形容词/副词原级比较
原级比较的基本用法
 原级比较由“as＋形容词或副词(或再加名词或短语)＋as ”构成“原级相同”比较句，表示两者比较；其否定式，即“程度不及”比较句型为“not so(as) ＋形容词或副词＋as”，而且as…as结构前可用just, almost, nearly, quite等表示程度的词修饰
一．形容词或副词的原级、比较级和最高级的测试
1．用括号中形容词或副词的适当形式填空
　　1）This park is much               than that one. (beautiful)
　　2）I’m a         boy in the sun. (happy)
　　3）Which book is          , yours or mine? (thick)
　　4）My mother drives as         as my father. (good)
　　5）Who is          than I, he or she? (old)
　　2．不改变意思，改写下列句型
　　1）I like chicken better than fish.
　　　　I        chicken        fish.
　　2）Lin Tao is the tallest boy in his class.
　　　　Lin Tao is               any other         in his class.
　　3）Science is not so interesting as music.
　　　　Science is                  than music.
　　　　Music is                   than science.
　　4）This box is 12 kg. That box is 14 kg.
　　　　This box is                  that one.
　　　　That box is                  this one.
　　5）Mary is 10 years old. Lily is 12 years old.
　　　　Mary is                 Lily.
　　　　Lily is          than Mary.
　　3．选择填空
　　（ ）1. This book is           that one.
　　　　A. not so interesting 　　　　B. more interesting than
　　　　C. as more interesting as 　　D. interesting than
　　（ ）2. I think maths is not         English.
　　　　A. easier 　　B. less easy 　　C. easy 　　D. so easy as
　　（ ）3. He is one of          in our country.
　　　　A. the most popular singer 　　 B. the most popular singers
　　　　C. the more popular singers 　　D. most popular singers
　　（ ）4. －Which do you prefer, vegetables or fruit?
　　　　　　－I prefer fruit     vegetables.
　　　　A. to 　　B. than 　　C. of 　　D. and
　　（ ）5. The weather in Beijing is as         in Shanghai today.
　　　　A. wetter than the weather 　　B. wet as the weather
　　　　C. wet than that 　　　　　　　D. wet as that
二.注意几个词组
1. as good as几乎已经，实际上等于，和……几乎一样
He is as good as dead.他跟死了一样。
The second hand geography book is as good as new.
这本二手地理书几乎还是新的。
2. as soon as一……就……
Please let us know as soon as you arrive in Beijing.
一到北京，请通知我们一声。
As soon as she got home, she began cooking.
她一到家就开始做饭。
3. as much / many as多达……，达到……之多，实际上等于，差不多
Some of the stones even weigh as much as fifteen tons.
有些石块甚至重达15吨。
The number of people who lost homes reaches as many as 250,000.
失去家园的人数多达25万。
That”s as much as to say he was a thief.
那无异于说他曾是个小偷。
4. as far as就……而言，尽……
As far as I know, he”ll be away for three months.
就我所知，他将离开三个月。
We will help you as far as we can.
我们会尽力帮助你。
5. as long as只要
You can go where you like as long as you get back before dark.
你去哪儿都可以，只要你在天黑前返回。
You will be happy as long as I am living.
只要我活着，你就会幸福。
6. as often as每当，每次
As often as he came, he would stay with us for a time.
每次他来，总要和我们呆上一阵子。
The boy always says hello to me as often as I meet him.
每次我遇见那个小男孩，他总是向我问好。
7. as well as和，同，既……又……，不仅……而且……
My parents as well as my elder brother enjoy music.
我父母亲和我哥哥都喜欢音乐。
He is clever as well as hard working.
他不仅努力工作而且聪明。
8. as…as possible / one can尽可能，尽（某人）所能
Please sweep the floor as clean as possible.
请把地打扫得尽可能干净。
I”ll get back as soon as I can.
9.“比较级+and+比较级”表示“越来越……”。
如: He becomes        and          ．(越来越胖)
10."The+比较级…，the+比较级”表示“越……，越……”。
如：The          he is，the          he feels．他越忙就越高兴。
三. (1)表示倍数有．．．times as+形容词原级+as的句型。如：
This garden is                as         as that one．(三倍大)
This room is          as         as that one．（两倍大）
(2)half as+形容词原级+as表示“……的一半”。
如：This book is half as thick as that one．