3.--- ____ the sports meet might be put off. --- Yes,it all depends on the weather.
题目
3.--- ____ the sports meet might be put off. --- Yes,it all depends on the weather.
A. I've been told B. I've told C. I'm told D. I told,但是想问下为什么不选C?
还有
4.I need one more stamp before my collection ___.
A.has completed B.completes C.has been completed D.is completed答案选D,为什么不选C?
5.Rainforests ___ and burned at such a speed that they will disappear from the earth in the near future.
A.cut B.are cut C.are being cut D.had been cut答案选C,而不选B?
答案
3.A 如果使用 I'm told 也应该是 I was told ,因为是发生过的事,用现在完成时还可以强调影响.
4.主句是一般现在时,从句一般也采用一般现在时.
5.C 表示正在进行,意义:雨林照这样的速度被砍伐下去很快就会从地球上消失.
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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