2. 比较级形容词或副词 + than You are taller than I. They lights in your room are as bright as those in mine. [点拨]1)要避免重复使用比较级 　(错) He is more cleverer than his brother.　 (对) He is more clever than his brother. 2)要避免将主语含在比较对象中 (错) China is larger that any country in Asia. (对) China is larger than any other countries in Asia. 3)要注意对应句型，遵循前后一致的原则。 The population of Shanghai is larger than that of Beijing. It is easier to make a plan than to carry it out. 4)要注意冠词的使用，后有名词的时候，前面才有可能有名词 比较：Which is large, Canada or Australia? Which is the larger country, Canada or Australia? She is taller than her two sisters. She is the taller of the two sisters.

(三)可修饰比较级的词 1)a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等 2)还可以用表示倍数的词或度量名词作修饰语。 3)以上词(除by far)外，必须置于比较级形容词或副词的前面 [典型例题]:　　 ---- Are you feeling ____?　 ---- Yes，I'm fine now. A. any well　　 B. any better　　 C. quite good 　　D. quite better　 [答案]B. any 可修饰比较级，quite修饰原级，well的比较级为better. (四)几种比较等级的特殊用法

(三)兼有两种形式的副词 1 close与closely close意思是"近"； closely 意思是"仔细地"

He is sitting close to me.

Watch him closely. 2. late 与lately late意思是"晚"； lately 意思是"最近" You have come too late. What have you been doing lately? 3.deep与deeply deep意思是"深"，表示空间深度；deeply时常表示感情上的深度，"深深地" He pushed the stick deep into the mud. Even father was deeply moved by the film. 4.high与 highly high表示空间高度；highly表示程度，相当于much The plane was flying high. I think highly of your opinion. 5.wide与widely

wide表示空间宽度；widely意思是"广泛地"，"在许多地方"

He opened the door wide.

English is widely used in the world. 6.free与freely

free的意思是"免费"；freely 的意思是"无限制地"

You can eat free in my restaurant whenever you like. You may speak freely; say what you like.

三 形容词与副词的比较级 (一) 基本构成　

大多数形容词(性质形容词)和副词有比较级和最高级的变化，即原级、比较级和最高级，用来表示事物的等级差别。原级即形容词的原形，比较级和最高级有规则变化和不规则变化两种。 1.规则变化 单音节词和少数双音节词，加词尾-er，-est来构成比较级和最高级 　构成法　　原级　　比较级　最高级　 一般单音节词　tall(高的)　 taller　 allest 未尾加-er,-est　 great(巨大的)　 greater　 greatest　 以不发音的e结尾　nice(好的)　nicer　　 nicest 的单音词和少数　 large(大的)　 larger　 largest 以- le结尾的双　 able(有能力的) abler　ablest 音节词只加-r,-st　　　　　　　　　 以一个辅音字母　big(大的)　　bigger　 biggest 结尾的闭音节单　hot热的)　　hotter　 hottest 音节词，双写结尾的辅音字母， 再加-er，-est　　　　　　　　　 "以辅音字母+y"　easy(容易的)　 easier　 easiest 结尾的双音节词，busy(忙的)　 busier　 busiest 改y为i，再加 -er，-est　　　　　　　 少数以-er，-ow　clever(聪明的)　cleverer　 cleverest 结尾的双音节词　narrow(窄的)　narrower　 narrowest 未尾加-er，-est　　　　　　　　　 其他双音节词和　important(重要的)　 多音节词，在前面加more，most more important

　　　　　　　　　 most important 来构成比较级和最高级　easily(容易地)　

　　　　　　　　　　　 more easily　 most easily 　 2.不规则变化 　 原级　　　 比较级　　最高级　　　 good(好的)/　　　 better　　best well(健康的)　　　　　　　　　　 bad (坏的)/　　 worse　　 worst ill(有病的)　　　　　　　　　　 old (老的)　　　older/elder　oldest/eldest　　 　 much/many(多的)　 more　　　most　　　 little(少的)　　　 less　　　 least　　　 far (远的)　 farther/further　 farthest/furthest　 　　

(二)几组常用比较等级句型

1. as + 形容词或副词原级 + as 1)在否定句或疑问句中可用so… as。 He cannot run so/as fast as you. 2)当as… as 中间有名词时采用以下格式。 as +形容词+ a +单数名词 as + many/much +名词 This is as good an example as the other is. I can carry as much paper as you can.. 3)用表示倍数的词或其他程度副词做修饰语时，放在as的前面 This room is twice as big as that one. Your room is the same size as mine.　 4) 倍数+ as + adj. + as　<=> 倍数+ then + of This bridge is three times as long as that one. This bridge is three times the length of that one. Your room is twice as large as mine. Your room is twice the size of mine.

10. Wouldn’t it be ____for you to pick me up at four o’clock and take me to the airport.

A．free　 　　　　　　 B．vacant　　 　　　　　 C．handy　　　　 　 　D．convenient

9. 10,000 dollars is a large sum of money，but it is still ______than we need for a new house

A．very few　　 　 　　　B．very little　　　 C．far fewer　 　　　 　D．far less

8. Food safety is ________ important, so the government spares no efforts to prevent food pollution.

A.strongly　　　 　　　　 B. reasonably　　　　 　 C.highly　 　　　　　D. naturally

7. The increase of the number of the students makes the limited computers not ______ to each student．

A．available　　　　 B．affordable　　　　 C．helpful　　　　 D．acceptable

6. It is ______ to spend money in preventing illnesses by promoting healthy living rather than spending it trying to make people ______ after they are ill.

A. good; good 　　 B. well; better　　　 C. better; better D. better; good

5. Attention, coffee lovers! We have for you, the best coffee machine _____ invented.

　A. ever　　　　　　 B. already　　　　　 C. even　　　　　 D. nowadays　

4. Much to my surprise, the eight-year-old boy _____fixed my computer within ten minutes．

A．skillfully　　　 B．immediately　　　 C．normally　　　 D．nervously

3. Well, that’s just the deal. ______ price will be out of my reach.

　A. The higher　　　 B. A higher　　　　 C. The highest　　 D. A highest