人教版九年級英語：Unit 13 We are trying to save the earth!教案

Unit13We'retryingtosavetheearth!

教學目標：

話題Topic：環(huán)境保護(Protectingtheenvironment)

功能Functions：

能談論環(huán)境污染和環(huán)境保護問題(Talkaboutpollutionandenvironmental

protection)

We'retryingtosavetheearth.

Theriverusedtobesoclean.

Theairisbadlypolluted.

Tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.

語法復習：Reviewofkeystructures

能正確區(qū)分和使用以下語法結構：現(xiàn)在進行時、usedto、被動語態(tài)、現(xiàn)在完成時、

情態(tài)動詞等。

Wearetryingtosavetheearth.

Theriverusedtobesoclean.

Itwasconsideredthenicestriverintown.

Weshouldhelpsavethesharks.

詞匯和常用表達Words&expressions

1.能正確使用下列詞匯(Curriculumwords)

bottom,fisherman,coal,advantage,industry,law,gate,bottle,president,work,

metal,ugly,wooden,plastic,cruel,harmful,scientific,litter,cost,afford,recycle

2.能正確使用下列常用表達(Usefulexpressions)

beharmfulto,atthetopof,thefoodchain,takepartin,turnoff,payfor,takeaction,

throwaway,putsth.togooduse,pull...down,upsidedown,bringback

3.能認讀下列詞匯(Non-curriculumwords)

takeaway,bin,shark,fin,chain,ecosystem,reusable,transportation,napkin,

inspiration,iron,creativity

學習策略Strategies

1.借助文章標題和插圖對閱讀篇章內容進行合理的預測

2.能在閱讀中借助上下文語境和構詞特征猜測部分詞匯的含義

文化知識Culture

了解環(huán)境污染情況問題和如何保護環(huán)境

SectionA1(la-2d)

Learningobjectives:

1.Tolearnandtalkaboutairpollution,wastepollutionandwaystosolvethe

problems.

2.Tolearntousethesentencepatterns.

usedto...butnow...

shoulddosth.

3.Tomasterkeywordsandphrases:

litter,bottom,fisherman,coal,ugly,advantage,cost,wooden,plastic,makea

difference,leadto,insteadof

I.Warmingup

Showthepicturestomakesomecomparisonandtellstudentstheearthispolluted

now.

Forexample:(1)Thefactoriesthatbumcoalpollutetheairwithalotofblacksmoke.

(2)Factoriesputwasteintotheriver.

(3)Peopleshouldthrowawaylitterinthebin.

(4)Therearemorecarsontheroad.

II.Workonla

Herearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.

Thenaddmorewords.

loudmusiccarsrubbishplaneslitteringships

factoriessmokingbuildinghousesmobilephones

noisepollutionairpollutionwaterpollution

Keys:noisepollution:loudmusic,planes,buildinghouses,mobilephones,(machines

crowds,vehicles)

airpollution:cars,factories,smoking,buildinghouses,waterpollution,

(burning,powerplants,nuclearwastedisposal)

waterpollution:rubbish,littering,ships,factories,(sewage,industrialwaste,

pesticides)

III.Listening

1.Workonlb.Listenandcompletethesentences.

Whatwastheproblem?Theriverwas______________.Eventhebottomof

theriverwasfullof_____________.Therewereno

more_____________forfishermentocatch.

Whatcausedtheproblem?Peoplearethrowing_____________intotheriver.

Factoriesareputting_____________intotheriver.

HowshouldtheproblembeWeshouldwritetothe_____________andaskthem

solved?to_____________thefactories.Everyoneshould

helpto_____________theriver.

Keys:reallydirty,rubbish,fish

litter,waste

government,closedown,cleanup

2.Listenagainandanswerthefollowingquestions.

1)WhatdoesTonywanttodolaterthisafternoon?

HewantstogoswimmingwithMarkintheriverlaterthisafternoon.

2)Howwastheriverinthepast?

Itusedtobesoclean.Ithasbeenthenicestriverinthistown.

3.Presentthetapescriptandletstudentsreadaftertheaudio.

usedtodosth.“過去常常……”表示過去習慣性的動作但如今已不存在。

playapartindoingsth.“參與做某事；在做某事上起作用”。

IV.Practice

1.Role-playtheconversationin1c.

Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.

