牛津譯林版八年級(jí)英語(yǔ)上Unit3-grammar課件

8AUnit3

AdayoutGrammarGrammarALilyMillie

SandyLilyistallerthanMillie.SandyistallerthanLily.Sandyisthetallestofthethree.zxxkLookatthesegirls,whoisthetallest?AndyTomMax

Whoisthetallest?MaxisastallasTom.TomisastallasAndy.as……as和……一樣

1、Weuseas…astosaythatpeopleorthingsarethesameinthesameway.我們用as…as結(jié)構(gòu)表示兩個(gè)人或事物在某方面程度相同。MrWuisashappyasMr.Li.as+形容詞原級(jí)+asTomjumpsashighasDaniel.as+副詞原級(jí)+as()1.Ithinkswimmingis

dancing.A.moreinterestingasB.sointerestingasC.asinterestingthanD.asinterestingas()2.Johnismuchshorterthanhissister,buthejumps

shedoes.A.asgoodasB.asbestasC.ashighasD.ashigheras3.Thishorseisas

(strong)asthatone.4.Marywritesas

(careful)asLucy.

LilyMillie

SandyLilyisnotastallasSandy.MillieisnotsotallasLily.Lookatthesegirls,whoisthetallest?notas…as=notso…as

不如……

2、Weusenotas…as/notso…astosaythatpeopleorthingsarenotthesameinsomeways.我們用notas…as或notso…as結(jié)構(gòu)表示A在某方面不如B。MrWuisnot

ashappyasMr.Li.MrWu不如MrLi快樂(lè)。notas/so+形容詞原級(jí)+asTomdoesnotjumpashighasDaniel.Tom不如Daniel跳得高。notas/so+副詞原級(jí)+as()1.——Theclassroomis

clean

itwasyesterday.——Sorry,Iforgottocleanit.A.as,asB.so,asC.notso,asD.more,than()2.Danielplayschess

,ifnotbetterthan,David.A.aswellB.aswellasC.sowellD.sowellas地理不如歷史難，但是和歷史一樣重要。GeographyisnotasdifficultasHistory,butitisasimportantasHistory.LilyMillie

Sandy

LilyisnotastallasSandy.MillieisnotsotallasLily.notas…as=notso…as

不如……

比較級(jí)+than

比……=LilyisshorterthanSandy.=SandyistallerthanLily.=LilyistallerthanMillie.=MillieisshorterthanLily.拓展1：同級(jí)比較/比較級(jí)的轉(zhuǎn)換：e.g.1)I’mnotastallasheis.=I’mshorterthanheis.=HeistallerthanIam.2)NanjingisnotasbigasShanghai.=NanjingissmallerthanShanghai.

=ShanghaiisbiggerthanNanjing.3)Skiingisn’tasinterestingasswimming.=Skiingislessinterestingthanswimming.

=Swimming

ismoreinterestingthanskiing.拓展2：多音節(jié)形容詞的比較等級(jí)

比較級(jí):more+adj+than

往上比

less+adj+than

往下比

最高級(jí):themost+adj

往最上面比

theleast+adj

往最下面比

e.g.Englishismoreinterestingthan

Maths.=MathsislessinterestingthanEnglish.=MathsisnotasinterestingasEnglish.

()1.TomthinksFrenchis

difficultthanChinese.A.muchB.leastC.lessD.little()2.Theshopkeepershowedhermanybooksandshechose

expensiveone.A.lessB.leastC.thelessD.theleast3.Singingisnotasinterestingasdancing.Dancingis

thansinging.Singingis

thandancing.

zx、xk。拓展3：最高級(jí)/比較級(jí)/同級(jí)比較的相互轉(zhuǎn)換：ShanghaiisthebiggestcityinChina.=Shanghaiis

biggerthananyothercityinChina.=Shanghaiis

biggerthantheothercities

inChina.

