SectionA解析及拓展1

1、SectionA解析及拓展(一) 创设情景，导入新课CreateplotsandscenestoguidethenewlessonThismaincontentistolearntotalkaboutthehistoryanduseofsomeinventionsbycomparinganddiscussingthem.Atthesametimegetstudentstoshowtheiropinionsontheinventions.SowecanadopttheAudiovisualGuidingMethod.First,theteachershowthestudentsapictureo

2、rarealthingofaninvention,suchasthecar,thetelephone,andsoon.Askthestudents,WhatisthiscalledinEnglish?Isitaninvention?Whenwasitinvented?Wasitinventedearlierthan.?Whoinventedit?Whatisitusedfor?etc.Helpthestudentstogettherightanswers.Writethequestionsandanswersontheblackboard.Thenshowsomemorepicturesorr

3、ealthingsofinventions,letthestudentstoaskandanswerafterthemodels.Thengetthestudentstodopairworkandmutualactionswiththetargetknowledge.Whenwasitinvented?Ithinkitwasinventedin.Encouragethemtotalkaboutinventionsasmanyaspossible.(二) 自读感知，整体把握Pre-readtoapperceiveandgraspthewholeThismaincontentistolearnto

4、talkaboutthehistoryanduseofsomeinventionsbydiscussingandcomparingthem,anditisdesignedwithamethodofadvancingstepbystep.In1a-1c,talkaboutwhensomecommoninventionswereinvented.In2a-2c,introducesomepracticalinventionsandtalkabouttheinventorsandforwhattheyareused.In3a-3b,studentsmakealistoffivehelpfulinve

5、ntionsandfiveannoyinginventionsanddiscusstheiropinionsonthem.Part4mustbeworkedingroups.(三) 合作交流，解读探究CooperateandintercoursetounscrambleandresearchThemaincontentinsectionAistolearnthetargetlanguage:Whenwasthecarinvented?Itwasinventedin1885.Whenwereelectricslippersinvented?Theywereinventedlastyear.Who

6、weretheyinventedby?TheywereinventedbyJulieThompson.Whataretheyusedfor?They'reusedforseeinginthedark.Step1演示DemonstrationTheteachercommunicateswiththestudentsaboutsomeinventions.Showapictureofatelephoneorarealone.(TeacheraskWhatisthiscalledinEnglish?(Studentsanswer)Itiscalledatelephone.(Teacheras

7、kIsitaninvention?(Studentsanswer)Yes,itis.(TeacheraskWhenwasthetelephoneinvented?(Studentsanswer)Itwasinventedin./Sorry,Idon'tknow.(TeacheraskDoyouthinkitisaveryusefulinvention?(Studentsanswer)Yes,itis.(TeacheraskWhocantellmewhatitisusedfor?(Studentsanswer)Itisusedformakingtelephonecalls.(Teache

8、rsay§Oh,yes,youarequiteright.Butwhoinventedit,doyouknow?(Studentsanswer)Itwasinventedby.Step2活动ActivitiesShowmorepicturesorrealthingstothestudentsandletthemtalkabouttheinventionsshown.WhatisthiscalledinEnglish?It'scalled.Isitausefulinvention?Yes,itis./No,Idon'tthinkso.Whenwasitinvented?

9、Itwasinventedin.Whatisitusedfor?Itisusedfor.Step3体验Experiences(1) Playthetapeofpart1bandgetthestudentstolistenandmatchtheinventionsandthedateswhentheywereinvented.(2) Playthetapeofpart2aandgetthestudentstolistenandnumbertheinventionsintheorderthattheyhearthem.(3) Playthetapeofpart2aagainandgetthestu

10、dentstomatchtheitemsincolumnsA,BandCinpart2b,finishthelisteningtrainingtaskof2bandmakethestudentsthinkaboutsomeotherpracticalinventions.Step4活动ActivitiesGetthestudentsdopairwork,finishtheteachingtaskoforalintercourseinpart2c.Letthestudentsroleplaytheconversationstructurepracticedinstep2usingtheinfor

