《Unit4AmazingScience》SectionCneeds1period.Themainactivityis1a.Learningaimsanddemands:1.Goonlearningtheobjectcomplements.2.Knowtheimportanceofthecomputerandmakerationaluseofthecomputer.3.Knowsomereadingskills.Teachingprocedure:Step1LeadinandPre-reading1.Showfourpictures,andaskstudentswhatthingtheycanseeineachpicture.“computer”T:Wecanseecomputerseverywhere.Isthereacomputerinourclassroom?(Yes.)Doyoulikeplayingcomputergames?Whatdoyouthinkofcomputers?2.Haveabrainstorming.Computersarevery-----(interesting,useful,important,helpful,popular,harmful,common---T:Ithinkcomputersareveryhelpful.TheycanhelpuslearnEnglishwords.3.Leadtothenewwordsandaskstudentstomaster“doubt”,“cancel”,“connect”andthenewphrase“nodoubt”.Step2While-reading1.Letstudentsskimandgetthemainideaof1ain10seconds.(Tellstudentstograspthetopicsentence,thetopicsentenceisalwaysthefirstsentenceorthelastsentence)Computershavebecomeveryimportant.2.Letstudentsreadfastandfindoutthetopicsentenceofeachparagraph.(5seconds)Paragraph2:Thereisnodoubtthatcomputersareveryusefulintechnologyandbusiness.Paragraph3:SincetheInternetcameintobeing,People’slivesathomehavechanged,too.Paragraph4:Computershaveimprovedourlives,buttheyhavebroughtproblems,too.3.Letstudentsread1acarefully,andfindoutwhatareasofworkandleisure1amentions.(Payattentiontothekeywords.)4.Letstudentsread1aagain.(1)Listento1a,andcompletethetablebelowaccordingto1a.PlaceTheuseofcomputersInspaceInhospitalsInfactoriesInbusinessAthome(2)Findoutthekeysentencesof1a,Theteacherwritesthemdownontheblackboardandhelpsstudentsunderstandthem.Forexample:1Thereisnodoubtthatcomputersareveryusefulintechnologyandbusiness.2---tinycomputersinsidepatients’bodiescankeeptheirheartsbeatingnormally.3Theyarealsomakingtheworkplacesaferandbetter.4---andtheyusethemtoplaygamesandwatchmovies.5TheInternetismakingtheworldsmaller,likeavillage.Step3Post-reading1.letstudentsretellthetextaccordingtothetableabove.Ifnecessary,askstudentstoretellthetextonebyone.Finish1a.2.Discussingroupsandlisttheadvantagesanddisadvantagesofthecomputers.(Besides1a,thestudentscanaddtheirownideas.3.Showtwopicturestothestudentsandaskstudentstogivethemsomeadvice.Andletstudentsusetheobjectcomplements.Forexample:Iadvisehimnotto---Ithinkitharmfultospendtoomuchtimeonthecomputers.Step4HomeworkWriteacompositionaboutcomputers.
