(精品)Grammar：Comparativeandsuperlativeadjectives.ppt

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1、 Unit 1 Friends Grammar To learn how to form comparatives and superlativesTo learn to use comparatives and superlativesOpetitiontestswimmeradj.(bad的比较级的比较级)更差，更差，更糟，更坏更糟，更坏adj.(bad的最高级的最高级)最差，最差，最糟，最坏最糟，最坏n.高，高度高，高度n.重量重量abbr.(=second)秒秒n.竞赛，比赛；竞争竞赛，比赛；竞争n.测试，考查测试，考查n.游泳者游泳者Words review1.My best fri

2、end is Max.2.He is the tallest boy in our class almost 1.75 metres.3.She is shorter than I am.Try to translate the following sentences from this unit and then tell why we use the words in red.Could you figure out how to form those words and when to use them?to test your sense of observationto test y

3、our ability of short-term memory to test your ability to highlight the language points1.The _ one in Fifth Street!2.The bathroom is the _ place to chat and watch TV.3.The Sun is about 1,300,000 times _ than the Earth.4.She looked down and saw her body became _ and _.5.My dog is the _ animal of all.b

4、iggestbestlargersmallersmallercleverest6.I think the blue dress is _.7.Nearly everybody enters for The _ Garden Competition each year,but Joe wins every time.8.My _ friend is Max.9.He is the _ boy in our class almost 1.75 metres.10.She is _ than I am.prettierNicestbesttallestshorter We can enjoy _ s

5、ky if there is less pollution.Thats true.We must do something to make the city greener.A.a bluer B.the bluer C.the blue D.the bluest Tom often says he has _ IQ in our class.Maybe he does.But he wont be a top student if he doesnt work harder.A.a high B.a higher C.the higher D.the highestComparative a

6、nd superlative adjectivesComparative and superlative adjectives形容词有三种形式：原级，比较级和形容词有三种形式：原级，比较级和最高级，表示形容词说明的性质在程最高级，表示形容词说明的性质在程度上的不同。度上的不同。形容词的比较级用于两个人或事物的比形容词的比较级用于两个人或事物的比较，最高级用于三个或三个以上人或事较，最高级用于三个或三个以上人或事物的比较。形容词的比较级和最高级是物的比较。形容词的比较级和最高级是在形容词的原级形式的基础上变化的，在形容词的原级形式的基础上变化的，可分为规则变化和不规则变化。可分为规则变化和不规则

7、变化。规则变化规则变化形容词原级形容词原级比较级比较级最高级最高级单音节形容词单音节形容词 tallsmall词尾词尾+er词尾词尾+esttallertallestsmallersmallest形容词原级形容词原级比较级比较级最高级最高级以字母以字母e结尾的形容词结尾的形容词nicefine以辅音字母以辅音字母+y结尾的形容词结尾的形容词prettyeasy把把y改成改成i+er+stnicernicestfinerfinest把把y改成改成i+estprettier+reasierprettiesteasiest形容词原级形容词原级比较级比较级最高级最高级重读闭音节重读闭音节,结尾只有一个

8、结尾只有一个辅音字母辅音字母slimbig多音节和部分双音节形容词多音节和部分双音节形容词beautifulimportant双写最后一个双写最后一个辅音字母辅音字母+estslimmerslimmestbiggerbiggest双写最后一个双写最后一个辅音字母辅音字母+er前面前面+more前面前面+mostmore beautifulmore importantmost beautifulmost important特殊形容词原级特殊形容词原级比较级比较级最高级最高级goodbadlittlemuch/manyoldfar better bestworse worst不规则变化不规则变化l

9、essleastmoremostolder/elderoldest/eldestfarther/furtherfarthest/furthestAdjectiveComparativeSuperlativecleanshortcutehappylazybigcleanercleanestshortercutershortestcutesthappierhappiestlazierlaziestbiggerbiggestComplete the table below.AdjectiveComparativeSuperlativethinsaddifficultinterestinggoodba

10、dthinnerthinnestsaddermore difficult saddestmost difficultmore interesting most interestingbetterbestworseworst形容词比较级的用法形容词比较级的用法形容词的比较级用于两个人或事物的形容词的比较级用于两个人或事物的比较，其结构形式如下比较，其结构形式如下:She is shorter than I am.My book is more interesting than his book.主语主语+谓语谓语(系动词系动词)+形容词比较级形容词比较级+than+对比成分。对比成分。形容词最高

11、级的用法形容词最高级的用法形容词最高级用于三个或三个以上的形容词最高级用于三个或三个以上的人或物进行比较，其结构形式为：人或物进行比较，其结构形式为：This is the biggest apple I have ever met.She is the best student in her class.主语主语+谓语谓语(系动词系动词)+the+形容词最形容词最高级高级+名词名词+表示范围的短语或从句表示范围的短语或从句Linda is taller than Nancy is.LindaNancyNancy is shorter than Linda is.Please use comp

12、aratives/superlatives to compare the following people or things.￥50.00￥100.00The white bag is _ the green one.The green bag is _ the white one.cheaper thanmore expensive thanLindaNancyKateLinda is the tallest girl of the three.Kate is the shortest girl of the three.￥50.00￥100.00￥150.00The purple bag

13、 is _ one of all the bags.The green bag is _ one of all the bags.the cheapestthe most expensiveMillie Sandy Amy Peter Kitty SimonHeight(cm)157170160173155171Weight(kg)45504455405350 m swimm-ing(sec.)403830343635Drawing competi-tion9/1010/109/105/106/108/10English test10/10 8/109/106/108/107/10Read t

14、he profile and complete the sentences.1.Simon is _(tall)Sandy.2.Peter is _(tall)of the six students.3.Sandy is _(heavy)Millie.4.Peter is _(heavy)of the six students.5.Among the six students,Millie is _(slow)swimmer.taller thanthe tallestheavier thanthe heaviestthe slowest6.Amy is _(fast)swimmer of t

15、he six students.7.Millies drawing is _ (beautiful)Peters.8.Sandys drawing is _ (beautiful)in her class.9.Millies English is _(good)Simons.Millies English is _ (good)in her class.the fastestmore beautiful thanthe most beautifulbetter thanthe best形容词的比较级用于两个人或事物的比较，形容词的比较级用于两个人或事物的比较，最高级用于三个或三个以上人或事物的比最高级用于三个或三个以上人或事物的比较。较。主语主语+谓语谓语(系动词系动词)+形容词比较级形容词比较级+than+对比成分。对比成分。主语主语+谓语谓语(系动词系动词)+the+形容词最高形容词最高级级+名词名词+表示范围的短语或从句。表示范围的短语或从句。1.To find out how to plan for future2.To learn to describe a person1.Review the Grammar.2.Make some sentences using comparatives and superlatives.HomeworkThank you!