高中英语Unit3ComputersSectionⅣ课时作业新人教版.docx

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1、Unit3　SectionⅣGrammar—现在完成时的被动语态Ⅰ.单句语法填空1．Morethan100famousfilmshave_been_shown(show)inthecitysinceJuly.2．Sinceyourworkhas_been_finished(finish),youcanhavearestnow.3．Howmanycarshave_been_made(make)inthefactorysince1990?4．Threenewschoolshave_been_opened(open)inourcityinthepastfiveyears.5．

2、It'sthefirsttimethattheoldcomputerhas_been_checked(check)sinceIboughtit.6．Greatchangeshave_taken(take)placeinmyhometownandyoucanseethatalotoffactorieshave_been_set(set)up.7．Theirnewcarshave_been_advertised(advertise)ontheInternetforalongtime.8．Alltheathleteshave_been_selected(select)from

3、millionsofpeoplealloverthecountryinthepasttwomonths.9．Anewlibraryandagymnasiuminourschoolhave_been_set(set)upsofarandtheywillbeputintouseverysoon.10．Agreatmanymachineshave_been_produced(produce)bythefactorysincethetechnologicalrevolution.Ⅱ.阅读理解Forayearandahalf,kidssenthurtfulmessageslike

4、“Youaresougly.”or“Whyareyoustillalive？”toRebeccaSedwick.In2013,Rebecca,then12,couldn'tstanditanymore.ShejumpedtoherdeathnearherhomeinFlorida.Soonafterward,TrishaPrabhureadaboutthestory.“Iwassurprisedandheartbroken，”saysTrisha,now15,whoisfromNaperville,Illinois.“IknewthatIhadtodosomething

5、tostopthisfromeverhappeningagain.”Trishadidsomeresearch.StudiesshowthatonefourthtohalfofallteensintheU．S.havebeencyberbullied(网络欺凌).Expertssaythatifyouareeverbulliedonline,youshouldtellatrustedadult.Tellthecyberbullytostop,andpreventhimorherfromcontacting(联系)youagain.Printandsavemessages

6、tosharewiththepolice.Thisisgoodadvice,agreesTrisha.Butthesemethodsalltakeplaceafterthebullyinghasalreadyhappened.Trishahadadifferentidea.Whynotteachcyberbulliestostopbeforetheypostthesemessages?Trisha'sresearchwhoawards,includingaprizeintheGoogleScienceFair.Then,TrishabuilttheReThinkapp(

7、应用软件).Itisprogrammedtorecognizewordsorphrasesthatcouldbehurtful.Whenthathappens,differentwarningmessagescomeout.“Don'tsaythingsthatyoumayregretlater！”saysonemessage.Othersask,“Areyousureyouwanttosaythis？”and“Arethesewordsreallyyou？”NowTrishaisworkingonaversion(版本)ofReThin