人教版go for it 八年级下册英语比较句型(同级比较、比较级、最高级)ppt课件.pptx

1、英语比较句型英语比较句型 原级的句型 “as +原级原级形容词形容词/副词副词+as”的结构，表示 前后两者的情况一样 1）“A+系动词系动词+as+形容词原级形容词原级+as+ B eg. Bill is as funny as his father. My handwriting is as beautiful as yours. 我 的书法和你的一样好。 2）“A+谓语动词谓语动词+as+副词原级副词原级+as+ B” eg. Lucy speaks Chinese as well as Lily. 在否定句中，用“not as/ so +原级形容词原级形容词as” 结构，表示前者不如后

2、者。 “A+系动词系动词+not asso+形容词原级形容词原级+as + B” eg. These books arent as interesting as those. I am not as/ so busy as I used to be. 我没有过去那么忙了。 区别：区别：Tom is not as tall as Mike. Tom is not so tall as Mike. “A+助动词情态动词助动词情态动词+not+谓语动词谓语动词+as so+ 副词原级副词原级+as +B” eg. She didnt sing so well that night as she us

3、ually does. the same () as 与与相同相同/同样同样 Youve made the same mistake as Tom. 有时有时the same可以单独使用：可以单独使用： My mother is much younger than yours. She isnt! Theyre about the same age. Those two dress are the same. different from 与与不同不同（different前面可加 very，much，a little等修饰语） Is French food very different fro

4、m Italian food? Were planning something different this year from what we did last year. 常用词组 1. as good as几乎已经，实际上等于，和几乎已经，实际上等于，和几乎几乎一一 样样 He is as good as dead. 他跟死了一样。 The second hand geography book is as good as new. 这本二手地理书几乎还是新的。 2. as soon as一一就就 Please let us know as soon as you arrive in Be

5、ijing. 一到北京，请通知我们一声。 As soon as she got home, she began cooking. 她一到家就开始做饭。 3. as much / many as多达多达，达到，达到之多，实际上等于，之多，实际上等于， 差不多差不多 Some of the stones even weigh as much as fifteen tons. 有些石块甚至重达15吨。 The number of people who lost homes reaches as many as 250,000. 失去家园的人数多达25万。 Thats as much as to sa

6、y he was a thief. 那无异于说他曾是个小偷。 4. as far as就就而言，尽而言，尽 As far as I know, hell be away for three months. 就我所知，他将离开三个月。 We will help you as far as we can. 我们会尽力帮助你。 5. as long as只要只要 You can go where you like as long as you get back before dark. 你去哪儿都可以，只要你在天黑前返回。 You will be happy as long as I am livi

7、ng. 只要我活着，你就会幸福。 6. as often as每当，每当，每次每次 As often as he came, he would stay with us for a time. 每次他来，总要和我们呆上一阵子。 The boy always says hello to me as often as I meet him. 每次我遇见那个小男孩，他总是向我问好。 7. as well as和，同，既和，同，既又又，不仅，不仅而而 且且 My parents as well as my elder brother enjoy music. 我父母亲和我哥哥都喜欢音乐。 He is

8、clever as well as hard working. 他不仅努力工作而且聪明。 8. asas possible / one can尽可能，尽（某人）尽可能，尽（某人） 所所能能 Please sweep the floor as clean as possible. 请把地打扫得尽可能干净。 Ill get back as soon as I can. 比较级比较级 + than （比比更更） This bridge is longer than that one. Our school is larger than theirs. 比较级比较级 + + andand + + 比较

9、级比较级（越来越越来越） In spring, the days are getting longer and longer The flowers are more and more beautiful. The +比较级比较级，the+比较级比较级 （越（越就越就越） 1）The sooner，the better. 2）The more you eat，the fatter you will be. Which is + Which is + 比较级，比较级，A or B ?A or B ?（A A和和B B，哪一个比较，哪一个比较？）？） Which is longer, this o

10、ne or that? the + 最高级最高级 +（名词）（名词）+in/of/among 在（范围内）最 1）Tom is the tallest in his class. 2）This apple is the biggest of the five. one of theone of the + + 形容词最高级形容词最高级 + + 复数名词复数名词 表示“是中最之一”。 Beijing is one of the largest cities in China. Which is +Which is +thethe+ + 最高级最高级+?+?在在（范围内）哪一个最（范围内）哪一个最

11、？ Which is the biggest of the five balls 运用比较级表达最高级的概念运用比较级表达最高级的概念 “比较级比较级+than any other+名词单数名词单数”，“比较级比较级 +than the other+名词复数名词复数”或“比较级比较级 +than the rest of +the+名词复数名词复数”都可表示最高 级意义。 Julia is taller than any other girl in her class. Julia is taller than the other girls in her class. Julia is tal

