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1、精选优质文档-倾情为你奉上一、形容词、副词的比较级和最高级的构成规则1大多数单词的变法smallsmallersmallest shortshortershortest greatgreatergreatest clevercleverercleverest narrownarrowernarrowest talltallertallest 2 以不发音e结尾的单音节词，比较在原级后加-r，最高级在原级后加-st；largelargerlargest nicenicernicest 3 先双写末尾的辅音字母，比较级加-er，最高级加-est；bigbiggerbiggest hothotter
2、hottest fatfatterfattest thin-thinner-thinnest sad-sadder-saddest 4以“辅音字母y”结尾的双音节词，把y改为i，比较级加-er，最高级加-est；easyeasiereasiest heavyheavierheaviest busybusierbusiest happyhappierhappiest5其他双音节词和多音节词，比较级在前面加more，最高级在前面加most；beautifulmore beautifulmost beautiful differentmore differentmost different 注意：（
3、1）形容词最高级前通常必须用定冠词 the，副词最高级前可不用。6有少数形容词、副词的比较级和最高级是不规则的，必须熟记。good-better-best 好的well-better-best 身体好的bad-worse-worst 坏的ill-worse-worst病的many-more-most 许多 much-more-most 许多few-less-least少数几个little-less-least 少数一点far-further-furthest 更进一步，程度far-farther-farthest 更远，路程old-older-oldest年老的（指年纪）old-elder-e
4、ldest年老的（指兄弟姐妹的排行）二、形容词、副词的比较级和最高级的用法1“A + be +形容词比较级 + than + B” 意思为“A比B更”。如：This tree is taller than that one. 这棵树比那棵树高。 注意： 在含有连词than的比较级中，前后的比较对象必须是同一范畴，即同类事物之间的比较。 在比较级前面使用much，表示程度程度“强得多”。如：A watermelon is much bigger than an apple.2 “比较级 + and + 比较级”或“more and more +原级”表示“越来越”It becomes warme
5、r and warmer when spring comes. 春天来了，天气变得越来越暖和了。It is getting cooler and cooler.天气越来越凉爽。The wind became more and more heavily.风变得越来越大。Our school is becoming more and more beautiful. 我们的学校变得越来越美丽。3. “the +比较级, the+比较级”，表示“越越”。The more money you make, the more you spend.钱你赚得越多，花得越多。The sooner，the bett
6、er. 越快越好。4.形容词、副词的最高级形式主要用来表示三者或三者以上人或事物的比较，表示“最”的意思。句子中有表示范围的词或短语。如：of the three, in our class等等。如：He is the tallest in our class. 他在我们班里是最高的。5. 比较级与最高级的转换：Mike is the tallest intelligent in his class. Mike is more taller than any other student in his class.【练习】写出比较级和最高级：small fast heavy beautiful
7、busy delicious old young thin big high well early slow shot much long tall nice happy hot fat many far ill bad good little 一1. My school is _, but Toms school is _than mine. And Sallys school is the _. (small)2. Rabbits can run _, but tigers can run _ than rabbits, and cheetahs can run _of the three
8、. (fast) 3.Pig is _, but deer is _than pig, and elephant is the _ (heavy)4. Im _, but she is _ than me. (beautiful) 5. Every day is _. But today is the _ day I have ever had. (busy) 6. I think pizza is the _ food of all. (delicious)7My brother is two years _ (old) than me.8. Is your sister _(young)
9、than you? Yes,she is.9. Who is _(thin),you or Helen? Helen is.10. Whose pencil-box is _ (big),yours or hers? Hers is.11Ben jumps _ (high) than some of the boys in his class. 12Does Nancy sing _(well) than Helen? Yes, she does. 13My eyes are _(big) than hers. 14Which is _(heavy),the elephant or the p
10、ig? 15Who gets up _ (early),Tim or Tom? 16Do the girls get up_(early) than the boys? No,they_.17Jim runs _ (slow). But Ben runs _(slow).二，根据句意写出所缺的单词(1) Im 12 years old. Youre 14. Im than you.(2) A rabbits tail is than a monkeys tail.(3) An elephant is than a pig.(4) A lake is than a sea.(5) A basketball is than a football.三，选出合适的单词完成句子heavy tall long much many big (1) How is the Yellow River?(2) How is Mr Green? Hes 175cm.(3) How are your feet? I wear size 18.(4) How is the white T-shirt? Its 100 yuan.(5) How apples are there in the bag? There are 5.(6) How is the fish? Its 2kg.专心-专注-专业