第1个回答 2007-10-28
形容词与副词的比较级
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,在词尾加-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 tallest
末尾加-er,-est great(巨大的) greater greatest
以不发音的e结尾 nice(好的) nicer nicest
的单音节 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
末尾加-er,-est
其他双音节词和 important(重要的) more important
多音节词,在前 most important
面加more,most
来构成比较级和 easily(容易地)
最高级 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
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/an +单数名词+as
as + many/much +名词+as
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+ the + 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.
比较级形容词或副词 + than
You are taller than I.
The lights in your room are as bright as those in mine.
注意:
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.
(对) He is cleverer 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,前面才有可能有冠词。
比较:Which is larger, 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.
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。
例题:
1) ---- 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。
2)The experiment was____ easier than we had expected.
A. more B. much more C. much D. more much
答案:C much可修饰比较级,因此B,C都说得通,但easier本身已是比较级,不需more,因此C为正确答案。
3)If there were no examinations, we should have ___ at school.
A. the happiest time B. a more happier time
C. much happiest time D. a much happier time
答案:D
物主代词:
物主代词可分为形容词性物主代词和名词性物主代词。
1. 形容词性物主代词起形容词的作用,用在名词前。
例:①This is my book.这是我的书。
②We love our motherland.我们热爱我们的祖国。
2. 名词性物主代词起名词的作用。
名词性物主代词=形容词性物主代词+名词
为避免重复使用名词,有时可用“名词性物主代词”来代替“形容词性物主代词+名词”的形式
例:My bag is yellow, her bag is red, his bag is blue and your bag is pink.
可写成My bag is yellow, hers is red, his is blue and yours is pink.
Look at the two pencils. The red one is yours and the blue one is mine.
看那两支铅笔,红的是你的,蓝的是我的。
一览表
however可为复合关系副词。
(1)(引领让步从句)无论如何
However hard he may try, he cannot do it in a week.
(= No matter how hard he may try, …)
无论他怎样努力工作,也不能在一星期内做好。
however有时可表达“然而”、“可是”之意,出现于句中或句尾。
They said that it was so;they were mistaken,however.
他们说事情就是如此,可是他们错了。
系动词:
系动词亦称连系动词,作为系动词,它本身有词义,但不能单独用作谓语,后边必须跟表语(亦称补语),构成系表结构说明主语的状况、性质、特征等情况。
说明:有些系动词又是实义动词,该动词表达实义时,有词义,可单独作谓语,例如:
He fell ill yesterday.
他昨天病了。(fell是系动词,后跟补足语,说明主语情况。)
He fell off the ladder.
他从梯子上摔下来。fell是实义动词,单独作谓语。
1)状态系动词
用来表示主语状态,只有be一词,例如:He is a teacher. 他是一名教师。(is与补足语一起说明主语的身份。)
2)持续系动词
用来表示主语继续或保持一种状况或态度,主要有keep, rest, remain, stay, lie, stand, 例如:
He always kept silent at meeting. 他开会时总保持沉默。
This matter rests a mystery. 此事仍是一个谜。
3)表像系动词
用来表示“看起来像”这一概念,主要有seem, appear, look, 例如:
He looks tired. 他看起来很累。
He seems (to be) very sad. 他看起来很伤心。
4)感官系动词
感官系动词主要有feel, smell, sound, taste, 例如:
This kind of cloth feels very soft. 这种布手感很软。
This flower smells very sweet. 这朵花闻起来很香。
5)变化系动词
这些系动词表示主语变成什么样,变化系动词主要有become, grow, turn, fall, get, go, come, run. 例如:
He became mad after that. 自那之后,他疯了。
She grew rich within a short time. 她没多长时间就富了。
6)终止系动词
表示主语已终止动作,主要有prove, turn out, 表达“证实”,“变成”之意,例如:
The rumor proved false. 这谣言证实有假。
The search proved difficult. 搜查证实很难。
His plan turned out a success. 他的计划终于成功了。(turn out表终止性结果)