Question

英语语法题

Mrs. White became a teacher in 1985. She
___D___ for twenty years by next summer.
A. will teach
B. would have taught
C. has been teaching
D. will have been teaching
如果有will have taught 是不是也能选?

Answer 1

D 正确

will have been teaching 是将来完成进行时，意思是“到明年夏天就教了二十年了，而且她会继续教下去”。

will have taught 是将来完成时，意思是“到明年夏天就教了二十年了，然后她就去做别的了”。

例如：

David will have had his exam by then， so he’ll be able to enjoy himself．

到那时大卫就考完试了，这样他就能够玩得痛快。（不再继续考试了）

Answer 2

正解

Answer 3

不行 因为是for twenty years ,所以一定要是持续状态have been teaching,不能是瞬时动作 taught

Answer 4

D选项是将来完成进行时，表示在将来的那个时刻她仍在当老师；二你提供的这个答案呢，是将来完成时，更着重于强调将来的那个时间点她已经结束了教师这一职业生涯。所以，在题目中没有明确说明的时候，还是用完成进行时更保险一些。。。