11、mationinthechartinpart2b.What'sthiscalledinEnglish?It'scalled.Whowasitinventedby?Itwasinventedby.Whatisitusedfor?Itisusedfor.Step5活动ActivitiesGetthestudentstomakealistoffivehelpfulinventionsandfiveannoyinginventions.Andfillinthechart.Thenstudentsdopairworkinpart3btodiscusstheiropinionaboutth

12、einventionstheyhavelistedinpart3a.Step6想象ImaginationGetthestudentstoimaginethattheyarealoneonatinyisland.Theycanchoosefiveinventionstheywouldliketohaveontheislandwiththem.Letthestudentsdiscusswhattheychooseandwhyingroups.Thenasksomeindividualstoshowtheirideastothewholeclass.要点直击Englishnotes1. Whenwa

13、sitinvented?它是什么时候被发明的？【注意】(1)wasinvented"被发明"，被动语态。(2)invent及物动词，“发明，创造”。【点拨】(1)invent和discover都是及物动词。invent意为"发明，创造"，指事物从无到有；而discover意为"发现"，指事物从"未知”到"已知”。(2)英语动词有两种语态即主动语态(theActiveVoice)和被动语态(thePassiveVoice)。主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。例如：Manypeoplesp

14、eakEnglish.(主动语态)Englishisspokenbymanypeople.(被动语态)【应用】用invent和discover的正确形式填空。 Edisoninventedthelight. Thesecretwasdiscoveredbyhim.2. It'susedrfscoopingreallycoldicecream.【注意】beusedfor.被用于,【点拨】beusedforsth/doingsth被用于某物/做某事；beusedassth被当作某物使用。例如：Knivesareusedforcuttingthings刀是用来切割物体的。Thestickis

15、usedasaruler.这根木棒被当作尺子使用。应用Clothesareusedforkeepingwarm.衣服用于保暖。Theboxisusedasatable.这箱子被当作桌子用。3. ItwasinventedbyChelseaLanmon.它是ChelseaLanmon发明的。【注意】beinventedbysb被谁发明【点拨】介词by用于被动句中，意为"被，由、靠"，后接动作的执行者。例如Thetreewasplantedbyus.那棵树是我们栽的。应用Riceisgrownbyfanners.大米是农民生产的。ThewindowwasbrokenbyLiLe

16、i.窗子是李雷打破的。4. shoeswithadjustableheels可调整后跟的鞋。【注意】with介词，此处意为"有，具有，带有"。介词短语withadjustableheels作后置定语修饰shoe&例如：agirlwithbigeyes大眼睛的女孩。【应用】Chinaisacountrywithapopulationofover1.2.billion.中国是一个有13亿多人口的国家。Hainanisanislandwithbeautifulscenery.海南是一个具有美丽风景（scenery）的岛屿。5. helpfulinventions有用的发明

17、annoyinginventions令人烦恼的发明【注意】helpful形容词，"有帮助的，有用的"，-ful是形容词后缀。例如：useful,careful,forgetful,thankful,etc. annoying形容词，"讨厌的，烦恼的"，-ing亦可作形容词后缀。例如：interesting,exciting,moving,etc. invent动词，"发明，创造"；invention名词"发明"；inventor名词，"发明家，创造者”。【应用】用invent的相关形式填空。Edisonw

18、asagreatAmericaninventorHeinventedover1,000inventionsallhislife.6. I'dliketohavearadiobecauseIcouldlistentomusicallday.我想拥有一台收音机，因为这样我可以整天听音乐。【注意】becauseIcouldlistentomusicallday是原因状语成句。allday整大，整日【点拨】because,since,as,for都可表示原因，because意为"因为"，引导原因状语从句，构成句子的主要部分，表示主从句之间有必然的因果关系，可回答why问句。

19、since,as均为从属连词；而for是并列连词，for分句只位于句末，前面有逗号，该分句是对前一分句所述情况作推测性的说明，解释。day的相关短语：allday一整大；oneday将来或过去的某一天；someday将来某一天；theotherday前两天。【应用】（1）用because,since,as,for填空。 Marymissedthetrainbecauseshearrivedlate. Itwillrain,fortheskyisdark. As/Sinceweliveneartheriver,wecanoftengoswimminginsummer.（2）用day的相关短语完成

