九年级英语Unit 13 We are trying to save the earth教案.docx

九年级英语Unit 13 We are trying to save the earth教案.docx

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九年级英语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.

Theriverusedtobesoclearn.

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

课时划分：

Period1SectionA11a-2d

Period2SectionA23a-3b

Period3GrammarFocus-4c

Period4SectionB11a-1e

Period5SectionB22a-2e

Period6SectionB33a-SelfCheck

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。

ThenewshirtcostMrWang200yuan.

2）新电脑花了多少钱？

Howmuchdoesthenewcomputercost?

辨析pay,take&spend

take

花费时间,常用于ittakessb.sometimetodosth.句型中。

在这一句型中，it作形式主语。

spend

花费时间和金钱，主语通常是人，常用于sb.spend（s）sometime/moneyonsth.和sb.spend（s）sometime/money（in）doingsth.两种句型。

pay

花费金钱，主语通常是人，常用于sb.pay（s）somemoneyforsth.句型。

【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,spendtakes,spend,paid

3.…,weshouldtakethebusorsubwayinsteadofdriving.

辨析instead&insteadof

• Insteadadv.“代替；反而”，在句中作状语。

•insteadof“代替；而不是”，后接名词、代词、v.-ing形式或介词短语等。

【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，to是介词。

【拓展】

makenodifferenceto对……没有影响

makesomedifferenceto对……有一些影响

e.g.Itmakesnodifferencewhetheryougotodayortomorrow.

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。

writeto,leadto,cleanup,cutdown,playapartin

1.Whatamess!

Youshould____________yourroomnow.

2.Everyfarmerknowsthatweather____________farming.

3.Asweallknow,smokingtoomuchcan____________cancerandmany