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

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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