问题 选择题

This August will be very precious for graduates by which time they _________into a university.

A.will be admitted

B.will have admitted

C.have been admitted

D.will have been admitted

答案

答案:D

题目分析:考查时态及语态的用法。主句中will是表示将来时,在从句中有by which time可以看出从句谓语动词应该用将来完成时,又因为they与admit之间是被动关系故选D;将来完成时表示将来某个时间之前已经完成的动作,常与by+将来的时间;这里指八月以前学生已经被大学录取了。一般将来时指将要发生的动作与将来的时间状语连用。

点评:本题难。命题者在于考查学生的将来完成时与一般将来时的区别,学生误选A,认为是将来时而忽略了by which time的这个时间状语。

即学即练:Pick me up at 8 o'clock,I  __________ breakfast by then.

A. will have            B. will have had   C. have             D. have had

解析:B句意:早上8点钟你来接我,到时我已经吃完早饭了。

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