英语人教版八年级下册U7 Section A Grammar Focus-4a.ppt

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1、Unit7 Whats the highest mountain in the world?Section A Grammar FocusTo learn comparatives and superlatives with adjectives and adverbs and fluent compare specific usage and common sentence patterns.Learning aims 一般一般加加oldold以以e结尾结尾加加largelarge重读闭音节结重读闭音节结尾，末尾只有尾，末尾只有一个辅音字母一个辅音字母双写双写该辅音字母该辅音字母,加加thi

2、nthin辅音字母辅音字母加加 y 结尾结尾改改y为为 加加easeas 部分双音节词部分双音节词或多音节词前或多音节词前面加面加在前加在前加 usefulcomfortable useful comfortable一一比较级、最高级变化规则比较级、最高级变化规则-er,-est-r,-st-er,-est-er,-estmore,mosterestrstnernestiieriestmoremoremostmost二、形容词和副词比较级的不规则变化二、形容词和副词比较级的不规则变化 原级原级many/much good/wellbad/badlylittlefar 比较级比较级最高级最高级口

3、决：口决：better worseless more farther两多两多两好两好两坏两坏一少一少一远一远bestworstleastfarthest(距离远距离远)mostfurtherfurthest(程度深程度深)importantweteasymanyWho is quicker!fastcoldhardslowhotseriousgoodcarefulhotlittledifficultangrilyWho is the most quickly?Argue is as as Miss Ke.句型句型1：as+形容词形容词 +as原形原形Argue和和Miss Ke一样高。一样高。

4、tallbeautiful句型句型2.=“前者前者不及不如不及不如 后者后者 Wu Dongyi isCheng Helin.原形原形原形原形吴东艺没有程鹤麟那么胖。吴东艺没有程鹤麟那么胖。not so/fat asasnot so+形容词形容词 +as=not as+形容词形容词 +as 句型句型1：比较级比较级+than older than（）An elephant is_ than a tiger.A.heavy B.very heavy C.the heaviest D.much heavierD中国比美国古老得多。China is the US.much修饰比较级的词有：修饰比较级

5、的词有：much,a lot,a bit,a little,even still,far 口诀：多多少少甚至还远口诀：多多少少甚至还远表示表示“是是.的几倍时的几倍时”.This garden is that one.这个花园大那个花园这个花园大那个花园3倍。倍。表示表示“是是.的几倍时的几倍时”/+/ofThis hill is that small one.This garden is that one.3 times larger than +3 timesfour times the height ofas large as倍数倍数比较级比较级than倍数倍数 as 原级原级as倍数倍

6、数 the heightweight length 倍数的表达倍数的表达+比较级比较级+than+B+as 原级原级as+B+the height/weight/length of+BA+谓语谓语+倍数倍数Feifei is句型句型1：比较级比较级+than any other+名词名词taller than any other boy.句型句型2：比较级比较级+than the other+名词名词taller than the other boyFeifei is单数单数复数复数Feifei is the tallest of the three.=s.A isof all the egg

7、s.句型句型3：in these eggs.the biggestinofthe+最高级最高级+句型4：One of+the+最高级最高级+名词复数名词复数“最最的的之一之一”One of student A Li.最高级最高级sthe strongest is 名复名复谓单谓单1.The Amazon River is one of the _ rivers in the world.Its a little _ than the Yangtze River.2.Qomolangma is 8,844.43 meters_.Its one of the most _ places for s

8、erious mountain climbers.3.No ocean in the world is as _ as the Pacific Ocean.4.Although Japan is _ than Canada,it is_smaller.（）1.Nancy and Lucy are twins.In some way they look the same,but Nancy is _ than Lucy.A.tall B.taller C.tallest （）2.The population of China is larger than any other _ in the w

9、orld.A.country B.countries C.the other country D.other countries（）3.The plane flew ten times as_as the kite.A.higher B.the higher C.high D.highest（）4.This elephant is three times the _of that panda.A.weigh B.weight C.weighs D.weighing（）5.Toms picture is _than mine,but not _ my sisters.A.well,better

10、B.better,as well as C.better,better D.better,as good as（）6.He is _ than _ boys in the football teamA.clever,any other B.cleverer,the other C.cleverest,any D.cleverest,the others（）7.I think autumn is _ of the four seasons.A.the better B.the best B.C.best D.better（）8.Everybody knows Mount Qomolangma i

11、s the _ mountain in the world.A.higher B.highest C.tall D.taller用法一：同级比较用法一：同级比较句型句型1 1：as+形容词_+as句型句型2:2:意为“前者不及/不如 后者=not _+形容词_+as原级原级so原级原级A+谓语+倍数+比较级）than+B.A+谓语+倍数+as+形容词原级as+B.A+谓语+倍数+the height/weight/length(高度)of+B.句型句型2:倍数的表达倍数的表达句型句型1:比较级+than any other+单数单数名词句型句型2:比较级+than the other+复数复数名词用法二：常用的比较级用法二：常用的比较级用法三：最高级用法三：最高级句型句型1:the+最高级+of或in句型句型2:One of+the+最高级最高级+名词复数数），意为“最的之一”即即:名复谓单最高级名复谓单最高级