•Howmanycontinentsarethereintheworld?Whatarethey?•Whatdoyouknowabouttheplacewhereyoulive?Lesson38:TheWorldIsaBigPlaceTask-basedReading1.Whatistheproblemtheearthfaces?2.Peoplecanliveonthesevencontinents.()(判断正误)3.Howmuchoftheworldiscoveredwithland?4.Whatislargestpartoftheocean?5.Itmustbetreatedwellforourchidrenandforourchildren'schildren,too.(Translate)Thepopulationisincreasingveryquickly.FOnethird.ThePacificOcean.为了我们的子孙后代我们一定要善待地球.intotalontheearthinthefuturebecoveredwithbetreatedwell•Oncetheworld______________greenplantsandthelivingthingsledapeacefullife____________.However,latersomeanimals_______________andwasevenkilledformoney.Therearenotmany_________.Luckily,peoplearetryingtosavetheanimalsindangernow.Weallhopethatallthelivingthingswillliveapleasantlifeasbefore_____________.wascoveredwithontheearthwerenottreatedwellintotalinthefutureTheearthisourhome.Wemusttakecareofit.Lifetodayiseasierthanitwas__1__yearsago,butithasbroughtsomenewproblems.Oneofthebiggestproblemsispollution.Wecanseeit,smellit,drinkitandevenhearit.Manhaspollutedthe__2__.Themorepeople,themorepollution.Manyyearsago,theproblemwasnotsoseriousbecausetherewerenotso__3__people.Whenthelandwasuseduportheriverwasnotcleaninaplace,manwentto__4__place.Nowmanisslowlypollutingthewholeworld.__5__pollutionisstillthemostserious,it’sbadfor__6__thingsintheworld.Manycountriesdon’tletpeopleburn__7__forairinthehousesandfactoriesinthecity.PollutionbySO2isnowthemostdangerouskindofairpollution.It’scausedbyheavytraffic.Peoplesayit’s__8__toridebikes.Whenyouareriding,thereisnopollution.Butevenindevelopedcountries,mostpeopledon’tgotoworkbybike.It’snotbecausebikesareexpensiveorpeoplearetirediftheyridetowork.It’sbecausethenumberofcarsontheroadsbecomeslarger.Somorepeople__9__theirbikesandgotoworkbycar,thenthingsaregettingworseandworse.Weshouldhavespecialroadsonlyforbikesandmakeit__10__difficultandexpensivefordriverstotaketheircarsintothecitythattheywillgobacktousingtheirbikes.•（）1.A.hundrB.hu...
