1、 形容词的比较级定义:形容词是用来修饰物体的形状,大小,长度,属性,特点等,位于名词的前面。 而形容词的比较级表示两者间的比较。结构: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,即同类事物间的比较。 在比较级前面使用 much,表示程度“强得多” 。如:A watermelon is much bigger than an apple.西瓜比苹果大得多。 very, quite 一般只能修饰
2、原级,不能修饰比较级。 2 “become + 形容词比较级 + and + 形容词比较级”是“变得越来越 ”的意思,and 连接同一个形容词的比较级。如:It becomes warmer and warmer when spring comes. 春天来了,天气变得越来越暖和了。 注:表示“越来越”时,若比较级是“原级 + er”构成的,则常用“比较级 + and + 比较级”形式;若比较级是“more + 原级 ”构成的,需用“more and more + 原级形式” 。如:Our school is becoming more and more beautiful. 我们的学校变得越
3、来越美丽。3在含有 or 的选择疑问句中,如果有两者供选择,前面的形容词要用比较级形式。如:Who is taller, Tim or Tom? 谁更高,Tim 还是 Tom?形容词比较级构成规律 1一般情况下,比较级在后面加 ;如:small smaller short shorter 2在重读闭音节(即:辅音元音辅音)中,先双写末尾的辅音字母,比较级加-er,如:big bigger hot hotter3以不发音 e 结尾的单音节词,比较在原级后加 ;如:large larger nice nicer 4以“辅音字母y”结尾的双音节词, ,比较级加 ;如:easy easier heav
4、y heavier5多数多音节词,比较级在前面加 ;如:beautiful more beautiful different more different 6有少数形容词的比较级是不规则的,必须熟记。如:good/well _ bad _ old many/much little far 专项练习:一、写出下列形容词的比较级old_ young_ tall_ long_short_ strong_ big_ small_fat_ thin_ heavy_ light_nice_ good_ beautiful_low_ high_ slow_ fast_二、翻译句子:1 、谁比 Jim 年纪大
5、?是你。_ is _than Jim? _ are2 、谁比 David 更强壮?是 Gao Shan._ _ than David? Gao Shan _.3 、谁的铅笔更长,他的还是她的?我想是她的。_ pencil is _,_or_?_is,I think.4、谁的苹果更重,你的姐姐的还是你的弟弟的? 我的弟弟的。_ apples _ _,your _ or your _?My _ _.5、你和你的叔叔一样高吗?是的。_ _as _as your uncle?Yes,I am.6、他和他的朋友 Jim 一样年轻。He _ as _ as _ _ Jim.7、她和她的双胞胎哥哥一样胖吗?
6、不,她比他瘦。_ _ as _ as_ twin _?No, _ _ than him.8.Yang Ling 每天睡得比 SuYang 晚。Yang Ling _ to _ _ than Su Yang every day.9.我跳得和 Mike 一样远。I _ as _ as Mike.10.Tom 比你跑得快吗?不是的,他和我跑得一样快。_ Tom _ _ than you?No,he _. He_ as_ as_.11.多做运动,你会更强壮。_ more exercise,youll _ _ soon.12.我的科学很好,但是语文不好。I _ _ at Science.But I do
7、nt _ well in Chinese.13. 你放风筝比王兵放得高吗?不,我比他放得低。_you_the kite_than Wang bing?No,I_it _than_.14.我喜欢游泳。我所有的朋友都游得比我慢。I like_.All my_ _ _than me. 形容词的最高级定义: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。结构:三者或三者以上物体比较用最高级, 最高级通常在词尾加 est.句子中有表示范围的词或短语。如:of the three, in our class 等等。He is the tallest in our cla
8、ss. 他在我们班里是最高的。注意:形容词最高级前一定要有定冠词 the,而副词最高级前则不需要。形容词最高级构成规律:1一般情况下,最高级在后面加 ;如:small smallest short shortest2在重读闭音节(即:辅音元音辅音)中,先双写末尾的辅音字母, ,最高级加-est ;如:big biggest hot hottest3以不发音 e 结尾的单音节词,最高级在原级后加 ;如:large largest nice nicest 4以“辅音字母y”结尾的双音节词, ,最高级加 ;如:easy easiest heavy heaviest5多数多音节词,最高级在前面加 ;如
9、:beautiful most beautiful different most different 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。如:good bad old many/much little far 注意: 形容词最高级前一定要有 the, 而副词最高级则不需要。总结规则变化构成法 原级 比较级 最高级单音节词+er/est short shorter shortestcold colder coldestwide wider widest以不发音 e 结尾的词+r/stlarge larger largestbig bigger biggest单个辅音字母结尾
10、的重读闭音节词,双写末尾辅音字母+er/esthot hotter hottestheavy heavier heaviest以辅音字母+y 结尾的词,变 y 为i+er/estbusy busier busiestimportant more important most important多音节词在前面+more/mostbeautiful more beautiful most beautiful不规则变化专项练习:一、写出下列形容词的最高级。口诀 原级 比较级 最高级 口诀 原级 比较级 最高级两多 many/ much more most elder(家庭中表长幼) eldest两好
