Unit 6 Listening and Speaking听说课 课件2024-2025学年沪教版（2024）英语七年级下册

Unit6ElectricityeverywhereListeningP88Whatdoyouknowaboutelectricity?Think1Howmuchdoyouknowaboutelectricity?Discuss

thequestionsinpairs.P88Interestingfactsaboutelectricity(1)Iselectricityaninventionoradiscovery?(2)Howfastdoeselectricitytravel?(3)Istheelectriccaranewidea?Whenwasitfirstinvented?“发明；创意”，指发明出世界上原来不存在的事物。“发现；发觉”，强调发现已存在但尚未被人所知的事物、地方、思想。P882Listentoapodcastaboutelectricityandtick(✓)thetopicsmentionedinit.(1)Whofirstdiscoveredelectricity(2)Howweproduceelectricitytoday(3)Howelectricitytravelstoourhome(4)Whenthefirstelectriccarwasinvented(5)HowmuchelectricityiswastedeachyearintheUKandtheUSAGoodevening.Thanksforjoiningmeinthisweek'sTheNaturalWorld.I'm

Rebecca.Tonight,I'llsharesomeinterestingfactsaboutelectricitywithyou.Firstof

all,asyoumayalreadyknow,electricitywasnotinvented.Itwasdiscovered.Butdoyouknowwhenitwasfirstdiscovered?Manybelievethatelectricitywas

firstdiscoveredbytheAncientGreeksmorethan2,500yearsago.Theyproduced

electricitybyrubbingfuragainstsmoothstone!Next,doyouknowhowfastelectricitytravels?Theansweris:thespeedoflight!Thatis,about300millionmetrespersecond!Anotherinterestingfactisaboutelectriccars.Theyareverypopularnow,buttheideaisnotnew.BritishinventorRoberAndersoninventedthefirstelectriccararound1832.However,thiscarwasnotveryuseful.Itwasn'tpossibletodriveelectriccarsuntilthesecondhalfofthe19thcentury.Finally,wearealwaystryingourbesttomakegooduseofthisenergy,butaccordingtoareport,billionsofpoundsofelectricityiswastedeverysingleyearintheUK.

AndanotherreportshowsthatintheUSA,about30%oftheelectricityusedinofficeseachyeariswasted.Thisjustshowshowimportantitistosaveelectricityinourdailylives.That'sallfrommetoday.Ihopeyouenjoyedlearningabitmoreaboutelectricity.听力材料Activity23Listenagainandcompletethenotes.P88smoothstonelightthefirstelectriccarthesecondhalfofthe19thcenturybillionsofpoundsofficesGoodevening.Thanksforjoiningmeinthisweek'sTheNaturalWorld.I'm

Rebecca.Tonight,I'llsharesomeinterestingfactsaboutelectricitywithyou.Firstof

all,asyoumayalreadyknow,electricitywasnotinvented.Itwasdiscovered.Butdoyouknowwhenitwasfirstdiscovered?Manybelievethatelectricitywas

firstdiscoveredbytheAncientGreeksmorethan2,500yearsago.Theyproduced

electricitybyrubbingfuragainstsmoothstone!Next,doyouknowhowfastelectricitytravels?Theansweris:thespeedoflight!Thatis,about300millionmetrespersecond!Anotherinterestingfactisaboutelectriccars.Theyareverypopularnow,buttheideaisnotnew.BritishinventorRoberAndersoninventedthefirstelectriccararound1832.However,thiscarwasnotveryuseful.Itwasn'tpossibletodriveelectriccarsuntilthesecondhalfofthe19thcentury.Finally,wearealwaystryingourbesttomakegooduseofthisenergy,butaccordingtoareport,billionsofpoundsofelectricityiswastedeverysingleyearintheUK.AndanotherreportshowsthatintheUSA,about30%oftheelectricityusedinofficeseachyeariswasted.Thisjustshowshowimportantitistosaveelectricityinourdailylives.That'sallfrommetoday.Ihopeyouenjoyedlearningabitmoreaboutelectricity.听力材料Activity34Whatotherinterestingfactsaboutelectricitydoyouknow?Sharethemwithyourclassmates.......YourideasP88Human'sfirstcontactwithelectricitywaselectricfish.Ourbraintransmitssignalsthroughelectricity.BrooklynBridge(inNewYork)wasthefirstbridgepoweredbyelectricity.SpeakingTelevisionAirConditionerWashingMachineHairDryerWhatelectricalappliances(电器)doweuseinourdailylives?...Howcanweuseelectricitysafelyandwisely?ThinkP91S1:Weusedifferentelectricalappliancesinourhomesevery

day.

Howcanweusethemsafely?S2:Weneedtomakesurethatthecables

(n.电缆)

areconnected

correctlybeforeweturnonthedevice.Andwemustn't

touch

anyelectricalapplianceswithwethands.S1:That'sright!Also,wecannotuseanybrokencables....Talkinpairsaboutsafetyrulesforusingdifferentelectricalappliances.Lookattheexampleandusethetipsbelowtohelpyou.TalkingaboutusingelectricitysafelyP91Improvingyourpronunciation英语中一个元音音素可构成一个音节。一个元音音素和一个或几个辅音音素结合也可以构成一个音节。只有一个音节的单词称为单音节词；有两个音节的单词称为双音节词；有三个及三个以上音节的单词称为多音节词。音节take词尾的e并未发音，所以都是单音节词。eau三个元音字母在一起，但只发一个元音，仍然算一个音节。英语辅音音素中/l/是响音，它和辅音音素结合，也可构成音节。单音节词：I

/aɪ/

hi

/haɪ/

take/teɪk/双音节词：pencil/ˈpensl/

unit

/ˈjuːnɪt

多音节词：beautiful

/ˈbjuːtɪfl/Englishwordscanbedividedintosyllables.Howmanysyllablesdothefollowingwordshave?______________________________________________________Listenandrepeat.P91safepowercomputersupermarketelectricityCompletethetablewiththewordsbelow.Separatethemintosyllableswithhyphens(-).P91cabledangerous exerci