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高中一年级英语

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  • 单选题
    ______ of the land in that district _______ covered with trees and grass.

    [     ]


    A. Two-fifth; is
    B. Two- fifth; are
    C. Two-fifths; is
    D. Two-fifths; are
    本题信息:2012年江西省月考题英语单选题难度一般 来源:姜雪
  • 本题答案
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本试题 “______ of the land in that district _______ covered with trees and grass.[ ]A. Two-fifth; isB. Two- fifth; areC. Two-fifths; isD. Two-fifths; are” 主要考查您对

分数

主谓一致

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。
  • 分数
  • 主谓一致

分数的概念:

一般情况下,表示分数时,分子要用基数词,分母用序数词(first, second, third ...)。如果分子大于1,分母必须用复数形 式。 
      


分数的表示法:

分数由基数词和序数构成—分子用基数词,分母用序数词,分子超过“1”时,分母用复数:
如:a[one] sixth 六分之一
        two thirds  三分之二
        three fifths  五分之三

(1)1/2 通常读作a[one] half,一般不读作a second。
(2)1/4 可读作a[one] fourth,也可读作a[one] quarter。
(3)分子超过“1”分母之所以用复数可以这样理解:“三分之二”即两个(two)三分之一(third),既然是两个“三分之一”,那“三分之一”当然要用复数,即用thirds。
(4)在数学上,为了简洁起见,分子和分母均可用基数词,其间用介词over:3/4读作three over four(对于比较复杂的分数通常采用此读法)
(5)带分数的读法:在整数与分数之间用and连接:five and two thirds


分数在句中的作用:

1、主语:
如:A quarter of the population voted for him. 四分之一的人投他的票。
        The other third of the black population live in poverty. 另外三分之一的黑人生活在贫困之中。
        Three-fifths of the computers on display were home-made. 展出的电脑五分之三是国内生产的。
2、宾语或介词宾语:
如:Mother divided the cake into thirds. 妈妈把蛋糕分成三份。
        Give a quarter of the pie to each of them. 给他们每人四分之一块馅饼。
        They account for one-senventh of the population. 他们占人口的七分之一。
3、表语或同位语:
如:The crop that year was only one-third of the usual amount. 那年的收成只是常年产量的三分之一。             
Over twelve million people, about three-fifths of the local population are Hans. 有一千二百多万人是汉人,约占当地人口的五分之三。
4、定语:
如:It's one-twentieth the thickness of a human hair.它相当于人的头发丝二十分之一那么细。  
        The mass of an electron is1/850 that of a hydrogen atom. 电子的质量相当于氢原子质量的1/850。
        It produces power at 1/8 the cost in a thermal power plant. 它的发电成本只是热电厂成本的八分之一。
5、状语:
如:China is one-sixth larger than the United States. 中国比美国大六分之一。
        This substance reacts one-tenth as fast as the other one. 这种物质的反应速度只是另一种物质的十分之一。


百分数的表示法:

百分数由基数词(或小数)和百分号(%)组成,百分号(%)读作percent:
如:fifteen percent(15%),
       (zero)point six percent(0.6%)
注:百分数后接名词时有时用介词of,有时不用:
如:30% of the students (30%的学生)
        a 30% chance (30%的把握)
两者的区别是:后接介词of时,percent为名词,of表示整体中的部分;不接介词of时,percent为形容词(此时不表示整体与部分的关系)。
如:6 percent of the interest=利息中的百分之六
        at 6 percent interest=按百分之六的利息。
注:当百分数、分数后面加名词或代词时,要根据这个名词或代词来决定其谓语动词的单复数形式。如果是复数名词或代词,谓语动词用复数;如果是单数名词(或不可数名词)或代词,谓语动词用单数。


主谓一致的概念:

谓语的数必须和主语的人称和数保持一致,这就叫主谓一致。


主谓一致的基本原则:

1)语法一致原则,即在语法形式上取得一致。例如,主语是单数形式,谓语动词也采取单数形式;主语是复数形式,谓语动词也采取复数形式。
例如:The students are very young.
            This picture looks beautiful.
2)意义一致原则,即从意义着眼处理一致关系。例如,主语形式虽是单数但意义是复数,谓语动词也采取复数形式;
而有些主语形式虽是复数但意义上看作单数,谓语动词也采取单数形式。
例如:The people in that country are fighting for independence.
            The crowd deeply respect their leader. 
            Three years in a strange land seems a long time.
3)就近原则,即谓语动词的单数或复数形式取决于最靠近它的词语。
例如:Neither hen or I am going to see the film tonight because we are busy.


几对容易混淆词组的一致用法:

1、由“this/thatkind/typeof+名词”作主语,谓语动词用单数形式;而由"these/thosekind/typeof+复数名词”作主语,谓语动词用复数形式。
例如:This kind of apples is highly priced.
            Those kind(s) of tests are good.
2、由“a number of,a totalo f,an average of+复数名词”作主语,谓语动词用复数形式;由“the number of,the total of,the average of+复数名词”作主语,谓语动词用单数形式。
例如:A number of students are waiting for the bus.
            The number of the students in this university is increasing yearly.
3、one of,the(only) one of的一致用法
例如:This is one of the books that have been recommended.
            This is the(only) one of the books that has been recommended.