Tony:Butitusedtobesoclean!

Mark:Yes,butpeoplearethrowinglitterintotheriver.

Tony:Everyoneinthistownshouldplayapartincleaningitup!

2.Makeconversationsaboutkindsofpollutioninla.

3.Workingroups.Eachgroupchooseatopicin2a.Saythewordsorphrasesrelatedto

thetopiconebyone.

VListening

1.Workon2a.Listentotheinterview.CirclethekindsofpollutionthatJasonandSusan

talkabout.

A.landpollutionB.airpollution

C.noisepollutionD.waterpollution

Keys:AB

2.Workon2b.Listenagainandcompletethesentences.

1)Theairisbadlypollutedbecausethereareontheroadthesedays.

2)Factoriesthatburncoalalsotheairwithalotofblacksmoke.

3)Thereisalsotoomuchrubbishandwaste.Peoplethingsevery

day.

4)Peoplearealsolitteringinlikeparks.Thisisturningbeautiful

placesintougly(丑陋)ones.

Keys:1)morecars2)pollute3)arethrowingaway4)publicplaces

Thinkabout:Whatelsecancausethetwokindsofpollutioninlife?

VI.Practice(Workon2c)

Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.

Jason:Theairhasbecomereallypollutedaroundhere.Tmgettingveryworried.

Susan:Yes,Iusedtobeabletoseestarsinthesky.

Jason:Theproblemisthat...

VII.Discussion

Askstudentstodiscusstheirideasforsolvingtheairpollution/wastepollutionproblem.

VIII.Workon2d

1.Read2dandcompletethechart.

ProblemsSolvingproblems

airpollutiontakethebus,subwayorrideabikeinsteadofdriving

wastepollutionbringabagtogoshopping

nevertakewoodenchopsticksorplasticforkswhenbuying

takeawayfood

throwrubbishinthebins

IX.Languagepoints

1.We'retryingtosavetheearth!我們正在竭盡全力拯救地球！

trytodo=tryone'sbesttodo盡力去做某事

【語境應用】翻譯句子

我們將努力在一周內完成這項工作。

We'lltrytofinishtheworkinaweek.

【拓展】try相關短語：

trydoingsth.試著做某事

tryon試穿

tryout嘗試；試驗；試試

【語境應用】用try短語的適當形式填空。

1)Iwenttothetailor5stomynewsuit.

2)Lefsyourmethod.Itseemsverygood.

3)IthinkyoushouldtoimproveyourEnglish.

4)Letmethestory.讓我試著講一講這個故事吧。

Keys:tryon,tryout,tryyourbest,trytelling

2.Tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.

為了減少空氣污染，我們應該乘公共汽車或地鐵而不是開車。

cutdown砍倒；消減，減少使用

e.g.Youspendmorethanyourincome.Canyoutrytocutdown?

你入不敷出了，可以減少開支嗎？

Manybigtreesalongtheroadhavebeencutdownforbuildinghouses.

路旁的許多大樹都被砍掉建房了。

拓展：cutoff切斷，停掉；中斷……的通話，打斷；使分離

cutup切碎

【語境應用】將所給英語句子翻譯成漢語。

1)Pleasecutupthemeatbeforeyoudosomecooking.

在你做飯前請把肉切碎。

2)Theoilsupplywascutoffinthiscountrylastmonth.

上個月這個國家的石油供應被切斷了。

3)Hecutdownoncoffeeandcigarettes.

他減少了喝咖啡和吸煙。

3.Ifsgoodforhealthanditdoesn'tcostanything!

它對健康有好處，而且不花一分錢！

costV.花費；使付出，指花費金錢，主語通常是物。

costv.(cost,cost)花費；使付出

常用結構：sth.cost(s)sb.somemoney

e.g.ThenewshirtcostMr.Wang200yuan.

王先生花了200元買了一件新襯衫。

Howmuchdoesthenewcomputercost?

新電腦花了多少錢？

辨析pay,take,cost&spend

花費時間，常用于ittakessb.sometimetodo

take

sth.這一句型中，其中it作形式主語

花費時間和金錢，主語通常是人，常用搭配：

spend

spend...onsth.和spend...(in)doingsth.

pay花費金錢，主語通常是人，常用搭配：payfor

表示花費金錢或值(多少)錢，主語通常是物，

cost

常用搭配：sth,cost(s)(sb.)somemoney.

