Unit4

復(fù)習(xí)GettingreadyInthisunit,youwilllearnabouttreesandtheirimportanceinourlives.

Reading

ListeningReadaninterviewabouttrees.Listentoaradioprogrammeaboutpinetrees.GrammarSpeakingWritingLearnhowtousethepresentcontinuoustense.(現(xiàn)在進(jìn)行時(shí))Learnhowtosaythe/sk/,/sp/,/st/,/sl/,/sm/,/pl/,/kw/and/tw/sounds.Discusstheimportanceoftrees.Describesomepictures.ReadingInthisunit,wearegoingtotalkaboutanotherofman’sbestfriendsonEarth,trees.Whatcanwegetfromtrees?Use:pencil,chopsticks,tables,chairs,paper,etc.Eat:fruit,nuts(堅(jiān)果)Wear:flower,shoes(rubber)橡膠Drink:tea(leaves),coffee(beans)WarmingupFillinthechart:produceoxygenforustobreathetakeinharmfulgasesfromtheairBrainstormingWhatdotreesdoforus?Treesaremajor

fightersagainstairpollution.Treestakein

harmful

gasesfromtheairandproduce

oxygenforustobreathe.3BeforeyoureadLookatthetitleoftheinterviewonpage45.Thenanswerthequestionbelow.Manyofthethingsinourdailylivescomefromtrees.Forexample,paperpencils,andchairs.4ReadingTreesinourdailylivesRebeccawantstoknowmoreabouttreesandhowtheyhelpus.SheisinterviewingDrJonesabouttrees.Dictationsave pine discussbranch root fight against example 拯救松樹討論樹枝根與……作斗爭(zhēng)反對(duì)例子harmful gas produceoxygenmajor convenient furniture imagine 有害的氣體產(chǎn)生；生產(chǎn)氧氣主要的方便的家具相像；設(shè)想takein comefrom forexample infact lookaround (be)madeof millionsof 吸收來自例如(補(bǔ)充細(xì)節(jié))確切地說環(huán)顧四周由……制成大量的；數(shù)以百萬計(jì)的根據(jù)句意及所給單詞的首字母寫出所缺單詞，注意其形式。1.Youareagreatdoctor.Thankyoufors______mylife.2.Canyoui______aworldwithoutair?3.Don’tgointotheroom.Thereisbadg______init.4.Eatingtoomuchsweetsish______toourteeth.5.Iwilld______theproblemwithyouthisafternoon.6.Ifyoudon’tunderstand,I’llgiveyouanothere______.avingmagineasarmfuliscussxample6ReviewthetextRepeatthetextafterthetape.produce

againstfurnitureconvenientmajorImagineifwedon’tprotectthetrees,

Whatwillhappen?

Ifwedon’tsavethetrees:

Ourenvironmentwillbecomebadsuchasairpollution.Leadtodisastersuchassandstormandtyphoon.Peoplewillgetthedisease.

Inaword,donotsavethetreesispollutingtheearthandourhome.

Ifwelovetrees,protectenvironment.Ourenvironmentwillbecomebetterandbetter.Treesaregoodforourhealth.Plantmoretreesandcutlesstrees.(多植樹,少砍樹)Topromotetheprotectionoftreesapproach.(向身邊的人宣傳保護(hù)樹的方法)Whatshouldwedotosavethetrees?Whenyouwritecanusebothsidesofpaper.(當(dāng)你寫的時(shí)候可以用紙的兩面)Nottousedisposablewoodenproducts(不用一次性的木制品)Don’tstripthebarkandnotscribblecarvingonthetrees.(不剝樹皮,不能在樹上亂涂亂刻)Trytofindoutsomecollocationsfromthearticleasmanyasyoucan.1.knowabout2.inmanyways3.takein4.inourdailylives5.comefrom6.forexample7.infact=asthematteroffact8.lookaround9.bemadeof10.cutdown11.millionsof12.stopdoingsth.1.了解2.在很多方面3.吸收4.在我們的日常生活中5.來自6.例如7.事實(shí)上8.環(huán)顧9.由……制成10.砍伐11.大量的；數(shù)以百萬計(jì)的12.停止做某事短語收藏夾lookaround

環(huán)顧四周inone’sdailylifeinmanywayscutdownfightagainst在日常生活中在許多方面砍；砍下與……作斗爭(zhēng)；反對(duì)Languagepoints:1.Theytakein

harmfulgasesfromtheairandproduceoxygenforustobreathe.

takein意為“吸收”樹能夠吸收二氧化碳。

Treescantakeincarbondioxide.LanguagePointsTheykeeptheaircoolandclean.它們（樹木）保持空氣涼爽和清潔。keep是動(dòng)詞，意為“保持；繼續(xù)”。常用句型有：keepsb/sth+adj.意為“使某人/某物保持某種狀態(tài)”。如 別傷心了。 Don’tkeepyourselfsad.(2)keepdoing...意為“繼續(xù)做……”。如： 機(jī)器一直運(yùn)轉(zhuǎn)。

