-比较级和最高级.doc

学大教育个性化教学教案 Beijing XueDa Century Education Technology Ltd.学科：英语 任课教师： 沈雅婕 授课时间： 2010 年 02 月 25、27日（星期 四、六 ）姓名刘佳斌年级初三性别女总课时 第 36+37 次 课教学课题Chapter 9-比较级和最高级教学目标了解这单元的重点词组及近义词辨析比较级和最高级难点重点比较级和最高级的常考句型课堂教学过程课前检查作业完成情况：优 良 中 差 建议_过程Step 1、Checking her homework.Step 2、重点短语及短语辨析bit by bit_ in return_try ones best to do sth _ come true _give out _ at the latest _数千年 _ 抓虫子_be filled _ = be full _ cultivate _1. 辨别：find， look for，discover， find out的区别：look for寻找；find找到；find out（经过一番努力）发现（真相等）；discover（作出重大）发现；invent发明；create创造2. 辨别：alive，live，living， lively的区别： alive 多用作表语，用于修饰人或动物，意为“活着的”。作定语，放在被修饰词的后面。The man is still alive (=living). 这人还活着。Is the dog alive or dead? 那条狗是活的还是死的？This is a fish alive.这是一条活鱼。He is the oldest man alive in the world. 他是活在世界上的最老的人。(2)live作动词读/liv/，作形容词读/laiv/,意为“活的，现场直播的”,一般用于动物，作定语通常放在被修饰名词之前。The cat was playing with a live mouse.这只猫正在玩弄一只活老鼠。It was a live broadcast, not a recording.那是现场直播，不是转播。(3) living 意为“活着的，现存的”，可指人，也可指物，可作表语或定语。作定语时可前置也可后置。This is a living fish. 这是一条活鱼。He is the greatest living novelist in China. 他是中国活着的最伟大的小说家。只有living前加the方可表示“活着的人”，作主语时，视作复数。 The living are more important to us than the dead. 活着的人对我们来说比死去的人更重要。(4) lively 读/laivli/,意为“有生气的，活泼的，生动的，（颜色）鲜明的”， 可以指人或物，可作定语或表语；但它没有“活着的”意思，而其他三个都有。Young children are usually lively. 小孩子们通常是活泼的。 He told a very lively story. 他讲了一个生动的故事。 What lively colours！多么鲜明的色彩！练一练：用alive/ live/ living/ lively填空He makes his class _.There arent many pandas_ in the world today.Yang Zhengning is one of the greatest scientists _ in the world.Step 3、比较级和最高级1）形容词和副词的等级变化规则：单音节词和少数双音节词：1.一般在词尾加 er 或 -est cold colder coldest fast _ _2.以不发音的字母e结尾的单词，直接加 r 或 -st nice nicer nicest fine _ _3.以重读闭音节词结尾的单词（辅音+元音+辅音），应先双写辅音字母，再加- er 或 est big bigger biggest thinthinnerthinnest fat _ _ hot4.以 “辅音字母+y” 结尾的单词，先改 “y”为 “i”，再加 er 或 est heavyheavierheaviest early-earlier-earliest easy _ _5. 多音节和部分双音节词： 以-ful，-ing结尾的双音节词一般加more，most。在词前加 more 或 the most interesting more interesting the most interesting2）不规则的形容词和副词的比较级和最高级：much / many _ _ little _ _ few _ _old _ _ far _ _bad /ill _ _ good / well _ _注意：1. 形容词最高级前要加the，副词最高级前可要可不要。2. 有物主代词和所有格修饰时，最高级之前不加the。 Her best subject is English.注意：有少数单音节词，如glad，fond，tired，pleased（皆为表语形容词）通常加more与most分别构成比较级和最高级。3）形容词与副词比较级和最高级的重点句型归纳 比较级+thanThis room is smaller than that one. This story is more interesting than that one. as+原级+asThis cake is as big as that one. Swimming is as exciting as climbing. not as/so+原级+as “与不一样“Jim is not as/so tall as Li Lei. Japanese is not so/as useful as English.English is more useful than Japanese.= Japanese is not so/as useful as English. -er and -er或者more and more +多音节的形容词原级，“ 越来越“When winter comes, the days get colder and colder. My hometown is becoming more and more beautiful.(5) the+比较级, the+比较级 “ 越.越.“The busier she is, the happier she feels. The more we get together, the happier well be.(6) the+形容词或副词的最高级+in/of/among+比较范围，“最“He is the tallest of the three. Jim writes most carefully in his class. This picture is the most beautiful among these. (7) one of the+最高级+名词的复数+in/of , “ 最之一“Rose is one of the most careful girls in her class.Ann studies the hardest of all the students in our class.(8) 可修饰比较级的词有：much, far, still, even, no, any, a lot, a little, a bit等.A kangaroo is even taller than a man. Please come here a little earlier.The job is far more difficult than he thought. Li Lei jumps much farther than Jim does.(9) sb + be + the 比较级 + of the two. (两个之中比较的那一个, sb包含在两个之中)Tom is the taller of the two. = Tom is taller than the other boy.(10) + be +the + 序数词 +最高级 +单数名词 + 范围, 表示是.的第几.She is the second tallest student in our class. 她是我们班第二高的学生.(11) + be + the 最高级 that 某人 have/ has ever + 过去分词.This is the most interesting book that I have ever read.