Let'sSortGarbage!

Unit8SaveOurWorld!TounderstandthetextTousethewordscorrectly:emptysortlitterobjectivesReviewVocabularysortthegarbageglassmetalplasticpaperpackagingandothersListenandanswer.WhatdoesJennywanttodotohelpJenny?Shewantstohelphimsortthegarbage.Whatmakesthemostgarbage?Paper.WhatwillDannydowiththetoycar?Hewilltakethecarhomeandcleanit.Whenhefinishfixingthecar,hewillgiveittohislittlecousin,Debbie.PLASTICMETALGLASSPAPERPaperisthemost.Glassistheleast.Thereismorepaperthanplastic.Thereislessmetalthanplastic.ReadingReadthelessonandwritetrue(T)orfalse(F).Thereisalotofgarbage:glass,metal,plasticandpaper.()Thereisthemostamountofglassandtheleastamountofpaper.()DannyfoundDebbie’stoycarinthegarbage.()Dannyoncecuthisfootonapieceofbrokenglass.()TFFTCirclethewordsthat“it”referstoineachsentence.Example:Itisawastetousepaperonlyononeside.Itisfuntotravel.Itisnotrighttowastethings.Itisquiteeasytofindinformationwiththisprogram.Theythinkitisrudetopointwithafinger.Itisdangeroustoleavebrokenglassontheground.LanguagePointsempty:v.倒空adj.空的Thestreetsbegantoemptyaftermidnight.午夜過后街上行人開始稀少了。Vargasemptiedhistoolbag.瓦格斯騰出自己的工具袋。1.Jennyhasemptiedtwobagsofgarbageontothefloor.

sort:v.分類Theysortedtheorangesintolargeonesandsmallones.他們把橘子按大小分類。

Pleasesortthesecardsaccordingtotheircolour.請(qǐng)按顏色將這些卡片分開。2.CanIhelpyousortit?

1)此句為含有情態(tài)動(dòng)詞的被動(dòng)語(yǔ)態(tài)，其構(gòu)成形式為：情態(tài)動(dòng)詞(can/may/must/should)+be+過去分詞Theflowersshouldbewateredeveryday.花兒應(yīng)該每天澆水。

Carsmustn’tbeparkedhere.小轎車不可以停放在這里。ChildrencanbetakentothecinemafreeonChildren’sDay.3.Almostallofitcanbereusedorrecycled!2)re-是前綴，意思是“再，重新”。例如，rewrite,replay,reappear,rebuild,remarry等。reuse意思是“重新使用，再使用”Sheoftenreusesoldenvelopes.她經(jīng)常重復(fù)使用舊信封。recycle意思是“使再循環(huán)；使……重新利用，重復(fù)利用”Theyrecycleemptytinssoastousethemetal.他們回收空罐頭盒以利用其金屬。toomuch:toomany:muchtoo:太多，修飾不可數(shù)名詞或修飾比較級(jí)，含有“過分，難以接受”之意。太多，修飾可數(shù)名詞的復(fù)數(shù)。太……，修飾原級(jí)。4.Peoplethrowtoomuchaway!1.去年雨水太多。

Therewas__________rainlastyear.2.不要吃得太多,否則你會(huì)生病的。

Don’teat________,oryou’llgetill.3.這個(gè)比那個(gè)大得多的多。

Thisoneis________biggerthanthatone.4.汽車太多。

Thereare_____________cars.5.收音機(jī)太吵了，請(qǐng)關(guān)掉它。

Theradiois_________noisy.Pleaseturnitoff.toomuchtoomuchtoomuchtoomanymuchtootheleastamountof意為“數(shù)量最少的……”Thefastestteamdroppingtheleastamountofhotpepperswins.速度最快而且辣椒掉的最少的隊(duì)獲勝。5.Thereistheleastamountofglass.canbedone是含有情態(tài)動(dòng)詞的被動(dòng)語(yǔ)態(tài)。fix相當(dāng)于mend和repair，意思是“修理，修補(bǔ)”，但fix較為口語(yǔ)化。mend除可以表示一般性修理外，還可以用來(lái)表示對(duì)衣服等進(jìn)行修改或修補(bǔ)。6.Itcanbefixed.7.Itcanallberecycled,andmadeintonewglass.bemadeinto…被制成……Hewillmakethisskinintoleather.他將把這張皮制成皮革。

