形容词，副词的比较级、最高级变化规则.一般在词尾直接加er或est，例如，tall-taller-tallest，long-longer-longest2.以不发音的字母e结尾的单词在词尾直接加r或st，例如，nice-nicer-nicest3.以辅音字母+y结尾的词，把y变为i，再加er或est，例如，heavy-heavier-heaviest4.重读闭音节，末尾只有一个辅音字母，双写这个辅音字母，再加er或est，例如，big-bigger-biggest fat thin red wet5.部分双音节词和多音节词分别在原级前加more构成比较级和most构成最高级，例如，slowly-more slowly-most slowly；beautiful-more beautiful-most beautiful ( tired often )二、不规则变化原级比较级最高级good/well better bestmany/much more mostbad/ill/badly worse worstlittle less leastold older/elder oldest/eldestfar farther/further farthest/furthestⅣ形容词，副词等级的用法一、原级的用法1.只能修饰原级的词，very，quite，so，too例如，He is___________to walk on.他太累了以至于不能再继续走了。
My brother runs _______________I can‘t follow him.我弟弟跑得那么快以至于我跟不上他。
2.原级常用的句型结构(1)“甲+动词+(倍数)+as+形容词原级+as+乙”表示“甲和乙程度相同”或“甲是乙的几倍”例如，汤姆和凯特年龄一样大。
______________________________________________ 汤姆和迈克跑得一样快。
______________________________________________ (2)“甲+动词+not+as/so+形容词原级+as+乙”甲不如乙…例如，这个房间不如那个大。
______________________________________________他走路不像你那样慢。
______________________________________________二、比较级的用法1.可以修饰比较级的词，much，a lot，far，…的多a little，a bit，…一点儿even甚至，still 仍然例如，Lesson One is ________ easier than Lesson Two.第一课比第二课容易得多。
.汤姆看起来甚至比以前更年轻。
_____________________________________________ .这辆火车比那辆跑地快得多。
______________________________________________ She drives____________more carefully than her husband.她开车仍然比她丈夫还认真。
2.比较级常用的句型结构(1)“甲+动词+(倍数)+形容词比较级+than+乙”表示“甲比乙…”或“甲比乙…几倍”例如，汤姆比凯特高。
______________________________________________这个房间比那个大三倍。
______________________________________________我今天早晨起床比我妈妈还早。
______________________________________________ (2)“甲+be+形容词比较级+than+any other+单数名词(+介词短语)”表示“甲比同一范围的任何一个人/物都……”，含义是“甲最……”。
个体与整体相比，不能包括个体，常用“any other + 单数名词”来进行比较。
eg.1）Betty(是个体) is cleverer than any student in her class(是体). ( ×)正：Betty is cleverer than any other student in her class.=Betty is cleverer than anybody else in her class.=Betty is the cleverest in her class.2)China is bigger than any country in Africa. 中国比非洲的任何一个国家都大。
3) China is bigger than any other country in Asia. 中国比亚洲的任何一个其他国家大。
迈克比他们班上任何一个其他的同学到______________________________________ 迈克在他们班到校最早。
______________________________________________注意：Mike gets to school earlier than_____ student in Tom’s class.迈克比汤姆班上任何一个学生到校都早。
(3)“甲+be+ the+形容词比较级+of the two+……”表示“甲是两者中较……的”。
例如，Look at the two boys. My brother is ________________看那两个男孩，我弟弟是两个当中较高的那个。
(4)“比较级+and+比较级”表示“越来越……”。
例如，He is getting_____________________. 他变得越来越高了。
The flowers are __________________________________. 花儿越来越漂亮。
He does his homework________________________________.他做作业越来越认真了。
(5)“the+比较级，the+比较级”表示“越……，越……”。
例如，The more careful you are，the fewer mistakes you’ll make.你越认真，犯的错误越少。
你学习越努力，你的成绩就会越好。
________________________________________ (6)“特殊疑问词+动词+形容词比较级，甲or乙？”例如，Which is bigger，the earth or the moon？哪一个大，地球还是月球？谁画得比较好，詹妮还是丹尼？______________________________________________ 7）.比较级必须是同类事物相比（即as; than后的词应与主语是同类事物），注意常用漏的代词有：that; those; one; oneseg. 1)The apples in this basket are redder than in that basket.2)This knife isn’t so new as that.3)我们的教室比李丽的大。
______________________________________________3.最高级常用句型结构(1)“主语+动词+the+形容词最高级+单数名词+in/of短语”表示“……是……中最……的”。
例如，Tom is the tallest in his class./of all the students.汤姆是他们班上/所有学生当中最高的。
这个苹果是五个当中最大的。
______________________________________________我是我们班跳得最远的。
______________________________________________ (2)“主语+be+ one of the+形容词最高级+复数名词+in/of短语”表示“……是……中最……之一”。
例如，北京是中国最大城市之一。
