as是中学英语中意义广泛

as是中学英语中意义广泛 as是中学英语中意义广泛、用法灵活且复现率极高的词，而且几乎每年高考命题都会从 不同角度对其进行考查,笔者认为很有必要对as的高频考点及用法予以归纳与讲解，以帮 助同学们学习参考之用,现分述如下 一、考查as原级比较结构及插入名词的位置问题 典型命题 1. Our neighbour has ours. A. as a big house as B. as big a house as C. the same big house as D. a house the same big as 2. John plays football, if not better than, David. A. as well B. as well as C. so well D. so well as 解析一般来讲，形容词、副词原级比较的结构为〃...not as soadj./adv.as...” 表示前者与后者一样/不一样。如果中间有名词，其常用结构为〃... asadj.an 名词 as... 真题直练 1. It is generally believed that teaching is it is a science. A. an art much as B. much an art as C. as an art much as D. as much an art as 2. She doesn，t speak her friend, but her written work is excellent. A. as well as B. so often asC. so much as D. as good as 3. The piano in the other shop will be , but . A. cheaper; not as better B. more cheap; not as better C. cheaper; not as good D. more cheap; not as good 4. After supper she would sit down by the fire, sometimes for an hour, thinking of her young and happy days. A. as long as B. as soon as C. as much as D. as many as Key1-4 DACA 二、考查as构成的倍数表达法 典型命题 The house rent is expensive. Ive got about half the space I had at home and I am paying here. A. as three times much B. as much three times C. much as three times D. three times as much 解析如果表示一方是另一方的若干倍时,”倍数as原级形容词/副词as”为 一常用结构。真题直练 1. With the help of the German experts, the factory- produced cars in 1993 as the year before. A. as twice many B. as many as twice C. as twice as many D. twice as many 2. After the new technique was introduced, the factory produced tractors in 1988 as the year before. A. as twice many B. as many twice C. twice as many D. twice many as Key1-2 DC 三、考查充当连词的as 典型命题 1. , I have never seen anyone who, s as capable as John. A. As long as I have travelled B. Now that I have travelled so much C. Much as I have travelled D. As I have travelled so much 解析此题中as引导倒装结构，表示让步关系，其结构为〃as主语谓语〃。 特别提示使用此结构时应注意以下几点1倒装的部分一般为表语、状语和动词原形。 2表语是不带定语的单数可数名词，其前面的a an要省去;3倒装的动词原形常与 may, might, will, would等词连用,但这些词都要保留在原来位置上。如 Child as he is, he speaks English well.他虽是个孩子，但英语说得很好。 Much as I like the book, but I have no money to buy it.虽然我非常喜欢这本书， 但我却没钱买。 Try as he might, Tom could not find a job.不管怎样努力，汤姆还是找不到一份工 作。 2. Mother was worried because little Alice was ill, especially Father was away in France. A. as B. that C. during D. if 解析此题中as充当从属连词，作〃当的时候〃解，引导时间状语从句，表示主句动作 与从句动作同时发生。在使用as时应注意其与while和when的区别Dwhile常表示一段 较长的时间或一个过程，强调主句谓语动词与从句谓语动词所表示的动作同时发生,为〃 在期间〃之意。如While I was reading letters last night, he was watching TV. 昨晚我看信时，他在看电视。2 when可用来表示一段时间，意为〃在期间〃，与延续性动 词连用；也可用来表示时间点，意为〃当时候〃，与非延续性动词连用。如I fell asleep when he was doing his rcises.他做练习时我睡着了。When he came into the classroom, I was reading.他走进教室时我正在看书。 真题直练 1. , he doesn，t study well. A. As he is clever B. He is as clever C. Clever as he is D. As clever he is 2. , he was unable to make much progress. A. Hard