11、 good/ well better best一老 oldolder(岁数大,东西旧)oldest两坏病 bad/badly/ill worse worst farther(距离远) farthest一少 little less least远距离 farfurther(程度深,深入)furthest3.tall 16.dark 32.beautiful 4.young 19.big 34.expensive 6.strong 20.thin 35.important 9.high 21.hot 36.different 10.slow 23.large 39.bad/ill 12.high 2
12、4.heavy 40.far 14.cheap 26.easy 41.old 15.bright 29.pretty 30.funny 二、单项选择1. The whale is the ( ) animal.A. heavy B. heavier C. heaviest D. ligthest2. ( ) hair is the longest?A. Who B. Whose C. Whom D. What 3. The giraffe is the ( ) animal.A. tallest B. smaller C. tall D. smallest4. Ruby is the ( )
13、dancer.A. best B. good C. better D. bestest5. Josh is the ( )at singing.A. bad B. good C. worst D. better课后作业一、根据句意填入单词的正确形式。1My brother is two years _ (old) than me.2. Is your sister _ (young) than you? Yes, she is.3. Who is _ (thin),you or Helen? Helen is.4. Whose pencil-box is _ (big), yours or h
14、ers? Hers is.5Ben jumps _ (high) than some of the boys in his class. 6Does Nancy sing _ (well) than Helen? Yes, she does. 7My eyes are _(big) than hers. 8Which is _ (heavy), the elephant or the pig? 9Who gets up _ (early), Tim or Tom? 10Do the girls get up_(early) than the boys? No, they_.11Jim runs
15、 _ (slow). But Ben runs _ (slow).二、选择。( )1. The yellow shoes are than the blue ones.A.expensive B. expensiver C. more expensive( )2. A cow is bigger than a mouse.A.much B.more C.many( )3. Whos the ,Jean,Joan or Jennet?A.thinner B.thinest C.thinnest( )4. Tim is than Jack.A.funny B.much funny C.funnie
16、r( )5. Im taller than others in my class.Im .A.tall B.tallest C.the tallest( )6. Who can sing better Rose?A.than B.then C./( )7. I have books than you have.A.many B.much C.more( )8. His uncles house is very .A.old B.older C.oldest( )9. My bike is ,but his bike is .A.new,new B.new,newer C.new,newest(
17、 )10. Please clean your room.Its now.A.clean B.dirty C.tidy四、翻译句子。1谁比 Jim 年纪大?是你。_ is _than Jim? _ are2谁比 David 更强壮?是 Gao Shan._ _ than David? Gao Shan _.3谁的铅笔更长,他的还是她的?我想是她的。_ pencil is _ ,_ or _?_is, I think.4Yang Ling 每天睡得比 Su Yang 晚。 Yang Ling _ to _ _ than Su Yang every day. 5你放风筝比王兵放得高吗?不,我比他放
18、得低。_ you_the kite _than Wang Bing?No,I _ it _than _ .6我的姐姐起得比我早。My _ _ up _than me.7她不擅长体育。但我跳得没有她高。She doesnt _ _ in PE. But I dont _ _than _.五、用所给词的正确形式填空。1. Maria is _(thin). Lucy is _(thin) than Mary.2. Mike is _(heavy) boy in his class.3. Tom is as_ ( tall) as Jim.4. I am much _( well) than yes
19、terday.5. This skirt is _( expensive) of the three.6. The weather today is _(hot) than it was yesterday.7). Lucy writes _(careful) than her brother.8)Today is _(busy) day this week.9)That is _ (easy ) of all.10). He is _ (clever ) boy in the class.11). John is _ ( short ) than Tom.12). This box is _ ( heavy ) than that one.