Unit 13 We are trying to save the earth教案.docx
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Unit13Wearetryingtosavetheearth教案
Unit13We’retryingtosavetheearth!
教学目标：
话题Topic：
环境保护（Protectingtheenvironment）
功能Functions：
能谈论环境污染和环境保护问题（Talkaboutpollutionandenvironmentalprotection）
We’retryingtosavetheearth.
Theriverusedtobesoclean.
Theairisbadlypolluted.
Tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.
语法复习：
Reviewofkeystructures
能正确区分和使用以下语法结构：
现在进行时、usedto、被动语态、现在完成时、情态动词等
Wearetryingtosavetheearth.
Theriverusedtobesoclean.
Itwasconsideredthenicestriverintown.
Weshouldhelpsavethesharks.
词汇和常用表达Words&expressions
1.能正确使用下列词汇（Curriculumwords）
bottom,fisherman,coal,advantage,industry,law,gate,bottle,president,work,metal,ugly,wooden,plastic,cruel,harmful,scientific,litter,cost,afford,recycle
2.能正确使用下列常用表达（Usefulexpressions）
beharmfulto,atthetopof,thefood,chain,takepartin,turnoff,payfor,takeaction,throwaway,putsth.togooduse,pull…down,upsidedown,bringback
3.能认读下列词汇（Non-curriculumwords）
takeaway,bin,shark,fin,chain,ecosystem,reusable,transportation,napkin,inspiration,iron,creativity
学习策略Strategies
1.借助文章标题和插图对阅读篇章内容进行合理的预测
2.能在阅读中借助上下文语境和构词特征猜测部分词汇的含义
文化知识Culture
了解环境污染情况问题和如何保护环境
SectionA1（1a-2d）
Learningobjectives:
1.Tolearnandtalkaboutairpollution,wastepollutionandwaystosolvetheproblems.
2.Tolearntousethesentencepatterns.
usedto...butnow…
shoulddosth.
3.Tomasterkeywordsandphrases:
litter,bottom,fisherman,coal,ugly,advantage,cost,wooden,plastic,makeadifference,leadto,insteadof
I.Warmingup
Showthepicturestomakesomecomparisonandtellstudentstheearthispolluted
now.
Forexample:
（1）Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.
（2）Factoriesputwasteintotheriver.
（3）Peopleshouldthrowawaylitterinthebin.
（4）Therearemorecarsontheroad.
Learnsomenewwords.
II.Workon1a
Herearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.
loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephones
noisepollutionairpollutionwaterpollution
____________________________________
____________________________________
____________________________________
____________________________________
III.Listening
1.Workon1b.Listenandcompletethesentences.
Whatwastheproblem?
Theriverwas_____________.Eventhebottom（底部）oftheriverwasfullof________.Therewerenomore______forfishermen（渔民）tocatch.
Whatcausedtheproblem?
Peoplearethrowing_______intotheriver.Factoriesareputting______intotheriver.
Howshouldtheproblembesolved?
Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.
2.Listenagainandanswerthefollowingquestions.
1）WhatdoesTonywanttodolaterthisafternoon?
HewantstogoswimmingwithMarkintheriverlaterthisafternoon.
2）Howwastheriverinthepast?
Itusedtobesoclean.Ithasbeenthenicestriverinthistown.
3.原文展示
usedtodosth.“过去常常……”表示过去习惯性的动作但如今已不存在。
playapartindoingsth.“参与做某事;在做某事上起作用”。
IV.Practice
1.Role-playtheconversationin1c.
Mark:
Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.
Tony:
Butitusedtobesoclean!
Mark:
Yes,butpeoplearethrowinglitterintotheriver.
Tony:
Everyoneinthistownshouldplayapartincleaningitup!
2.Makeconversationsaboutkindsofpollutionin1a.
3.Workingroups.Eachgroupchooseatopicin2a.Saythewordsorphrasesrelatedtothetopiconebyone.
V.Listening
1.Workon2a.Listentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.
A.landpollutionB.airpollution
C.noisepollutionD.waterpollution
2.Workon2b.Listenagainandcompletethesentences.
1）Theairisbadlypollutedbecausethereare___________ontheroadthesedays.
2）Factoriesthatburncoalalso________theairwithalotofblacksmoke.
3）Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.
4）Peoplearealsolitteringin______________likeparks.Thisisturningbeautifulplacesintougly（丑陋）ones.
Thinkabout:
Whatelsecancausethetwokindsofpollutioninlife?
3.原文
Payattentiontothesentences.
VI.Practice（Workon2c）
Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.
Jason:
Theairhasbecomereallypollutedaroundhere.I’mgettingveryworried.
Susan:
Yes,Iusedtobeabletoseestarsinthesky.
Jason:
Theproblemisthat…
VII.Discussion
Askstudentstodiscusstheirideasforsolvingtheairpollution/wastepollutionproblem.
Ⅷ.Workon2d
1.Read2dandcompletethechart.
Problems
Solvingproblems
airpollution
takethebus,subwayorrideabikeinsteadofdriving
wastepollution
bringabagtogoshopping
nevertakewoodenchopsticksorplasticforkswhenbuyingtakeawayfood
throwrubbishinthebins
2.Completethesentences.
Whatshouldwedo?
1）Weshouldtake_______or_______insteadofdriving.
2）Weshouldalso__________________.It’sgoodforhealth!
3）Bring_______togoshopping.
4）Nevertake_________________or__________whenbuyingtakeawayfood.
5）______________inthebinsandkeeppublicplacescleanandbeautiful.
3.Role-playtheconversation.
