高中英语 Unit 3《Science versus nature》Grammar and usage教案5 译林版必修5.doc

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

2、cative(表语)andobjectcomplement(宾语补足语)Whentheverb-edformisusedasanattribute,itcanbechangedintoanattributiveclause.Theverb-edformcanalsobeusedasanadverbmodifying(修饰)someverbssuchasstand,sit,lie…etc.toshowthetwoactionshappeningatthesametime.Pleaseidentifythepartsofspeech(词性)oftheverb-edfor

3、mindifferentsentences1)Thehandwrittennotesarefromjack.2)Thekidnapperswereusingastolencar.3)Adark-hairedmanwentintotheroom.4)Thecakewasleftuntouchedonthetable.5)Thegirllaytrappedunderthewreckage(船舶残骸).StepIItheusageofverb-edformThefunctionsofverb-edform1.attribute(定语)1)Asingleverb-edcan

4、appearbeforeanounmodifyingthenounlikeanadjective.Itcanbechangedintoanattributiveclause.Weshoulddrinkboiledwater.=WeshoulddrinkwaterwhichhasbeenboiledTheytooktheinjuredwomantothenearbyhospitalatonce.=Theytookthewomanwhowasinjuredtothenearbyhospitalatonce.6专心爱心用心2)Generallyspeaking(一般说来)

5、,theverb-edformoftransitiveverbs(及物动词)expressespassivemeaningswhiletheverb-edformofintransitiveverbs(不及物动词)expressesactiveandpastmeanings.Someverb-edsbeforenounscanexpresspastmeanings,suchasescaped,retiredandfallen.theescapedcriminal　逃犯pastthedevelopedcountries　发达国家pastawidelyusedlangu

6、agepassivetheretiredscientistpastthehighlypraisedscientistpassivefallenleaves落叶pasttherisensun　升起的太阳pasttheexploitedclasses被剥削阶级passive3)Averb-edphrasecanappearafteranountomodifythenounlikeanattributiveclausedoes.Thenamementionedintheletterwasunknowntome.=Thenamewhichwasmentionedinthel

7、etterwasunknowntome.Thefiremenweretryingtorescuethepeopletrappedinthefire.=Thefiremenweretryingtorescuethepeoplewhoweretrappedinthefire.Scientificexperimentscarriedoutbystudentswithouttheteacher’sinstructionscanbedangerous.=Scientificexperimentswhicharecarriedoutby……4)Averb-edcanbepa