比较级教案.doc

英语学科学案模板形容词的比较级科目英语适用年级初中二年级适用区域全国使用人教版教材的地区课时数量/时间1课时/60分钟教师姓名学生姓名学习目标1、 掌握形容词比较级的构成规则。2、 能够正确使用形容词的比较级对事物进行比较。学习方法建议1、首先正确理解形容词比较级的运用。2、进行相应的综合练习。知识点形容词比较级的用法。形容词的比较级变化规则。形容词比较级的用法。 使用比较级时应注意的问题教学过程：一、预习对上节课课后作业中的问题进行查漏补缺二、知识讲解知识点1： 形容词的比较级的用法：用于两者之间，表示“其中一个比另外一个更”或“较”，后面通常用连词than连接另一个比较对象，其基本句型是：主语+谓语或者系动词+形容词比较级+than+比较对象。Eg. Jim is taller than Mike. Lily is more beautiful than Lucy.知识点2：形容词比较级的变化规则：规则变化以及不规则变化。1 规则变化A 单音节 词尾加er：tall-taller, short-shorter, long- longerB 单音节以e结尾的只加r：fine-finer, large-larger.C 以一个元音字母加一个辅音字母结尾并且是重读闭音节的，要双写最后一个辅音字母，再加er：hot-hotter, big-bigger.D 以 辅音字母加y结尾的单音节单词和部分双音节单词变比较级时，要先把y变为i，再加er：early-earlier, busy-busier.E 多音节单词或者部分双音节单词在变比较级时没在前面加more：outgoing- more outgoing, difficult-more difficult.(部分双音节单词的比较级有两种变化方式： clever-cleverer, more clever.)2 不规则变化good/well-better bad/ill- worse many/much- more old-older/elder far-farther/further little-less知识点3：比较级的用法: (一)当两个人或事物（A和B）进行比较时，我们需要用到形容词（副词）的原级或者比较级 1 表达“A和B一样”，用asas的结构。 公式: A+be动词+as+形容词原级+as+B A+实义动词+as+副词原级+as+B Eg I am as tall as you.我和你一样高。 He runs as fast as I. 他跑得和我一样快。 2表达“A不如B”用not asas的结构。 公式: A+be动词的否定形式+as+形容词原级+as+B A+助词的否定形式+动词+as+形容词原级+as+B Eg I am not as tall as you.我没有你高。 He doesnt run as fast as I. 他没有我跑得快。 3 表达“A大于B”用“比较级+than”的结构。 公式: A+be动词+形容词比较级+than+B A+实义动词+副词比较级+than+B Eg I am taller than you.我比你高。 He runs faster than I. 他跑得比我快。 (二)关于形容词、副词比较级的更多用法 1比较级前面可以加上表示“优劣程度”的词或短语，意思是“更”，“得”。常见词有much, a little, even, a lot, a great deal等。 Eg He is much taller than I.他比我要高得多。 I jump a little higher than he.我跳得比他高一点点。 2.比较级前面可以加上表示具体数量差别的结构,表示具体“大多少”，“小多少”，“长多少”，“短多少”等。 Eg I am two years older than he.我比他大两岁。 This building is 20 meters higher than that one. 3“比较级+and+比较级”表示“越来越”。 It is getting warmer and warmer天气越来越暖和。 He is running faster and faster他跑得越来越快。 0ur country is becoming more and more beautiful我们祖国越来越美了。 4“the more， the more”表示“越，就越”， The more，the better.多多益善。 The more careful you are,the fewer mistakes you will make.你越细心，犯错就越少。5“the moreof the two”表示“两个当中较。的一个” The taller of the two boys is my brother知识点4使用比较级时应该注意的问题(错题分析)1 Your hair is longer than me.(mine)2 The weather in Beijing is colder than Guangzhou.(that in Guangzhou)3 Picking apples is much better than have class.(having class)4 Jim is younger than any student in his class.(any other student)5 Jim from class 1 is taller than any other student in Class 2.(any student)6 The city is getting more beautiful and more beautiful.(more and more beautiful)7 The busier he is, happier he feels.(the happier he feels)8 Science is as more interesting as art.(as interesting as)三、典型例题1） - Are you feeling _?- Yes，Im fine now. A. well B. better C. good D. quite better答案：B. quite修饰原级，well的比较级为better.2）The experiment was_ easier than we had expected.A. more B. much more C. much D. more much 答案：C. much可修饰比较级，因此B，C都说得通，但easier本身已是比较级，不需more，因此C为正确答案。3）If there were no examinations, we should have _ at school.A. the happiest time B. a more happier timeC. much happiest time D. a much happier time答案：D。四、课堂搭配练习A级 写出下列形容词与副词的比较级与最高级形式：long_ _ wide _ _ fat _ _heavy_ _ slow _ _ few_ _brightly_ -_far_ _quickly _ _ happy_ -_ good _ _ bad _ _ well _ _badly _ _ ill _ _ little _ _many _ _ much _ _keys: longer longest wider widest fatter fattest heavier heaviest slower slowest fewer fewest more brightly most brightly farther/further farthest/furthest more quickly most quickly happier happiest better best worse worst better best worse worst worse worst less least more most more most用所给词的正确形式填空：1. My sister is two years _ (old ) than I.2. The boy is not so _ (interesting) as his brother. 3. She will be much _ (happy) in her mew house. 4.The red coat is as_(long) as the blue one.5.My sister is not so_(tall) as me/I.6.Mike does his homework as_(carefully) as Mark.7.They dont get up as_(early) as We.8.He runs as _(fast) as she.9.Which is _ (beautiful),the black coat or the blue one?10. Of the two girls, I find Lucy the _ (clever).Keys：1 older 2 interesting 3 happier 4 long 5 tall 6 carefully 7 early 8 fast 9 more beautiful 10 more clever/ clevererB 级选择正确的答案11 Now air in our town is _ than it used to be. Something must be done to it.A. very good B. much better C. rather than D. even worse12 I feel _ better than yesterday. A. more B. very C. the D. far13. It was very hot yesterday, but it is_ today. A. even hotter B. more hotter C. much more hot D. much hot 14. Mrs Black has got_ instead of