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(not)as...as的用法.ppt

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(not)as..as的用法.ppt
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Module 2 Unit 4 Inventions ( not) as…as 的用法 (1).表示两者在某方面程度相同时,用 as+adj/adv原级 +as +比较对象 和 …一样 • This book is as interesting as that one. • 这本书和那本书一样有趣。 • She sings as well as Han Meimei. • 她唱得和韩梅梅一样好。 (2)表示某人或者某物在某方面不如另一个人或者另一物时,用 not so/as+adj/adv原级 +as +比较对象, ‘和 …不一样,不如 …。可以和“ 比较级+than”进行转换 • The classroom is not so( as) clean as usual. • 教室不像平常一样干净。 • The classroom is dirtier than usual. • He doesn't get up so/as early as his father. • 他起床不如他的父亲早。 • He gets up later than his father. Analysis of sentence structure • This book is as interesting as that one. • 主语 +be动词 +as+adj+as+比较对象 • She sings as well as Han Meimei. • 主语 +行为动词 +as+adv+as+比较对象 Exercises • 他和他的朋友一样勇敢。( as brave as) • He is as brave as his friends. • 他不如他的朋友勇敢 • He isn’t as brave as his friends. • His friends are braver than he. • 他数学学得和 Lucy一样差。( as badly as) • He learns math as badly as Lucy. • 他数学学得不和 Lucy一样差。 • He doesn’t learns math as badly as Lucy. • He learns math worse than Lucy. 重庆和日本一样大。( large) Chongqing is as large as Japan. 重庆不如日本大。( large) Chongqing isn’t as large as Japan. Chongqing is smaller than japan. (3)as . as”结构中还可以用倍数、分数、百分数和 half, a quarter等来表示等同的程度。 • 你只有你弟弟一半聪明。 • You are half as clever as your brother. • 北京有我的家乡 10个大。 • Beijing is ten times as big as my hometown. • Lucy 的年龄是 Helen的三分之一。 • Lucy is one third as old as Helen. 在‘ 'as . as”结构中, 第二个 as后接人称代词时,可用主格,也可用宾格。 一般来说,正式文体用主格,非正式文体用宾格,意思完全一样。 • I think I am as clever as they / them, • 我认为我和他们一样聪明。 • I myself felt as well as him (he did). • 我本人的感觉和他的 (感觉 )一样好。 • She works as hard as me (= as hard as I do). • 她像我一样干活卖力。 • The computers made in China are as good as____(that /those) made in the U.S.A. • The food in Chongqing is hotter than ___ ( that /those) in Beijing. • The weather in japan isn’t as good as ___ ( that /those) in England. 注: those用于代替前面提到的可数名词复数,以避免重复, that则代替单数可数名词和不可数名词。 those that that (4)当 as.as与表示 重量、数量、时间、距离、价格 等的计量名词连用时 .往往并不表示比较。而是构成一个形容词组 .意为“ 重达 ·……多达 ·……高达 ··…等 • The river is as dee
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