Unit 3 Same or Different 单元语法讲练比较级和原级（含答案解析）-新人教八年级上册

Unit3SameorDifferent单元语法讲练比较级和原级（含答案解析）—新人教八年级上册

Unit3SameorDifferent单元语法讲练

形容词和副词的比较级、as…as的用法

一、比较级

比较级用于两个人或事物之间的比较，表示“更..."。

1.构成规则：

规则原级比较级例句

一般加-ertalltallerJohnistallerthanMike.

以e结尾，加-rlargelargerThesunislargerthanthemoon.

辅音字母+y结尾，变y为i再加-erhappyhappierShelookshappiertoday.

重读闭音节结尾，双写尾字母再加-erbigbiggerMyroomisbiggerthanyours.

部分双音节和多音节词，前加morebeautifulmorebeautifulThispictureismorebeautifulthanthatone.

不规则变化good/wellbetterHealthisbetterthanwealth.

bad/badlyworseHisscoreisworsethanmine.

many/muchmoreIhavemorebooksthanyou.

littlelessIhavelessmoneythanhe.

farfarther/furtherLet'swalkfarther.(距离更远)

Needfurtherhelp(程度更深)

2.比较级句型：

A+be+比较级+than+B(A比B更...)

Thisboxisheavierthanthatone.

Whichis+比较级,AorB(A和B，哪个更...)

Whichisbigger,CanadaorChina

Abecomes/gets+比较级+and+比较级(A变得越来越...)

Theweatherisgettingcolderandcolder.

The+比较级...,the+比较级...(越...就越...)

Themoreyoupractice,thebetteryourEnglishwillbe.

3.比较级的修饰：

比较级前可以用much,alot,far,even,alittle,abit等词来修饰，表示程度。

Thismovieismuchmoreinterestingthanthatone.

Heisalittletallerthanme.

二、as...as...结构

as...as...结构用于表示同级比较，意为“和...一样”。

1.肯定形式：as+形容词/副词原级+as

A+be+as+原级+as+B(A和B一样...)

LucyisastallasLily.

A+实义动词+as+副词原级+as+B(A做某事和B一样...)

TomrunsasfastasJack.

2.否定形式：notas/so+形容词/副词原级+as

A+be+notas/so+原级+as+B(A不如B...)

Thisbookisnotasinterestingasthatone.

A+don’t/doesn’t/didn’t+动词+as/so+副词原级+as+B(A做某事不如B...)

Idon’tsingaswellasher.

3.倍数表达：倍数+as+原级+as

Thisroomistwiceaslargeasthatone.(这个房间是那个房间的两倍大。)

HehasthreetimesasmanystampsasIdo.(他的邮票是我的三倍多。)

巩固练习(50题)

I.单项选择

1.Thisquestionis________thanthefirstone.

A.difficult

B.moredifficultC.mostdifficult

D.themostdifficult

2.Thesunis________themoon.

A.bigthan

B.biggerthanC.bigger

D.biggestthan

3.Whois________,yourfatheroryourmother

A.oldB.olderC.oldestD.theoldest

4.Thestoryis________thanIexpected.

A.funB.funnyC.funnierD.morefunnier

5.—Howareyoufeelingtoday

—Much________.

A.goodB.wellC.betterD.best

6.Mysisteris________me.

A.astallerasB.astallasC.sotallasD.astallthan

7.Thiscomputerisnot________thatone.

A.asexpensiveasB.asexpensivethanC.soexpensivethanD.expensiveas

8.The________youwork,the________progressyouwillmake.

A.hard;greatB.harder;greaterC.hardest;greatestD.harder;great

9.Hedoesn'tplaytennis________hedidlastyear.

A.asgoodasB.sowellthanC.aswellasD.asbetteras

10.Whichis________,atigeroralion

A.strongB.strongerC.strongestD.thestrongest

11.Wehave________rainfallthisyearthanlastyear.

A.littleB.lessC.leastD.theleast

12.Sheisbecoming________.

A.beautifulandbeautifulB.moreandmorebeautiful

C.themorebeautiful

D.mostbeautiful

13.TheNileis________riverintheworld.

A.longB.longerC.longestD.thelongest

14.Thisboxis________thatone.Ican‘tcarryit.

A.heavierthanB.notasheavyasC.asheavyasD.heavythan

15.Youshoulddrive________.Theroadisicy.

A.morecarefulB.morecarefullyC.carefulD.mostcarefully

16.—Howisyournewjob

—It’s________betterthanmyoldone.

A.veryB.tooC.muchD.most

17.Hisnewbookis________hislastone.Idon’tlikeit.

A.asgoodasB.notasgoodasC.sogoodasD.betterthan

18.________youare,________youwillmake.

A.Themorecareful;thefewermistakesB.Morecareful;fewermistakes

C.Themorecarefully;thelessmistakesD.Morecarefully;lessmistakes

19.Ihave________booksthanyou,butyouhave________moneythanme.

A.more;more

B.fewer;more

C.less;fewerD.more;less

20.Thisbuildingisabout________thatone.

A.twiceastallasB.twiceastallerasC.astwicetallasD.twicetallerthan

II.用所给词的适当形式填空

21.Thisbagistooheavy.Couldyougivemea________(light)one

22.Youransweris________(good)thanmine.

23.Itis________(hot)todaythanitwasyesterday.

24.Whoisthe________(tall)studentinyourclass

25.ShespeaksEnglish________(well)thanIdo.

26.Theweatherisgetting________and________(cold).

27.Thisfilmis________(interesting)thanthatone.

28.Heisnotas________(hard-working)ashisbrother.

29.The________(much)youread,the________(fast)youwillread.

