五年级上册英语课件-Unit 9 It smells delicious --it-教科版（广州深圳）

Unit 9 It smells delicious It 用法 Who is it? It is me . 这里的“it”是什么意思呢？ It was stolen. They promise me to find it. It is a pity. 这里的“it”是什么意思呢？ It 用法 一. 作指示代词 二. 作形式主语或形式宾语 三. 用于强调句 一，作指示代词 1）it 可作指示代词代替上文提到的事物或情况。 1.My pen is missing, I can’t find it anywhere. 2.Tom has failed in the exam.Have you heard about it? ※it 用法和which 引导的非限制性定语从句用法的区别。 He failed in the exam，and it worried him. He failed in the exam. It worried him. He failed in the exam，which worried him. 2)当说话者不清楚说话对象的性别时,可用it来表示。 It’s a lovely baby. Is it a boy or a girl？ Go and see who it is. It’s me. Open the door, please 3) It 指天气、时间、距离、自然现象、环境等。 It is sunny today. It is five o’clock. It is twenty miles to the zoo. It is very quiet here. It is spring now. 二. 作形式主语或形式宾语 it 作形式主语或形式宾语,代替不定式、动名词、主语从句或宾语从句。 It is interesting to listen to the popular music. It is no use learning a theory without practice. It is not yet known where she has gone. I find it very easy to surf the internet. I think it my duty to serve the people