 主谓一致用法点拨:

1、并列结构作主语谓语用复数:
如:Reading and writing are very important.
注意:当主语由and连结时,如果它表示一个单一的概念,即指同一人或同一物时,谓语动词用单数,and此时连接的两个词前只有一个冠词。
如:The iron and steel industry is very important to our life.
典型例题:
The League secretary and monitor___asked to make a speech at the meeting.
A. is
B. was
C. are
D. were
答案:B.
注:先从时态上考虑。这是过去发生的事情应用过去时,先排除A、C本题易误选D,因为The League secretary and monitor 好象是两个人,但仔细辨别,monitor前没有the,在英语中,当一人兼数职时只在第一个职务前加定冠词。后面的职务用and相连。这样本题主语为一个人,所以应选B。

2、主谓一致中的靠近原则:
1)当there be句型的主语是一系列事物时,谓语应与最邻近的主语保持一致。
例如:There is a pen, a knife and several books on the desk.
            There are twenty boy-students and twenty-three girl-students in the class.
2)当either…or…与neither…nor,连接两个主语时,谓语动词与最邻近的主语保持一致。
如果句子是由here, there引导,而主语又不止一个时,谓语通常也和最邻近的主语一致。
例如:Either you or she is to go. 
            Here is a pen, a few envelops and some paper for you.

3、谓语动词与前面的主语一致:
当主语后面跟有with, together with, like, except, but, no less than, as well as等词引起的短语时,谓语动词与前面的主语一致。
例如:The teacher together with some students is visiting the factory. 
            He as well as I wants to go boating.

4、谓语需用单数:

1)代词each和由every, some, no, any等构成的复合代词作主语,或主语中含有each,every,谓语需用单数。
例如:Each of us has a tape-recorder. 
2)当主语是一本书或一条格言时,谓语动词常用单数。
例如:The Arabian Night is a book known to lovers of English. 
3)表示金钱,时间,价格或度量衡的复合名词作主语时,通常把这些名词看作一个整体,谓语一般用单数。(用复数也可,意思不变。)
例如:Three weeks was allowed for making the necessary preparations.
            Ten yuan is enough.

5、指代意义决定谓语的单复数:
1)在代词what, which, who, none, some, any, more, most, all等词的单复数由其指代的词的单复数决定。
例如:All is right. (一切顺利。)
            All are present. (所有人都到齐了。)
2)集体名词作主语时,谓语的数要根据主语的意思来决定。
例如:family, audience, crew, crowd, class, company, committee等词后用复数形式时,意为这个集体中的各个成员,用单数时表示该个集体。
例如:His family isn't very large. 他家不是一个大家庭。
            His family are music lovers. 他的家人都是音乐爱好者。
但集合名词people, police, cattle, poultry等在任何情况下都用复数形式。
例如:Are there any police around?
3)有些名词,如variety, number, population, proportion, majority等有时看作单数,有时看作复数。
A number of+名词复数+复数动词。 The number of+名词复数+单数动词。
例如:A number of books have lent out.
            The majority of the students like English.

6、与后接名词或代词保持一致:

1)用half of, part of, most of, a portion of等词引起主语时,动词通常与of后面的名词,代词保持一致。
例如:Most of his money is spent on books.
            Most of the students are taking an active part in sports.
2)在一些短语,如many a或more than one所修饰的词作主语时,谓语动词多用单数形式。
但由more than…of作主语时,动词应与其后的名词或代词保持一致。
例如:Many a person has read the novel. 许多人都读过这本书。
            More than 60percent of the students are from the city. 百分之六十多的学生都来自这个城市


主谓一致知识体系:

 


主谓一致用法拓展:

1)当everyone,everybody,noone,nobody,anyone,anybody,someone,somebody,everything,anything,something,nothing等用作主语时,其相应的代词一般用单数形式。
例如:If anybody calls, tell him that I'm out.
            Something strange happened, didn't it? 
2)人称代词与名词的呼应:人称代词I(me),he(him),she(her),it(it) 都是代替前面的单数名词,而they(them),we(us)则是代替复数名词的,you既可以代表单数,也可以代表复数。但表示泛指的时候,用he或one来表示。
例如:If a young person enters a classical music field only for money, he is in the wrong profession. 
3)物主代词与名词的呼应:my,our,his,her,its,their要与代替的名词在数上一致。
例如:The welfare department,as well as the other social services,will have its budget cut.
4)反身代词与其所代成分间的呼应。
例如:Many primitive people believed that by eating ananimal they could get some of the good qualities of that animal for themselves.
5)指示代词与所代名词间的呼应:this和that指代单数名词或不可数名词,these和those指代复数名词(those还可以用作先行词,引导定语从句,表示“那些人”)。
例如:She invited all those who had been her former colleagues.
6)much和muchof后接不可数名词,而many和manyof后接可数名词的复数。
例如:There is not much coal left.
            A great many of the houses were knocked down by the earthquake.
7)表示量的词后面有的接可数名词,有的接不可数名词。
接可数名词的有:a number of,a rangeof,a series of十复数名词;
接不可数名词的有:a great deal of,an amount of十不可数名词;
既可接可数又可接不可数名词的有:a lot of,a variety of。
例如:1.The government attached a great deal of importance to education.
            2.Quiteanumberofwomenappliedforthisjob.
            3.The college library has avariety of books.
            4.An apple is avariety off ruit.