高中英语 unit 3《science versus nature》grammar and usage教案5 译林版必修5

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1、Unit3《Scienceversusnature》GrammarandusageTeachingobjects:1.Learntheusageofverb-edformandverb-edphrases2.Learnthedifferenceandusageofverb-ingandverb-edasadjectivesTeachingprocedures:StepIIntroductionVerb-edformcanbeusedlikeanadjectiveoranadverbinasentenceservingas(充当)at

2、tribute(定语),predicative(表语)andobjectcomplement(宾语补足语)Whentheverb-edformisusedasanattribute,itcanbechangedintoanattributiveclause.Theverb-edformcanalsobeusedasanadverbmodifying(修饰)someverbssuchasstand,sit,lie…etc.toshowthetwoactionshappeningatthesametime.Pleaseidentifyt

3、hepartsofspeech(词性)oftheverb-edformindifferentsentences1)Thehandwrittennotesarefromjack.2)Thekidnapperswereusingastolencar.3)Adark-hairedmanwentintotheroom.4)Thecakewasleftuntouchedonthetable.5)Thegirllaytrappedunderthewreckage(船舶残骸).StepIItheusageofverb-edformThefunct

4、ionsofverb-edform1.attribute(定语)1)Asingleverb-edcanappearbeforeanounmodifyingthenounlikeanadjective.Itcanbechangedintoanattributiveclause.Weshoulddrinkboiledwater.=WeshoulddrinkwaterwhichhasbeenboiledTheytooktheinjuredwomantothenearbyhospitalatonce.=Theytookthewomanwho

5、wasinjuredtothenearbyhospitalatonce.2)Generallyspeaking(一般说来),theverb-edformoftransitiveverbs(及物动词)expressespassivemeaningswhiletheverb-edformofintransitiveverbs(不及物动词)expressesactiveandpastmeanings.Someverb-edsbeforenounscanexpresspastmeanings,suchasescaped,retiredand

6、fallen.theescapedcriminal　逃犯pastthedevelopedcountries　发达国家pastawidelyusedlanguagepassivetheretiredscientistpastthehighlypraisedscientistpassivefallenleaves落叶pasttherisensun　升起的太阳pasttheexploitedclasses被剥削阶级passive3)Averb-edphrasecanappearafteranountomodifythenounlikean

7、attributiveclausedoes.Thenamementionedintheletterwasunknowntome.=Thenamewhichwasmentionedintheletterwasunknowntome.Thefiremenweretryingtorescuethepeopletrappedinthefire.=Thefiremenweretryingtorescuethepeoplewhoweretrappedinthefire.Scientificexperimentscarriedoutbystude

8、ntswithouttheteacher’sinstructionscanbedangerous.=Scientificexperimentswhicharecarriedoutby……4)Averb-edcanbepartofaco