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英語時態有哪些特殊的變化形式

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時態是英語中謂語動詞所表示的動作或情況發生時間的各種形式,是各級各類考試的必考內容。下面,我們來學習英語時態的變化形式,大家可以作爲參考。

padding-bottom: 75%;">英語時態有哪些特殊的變化形式

1、在see to it,make sure,make certain,be sure,look out,take care等之後的從句要用一般現在(過去、現在完成)時代替一般將來(過去將來、將來完成)時。

You must make sure the door is closed before you leave the lab. / See to it that everything is OK.

2、既定的時間如生日、日曆、課時安排、交通時刻表等,通常用一般現在時表示將來動作。

The meeting starts at five o'clock. / The train leaves at three this afternoon.

3、在賓語從句中,表示客觀事實或真理,一律用一般現在時。

The teacher taught us yesterday that the moon circles the earth. / Somebody told me that you are a writer.

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4、以Here或There開頭的句子,說明正在發生的動作,謂語動詞不用現在進行時,而用一般現在時。(其實就是倒裝句一種)

Here comes the bus! / There goes the bell!

5.在由as soon as,when,before,after,till等引導的時間狀語從句和由if,unless,as long as,in case等引導的條件狀語從句或在方式、讓步狀語從句中,常用一般現在時代替將來時,但主句用一般將來時。

If you come this afternoon,We'll have a meeting. / When you meet him,tell him to come to my place.

6、若句中帶有always,all the time,forever,constantly等詞或短語,用進行時表示一個頻繁發生的動作,表示說話人讚賞或厭惡等感情。

You are always forgtting the important things. / He is constantly leaving his things behind.

7、某些詞,如come,go,leave,arrive,start等可用現在進行時表示將來。

He is leaving tomorrow. / The visitors are arriving in a few minutes.

8、用表示意願及精神狀態的動詞,反映的是說話者探詢的態度時,動詞用一般過去時表示一般現在時,顯得更加有禮貌。

You must make sure the door is closed before you leave the lab. / See to it that everything is OK.

9、在含有hardly/scarcely…when,no sooner…than結構的句子中,主句用過去完成時,從句用一般過去時。(注意:主句一般倒裝)

Hardly had I entered the room,when I heard a loud noise. / No sooner had he reached the door than he came back.

10、在wish,would rather的賓語從句中和在as if引導的狀語從句中,以及在It is time that…的定語從句中,謂語動詞用一般過去時說明現在的事情。如:

It's time you had a holiday. / He looks as if he were young.

11、表示和交待故事發生的背景情況等等。

One day Jones was walking along the street. / It was snowing as they made their way to the front.

12、與always,forever,constantly,continually,frequently等詞連用,表示過去經常發生的行爲,往往帶有感情色彩。如:

My brother was always losing his key. / They were frequently quarrelling.

其實是英語動詞的時和體。時有現在、過去、將來和過去將來;體有一般、完成、進行和完成進行。而語態有2種,即主動和被動。以上只是主動,加上被動就更多了。

單詞的積累和語法的掌握是學習英語的重中之重,以上就是小編給大家分享的英語語法知識,希望可以給大家在學習過程中帶來幫助。