七年级英语下册Module3NaturalelementsUnit5Water(第2课时)课件新版

Unit5Water第2课时(kèshí)ReadingModule3Naturalelements广东(guǎngdōng)学导练七年级下册配上海教育版第一页，共21页。Unit5Water第2课时(kèshí)Read课前预习一、根据汉语意思补全下列句子，每空一词1.I’m________________________________________（一滴水）.2.I________________________________________（穿过管道）underthestreetsandnowI’mhere.3.________________________________________（记得不要浪费(làngfèi)）orpolluteme.4.Isthis______________________________(终点）yourjourney?5.________________________________________（是……的时间了）peopletocleanme.adropofwatertravelledthroughthepipesRemembernottowastetheendofIt’sthetimefor第二页，共21页。课前预习一、根据汉语意思补全下列句子，每空一词adr二、汉译英1.水龙头是开着的。________________________________________________2.多拉环顾四周，但是那儿一个人都没有。________________________________________________3.他们将我清理干净(gānjìng)并且加入一些化学物质。________________________________________________4.我将会进入河里，并再一次进入海里。________________________________________________5.多拉关上了水龙头，离开了浴室。________________________________________________Thetapwason.Doralookedaround,buttherewasnoonethere.Theycleanedmeandaddedsomechemicalstome.I’llgointotheriverandthenintotheseaagain.Doraturnedthetapoffandcameoutofthebathroom.第三页，共21页。二、汉译英Thetapwason.Doralooke要点精讲【1】“Turnthattapoff,”saidanangryvoice.一个愤怒的声音说道：“关掉那个水龙头。”【用法】turnoff“关掉；关闭”，反义词是turnon“打开”。注意：off/on是副词，其后接名词(míngcí)时，名词(míngcí)放在off/on的前后均可，接代词时，必须放在turn和off/on的中间。【例句】Thelightisabittooharsh.Pleaseturnitoff.那灯光有点太刺眼，请把它关掉。It’stimeforthenews.PleaseturnontheTV.新闻时间到了，请打开电视机。第四页，共21页。要点精讲【1】“Turnthattapoff,”【拓展】（1）turnon=switchon，意为“拧开（电器）；打开（水源、煤气、电源等）”。Pleaseturnontheradio.请把收音机打开。（2）turnoff=switchoff，意为“关掉（电器）；关上（水源、煤气、电源等）”。HaveyouturnedofftheTV?你关电视(diànshì)了吗？（3）turnup意为“调高（音量或热度）”。Iturnedthevolumeup.我把音量调大了。（4）turndown意为“调低（音量或热度）”。Hekeptturningthecentralheatingdown.他不断地调低中央暖气系统的温度。第五页，共21页。【拓展】第五页，共21页。【应用】（1）你能把电视声音(shēngyīn)调低一点吗？Canyou______________theTVabit?（2）当你离开房间时要关灯。______________thelightswhenyouleavetheroom.【2】DoyouknowwhereIcomefrom?你知道我是从哪儿来的吗？【用法】此句含有由where引导的宾语从句，whereIcomefrom在整个句子中作宾语，where之后用陈述句语序。where之后有时也可直接接动词不定式，并可与相应的宾语从句互换。turndownTurnoff第六页，共21页。【应用】turndownTurnoff第六页，共21页。【例句】Iknowwhereyourhomeworkis.我知道你的作业在哪里。CanyouguesswhereTomisgoingtonextmonth?你能猜猜汤姆下个月去哪儿吗?Doyouknowwhereweshouldgonext?=Doyouknowwheretogonext?你知道下一步我们(wǒmen)该去哪里吗？【应用】（）Idon’tremember______thebookyesterday.A.wheredidIput B.whereIputC.whereIshouldputB第七页，共21页。【例句】B第七页，共21页。【3】Thenitwastimeforpeopletocleanme.然后到人们(rénmen)清洁我的时间了。【用法】It’stime（forsb.）todosth.意为“是（某人）做某事的时间了；（某人）该做某事了”，相当于It’stimeforsth.。【例句】It’stimeforustohaveclass.=It’stimeforclass.到上课的时间了。【应用】（）It’stimeforthestudents______attheschoolgate.A.gathering B.togather C.gatherB第八页，共21页。【3】Thenitwastimeforpeople课堂练习一、用所给单词的适当形式(xíngshì)填空1.“Turnthattapoff,”Tomsaid__________（angry）.2.Thewater__________（drop）intoariverandranintoareservoirfromthecloud.3.Itwastimeforstudents________（clean）theirdesks.4.Remember__________（notwaste）thewater.5.Wecannotlivewithoutwater,soitisvery__________（value）.6.Idrankalotofwaterbecausethedishwasvery__________（salt）.angrilydroppedtocleannottowastevaluablesalty第九页，共21页。课堂练习一、用所给单词的适当形式(xíngshì)填空7.MarieCurieisoneofthegreatest__________（chemical）intheworld.8.Thedish__________（be）toosweetifweaddmoresugar.9.There__________（be）somemilkandtwoapplesinthefridge.10.Havingabathuses__________（much）waterthantakingashower.chemistswillbeismore第十页，共21页。7.MarieCurieisoneofthe二、阅读(yuèdú)理解Doyouknowhowtherainforms?Therainiswater.Mostofthewaterintheworldisinoceans,riversandlakes.Thetiny（极小的）waterintheaircomesfromthere.Doyouknowhowthishappens?ThewatercycleoftheEarthbeginswithachangeintemperature.WhentheSunheatstheEarth,waterfromoceans,lakesandriversevaporates（蒸发）.Itturnsintovapourandrisesintotheair.Finally,cloudsformandthewaterdropsbacktotheEarthasrain.Therainflowsintorivers,oceansorlakesagain.Thisisthewatercycle.