外研版（2019） 必修第二册 Unit 1 Food for Thought Using language课件.pptx

B2U1FoodforthoughtGrammar:Modals(1)

Whattypeofverbistheoneinboldineachofthefollowingsentences?YuanLongpingworkedallhislifeontheresearchofhybridrice.YuanLongpingwillliveintheheartsoftheChinesepeopleforever.YuanLongpingistheprideoftheChinesepeople.WecanneverpraiseYuangLongping’scontributionstoomuch.Typesofverbsactionverbhelpingverb(linkingverb)(modalverb)动词分类：行为动词：系动词：助动词：情态动词：可独立作谓语，分为vt.和vi.需接表语不单独做谓语，构成时态和语态？

Modals(情态动词)表达情感、态度、语气。need;dare(dared);hadbetter;beableto;haveto;can(could);may(might);must;will(would);shall(should);oughtto;usedto,etc.后接动词原形，适用于各种人称和数（haveto除外）。I/You/We/He/Theymust/can/should/mayworkhard.具有词义，不单独做谓语，可构成简略答案。--Ican’tswim.Canyouswim?--No,Ican’t.

Activity2:Underlinethemodalsinanintroductiontoanappandtalkabout

theirmeanings.

havetheabilitytodosth.beafraidofsth.benecessaryorgivestrongadvicetodosth.notbenecessarytodosth.giveadvicetodoornottodosth.

Activity3:Completethetipsforgoodtablemannerswiththecorrect

formofthemodalsinActivity1.

havetodarenothadbetterneedn’tbeableto

UsemodalstointroducetablemannersinChina.Youhavetowaituntiltheeldersstarttoeat.You’dbetternotstickyourchopsticksintotherice.You’dbetternotmaketoomuchnoisewhilechewing.

IwillbeabletospeakJapaneseinanotherfewmonths.再过几个月，我就能讲日语了。Theywereabletoescapefromthebuildingwhenthefirebrokeout.火灾发生时，他们设法从那栋建筑里逃了出去。1.beableto“能够”用于过去时态时，可表示“某人过去成功做了某事”。

1.beableto“能够”ShecansingEnglishsongswell.HewillbeabletosingthissonginEnglishinafewmonths,too.Ifhegothereafewhoursearlier,Icouldsavehim.Luckily,hewasabletoescapefromthebigfireintheend.=Luckily,hemanagedtoescapefromthebigfireintheend.=Luckily,hesucceededinescapingfromthe