三四單元重難點(diǎn)復(fù)習(xí)及習(xí)題

1、1、 規(guī)則變化 單音節(jié)詞和少數(shù)雙音節(jié)詞，加詞尾-er，-est來構(gòu)成比較級(jí)和最高級(jí)。構(gòu)成法原級(jí)比較級(jí)最高級(jí)一般在原級(jí)末尾加-er，-est tall greattallergreatertallestgreatest以不發(fā)音的e結(jié)尾的單音節(jié)詞詞只加-r，-st nice large nicerlargernicestlargest以一個(gè)輔音字母結(jié)尾的閉音節(jié)單音節(jié)詞，雙寫結(jié)尾的輔音字母，再加-er，-est Hotbig fat thin(瘦）/ Hotter bigger fatter thinnerhottestbiggestfattestthinnest “以輔音字母+y”結(jié)尾的雙音節(jié)詞，

2、改y為i，再加-er， -est easy Busyhappy/funny/early/ easierBusiereasiestbusiest其他雙音節(jié)詞和多音節(jié)詞，在前面加more，most來構(gòu)成比較級(jí)和最高級(jí)(另外由形容詞構(gòu)成的副詞比較級(jí)都是在前面加more，由過去分詞轉(zhuǎn)化而成的形容詞，比較級(jí)都是在前面加more)。BeautifulHard-workingOutgoingLoudlytiredMore beautifulMore hard-workingMore outgoingMore loudlyMore tiredMost beautifulMost hard-workingMos

3、t outgoingMost loudlyMost tired 2、不規(guī)則變化原級(jí)比較級(jí)最高級(jí)Good/wellbetterbestBad /badlyworseworstold（老的）older/elderoldest/eldestmany/much（多的）moremostlittle（少的）lessleastfar（遠(yuǎn)的）farther(距離更遠(yuǎn)的）Further(程度更近一步）farthestfurthest一、形容詞的原級(jí)1、 用“as+形容詞+as” 例如：Tara is as quiet as Sam Nelly speaks as quietly as Larry2、 否定句用“

4、not so+形容詞+as”句型. Tara is not so tall as Sam Nelly speaks not so quietly as Larry二、形容詞的比較級(jí)(一)、比較級(jí)的用法總結(jié)： 1、比較級(jí)的標(biāo)志是than,形容詞和副詞的比較級(jí)前，可用 much, even,a little ,a lot 修飾 2、 當(dāng)A 和B做比較時(shí)時(shí)，用“A+ 謂語動(dòng)詞+ 比較級(jí)+ than B”Tara is taller than Sam Tara is more outgoing than SanNelly runs faster than Larry Nelly has longer

5、hair than Larry 3、“越來越” 比較級(jí)and比較級(jí)”。worse and worse. 多音節(jié)比較級(jí)用“more and more形容詞原級(jí)”形式。如： more and more popular4、 The+比較級(jí)。，the+比較級(jí) 越。，越。The earlier,the better5、 比較A、B兩事物, Which is taller,A or B6、 Bettys hat is bigger than mine=my hat三、最形容詞的最高級(jí)1、 三者或三者以上比較，一般有表示范圍的詞組，比如 in our class, of the three 等詞組出現(xiàn)時(shí)用最

6、高級(jí) 例如：Tom is the tallest of the three He runs the fastest in our class 形容詞最高級(jí)前通常必須用定冠詞 the，the+最高級(jí)，例如：Sun Cinema is the biggest movie theater in the world 太陽電影院是世界上最大的電影院。 2、 使用最高級(jí)時(shí)候，注意以下幾點(diǎn);表示“最之一”，用one of the+最高級(jí)+名詞復(fù)數(shù) He is one of the tallest students in our class 他是我班最高的學(xué)生之一Shanghai is one of the

7、biggest cities in China.上海是中國(guó)最大城市之一。 “the+序數(shù)詞+最高級(jí) 第二長(zhǎng)” The Yellow River is the second longest river in China當(dāng)最高級(jí)前有“的”時(shí)，最高級(jí)前不加the my best friend Which is the tallest, A ,B or C?對(duì)比Which is taller,A or B? 1. My brother is two years _(old)than me.2. Tom is as _(fat) as Jim.3. Is your sister _(young) tha

8、n you? Yes,she is.4. Who is _(thin),you or Helen? Helen is.5. Whose pencil-box is _(big),yours or hers? Hers is.6. Marys hair is as _(long) as Lucys.7.Ben _ (jump) _ (high) than some of the boys in his class.8._ Nancy sing _ (well) than Helen? Yes, she _. 9.Fangfang is not as _ (tall) as the other g

9、irls.10.My eyes are _(big) than _ (she). 11.Which is _(heavy),the elephant or the pig?12.Who gets up _(early),Tim or Tom? 13._the girls get up_(early) than the boys?No,they_.14. Jim runs _(slow). But Ben runs _(slow).15.The child doesnt_(write) as _(fast) as the students.1、The Changjiang River is th

10、e_(long)river in China.2、Annie says Sally is the _ (kind) person in the world.3、Toronto is _ city in Canada. (large)4、Playing computer gamesis_ of all the activities.(interesting).5、He is _（tall） of the three.6、Which lesson is _ (difficult) in the Book ?7、That is _(easy) of all.1、 He is one of the_(

11、friendly) people in the class, I think.2、 The Yellow River is one of _rivers in China. Along B longer C the longest D、longest1、Chang Jiang River is the _ in the worldA、 third longest B、Three longestC、 third long D、third longer2、China is _ country in the world.A. the third largest B. the largest thir

12、d C. the third large D. a third largest4、The Changjiang River is one of _ in the world.A. the longest river B. longest riversC. the longest rivers D. longer rivers1、 - Which is_ , the sun, the moon or the earth?- Of course, the moon is.A.smallB.smallerC.smallestD.the smallest2、Which movie theater ha

13、s _(friendly) service, Town Cinema, Screen City or Movie Palace?3、Who has _ oranges now, Jim, Lily or Lucy?A. much B. biggest C. Better D. the most4、Whos _(careful), Tom,Jim or Kate? 練習(xí)1、The air in Beijing is getting much _ now than a few years ago.A. cleanB. cleanerC. cleanestD. the cleanest2、Mobil

14、e phones are very popular now and they are _ than before.A. cheapB. cheaperC. cheapestD. the cheapest3、I study English as_as my brother.A.hardB. harderC. hardest4、She learns English _ than her sister.A. good B. better C. best5、The_ you work, the more you will learn.A. hard B. harder C. Hardest 4、The

15、 city is becoming _.A. more beautiful and moreB. more beautiful and beautifulC. more and more beautifulD. more beautiful and beautifuler5、Mother is _ in my family.A. busy B. busier C. the busiest D. more6、This book is_ that one， but_ than that one.A. as difficult as; expensive B. as more difficult as; more expensiveC. as difficult as; more expensive D. more difficult as; as expensive7、I think the story is not so _ as that one.A. interesting B. interested C. more interesting D. most interesting二、2.Alice writes _(carefully ) than I.3.This story is _( in