1、Unit13We'etryingtosavetheearth!一、教學(xué)目標(biāo)：1. 語言知識目標(biāo)基本詞匯:litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway基本詞組:beharmfulto,atthetop(ofsth.),takepartin,turnoff,基本句型:We'retryingtosavetheearth!Theriverusedtobesoclean.Theairisbadlypolluted.2. 技能目標(biāo)：能正確運用現(xiàn)在進行時，現(xiàn)在完成時，被動語態(tài)，情態(tài)動詞和use

2、dto句型。3情感目標(biāo)：有環(huán)境危機意識，學(xué)會關(guān)注環(huán)境保護環(huán)境。二、教學(xué)重難點：(1) 能正確運用現(xiàn)在進行時，現(xiàn)在完成時，被動語態(tài)，情態(tài)動詞和usedto句型。(2) 保護環(huán)境的措施方法。SectionA1(1a-2d)I. PresentationShowthepictureoftheearthandtellstudentstheearthispollutednow.Forexample:(1)Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.(2) Factoriesputwasteintotheriver.(3) Peopl

3、eshouldthrowawaylitterinthebin.(4) Therearemorecarsontheroad.Learnsomenewwords.II. Workon1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephoneswaterpollutionnoisepollutionairpollu

4、tionIII.Listening1.Workon1b.Listenandcompletethesentences.Whatwastheproblem?Theriverwas.Eventhebottom(底部)oftheriverwasfullof.Therewerenomoreforfishermen漁民)tocatch.Whatcausedtheproblem?Peoplearethrowingintotheriver.Factoriesareputtingintotheriver.Howshouldtheproblembesolved?Weshouldwritetotheandaskth

5、emtothefactories.Everyoneshouldhelptotheriver.2.Listenagainandanswerthefollowingquestions.1) WhatdoesTonywanttodolaterthisafternoon?HewantstogoswimmingwithMarkintheriverlaterthisafternoon.2) Whydoesn'tMarkwanttogowithTony?Becausetheriverwasreallydirty.Eventhebottomoftheriverwasfullofrubbish,andt

6、herewerenomorefishforfishermentocatch.3) Howwastheriverinthepast?Itusedtobesoclean.Ithasbeenthenicestriverinthistown.IV. Practice1. Role-playtheconversationin1c.Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butitusedtobesoclean!Mark:Yes,butpeoplearethrowinglitterintotheriver.Ton

7、y:Everyoneinthistownshouldplayapartincleaningitup!V. Languagepoints1. We'retryingtosavetheearth我們正在竭盡全力拯救地球！trytodo=tryone'sbe努t力去故某事?！具\用】我會盡力做好這項工作。We'lltrytofinishtheworkinaweek.2. Herearesomewordsrelatedtodifferentkindsofpollution.berelatedto與有關(guān)e.g.Isthedriverrelatetotheaccident?司機和這起

8、事故有關(guān)嗎？3. .Eventhebottomoftheriverwasfullofrubbish.Yes,butpeoplearethrowinglitterintotheriver.litter和rubbish都可指“垃圾”，用作不可數(shù)名詞。rubbish指“沒用的東西（被扔或?qū)⒁獊G棄的無用的東西）”不可回收。litter指“室（內(nèi)或公共場所）亂扔的廢物（紙屑、不要的包裝紙、廢瓶等）”還可回收【運用】根據(jù)句意用rubbish或litter完成句子。1. Throwtheout.把垃圾扔出去。2. Theroomisfullof.房間里堆滿了垃圾。3. Pickupyourafterapic

9、nic.野餐后將廢棄物收拾好。rubbish,rubbish,litterVI. Listening1. Workon2a.Listentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.A.landpollutionB.airpollutionC.noisepollutionD.waterpollution2. Workon2b.Listenagainandcompletethesentences.1) Theairisbadlypollutedbecausethereareontheroadthesedays

10、.2) Factoriesthatburncoalalsotheairwithalotofblacksmoke.3) Thereisalsotoomuchrubbishandwaste.Peoplethingseveryday.4) Peoplearealsolitteringinlikeparks.Thisisturningbeautifulplacesintougly(丑陋)ones.Completethesentencesaccordingtothedialogue.1. I_abletoseestarsinthesky,butnowIcanu'setdsteoethemclea

11、rly.be2. Theairreallyaroundtherehasbecomepolluted3. Peoplearealsointhepublicplacesli.ttering4. Thefactoriesthatburnalsotheairwithalotofblacksmoke.coalpollutedVII. Practice(Workon2c)Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.Jason:Theairhasbecomereallypollutedaroundhere.I&

12、#39;mgettingveryworried.Susan:Yes,Iusedtobeabletoseestarsinthesky.Jason:TheproblemisthatVIII. DiscussionAskstudentswhatweshoulddotosavetheearth.Helpstudentsanswer,turnoffthelightswhenyouleavearoom;stopridingincars;stopusingpapertowelsornapkins;recyclebooksandpaper.X.Languagepoints1.It'sgoodforhe

13、althanditdoesn'tcostanything!costv.花費；使付出指花費金錢，主語通常是物。cost的過去式和過去分詞均為cost。e.g.ThenewshirtcostMrWang200yuan.王先生花了200元買了新襯衫。Howmuchdoesthenewcomputercost?新電腦花了多少錢？辨析take,spend,pay&costtake，spend，pay和cost都可以表示“花費”，但它們的用法各有不同。1) take多表示花費時間，常用于Ittakessb.sometimetodosth這一句型中，其中it作形式主語。e.g.Itusual

14、lytakesme40minutestocookthedinner.2) spend多表示花費時間和金錢，主語通常是人，常用于sb.spend(s)sometime/moneyonsth禾口sb.spend(s)sometime/money(in)doingsth兩種句型。e.g.Davidspent2,000yuanonthenewmachine.Myfatherspendsanhour(in)watchingthenewsonTVeveryday.3) pay多表示花費金錢，主語通常是人，常用于sb.pay(s)somemoneyforsth.句型。e.g.Tommypaid20yuanf

15、orhisbreakfastyesterday.4) cost多表示花費金錢，主語通常是物，常用于sth.cost(s)(sb.)somemoney句型。e.g.ThenewdresscostLinda80yuan.根據(jù)句意用take,spend,pay或cost的適當(dāng)形式填空。1) Thatnewcarthemlotsofmoney.2) Mona50yuanonthebooksjustnow.3) Itusuallymeanhourtodomyhomework.4) Youshouldsometimepractisingyourpronunciation.5) Mybrother6,000

16、yuanforthenewcomputeryesterday.2. Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!makeadifferenee(to表示(對)產(chǎn)生影響或作用e.g.LearningEnglishwellcanmakeadifferencetoyourfuture.學(xué)好英語會對你的前途有影響【拓展】makenodiffereneeto意為對沒有影響”；makesomediffereneeto意為對有一些影響”。女口：Itmakesnodiffereneewhetheryougotodayortomorrow.Theseaairhasmadesomediffereneetoherhealth.【運用】根據(jù)漢語意思完成英語句子，每空詞數(shù)不限。(1) 那場雨沒對運動會造成重大影響。Thatraindidn'tthesportingme