Themachinekeptworking.(3)keepsb/sthdoing...意為“讓某人/某物一直/繼續(xù)做……”。如： 別讓火一直燒著。

Don’tkeepthefireburning.根據(jù)中文意思完成句子。1.我們應(yīng)該每天都保持教室清潔。

Weshould____________________everyday.2.他們?cè)谟曛欣^續(xù)踢足球。

They__________footballintherain.3.她昨天讓我等了她半個(gè)小時(shí)。

She_______________forherforhalfanhouryesterday.keeptheclassroomcleankeep/keptplayingkeptmewaiting

harmful是個(gè)派生詞，即詞根加后輟（suffix）

e.g.use+ful=usefulbeharmfultosth.對(duì)……有害從工廠里排出的廢水對(duì)我們的健康有害。

Wastewaterfromfactoriesisharmfultoourhealth.tobreathe是個(gè)動(dòng)詞不定式，作目的狀語。3.They’remajorfighteragainst

airpollution.

fightagainst與……作斗爭(zhēng)在我們城市我們必須要與空氣污染作斗爭(zhēng)。

Wemustfightagainstairpollutioninourcity.

mainadj.主要的

在大城市，空氣污染是一個(gè)主要問題。Airpollutionisamainprobleminbigcities.4.Treesalsomakeourlivesmoreconvenient.

樹也讓我們的生活更方便。

makesb.+adj.意思是“使某人感到……”這個(gè)好消息使媽媽感到很開心。

Thegoodnewsmademymumhappy.5.Infact,wegetalotmorefromtrees.

infact(補(bǔ)充細(xì)節(jié))確切地說

我曾經(jīng)在你家鄉(xiāng)工作過，確切地說，在你爸爸公司附近。

Ionceworkedinyourhometown,infact,nearyourfather’scompany.6.Lookaroundthisroom.Alotofthefurniture

ismadeofwood.

環(huán)顧這個(gè)房間。很多家具由木頭制成。

lookaround意為“環(huán)顧”

bemadeof意為“由……制成”

（看得出原材料）

bemadefrom表示“用……制作”

（看不出原材料）Thedeskismade____wood.Paperismade_____wood.offrom3.bemadeof、bemadefrom、bemadeupofbemadein,,bemadeinto區(qū)別bemadeof指“看得出原料的”；bemadefrom指“看不出原料的”；bemadeupof由...組成bemadein在...制造bemadeinto被制成...4.她靠不住,比如說,昨天她就來遲了。

Youcan'tdependonher,________,shearrivedlateyesterday.5.這座橋是由石頭造成的。Thebridge____________stones.6.紙是用樹木制成的。

Paper____________wood.7.我們班是由50名學(xué)生組成的。

Ourclass____________50students.forexampleismadeof

ismadefrom

ismadeupofLanguagepoints1.stoptodo與stopdoingsth區(qū)別

stoptodo指“停下來去做另一件事”,stopdoing指“停止正在做的事”，2.forexample與suchas的區(qū)別forexample“例如”+句子、段落,可位于句首、句中或句末。suchas“例如”+單詞、詞組或動(dòng)詞ing，插在被列舉的事物與前面的名詞之間,as后面不可有逗號(hào)。選擇最佳答案填空。()1.Whenthechildsawhisparents,hestopped____andrantothem. A.cry B.tocry C.crying D.tocrying()2.HewatchedTVforanhour.At9p.m.,hestopped____hishomework. A.do B.doing C.todo D.todoingCC根據(jù)中文意思用合適的短語填空1.那兩個(gè)女孩一見到我就停止了講話。

Thetwogirls__________whentheysawme.

2.這兩個(gè)女孩一看到我就停下來和我講話。

Thetwogirls____________tomewhentheysawme.3.許多國家都講英語,例如澳大利亞和加拿大。

Englishisspokeninmanycountries,________AustraliaandCanada.

stoppedtalkingstoppedtotalksuchas

選擇最佳答案填空。()1.Youareexcellent____manyways. A.on B.at C.in D.for()2.IwaswatchingTVatthattime.Whenmymothercameintotheroom,Istopped____mybook. A.reading B.readC.toreadD.toreading()3.Istoodupto____whenagentlehandtouchedmyshoulder. A.lookup B.lookaround C.lookafter D.lookfor()4.Ifyouwantto____,youhadbettertakeexerciseeveryday. A.keephealth B.keephealthily C.keepinghealth D.keephealthyDCCBButwecutdownmillionsoftreeseveryyear.但是，我們每年都砍掉大量的樹木。million意為“百萬”，*表示具體的數(shù)目時(shí)用單數(shù)形式（eg.fivemillion）；*表示不具體的數(shù)目時(shí)用復(fù)數(shù)形式，且與of連用，構(gòu)成短語millionsof，意為“大量的；數(shù)以百萬計(jì)的”。如：這棟房子價(jià)值兩百萬元。

Thehousecoststwomillionyuan.每年，數(shù)以百萬計(jì)的游客來游覽北京。

Everyyear,millionsoftouristscometovisitBeijing.類似million用法的數(shù)詞還有：hundred和thousand。選用million或millionsof填空。1.Thereare________booksinthelibrary.2.Thereareoversix________peopleinthiscity.millionmillionsofUsingsuffixestoguessmeaningsLookatthesetwosentences.Doyouknowthemeaningsofusefulandharmful?Treesgiveusalotofusefulthings.(樹帶給我們?cè)S多有用的東西)Treestakeinharmfulgasesfromtheair.(樹木吸收空氣中的有害氣體)Usefulandharmfulbothendin-ful.Itisasuffixmeaning‘fullof’.(有益的和有害的都以ful結(jié)束,這是一個(gè)后綴的意義“全”)Canyouguessthemeaningsofthefollowingwords?hopefulhelpfulCanyougivesomemoreexamples?Completethesentenceswiththecorrectwords:Therescueteamcamequicklyands_____theoldwoman’slife.You