()Beijingisbiggerthan

inJapananditisbiggerthan

inChina.A.anycity,theothercityB.anyothercity,anycity

C.anycity,anyothercityD.anyothercities,anyothercityDosomeexercisesinclass1.Jackisn’tasshortasMike.(同義句)Jackis_________________Mike.Mikeis__________________Mike.2.Ithinkskiingisdangerous.(否定句)I_____thinkskiing________dangerous.3.Ithinkdivingismoreexcitingthanswimming.(同義句)Ithinkswimmingis________________thandiving.4.Tomistheclevereststudentinhisclass.(同義句)Tomis_________than__________studentinhisclass.Tomis_________than_________studentsinhisclass.6.MybestfriendBettyisslim.Iamslimtoo.(合并）MybestfriendBettyis________________.shorterthanTallerthandon’tislessexcitingclevereranyothertheotherasslimasIamclevererGrammarBReflexivepronounsReflexivepronouns（反身代詞）Weusereflexivepronounswhenthesubjectandtheobjectarethesameperson.當(dāng)主語(yǔ)和賓語(yǔ)是同一個(gè)人時(shí)，我們可以使用反身代詞．1.DanieltaughthimselfhowtolearnEnglish.eg.2.Sheenjoysherself.反身代詞反身代詞構(gòu)成用法練習(xí)構(gòu)成情況人稱第一人稱第二人稱第三人稱單數(shù)復(fù)數(shù)myselfourselvesyourselfyourselvesthemselvesitself

himselfherself構(gòu)成用法練習(xí)構(gòu)成情況

1、反身代詞單數(shù)詞尾都有-self，復(fù)數(shù)詞尾都有-selves。

2、第一人稱和第二人稱反身代詞都是由形容詞性物主代詞＋-self或-selves構(gòu)成。第三人稱都由人稱代詞賓格＋-self或-selves構(gòu)成。

3、每個(gè)反身代詞都表示“××自己”，如myself我自己，themselves他們自己，等等。構(gòu)成用法練習(xí)用法構(gòu)成用法練習(xí)一、非強(qiáng)調(diào)用法這種用法通常表示反身代詞與句中的主語(yǔ)是同一人,即動(dòng)作的發(fā)出者和動(dòng)作的承受者是同一人。它在句中作賓語(yǔ)，不能省略，否則該句是一個(gè)意義不完整的錯(cuò)句。(1)Jane

is

too

young

to

look

after

herself.Jane太小了無(wú)法照顧自己。(2)I

teach

myself

English.我自學(xué)了英語(yǔ)。(3)He

felloffthebikeandhurthimself.他摔下自行車傷到了自己。用法構(gòu)成用法練習(xí)二、強(qiáng)調(diào)用法

反身代詞在強(qiáng)調(diào)用法中表示強(qiáng)調(diào)，即用來(lái)加強(qiáng)某個(gè)名詞或者代詞的語(yǔ)氣，可譯成“親自”、“本人”或“這樣事情本身”此時(shí)，它在句中作同位語(yǔ)。即使去掉，也不影響句子的完整性。例如：

(1)Thestoryitselfisinterestingenough.這個(gè)故事本身就夠有趣了。(2)I

myself

did

the

homework

last

night.昨晚是我自己做了家庭作業(yè)。用法構(gòu)成用法練習(xí)三、與by搭配

當(dāng)反身代詞與by搭配時(shí)，意為：?jiǎn)为?dú)地，沒(méi)有人幫助的。(1)Thelittleboydrewthepictureallbyhimself.這個(gè)男孩全靠自己畫了這幅畫。(2)He

can

swim

all

by

himself.他能獨(dú)自一個(gè)人游泳.練習(xí)1．Wecan'tonlythinkof_______（we），weshouldthinkofothers．2．Studentsshouldbestrictwith_______（they）．3．Didtheyenjoy_______（them）inthepartylastSunday？4．Help______（you）tosomevegetables，JimandJack．5．Theartist_______（he）willcometoourschoolnextweek．

用所給代詞的適當(dāng)形式填空。

ourselvesthemselvesthemselvesyourselveshimself構(gòu)成用法練習(xí)練習(xí)6．Youcan'tleaveyourdaughterby_______（she）．7．Thecatinthemirroris_______（it）．8．Ibought_______（I）anewdictionarythedaybeforeyesterday．9．I_______（my）agreewithyou．10．Thelittleboyisonlyfour，hecouldwash_______（he）andgetdressed．herselfitselfmyselfmyselfhimself構(gòu)成用法練習(xí)WhathappenedatSouthHill?1.Youcangoandenjoy_________now.2.Ohno!Simonistryingtopull______totherocks.4.Youareluckynottohurt________.5.Wereallyenjoyed_________.6.Theykeptthesecretto__________.yourselveshimselfyourselfourselvesthemselvesRememberthesephrases.1.helponeselfto請(qǐng)吃…2.enjoyoneself過(guò)得愉快3.teachoneself…=