Unit6Keepourcityclean第1課時Storytime譯林版知識點(diǎn)一thesepicturesofourcity【知識精講】thesepicturesofourcity這些我們城市的圖片ofprep.……的，amapofChina一張中國地圖aphotoofmyfamily我的一張全家福【經(jīng)典例題】Ilikethosepictures________thepark.A.forB.ofC.from【名師解析】A.for為了；B.of……的，C.from從。根據(jù)句意可知，“那些公園的照片〞用of，所以選B。知識點(diǎn)二Whatmakestheair/streetsdirty?【知識精講】Whatmakestheair/streetsdirty?什么使空氣/街道變臟？答語為具體內(nèi)容，如Smoke/Rubbishmakestheair/streetsdirty.煙霧/垃圾使空氣/街道變臟。Whatmakes…dirty?是用來詢問“……使……變臟了？’’的句型，答復(fù)用具體內(nèi)容。【經(jīng)典例題】What_______(make)theairdirty?【名師解析】特殊疑問詞做主語，謂語動詞一般用單三形式，所以填makes。知識點(diǎn)三messyanddirty【知識精講】messyanddirty又亂又臟messyadj.亂七八糟的messn.混亂，雜亂atamess亂七八糟【經(jīng)典例題】Yourroomis______(mess)now.Pleasecleanitatonce.【名師解析】句意：你的屋子現(xiàn)在亂七八糟。請馬上清掃。is后用形容詞做表語，messyadj.亂七八糟的，所以填messy。知識點(diǎn)四There’srubbishinthewater….【知識精講】rubbish不可數(shù)名詞，垃圾Therebe句型中的be因?yàn)閞ubbish是不可數(shù)名詞而使用is。【經(jīng)典例題】Therubbish_______(be)everywhereinthefactory.【名師解析】句意：工廠里面到處都是垃圾。rubbish不可數(shù)名詞，所以用is。知識點(diǎn)五Whatcanwedotomakeourcityclean?【知識精講】Whatcanwedotomakeourcityclean?我們可以做什么保持我們的城市干凈？tomakeourcityclean是動詞不定式，在這里表示目的，意為：為了。答語可以用Wecan….如：Wecantakethebusandthemetrotoschool.我們可以乘公共汽車和地鐵上學(xué)。【經(jīng)典例題】Whatcanwedo_______(make)ourcityclean?【名師解析】句意：我們可以做什么保持我們的城市干凈？橫線局部表達(dá)的是“為了……〞，所以用動詞不定式tomake表示目的。答案為tomake。知識點(diǎn)六can【知識精講】can在這里意為“可以〞，是情態(tài)動詞，沒有人稱和數(shù)的變化，它后面的謂語動詞必須用原形。肯定句：主語+can+動詞原形+其他。如：Hecanmakeakite.他會做風(fēng)箏。否認(rèn)句：主語+can’t+動詞原形+其他。如：Shecan’trideabike.她不會騎自行車。一般疑問句：Can+主語+動詞原形+其他？其肯定答復(fù)是：Yes,…can.否認(rèn)答復(fù)是：No,…can’t.如：—Canyouplaythepiano?你會彈鋼琴嗎？—Yes,Ican./No,Ican’t.是的，我會。/不，我不會。【經(jīng)典例題】Thelittleboycan______(walk)toschool.【名師解析】can是情態(tài)動詞，沒有人稱和數(shù)的變化，它后面的謂語動詞必須用原形。所以填walk。知識點(diǎn)七Theyhelpkeeptheairclean.【知識精講】Theyhelpkeeptheairclean.他們幫助保持空氣清潔。help(sb)dosth.幫助〔某人〕做某事【經(jīng)典例題】Theseflowershelp______(keep)theschoolbeautiful.【名師解析】help(sb)dosth.幫助〔某人〕做某事，所以填keep。課時小練一、單項(xiàng)選擇1._____yourcityclean?A.

Do

B.

Does

C.

Is2.Treeshelp____theairclean.A.

keep

B.

keeps

C.

keeping3.Wecan___thefloornow.A.

sweep

B.

sweeping

C.

aresweeping4.—What____ourcitydirty?—Smoke____thecars.A.

makes;from

B.

make;about

C.

takes;to5.Look!There___muchblacksmokeinthesky.A.

is

B.

are

C.

have二、用所給詞的適當(dāng)形式填空1.There________(be)alotofrubbishinthewaterlastyear.What_______(make)thestreetsdirty?Idon’tlike______(mess)rooms.Whatcanwedo_______(make)ourcityclean?Thegirlcan______(take)thebustoschool.Thesetreeshelp______(keep)theparkbeautiful.三、句型轉(zhuǎn)換1.Canwetramplegrass？〔作否認(rèn)答復(fù)〕________________________________________________2.Sometimeswetakeabustoschool.〔改為同義句〕Sometimeswe________toschool________bus.3.Ourcityisclean.〔變?yōu)橐话阋蓡柧洹砡_______________________________________________4.Wecancleanthedesk.〔對