Wecanmakeglassintobottles.我們能把玻璃制成瓶子。

GrammarUsing“it”語(yǔ)法講解建議采用歸納法，如盡可能多的呈現(xiàn)一些相關(guān)例句，或可讓學(xué)生從已學(xué)課文中找相應(yīng)例句，引導(dǎo)學(xué)生試著從所觀察到的語(yǔ)言現(xiàn)象中總結(jié)出語(yǔ)法規(guī)律。1)Itisawastetousepaperonlyononeside.2)Itisfuntotravel.3)Itisnotrighttowastethings.4)Itisquiteeasytofindinformationwiththisprogram.5)Theythinkitisrudetopointwithafinger.6)Itisdangeroustoleavebrokenglassontheground.7)It’snecessarytodiscusstheproblemwithanexperiencedteacher.8)Itisnotverygoodforyoutosmokesomuch．totestyoursenseofobservationtotestyourabilityofshort-termmemorytotestyourabilitytohighlightthelanguagepointsGuessGuessingGame1)Itisawaste_______paperonlyononeside.2)Itisfun___________.3)Itisnotright_________things.4)Itisquiteeasy_________informationwiththisprogram.5)Theythinkitisrude_________withafinger.Fillintheblanks.tousetotraveltofindtowastetopoint6)Itisdangerous________brokenglassontheground.7)It’snecessary_________theproblemwithanexperiencedteacher.8)Itisnotverygoodforyou__________somuch．

toleavetodiscusstosmokePractice1.Itisnotalwayseasy_____invitations.A.torefuse B.refusing C.toberefused D.beingrefused2.Itisbadforyoureyes___computergamestoomuch.A.playsB.toplayC.playD.playing3.It_____himfourhoursandahalftodothework.A.spentB.usedC.neededD.took選擇填空。4.Itwascareless_____himtobreakthecoffeecups.A.for B.to C.with D.of5.Whatapleasure___withthem!A.isittoworkB.itistoworkC.toworkD.tobeworked以上我們已經(jīng)通過歸納總結(jié)和練習(xí)對(duì)本課的語(yǔ)法內(nèi)容有了一定的了解，下面就讓我們根據(jù)之前練習(xí)的考察情況進(jìn)一步選擇講解該語(yǔ)法項(xiàng)的重難點(diǎn)。動(dòng)詞不定式作主語(yǔ)的用法Grammar動(dòng)詞不定式的基本形式為“to+動(dòng)詞原形”，其否定形式是“not+動(dòng)詞原形”。它能起名詞的作用，在句子中充當(dāng)主語(yǔ)、表語(yǔ)、賓語(yǔ)和賓語(yǔ)補(bǔ)足語(yǔ)。動(dòng)詞不定式在作主語(yǔ)時(shí)，常用it作形式主語(yǔ)，而往往將動(dòng)詞不定式放在謂語(yǔ)或表語(yǔ)之后。It’snoteasytolearnaforeignlanguagewell.(=Tolearnaforeignlanguagewellisnoteasy.)學(xué)好一門外語(yǔ)不容易。在此句型中，如果要說明動(dòng)詞不定式的動(dòng)作是誰(shuí)做的，可在不定式前加一個(gè)for引起的短語(yǔ)，作不定式的邏輯主語(yǔ)。即：Itis+形容詞+forsb+todosth(對(duì)某人來(lái)說做……是……)。如：It’sdifficultforustofinishthework.對(duì)我們來(lái)說，完成這項(xiàng)工作很困難。It’shardformetoansweryourquestion.要我回答你的問題很難。但是，如果表語(yǔ)是kind,nice,right,wrong,clever,polite等描述行為者的性格、品質(zhì)的形容詞，則應(yīng)在不定式前加一個(gè)of引起的短語(yǔ)。即：Itis+形容詞+ofsb+todosth(某人做……是……)。Itiskindofyou

tohelpmewithmylessons.你幫助我做功課，太好了。Itissoniceofyou

tocometoseeme.你來(lái)看我太好了。Ittakes/took+sb+sometime+todosth意為“做……花了某人多少時(shí)間”Ittakesheranhourtoreviewherlessonseveryday.她每天花一個(gè)小時(shí)復(fù)習(xí)功課。Ittookmorethan100,000slavestwentyyearstobuildtheGreatPyramid.十萬(wàn)多個(gè)奴隸花了20年的時(shí)間建成了那座大金字塔。Itis+名詞+todosth意為“做……是……”Itisourdutytoservethepeople.為人民服務(wù)是我們的責(zé)任。Itisanhonourtomakeaspeechhere.在這兒演說很榮幸。注意：動(dòng)詞不定式作主語(yǔ)，同時(shí)有一個(gè)不定式作表語(yǔ)時(shí)，不能轉(zhuǎn)換成“It’s…todosth.”的句型。如：[正]Toseeistobelieve.

百聞不如一見。[誤]It’stobelievetosee.Thisbeautifulbowlismadeof_____(金屬).2.Thestreetssoone______whentherainbegan.Shefoundtheringwhiles______som