be to do sth.和will do sth.和be about to do sth.有什么不同?
题目
be to do sth.和will do sth.和be about to do sth.有什么不同?
答案
be to do表示一种命中注定会发生的事情
will do 表示一种个人意愿(将会做某事,这个主要和be going to do区分)
be about to do表示即将、马上、眼瞅着要做某事
例句:
1.Two boys were saying goodbye to each other without knowing they were not to meet again.
2.I'll go to London.
3.The telephone rang when I was about to go out.
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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