急as，than的用法

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   as 的用法：

   than比较中省略助动词和主语的用法：

   

consonant

副词 adv. 象…一样；如同；一样；同样
	like;in the same way
	· His face is as black as coal. 他面黑如煤炭。 · I am not as tall as he is. 我和他不一样高。 · It seemed to be as big as a house. 它看上去和一幢房子一样大。 · He thought he could walk as quickly as his friend, but couldn't. 他认为他能和他朋友走得一样快，但他不行。 · I get up just as early as he does. 我和他起得一样早。 · as cold as ice 象冰一样冷 · as cool as a cucumber 泰然自若 · as good as gold 象金子那么纯正 · as happy as a lark 象百灵鸟一样快乐
	连词 conj. 当…的时候
	when;while
	· He waved as the train left the station. 火车离站时，他挥着手。 · As I was coming here, I met your brother. 我到这儿来的路上，遇见了你弟弟。 · As a child he lived on a farm. 他小时候住在一个农场里。 · We get wiser as we grow old. 随着我们年纪越来越大，我们变得聪明了。
	连词 conj. 和…一样；象；如
	in the same way as
	· Do as I do. 象我这样做。 · It is just as you like. 正是象你喜欢的那样。 · We discussed our profession as all medical men do. 我们象所有的医生那样讨论我们的业务。 · It isn't so (as) easy as you think. 这不象你想的那么容易。 · This line is as long as that one. 这条线同那条线一样长。 · He doesn't speak as other people. 他说的话和别人不一样。
	连词 conj. 按照
	according to
	· He told his men to do as the boy asked. 他叫他的佣人按照孩子要求的办。 · Do as you are told. 依照吩咐去做。 · It is as you told me. 事情正如你告诉我的那样。
	连词 conj. 表示比例、比较等
	· Two is to four as(what)eight is to sixteen. 二比四等于八比十六。 · One is as light as the other is heavy. 一个很轻，另一个则很重。
	连词 conj. 因为；由于；鉴于
	because
	· As I was late, I hurried along. 因为迟了，所以我赶紧走。 · As it was raining. I stayed at home. 由于下雨我便呆在家里。 · As Li Pin was not well, I went there myself. 因为李频身体不舒服，我就自己去那里了。 · As he wasn't ready, we left without him. 由于他没有准备好，我们就自己走了。 · Everybody likes him as he is kind and honest. 他和气诚实，所以人人都喜欢他。
	连词 conj. 虽然；尽管；然而
	though;however
	· Young as he is, he knows a lot of things. 他虽年轻，却知道很多东西。 · Pretty as she is, she is not clever. 虽然她很美，但不聪明。 · Late as it was, they continued the work. 天色虽然很晚了，他们仍然在工作。 · Rich as he is, he is not happy. 尽管他很富有，他并不幸福。 · Cold as it was, they went on working. 尽管天气很冷，他们仍不停地工作。
	连词 conj. 被认为；作为
	considered as
	· He was famous as a soldier. 他作为一个军人很有名气。 · He was hanged as a murderer. 他作为一个杀人犯而被绞死了。
	介词 prep. 以…为职业
	in the job of
	· Marion works as a journalist. 马里恩的职业是新闻工作者。
	介词 prep. 以…的资格；作为
	in the capacity of; considered as
	· He is famous as a physicist. 他以物理学家而闻名。 · I regard him as a guest. 我把他当作客人。 · I've come here as a journalist. 我是以记者身份来这儿的。
	代词 pron. 象…那样的人（或事物）
	the same as;as... as; such... as
	· He is not such a fool as he looks. 他不象外表那样愚蠢。 · Is it the same lecture as tomorrow's? 今天的演讲和明天的一样吗？ · He is not the same man as he was. 他已不是从前那个人了。
	代词 pron. 由…知道
	(preceded by, or preceding a sentence) which fact
	· He was a foreigner, as I knew from his accent. 从他的口音，我知道他是一个外国人。 · This elephant is like a snake, as anybody can see. 这头大象象条蛇，这是任何人都看得出来的。

consonant

考点16：比较结构

要点：比较结构中要注意两点1、倒装性；2、对称性

比较结构常考内容为：比较级的表达，比较的对等成份，最高级冠词的应用。比较级后半部分可倒装也可

不倒装。

例1：Western Nebraska generally receives less snow than ______ eastern Nebraska.

(A) does

(B) in

(C) it does in

(D) in it does

答案：A

分析：than引导比较状语从句，空格后面是个专有名词，肯定是比较从句的主语，空格处明显缺从句的谓

语动词，只有（A）符合条件，故选（A）。注意than eastern Nebraska does 是正确的语序，但是原文中

使用了倒装；在比较结构的后面部分中，如果比较从句的主语长，谓语动词短，动词可放到主语前面进行

到装。

例2： Hot objects emit ______ do cold objects.

(A) rays more than infrared

(B) rays are more infrared than

(C) more than infrared rays

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(D) more infrared rays than

答案：D

分析：emit为及物动词，空格处缺宾语和引导比较从句的than， 只有（D）符合条件。注意空格后为倒装

形式，do代替emit以避免重复。此题为常考的句子结构。

比较结构中还需要注意相互比较的必须属于同一种事物

例3：The activities of the international marketing researcher are frequently much broader than _____.

(A) the domestic marketer has

(B) the domestic marketer does

(C) those of the domestic marketer

(D) that which has the domestic marketer

答案：C

分析：本题还是考查比较句，由于谓语动词是系动词are, 故先排除与其不对应的以has和does结尾的

（A）和（B）。选项D则语义不清，也可排除。C中those代替前面提到的activities以避免重复，those一

定要具备，因为只有这样才能满足比较的都是activities，谓语动词are因与主句谓语动词相同而被省略，因

此C为正确答案。