文档介绍：动词的时态
一般现在时:
由when、as soon as、the minute、the moment、till、until等引起的时间状语从句,以及由if、unless、provided that等引起的条件状语从句常常用一般现在时态表示将来的动作,而主句则用一般将来时态。
例:They will go home for winter vacation as soon as they finish their exams.
(20131122) If it rains tomorrow, the basketball match has to be canceled.
(20130584) I will call you as soon as I arrive.
(20111184)I will tell him as soon as es back.
(20130551)When es back, I am going to tell him everything.
(20122241)He will write to me as soon as he returns home.
(20120516) Please give Jim the schedule for tomorrow’s conference when es back.
当表示普遍的真理或者众所周知的客观事实,常常用一般现在时态。例:The earth is 。
一般过去时:
区分三个短语的用法:
used to do sth:过去常常做某事。
be/get used to doing sth:习惯做某事。
be used to do sth:被用于做某事。
一般将来时:
be to+动词原形:表示安排或计划好了的动作。例:The Third-Ring Road is to be open to traffic before National Day.
(20121117)Mr. Obama will give a speech at the meeting to be held next week.
be about to+动词原形:表示即将发生的动作。例:The lecture is about to 。
一些表示动作趋势,如开始、终结,以及一些表示动作方向,如往来的动词,常常用现在进行时态表示按照安排将于将来发生的事情,这类动词常见的有如:start, go, leave, come, arrive等。例:We are leaving for Beijing 。
进行时态:
重点区分when和while引起的时间状语的用法。
When表示时间上的点,在考试中其引导的时间状语从句多翻译为“这时…”,主句多用一般现在时或一般过去时;while 表示时间段,引导的时间状语从句多翻译为“正当…时”,该从句用进行时态。
例:One of the guards was sleeping when the general came in.
I fell and hurt myself while I was playing tennis.
现在完成时:Has / have done
重点区分have (has) been to:某人去过某地,表示一种经历,强调状态,可以和once, twice, often, never, ever连用;
Have (has) gone to:某人在去某地的途中或已在某地,还没回来,强调动作。此句型不能与上述时间状语连用。例:
He has gone to 。
He has been to America 。
六、过去完成时:
1、强调一个动作发生在另外一个过去的动作之前时,用过去完成时。
2、It was the first/second/last time that…,在该句型,that从句用过去完成时态。
七、将来完成时:
常常标志性地由by、by the time、by the end of引起一个表示将来时间段的时间状语,主句用将来完成时态。
感官动词、使役动词的用法及英语中常考的两个句式结构
一、感官动词的用法及其被动语态:在英语中,常见的感官动词有“五看二听一感觉”(see、watch、look、notice、observe;hear、listen to;feel),在主动语态中用动词原形或现在分词作宾补,如see sb do/doing sth,改为被动语态时则要加to,如sb be seen to do