Unit3 形容词副词比较级和最高级课件 人教版英语八年级上册

这是一份Unit3 形容词副词比较级和最高级课件 人教版英语八年级上册，共15页。

形容词副词的比较等级形容词、 副词的原级、比较级和最高级1、分类：形容词和副词有原级、比较级和最高级三级。原级变为比较级和最高级有规则变化和不规则变化两种。2、规则变化:(1)单音节和部分双音节形容词和副词,在原级的后面加上er,est构成比较级和最高级。a)直接加er,est ： clean-cleaner-cleanestb)以重读闭音节结尾的,要双写最后一个辅音字母,后加er,est：big-bigger-biggestc)以辅音字母+y结尾的,先把y改为i再加上er,est：tidy-tidier-tidiest(2)两个音节或两个以上的音节的,在原级前加more / most.beautiful-more beautiful-most beautiful3、不规则变化:原级 比较级 最高级good好的 better更好的 best最好的well好；(身体)好的, bad,badly糟糕的,糟糕地 worse更糟糕的,更糟糕地；(身体)更不舒服的 worst最糟糕的,最糟糕地；(身体)最不舒服的ill(身体)不舒服的 many许多的(可数) more更多的；更 most最多的；最much许多的(不可数)；非常 little少的 less更少的 least最少的far远的；远地 farther更远的；更远地 farthest最远的；最远地 further进一步的(地) furthest最深刻的(地)4、基本句型☆表示两者之间一样。。。时,使用句型： A + 谓语动词 + as + 形容词/副词原级 + as + B He is as tall as his younger sister.他和他妹妹一样高。 He runs as fast as his sister。他和他妹妹跑得一样快。 ☆表示A不如B时, A+ 谓语动词(否定式) + as / so + 形容词/副词原级 + as + B. He is not so / as tall as his younger sister.他没他妹妹高。He doesn't work as hard as his younger sister.他没有他妹妹努力。☆表示A比B。。。时,A +谓语动词 形容词/副词比较级 + than+ BI'm more outgoing than my sister.我比我妹妹更外向。He plays tennis better than his sister.4、基本句型☆表示两者之间一样。。。时,使用句型： A + 谓语动词 + as + 形容词/副词原级 + as + B He is as tall as his younger sister.他和他妹妹一样高。 He runs as fast as his sister。他和他妹妹跑得一样快。4、基本句型 ☆表示A不如B时, A+ 谓语动词(否定式) + as / so + 形容词/副词原级 + as + B. He is not so / as tall as his younger sister.他没他妹妹高。He doesn't work as hard as his younger sister.他没有他妹妹努力。4、基本句型☆表示A比B。。。时,A +谓语动词 形容词/副词比较级 + than+ BI'm more outgoing than my sister.我比我妹妹更外向。He plays tennis better than his sister.比较级特殊结构：1、“比较级+and+比较级”表示“越来越……”。如：The weather is getting warmer and warmer.(天越来越温暖了)2、“the+比较级…,the+比较级…”表示“越…就越…”。如：The more trees we plant,the better it will be.(我们栽的树越多,情况就会越好)/ The harder you try,the greater your progress is.(你越是努力,进步就越大)比较级特殊结构：1、“比较级+and+比较级”表示“越来越……”。如：The weather is getting warmer and warmer.(天越来越温暖了)2、“the+比较级…,the+比较级…”表示“越…就越…”。如：The more trees we plant,the better it will be.(我们栽的树越多,情况就会越好)/ The harder you try,the greater your progress is.(你越是努力,进步就越大)最高级的句型是： 主语(sb./sth) + 谓语动词 +(the) +形容词/副词最高级 +in / of …. 如：Town Cinema is the quietest of all the cinemas in town. He jumped (the) highest of the three (boys).(三个男生中他跳得最高)最高级的特殊结构：1. one of the +最高级+名词(复数)”整个短语为单数含义,谓语要用单数形式。如：The elephant is one of the most important symbols in Thailand.大象是泰国最重要的象征之一。2、“Which / Who+动词+形/副,A,BorC?”句型中,如果有两个选项,形/副用比较级,如果有三个选项,形/副用最高级。如：Who has more friends, you or your sister?Which is the heaviest,a pig,a horse or an elephant?(猪、马、象哪个最重？)用所给词的适当形式填空1. Diana was a little fat in the past.But now she is much_______(瘦的)than before. 2. My mother is the________(busy) in my family. She always has much to do every day. 3.Dumpling House is___________(cheap) restaurant in the city.4.Who do you think listens___________(careful),Jack,Mike or Mark?5.Do you think I am as________(serious) as my father.thinnerbusiestthe cheapestmost carefullyserious1. There are_________sharing bikes in many cities. So there will be________pollution.A.less and less; more and more B.less and less; fewer and fewerC.more and more; less and less D.fewer and fewer; less and less2. Beijing is one of the________in the world today.A.busiest city B.busiest cities C.busy city D.busy cities3.The government says that they are going to build the third__________road in the town. A.wide B.wider C.widest D.the widestCBC4.—How hard you are working，Helen!—We must! President Xi said that_______we are，_______we will be.A.the more hard-working:the luckier B.the hard-working;the lucky C.more hard-working;luckier D.the most hard-working;the luckiest 5. My sister is a little_________than my cousin.A.heavy B.more heavy C.heavier D.the heaviestAC