【語境應用】根據句意用take,spend,pay或cost的適當形式填空。

1)Thatnewcarthemlotsofmoney.

2)Mona50yuanonthebooksjustnow.

3）Itusuallymeanhourtodomyhomework.

4）Youshouldsometimepractisingyourpronunciation.

5）Mybrother3,000yuanforthenewcomputeryesterday.

Keys:cost；spend；takes；spend；paid

4.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!

因此，我們齊心協(xié)力就能帶來變化，創(chuàng)造更加美好的未來！

makeadifference（to...）（對...）產生重大影響或作用

【拓展】

makenodifferenceto對...沒有影響

makesomedifferenceto對...有一些影響

makeabigdifferenceto對...有很大影響

e.g.Itmakesnodifferencewhetheryouacceptorrefusehim.

Theseaairhasmadesomedifferencetoherhealth.

Alittlethingthatmakesabigdifference.

【語境應用】根據漢語意思完成下列句子（每空一詞）。

1）你是去是留對我都無所謂。

Itdoesn'ttomewhetheryougoorstay.

2）學習駕駛時，若有一位好教練指導，效果則大不相同。

Whenyou'relearningtodrive,havingagoodteachermakes

Keys:makeanydifference,abigdifference

leadto導致

e.g.Eatingtoomuchsugarcanleadtohealthproblems.

【鏈接】

leadsb.to...帶領某人去...

e.g.HispetdogLuckyledustohishousejustnow.

【語境應用】根據漢語意思完成英語句子，每空一詞。

1）工作太多、休息太少常常導致疾病。

Toomuchworkandtoolittlerestoftenillness.

2）昨天那個男孩帶領他們去了那家超市。

Theboy_________________thesupermarketyesterday.

Keys:leadto,ledthemto

X.Summary

writeto...給……寫信

thebottomoftheriver河底

throwlitterintotheriver往河里扔垃圾

cleanup...把……打掃干凈

land/air/noise/waterpollution土地/空氣/噪音/水污染

turn...into...把……變成……

cutdownairpollution減少空氣污染

insteadof代替

begoodfor...對……有好處

takeawayfood外賣食品

keeppublicplacescleanandbeautiful保持公共場所干凈美觀

makeadifference影響；有作用

leadto帶來；導致

XLExercises

I.根據語境及所給首字母提示，補全所缺單詞。

1.Thisdictionarycme228yuan,butitwasworthit.

2.Thisstreetiscleanedeveryday.Youcanhardlyfind1whenyouwalk

alongit.

3.Thismethodhastwoa:first,itischeaper;andsecond,itisquicker.

4.Peopleareencouragedtotaketheirownbagsinsteadofbuying

2bagswhenshopping.

5.Thewaterisnotverydeephere.Icantouchtheb.

II.根據漢語意思完成英語句子，每空一詞。

1.房間里擠滿了人。發(fā)生什么事了？

Theroomwaspeople.Whathappened?

2.你應該交個筆友，用英語給她寫信。

YoushouldmakeapenfriendandherinEnglish.

3.轉學對我的一生有影響。

Transformingfromoneschooltoanother_____________________________________

tomylife.

4.Susanseldombuys(外賣食物).Mostofthetimeshecooksat

home.

5.Tohelp(減少空氣污染),Jasonridesabiketo

workinsteadofdriving.

6.Manypeoplefearthattheuseofrobotsinfactorieswill______________(導致)

jobloss.

Homework

思考校園的不環(huán)?，F(xiàn)象有哪些。寫信給學校的校長，信內列出校園不環(huán)保的現(xiàn)

象及相應的解決建議。100字左右。

SectionA2(3a-3b)

Learningobjectives

1.Tounderstandthepassageabouttheendangeredanimal-sharks.

2.Tohavetheawarenessofprotectingthesharksandrespectingnature.

3.Tolearnsomewordsandexpressions.

I.Warmingup

1.Therearesomeanimalswhichareendangered.Makealistoftheendangeredanimals

inChina.

2.Discussthefollowingquestions.

1)MakealistoftheprotectedanimalsinChina.

2)Whatdoyouknowaboutsharks?

3)Doyouthinksharksareendangered?Why?

4)Whatdoyouthinkmighthavecauseda