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Lesson 4 What Is It?【学习目标】1）Master vocabulary: blackboard pen pencil pencil-box ruler2）Master the sentence patterns :Whats this/that? This / That /It is.【自主学习】-明确目标 自学文本任务一：根据Lesson 4 What Is It?预习课件掌握本节课的四会单词和短语:任务二：听录音跟读Lesson 4 What Is It?课文，跟读2-3遍，了解对话大意。并完成书中9页的练习题任务三：认真学习下面的知识点，标记出不理解的地方 Lets+动词原形+其他！让我们吧！Lets do sth. 意为让我们做某事吧，主要用于向对方提出建议或意见。lets是let us的缩写，后接动词原形。 Lets go for a walk. 让我们去散步吧。辨析 lets与 let uslets 用于提出建议，其中us包括对方在内。Let us.= Please allow us to do.,表示请求对方允许做某事，这时us不包括对方在内。 go first 先来; 先说; 先请;先走 Lets begin. You go first, Li Mei. 让我们开始吧。李梅, 你先来。 Is it a ruler? 它是一把尺子吗？这是一个一般疑问句，肯定回答用Yes, it is. ,其中it is不能缩写。否定回答用No, it isnt.。拓展Yes, it is./No, it isnt.同样可用于回答 Is that/this.? 句式。答语中it代替问句中的this或that。 Its ones turn ( to do sth. ).轮到某人（做某事）了。 Its her turn to clean the room. 轮到她打扫房间了。拓展take turns to do sth. = take ones turn to do sth. 意为轮流做某事。 on/in the wall 在墙上 Whats on the wall? 墙上有什么？ There is a hole in the wall. 墙上有个洞。 try to do sth. 尽力做某事 He tries to learn English well. 他尽力学好英语。拓展 try doing sth. 意为“试着做某事”。【自学检测】-在线测学，质疑思学1在线测学：请你在平台完成以下自学检测作业(Unit 1-Lesson 4自学检测)，提交后自己看错题及解析。单项选择( )1. Its your turn _ a song.A. sing B. to sing C. singing D. sings( )2. Whats that _ English?A. in B. on C. with( )3. Whats that?_ English book.A. Its a B. Thats an C. Its an D. Thats a( )4. Is this your watch?_ Its his watch.A. Yes, it is. B. No, it isnt. C. Yes, they are. D. No, they arent.【思学质疑】把你在本次课程学习中的困惑与建议如实写在下面，并拍照上传到讨论区(课前质疑)。_
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