小学英语形容词的比较级和最高级 ppt课件.ppt

,Lesson 1:,形容词、副词的比较级和最高级,Adj. adv.,用来修饰动词、形容词、其它副词、全句或名词词组及句子的词。e.g.,very, early, quickly, etc.,He runs fast .Today is very hot.Please read it loudly.,用以修饰名词，表示事物的特征的词。e.g. long,tall, short，cheap, hungry, etc.,一般来说，中文意思是“的”的词是形容词，而中文意思是“地”的词是副词。,形容词比较级用于两者（人或事物）之间的比较，表示其中一个比另一个“更”或“较”，后面用连词than连接另一个所比较的人或事物。例如：,1.That ruler is longer than this one.2.Mary is younger than me(I).,“A + be +形容词比较级 + than + B” 意思为“A比B更”,比较级用法：, 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 * 比较应在同类事物中进行.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. very, quite一般只能修饰原级，不能修饰比较级。,比较级 注意,young-yonger-yongest old older -oldest tall-taller -tallest small-smaller -smallest,early-earlier-earliest thirsty-thirstier-thirstiest,1. 一般情况下在形容词或副词后加-er（比较级） 或est（最高级） :,2. 以字母e结尾的形容词，加-r 或- st,4. 以“辅音字母y”结尾的形容词，先改“y”为“i”，再加-er 或-est.,bigbigger -biggest fatfatter-fattest,形容词比较级最高级规则,nice nicer-nicest safe safer -safest,3. 重读闭音节词只有一个辅音字母时，应先双写辅音字母，再 加-er或-est.,一,5.部分双音节词或多音节词前面加more ,most.如:interesting more interesting most interestingfamous more famous most famous,不规则变化,两好、两坏、两多、 一少、一远 、一老.,Read and compare :,younglongfullshortsmalloldfineeasyhungryearlyheavybigred,younger youngest,longer longest,fuller fullest,shorter shortest,smaller smallest,older oldest,finer finest,easier easiest,hungrier hungriest,earlier earliest,heavier heaviest,bigger biggest,redder reddest,healthymanyfamousexcitingcarefullywet hotlittlefew,healthier healthiest,more most,more famous most famous,more exciting most exciting,more carefully most carefully,wetter wettest,hotter hottest,less least,fewer fewest,taller harder larger wider,tallest hardest largest widest,bigger hotter fatter wetter,biggest hottest fattest wettest,happier drier earlier,happiest driest earliest,narrower cleverer,narrowest cleverest,more difficult more popularmore slowly,most difficult most popularmost slowly,少数以-er,-ow结尾的双音节词可加-er或-est,规则变化,better,best,worse,worst,less,more,most,farther/further,older/elder,least,farthest/furthest,oldest/eldest,不规则变化,巧记：特殊形式比较级共有三对二合一坏病两多并两好little意思不是小一分为二有两个一是老来二是远,.其主要句型有：(1)A+be+比较级+than+B e.g Mary is much younger than Sue.(2)(3)疑问句+动词+比较级,AorB? e.g Who draws better ,Tom or Jim?(4) 比较级+ and+比较级，表示越来越e.g the days are getting shorter and shorter.,二.形容词、副词比较等级的用法,A + 行为动词 + 副比 + than + 物体B.Dogs run faster than goats.He studies better than me,最高级概念：,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。,最高级用法：,1）A + am / are / is + the + 形最高级 + 比较范围（of + 人/物，in +地方）.I am the tallest in the class.Pasta is the most delicious food of the three.,2）A + 行为动词 + 副词最高级 + 比较范围（of + 人/物，in + 地方）. Dogs run fastest in the world. He studies best of us.,Jim works hardest of us all.,My mother is the busiest in my family,e.g,4） 疑问词+ 动词+ 最高级5) which like best, A, B or C?,最高级用法：,一、形容词比较等级的规则变化如下：,二、不规则形容词的比较级最高级,练 习,1. tall _ _ 2. nice _ _ 3. strong _ _4. old _ _5. big _ _6. thin _ _7. heavy _ _8. beautiful _ _9. good _ _,taller,stronger,older,tallest,stronges,oldest,bigger,biggest,thinner,thinnes,nicer,nicest,heavier,heaviest,more beautiful,most beautiful,better,best,形容词和副词的比较级和最高级构成： 规则变化1单音节词在词尾加-er比较级， 加-est最高级。原级 比较级 最高级bright brighter brightestyoung younger youngestlong longer longest,2.以字母e 结尾的词只加-r或- st构成比较级和最高级。nice nicer nicestfine finer finestwhite whiter whitest 3.重读闭音节以一个辅音字母结尾的，应先双写辅音字母，再加-er 或-est.big bigger biggest,4.以辅音字母加-y 结尾的词，先把-y变为 I， 再加-er -est.easy easier easiest5.