这是我看过的最有趣的书.1. She is the tallest of the three. = She is _than the _.2. Li Lei runs fastest in his class. = Li Lei runs faster than _ in his class.注意： 比较级前可以用表示程度的数量词、倍数、百分数等，用作状语。Im a head taller than you. 我比你高一个头。This desk is two feet longer than that one. 这张桌子比那张长两尺。 同类东西进行比较。The weather in Beijing is colder than that in Shenzhen. 北京的天气比深圳冷。 形容词的最高级前没有the就不起比较作用，只表示“非常，极其”之意，相当于very。Thats a most interesting book. 那是一本非常有趣的书。Hes a most honest man. 他是个非常诚实的人。不用比较级的形式对事物进行比较，我们常见有以下词组：be like, look like, look the same, be the same as, be different from, be unlike, be alike.This story is like that one. Ann looks like her mother. Lily and Lucy look the same.Lily and Lucy are alike. Steel is different from / unlike iron.Han Meis shoes are the same size as mine.常考的比较级与最高级的句型：1 Who / Which + be +比较级 , A or B ?Who is taller, Tom or John?Which is more expensive, a bicycle or a computer?2 Who / Which + be +最高级, A, B, or C ?Who is the tallest, Tom, Jack, or David? Which is the most expensive, a bicycle, a motorcycle, or a car? 倍数的表达法：1.“A + be + 倍数 + as +形容词原级 + as + B”。This tree is three times as tall as that one. 这棵树是那棵树的三倍高。His father is twice as old as he. 他父亲的年纪有他两倍大。2.“A + be + 倍数 +形容词比较级 + than + B ”The Yangtze River is almost twice longer than the Pearl River. 长江差不多比珠江长两倍。The dictionary is exactly five times more expensive than that one. 这本字典比那本恰好贵5倍。3.“A + be + 倍数 + the + 计量名词( thesize / length / height）+ of + B ”Thisstreetisfourtimesthelengthofthatstreet这条街是那条街的四倍长。 Thishillisfourtimestheheightofthatsmallone这座山的高度是那座小山的四倍。（比那座小山高三倍）Do the exercises：1. A pig is _ than a dog. A. much heavy B. more heavier C much heavier D. more heavy 2.Which is _ season in Beijing? I think its spring.A. good B. well C. best D. the best 3. The city is becoming _. A. more beautiful and more B. more beautiful and beautiful C. more and more beautiful D. more beautiful and more beautiful4. Which does Alice like _, Chinese or Art? A. well B. best C. better D. much 5. The Changjiang River is one of _ in the world. A. the longest river B. longest rivers C. the longest rivers D. longer rivers 6. Li Ming speaks Chinese_better than me. A. very B. more C. a lot of D. much 7.There are_boys in Class Two than in Class Four. A. more B. many C. most D. best 8. Who has _ oranges now, Jim, Lily or Lucy? A. much B. biggest C. better D. the most 9. Mother is _ in my family. A. busy B. busier C. the busiest D. more 10. No one is _ Lucy in the class. A. so tallest as B. as taller as C. so high as D. as tall as 11. She knows _ about history than most people. A. more B. much C. mostD. many12. It takes _ time to go there by plane than by train. A. littleB. much C. less D. least13. To my joy, it was _ than I thought. A. more easy B. more easier C. much easy D. much easier14. The house is not _ for so many people. We must find _ one. A. big enough, a bigger B. enough big, a bigger C. big enough, biggerD. enough big, bigger15. Canada is larger than _ country in Asia. A. any B. any other C. otherD. another16. The weather in China is different from_.A. in America B. one in America C. America D. that in America 17. New York is _ in the United States.A. larger than any city B. larger than any other city C. bigger than any cities D. biggest of all the cities18. I believe that _ you work, _ result (结果) youll get.A. the harder; the better B. the harder; a betterC. the more hard; the more better D. more hard; more better19. The Yellow River is _ river in China.A. the two long B. the second longer C. the second longest D. two longest20. John has three sisters. Mary is the _ of the three.A. most cleverest B. more clever C. cleverest D. cleverer21. If there were no examinat