课件40张PPT。专题九 数词和主谓一致一、数词
1.基数词的结构特点:
(1)在表达上十位和个位之间要加连字符“-”。
(2)在百位和十位之间要用 and 连接。
(3)千位以上的数从后向前数,每三位加一个逗号。
(4)hundred,thousand,million 等前面有具体数字或 some,several 等修饰时,后面不加“-s”;但当其后跟 of 短语时,要用复数形式。2.序数词的结构特点:
(1)序数词第1~19除了 first,second 和 third 外,其余的大部分都是由基数词后加“-th”构成。
(2)十位数序数词如果含有1~9的个位数时,十位数用基数词,个位数用序数词,并且中间用连字符连接。
(3)百、千、万等的序数词由 hundred,thousand,million 等后加-th 构成。
(4)序数词前一般要加 the 表示顺序。3.分数、小数、百分数的读法和写法
(1)分数的分子用基数词表示,分母用序数词表示,分子大于一时,分母用复数;但要注意整数和分数之间必须用 and 连接。25,6 表示为 two and five sixths。
(2)在读小数时,小数点后面的数字要单独读出。小数点读成 point。
(3)百分数用“基数词+percent”表示,要注意 percent 不能用复数形式。特别提醒:①1/2一般用 a/one half 表示。
②1/4一般用 a/one quarter 表示。4.表达倍数关系的句式
(1)主语A+谓语+倍数程度+as+形容词或副词原级+as+比较对象B。
(2)主语A+谓语+倍数程度+the+度量名词+of+比较对象B。
(3)主语A+谓语+倍数程度+what从句。
(4)主语A+谓语+倍数程度+形容词或副词的比较级+than+比较对象B。
(5)主语A+谓语+形容词或副词的比较级+than+比较对象B+by+倍数。特别提醒:表达倍数时,一倍用 once,两倍用 twice/double,三倍或三倍以上才用“基数词+times”表示。二、主谓一致
(一)主谓一致三原则
1.语法一致的原则。即主语是单数,谓语为单数;主语若为复数,谓语亦为复数。例如:
He does well in maths.
2.意义一致的原则。根据主语的意义,而不是形式,决定谓语的数。例如:
The teacher and writer is going to give us a lecture on writing.
那位老师兼作者准备给我们讲讲如何写作。
3.就近一致的原则。即谓语与靠近的那个主语一致。例如:
Either he or I am right.特别提醒:①三个原则虽然不同,但在具体运用中,它们往往是协调的,并不矛盾。例如:
More than ten students have passed the driving test.(形式和意义都是复数)
②当语法一致的原则与意义一致的原则发生冲突时,一般坚持语法一致的原则。例如:
More than one student has passed the driving test.(形式是单数,意义是复数) (二)主谓一致细说
1.谓语用单数时的情况
(1)不可数名词做主语时。例如:
There is a lot of water in the jar.特别提醒:不可数名词前若有表示数量的物量词,则谓语动词与物量词本身的形式一致。例如:
One million tons of oil were produced last year.
(2)不定式短语、动名词短语和从句做主语时。例如:
That she will come here tomorrow is certain.特别提醒:①what 从句做主语时,谓语动词的形式主要取决于后面的表语是单数还是复数。试比较:
What they want is nothing but a rest.
What he wants are two books.
②当 what 从句表示所说的话或所做的事时,谓语动词应用单数。例如:
What he said has left us much to think about. (3)主语是形单意单的词
①主语若是单数名词,后面尽管跟有 as well as,with,together with,besides,except,but,including,rather than 等引导的短语,谓语仍用单数。例如:
The teacher as well as his students is playing football.
In some parts of the world,tea is served with milk or sugar.
②主语是 each 或单数主语被 each,every 修饰时。例如:
Each of the boys has a pencil box.
Here every student is good at drawing.特别提醒:单数的并列主语被 every,each,no,many a 修饰时,谓语也用单数。例如:
Every desk and chair is new.
Each teacher and each student has been told to attend the meeting after school.特别提醒:each 做主语的同位语时谓语由前面的主语决定。例如:
They each have finished their exercises.
③主语是 either,neither,the other 或主语被 either,neither 修饰时。例如:
Either of the answers is correct.
Neither answer proves to be correct.
④every/some/any/no+body/one/thing 构成的复合不定代词做主语时。例如:
Nobody is absent.⑤主语是a kind/sort/type of+单数或复数名词时,因为kind/sort/type 是短语中的中心词,也是信息的焦点,所以,谓语应与其一致。例:This kind of wheat isn't grown in our country.
(4)主语是形复意单的词
①以 s 结尾的国名、人名、书名、组织机构等专有名词作主语时。例如:
The United Nations(联合国) was founded in 1945.
②以 s 结尾的学科名词做主语时。例如:
Physics is taught in all middle schools.
③“One and a half+复数名词”做主语时。例如:
One and a half days is all I can spare.2.谓语用复数时的情况
(1)主语是形单意复的词
①people,police 等集合名词做主语时。例如:
The police have caught the thieves.
②“the/these/those+形容词/分词形容词”可以表示一类人,这一结构做主语时。例如:Those wounded were taken good care of.
“the+形容词”还可表示抽象事物,这时应视做单数。例如:
The beautiful gives pleasure to people.
③“the+表示国籍、民族的形容词”可以表示该国全体人民,这一结构做主语时。例如:
The Chinese are a brave and hard-working people.(2)主语是形复意复的词
①某些具有抽象意义的复数名词做主语时。例如:
Things are getting worse and worse.
