沪教版七年级下册英语Unit6 Electricity情态动词语法课件（可编辑完整版）

主题范畴：人与自然；人与社会主题群：环境保护；科学与技术子主题：环境污染及原因，环保意识和行为；科学技术与工程，人类发明与创造Section2GrammarLearningobjectivesUnderstandthemeaning,characteristicsandusageofmodalverbs.Summarizeandexploreavarietyofsentencepatternsofmodalverbstoimprovethelogicandcriticalityofthinking.Cooperatewithothersactivelytocompletelearningtaskstogether.010203FreeTalkPresentationPracticeProductionHomeworkReviewfridge[frɪdʒ]yogurt

[ˈjɒɡət]battery[ˈbætəri]tablet[ˈtæblət]airconditioner[ˈeəkəndɪʃənə(r)]televisionset[ˈtelɪvɪʒnset]videogame[ˈvɪdiəʊɡeɪm]FreeTalkPresentationPracticeProductionHomeworkReviewAfteritgotdark,mylittlebrotherBennyandIcouldonlyreadandwrite__________________.Daisy[ˈdeɪzi]Benny[ˈbɛni]

bycandlelight[baɪˈkændllaɪt]烛光下

bylightbulb[baɪˈlaɪtbʌlb]灯泡下FreeTalkPresentationPracticeProductionHomeworkReviewWeusually____________togetheronFridaynights,buttheTVdoesn'twork_________________.watchamoviewithoutelectricitydoesn'tworkwithoutelectricity[wɪˈðaʊt][ɪˌlekˈtrɪsəti]没有电无法运转周五晚上我们通常会一起看电影，但是没有电，电视机无法正常运转。FreeTalkPresentationPracticeProductionHomeworkReviewWeplayedvideogames___________,forawhileranoutof一会儿用完，耗尽于是我们改玩了一会儿电子游戏，但是后来我们的平板电脑没电了。Instead[ɪnˈsted]代替butthenourtablet__________battery.FreeTalkPresentationPracticeProductionHomeworkReviewSincetherewasn'tanyelectricity,somethingsinthe______quickly________.fridgewentbad因为没有电，冰箱里的一些东西很快就坏了。FreeTalkPresentationPracticeProductionHomeworkReviewBynoon,itgotreallyhotinsideour__________,apartmentbutwecouldn’tturnonthe_____________withoutelectricity.airconditioner到了中午，我们的公寓里变得非常热，但是没有电我们不能开空调。FreeTalkPresentationPracticeProductionHomeworkReviewEvenworse,mosthouseholdtasksbecameverydifficultwithoutelectricity.householdtask[ˈhaʊshəʊld][tɑːsk]家务washclothesbyhand更糟糕的是，没有了电大多数的家务变得非常困难。比如，我们不得不手洗所有的衣服，这花费了我们很多时间。doesn'twork无法运转Forexample,wehadtowashallourclothesbyhand,andthistookusalotoftime.FreeTalkPresentationPracticeProductionHomeworkReviewreadandwritebycandlelight.Withoutelectricitycan'twatchamoviedoesn'twork无法运转can'tplayvideogamesThefoodinthefridgequicklywentbad.Wecouldn’tturnontheairconditioner.washclothesbyhand.So,itturnedoutthatitwasveryhardtolivewithoutelectricity.因此，事实证明，没有电我们很难生活。WeneedtoWecanturnontheairconditioner.Wecanwatchamovie.Wecanplayvideogames.FreeTalkPresentationPracticeProductionHomeworkWhatcanwedowithelectricity？

ReviewIfwedon'thaveelectricity,whatwillhappen?can'tcan'tcan'tFreeTalkPresentationPracticeProductionHomeworkReviewModalverbscan、may、must、haveto、should、cannot、maynot...Wecanturnontheairconditioner.Wecanwatchamovie.Wecanplayvideogames.Wecan'tturnontheairconditioner.Wecan'twatchamovie.Wecan'tplayvideogames.FreeTalkPresentationPracticeProductionHomeworkWhichmodalverbsdoyouknow?ModalverbsNegativeformscanmaymustshould……cannotcan'tmaynotmustnotmustn'tshouldnotshouldn'notReview

Must：obligation

表义务Benny:Howwasyourschoolday,Daisy?Daisy:Itwasgreat.Welearntaboutelectricityinourscienceclass.Benny:Canyoutellmewhatyouknowaboutelectricity?Daisy:Wecan'tseeitpoweringeverydaythingsbutwecanseeitwhenthereisalightningstorm.Benny:Right.Mumtoldmewemustn'tgooutdoorsduringastorm.It'sdangerous.Daisy:Yes,that'sright.However,youcanproduceelectricitysafelybyrubbingaruleragainstyoursweater.Lookatme!Benny:Wow.That'sfun!MayItry?Daisy:Yes,ofcourse.Butyoumustgiveitbacktomebecauseit'smyfavouriteruler!Can：ability

