本试题 “It is not rare in ____ that people in ____ fifties are going to the university for further education.A. 90s ; theB. the 90s ; /C. 90s ; theirD. the...” 主要考查您对序数词
物主代词
等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
序数词的概念:
表示顺序的数称为序数词。如:first, second, third, fourth。
序数词的构成与用法:
1、序数词的构成:
①一般来说,是由相应的基数词加词尾th构成。
例:four+th→fourth
six+th→sixth
seven+th→seventh
ten+th→tenth
②下面这些基数词在变为序数词时,有特殊的变化。
例:one→first
two→second
three→third
five→fifth
eight→eighth
nine→ninth
twelve→twelfth
③十位整数序数词的构成方法是将基数词的词y变成i,然后再加eth。
例:twenty→twentieth
thirty→thirtieth
forty→fortieth
ninety→ninetieth
④两位或两位以上的基数词变成序数词时,仅将个位数变成序数词。
例:twenty-one→twenty-first
thirty-five→thirty-fifth
a hundred and fifty-three→a hundred and fifty-third
2、序数词的用法:
①序数词在使用时,一般加上定冠词。
例:the first book
the second floor
the third day
the fourth week.
②序数词在多数情况下都用作定语,有的也可以作表语、主语和宾语。
例:The may1st is Labour Day. 五月一日是劳动节。
My room is on the second floor. 我的房间在二楼。
The first is larger than the secon.(主语)第一个比第二个大。
Read the book from the first.(宾语)从开头读这本书。
You'll be the sixth to write.(表语)你将是第六个写的。
③序数词的前面可以加上不定冠词,用来表示“再一”,“又一”的意思。
例:You may have a third try. 你可以第三次尝试。
序数词知识体系:
约数的表达方法:
用tens/dozens/scores/hundreds/thousands/millions of 表示“几十、几百、上千、成千上万”等。
如:The boy bought dozens of pencils.
Thousands of people died in the earthquake.
注意: (A):dozen, score, hundred, thousand, million等表示确切数量时,不用复数。
如:five dozen (of) eggs 五打鸡蛋
hree hundred people 三百个人
分数词的构成和用法:
1)分数词构成法:
分数词(FractionalNumerals)由基数词和序数词构成,基数词代表分子,序数词代表分母。除了分子为1的情况下,序数词都要用复数形式:
如:1/4:one-fourth
5/9:five-ninths
2/3:two-thirds
17/5:three and two-fifths
7/12:seven-twelfths
379/8:forty-seven and three-eighths
此外还有下面表示法:
如:1/2:a(one) half
1/4:a(one) quarter
3/4:three-quarters
9/4:two and a quarter
3/2:one and half
31/4:seven and three quarters
物主代词的概念:
表示所有关系的代词叫物主代词。
物主代词有两种形式:一种是形容词性物主代词,在句中只能充当定语;另一种是名词性物主代词,和名词用法相同,在句中作主语、宾语、表语等。
物主代词的特性:
1、物主代词既有表示所属的作用又有指代作用。
例如:John had cut his finger;约翰割破了手指。
物主代词有形容词性(my,your等)和名词性(mine,yours等)两种,形容词性的物主代词属于限定词。
名词性的物主代词在用法上相当于省略了中心名词的“'s”属格结构,
如:Jack's cap 意为 The cap is Jack's.
His cap 意为 The cap is his.
2、名词性物主代词的句法功能:
a.作主语,例如:May I use your pen? Yours works better.
b.作宾语,例如:I love my motherland as much as you love yours.
c.作介词宾语,例如:Your should interpret what I said in my sense of the word,not in yours.
d.作主语补语,例如:The life I have is yours. It's yours. It's yours. 我的生命属于你,属于你,属于你。
物主代词的基本形式:
第一人称 |
第二人称 |
第三人称 | ||||
|
|
名词性 |
形容词性 |
名词性 |
形容词性 |
名词性 |
单数 |
my |
mine |
your |
yours |
his |
his |
复数 |
our |
ours |
your |
yours |
theirs |
形容词性物主代词的用法:
1、形容词性物主代词通常修饰名词,作定语。
如:We should treat her mother very well.
2、与own连用表示强调。
如:I saw it with my own eyes.
名词性物主代词的用法:
1、名词性物主代词可作主语、表语和宾语。
如:This is my desk. Yours is over there.
2、名词性物主代词常用于双重属格,于of连用。
如:This girl is a friend of mine.
物主代词知识体系:
物主代词特别用法:
1、名词性和形容词性物主代词不能混用。
如:Jack has a low opinion of Sue.
2、物主代词的单复数必须和它所指代的名词一致。
如:His idea is to do more practice every day.
3、对于anyone,anybody,everyone,everybody,应根据上下文来判断his或her,有时也可用their。
如:Has everyone finished their work?
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