關(guān)于初中英語語法：Do 的二作用
動詞do在句中的作用可以概述為四句十二字：做實義，助動詞，替前文，強語氣。
作用一：實義do
do作實義動詞時，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；工作；進展；足夠。如：
�、貹ate does very well in her Chinese.
�、贖ow do you do?
�、踂ell done!
④That will do.
作用二：助動do
do作助動詞時，只有do, does, did三種形式，無詞義，限用于含行為動詞的.一般現(xiàn)在時和一般過去時兩種時態(tài)的否定句和疑問句中。如：
�、賂hey don't have any tickets for tonight's concert.
②Kate 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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