來(lái)源:網(wǎng)絡(luò)來(lái)源 作者:中考網(wǎng)編輯 2021-04-27 16:52:22
中考網(wǎng)整理了關(guān)于2021年中考英語(yǔ)知識(shí)點(diǎn)之動(dòng)詞do在句中的作用,希望對(duì)同學(xué)們有所幫助,僅供參考。
動(dòng)詞do在句中的作用可以概述為四句十二字:"做"實(shí)義,助動(dòng)詞,替前文,強(qiáng)語(yǔ)氣。
作用一:實(shí)義do
do作實(shí)義動(dòng)詞時(shí),有do, does, did, done, doing五種形式,還有及物、不及物之分。如:
1. vt. "做;研究;整理;完成"。如:
①The old man does an hour of sport every day.
、赟he did her homework at home last night.
③Mother was doing the cooking when I reached home.
、蹾ave you done the exercises yet?
2. vi. "行動(dòng);工作;進(jìn)展;足夠"。如:
、貹ate does very well in her Chinese.
、贖ow do you do?
、踂ell done!
、躎hat will do.
作用二:助動(dòng)do
do作助動(dòng)詞時(shí),只有do, does, did三種形式,無(wú)詞義,限用于含行為動(dòng)詞的一般現(xiàn)在時(shí)和一般過(guò)去時(shí)兩種時(shí)態(tài)的否定句和疑問(wèn)句中。如:
①They don't have any tickets for tonight's concert.
、贙ate stayed at home last night, didn't she?
③How many books does the library have?
、躍he doesn't do the washing in the evening.
作用三:替代do
為避免動(dòng)詞的重復(fù),使語(yǔ)言簡(jiǎn)練,常以do, does, did替代前文所用的行為動(dòng)詞。如:
、賂om runs much faster than you do.
、-Lucy, can you get some more tea, please?
-Sure. I'll do it right away.
、-Who broke the cup?
-Mimi did.
③-I like bananas.
-So does he.
作用四:語(yǔ)氣do
為突出感情色彩,do常用于祈使句、強(qiáng)調(diào)句和倒裝句中,以加強(qiáng)語(yǔ)氣。如:
①Do be careful.
、贒on't tell a lie.
③He did come.
、-You often go to the park.
-So we do.
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