八年级第八年级第三三知识点讲与练知识点讲与练 Unit 3 Im 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：一、语法：形形容词和副词容词和副词的比较等的比较等级级 a.原级对比原级对比 asasb.比较级对比比较级对比 -adjer+thanc.最高级最高级 the+adjest+-in(of)1、形容词和副词的同级对比asas 和一样 Im as tall as you.not as(so)+形容词或副词原形形容词或副词原形+as 不如 一样（在否定句中常用so 来代替as）如，Beier cant run fast Duoduo.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.isnt B.doesnt C.dont D.arent()Your room isnt 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.soso()Duoduo runs very but Yangyang runs even .A.fast;fast B.faster;fast C.fast;faster D.faster;faaster.less/least+原级原级结构示表示降级的比较级.意为“不如”.表示一方不如不如另一方如：This room is less beautiful than that one.这个房间不如那个房间漂亮。
注意：注意：“not as/so+形容词或副词原形形容词或副词原形+as”可以与less/least+原级原级+than 进行转换进行转换如：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;than2、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 youl 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 thinner3.最高级最高级 the +最高级最高级 +of/in a.in 表示表示“在在内内(指某范围内指某范围内)”可以跟表示单位可以跟表示单位,组织组织,时间等单数名词时间等单数名词.b.of表示属性表示属性(指在同类的人指在同类的人,物中物中)后可接后可接 the+基数词基数词 /the+基数词基数词+名词复数名词复数 /all+the+复数复数名词名词/alleg.Jim works hardest of us all.My mother is the busiest in my family 疑问词疑问词+动词动词+最高级最高级 which like best,A,B or C?()Changjiang River is on of the in the world.A.longer rivers B.longest riverC.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 otherC.taller;any D.much taller;any others形容词形容词/副词副词 中招链接中招链接形副词：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.worse2.(11)29.What do you think of the dress?Wonderful.I dont think I can find a _ one.A.good B.better C.bad D.worst3(10)23Excuse me，sir.The shoes are a bit small for me Dont worryIll change them for a size A smaller B smallest C larger D largest4.(12)25.Yao Ming is _Chinese basketball player that ever played in NBA.A.tall B.taller C.tllest D.the tallest5.(13)25.My grandpa told a good story,but I told a _ one.A.good B.better C.best D.worse6.(14)Its possible to get$100 a day in this company,and some days you can get _.A.much B.more C.little D.fewer7.（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、知识点二、知识点1.Make的词组：的词组：make friends 交朋友交朋友 make mistakes 犯错误犯错误make sb.dsth 使某人做某事使某人做某事make the bed 整理床铺整理床铺()My mother made me too many computer games.A.not play B.not to play C.dont play D.to not play 2.关于关于 both 和和all:都有三中词性，代词都有三中词性，代词/副词副词/形容词；本单元形容词；本单元主要出现的是副词主要出现的是副词顺口溜顺口溜“实前系助情后实前系助情后”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.动词动词+doing 的词组：的词组：Enjoy doing sth.喜爱做某事喜爱做某事finish/mind/stand/practice/keep/-doing sth.()Toms mother will let him go out to play with his friends if he doing his homework.A.finish B.practices C.enjoies D.finishes 4.maybe不等于不等于may be“有动合；无动分有动合；无动分”()he is a doctor=He a doctorA.Maybe;maybe B.May be;may beC.Maybe;may be D.May be;maybe 5.到达到达：get to=arrive at/in=reach但但reach还有够到意思；抽象到达还有够到意思；抽象到达()We should put some medicine on the high place where children cant .A.get B.arrive C.reach D.hold6.词组词组：be similar to 与与-相似相似be the same as 与与-相同相同be different from 与与-不同不同have -in commen 有有-共同点共同点 ()My school is the same yours but its different Bills.A.to;as B.as;from C.from;as D.to;from6.关于词组：关于词组：in fact 实际上；实际上；such as 例如；例如；because of 因为因为+词组词组 because+句子；句子；care about=care for关心；关心；after all 毕竟。