—Taking in less fat and salt and doing more exercise must be a reliable method of keeping
题目
—Taking in less fat and salt and doing more exercise must be a reliable method of keeping
7.—Taking in less fat and salt and doing more exercise must be a reliable method of keeping fit,_____?
—Of course.Why not try it?
A.mustn’t theyx05x05x05B.mustn’t itx05x05x05C.aren’t theyx05x05x05D.isn’t it
不是两个动作吗?用they
6.—European scientists announced that the speed of light isn’t the speed limit.
—Perhaps it is the biggest challenge to Einstein’s Theory of Relativity.No one _____ any crack in his theory for more than a century.
A.has foundx05x05x05B.foundx05x05x05x05C.had foundx05D.would find
为什么不选A.has foundx05
4.—Why didn’t you join in the final of talent shows?
—I _____ ,but I was kicked out of the first round.
A.would like tox05x05x05B.wished tox05x05x05C.wouldx05 D.was to have
答案
第7题,虽然是两个动作但它整体上属于现在分词短语作主语,而在语法上讲现在分词短语作主语,谓语动词和相应代词用单数;并且本题反义疑问时已经用了it
第6不能用has found,本题其实旨在考查对英语各种时态的用法的掌握,现在完成时表示过去发生的动作对现在造成的影响或结果,后面一般跟表示段时间的短语,像for+时间段等;而过去完成时则表示过去发生的动作造成的影响或结果,只与过去有关,与现在无关,而题目中有了上面的欧洲怎么.可以推测,问题想问的是在这之前,而欧洲科学家宣布即为过去,故此题时态为过去的过去,故选c;
第4为一般口语类知识,在于平时多读多看多记.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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