九年级英语上Unit2Pollutioncausestoomanyproblems主备人:陈蒙蒙审核人时间:2014/09/24班级:姓名:学生编号:课题:Unit2Topic2SectionA课型:预习展示课课时编号:17学习目标(1min):1.现在完成时的用法2.不定代词的用法教学重难点现在完成时的用法学习过程:Step1:自主学习(10min)1.熟读写课本的单词2.学生自主完成下列翻译1.读这篇文章______2.世界上最大的煤炭生产国和消费国_______________3.(作为)结果,因此_____4.一些有用的措施_________________5.(我们中)没有人__________________6.到处丢垃圾_______________________7.当众吐痰__________________________8.踩踏草坪_____________________________________9.采摘花朵_____________________________________10.关爱野生动物___________________Step2:合作探究(10min)1.Evenworse,someofthemarequiterudewhentalkingtoothers.2.译:_____________________________________点拨:whentalkingtoothers=when(theyare)talkingtoothers是一个省略句;在when,while引导的时间状语从句中,如果从句的主语和主句的主语一致且从句的谓语含有be动词的某种形式,可同时省略从句的主语和be练习:1)过马路时一定要小心。Dobecarefulwhen/while____________2)走在回家的路上我遇见了她。When/While,Imether.Step3:展示提升自主学习,合作探究中得问题(10min)Step4:当堂检测(15min)选择:()1.You’dbetternotreadtoday’snewspaperbecausethereisinit.A.somethinginterestingB.nothingspecialB.importantthingD.anythingnew()2.Moreandmoreanimalsarebecauseofallkindsofpollution.A.dyingoutB.dyingdownC.dyingoffD.dyingaway()3.Iwhatyouthink.A.don’tcareaboutB.haven’tcareaboutC.didn’tcareforD.won’tcarefor()4.—Whataterriblesandstorm!We’dbetternotgoout.—causesit?A.HowB.WhatC.WhyD.HowoftenStep5:课后反思:笔记栏"备栏学生自主学习完成练习组内进行讨论,完成合作探究学生大胆进行展示,鼓励学生进行发言用双色笔进行修改