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ID:52245885
大小:1.04 MB
页数:70页
时间:2020-04-03
《2012高中英语 5.1同步导学课件 外研版必修1 新课标 (山东专版).ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、SectionⅠIntroduction&ReadingandVocabularyStepOne:WarmingupDoyoulikedoingscientificexperiments?Whatshouldyoupayattentiontowhenyouarecarryingoutanexperimentinalab?_________________________________________________________________________________________
2、_______________________________________________________答案:Carryingoutanexperimentinalabisverydangerous.Youmustbecarefulanddotheexperimentunderyourteacher’sguidance.StepTwo:FastreadingReadthetwopassages(P44-45)quicklyandanswerthefollowingquestions.1.W
3、hatshouldweknowwhenweusemetals?________________________________________________________________________答案:Weshouldknowhowmetalsreactwithdifferentsubstances.2.Whatwillhappentocopperwhenitiskeptinwater?__________________________________________________
4、______________________答案:Noreaction/Nothing.3.Whyisoiladdedtothewater?________________________________________________________________________答案:Tokeepairoutofthewater.4.Whatistheuseofthecottonwoolinthetesttube?_______________________________________
5、_________________________________答案:Keepingairdry.StepThree:CarefulreadingReadthetext(P44-45)carefullyandchoosethebestanswers.1.Whichofthefollowingmetalsreactsmostwithwater?A.Copper.B.Iron.C.Aluminium.D.Sodium.答案:D2.AccordingtoPassageA,whichofthefoll
6、owingreactsmosteasilywhenitisheatedinoxygen?A.Aluminium.B.Iron.C.Steel.D.Copper.答案:A3.Wecanknowfromtheexperiment________.A.howironrustswithoilB.ironisquiteeasytorustC.howwecanpreventironfromrustingD.howironreactswithalltheothersubstances答案:C4.Ifsomec
7、leanironnailsarekeptinawetplaceforaweek,thenailswill________.A.rustB.notrustC.formanoxideD.keeptheplacedry答案:A5.Thispassagemainlytalksabout________.A.allkindsofmetalsB.whatkindofmetalreactsmostC.thedifferentreactionsofmetalsD.howmetalsreact答案:CStepFo
8、ur:SummaryDifferentmetalshavedifferentuses.Whenweusemetals,itisimportanttoknowhowtheyreactwithdifferent1.____________.The2.____________ofmetalswiththesesubstancescanbeputinorder.Fromthetable,wecanfindpotassiumreactsthemostwithoxygenandwaterwhilecoppe
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