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英語中時態很多,但語態不多,只有兩種,即:主動語態和被動語態。所謂“被動語態”,相當于中文中常說的“被……”、“由……”的句式,如:“他的自行車被偷了。”,“這座樓房是由他們建造的。”
中考考綱中主要考查不同時態的被動語態和情態動詞的被動語態。其中以一般過去時的被動語態、一般現在時的被動語態和一般將來時的被動語態為主,其次涉及到含有情態動詞的被動語態和現在完成時的被動語態。卷面中被動語態所占分值為1-3分,一般分布在單選,完形填空,短文填空以及書面表達中。
為了讓同學們能夠盡快掌握這部分的重難點,今天奇速君分享的就是被動語態的相關知識點。
概念
語態(Voice)是動詞的一種形式,用以表示主語和謂語之間的關系。
英語的語態包括兩種形式:主動語態(active voice)和被動語態(passive voice)。主動語態表示主語是動作的執行者,被動語態表示主語是動作的承受者。被動語態是動詞的一種特殊形式,一般來說,只有需要動作對象的及物動詞才有被動語態。
主動語態表示主語是動作的執行者。巧記為:主動、主動、主去動。Many people speak English.謂語:speak的動作是由主語many people來執行的。
被動語態表示主語是動作的承受者,即行為動作的對象。巧記為:被動、被動、主被動。English is spoken by many people.主語English是動詞speak的承受者。He opened the door.他開了門。(主動句)The door was opened.門被開了。(被動句)
構成
His bicycle was stolen.The building has been built in 2000.通過上面的例句,可以看出,“被動語態”的構成是:be + 過去分詞 ( + by + 動作執行者)
形式
被動語態由助動詞be加及物動詞的過去分詞構成,強調動作是由什么人或什么東西而發出時,常用介詞“by +行為發出者”,即be+done+by+行為發出者。
被動語態可用于各種時態,通過助動詞be的變化來表示:
1、一般現在時的被動語態. am / is / are + 動詞的過去分詞Our classroom is cleaned every day.This car is made in China.
2、一般過去式的被動語態: was / were + 動詞的過去分詞His desk was cleaned just now.The station was built in 1928.
3、現在進行時的被動語態: am / is / are + being + 動詞的過去分詞A new factory is being built in our city now.Some trees are being cut down in the park.
4、過去進行時的被動語態: was / were + being + 動詞的過去分詞A new factory was being built in our city at that time.Some babies were being looked after by Miss Chen last year.
5、一般將來時的被動語態:(A) will / shall + be + 動詞的過去分詞(B) am / is / are + going to be +動詞的過去分詞.Some new factories will be built in our city this year.Your watch is going to be mended in an hour.
6、過去將來時的被動語態:(1)would / should + be + 動詞的過去分詞(2)was / were +going to be + 動詞的過去分詞.She said that some new factories would be built soon in our city.He thought that your watch was going to be mended after an hour.
7、現在完成時的被動語態:have / has + been + 動詞的過去分詞Some new factories have been built in the city since last year.Your watch has been mended already.
8、過去完成時的被動語態:had + been + 動詞的過去分詞He said that some new factories had been built in the city.I didn’t know that my watch had been mended .
9、含情態動詞的被動式:can/may/must + be + done(1)You must hand in your homework after class.Your homework must be handed in after class.(2)He can write a letter with the computer.A letter can be written with the computer by him.
運用
第一種情況:不知道動作的執行者,就是不知道誰干的Dan’s bike was stolen last week. 丹的自行車上周被偷了。My windows were broken yesterday. 我的窗戶昨天被打爛了。
第二種情況:沒有必要交代動作的執行者,就是說:不用說出來大家也知道誰干的Rice is also grown in North China. 華北地區也種水稻。A new railway station will be built next year. 明年要建一座新的火車站。
第三種:為了強調動作的承受者,這里我們比較一下主動和被動:Prisoners of War built the bridge. 戰俘修建了這座橋。此句的主句是 Prisoners of War,是來回答 Who built the bridge? 這個問句,所以此句強調的是動作的執行者---戰俘,交代戰俘做了什么事。變被動之后:The bridge was built by Prisoners of War.這座橋是被戰俘修建的。這樣說的話,主語變成了“the bridge”---這座橋,此句是回答 What was built? 所以此句是強調“什么被建造”即強調動作的承受者。又如:The book was written by Shi Naian. 這本書是施耐庵寫的。
以上是被動語態使用的三種情況或者說時機,第三種雖然強調動作的承受者,但一般也要交代動作的執行者,用 by + 執行者 來表達。