2018-2019学年高中英语三维设计人教版浙江专版必修2：unit3sectionⅰwarmingup

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1、Unit3如何保护青少年上网安全已成为人们普遍关注的问题，“网络保姆”的总裁就此提出了自己的看法。幵启快賦字2之旅ComputersUsingappstoprotectteens,kidsonlineMostkidshavecellphonesortablets（平板）andaretextingorusingsocialmediaallthetime.Expertssaythatparentsshoulduseappstowatchoutfortheirchildren'sonlineactivity・Acco

2、rdingtoasurvey,70percentofU.S・leenscarrycellphones,andRussWarner,theCEOofNetNanny,isinthebusinessofprotectingkidsonline.Hisbestadvicetoparentsistoknowwhatisoutthereandtoplaninadvance・uPutaplanintoplacebecausekidsliketofeelprotected,”Warnersaid.“Theyliketofee

3、llikeMomorDadishelping：Accordingtoanotherstudy,almost90percentofchildrenhaveseencyberbullying（网络欺凌）inthelastyea匚However,Warnersaidonly50percentofparentstalkwithkidsaboutavoidingtheseexperiences.“Thatmeanstheotherhalfdon'tandthafsaproblem,”hesaid.Warneroftens

4、peakstoparentgroupsconcernedaboutkeepingtheirteenssafe,uOftentimes（时常地）ifwecan'tcontrolorwedon'tunderstandsomething,weavoiditandwecantdothatanymore・”Hesaidparentsneedtotalktotheirchildrenaboutonlinedanger,andthentheyneedtousesafetysoftware.Parentsshouldknoww

5、hoistryingtocommunicatewiththeirchildrenandwhattheyarewatchingonline・Warneraddedparentsalsoneedtounderstandphonesettings（设置）.iPhonesettingscomewithrestrictions（卩艮制）thatareeasytoset.Parentscanenablerestrictionswithacodethattheyknow,andtheirchilddoesnot.Parent

6、scanalsosetphonestonotallowappstobedownloadedwithoutapasscode・Section,IL_WarmingUp&Reading一Pre-reading点点释疑——把课文读懂［原文呈现］［读文清障］WHOAMI?①overtime经过漫长的时间；随着时间的推移，在句中OvertimeIhavebeenchangedQuitealot1・Ibeganasacalculating2"machineinFrancein1642・AlthoughIwasyoungIc

7、ouldsimplify"difficultsums1・IdevelopedveryslowlyandittooknearlytwohundredyearsbeforeIwasbuiltasananalyticalmachinebyCharlesBabbageJ・AfterIwasprogrammed*byanoperator2whousedcardswithholes,Icould“think"作状语，句子用现在完成时。②calculate/'kaeIkjuIelt/vt.计算calculator/'kael

8、kjulelta/n.［C］计算器calcukitionz［U］计算③simplify/'slmpllfal/^r.简化④sum/sAm//?.总数；算术题；金额asumofmoney一笔空天⑤此句使用了固定句式：Ittakes+时间段+before..."过了多久才……”。logically®andproduceananswer©programv.编写程序n.（计算机）程序quick