Unit6Grammar语法课件沪教版(2024)七年级英语下册(1).pptx

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Unit6Grammar语法课件沪教版(2024)七年级英语下册(1).pptx

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UNIT6ElectricityeverywhereGrammar

LearningobjectivesUnderstandthemeaning,characteristicsandusageofmodalverbs.Summarizeandexploreavarietyofsentencepatternsofmodalverbstoimprovethelogicandcriticalityofthinking.Cooperatewithothersactivelytocompletelearningtaskstogether.010203

FreetalkWhatcanelectricitydo?

ItcanlightthehouseWhatcanelectricitydo?ItcanworkthetrafficlightsModalverbs

①Definition：Modalverbscanbeusedtotalkaboutability,permission,obligation,etc.DaisyistelingherbrotherBennyabouthersciencelesson.Readtheirdialogueandpayattentiontothewordsinbold.andthentrytoanswerthefollowingquestions.(1)Whatistheformoftheverbsaftermodalverbs？(2)whatdoesthemodalverbsmeanineachsentences？(3)Canwechangecanintocould，mustintocould？PresentationWhat’sthemodalverbsanditsusage？

Must：obligation表义务Benny:Howwasyourschoolday,Daisy?Daisy:Itwasgreat.Welearntaboutelectricityinourscienceclass.Benny:Canyoutellmewhatyouknowaboutelectricity?Daisy:Wecantseeitpoweringeverydaythingsbutwecanseeitwhenthereisalightningstorm.Benny:Right.Mumtoldmewemustntgooutdoorsduringastorm,Itsdangerous.Daisy:Yes,thatsright.However,youcanproduceelectricitysafelybyrubbingaruleragainstyoursweater.Lookatme!Benny:Wow.Thatsfun!MayItry?Daisy:Yes,ofcourse.Butyoumustgiveitbacktomebecauseitsmyfavouriteruler!Can：ability表能力May：permission表请求PresentationThink:1.whatdoesthemodalverbsmeanineachsentences？

Aftermodalverbssuchascan,mayandmust,weusethebaseformofaverb.Weusecanandcannot(cant)tosayweareableorunabletodosomething.Weusemayandmaynottoaskfor,giveandrefusepermission.Inlessformalsituations,somepeopleliketousecanandcannot(cant)forthesamepurpose.Weusemustandmustnot(mustnt)totellpeoplewhattodoorwhatnottodo.Letssumuptherules!··