九年级英语Unit13sectionA1(教育精品).ppt

Unit13Weretryingtosavetheearth.SectionA（1a-2d）The earth is polluted.air pollutionThefactoriesthatburncoalpollutetheairwithalotofblacksmoke.We should stop the factories from polluting the air.Factoriesareputtingwastewaterintotheriver.Weshouldstopfactoriesfromputtingwasteintotheriver.water pollutionlitterv.乱扔乱扔n.垃圾垃圾rubbish/waste/garbage垃圾，废弃物垃圾，废弃物Weshouldthrowlitterintothebinsandkeeppublicplacescleanandbeautiful.waste pollutionnoise pollutionTherearemorecarsontheroad.We should ride our bikes or walk to school instead of driving to school or work1aHere are some words related to different kinds of pollution.Write them in the box below.Then add more words.noisepollution_airpollution_waterpollution_loudmusicplanes/carsmobilephonesfactoriescarssmokingshipsfactorieslitteringrubbishbuildinghousesbuildinghousesloudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephonesListen and answer the questions.1.What does Tony want to do later this afternoon?He wants to go swimming later this afternoon.2.Why doesnt Mark want to go with Tony?Because he was there last weekend and the river was really dirty.3.How was the river in the past?It used to be so clean.1bListen again and complete the sentences.What was the problem?Theriverwas_.Eventhebottom(底部底部)oftheriverwasfullof_.Therewerenomore_forfishermen(渔民渔民)tocatch.reallydirtyrubbishfishWhat caused the problem?Peoplearethrowing_intotheriver.Factoriesareputting_intotheriver.How should the problem be solved?Weshouldwritetothe_andaskthemto_thefactories.Everyoneshouldhelpto_theriver.litterwasteclose downclean upgovernment1cTheriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Butitusedtobesoclean!Yes,butpeoplearethrowinglitterintotheriver.Everyoneinthistownshouldplayapartincleaningitup!Make conversations using the pollution in 1a.A:The river has always been the nicest river in this town.B:Yes,it used to be so clean.A:But I was there last weekend and the river was really dirty.B:What caused the problem?A:People are throwing litter into the river./Factories are also putting waste into the river.B:Yes,everyone in this town should play a part in cleaning it up.A:What should we do?B:We should write to the government and ask them to close down the factories.A:What else can we do?B:Everyone should help to clean up the river.2aListen to the interview.Circle the kinds of pollution that Jason and Susan talk about.A.landpollutionB.airpollutionC.noisepollutionD.waterpollution2bListen again and complete the sentences.1.Theairisbadlypollutedbecausethereare_ontheroadthesedays.2.Factoriesthatburncoalalso_theairwithalotofblacksmoke.morecarspollute3.Thereisalsotoomuchrubbishandwaste.People_thingseveryday.4.Peoplearealsolitteringin_likeparks.Thisisturningbeautifulplacesintougly(丑陋丑陋)ones.arethrowingawaypublicplaces根据句意用根据句意用take,spend,pay或或cost的适当形式填空。的适当形式填空。1.Thatnewcar_themlotsofmoney.2.Mona_50yuanonthebooksjustnow.3.Itusually_meanhourtodomyhomework.4.Youshould_sometimepractisingyourpronunciation.5.Mybrother_6,000yuanforthenewcomputeryesterday.costspenttakesspendpaid用动词的适当形式填空。用动词的适当形式填空。1.Weretrying_(save)theearth.2.Thereusedto_(be)cleanandbeautiful.3.Therearetoomany_for_tocatch(fish).4.Itsbadforenvironmenttouse_(wood)chopsticks.tosavebefishwoodenfishermenWhat should we do to save the earth?Turn off the lights when you leave a room.关掉关掉take the bus to work instead of drivingstop using paper towels or napkins（餐巾，餐巾纸）（餐巾，餐巾纸）recycle books and paper回收利用回收利用1.Whoistheinterviewertalkingto?2.Whataretheytalkingabout?3.Whatotherproblemsdotheysee?SusanandJason.Theenvironmentalproblems.Therestoomuchrubbishandwasteinthestreets.2dRead 2d and complete the chart.ProblemsSolvingproblemsairpollutionwastepollutionwooden(木头的木头的)chopsticksorplasticforksrubbishtakethebus,subwayorrideabikeinsteadofdriving.bringabagtogoshopping.usechopsticksorforksathome.throwrubbishinthebins.Jason and Susan,what are your ideas for solving these problems?Yeah,orrideabike.Thereareotheradvantages(优点优点)ofbikeriding.Itsgoodforhealthanditdoesntcost(花费花费)anything!Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.Great ideas!What about waste pollution?Me,too.Also,Inevertakewoodenchopsticksorplastic(塑料塑料)forkswhenIbuytakeaway(外卖食品外卖食品)food.Iusetheonesathome.Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.So together,our actions can make a difference and lead to a better future!