來(lái)源:中考網(wǎng) 作者:紫涵 2012-11-06 16:52:54
助動(dòng)詞(do, does )的用法
只有實(shí)意動(dòng)詞作謂語(yǔ)時(shí)才涉及使用助動(dòng)詞。以like為例:
1)當(dāng)句子為肯定句時(shí)不涉及使用助動(dòng)詞,只涉及"主謂一致"原則。
eg : I like English a lot.
Michael likes Chinese food very much.
2)當(dāng)句子為否定句時(shí),要根據(jù)主語(yǔ)的人稱來(lái)決定使用相應(yīng)的助動(dòng)詞:當(dāng)主語(yǔ)為"三單"時(shí),要使用does;當(dāng)主語(yǔ)為"非三單"時(shí),用助動(dòng)詞原形do。例如把下列句子變否定句:
Kangkang likes math.----Kangkang doesn't like math.
They like sports.------They don't like sports.
3)當(dāng)句子變疑問(wèn)句時(shí),同樣要根據(jù)句子的主語(yǔ)來(lái)決定在句首使用Do或Does.例如下列句子變問(wèn)句:
Michael likes Chinese Food.----Does Michael like Chinese food? Yes, he does./ No, he doesn't.
Jane and Helen like music.----Do Jand and Helen like music? Yes, they do./ No, they don't.
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