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英语专四语法总结时态、语态卧龙雪痕.doc

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文档介绍:英语专四语法总结时态、语态卧龙雪痕
英语专四语法总结时态、语态卧龙雪痕
英语专四语法总结时态、语态卧龙雪痕
英语专四语法总结:时态、语态【卧龙雪痕整理】【南阳师范学院外国语学院】
英语专四语法总结—-时态、语态
:
(1)在时间、条件、让步从句中,一般现在时代替将来时,但要注意区别从句的类型,如:
I’ll tell him when you will ring again. (宾语从句) 比较:I’ll tell him when you ring again. (状语从句)
(2)在make sure, make certain, see (to it) 后的that从句中,谓语动词用一般现在时代替将来时,如:
See to it that you include in the paper whatever questions they didn’t know the answer to last time。
(include 不能用will include或其他形式)
,注意与完成时连用的句型和时间状语:
(1)by/between/up to/till +过去时间、since、by the time/when +表示过去发生情况的从句,:We had just had our breakfast when an old man came to the door.
Between 1897 and 1919 at least 29 motion pictures in which artificial beings were portrayed had been produced。
(表示1919年时已发生的情况)
英语专四语法总结时态、语态卧龙雪痕
英语专四语法总结时态、语态卧龙雪痕
英语专四语法总结时态、语态卧龙雪痕
(2)by +将来时间、by the time/ when +谓语动词是一般现在时的从句,主句用将来完成时。如:
By the time you arrive in London, we will have stayed in Europe for two weeks.
I hope her health will have improved greatly by the time we come back next year.
(3)by now、since +过去时间、in/during/for/over/the past/last few(或具体数字)years/days/months,主句用现在完成时, 但在it is +具体时间since/before这一句型中,:
The changes that had taken place in air travel during the last sixty years would have seemed completely impossible to even the most brillian