八年级英语形容词比较级和最高级实用教案

1、用以修饰名词用以修饰名词(mng c)，表示事物，表示事物的特征的词。的特征的词。e.g. long, empty, cheap, hungry, etc.在句中作定语(dngy)、表语、宾语补足语等成分第1页/共34页第一页，共35页。e.g. He is a good student.I have something important to tell you.当形容词修饰由当形容词修饰由some-,any-,no-,every-构成的不定构成的不定(bdng)代词时代词时,形容词要放在这些形容词要放在这些不定不定(bdng)代词的之后代词的之后. e.g.Is there anythin

2、g interesting in todays newspaper ?第2页/共34页第二页，共35页。The trees turn green in spring.We are alone on the island.只能作表语，不能作定语只能作表语，不能作定语(dngy)的形容词的形容词你能说出几个？你能说出几个？alone afraid awake asleep alive able第3页/共34页第三页，共35页。形容词和宾语一起形容词和宾语一起(yq)构成构成复合宾语复合宾语e.g.We must keep the classroom clean.He made us happy.

3、Colour it green.第4页/共34页第四页，共35页。LetLets fill s fill in the in the blanks,blanks, 第5页/共34页第五页，共35页。词词 尾尾 变变 化化原级原级比较比较级级最高最高级级单音节词在词尾加单音节词在词尾加-er(比较比较级级)或或-est(最高级最高级)tall hard 以不发音的以不发音的e接尾的词加接尾的词加r或或stlargewide以重读闭音节结尾的词以重读闭音节结尾的词,应双应双写辅音字母再加写辅音字母再加er或或estbig hot 以辅音字母加以辅音字母加y结尾的词变结尾的词变为为i再加再加er,或

4、或esthappy dry 多音节词和多数双音节词在多音节词和多数双音节词在其前面加其前面加more 和和most difficult popular 1. 1. 规则规则(guz)(guz)变化变化tallertallest harderhardestlargerlargestwiderwidestbiggerbiggesthotterhottesthappierhappiestdrierdriestmore difficultmost difficultmore popularmost popular第6页/共34页第六页，共35页。原级原级goodwellbadillmanymuchli

5、ttlefarold比较级比较级最高级最高级2、不规则变化(binhu)bestbetterworseworstmoremostlessleastfarther farthestfurther furthestolder oldestelder eldest第7页/共34页第七页，共35页。more difficult than the more difficult than the other one.other one.第8页/共34页第八页，共35页。Tom is as tall as Mike. as+形容词原形(yunxng)+asThere are as many students

6、 in our school as yours. I dont have as much money as you do.第一个as后的形容词做定语修饰名词(mng c).将该名词(mng c)及有关修饰语全列在第一个as后.第9页/共34页第九页，共35页。 否定 not as+形容词原形+as “和 不一样” 或 not so+形容词原形+as “不及(bj)不如 Tom is not as tall as Mike.Tom is not so tall as Mike. 第10页/共34页第十页，共35页。This truck is big enough to carry 5 tons.

7、 so+ 形容词原级+that丛句 such+名词(mng c)that丛句He is so big that he cant enter the room by the door . too+原级+ to do sth.He is too young to join the army. 形容词原级+ enough to do sth. 第11页/共34页第十一页，共35页。倍数(bish)词/half+as+形容词原形+as Tom is three times as old as Mike.My school is twice/half as large asYours.第12页/共34页

8、第十二页，共35页。 比较级+than This bridge is longer than that one. Our school is larger than theirs. 倍数(bish)词+比较级+than Our school is three times larger than theirs. 第13页/共34页第十三页，共35页。 第14页/共34页第十四页，共35页。“The+比较级，the+比较级” “比较级比较级+and+比较级比较级” The smaller the house is, the less it will cost us the heat. In spr

9、ing, the days are getting longer and longer. 第15页/共34页第十五页，共35页。the+比较级+ofJhon is the taller of the two.第16页/共34页第十六页，共35页。表示(biosh)两者之间的选择，可使用“Which is+ 比较级，or?” 表示表示(biosh)不及另一方时，使用不及另一方时，使用“less+原级原级+than”Which is longer, this one or that?This park is less beautiful than that one. 第17页/共34页第十七页，共

10、35页。one of the+最高级+名词(mng c)复数最高级+of (in/among)This is/ was the最高级最高级+名词名词(mng c)+that定定语从句语从句Lu Xun is one of the greatest writers last century. This is the worst film that I have seen these years. Of all the movie stars, I think Zhang Ziyi is the best. 第18页/共34页第十八页，共35页。掌握(zhngw)几种同义句转换 1. He is

11、taller than I. =I am not as/so tall as he . 2. I study harder than Li Ming.= Li Ming doesnt study as hard as I .第19页/共34页第十九页，共35页。3. He is taller than any other student in his class. = He is taller than the other students in his class.= No one/Nobody is taller than he in his class.= He is the talle

12、st (student)in his class.第20页/共34页第二十页，共35页。 4. I prefer maths to English. =I like maths better than English. 5. The box is too heavy for him to carry. = The box is so heavy that he cant carry it. = The box is not light enough for him to carry.第21页/共34页第二十一页，共35页。注意点注意点 形容词最高级前一定要用形容词最高级前一定要用thethe，

13、副词，副词最高级前可省略最高级前可省略在比较级中为了避免重复，在在比较级中为了避免重复，在thanthan后后常用常用oneone，thatthat，thosethose等词来替代等词来替代前面提到前面提到(t do)(t do)过的名词过的名词 * *This pen is shorter than that This pen is shorter than that one.one. * *The weather here is warmer The weather here is warmer than that of Shanghai.than that of Shanghai.第22

14、页/共34页第二十二页，共35页。第23页/共34页第二十三页，共35页。1. The bread is _ than these cakes A. very delicious B. much delicious C. more delicious D. as delicious2. Lin Tao jumped _ in the long jump in the school sports meeting A. far B. farther C. farthest D. quite far3. When they met in the hotel . They talked and lau

15、ghed _A. happily B. happy C. happier D. happiestCCA第24页/共34页第二十四页，共35页。 4. In our city its _ in July ,but it is even _ in August A. hotter hottest B. hot hot C. hotter hot D. hot hotter 5. Hainan is a very large Island .It is the second _ island in china. A. large B. larger C. largest D. most larges

16、t 6. An elephant is _ than a tiger . A. heavy B. very heavy C. the heaviest D. heavierDCD第25页/共34页第二十五页，共35页。 7. A horse is _ than a dog . A. much heavy B. more heavier C. much heavier D. more heavy 8. Emma always makes a lot of mistakes . She is _. A. care B. careful C. carefully D. careless 9. Whi

17、ch subject is _ , physics or chemistry ? A. interesting B. most interesting C. more interesting D. the most interesting CDC第26页/共34页第二十六页，共35页。10. He is _ enough to carry the heavy box . A. strong B. stronger C. much stronger D. the strongest 11. Li lei often talks _ but does _ so everyone says he is a good boy . A. less more B. few much C. more little D. little many AA第27页/共34页第二十七页，共35页。 第28页/共34页第二十八页，共35页。第29页/共34页第二十九页，共35页。 第30页/共34页第三十页，共35页。第31页/共34页第三十一页，共35页。第32页/共34页第三十二页，共35页。第33