they also cause more traffic accidents and pollution.
A.WhileB.AsC.IfD.Since

题型:不详难度:| 查看答案
He came to the meeting _____________his serious illness.
A.inspiteB.evenifC.asaresultofD.despite

题型:不详难度:| 查看答案
Much as he liked the book,____he didn’t have enough money to buy it.
A.butB.andC.thereforeD./

题型:不详难度:| 查看答案
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