Unit 2 School activities 复习课件

课件22张PPT。四年级上册Unit 2 School ActivitiesPresent Continuous Tense现在进行时The Present Continuous Tense 现在进行时Listen , The bird is singing.Look , Lucy is reading.Tom is playing soccer now.1、定义：现在进行时：表示正在发生或进行的动作或事情。2、常见标志词： now（现在） look（看） listen（听）…3、句子结构： 人称 + be动词(is, am ,are)+动词ing形式 注：be动词随人称的变化而变化 肯定句：人称 + be动词(is, am ,are)+动词ing形式 1. I am watching TV now. 2. He is running. 3.They are playing football . 否定句：人称 + be动词(is, am ,are)+not+动词ing形式 1. I am not watching TV now. 2. He isn’t running. 3.They aren’t playing football . 一般疑问句：I amwatching TV nowAre you ?.He isrunning.Ishe?They areplaying football.Are they?巧记：我I用am，你you用are，is连着他he,她she,它it，单数is，复数are 1. I am watching TV now. 2. He is running. 3.They are playing football . They aren’t playing football. Are they playing football ? Yes, they are ./ No, they aren’t. What are they doing ? e.g.(二) 动词ing的变化规则1. 一般在动词后面加ing。 例：read--reading do--doing2. 去掉末尾不发音的e，再加ing，但是(be,see)不能去掉，因为e发音。ride-- riding dance--dancing (see--seeing)3. 以重读闭音节结尾的动词，要双写最后一个辅音字母再加ing。 归纳如下，分四竖记：写出下列动词的ing形式sing_____ play_____ sleep _____ eat_____ read _____ paint_____ think_____ fish_____ fly _____ make_____ write_____ dance_____ have _____ swim_____ run_____What is he doing?He is drinking water (now).Is he drinking water (now)?Yes, he is.现在进行时句式操练What is she doing?She is cleaning the house.Is she doing her homework?No,she isn’t.现在进行时句式操练What are they doing?They are running.Are they writeing?No,they aren’t.现在进行时句式操练 ( School Activities) School Activities There are many students in the school now. Look! Some boys are playing basketball and the girls are skipping. Some of the students are playing soccer, others are writing. Some of the students are studying. Some of the students are painting. Who is over there ? Oh, it’s Tom. He’s swimming. They’re all having a good time.Thank you !