as 使用及總結(jié)高考英語(yǔ)知識(shí)素材積累

1、倍數(shù)詞與as1. 倍數(shù)詞+asas 是的幾倍他用功的程度是我的三倍He studies three times as hard as I.2. One and a half times asas 是的一倍半He is eight years old, and I am one and a half times old as he.他8歲，我12 歲。3. More than+倍數(shù)詞+asas是的幾倍還不止=倍數(shù)詞+more than He studies three times harder than I.一、asas 構(gòu)造的根本用法其根本意思為“與一樣，其中的第一個(gè)as副詞，其后通常接形容詞

2、或副詞用原級(jí)，第二個(gè)as可用作介詞后接名詞或代詞或連詞后接從句。使用時(shí)應(yīng)注意以下幾點(diǎn)：He runs as fast as John runs fast1. 在否認(rèn)句中，第一個(gè) as 也可換成 so：He doesnt study as so hard as his brother. 他學(xué)習(xí)不如他弟弟努力。2. 在該構(gòu)造的兩個(gè)as之間通常接形容詞或副詞的原級(jí)，但假設(shè)涉及數(shù)量或程度，可用“as much+不可數(shù)名詞+as和“as many+可數(shù)名詞復(fù)數(shù)+as：Youve made as many mistakes as I have. 你犯的錯(cuò)誤和我犯的一樣多。I havent got as m

3、uch money as I thought. 我不像原來(lái)想像的有那么多錢(qián)。其間接形容詞時(shí)，有時(shí)該形容詞還可修飾另一名詞，但這個(gè)名詞應(yīng)帶有不定冠詞注意詞序：She is as good a cook as her mother. 她和她媽媽一樣是位好廚師。也可說(shuō)：She is a cook as good as her mother.但不說(shuō)：She is as a good cook as her mother. 或They are as good cooks as us.二、關(guān)于第二個(gè)as的詞性第二個(gè)as后接從句時(shí)，該as通常為連詞，但有時(shí)這個(gè)as還充當(dāng)其后從句的主語(yǔ)或賓語(yǔ)，此時(shí)該as實(shí)為關(guān)

4、系代詞。如：I gave him as much as he could eat. 他能吃多少，我就給了他多少。Weve got food for as many people as want it. 我們的食物，無(wú)論多少人吃都?jí)蛄?。注：假設(shè)第二個(gè)as用作連詞引導(dǎo)一個(gè)表示將來(lái)意義的從句，那么該從句可用如今時(shí)表示將來(lái)，也可直接使用將來(lái)時(shí)態(tài)。如：Well get there as soon as you do will. 你一到，我們就到。三、asas構(gòu)造的修飾語(yǔ)該構(gòu)造根據(jù)情況可用使用以下修飾語(yǔ)：not nearly, almost, just, nothing like, exactly, no

5、t quite, half, one-ten, twice, three times, 30 per cent等，并且這些修飾語(yǔ)必須置于第一個(gè)as之前，而不能置于其后。如：He doesnt play half as well as his sister. 他演奏的程度不及他姐姐的一半。This dress is twice as expensive as that. 這件連衣裙比那件貴一倍。四、asas構(gòu)造的省略在非正式場(chǎng)合尤其是美國(guó)英語(yǔ)中，有時(shí)可以省略第一個(gè)as。如：When over forty, he married a woman poor as himself. 他在40多歲時(shí)娶了一個(gè)像他本人一樣窮的女人。另外，假設(shè)意思明確，有時(shí)可省略第二個(gè)as及其后的相關(guān)詞語(yǔ)。如：Th