部分双音节词和多音节词分别在原级前加more构成比较级和most构成最高级，eg. slowly-more slowly-most slowly；beautiful-more beautiful-most beautiful,不规则变化:个别形容词的比较级和最高级是不规则变化，需个别记忆。e.g. good (well) better bestbad (badly, ill) worse worstmany (much) more mostlittle less leastfar father/further farthest/furthest,改错：1.Im than you.2.He is than me.3.Youre in our school.4.Who is , you or me ?5.She is in her family.,tall,youngger,shortest,fat,taller,younger,the shortest,fatter,the thinnest,thinest,选择填空1. Which does Jimmy like ,Chinese or Art? A. well B. best C. better D. much2. The Chang jiang River is one of in the world.the longest river B. longest rivers C. the longest rivers D. longer rivers3. of the two women is Mrs Brown. A. The beautiful B. The more beautiful C.More beautiful D. The most beautiful4. My mooncake is nicer his. A. like B. with C. for D. than 5. You are fatter than . A. he B. his C. him D. he is tall6. My hair is longer than . A. my sister B. Kate C. my brothers D. Lucys,C,C,B,D,A,C,16.Mother is in my family. A. busy B. busier C. the busiest D. more busy18.The dumplings are than the noodles,I think. A. more nicer B. much delicious C. very nice D. much more delicious19.She is than me at drawings. A. better B. best C. good D. harder 20.-This blue sweater is too big for me .-Will you please show me a one? A. small B. smaller C. the smallest D. smallest,C,D,A,B,改错,Lesson 9 is more easier than Lesson 10.My mother is younger than your.He is one of tallest boys in his class.Betty is the youngest on the three girls.Mother is the busiest of my family.Jim is shorter of the two boys.,you,the tallest,of,the shorter,in,一1. My school is _, but Toms school is _than mine. (small)2. Rabbits can run _, but tigers can run _ than rabbits. (fast) 3.Pig is _, but elephant is _than pig .(heavy)4. Im _, but she is _ than me. (beautiful) 5. Every day is _. But today is _ than before. (busy) 6My brother is two years _ (old) than me.7. Is your sister _(young) than you? Yes,she is.8. Who is _(thin), you or Helen? Helen is.,Exercise,small,fast,faster,heavier,heavy,more beautiful,beautiful,busier,busy,older,younger,thinner,smaller,9. Whose pencil-box is _ (big), yours or hers? Hers is.10Ben jumps _ (high) than some of the boys in his class. 11Does Nancy sing _(well) than Helen? Yes, she does. 12My eyes are _(big) than hers. 13Which is _(heavy), the elephant or the pig? 14Who gets up _ (early), Tim or Tom? 15Do the girls get up _ (early) than the boys? No, they_.16Jim runs _ (slow). But Ben runs _(slow).,bigger,higher,better,bigger,heavier,earlier,earlier,dont,slow,slower,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 ping-pong.,older,shorter,heavier,smaller,bigger,以How开头的问句（仅限小学阶段）：,How are you? How old? How tall? How long? How big? How heavy? How many? How much?,问身体状况。,问年龄,问身高,问长度,问大小（指外型、形体的大小）,问体重、重量,问多少，物体的数量,问价格,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 five.(6) -How _ is the fish? -Its 2kg.,long,tall,many,heavy,much,big,四，连词成句is, my, This, computer (.) your, is, That, computer (.) teachers desk, this, Is, a (?) is, it, time, What (?) oclock, Its, two (.) time, math, for, Its, class (.) this, Is, your, T-shirt (?) colour, it, is, What (?) warm, Its, today (.) play, Lets, football (.) much, How, it, is (?) yuan, Its, ten (.),This is my computer.,That is your computer.,Is this a teachers desk?,What time is it?,Its two oclock.,Its time for math class.,Is this your T-shirt?,What colour is it?,Its warm today.,Lets play football.,How much is it?,Its ten yuan.,