20、句子 Iwillmakeacomputerathomeoneday/someday. Mrleehasworkedallday,soheisverytired. Theotherday/Oneday,Imetoneofmyoldfriendsintown.（四）应用迁移，巩固提高Applicationandtransfer;consolidationsandimprovement1. Haveacompetitionaboutthehistoryofinventions.Duringthepasttwoorthreehundredyears,peoplemademanyusefulinvent

21、ions.Theyhavechangedourlifealot.Weholdacompetitiontofindoutwhoknowsthemostaboutinventions.Theteachermayorganizethestudentstodothisactivity-designingthefollowingquestionsforthestudentstoanswer.What'sthenameofthisinvention?Whenwasitinvented?Whomwasitinventedby?Whatisitusedfor?Etc.Thisactivitycanhe

22、lpthestudentspracticethestructureofthePassiveVoiceandknowmoreaboutinventions.Haveadiscussionaboutone'sfavoriteinvention.Organizetheactivitylikethis:Dividetheclassintosixoreightgroups,thestudentsinagroupsittogethertotalkaboutwhatistheirfavoriteinventionandwhy.Thenaskonestudentfromeachgrouptoshowh

23、isopiniontothewholeclass.Thisactivitycannotonlybuildupstudents'confidencetospeakEnglish,butalsoencouragethemtostudyhardtomakesomethingusefulinthefuture.（五）课堂跟踪反馈TrackingfeedbackinclassI.根据汉语提示完成句子1. HaiKouisabeautifulcitywith（具有）aninterestingflowermarket.2. Thecomputerisoneofthemostusefulinventi

24、ons（发明）3. Thenewlymademachineisoperated（操作）byarobot.4. Becareful.thetrafficisheavy（拥挤的）5. Shoeswithadjustable（可调整的）heelsare.usedforchanging（改变）thestyleofashoe.用所给词的适当形式填空6. Theused（use）plasticbagsarestilluseful（use）.7. Emmaisterriblyill,sheneedsanoperation(operate)atonce.8. Jimwastold(tell)tobeontim

25、eforthemeeting.9. Itisourdutytoclean(clean)uptherubbisharound.JulieThompsonistheinventor(invent)ofbatteryoperatedslippers.m.单项选择(C)11.Mikeisaperson_agoodmemory.inB.ofC.withD.has(B)12.Thiskindofmetalisusedplanes.asmakeB.formakingbymakingD.formade(D)13.Hisideawillhelp_theproblem.solveB.tosolveC.solvin

26、gD.bothAandB(B)14.Wemuststartearly,_wehavealongwaytogo.becauseB.forC.sinceD.as(C)15.Englishisused_aforeignlanguageinChina.forB.byC.asD.of(C)16.Somepeoplethinkthealarmclockisaninvention.annoyB.annoyedC.annoyingD.interested(D)17.Wherecanoldinventionsbeseen?Inashop.B.Inaschool.A.A.C.A.A.A.A.A.C.A.A.A.C

27、.Inafactory.D.Inamuseum.(D)18.Hetriedhisbesttodoeverything,tomakehisyoungersisteragain.laughingB.tolaughC.laughsD.laugh(D)19.Whichinventiondoyouthinkismorehelpful,thecomputerthecar?andB.soC.butD.or(C)20.Haveaniceday!Notatall.B.You'rewelcome.You,too.D.Notbad.W.根据所给的汉语意思，完成句子21.茶叶产于中国南方。Teaisgrown

28、insouthChina.22. 灯泡是最有用的发明之一。Thelightbulbisoneofthemostusefulinventions.23. 英语被广泛地用于不同国家之间的贸易。Englishiswidelyusedforbusinessbetweendifferentcoutries.24. 电话是什么时候发明的？Whenwasthetelephoneinvented?25. 中国是一个拥有许多重要发明的大国。Chinaisabigcountrywithlostofinventions.V.Wearefamiliarwithcomputers-computerswork26_usathome,inoffices,infactories.Butitis27.truethatmanychildrentodayareusingcomputersatschool28iheycanwrite.29doesthismeanforthefuture?30thesech