表能力May：permission表请求Think:1.whatdoesthemodalverbsmeanineachsentences？DaisyistellingherbrotherBennyabouthersciencelesson.Readtheirdialogueandpayattentiontothewordsinbold.FreeTalkPresentationPracticeProductionHomeworkReviewBenny:Howwasyourschoolday,Daisy?Daisy:Itwasgreat.Welearntaboutelectricityinourscienceclass.Benny:Canyoutellmewhatyouknowaboutelectricity?Daisy:Wecan'tseeitpoweringeverydaythingsbutwecanseeitwhenthereisalightningstorm.Benny:Right.Mumtoldmewemustn'tgooutdoorsduringastorm.It'sdangerous.Daisy:Yes,that'sright.However,youcanproduceelectricitysafelybyrubbingaruleragainstyoursweater.Lookatme!Benny:Wow.That'sfun!MayItry?Daisy:Yes,ofcourse.Butyoumustgiveitbacktomebecauseit'smyfavouriteruler!FreeTalkPresentationPracticeProductionHomeworkThink:2.Whatistheformoftheverbsaftermodalverbs？seegoproducetrygive情态动词+动词原形ReviewBenny:Howwasyourschoolday,Daisy?Daisy:Itwasgreat.Welearntaboutelectricityinourscienceclass.Benny:Canyoutellmewhatyouknowaboutelectricity?Daisy:Wecan'tseeitpoweringeverydaythingsbutwecanseeitwhenthereisalightningstorm.Benny:Right.Mumtoldmewemustn'tgooutdoorsduringastorm.It'sdangerous.Daisy:Yes,that'sright.However,youcanproduceelectricitysafelybyrubbingaruleragainstyoursweater.Lookatme!Benny:Wow.That'sfun!MayItry?Daisy:Yes,ofcourse.Butyoumustgiveitbacktomebecauseit'smyfavouriteruler!FreeTalkPresentationPracticeProductionHomeworkThink:3.Canwechangecanintocould，mustintohaveto？ReviewFreeTalkPresentationPracticeProductionHomeworkReviewCouldyougivemeahandwiththisbox?你能帮我搬一下这个箱子吗? CanIhelpyou?我可以帮你吗?Tips:can和could都可以表示请求许可，但could比can更加迟疑不决，没有把握得到允许或需要委婉表达时就用could.DistinguishCan/Could表示请求许可Tips:Haveto和must都用于表示义务，区别如下:haveto“不得不，必须”,含有由于客观条件而不得不去做之意。含有“不得不”或“被迫”之意。Distinguishmust/haveto表示义务1.Ihavetoseethedoctortomorrow.我明天得去看医生。(我生病了，不得不去)2.Youmuststopaskingyourfatherformoney.你不能再向你父亲要钱了。

(我认为那样做不好)Daisy:Thankyou,Dad.Itisthebestgiftintheworld!Dad:You"（1）

nameyourrobotnow.Daisy:IthinkI'llcallhim"Bobo".Dad:That'sagoodname.Daisy:How（2）

turnhimon?Dad:Firstyouhavetoputthebatteriesinsidehere.Thenyou（3）

switchiton.Nowyou（4）

talkwith"Bobo".Bobo:Hello.Pleasegivemeaname.Daisy:Hello.I'llnameyou"Bobo"Bobo:Ilovemyname,thankyou.Dad:Bobo,pleasetelluswhatyou（5）

do.Daisygotarobotforherbirthday.Completetheconversationwith

can,can't/cannot,may,maynot,must,mustnt/mustnot.can/maycan/maycancan/maycanFreeTalkPresentationPracticeProductionHomeworkReviewBobo:I（6）

danceandsingandplayfootball.（7）

playchess

andI（8）

speakChinese,EnglishandFrench.Daisy:Wow!You（9）

helpmewithmyhomeworkthen.Bobo:Ifyouhavequestions,you（10）

askme.Butyou（11）

do

yourhomeworkyourself.Daisy:OK.I'llgoswimmingintheafternoon.(12)

youcomewithme?Bobo:Sorry.（13）

swim.（14）

stayawayfromwater.IfIgetwet,I'llbecomeillandwon'tworkanymore.Soyou（15）

putmeinthewater.Dad:Daisy,herearetheinstructionsfor"Bobo".You（16）

readthemverycarefullyandfindoutwhatyoucanand（17）

do.Bobo:Letmereadthemoutforyou,master....cancancancanmay/cancannot/can'tcanmustmustmustcannot/can'tmust

not/mustn't/cannot/can'tFreeTalkPresentationPracticeProductionHomeworkReviewFreeTalkPresentationPracticeProductionHomeworkIngroups,think

aboutthedosanddon’tsinthefollowingplaces.libraryclassroomparkcinemahospitalReviewFreeTalkPresentationPracticeProductionHomeworkExampleInlibrary,wemustkeepquiet.Wemustn’tmakenoise.Besides,Wecan’tanwerthephones,weshouldsetourphonesonmute.What’smore,don’teatordrinkinthelibrary.ReviewDos(1)Youmustbepolitetoyourclassmatesandteachers. (2)