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.
②She did her homework at home last night.
③Mother was doing the cooking when I reached home.
④Have you done the exercises yet?
2. vi. “行動；工作；進展；足夠”。如：
①Kate does very well in her Chinese.
②How do you do?
③Well done!
④That will do.
Do做語氣詞：
為突出感情色彩，do常用于祈使句、強調句和倒裝句中，以加強語氣。如：
①Do be careful.
②Don't tell a lie.
③He did come.
④-You often go to the park.-So we do.
今天就和大家就分享到這，祝愿同學們用辛勤的汗水去收獲美好的未來吧！
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