同義句變換·利用語態(tài)改寫

同義句變換·利用語態(tài)改寫

通過改變主語，主動語態(tài)與被動語態(tài)之間可進(jìn)行同義句轉(zhuǎn)換，特別要注意時(shí)態(tài)、情態(tài)動詞的用法。如

1. People grow rice in the south of China.

Rice_________ _________ in the south of China.

【答案】is grown。rice作主語，助動詞用一般現(xiàn)在時(shí)的單數(shù)形式is。

2. Everyone should give back his library books on time.

Library books should  _________ _________ on time.

【答案】be given back。被動句中含有情態(tài)動詞should，因此助動詞用be。

3. It is widely accepted that more people use computers in the world today.

Computers _________ widely _________ in the world today.

【答案】are; used。computers是復(fù)數(shù)名詞作主語，助動詞用are，且句子用被動語態(tài)。

4. We must keep the noise level under 50dbs(分貝).

The noise level must _________ _________ under 50dbs.

【答案】be kept。被動句中含情態(tài)動詞must，因此助動詞用be。

5. Do they grow rice in autumn?

 rice  in autumn?

【答案】Is; grown。疑問句的助動詞置于句首。

6. We call maths the language of science.

Maths _________ _________ the language of science.

【答案】is called。主語maths雖然是以s結(jié)尾，但并不是名詞的復(fù)數(shù)，因此助動詞仍用單數(shù)is。