30.My________(old)sisteristwoyears________(old)thanme.

31.Whichis________(heavy),anelephantoratiger

32.Ithinkmathis________(important)thanhistory.

33.Thisstreetis________(narrow)thanthatone.

34.Thingsaregetting________and________(bad).

35.Heisoneof________(famous)singersinChina.

III.句型转换（保持句意基本不变）

36.Tomis16yearsold.Iam15yearsold.(合并为一句)

→Tomis________________________me.

37.Thisbookisinteresting.Thatbookisnotinteresting.(用比较级合并)

→Thisbookis________________thatone.

38.Myroomis10squaremeters.Hisroomis10squaremeters.(合并为一句)

→Myroomis________________________hisroom.

39.Ihave5books.Hehas10books.(合并为一句)

→Ihave________books________he.

40.Shedoesn‘trunfast.Idon’trunfast,either.(合并为一句)

→Sheruns________________________I.

41.Theyellowcoatisexpensive.Thebluecoatischeap.(用比较级合并)

→Thebluecoatis________________theyellowone.

42.Heisthetallestinhisclass.(改为同义句)

→Heis________than________________studentinhisclass.

43.CanadianfootballisverydifferentfromAmericanfootball.(改为同义句)

→Canadianfootballis________________________Americanfootball.

44.Thisproblemislessdifficultthanthatone.(改为同义句)

→Thisproblemis________________________thatone.

45.Mycomputerwasveryexpensive.Hiscomputerwasveryexpensive,too.(合并为一句)

→Mycomputerwas________________________his.

IV.完形填空（用所给词的适当形式填空）

TheHareandtheTortoise

Everyoneknowsthestoryoftheracebetweenthehareandthetortoise.Theharewasmuch(46)________(fast)thanthetortoise.Hecouldrun(47)________(quickly)thananyotheranimalintheforest.Thetortoise,ontheotherhand,wasoneofthe(48)________(slow)animals.

Atthebeginningoftherace,thehareranfarahead.Hethoughtwinningwouldbe(49)________(easy)thingintheworld.Sohedecidedtotakeanap.Meanwhile,thetortoiseneverstoppedwalking.Hewalked(50)________(slowly)butsteadily.

Whentheharewokeup,hesawthatthetortoisewasmuch(51)________(close)tothefinishlinethanhewas.Heranas(52)________(fast)ashecould,butitwastoolate.Thetortoisewasalreadythere.

Thestorytellsusthatbeingsteadyis(53)________(important)thanbeingfastsometimes.Slowandsteadywinstherace.Itisoneof(54)________(well-known)fablesintheworld.Andthetortoisebecame(55)________(famous)thanbeforeaftertherace.

练习题答案与解析

I.单项选择

1.B【解析】多音节形容词difficult，比较级前加more。

2.B【解析】big的比较级是bigger，且其后接than。

3.B【解析】两者（爸爸和妈妈）之间比较“谁更老”，用比较级older。

4.C【解析】funny是以辅音字母加y结尾，变y为i再加-er。

5.C【解析】“感觉好多了”，good/well的比较级是better。

6.B【解析】同级比较肯定形式“和...一样高”，用astallas。

7.A【解析】同级比较否定形式“不如...贵”，用notasexpensiveas。

8.B【解析】“The+比较级...,the+比较级..."结构，hard和great的比较级是harder和greater。

9.C【解析】修饰动词play要用副词well，同级比较否定形式用notaswellas。

10.B【解析】两者（老虎和狮子）之间比较“谁更强壮”，用比较级stronger。

11.B【解析】rainfall是不可数名词，“更少的雨"用less修饰。

12.B【解析】“变得越来越漂亮”，多音节形容词用moreandmorebeautiful。

13.D【解析】“世界上最长的河”，最高级前加the。

14.A【解析】后句“我搬不动”提示前句是“这个箱子比那个重"。

15.B【解析】修饰动词drive要用副词carefully，比较级是morecarefully。

16.C【解析】比较级better前可以用much来修饰，表示“好得多”。

17.B【解析】后句“我不喜欢"提示新书“不如旧书好”，用notasgoodas。

18.A【解析】“The+比较级...,the+比较级..."结构。Careful是形容词，mistakes是可数名词复数，故用themorecareful和thefewermistakes。

19.B【解析】books是可数名词复数，“更少的书”用fewer；money是不可数名词，“更多的钱"用more。

20.A【解析】倍数表达“是...的两倍高”，用twiceastallas。

II.用所给词的适当形式填空

21.lighter【解析】“更轻的”，light的比较级。

22.better【解析】good的比较级。

23.hotter【解析】hot的比较级，双写t再加-er。

24.tallest【解析】“班里最高的”，用最高级。

25.better【解析】well的比较级，修饰动词speaks。

26.colder;colder【解析】“越来越冷”，比较级+and+比较级。

27.moreinteresting【解析】多音节形容词interesting，比较级前加more。

28.hard-working【解析】as...as...中间用形容词原级。

29.more;faster【解析】“The+比较级...,the+比较级...”结构。much的比较级是more；fast的比较级是faster。

30.elder/older;older【解析】“姐姐"可以用eldersister或oldersister；“大两岁”用比较级older。

31.heavier【解析】两者比较“谁更重”，heavy的比较级是heavier（变y为i再加-er）。

32.moreimportant【解析】多音节形容词important，比较级前加more。

33.narrower【解析】narrow的比较级。

34.worse;worse【解析】“越来越糟”，bad的比较级是worse。

35.themostfamous【解析】“最著名的歌手之一”，用最高级。

III.句型转换

36.oneyearolderthan【解析】Tom16岁，我15岁，所以他比我大一岁。

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