久久国产成人av_抖音国产毛片_a片网站免费观看_A片无码播放手机在线观看,色五月在线观看,亚洲精品m在线观看,女人自慰的免费网址,悠悠在线观看精品视频,一级日本片免费的,亚洲精品久,国产精品成人久久久久久久

分享

英語語法知識難點--動詞時態(tài),、語態(tài)(四)

 蘭黛公主 2011-09-18
 

英語語法知識難點--動詞時態(tài),、語態(tài)(四)

I. 要點
 1、 一般現(xiàn)在時
?。?) 表示經(jīng)常發(fā)生的動作或現(xiàn)在存在的狀態(tài),,常與sometimes, always, often, every day等時間狀語連用。如:
 Sometimes, we go swimming after school.
?。?) 表示客觀真理,、科學(xué)事實等。如:
 The earth goes round the sun.
 2,、 現(xiàn)在進(jìn)行時
 (1) 表示說話時或現(xiàn)階段正在進(jìn)行的動作,,常與now, at present等時間狀語連用。如:
 What are you doing now?
 (2) 和always, continually等連用,,表一種經(jīng)常反復(fù)的動作,,常含有某種情感。如:
 He is always doing good deeds.
 3,、 現(xiàn)在完成時
 主要表示動作發(fā)生在過去,,對現(xiàn)在仍有影響,或動作一直延續(xù)到現(xiàn)在,,或可能還要繼續(xù)下去,,常與just, already, so far, once, never 等詞連用。如:
 Have you ever been to Beijing?
 4,、一般將來時
 表示將來某一時間要發(fā)生的動作或存在的狀態(tài),常與tomorrow, next year等連用,。如:
 I'll meet you at the school gate tomorrow morning.
 We're going to see a film next Monday.
 5,、一般過去時
 表示在過去某一時間或某一階段內(nèi)發(fā)生的動作或存在的狀態(tài),常與yesterday, last year, in 1998, a moment ago等詞連用,。如:
 It happened many years ago.
 6,、過去進(jìn)行時
 表示過去某一時刻或某一時期正在發(fā)生的動作。如:
 What were you doing this time yesterday?
 7,、 過去完成時
 表示在過去某一時間或動作之前已經(jīng)發(fā)生或完成了的動作,。如:
 The train had already left before we arrived.
 8、一般過去將來時
 表示說話人從過去的角度來看將來發(fā)生的動作,。如:
 He said he would come, but he didn't.
?。埂⒈粍诱Z態(tài)
 被動語態(tài)的時態(tài),,以give為例,。


時/式

一般

進(jìn)行

完成

現(xiàn)在

am
is        given
are

am
is      being
are

has   
   been given
have  

過去

was        
   given
were

was  
  being given were  

had been given

將來

shall        
   be given
will 

 

shall      
   have been given
will

過去將來

should        
   be given
would

 

should       
   have been given
would


II.例題

 例1 I learned that her father ____ in 1950.
 A had died B died C dead D is dead
 解析:該題正確答案為B。從句中的謂語動詞動作雖然發(fā)生在主句謂語動詞的動作之前,,但因從句中有明確的過去時間狀語in 1950, 所以不用過去完成時態(tài),,而用一般過去時態(tài)。

 例2 The five-year-old girl ____ by her parents.
 A is looked B has looked for
 C is being looked for D has been looked

 解析:該題正確答案為C,。在帶有介詞的動詞短語用于被動語態(tài)句中,,介詞不能省,否則就變成了不及物動詞短語,,而不能用于被動語態(tài)的句子中,。
 
 

    本站是提供個人知識管理的網(wǎng)絡(luò)存儲空間,所有內(nèi)容均由用戶發(fā)布,,不代表本站觀點,。請注意甄別內(nèi)容中的聯(lián)系方式、誘導(dǎo)購買等信息,,謹(jǐn)防詐騙,。如發(fā)現(xiàn)有害或侵權(quán)內(nèi)容,請點擊一鍵舉報,。
    轉(zhuǎn)藏 分享 獻(xiàn)花(0

    0條評論

    發(fā)表

    請遵守用戶 評論公約

    類似文章 更多