Ⅸ.Languagepoints
1.We’retryingtosavetheearth!
我们正在竭尽全力拯救地球!
trytodo=tryone’sbesttodo尽力去做某事
【语境应用】翻译句子
我们将努力在一周内完成这项工作。
We’ll try tofinishtheworkinaweek.
【拓展】try相关短语:
trydoingsth.试着做某事
tryon 试穿
tryout 尝试；试验；试试
【语境应用】用try短语的适当形式填空。
1）Iwenttothetailor’sto_________mynewsuit.
2）Let’s_________yourmethod.Itseemsverygood.
3）Ithinkyoushould_____________toimproveyourEnglish.
4）Letme____________thestory.
让我试着讲一讲这个故事吧。
Keys:
tryon,tryout,tryyourbest,trytelling
2.It’sgoodforhealthanditdoesn’tcostanything!
costv.花费；使付出
指花费金钱，主语通常是物。
cost的过去式和过去分词均为cost。
sth.costssb.somemoney某物花费某人多少钱
【语境应用】翻译句子
1）王先生花了200元买了新衬衫。
ThenewshirtcostMr.Wang200yuan.
2）新电脑花了多少钱？
Howmuchdoesthenewcomputercost?
辨析pay,take,cost&spend
take
花费时间,常用于ittakessb.sometimetodosth.这一句型中，其中it作形式主语
spend
花费时间和金钱，主语通常是人，常用搭配：
spend…onsth.和spend…（in）doingsth.
pay
花费金钱，主语通常是人，常用搭配：
payfor
cost
表示花费金钱或值（多少）钱，主语通常是物，常用搭配：
sth.cost（s）（sb.）somemoney.
【语境应用】根据句意用take,spend,pay或cost的适当形式填空。
1）Thatnewcar________ themlotsofmoney.
2）Mona________50yuanonthebooksjustnow.
3）Itusually_______ meanhourtodomyhomework.
4）Youshould________ sometimepractisingyourpronunciation.
5）Mybrother_______ 3,000yuanforthenewcomputeryesterday.
Keys:
cost,spend,takes,spend,paid
3.…,weshouldtakethebusorsubwayinsteadofdriving.
辨析instead&insteadof
【语境应用】选用instead或insteadof填空。
1）We’llhaveteainthegarden________inthehouse.
2）Givemethegreenone_________theredone.
3）Herauntstayedathome_________swimminglastSunday.
4）Ididn’thaveapen,soIusedapencil_______.
5）You’llhavetoaskZhangLi________me.
Keys:
insteadof,insteadof,insteadof,instead,insteadof
4.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!
1）makeadifference（to…）
（对……）产生重大影响或作用
【拓展】
makenodifferenceto对……没有影响
makesomedifferenceto对……有一些影响
e.g.Itmakesnodifferencewhetheryouacceptorrefusehim.
Theseaairhasmadesomedifferencetoherhealth.
【语境应用】根据汉语意思完成下列句子（每空一词）。
1）你是去是留对我都无所谓。
Itdoesn’t___________________tomewhetheryougoorstay.
2）学习驾驶时，若有一位好教练指导，效果则大不相同。
Whenyou’relearningtodrive,havingagoodteachermakes
_______________________.
Keys:
makeanydifference ,abigdifference
2）leadto 导致
e.g.Eatingtoomuchsugarcanleadtohealthproblems.
【链接】
leadsb.to... 带领某人去……
e.g.HispetdogLuckyledustohishousejustnow.
【语境应用】根据汉语意思完成英语句子，每空一词。
1） 工作太多、休息太少常常导致疾病。
Toomuchworkandtoolittlerestoften________________illness.
2） 昨天那个男孩带领他们去了那家超市。
Theboy________________________thesupermarketyesterday.
Keys:
leadto,ledthemto
Ⅹ.Summary
writeto... 给……写信
thebottomoftheriver 河底
throwlitterintotheriver 往河里扔垃圾
cleanup... 把……打扫干净
land/air/noise/waterpollution土地 / 空气 / 噪音 / 水污染
turn...into... 把……变成……
cutdownairpollution 减少空气污染
insteadof 代替
begoodfor... 对……有好处
takeawayfood 外卖食品
keeppublicplacescleanandbeautiful保持公共场所干净美观
makeadifference 影响；有作用
leadto 带来；导致
Ⅺ.Exercises
Ⅰ. 根据句意及提示，补全句中所缺单词。
1. C canbeusedtoproduceelectricity.
2.Thenewcar c alotofmoney,butitwascertainlyworthit.
3.Thereisa w bed,atableandtwochairsinthissmallroom.
4.Itisaverycleancity.Youwillhardlyfind l whenyouwalkalongthestreet.
5.Myuncleisagreat f andhecaughtfourfishthismorning.
6.Somecupsintheshopareniceandexpensiveandtheothersare u andcheap.
7.Livinginthisstreethasalotofa .Theonlydrawback（弊端）isnoise.
Ⅱ. 根据句意选择方框中恰当的短语填空。
1.Whatamess!
Youshould____________yourroomnow.
2.Everyfarmerknowsthatweather____________farming.
3.Asweallknow,smokingtoomuchcan____________cancerandmanyotherillnesses.
4.Hesaidhewould____________uswhenhelefthomebutwehaven’theardfromhimsofar.
5.Themanageraskedmeto____________thereport,becausehedidn’twanttospeaktoolongatthemeeting.
Ⅲ. 完成句子，每空一词。
1. 牛奶对孩子们的健康有好处。
Milk___________________________children’shealth.
2. 辛迪，请记得帮我寄信。
升级会员 