八年级英语上册 unit 3 a day out grammar课件 牛津版.ppt

文档介绍：12 Linda Nancy Linda is tall . Nancy is Linda. as tall as 3 ￥ ￥ The purple bag is _____________ the green bag. The green bag is expensive. as expensive as 4 as … as 的用法 as ... as 意为“和……一样”,表示同级的比较。其基本结构为: as + adj./adv. + as 1. She is as slim as I am. 2. Amy is as tall as Peter. 3. Ann runs as quickly as Peter . 5 Linda Nancy Kate Linda is tall . Nancy is as tall as Linda . Kate is not as tall as Linda . Kate is not so tall as Linda . 6 ￥ ￥ The green bag is expensive. The white bag is ________________ the green bag. not as expensive as The white bag is ________________ the green bag. not so expensive as cheaper than 7 A horse is not as/so heavy as an elephant . An elephant is heavier than a horse. 8 The train is not as/so fast as the plane. The plane is faster than the train. 91. not as + adj./adv. + as “不如……一样……” 2. not so + adj./adv. + as =比较级+ than 10