第1个回答 2020-11-01
动词的语态
语态也是动词的一种形式,英语有两种语态:主动语态和被动语态.主动语态表示主语是动作的执行者,而被动语态表示主语是动作的承受者.
1)We use electricity to run machines. (主动语态)
2)Electricity is used to run machines. (被动语态)
1.不能用于被动语态的动词和短语
(1)在英语中,不及物动词不能用于被动语态,但有些不及物动词(包括短语)容易引起误用.如:appear, belong, belong, die, escape, fall, happen, last, remain, succeed, occur, come true, take place, consist of.
(2)某些表示状态或特征的及物动词,如:become, contain, cost, fit, have, resemble, suit也没有被动语态.
2.被动语态的时态形式
常用的被动语态有表1所列的几种时态形式.
表1
时?SPAN lang=EN-US> 一般时 进行时 完成时
现在 am asked am being asked
is asked is being asked
are asked are being asked
过去
was be asked was being asked
were be asked were being asked
将来 shall be asked shall have been asked
will be asked will have been asked
过去 should be asked should have been asked
将来 would be asked would have been asked
3.短语动词的被动语态
短语动词转换为被动语态时,通常被看作是一个动词,后面的介词或副词不能拆开或省略.例如:
1)So far no correct conclusion has arrived at.
2)All the rubbish should be got rid of.
4.“get + -ed分词”的被动语态
“get + -ed分词”结构强调动作的结果,而非动作本身,常用来表示突发性的,出乎意料的偶然事件.例如:
The boy got hurt on his way home from work.
另外,“get + -ed分词”还可用于谈论为自己做的事,是主动的行为而不是被动的行为.例如:
get dressed(穿衣服) get divorced(离婚)
get engaged(订婚) get confused(迷惑不解)
get lost(迷路) get washed(洗脸)
get married(结婚)
5.能带两个宾语和复合宾语的动词改为被动语态
(1)能带两个宾语的动词改为被动语态时,一次只能由一个宾语作主语,另一个宾语被保留下来.例如:
1)We showed the visitors our new products.(主动语态)
2)The visitors were shown our new products.(被动语态)
3)Our new products were shown to the visitors.(被动语态)
(2)能带复合宾语的动词改为被动语态时,原来的宾语补足语变为主语补足语.例如:
1)The teacher appointed him League secretary.(主动语态)
2)He was appointed League secretary.(被动语态)
6.被动语态与系表结构的区别
(1)The novel was well written.(系表结构)
(2)The novel was written by Diskens.(被动语态)
7.少数动词的主动语态有时有被动的意思
例1:The book is selling remarkably well.
例2:The song sounds very beautiful.
能这样用的动词还有read(读起来),clean(擦起来),wash(洗起来),write(写起来).
例3:My watch needs cleaning. (= My watch needs to be cleaned).
能像need这样用的动词还有:want, require, deserve, do, owe, bind等.
例4:The meat is cooking.
例5:The book written by the professor is printing.
在英语中被动语态分时态,我给你举些例子:
(1)一般现在时:This song is often sung by children.孩子们常唱这首歌.
(2)一般过去时:This house was built in 1958.这房子建于1958年.
(3)一般将来时:Many buildings will be built in my home town.在我的家乡,许多大楼将要建成.
(4)过去将来时:The old scientist said that he would be invited to vist their country before long.那位老科学家说不久他将应邀访问他们的国家.
(5)现在进行时:The proposal is being considered now.正在考虑这个提案.
(6)过去进行时:Mr Wu was in hospital .When we went to see him,he was being operated on.吴先生住院了.我们去看他时,他正在动手术.
(7)现在完成时:Have the letters been posted ?信已经寄出去了吗?
(8)过去完成时:He came and told us that the work had been finished.他来告诉我们,工作已经完成.
(9)将来完成时:By the end of this year,the tall building will have been built.到今年年底,这幢高楼将建成.
(10)过去将来时:The boy told mother that his homework have been finished by ten o'clock.男孩告诉妈妈到10:00他将做完作业.