Module 5 A Lesson in a Lab Grammar比较级课件（36张）

课件36张PPT。Module 5 A Lesson in a Lab1）原级比较：两者程度相同。用句型as+形容词/副词+as表示, 否定名式为: not as/so+形容词/副词as。 e.g. Dick is as tall as his brother. Tom speaks as quickly as his cousin. I have never seen a person as / so clever as he is.形容词和副词比较等级的用法2）比较级： A. 表示A超过B。此时用形容词和副词的比较级。e.g. Our classroom is brighter than yours. Dogs run faster than rabbits. I don’t think math is more important than physics.B. 表示A不如B。 句型：less+形容词 /副词原级。e.g. Rabbits ran less fast than dogs. Jenny is less clever than her sister. It rains less often here in autumn than in spring.3）形容词和副词比较级的特殊用法 越来越…… 比较级+ and+比较级e.g. You are growing taller and taller. 你越长越高了。 English is becoming more and more important. 英语越来越重要了。B. 越……， 越…… the +比较级+ the +比较级 e.g. The more careful you are, the better you will do in the exam. 你越小心，就会考得越好。 The more you practice, the more fluently you will speak. 你练得越多，讲得就越流利。C. 表示两者之中比较……的一个，用 of 引导，比较级前加上the。 e.g. Jack is the taller of the two brothers. 杰克是兄弟两中较高的一个。 This is the bigger of the two rooms. 这个房间是两个中较大的一个。D. no more than表示“只；不超过；不 多于”，相当于only。 e.g. His whole school added up to no more than one year. 他所接受的学校教育不过一年。 She has no more than one yuan in her pocket. 她兜里只有一块钱。E. no more…than 表示“……一样不……”；而not more…than则表示“不像……那样”，相当于“not so …as”。 e.g. Hs is feeling no better than yesterday. 他觉得不比昨天好多少。She is not more generous than her younger sister. 她不如她妹妹那样慷慨大方。 She is not so generous as her younger sister. 相当于：F. no less than表示“多达， ……那样多; 至少, 起码”, 相当于as much /many as, 蕴含这个数是大的；而not less than表示“不少于”, 不强调这个数的大小, 只说明数据本身。 e.g. I have no less than ten dictionaries. 我起码有10本字典。（至少）I have not less than ten dictionaries. 我有的词典不少于10本。（不含“我的词典多”的意思，只说明一个事实。）G. no less …than表示“不比……差；与……同样地”， 相当于“as …as”。 e.g. She is no less beautiful than her sister. 她和她的姐姐一样漂亮。H. 不用比较级的形容词如：senior, junior, superior, inferior等。 e.g. He is three years senior to me. 他比我大三岁。 Your knowledge of electronics is much superior to mine. 你对电子学的知识远远超过我。I. 比较级的修饰语。通常为副词或短语，置于比较级前面， 说明比较级的程度。a little, little, a bit, bit, a lot, a great deal, much, far, rather, slightly, by far, even, still, nearly, almost, any, just, (…) times等。e.g. The moon is much smaller than the earth. The result of the experiment turned out to be even better than expected. Speak a bit more slowly, please. The output of the paper mill is three times higher than it was last year. Make sentences about the comparative sizes of the pairs. Use the words in the brackets.Yangtze RiverSonghua River6,300 kilometers2,309 kilom ... ...