12、ler than the rest of the girls in her class. 以上三句表达的意思等同于最高级的含义： Julia is the tallest of the girls in her class. 朱丽叶是她们班上最高的女生。 比较级和最高级的修饰语比较级和最高级的修饰语 比较级比较级的修饰语的修饰语 Much（得多），far（得多），even（甚至， 更），still(更)，a bit（有点），a little（有点）， a lot（很）， a great deal(大大地), twice(两倍 ), five times(五倍), two-fifths(五分之二

13、), a half(一 半)等修饰比较级表示程度，但决不可用very修 饰。 eg. Tom is a little taller than Mike. Tom 比Mike稍高一点； It is even colder today than yesterday. 今天甚至比昨天更冷 比较结构的同义转换比较结构的同义转换 有时，不同的比较结构可以表示相同的意思，因此，它们可以相互转 换。 1. not as/ soas与与lessthan的转换的转换 The place was not as/ so crowded as it usually is yesterday. The place wa

14、s less crowded than it usually is yesterday. 昨天，这个地方不像平常那样挤满了人。 2. morethan与与lessthan, not as/ soas的转换的转换 Your picture is more beautiful than his. His picture is less beautiful than yours. His picture isnt as/ so beautiful as yours. 你的画比他的好看。 3.最高级与最高级与morethan, nomore than的转换的转换 Math is the most di

15、fficult subject of all. Math is more difficult than any other subject. No subject is more difficult than math. 数学是所有学科中最难的。 Exercises 用括号中形容词或副词的适当形式用括号中形容词或副词的适当形式填空填空 1）This park is muchthan that one. (beautiful) 2）Im a boy in the sun. (happy) 3）Which book is , yours or mine? (thick) 4）My mother d

16、rives as as my father. (good) 5）Who is than I, he or she? (old) 6) He becomesand (越来越胖) 7) Thehe is, the he feels他越忙就越高兴。 8) This garden isas as that one(三倍大) more beautiful happy thicker well oldest fatter fatter busier happier three times big 用所给的词组翻译句子 1.一旦关系有所改善，他们就可以获准离开。(as soon as) As soon as

17、 relations improve they will be allowed to go. 2.据我所知，它仅仅维持了两三年。(as far as) It only lasted a couple of years, as far as I know. 3.只要你离他们远一点, 你就会安全. (as long as) As long as you can keep away from them, youre safe. 4.选花不仅要观其形还要闻其香。(as well as) Flowers are chosen for their scent as well as their look.

18、不改变意思，改写下列不改变意思，改写下列句型句型 1) Lin Tao is the tallest boy in his class. Lin Tao is any otherin his class. 2）Science is not so interesting as music. Science isthan music. Music is than science. 3) This box is 12 kg. That box is 14 kg. The two boxes are _ weight. 4）Mary is 6 years old. Lily is 12 years o

19、ld. Lilys age is _ Marys. (asas) Mary is _ than Lily. taller than boy less interesting more interesting the same the same twice as old as younger 选择选择填空填空 （ ）1. This book isthat one. A. not so interesting B. more interesting than C. as more interesting as D. interesting than （ ）2. I think maths is n

20、otEnglish. A. easier B. less easy C. easy D. so easy as （ ）3. He is one of in our country. A. the most popular singer B. the most popular singers C. the more popular singers D. most popular singers （ ）4. Which do you prefer, vegetables or fruit? I prefer fruit vegetables. A. to B. than C. of D. and

21、（ ）5. The weather in Beijing is asin Shanghai today. A. wetter than the weather B. wet as the weather C. wet than that D. wet as that B D B A D 6. No one runs as fast as John in his class. The sentence means _. A. John runs fastest in his class. B. John runs faster than any other boy in his class. C

22、. John runs more slowly than any other student in his class. D. John runs as fast as others in his class. 7. 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 cities 8. Of the two pencil-boxes, the boy chose _ ex

23、pensive one. A. less B. the least C. the less D. the most 9. How was the weather yesterday? -It was terrible. It rained _. People could _ go out. A. hardly; hardly B. hardly; hard C. hard; hard D. hard; hardly 10. This chair is not _ for him to _. A. strong enough; sit B. enough strong; sit C. enoug

24、h strong; sit in D. strong enough; sit on A B C D D Translate the following sentencesTranslate the following sentences. 你工作越努力你工作越努力, , 你就会得到越好结果。你就会得到越好结果。 你英语听得越多你英语听得越多, , 英语就会越容易。英语就会越容易。 你越爬得高你越爬得高, , 就看得越远。就看得越远。 你越吃得多你越吃得多, ,就会越胖。就会越胖。 The harder you work, the better result you will get. The more you listen to English, the easier it becomes. The higher you climb, the farther you will see. The more you eat, the fatter you will be.