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RevisionTalk about the picturesDa Mao is as short as San Mao.Da Mao is as handsome as San Mao.Da Mao runs as fast as San Mao.Talk about the picturesThe pig is not as (so) clever as the monkey.原级比较原级比较The pig doesnt run as(so) fast as the monkey.结构：结构： as + adj/ adv原级 + as 和 一样 not as/ so +adj/adv原级 +as不如.那样 常用副词常用副词 very, quite, rather, pretty 修饰修饰原级。原级。(3) 分数分数/倍数倍数 as + adj/adv原级原级 +aseg. The blue pen is one third as long as the red pen.The red pen is three times as long as the blue pen. as + adj/adv原级 + aspossiblesb can/could尽可能尽可能 .eg. We must speak English as often as possible/we can.Talk about the pictures1. Jim, late2. Tom, later3. Maria, the latestTalk about the pictures1. Mr. Monkey, busy2. Mr. Duck, busier3. Mr. Rabbit, busiestMr. Monkey is busy.Mr. Duck is busier (than Mr Monkey).Mr. Rabbit is the busiest of all.规则变化：规则变化：1. 直接在原级后加直接在原级后加 er/ est.2. 以以e结尾的词加结尾的词加r/st.3.以辅音字母结尾的双音节以辅音字母结尾的双音节词，变词，变y为为i再加再加 er/ est.4. 重读闭音节且只以一个辅重读闭音节且只以一个辅音字母结尾的双音节词，应音字母结尾的双音节词，应双写这个辅音字母，再加双写这个辅音字母，再加er/est。5. 多音节词在词前加多音节词在词前加more/most.braver/bravest nicer/niceststronger/ strongesthappier/happiestbigger/biggestfatter/fattestmore difficultmost difficlutbad/badlyillmanymuchgoodwelloldlittle farworse/ worstmore/ mostbetter/bestolder/oldestelder/eldestless/ leastfarther/farthestfurther/furthesteg.He is _ (old)than me. I have an _ (old) sister.olderelderThe computer is more important than the fridge.基本句子结构。基本句子结构。主语主语 + be + 比较级比较级 + than The red apple is bigger than the green apple. a little, much, a lot,even 修饰比较级，表示比较的程度。修饰比较级，表示比较的程度。The red apple is a little/ much/a lot bigger than the green apple.The computer is much/ a little /a lot /even more important than the fridge.用用“ 比较级比较级 + and + 比较级比较级”结构，表示结构，表示 “越来越越来越.”The weather is getting warmer and warmer. 天气越来越暖和。Our country is becoming more and more beautiful.我们的国家变得越来越美丽。用用 “ the + 比较级，比较级， the +比较级比较级”的结构，表示的结构，表示 “越越 越越”The more you eat , the fatter you will be.你越吃就会越胖。你越吃就会越胖。注意比较对象要相同。注意比较对象要相同。他的房间比我的大。His room is bigger than mine. (me)The food in Sihuan is more delicious than that of Hunan.基本结构。基本结构。主语主语 + be/ 行为动词行为动词 + the + 最高级最高级 + 范围。范围。Tom is the tallest in our class.The cow runs （the） fastest of the three animals.副词最高级前的副词最高级前的 “the” 可以省略。可以省略。one of + the +adj.最高级最高级+n.复数。复数。 .中中最最之一之一用用 “比较级比较级+than +any other +n.单数单数” 表示最高级。表示最高级。He is one of the tallest boys in our class.比其它任何一个比其它任何一个.都都.Bicycles are safer than any other vehicle. Which animal runs the fastest,the dog, the horse or the cow?序数词序数词可以修饰可以修饰最高级最高级。表示。表示“第几第几.”The Yellow River is the second longest river in China.He is the third tallest boy in our class.Exercise1.写出下列形容词或副词的比较级和最高级。写出下列形容词或副词的比较级和最高级。small _ _ long _ _happy _ _ difficult _ _important _ _ early _ _hard _ _ lovely _ _interesting _ _ quickly _ _happily _ _ bad _ _ more/most lovelymore/ most quickly1) I think Tom is _student in our class, because he never tidy his desk. A. the laziest B. laziest C. lazier2) Tom runs as _ as me. A. quick B. quickly C. more quickly3) The more exercise you take, the _you are. A. weaker B. healthier C. worse4) Wei Hua runs _than Ji Fang.A. more slowier B. more slowly C. slowlierABBB
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