第十一页，共21页。二、阅读(yuèdú)理解第十一页，共21页。Condensation（冷凝(lěngníng)）alsoplaysanimportantroleinthewatercycle.Theairfarupintheskyisverycold.WhenthewarmairrisesfromtheEarthandmeetsthecoldair,alotofdroplets（小水滴）form.Thisiscondensation.Whenthewaterdropsaretooheavytobeintheair,theyfalloutofthecloudsasrain.TherainrunsintotheEarth’soceans,riversandlakes.Thenthecyclestartsalloveragain!（）1.Wheredoesthetinywaterintheaircomefrom?A.Therain. B.Thevapour.C.Theoceans,riversandlakes. D.TheSun.C第十二页，共21页。Condensation（冷凝(lěngníng)）a（）2.______isanecessaryprocessforthewatercycle.A.Thevapour B.CondensationC.Therain D.Theclouds（）3.Whatmakesthewatercyclebecomepossible?A.Theriver. B.TheSun.C.Thechangeintemperature. D.Therain.（）4.Whentheraindropsandrunsintotheoceans,riversorlakes,______startsalloveragain.A.thecondensation B.thedropletsC.thewatercycle D.theevaporationBCC第十三页，共21页。（）2.______isanecessar课后作业一、根据教材(jiàocái)P59的课文内容，补全下面短文，每空一词Doratalkedtoa1.__________ofwaterinthe2.__________.ThedropofwatertoldDoratoturn3.__________the4.__________becauseshewaswastingwater.IttoldDoraitsstory.Itwasina5.__________,thendroppedintoariverandranintoareservoir.People6.__________some7.__________toittomakeitclean.Afterthat,ittravelledthroughthe8.__________underthestreetsandcametoDora’shome.Waterisvery9.__________,soitaskedDoranottowasteor10.__________it.dropbathroomofftapcloudaddedchemicalspipesvaluablepollute第十四页，共21页。课后作业一、根据教材(jiàocái)P59的课文内容二、选择(xuǎnzé)填空（）1.Riversandlakesmightdry________insomeplaces.A.out B.off C.up （）2.—Theteacherlooksvery________.—Yes.Heislooking________atJim.What’swrong?A.angry;angrily B.angrily;angrily C.angrily;angry（）3.—Whynotcleanthewashroom________thewastewater?—That________likeagoodidea.A.in；looks B.at；sounds C.with；soundsCAC第十五页，共21页。二、选择(xuǎnzé)填空CAC第十五页，共21页。（）4.—Yourmotherwas________justnow.Whathappened?—Iforgottoturn________thetapafterbrushingmyteeth.A.angry；on B.pleased;on C.angry;off（）5.—Ann，youshouldn’t________yourtimewatchingTV.Youshouldgoanddoyourhomework.—OK，Dad.Iwill________theTV.A.waste;turnon B.use；turnup C.waste；turnoff（）6.—Wouldyouliketogotothecinemathisevening?—________.A.No,thanks B.Idon’tthinksoC.Yes,I’dlovetoCCC第十六页，共21页。（）4.—Yourmotherwas_____（）7.Thesoupisnotsweetenough.Please________some________it.A.add;sugarto B.add；sugarin C.add；salton（）8.—Insummer,itisverycooltogo________theforest.—Thatisright.ButIliketoswim________theriverintheafternoon.A.through；across B.across；throughC.through；cross（）9.—Thedriverdrives________fast.—Yes，________isdangeroustodothat.A.abit；that B.alittle；that C.abit；itAAC第十七页，共21页。（）7.Thesoupisnotsweete（）10.—Bill，yourroomissodirty.Canyoutidyit________?—OK，I________doitatonce.A.up；will B.on；can C.off；must三、阅读(yuèdú)理解Everybodywantstobehealthy.Herearethreepiecesofadviceforyoutokeephealthy.First,foodisveryimportant.Therearemanykindsofhealthyfood.Youcanhavebananas,apples,orangesandtomatoesbecausefruitandvegetablesaregoodforyou.Butdonoteattoomuchchocolateorcandy.TheyarenotA第十八页，共21页。（）10.—Bill，yourroomissohealthyfood.Healthyfoodhelpsyougrowhealthilyandmakesyoustrongandhappy.Thereisasaying,“Anappleadaykeepsthedoctoraway.”Second,sportscanalsohelpyoukeephealthy.Youwillfeelrelaxedandcomfortableafterdoingsportssuchasplayingbasketball,runningorswimming.Sportscanhelpyoubuildyourbody.Third,goodhabitsarehelpful,too.Gotobedearly,getupearlyanddrinkmorewatereveryday.Don’tbelazy.Rememberallthesethingsandyouwillbehealthyandhappy.第十九页，共21页。healthy