LifeonMars单元全课时课件10份grammar 2.ppt

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1、LifeonMarsGrammar2Whatdomanypeoplethinkofthelifebytheyear2100?Theybelieve____________________________bytheyear2100.(that)wewillliveontheplanetMarsWhowilldomostoftheworkonMars?Peoplethink_______________________mostofourwork.Andtheyaresure________________timeforth

2、eirhobbies.(that)robotswilldo(that)theywillhaveUsage1Objectclausesintroducedby‘that’Peoplethink(that)robotswilldomostofourwork.Manypeoplebelieve(that)wewillliveontheplanetMarsbytheyear2100.Manypeoplearesure(that)theywillhavemoretimefortheirhobbies.Fromthesentenc

3、es,weknow(that)anobjectclausecanbeputaftersome_______,suchas‘think’,‘believe’,‘know’,oraftersome___________,suchas‘sure’,‘certain’.verbsadjectivesManypeoplebelieve(that)wewillliveontheplanetMarsbytheyear2100.(改为否定句)Whichoneisbetter?Manypeopledon’tbelieve(that)we

4、willliveontheplanetMarsbytheyear2100.Manypeoplebelieve(that)wewillnotliveontheplanetMarsbytheyear2100.√Wealwaysput‘not’before‘think’and‘believe’.Trytofindoutwhetheritisanobjectclauseornot.TheseplantswillproducefoodandoxygenthatweneedtoliveonMars.Scientistswillde

5、velopplantsthatcangrowonMars.PeoplethinkthathumansonMarshavetowearspecialbootstomakethemselvesheavier.WeallknowthatMarsisaplanetinthesolarsystem.ThejourneytoMarscouldtakeonlyaveryshorttimeinspaceshuttlesthattravelathalfthespeedoflight.Somescientistsdonotbelievet

6、hatthejourneytoMarswillbeverycomfortable.CananyplantsgrowonMarsnow?Wedon’tknow/arewondering/arenotsure______________________________________onMars.if/whetheranyplantscangrowManypeoplearesurethatsomeplantscanproduceenoughwateronmars,aren’tthey?No,nobodyissure____

7、______________________________________________onMarsornot.whetheranyplantscanproduceenoughwaterUsage2Wedon’tknow/arewonderingif/whetheranyplantscangrowonMars.NobodyissurewhetheranyplantscanproduceenoughwateronMarsornot.Fromthetwosentences,weknowthatwecanuse_____

8、_or__________tointroduceanobjectclausewhenitexpressesa‘yes/no’question.ifwhetherWhenweseetheword‘or’,wecanonlyuse‘whether’.CananyplantsgrowonMarsnow?Wedon’tknow/arewo