______________________________________________ (3)“特殊疑问词+be+the+最高级+甲，乙，or丙？”用于三者以上的比较。
例如，Which country is the largest，China，Brazil or Canada？哪一个国家最大，中国，巴西还是加拿大？你最喜欢哪一个季节，春天，夏天还是秋天_______________________________________ （4）.表示“第二、第三……”时，可在最高级前加“second , third, …”（但“第一”习惯上不能用first通常用最高级来表示）长江是世界第三长河______________________________________________巩固练习1. My ____ sister is two years _____ than I.A. older; olderB. elder; elderC. older; elderD. elder; older2. Can you do your work with _____ money and _____ people?A. less; fewB. less; fewerC. little; lessD. few; less3. I didn’t know which was _____, so I took them both.A. goodB. betterC. bestD. the best4. There was _____ house in front of the hill.A. a wooden old fineB. an old wooden fineC. a fine old woodenD. an old fine wooden5. The population （人口）eijing is larger than _____ Shengzhen.A. /B. the one inC. that ofD. those of6. What an _____ story! I’m _____ in it.A. interested; interestingB. interesting; interestedC. interested; interestedD. interesting; interesting7. The jacket is _____ nice, but it’s _____ more expensive than that one.A. much; muchB. very; veryC. much; veryD. very; much7. After tunning She is too tired to walk ______.A. fartherB. furtherC. farthestD. furthest8.–Do you think the chicken tastes ______?-She cooked it _____, I think.A. good; goodB. well; wellC. well; goodD. good; well9. Li Lei is running _____ now.A. more and more slowlyB. slowier and slowierC. slowly and slowlyD. more slowly and more slowly10.Lin Tao speaks English very well, and ______.A. so does his friendB. his friend does soC. so did his friendD. so he did11.He worked _____ quietly _____ no one knew he was there.A. so; asB. so; thatC. very; thatD. too; to12.You must be more ______, Jim. Look, you didn’t write _____.A. carefully; carefulB. careful; carefullyC. careful; carefulD. carefully; carefully13.The twins are together most of the time. So they never fell ______.A. lonelyB. aloneC. happilyD. friendly14.New York is _____ in the United States.A. larger than any cityB. larger than any other cityC. bigger than any citiesD. biggest of all the cities15.This street is much ______ than that one.A. straightB. straighterC. straightestD. more straighter16.Of the two pencil-boxes, the boy chose ______ expensive one.A. lessB. the leastC. the lessD. the most17.Would you please say it _____? I still can’t follow you.A. more slowB. much slowC. more slowlyD. much slowly18.This kind of skirt looks ______ and sells ______.A. nice; wellB. nice; goodC. well; wellD. good; nice19. –How was the weather yesterday?-It was terrible. It rained _____. People could _____ go out.A. hardly; hardlyB. hardly; hardC. hard; hardD. hard; hardly20.He hurt her so _____ that she cried.A. badB. badlyC. hardlyD. worse21.The girl is _____, but her younger sister is even _____.A. tallest; tallerB. taller; tallestC. tall; tallestD. tall; taller22.This chair is not _____ for him to ______.A. strong enough; sitB. enough strong; sitC. enough strong; sit inD. strong enough; sit on23.Tom does everything _____, so his teacher speaks ______ of him.A. careful; highB. carefully; highlyC. careful; highlyD. carefully; high24.You don’t look so _____ as usual. You’d better go and see a doctor at once.A. wellB. goodC. niceD. bad1—10 DBBCCBDADAA 11—24 BBABBCCADBDDBA。