getting any better. A. more bad B. a little worse C. much badly D. a lot of worse 15.Through the window we can see nothing but _ buildings. A. tall very many B. very many tall C. very tall many D. many very tall 16. Our classroom is_ larger than theirs. A. more B. quite C. very D. much 17.This necklace looks _ and_ sells_.A. well, well B. good, nice C. nice, good D. nice, well18.The population of Shangdong is_ than that Sichuan.A. smaller B. larger C. less D. largeC级19. China is larger than _ in Africa A. any other country B. other countries C. the other country D. any country 20 Tom is stronger than _ in his class. A. any other boy B. any boys C. any boy D. other boy 21 When spring comes, it gets_. A. warm and warm B. colder and colder C. warmer and warmer D. shorter and shorter 22 By and by, _ students in our class came to like English. A. more and more B. much and much C. many and many D. less and least 23. At last he began to cry _. A. hard and hard B. more hard and more hard C. harder and harder D. less hard and less harder 24. When spring comes the days get _ and nights _. A. short; long B. long; short C. longer; shorter D. shorter; longer 25. _ I look at the picture, _ I like it. A. The best; the more B. The more; the less C. The more; less D. More; the more 26. _ he read the book, _ he got in it. A. The more; the more interesting B. The less; the more interesting C. The more; the more interested D. More; more interested 27. _ you come back, _ it will be. A.The quicker; the best B.The sooner; the better C. Faster; the better D. The sooner; better 28. I like_ one of the two books. A. the older B. oldest C. the oldest D. older 29. China has a large population than _ in the world.A. all the countries B. every country C. any country D. any other country30.This book is _ on the subject .A. the much best B. much the best C. very much best D. very the bestKeys:11-15 D D A B D 16-20 D D B D A 21-25 C A C C B 26-30 C B A D B五、课后作业A级1. Bob never does his homework_ Mary. He makes lots of mistakes.A. so careful as B. as carefully as C. carefully as D. as careful as2.Usually Xiao Li spends _ time doing homework than XiaoChen does.A. little B less C. few D. fewer3. He feels _ today than yesterday.A. tired B. more tired C. more tireder D. much tired4. The line is _ than that one.A. more longer B. not longerC. much more longer D. many more longer5. This box is_ that one. A. heavy than B. so heavy than C. heavier as D. as heavy as 6. His father is_than his mother. A. older four years B. as four years older C. four years older D. bigger four years7. Which is_country, China or Japan? A. the large B. the larger C. larger D. largest 8. Which do you like _, tea or coffee? A. well B. better C. best D. most 9. This work is _ for me than for you. A. difficult B. most difficult C. much difficult D. more difficult 10. The Great Pyramid is about 137 metres high today, but it was once_ A. higher B. highest C. high too D. more high B级11. Dont you think its _ not to write the letter? A. well B. better C. best D. good 12.Hainan is a very large island. Its the second_ island in China.A.large B. larger C. largest D. most large13.A horse is _ than a dog.A.much heavy B.more heavier C.much heavier D.more heavy14. She looks _ than she does.A. the more older B. very older C. much older D. more older15 When we speak to people, we should be _ . A. as polite as possible B. as polite as possibly C. as politely as possible D. as politely as possibly 16 This book is_ that one, but_ than that one. A. as difficult as; expensive B. as more difficult as; more expensive C. as difficult as; more expensive D. more difficult as; as expensive 17. I think science is _ than Japanese. A. much important B. important C. much more important D. more much important 18. This pencil is_ than that one. A. longest B. long C. longer D. as long 19. My mother is no _ young. A. shorter B. longer C. little D. few 20. These children are _ this year than they were last year. A. more tall B. more taller C. very taller D. much taller C级21.If you want to book a round trip ticket, youll have to pay _ $30.A.more B. other C. the other D. another22.I liked to play football when I was young. _.A.So he was B.So was he C.So did he D. So he did23. The earth is _ the moon. A. as 49 times big as B. 49 times as bigger as C. 49 times as big as D.as big as 49 times24. The garden is becoming _.A. more beautif