Unit3ComputersgrammarTheparativeandsuperlative課件滬教牛津版英語八年級上冊

Unit3

Computersgrammar

Thecomparativeandsuperlative比較級我們用形容詞和副詞的比較級來比較兩個事物。smallerfasternicercuterbiggerlazierhappier

morepowerful

morehard-working一、作用

Baseform

Comparatives

smallfastnicecutebigthinlazyhappypowerfulhard-workingsmallerfasternicercuterbiggerthinnerlazierhappiermorepowerfulmorehard-workingPleasefindouttherules!Form1.在單音節(jié)詞后加“er”

2.以字母e結(jié)尾的詞直接加“r”

3.“輔元輔”，雙寫尾字母，再加“er”4.輔音字母加y結(jié)尾的，改y為i加er5.多音節(jié)詞前用“more”BaseformComparativessmallfastnicecutebigthinlazyhappypowerfulhard-workingsmallerfasternicercuterbiggerthinnerlazierhappiermorepowerfulmorehard-workingRules二、規(guī)則變化原級比較級good/wellbad/badlymany/muchlittlefarold不規(guī)則變化betterworsemorelessfarther(距離：“更遠(yuǎn)”)further(程度：“更進(jìn)一步”)older(新舊或年齡)elder(兄弟姐妹長幼關(guān)系)三、不規(guī)則變化Iambiggerthancars.Iammuchsmaller,cuterandbetter.Imakethemhappier!Wearemuchcheaperbutnicerandmorepowerfulnowadays.Icancalculatefaster

thanyoucan.A+系動詞+adj.比較級+(than+B)A+實(shí)義動詞+adv.比較級+(than+B)四、比較級句子句型：A+...形/副比較級+than+B

Task3比較級用法1意義：A比B......TheHulkisstrongerthanme.CaptainAmericarunsfasterthanme.綠巨人比我強(qiáng)壯。美國隊(duì)長比我跑得快。例句：句型：比較級and比較級...

Task3比較級用法2意義：越來越......Heisgrowingtaller

and

taller.Sheisbecomingmoreandmorebeautiful.他長得越來越高了。她變得越來越漂亮了。例句：多音節(jié)：moreandmore+原級句型：The+比較級，The+

比較級...

Task3比較級用法3意義：越...就越...Thebusiersheis,thehappiershefeels.Themoreyoupracticed,thebetteryouare.她越忙，她就感到越高興。你練習(xí)得越多，你就越厲害。例句：句型：主+be+the比較級+ofthetwo+...

Task3比較級用法4意義：兩者中比較......的Mikeisthetallerofthetwobrothers.Thisgreendressisthecheaperofthetwo.麥克是兩兄弟中較高的那一個。例句：這件綠裙子是兩件中更便宜的那件。句型：Whichis+比較級，AorB？

Task3比較級用法6意義：A和B，哪一個比較......?Whichisbetter,thewhiteoneortheblueone?例句：白色的和藍(lán)色的？哪一件更好？Iammuchsmaller,cuterandbetter.Wearemuchcheaperbutnicerandmorepowerfulnowadays.Wearemuchcheaperbutnicerandmorepowerfulnowadays.Butsomepeoplebecomeabitlazierthanbeforebecauseofus.Sometimesweareevenmorehard-workingthanthem.much，far，alot，evenabit,alittle差異程度大差異程度小標(biāo)志詞：than五、標(biāo)志詞最高級Iamthebestamongus!Icalculatefastestofthethreeofus.Iamthefunniest,nicestandmostpowerfulcomputer.Iamalsothethinnestandlightest.Peoplecancarrymearoundintheirpocketseasily.我們用形容詞和副詞的最高級來比較三個及以上事物。fastestfunniestthinnestnicest

mostpowerful一、作用

Positive

Superlatives

fastfunnythinnicepowerfulfastestfunniestthinnestnicestmostpowerfulPleasefindouttherules!二、規(guī)則變化在單音節(jié)詞后加

“est”

“輔元輔”，雙寫尾字母，再加“est”

多音節(jié)詞前用themost輔音字母加y結(jié)尾的，改y為i加estPositive

Superlatives

以字母e結(jié)尾的詞直接加stfastfunnythinnicepowerfulfastestfunniestthinnestnicestthemostpowerfulRules二、規(guī)則變化原級比較級最高級good/wellbettermany/muchmorebad/ill/badlyworseoldolder/elderfarfarther/furtherbestmostworstoldest/eldestfarthest/furthest不規(guī)則變化三、不規(guī)則變化Iamthebestamongus!Icalculatefastestofthethreeofus.Tips:

使用

來表示比較的范圍。of/in/among標(biāo)志詞Iamthebestamongus!Icalculatefastestofthethreeofus.Iamthefunniest,nicestandmostpowerfulcomputer.Iamalsothethinnestandlightest.形容詞

的最高級前面必須有the副詞

的最高級前面可以去掉the句型：oneof+the最高級+名詞復(fù)數(shù)+in/of/among

Task4最高級用法2意義：......是......中最......之一Marvelisoneofthemostpopularindustriesofcomicsintheworld.漫威是世界上最受歡迎的漫畫公司之一。例句：句型：Whichis+the+最高級+...?

Task4最高級用法3意義：在...（范圍內(nèi)）哪一個最......?Whichisthestrongestmaninthisgym?這個健身房中最強(qiáng)壯的男士是誰？例句：原級比較句型：A+...as+形/副原級+as+B...

Task2原級用法1意義：A和B一樣......Tomisastallashisfather.Lilyworksashardashersister.湯姆和他爸爸一樣高。莉莉和她姐姐一樣努力。例句：句型：A+...not

as+形/副原級+as+B

Task2原級用法2意義：A不像B那樣......Tomisnotastallashisfather.Lilydoesn'tworkashardashersister.湯姆不像他爸爸那樣高。莉莉不像她姐姐一樣努力。例句：二、根據(jù)句意或用所給詞的正確形式填空。A.1.Thetableisfivemeters______________(long)thanthatone.2.Bettyis______________girlinherclass.(tall)3.Whodid______________inthe100-metrerace,JimorTim?(badly)4.Thingsareeven______________(light)onthemoonthanontheearth.5.Goldis______________(useful)thaniron(鐵).6.Thefilmis_________________(exciting)onethatIhavewatched.

7.AmymadefewermistakesthanFrank.Shedidherhomework______________(careful).8.Idon’tknowwhichcityisthethird______________(large)intheworld.9.Shemade______________(few)mistakes(錯誤)ofallthestudents.10.Travellingbyplaneis______________(fast)thananyotherwayoftravelling.longerthetallestworselightermoreusefulthemostexcitingcarefullylargestthefewestfasterB.1.Thepeoplearedrawnbytheshoeswiththelowprice,goodqualityand__________(create)design.2.Itistheworld’s______________(two)biggestcompany.3.Hewasnotabletoseeas_____