（人教版）：必修二（unit3 computers--period4 listening）

1、Period4ListeningTheGeneralIdeaofThisPeriod：ThisperiodincludeslisteningandwritingonPage21；listeningonPage55andlisteningtaskonPage58.Apparently，thepurpo搜索引擎优化fthisperiodistotrainthestudentslisteningforinformation；forcomprehensionandforlanguage.Meanwhile，thestudentswillbetrainedtoexpresstheirownopinion

2、safterlistening.TeachingAims：1.Helpthestudentstolearnabouttheknowledgeofinformationtechnology.2.Enablethestudentstogetthemainideasofthelisteningmaterials.TeachingImportantandDifficultPoints：1.Howtogetthemainideaandinformationindetails.2.Expresstheirownopinionsafterlistening.TeachingMethods：1.Task-ba

3、sedlearning.2.Cooperativelearning.TeachingAids：1.Ataperecorder.2.Amultimedia.TeachingProcedures：Step1RevisionCheckthestudentsinterviews.Getthestudentstoworktogetherwiththeirpartnerstointervieweachother.Step2ListeningandwritingPage21Task1ListentoaconversationT：Class，asweallknow，the21stcenturyisthecen

4、turyofinformationandtechnology.NextwewilllistentoaconversationaboutdifferentkindsofinformationtechnologyorIT.Andasweknow，eachkindofinformationtechnologyhasitsownadvantagesanddisadvantages.Sofromthisconversationwewilllistenfortheadvantagesanddisadvantagesofeachone.Butbeforelisteningletsfirstlookatthe

5、picturesonPage21andtheformonPage22tomakesurewhatyouaregoingtodowhilelistening.OK，letsbegin.Thestudentslistentotheconversationforthefirsttime.Task2DiscussionandfillingT：YoucanseethereareaTV，aCD-ROM，acomputer，aradio，aDVDandnewspaperhere.Nowtrytofinishfillingintheformwiththeinformationyouhavejustgotfro

6、mtheconversation.Suggestedanswers：TypeofITAdvantagesDisadvantagesTVYoucanbothlistenandwatchYoucantwritetofriendsWebYoucanfindinformationItsveryexpensiveRadioYoucanlistentoEnglishYoucannotwatchBookYoucangetinformationSometimesitisout-of-dateT：Now，letsdiscusstheadvantagesanddisadvantagesofeachtypeofIT

7、insmallgroupsandthendecidewhichtypeofITisbestforyoutouse，accordingtotheformaboveandexplainthereasons.Whilediscussing，remembertousethefollowingexpressions：Ithinkthat.Inmyopinion.Ibelievethat.Iagreebecause.Idisagreebecause.Ivedecidedthat.Step3ListeningPage55Thepossiblenumber：Picture1No.3Picture3No.2Pi

8、cture4No.1T：NowpleaselookattheseboxesonPage55beforeyoulistentothetapeagain，andtrytofindoutthelisteningpoints.Paymoreattentiontothesepointsandyoumaymakesomenoteswhilelistening.Threeminuteslater.T：Nowtrytofillintheboxeswiththeinformationfromthelisteningmaterial，andthencheckyouranswerswithyourpartners.

9、Suggestedanswers：PersonalrobotInformationSize35 cmWhatitlookslikeRobotwithfivearmsWhatitcandoAllhomeworkPrice50yuanadayBird-likeandroidInformationSize10 cmWhatitlookslikeBird-likeandroidWhatitcandoSingsbeautifullyPrice600yuanLonelyandroidInformationSize2 mWhatitlookslikeLarge，energeticrobotWhatitcan

10、doClimbsmountains；playsguitar；singskaraokeTelephonenumberRoom-1234Step4ListeningtaskPage58T：NowpleaseturntoPage58，andfinishthelisteningtask.Asweknow，computersareusedwidelyandputintoandroids.Pleaselookatthepicturesabove.Therearetwoandroidsinit.Oneworksasamaid.Theotherworksinacarfactory.Theyarefriends

11、andtheyweremadeatthesametime.Nowtheyaretalkingabouttheirlivesandwhatitfeelsliketobeandroid.OK，pleaselistencarefullytotheirproblemsandfillintheform.Illplaythetapetwice.Afterlistening.T：Trytofillintheformsasquicklyasyoucan，andthenwewillchecktheanswersinclass.SuggestedanswersSallyandBrendasproblemsAbou

12、ttheirjobsTheirprogrammerdecidedthemAboutchangingtheirjobsTheyarenotabletochangejobsAboutwhodecidestheirfutureTheirprogrammerdoesAbouthowtheyaredifferentfrompeopleTheycannotsmell，laugh，taste，oreatfoodAbouthowtheyarethesameaspeopleTheyenjoyfootballT：Fromwhatwehavejustlistened，weknowthatSallyandBrenda

13、havesometroublesintheirlives.Theyaretreatedbadly.Nowyouaregoingtomakealistoftherightsthatandroidsshouldhavesothattheywillbetreatedbetter.Youcanworkwithyourpartnersandhavediscussion.Suggestedanswers：1.Theyshouldbeabletochoosetheworktheydo.2.Theyshouldhavetheirowntime.3.Theyshouldbeabletochangetheirjo

14、bs.4.Theyshouldbeabletodecidetheirownfuture.5.Theyshouldbeabletotaste，smell，feel，etc.Step5AssignmentT：Class，Ireallyappreciateyourgoodperformanceinthislisteningclass.Icanseethatyourlisteninghasgreatlyimprovedsinceyoucametotheseniorschool.Keeponyourgoodwork!OK，wehavenotimeleft.Idliketoassignyousomehom

15、eworktodo.1.GooverthelisteningandwritingonPage21andgetreadyforthewriting.Step6TheDesignoftheWritingontheBlackboardUnit3ComputersPeriod4TypeofITAdvantagesDisadvantagesTVYoucanbothlistenandwatch.Youcantwritetofriends.WebYoucanfindinformation.Itsveryexpensive.RadioYoucanlistentoEnglish.Youcannotwatch.BookYoucangetinformation.Sometimesitisout-of-date.PersonalrobotInformationSize35 cmWhatitlookslikeRobotwithfivearmsWhatitcandoAllhomeworkPrice50yuanadayBird-likeandroidInformati