初中英語知識(shí)點(diǎn)總結(jié):主動(dòng)語態(tài)和被動(dòng)語態(tài)
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知識(shí)點(diǎn)總結(jié)

語態(tài)表示主語和謂語的關(guān)系。語態(tài)有兩種:主動(dòng)語態(tài)和被動(dòng)語態(tài)。如果主語是動(dòng)作的執(zhí)行者,或者是說動(dòng)作是由主語完成的,要用主動(dòng)語態(tài),如:We speak Chinese in China.在中國我們說漢語;如果主語是動(dòng)作的承受者,或者是說動(dòng)作不是由主語而是由其他人完成的,則用被動(dòng)語態(tài),如:Chinese is spoken by us in China.在中國漢語被我們說。

一、主動(dòng)語態(tài)改成被動(dòng)語態(tài)方法  把主動(dòng)語態(tài)改為被動(dòng)語態(tài)非常簡單,可以遵循以下幾個(gè)步驟:

1. 將主動(dòng)語態(tài)的賓語作被動(dòng)語態(tài)的主語;

2. 謂語動(dòng)詞變?yōu)椤癰e+及物動(dòng)詞的過去分詞”,并通過be的變化來表達(dá)出不同的時(shí)態(tài);

3主動(dòng)語態(tài)的主語變?yōu)榻樵~by的賓語,組成介詞短語放在被動(dòng)結(jié)構(gòu)中的謂語動(dòng)詞之后。(有時(shí)by的短語可以省略);

例:1. Bruce writes a letter every week. →A letter is written by Bruce every week.

二、被動(dòng)語態(tài)的用法:

1. 一般現(xiàn)在時(shí)的被動(dòng)語態(tài)構(gòu)成:is / am / are + 及物動(dòng)詞的過去分詞   Our classroom is cleaned everyday.

2. 一般過去時(shí)的被動(dòng)語態(tài)構(gòu)成:was / were + 及物動(dòng)詞的過去分詞   A new shop was built last year.

3. 現(xiàn)在完成時(shí)的被動(dòng)語態(tài)構(gòu)成:has / have + been + 及物動(dòng)詞的過去分詞   This book has been translated into many languages.   

4. 一般將來時(shí)的被動(dòng)語態(tài)構(gòu)成:will+ be + 及物動(dòng)詞的過去分詞     Many more trees will be planted next year.

5. 含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)構(gòu)成:情態(tài)動(dòng)詞+ be + 及物動(dòng)詞的過去分詞   Young trees must be watered often.

6. 現(xiàn)在進(jìn)行時(shí)的被動(dòng)語態(tài)構(gòu)成:am / is / are + being + 及物動(dòng)詞的過去分詞   Uncle Wang is mending my bike now.→   My bike is being repaired by Tom now.

7. 不定式的被動(dòng)語態(tài):to + be + 及物動(dòng)詞的過去分詞   There are two books to be read. →   There are twenty more trees to be planted.

三、使用被動(dòng)語態(tài)應(yīng)注意的幾個(gè)問題:

1. 不及物動(dòng)詞無被動(dòng)語態(tài)。  What will happen in 100 years.   The dinosaurs disappeared about 65 million years ago.

2. 有些動(dòng)詞用主動(dòng)形式表示被動(dòng)意義。This pen writes well.  This new book sells well.

3. 感官動(dòng)詞或使役動(dòng)詞使用省略to的動(dòng)詞不定式,主動(dòng)語態(tài)中不帶to,但變?yōu)楸粍?dòng)語態(tài)時(shí),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   The boss made the little boy do heavy work.→The little boy was made to do heavy work by the boss.

4. 如果是接雙賓語的動(dòng)詞改為被動(dòng)語態(tài)時(shí),直接賓語(物)作主語,那么動(dòng)詞后要用介詞,這個(gè)介詞是由與其搭配的動(dòng)詞決定。   He gave me a book.→A book was given to me by him.   He showed me a ticket.→A ticket was shown to me by him.

5. 一些動(dòng)詞短語用于被動(dòng)語態(tài)時(shí),動(dòng)詞短語應(yīng)當(dāng)看作一個(gè)整體,而不能丟掉其中的介詞或副詞。   We can’t laugh at him. →He can’t be laughed at by us.

常見考法

對(duì)于語態(tài)考查,多以單選、詞語運(yùn)用的形式考查學(xué)生在具體語境中靈活運(yùn)用被動(dòng)語態(tài)的能力。一般情況下,會(huì)綜合考查時(shí)態(tài)和語態(tài),這時(shí),要根據(jù)語境和動(dòng)作發(fā)生的時(shí)間來確定時(shí)態(tài),然后再確定語態(tài)。

典型例題:–Could you tell me whom the radio__________by? -Sorry, I have no idea.

A. invents   B. invented   C. is invented   D. was invented 

解析:題干的意思是“你能告訴我收音機(jī)是誰發(fā)明的嗎?”,發(fā)明收音機(jī)是過去的事,所以用過去時(shí),排除 A和C;而radio和invent 構(gòu)成被動(dòng)關(guān)系,應(yīng)用被動(dòng)語態(tài),排除B

答案:D

誤區(qū)提醒

有些動(dòng)詞后跟不帶to的不定式作賓語補(bǔ)足語,但改為被動(dòng)結(jié)構(gòu)后要加上“to”,這一點(diǎn)我們必須注意。

典型例題:The young man was often seen _____ by the lake.

A. to draw   B. to drawing  C. draw   D. drew

解析:這是2007年濟(jì)南的中考題。“看到某人做某事”為see sb.do sth.。句中動(dòng)詞原形是省略to的不定式,在被動(dòng)語態(tài)中要還原to。

答案:A

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