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關(guān)于初中英語(yǔ)語(yǔ)法：Do 的二作用
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：
�、賂he old man does an hour of sport every day.
②She did her homework at home last night.
�、跰other 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：
①Kate does very well in her Chinese.
�、贖ow do you do?
③Well 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：
�、賂hey don't have any tickets for tonight's concert.
�、贙ate stayed at home last night, didn't she?
�、跦ow many books does the library have?
④She doesn't do the washing in the evening.
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