河南省沁阳一中高中英语《Unit7 The Sea Lesson 3 The Sea WorldPeriod 4 语法精讲》导学案 新人教版必修3.doc

河南省沁阳一中高二英语unit7 the sea lesson 3 the sea worldperiod 4 语法精讲导学案目标:to practice comparison of adjectives（形容词的比较级）课堂互动探究形容词比较级的用法:(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+be.g. 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+be.g. 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+be.g. i am taller than you.我比你高。 he runs faster than i. 他跑得比我快。4. 表示三个或三个以上进行比较，其中某一方超过其他几方面的用“the +最高级+比较范围”e.g. 她是我们班最好的学生。 she is the best student in our class.5. the + 比较级 + of + the +two 表示“两个当中较的一个”e.g. 李明是这两人中更高的一个。li ming is the taller of the two. 两个男孩中较高的那个是我的弟弟。the taller of the two boys is my brother.6. 形容词比较等级前一般可用much, even, a lot, a little, a bit, 等状语修饰，如：1)月亮比太阳小得多。 the moon is much smaller than the sun.2)这本书比那本书厚一点。 the book is a little thicker than that one.7. 形容词比较等级前还可以被表示年龄、倍数等词组修饰。e.g. she is two years older than mike. this mountain is three times higher than that one.注意：在“比较级 + than”这一句型中，作为比较对象的成分不能省略。e.g. 在冬天北京比广州更冷。 in winter its colder in beijing than in guangzhou. (对) in winter its colder in beijing than guangzhou. (错)(二) 关于形容词比较级的其他用法1“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。2“the+比较级，the+比较级”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。3“not+比较级+than”表示“一方不如另一方”；“no+比较级+than”表示“前者和后者一样都不”tom is not taller than jack. = (tom is not so tall as jack.)tom is no taller than jack. = (tom is as short as jack.)4. morethan表示“与其说，不如说”i think she is more shy than unfriendly. 与其说她不友好，不如说她害羞。jack is more hard than clever. 与其说杰克聪明，倒不如说他学习用功。5. “否定词+比较级”表示最高级，表示“再没有比 更”，即”最”之意。（见课文重难句导学2）6. less + adj.原级+than表示“不及；不如”（见课文重难句导学3）7. “主语+比较级+than any other”结构表示主语所描述的事物比其他任何一个都 表示最高级含义。 li ming is much cleverer than any other student in their class. 李明是他们班中最聪明的学生。注意：若比较范围不同，than后应用“any + 可数名词的复数形式+其他”。china is larger that any countries in africa. 中国比非洲上的任何国家都大。【语法专项练习题】1. that boy looks as _ as a boxer.a. strong b. stronger c. strongest d. more strong2. how much _ she looked without her glasses!a. well b. good c. best d. better3. americans eat _ vegetables per person today as they did in 1910.a. more than twice b. as twice as many c. twice as much as d. more than twice as many4. oh, the food is bad. i think so .and the service(服务) is _. a. the worst b. worse c. badder d. the worse5. you have the same coat as i.yes, mine is_ , but not so_ as yours.a. better, expensive b. better, more expensive c. much better, more expensive d. good, more expensive6. the experts think that indias population may be_ than chinas_ 2020.a. much, by b. more, in c. larger, by d. larger, on7. this year our school is_ than it was last year.a. much beautiful b. the most beautiful c. beautifuler d. much more beautiful8. _ you work, _ knowledge you will get.a. the harder, more b. the harder, the more c. harder, the more d. harder, more9. he has _ friends than i.a. much more b. many more c. very more d. too more10. she draws better than _. a. us all b. we all c. all us d. all we11. shanghai is larger than _ city in china.a. any b. any other c. the others d. any else12. im not sure whether mary can sing _ ann.a. as well as b. as good as c. as better as d. so good as13. is your headache getting _?no, its worse.a. better b. bad c. less d. well 14. the population of china is larger than _ .a. america b. the one of americas c. that of america d. americans15. mr black is very happy because the clothes made in his factory has never been _.a. popular b. more popular c. most popular d. the most popular16. my sister is _person i know.a. the funniest b. the funnier c. the most fun d. funniest17. i like this jacket better than that one, but it costs almost three times_.a. as much b. as many c. so much d. so many18. in recent years travel companies have succeeded in selling us the idea that the further we go, _.a. our holiday will be better b. our holiday will be the betterc. the better our holiday will be d. the better will our holiday be19. greenland, _ island in the world, covers over two million square kilometers.a. it is the largest b. that is the largest c. is the largest d. the largest20. the book is the _ one in the bookshopa. the most cheap b. the expensive c. the most expensive d. the less expensiver21. (2011全国ii) mr. stevenson is great to work for - i really couldnt ask for a _boss. a. better b. good c. best d. still better22. you should study english hard, because its getting_ in our country .a. more and more important b. more important and more importantc. importanter and importanter d. important and important23. her brother is _ than she.a. 7 year older b. 7 years old c. 7 years old d. 7 years older24. the famous people talent show was one of _that i have ever seen.a. the most fantastic show b. most fantastic shows c. the more fantastic shows d. the most fa