摘要:本单元主要围绕天气这一话题展开讨论.要求同学们能掌握有关天气的词汇(cloudy, rainy, sunny, snowy.)及相关句型(How is the weather? What’s the weather like ?,并围绕天气这一题材互相进行对话. 2初步掌握现在进行时的用法: 1)..现在进行时表示现在正在进行或发生的动作 e.g. She is singing. 她正在唱歌. 2).现在进行时也可表示当前一段时间内的活动或现阶段正在进行或发生的动作. We are working on a farm theses days.这几天我们在农场干活. I am writing a book this month.这个月我在写书. 3).现在进行时是由be + 动词现在分词构成形式的. 4)现在分词的几种构成形式: ①一般动词后直接+- ing. e.g. do-doing see-seeing fly-flying 以不发音的e结尾.去e加-ing. e.g. take-taking write-writing ride-riding 以一个元音加一个辅音字母结尾的重读闭音节单词.先双写那个辅音字母. 再加- ing. e.g. sit-sitting cut-cutting stop-stopping ④以ie结尾的单词.先变ie为y.再加-ing. e.g. lie-lying die-dying tie-tying 5).注意主语不同时.后面动词be应随主语改变: e.g. He is writing. We are running. I am doing my homework. 6).与现在进行时连用的时间状语最多的是now“现在 .有时会有其它词作为提示词.如look, listen等. e.g. Look! Who is running? 瞧!谁在跑步? Listen! Jim is singing in the next classroom.听!吉姆正在隔壁教室唱歌. 7).询问“某人正在干什么? 用这个句型: What +be +主语+doing? e.g. What is he / she / Mr. Wang doing? What are you / they doing? 知识链接

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