UnitFourTheVirtualWorldTeachingObjectives1.SsshouldgraspthemainideaoftextA——Despitethemanynegativeeffectsofvirtuallife,theauthorprefersittoreallife.2.Ssshouldunderstandthestructureofthetext——Contrastbetweenvirtuallifeandreallife.3.LearnsomerulesofinterpretingnewvocabularyandusagerelatedtocomputersandtheInternetinEnglish4.Graspthekeylanguagepointsandgrammaticalstructuresinthetext.TheFirstTwoPeriods(90minutes)PartI.ReviewofUnitThree(10minutes)PartII.IntroductoryRemarks:1.AskSstoanswerthefollowingquestions:(15minutes)1)Doyoulikesurfingonline?Howlongdoyouspendonlineeveryday?2)Whatdoyouusuallydoonline?——checkingemail,chattingwithfriends,acquiringinformation,readingandwatchingnews,watchingfilms,purchasing,etc.3)WhatdoyouthinkaretheadvantagesanddisadvantagesoftheInternet?——advantages:Lifebecomesmoreconvenientwiththehelpoftheinternet.=1\*GB3①Wecancommunicatewithrelativesandfriendsthroughemail,QQ,MSNdespitethedistancebetweenus.=2\*GB3②Wecanacquireinformation,news,knowledgemorequickly.=3\*GB3③wecanpurchasesomeitemsweneedwithacheappriceonlinewithoutgoingout.——disadvantages:=1\*GB3①Harmfulinformationalsospreadrapidly.Virusspreadquickly.=2\*GB3②Somestudentsareindulgeinnet-gamesandlotsofprecioustimeiswasted.=3\*GB3③Cyber-loveappearswhichisnotreal.=4\*GB3④SomepeopleconductillegalaffairsandcheatingthroughtheInternet.=5\*GB3⑤somekindofcriminalssuchashackers’crimes.2.ListenandappreciatethepoemSurfingtheInternet(10minutes)Youarenottheonlyonewholikessurfingthenet,mostofthepeoplenowadayslikeloggingontotheweb.Thefollowingpoemtellsustheexperienceandfeelingofanemployeewhosurfsthenetinhiscompany.1)Listenandexplanationofthepoem2)TasksSsthefollowingquestions:=1\*GB3①Whatwastheherodoingwhenhisbosscamein?(SurfingtheInternet)=2\*GB3②Howdidheactinfrontofhisboss?(Hepretendedtobesurprisedatthecomputerwhichhadcrashed“unexpectedly”.3.Nowyoumayguessoutwhatwearegoingtotalkintheunit.It’ssomethingabouttheInternet.HereI’dliketosharewit