蔡 紅
從七年級到九年級我們一直在學習主動語態(tài),逐漸形成了用主動語態(tài)處理語言的思維習慣,用被動語態(tài)思維的意識卻相對薄弱。而英語中的動詞有兩種語態(tài),所以,同學們首先要樹立兩種語態(tài),兩者兼顧、全面思考問題的意識。筆者根據(jù)多年的教學經(jīng)驗,下面談?wù)勛约航虒W總結(jié)。
一、語態(tài)概述
英語的語態(tài)是通過動詞形式的變化表現(xiàn)出來的。英語中有兩種語態(tài):主動語態(tài)(active voice)和被動語態(tài)(passive voice)。主動語態(tài)表示主語是動作的執(zhí)行者。例如:Many people speak Chinese.謂語speak的動作是由主語many people來執(zhí)行的。被動語態(tài)表示主語是動作的承受者,即行為動作的對象。例如:Chinese is spoken by many people.主語Chinese是動詞speak的承受者。
二、動語態(tài)的構(gòu)成
英語中的被動語態(tài)是各種時態(tài)結(jié)合在一起使用的,其構(gòu)成是由"助動詞be+及物動詞的過去分詞"構(gòu)成。(不及物動詞無被動語態(tài)),人稱、數(shù)和時態(tài)的變化是通過be的變化表現(xiàn)出來的。例如我們來看下面不同時態(tài)的被動語態(tài)的構(gòu)成.(括號里的句子為各種時態(tài)的例句舉例)
①一般現(xiàn)在時:am/is/are+動詞的過去分詞
(The classroom is cleaned by the students every day.)
②一般過去時:was/were+動詞的過去分詞
(The classroom was cleaned by students just now)
③一般將來時:will/shall+be+動詞的過去分詞
(The classroom will be cleaned by students.)
④過去將來時:would/should+be+動詞的過去分詞
(The classroom would be cleaned by students)
⑤現(xiàn)在進行時:am/is/are+being+動詞的過去分詞
(The classroom is being cleaned by students)
⑥過去進行時:was/were+being+動詞的過去分詞
(The classroom was being cleaned by students.)
⑦現(xiàn)在完成時:have/has+been+動詞的過去分詞
(The classroom has been cleaned by students)
⑧過去完成時:had+been+動詞的過去分詞
(The classroom had been cleaned by students)
三、被動語態(tài)的用法
(1)不知道或沒有必要說明動作的執(zhí)行者是誰。
例如:Some new computers were stolen last night.一些新電腦在昨晚被盜了。(不知道電腦是誰偷的)
This bridge was founded in 1981.這座橋竣工于1981年。
(2)強調(diào)動作的承受者,而不強調(diào)動作的執(zhí)行者。
例如:The glass was broken by Mike.玻璃杯是邁克打破的。
This book was written by him.這本書是他寫的。
Your homework must be finished on time.你們的家庭作業(yè)必須及時完成。
(3)當動作的執(zhí)行者不是人時,使用別動語態(tài),例如:
①The house was washed away by the storm(這棟房子被暴風吹倒了)
②We are all shocked by the news of his sudden death (他的突然去世使我們大家都感到很震驚)
四、如何將主動語態(tài)變?yōu)楸粍诱Z態(tài)
1、一般的主動語態(tài)變成被動語態(tài)的方法
把主動語態(tài)變?yōu)楸粍诱Z態(tài)時,先把主動結(jié)構(gòu)的賓語變成被動結(jié)構(gòu)的主語,然后把主動結(jié)構(gòu)的動詞由主動語態(tài)變成被動語態(tài),再在動詞被動語態(tài)后加介詞by,再將主動語態(tài)結(jié)構(gòu)中的主語放在介詞by之后變成介詞by的賓語。
①He wrote a letter → A letter was written by him
②They are building a road → A road is being built by them
③We shall finish the work soon →The work will be finished soon by us.
2、主動語態(tài)結(jié)構(gòu)中含有兩個賓語時,如何變?yōu)楸粍诱Z態(tài)結(jié)構(gòu)
當主動語態(tài)結(jié)構(gòu)中含有兩個賓語變?yōu)楸粍诱Z態(tài)結(jié)構(gòu)時時,一般把指“人”的間接賓語變?yōu)橹髡Z,指“物”的直接賓語保留不動。例如:
①We gave him some books →He was given some books by us.
②My father bought me a new bike. →A new bike was bought for me by my father.
③He showed me a ticket.→A ticket was shown to me by him
3、如何把含有賓語補足語的主動語態(tài)變?yōu)楸粍诱Z態(tài)
含有賓語補足語的句子,賓語變?yōu)橹髡Z之后,賓語補足語改為主語補足語,原來的位置一般不變,但如果賓語補足語是不帶to的動詞不定式,句子變成被動語態(tài)后則要加to,以便將兩個動詞隔開。這類動詞有hear, watch, make, help, let等,如:①The boss made my grandfather work 10hours a day. →My grandfather was made to work for 10 hours a day.
②They saw him enter the room→He was seen to enter the room
③A girl saw my wallet drop when she passed by.→My wallet was seen to drop by a girl when she passed by.
五、使用被動語態(tài)應(yīng)注意的幾個問題:
1. 不及物動詞無被動語態(tài)。
What will happen in 100 years.
The dinosaurs disappeared about 65 million years ago.
2. 有些動詞用主動形式表示被動意義。
This pen writes well.
This new book sells well.
3. 感官動詞或使役動詞使用省略to的動詞不定式,主動語態(tài)中不帶to ,但變?yōu)楸粍诱Z態(tài)時,須加上to 。
例:make somebody do something→somebody+ be +made to do something
see somebody do something→somebody +be +seen to do something
4、一些動詞短語用于被動語態(tài)時,動詞短語應(yīng)當看作一個整體,而不能丟掉其中的介詞或副詞。
We cant laugh him. →He cant be laugh by us.
He listens to the radio every day. →The radio is listened to by him every day.
The nurse is taking care of the sick man. →The sick man is being taken care of by the nurse
總之,學習被動語態(tài),要牢固掌握被動語態(tài)結(jié)構(gòu)形式,即be+及物動詞的過去分詞。這是樹立被動語態(tài)意念的關(guān)鍵,也是學好被動語態(tài)的主線和重點。 要靈活運用助動詞be的不同形式。即在各種時態(tài)中及各種句型中的變化,如一般現(xiàn)在時態(tài)中be有is, am, are三種形式。一般過去時態(tài)中be有was, were兩種形式。這兩種時態(tài)的一般疑問句,否定句及特殊疑問句都是通過be來體現(xiàn)的,而帶有情態(tài)動詞的被動語態(tài)則是通過情態(tài)動詞來體現(xiàn)的。這些變化形式同學們不妨在草稿紙上多練習幾遍,就象我們在記數(shù)學、物理或化學公式一樣,久而久之也就記住了。另外還要記牢過去分詞,尤其是不規(guī)則動詞的過去分詞。