八年级第三单元 知识点讲与练 Unit 3 I’m more outgoing than my sister. 吴镇宇 Feynman 杨威 杨阳洋 曹格 姐姐Joe 黄磊 黄多多 陆毅 贝儿 一、语法： 形容词和副词 的比较等级 a.原级对比 as—as b.比较级对比 --- adjer+than c.最高级 the+adjest+---in(of) 1、形容词和副词的同级对比 ①as…as… 和……一样 I’m as tall as you. ② not as(so) +形容词或副词原形+ as 不如…… 一样（在否 定句中常用so 来代替as）如， Beier can’t run fast Duoduo. ③ so/too/very/quite/rather---+原级 在以上两个句型中形容词或副词一定要用原级 ( ) Your father eat so much as my father. A.isn’t B. doesn’t C.don’t D. aren’t ( ) Your room isn’t clean mine. A.so--as B. as--so C.as--as D. A or C ( ) You must write carefully my father. A.as -- as B. so--as C.as---so D. so—so ( ) Duoduo runs very but Yangyang runs even . A.fast;fast B. faster;fast C.fast;faster D. faster;faaster ④.less / least +原级结构示表示降级的比较级.意为“……不如 ……”.表示一方不如另一方 如：This room is less beautiful than that one . 这个房间不如那个房间漂亮。
注意：“not as /so+形容词或副词原形+as” 可以与less / least +原级 +than 进行转换 如：It is not as/so warm today as yesterday. 今天不如昨天暖和 He did not come as /so early as Wang Lin. 他不如王林来得早 ( ) It is today yesterday. A.less warm;than B. more worm;than C.warmer;than D. much warmer ;than ( ) He came early Wang Lin. A.less;than B. more;than C.as;as D. much ;than 2、比较级（两者之间） 基本句型 (1) 两者相比: Which is+比较级,A or B? 如: Which is （大）, the sun or the moon? (2)比较级+ than. 如: Mike is （高） than John. (3)有"of the two”, 用the+比较级. 如: Lucy is the more careful of the two. (4) 比较级前可用much/a lot //far/ a little /a bit/even/ any 等修饰. 如: ( )This book is interesting than that one. A.much more B. more much C. least more D. more less The blouse I bought yesterday is a little less expensive. To play basketball is far more enjoyable to the boy. A +（be;实义动词）+比较级+than +B 主语+谓语动词+adj./adv. 比较级+ than+ 对比成分 (5) 比较级+and+比较级,表“越来越……” It becomes hotter and hotter . (热) (6)“ the+比较级，the+比较级”,表“越……，越……” The （高）you stand, the （远） you will see. 练习： ( )Mike looks _____ than Paul, but they are of the same age. 2. A. youngest B. the youngest C. younger D. very younger ( )The__ carefully you write , the mistakes you’l make. 2. A. more;more B. more;fewer C. less;fewer D. less;less( ) you eat, you can get. A. The more;the fater B. The less;the fatter C. The more;the fatter D. The more;the thinner 3.最高级 ⑴ the + 最高级 +of/ in a. in 表示“在…内(指某范围内)” 可以跟表示单位,组织, 时间等单数名词. b. of表示属性(指在同类的人,物中)后可接 the +基数词 / the +基数词+名词复数 / all +the +复 数名词/all eg. Jim works hardest of us all. My mother is the busiest in my family ⑵ 疑问词+ 动词+ 最高级 ⑶ which …like best, A, B or C? ( ) Changjiang River is on of the in the world. A. longer rivers B. longest river C. longer river D. longest rivers 注意：形容词的最高级前面必须加定冠词the，但当形容词 最高级前面有物主代词修饰时，则不加the。
副词前面的 the可以省略例如： （正）This is my best friend. （误）This is my the (the my) best friend. （正）Today is the happiest day of my life. （误）Today is happiest day of my life. 练习： ( )She is the tallest in his class. = She is ______ than student in his class. A.taller;any other B.more taller;any other C.taller;any D. much taller;any others 形容词/副词 中招链接 形副词：1.( 09 )27.—Helen, can I wear jeans and a T-shirt to the evening party? —OK. But a dress might be __ . A. good B. better C. bad D. worse 2.( 11 ) 29. —What do you think of the dress? —Wonderful. I don’t think I can find a _________ one. A. good B. better C. bad D. worst 3( 10 )23—Excuse me，sir. The shoes are a bit small for me —Don’t worry．I’ll change them for a size A smaller B smallest C larger D largest 4.( 12 ) 25. Yao Ming is ______Chinese basketball player that ever played in NBA. A. tall B. taller C. tllest D. the tallest 5.(13) 25. My grandpa told a good story, but I told a ______ one. A. good B. better C. best D. worse 6.(14) It’s possible to get $100 a day in this company, and some days you can get ______. A.much B. more C. little D. fewer 7.（15）25.—What a clear blue sky! —Yes, I have never seen sky. A. a more beautiful B. a most beautiful C. the more beautiful D. the most beautiful 8.（ 16 ）25.I have been to quite a few restrurants, but I can say this one is . A.good B.better C.the better D. the best 二、知识点 1. Make的词组： make friends 交朋友 make mistakes 犯错误 make sb.dsth 使某人做某事 make the bed 整理床铺 ( ) My mother made me too many computer games. A. not play B. not to play C. don’t play D. to not play 2.关于 both 和all: 都有三中词性，代词/副词/形容词；本单元 主要出现的是副词 顺口溜 “实前系助情后” eg: We are all good students so our teachers all like us. ( ) The twins top of the students so her parents them. A. are both;like both B. both are;both like C. are both;both like D. both are;like both 3. 动词+doing 的词组： Enjoy doing sth. 喜爱做某事。