1 在进行时态中 例如: He is watching TV in the room. They were dancing at nine o'clock last night. 2 在there be结构中 例如: There is a boy swimming in the river. 3 在have fun/problems结构中 例如: We have fun learning English this term. They had problems getting to the top of the mountain. 4 在介词后面 例如: Thanks for helping me. Are you good at playing basketball? 5 在以下结构中 例如: enjoy doing sth 乐于做某事 finish doing sth 完成做某事 feel like doing sth 想要做某事 stop doing sth 停止做某事 forget doing sth 忘记做过某事 go on doing sth 继续做某事 remember doing sth 记得做过某事 like doing sth 喜欢做某事 keep sb doing sth 使某人一直做某事 find sb doing sth 发现某人做某事 see/hear/watch sb doing sth 看到/听到/观看某人做某事 try doing sth 试图做某事 need doing sth 需要做某事 prefer doing sth 宁愿做某事 mind doing sth 介意做某事 miss doing sth 错过做某事 practice doing sth 练习做某事 be busy doing sth 忙于做某事 can't help doing sth 禁不住做某事 |
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