1. The boy became fatter and fatter each day and _ made his parents sad. A. whichB. what C. he D. it 1.D1.D 。。 itit 指代上文提到的事。指代上文提到的事。2. Someone is ringing the doorbell. Go and see __A.who is he B.who he is C.who is it D.who it is2.D2.D 。。 itit 作人称代词作人称代词 ,, 用来指代身份和性用来指代身份和性别等不明确的人。别等不明确的人。Life is like a fire; it begins in smoke, and ends in ashes.1. 用作人称代词 2. 用作非人称代词 Read and analyze the sentences.It is Friday today.It was very cold last Monday. It is about 8:30 now.It is about 25km from Longxian to Bazi.It lies in the south of Shaoguan city.It is 40°C ! You got a high fever!Conclusion: it 可以用作非人称代词 , 表示 _____,_____, ______, ______, ______, ______ 等。dateweathertimedistanceplacetemperature 日期天气时间距离地点温度她回来时已接近午夜。It was nearly midnight when she came back. 这里很吵。It is noisy here.今天很冷。It is very cold today.3. It 做形式主语真正的主语可以是后面的:To do V-ing 主语从句 It is important to know your limitations. 知道自己的局限性是很重要的。 It is a good idea to have a little notebook handy. 手边有个小笔记本是个好主意。 It is against the law to do that. 这样做是违法的。 It gives me great pleasure to see the movie. 观看电影让我很高兴。It is no good/no use/great fun/worthwhile/a new experience doing sth. It is fun working for him. 为他工作很有意思。Do you think it is worthwhile quarrelling with him ? 你认为和他吵值得吗?Talk about the following pictures, using It is no use/good doing sth 做……没有用 / 不好It is fun doing sth 做……很有趣还想跑?甭想!想追我 ?没门!It is a wonder that he is still alive. 他居然还活着 , 真是个奇迹。 It happened that the harvest was bad that year. 碰巧 , 那年的收成不好。It is sai...