专题09 形容词和副词比较等级易错点解题方法
英语中的形容词和副词有三个等级，即原级、比较级和高最级。比较级主要用于两者比较，最高级主要用于多者比较。注意：不能使用双重比较等级。即构成比较级时不能既加词尾-er，又在其前加more；构成最高级时不能既在词尾加-est，又在其前加most，如不能说more better, most earliest 等。不过“比较级+and+比较级”这样的形式却完全可用。如：I am getting fatter and fatter. 我越来越胖了。
 使用比较等级要注意合乎逻辑，高考常见考点及解题方法：
考点1：原级比较一般结构  as … as ; not as … as ; the same … as ;
There are as good fish in the sea ___ ever came out of it.
  A. than      B. like      C. as    D. so
【答案】: C.
【解析】：最佳答案C. as.  结构  as … as  ; 意思是：.海里的好鱼是取之不尽的。
考点2：A is to B what / as X is Y ;
1. Nine is to three____ three is to one.
A. when    B. that    C. which    D. what
【答案】D 
【解析】：最佳答案D. what。固定句型。意思是：九比三就像三比一。
2. Intellect is to the mind ___ sight is to the body.
  A. what    B. as      C. that    D. Like
【答案】A 
【解析】：最佳答案A. what 。意思是：知识之于心灵，犹如视力之于身体。
考点3：倍数或几分之几。
1. A new laptop costs about ____ of a second-hand one.
A. the price of three times              B. three times the price
C. as much as the three times price      D. three times more than the price
【答案】B 
【解析】：最佳答案 B. three times the price。意思是：一台新笔记本电脑的价格大约是二手笔记本电脑的两倍。
2. The square itself is five hundred yards wide, five times ___ the size of St. Peter's in Rome.
  A. / .      B. that of  .      C. which is.        D. of
【答案】A 
【解析】：最佳答案A. /。意思是：广场本身有五百码宽，是罗马圣彼得大教堂的五倍大。
3. Some dieters find that after their dieting is over, they eat twice _____ they did before their diet.
  A.more than    B.as many as      C.much than     D.as much as
【答案】D. 
【解析】：最佳答案D. as much as。意思是：一些节食者发现，节食结束后，他们的食量是节食前的两倍。
4. A person's blood flows through a pipeline of vessels that, end to end, would stretch more than____ half times around the Earth at the equator.1991
  A. twice      B. two and a   C. two and  D. twice and
【答案】B. 
【解析】：最佳答案 B.  two and a 。意思是：一个人的血液通过一条血管管道流动，这条管道的一端到另一端的长度是地球赤道的2.5倍以上.
考点4：more than 有很多种用法：
(1) more than “不仅是，非常，十分”等，用法和意义较多。
It was ___ success ___ we had hoped.
A. than    B. a ... more than    C. as much of a .... as  D. a ... as much as
【答案】B. 
【解析】：最佳答案 B. a success more than。意思是： 这比我们所希望的要成功得多.
(2) more …than “与其说……不如说，不是……而是”
Do you know Tim’s brother? He is ___  of a sportsman___ Tim.
A. much more ... than      B. more ...  than    C. more  than    D. more a ...than
【答案】B. 
【解析】：最佳答案 B。你认识蒂姆的哥哥吗?他比蒂姆更像一个运动员。
(3) no more than 仅仅；两者都不
Many play for fun, or for_____ their peers’ praise. 
  A. no more than    B. any more than    C. no less than    D. much more than 
【答案】:A.
【解析】：最佳答案A.no more than。许多人仅仅是为了好玩，或者最多是被同侪夸奖。
(4) not more than 不超过；前者不如后者
Overpopulation poses a terrible threat to the human race. Yet it is probably _____a threat to the human race than environmental destruction.
  A. no more      B. not more     C. even more      D. much more
【答案】:B.
【解析】：最佳答案 B. not more。人口过剩对人类构成了严重的威胁。然而，它对人类的
威胁可能并不比环境破坏更严重。 
(5) no less than = as much as 意为：“竟有…之多，多达”强调多
(6) not less than 意为“不少于，至少”，客观地描述
. John is____ hardworking than his sister, but he failed in the exam.
  A. no less    B. no more    C. not less    D. no so
【答案】A.
【解析】：最佳答案 A。 约翰和他妹妹一样用功，但他考试不及格。 
考点5：在more … than 结构中，than 有时可看作关系代词，相当于than what…
1. The research requires more money than ______.
  A. have been put in   B. has been put in  C. being put in  D. to be put in
【答案】:B.
【解析】：最佳答案 B. has been put in  。这项研究需要的钱比投入的还要多。
2. There ought to be less anxiety over the perceived risk of mountain climbing than _______ in the public mind today.
  A. Exists  B. Exist  C. Existing  D. to exist
【答案】A.
【解析】：最佳答案 A. Exists 。人们不应该像现在公众认为的那样对登山的潜在风险感到焦虑。
考点6：so much as用在否定句中：与其说，不如说
1. It is not___ much the language as the background that makes the book difficult to understand.
  A. that      B. as        C. so       D. very
【答案】C.
【解析】：最佳答案  C。使这本书难以理解的与其说是语言不如说是背景。
2. That trumpet player was certainly loud. But I wasn’t bothered by his loudness ___ by his lack of talent.
  A. so much as      B. rather than    C. as  D. than
【答案】A.
【解析】：最佳答案 A. so much as。那个吹小号的人确实很大声。但我并不为他的吵闹而烦恼，而是为他缺乏才能而烦恼。
◆典型陷阱题分析◆
1. How beautifully she sings! I have never heard _____ voice.
A. a better        B. a best          C. the better      D. the best
【答案】A.
【解析】容易误选D，认为最高级前要用定冠词。其实此题最佳答案为A，该句可视为…I have never heard a better voice than her voice 之省略，全句句意为“她唱得多好啊！我从未听过她这么好的声音”。请再看以下类似的实例：
He is fine, never better. 他很好，比以往任何时候都好。
This bird is really lovely. I’ve never seen a finer one. 这只鸟真可爱，我从未见过这样好看的鸟。
less is more英文理解

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