九年级英语全册 unit 9 when was it invented section a 3a 3b 4学案 人教新目标版

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1、江西省萍乡市芦溪县宣风镇中学九年级英语全册Unit9WhenwasitinventedSectionA3a3b4学案（无答案）人教新目标版教师寄语：It’snevertoolatetomend.亡羊补牢，犹为未晚◆导学目标:1．基础知识目标：1）准确朗读并识记70页的单词和短语lightbulbmicrowaveoven2）重点短语：beusedfor,inthedark3）重点句型（Talkaboutinventions））：Whatdoyouthinkisthemosthelpfulinvention?Ithinkthemosthelpfulinventionis….Itgi

2、vespeoplemoretimetoworkandplayeveryday.4）重点语法：(1)一般过去时的被动语态结构和用法。（2）发明的使用以及对它们的描述。5）Targetlanguage：①Whenwasthecarinvented?Itwasinventedin1885.②Whoweretheyinventedby?Theywereinventedby….③Whataretheyusedfor?Theyareusedforseeinginthedark.④A:Whatdoyouthinkisthemosthelpfulinvention?⑤Ithinkthemosth

3、elpfulinventionisthelightbulb.⑥itgivespeoplemoretimetoworkandplayeveryday.2．能力目标：使学生学会正确运用被动语态谈论重要的发明的历史和用途3、学习策略（Learningstrategies）:1）Roleplaying2)Discussion4、情感目标：通过熟悉我们周围经常使用发明物的历史来开阔眼界，丰富自己的阅历，使自己养成勤于思考，善于总结的好习惯。◆导学过程一、自主预习Explainthewords’meaningsinyourownwordsonyournotebook.1.Invent:The

4、rewasnotsuchathingintheworld.Someonemadeitandthenthereissuchathing.Sowecansaysomeoneinventedit.2.Discover:Thereisathing.Butpeopledon’tknowitorfewpeopleknowit.Someonefinditandmakeitknowntopeople.Wecansaysomeonediscoversit.3.Scoop:Whenitisanoun,itmeansashort-handledtoolfortakingupandmovingsomet

5、hing.Whenitisaverb,itmeansliftingsomethingwithascoop.4.Mistake:IfIsay2and2is1,youcansayImakeamistake.5.Annoying:makeoneangry,unhappyoruncomfortable.6.Adjustable:thatcanbemademorehelpfuloruseful.7.Microwave:veryshortwave.二、学案导学Step1.Greetings.Step2.Revision:Showsomepicturesofinventionsandtalka

6、boutthem.A:WhatisitinEnglish?B:It’s…A:Whenwasitinvented?B:Itwasinvented…A:Whatisitusedfor?B:Itisusedfor…Step3.Learnnewwords:useful,annoyingAskstudentstogivesomeexamplestoshowwhateachwordmeans.Forexample:Avacuumcleanerisuseful.Averyloudtruckisannoying.Step3.3a.PairworkTherearetwokindsofinventi

7、ons.Oneishelpfulinvention,andtheotherisannoyinginvention.Nowinpairsmakealistoffivehelpfulinventionsandfiveannoyinginventions.Giveanexample.HelpfulinventionsAnnoyinginventionsExample:telephoneExample:alarmclock1.plane1.atomicbomb2.computer2.mi