(1)作主语 　　To learn a foreign language is not easy. 　　It is not easy to learn a foreign language. 　　(2)作宾语 　　They began to read. 　　(3)作宾语补足语 　　Jim asked me to help him with his lessons. 　　We often hea

　　初中英语知识点——加to do= 加doing的考查动词 　　1. start to do =start doing 开始做 　　When did you start to learn English? 你何时开始学英语的? 　　2. learn to do = learn doing学着做 　　She is learning to play the piano. 她在学弹钢琴。 　　3. c