15比较级与最高级.ppt

Lecture 15: Comparison and Comparative Construction 8. as + 形容词或副词原级 + as 1）在否定句或疑问句中可用so… as。 He cannot run so/as fast as you. 2）当as… as 中间有名词时采用以下格式。 as +形容词+ a/an +单数名词+as as + many/much +名词+as This is as good an example as the other is. I can carry as much paper as you can. 3）用表示倍数的词或其他程度副词做修饰语时，放在as的前面。 This room is twice as big as that one. Your room is the same size as mine.　　 4) 倍数+ as + adj. + as　= 倍数+ the+n. + of This bridge is three times as long as that one. This bridge is three times the length of that one. Your room is twice as large as mine. Your room is twice the size of mine. 9 比较级形容词或副词 + than 注意： 1）要避免重复使用比较级。 (错) He is more cleverer than his brother. (对) He is more clever than his brother. (对) He is clever than his brother. 2）要避免将主语含在比较对象中。 (错) China is larger that any country in Asia. (对) China is larger than any other countries in Asia. 3）要注意对应句型，遵循前后一致的原则。 The population of Shanghai is larger than that of Beijing. It is easier to make a plan than to carry it out. 4）要注意冠词的使用，后有名词的时候，前面才有可能有名词。 比较： Which is large, Canada or Australia? Which is the larger country, Canada or Australia? She is taller than her two sisters. She is the taller of the two sisters. 10 可修饰比较级的词 1）a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等 2）还可以用表示倍数的词或度量名词作修饰语。 3）以上词(除by far)外，必须置于比较级形容词或副词的前面。 典型例题:　　　 1） Are you feeling ____?　 　 Yes，Im fine now. 　 A. any well　B. any better　C. quite good D. quite better 答案：B. any 可修饰比较级，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 time　 C. much happiest time　 D.　a much happier time 答案：D。 11 many, old 和 far 1) 如果后接名词时， much more +不可数名词 　　　　　　　　　 many more +可数名词复数　 　　? 2) old 有两种比较级和最高级形式: o