九年级英语全册 unit 9 when was it invented section a(1a-2c)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Unit9WhenwasitinventedSectionA(1a-2c)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1a-2c的单词和短语invent,calculator,scoop,adjustable,heel,battery,operate,batteryoperated,slipperheat,calculator,scoop2）重点短语：beusedfor,inthedark3）重点句型（Talkab

2、outinventions））：Whenwas(thetelephone...)invented?Ithinkitwasinventedin...Ithink(thetelephone...)wasinventedbefore/after...Whowasit/weretheyinventedby?Itwas/Theywereinventedby...Whatisit/aretheyusedfor?Itis/Theyareusedfor...4）重点语法：(1)一般过去时的被动语态结构和用法。2)一些发明的使用以及对它们的描述。5）Targetlanguag

3、e：①Whenwasthecarinvented?Itwasinventedin1885.②Whoweretheyinventedby?Theywereinventedby….③Whataretheyusedfor?Theyareusedforseeinginthedark.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：1)通过本单元学习使学生懂得人类的科学发明创造了丰富的物质文明。2)培养学生的创造发明的能力和愿望。◆导

4、学过程一、自主预习1、MatchthenewwordswiththeirChinesemeaninginventcalculatorscoopadjustableheeloperateslipperheatbatterylightbulbmicrowaveoven用勺舀,可调整的`后跟`拖鞋`电池供电的使变热发明创造操作作业微波炉计算器电池2、搜集过去时的被动语态的的用法，其结构为：was/were+p.p你能从课本中找出例句吗？3、查找资料预习beusedfor的用法以及invent的名词形式二、学案导学Step1.情境导入：warm-upHaveacon

5、test:Teachertellsastoryofapersonandasksstudentstoguesswhohe/sheis.HewasfromAmerica. Hewasoneofthegreatestinventorsintheworld.HewascleverbuthewasinSchoolforonly3months.Hismothertaughthimtoreadandwrite.Hebuildhisownchemicallabwhenhewasaboy.Hisfirstinventionwastheautomatictelegraphrep

6、eater(电报自动转发器).Hehasmanyinventionsinhislifeandsomeinventionshavechangedtheworld.Step2.1a.1aDoinggroupwork:Askstudentsnumbertheinventionsaccordingtheordertheywereinvented.Step3.Grammar:Thepassivevoice.(1)Theusesofthepassivevoice.(2)Thestructureofthepassivevoice.(3)Howtochangeintothe

7、passivevoice.Forexample:EdisoninventedthelightbulbThelightbulbwasinventedbyEdisonKarlBeninventedthecar_________wasinventedby__________Billinventedthetelephone__________wasinventedby__________Step4.1b.1bListeningandmatchingtheinventionswiththedates.Step5.1c.Doingpairwork:Talkaboutth

8、einventionsin1blikethis:A: