2024-2025学年人教版初中英语九年级（上）教案 UNIT 6 Section A（1a-2d）第1课时

UNIT6Whenwasitinvented?SectionA(1a—2d)第1课时设计说明本课时学习发明的相关对话。教学时给学生展示一些卡片，从谈论中国古代的四大发明入手导入新课，接着展示有关历史上重要发明的图片并做讨1c、2a2c的学习。通过听对话配对、听对话填表格、练习对话等活动，使学生理解对话内容。最后，阅读2d的内容，要求学生理解对话，回答问题，解决问题。通过2d了解拉链的有关知识。教学目标通过本课时的学习，让学生达成以下目标：1.知识目标：(1)单词：heel,scoop,electricity,style,project,pleasure,zipper,daily,website,pioneer,list,mention(2)(3)句型：—Whenwas…invented?—Ithinkitwasinventedin…—Whatis/are…usedfor?—Itis/Theyareusedfor...2.能力目标：(1)听并用被动语态谈论重要的发明及其历史和用途;(2)学会运用被动语态谈论发明物的历史，描述物品的用途。3.情感目标：通过学习了解人类历史上的部分重要发明，培养爱科学、学科学的思想。重点难点1.重点：一般过去时的被动语态。2.难点：运用一般过去时的被动语态来讨论某件物品的发明时间及用途。教学准备PPT课件，1b，2a，2b的录音教学过程Step1Lead-in1.First,showthestudentssomepicturesaboutfourgreatinventionsofancientChina.2.Thenshowthestudentssomepicturesaboutmoderninventions.Ask:Doyouknowwhattheseinventionsare?Doyouknowwhotheseinventorsare?3.Getthestudentstomatchtheinventionswiththerightinventors.4.Presentthefollowingsentences.Bellinventedthefirsttelephonein1876.Thefirsttelephonewasinvented(byBell)in1876.KarlBenzinventedthefirstcarin1886.Thefirstcarwasinvented(byKarlBenz)in1886.J.L.Bairdinventedthefirsttelevisionin1925.Thefirsttelevisionwasinvented(byJ.L.Baird)in1925.5.Getthestudentstopracticethesentences.Andthenmakesentenceswiththesentencestructures.Step2Workon1aLookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1-4](1=first,4=last).Checktheanswersonebyone.Answers:4213Step3PairworkTalkaboutwithyourpartner.A:IthinktheTVwasinventedbeforethecar.B:Well,IthinktheTVwasinventedafterthecar.A:Ithinkthecalculatorwasinventedbeforethecomputer.B:Well,Ithinkthecalculatorwasinventedafterthecomputer.Step4Listening1.Listenandmatchtheinventionswiththeyears.Checktheanswersonebyone.Answers:dacb2.Listenagainandunderlinethesentenceswithpassivevoice.Payattentiontotheirstructure:was/were+及物动词的过去分词.3.Explain.年份的读法：两个数字一组，分为前后两组1865eighteensixty-five1989nineteeneighty-nine千年的读法:2000twothousand2001twothousandandone前两个数字不为零，后两个数字为零：1800eighteenhundred1900nineteenhundred非四位数的年份的读法:531fivehundredandthirty-oneStep5PairworkWorkon1c.StudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepicturein1bwereinvented.Thenchangerolesandpracticeagain.A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.Step6Listening1.Listenandnumbertheinventions[1-3]intheorderyouhearthem.Checktheanswers.Answers:3122.Listenagainandcompletethechartbelow.InventionsWhatisit/aretheyusedfor?shoeswithspecialheels______thestyleoftheshoesshoeswithlightsseeing__________hotice-creamscoop_________reallycoldice-creamChecktheanswersonebyone.Answers:changing;inthedark;serving3.Explain:stylen.样式；款式instyle流行的,时髦的outofstyle过时的thestyleof………的样式/款式4.Listenagainandpayattentiontothestructure“beusedfor”.Step7PairworkMakeconversationsusingtheinformationin2b.A:Whataretheshoeswithlightsusedfor?B:They’reusedforseeinginthedark.Step8Role-playtheconversation1.Showthestudentsapictureandask:What’sthis?(Zipper.)Wherecanyouseeit?(Pants,trousers,bags,backpacks,shoes,suitcases,etc.)Role-playtheconversation.2.Readthepassagequicklyandanswerthequestions.(1)Whoinventedthezipper?(2)Whenwasthezipperinvented?(3)Whenwasitusedwidely?Checktheanswersonebyone.Answers:(1)ItwasinventedbyWhitcombJudson.(2)Itwasinventedin1893.(3)Itwasusedwidelyaround1917.3.Readandtranslate.(1)拉链是在1893年被惠特科姆·贾德森发明的。Thezipper________________________WhitcombJudson________1893.(2)但是在那个时候，它还没有被广泛使用。But_______________________,it________________widely.Answers:(1)wasinventedby,in(2)atthattime,wasn’tused4.Role-playtheconversation.(1)Readthedialoguealoudforafewminutesbyyourself.(2)Role-playingroups.(3)Role-playinfrontoftheclass.5.Showthestudentssomepicturesaboutsomecrazyinventions.Step9Homework1.Previewthepassagein3a.2.Lookupsomeinformationaboutsomefamousinventions.当堂达标Ⅰ.根据句意及汉语提示完成单词。1.Theclothesinthatstoreareindifferent________(样式)．2.Pleasetrythis________(网站)．Ithinkit’sfantasticforbeginners.3.You’dbettermakea_______(清单)beforeshoppingtosavetime.4.Dr.Wilson,couldyoupleasegiveabriefintroductionaboutyour_______(项目)?5.Mr.Blacktoldmenotto________(提到)thatbadnewsatthemeeting.Ⅱ.单项选择。1.Thiskindofcupisused________drinking.A.to B.as C.by D.for2.Mymotherandmysisterkeptontalking,butmyfather________silentallthetime.A.got B.kept C.turned D.looked3.Ithinktheshortstory_______byLuXun.A.iswriting B.wroteC.written D.waswritten4.—Who_______theelectriclightlamp_______?—Edison.A.was;invented B.is;inventedC.was;inventedby D.did;inventedbyIII.句型转换。1.Thepersonalcomputerwasinventedin1976.(就画线部分提问)______________thepersonalcomputer_______?2.TheshoeswithlightswereinventedbyJulieThompson.(就画线部分提问)______________theshoeswithlights_____________?答案：Ⅰ.1.styles2.website3.list4.project5.mentionⅡ.1.D2.B3.D4.CIII.1.Whenwas,invented2.Whowere,inventedby板书设计UNIT6Whenwasitinvented?S