The surroundings are usually quiet here.
②“one or two+复数名词”做主语时。例如:
There are one or two tickets left.③glasses,compasses,trousers 等由两部分连成一体的名词做主语时。例如:
My trousers are worn out.
若前面有 pair 等物量词,则谓语由该物量词的形式决定。例如:
There is a pair of compasses on the desk.
There are two pairs of glasses needing to be repaired. 3.谓语用单数或复数均有可能
(1)表示时间、金钱、距离、重量等的复数名词被看做整体时,谓语用单数。例如:
Ten dollars is what he needs.
Twenty kilometres isn't a short distance.
若侧重于一个个的个体,则用复数。例如:
Five years have passed since I joined the League.(2)and 连接并列的名词做主语时,谓语一般用复数。例如:
Reading and writing are both very important.
Hard work and plain living (艰苦和朴素) are the fine qualities of a person.
若该结构表示一个单一的概念或指同一人、物时,谓语用单数,但这时两个名词前加一个冠词。例如:
The maths teacher and class teacher(班主任数学老师) is very strict with us.
Bread and butter(涂有黄油的面包)is their daily food.
Hard work and plain living(艰苦朴素)is a weapon with which we have won one victory after another. (3)family,class,group,team,crowd,crew,enemy,committee,population 等集合名词做主语时,若强调整个集体,谓语用单数。例如:
The population of China is large.中国人口众多。
若强调集体中的各个成员,谓语用复数。例如:
Nearly 80% of the population of China are farmers.
中国将近百分之八十的人口是农民。 (4)what,which,who,some,any,more,most,all 等词做主语时,谓语动词的数根据实际意义确定。例如:
All is silent.万籁俱寂。(all 指代整个情况、事件时是单数)
All are silent.所有的人都不做声。(all 指代人或物时,是复数)
(5)none 做主语时,若指代可数名词,谓语用单数和复数均可以;若指代不可数名词,谓语用单数。 (6)“half of,part of,most of,eighty percent of,one third of,the rest of+名词/代词”做主语时,谓语根据后面的名词或代词而定。例如:
Most of the people agree with us.
Most of the money is spent on clothes.
(7)单复数同形的名词做主语时,谓语动词要根据主语的意义而定。例如:
All means have been tried.
Every means has been tried.(8)在四则运算中,加法、乘法后面的谓语动词用单、复数均可,减法、除法后面的谓语动词只能用单数。例如:
Three plus three makes/make six.
Thirty-five divided by five is seven. (四)谓语与相邻的那个主语一致
(1)either...or,neither...nor,not only...but also,not...but,or 等连接两个并列的主语时,谓语须与靠近的那一个主语一致。例如:
Either you or I am wrong.
Are neither you nor he for the plan?
(2)在 here is,there is 或其他状语提前的倒装句中,谓语动词的形式也适用邻近原则。例如:
Here is a pen and two pieces of paper for you.5.主谓一致的其他情况
(1)在强调结构中,当被强调部分是主语时,从句中的谓语须与被强调词一致。例如:
It is I who am to answer for her safety.
(2)定语从句中的谓语动词在意义上应与先行词一致。例如:
Do you know the girls who are soldiers?
①当先行词为“one of+名词复数”时,定语从句中的谓语动词用复数。例如:
She is one of the girls who have passed the exam.②当先行词为“the(only)one of+名词复数”时,定语从句中的谓语动词用单数。例如:
She is the only one of the girls who has passed the exam.
(3)“many a/more than one+单数可数名词”做主语时谓语用单数。例如:
Many a student has joined the League recently.
(4)“the number of+名词复数”做主语时谓语用单数。
“a number of+名词复数”做主语时谓语用复数。例如:
The number of the students in our school is larger than that in their school.
A number of people are against the proposal. [名校模拟演练]1.(2010·甘肃天水一中)The exercises are extremely difficult, but half of the class ______ them ahead of time.
A.has already finished B.will finish
C.have already finished D.finishes
解析:考查时态及主谓一致。语意表明谓语动词用现在完成时;class, family, army, government, group, team, staff, committee, nation, company等集合名词作主语强调整体时,谓语用单数,如果强调个体,则用复数。句中强调个体,所以用复数。
答案:C2.(2010·北京海淀)Three quarters of the forest ______ burnt to ashes, and the rest ______ cut down for construction.
A.was; has been B.was; have been
C.have been; is D.are; has been
解析:Three quarters of+n. 谓语动词取决于名词 the forest, 谓语用单数;第二空 the rest 也指代 forest, 谓语也用单数。
答案:A3.(2010·杭州一中月考)Jane is one of the best students in her class who ______ by their teacher.
A.are praised B.is praised
C.praised D.praise
解析:one of+复数名词做先行词时,定语从句中谓语动词用复数形式,且表被动,故选A。
答案:A4.(2010·合肥联考)The population of this area ______ 100 000. Seventy percent of the population ______ natives and the rest ______ from China.
A.is; is; is B.are; are; is
C.is; are; are D.are; is; are
解析:第一空 population 指“人口数量”,谓语动词用单数;第二空 population 指“人”,谓语动词用复数;第三空 the rest 指“其他的人”,谓语动词用复数。
答案:C5.(2010·重庆联考)Soon after feeling the slight shaking, every man, woman and child ______ about the earthquake that night.
A.were talking B.was talking
C.had talked D.talking
解析:every+单数名词,谓语动词用单数。
答案:B6.(2010·皖中联考)All the employees except the manager ______ to work online at home.
A.encourages B.encourage
C.is encouraged D.are encouraged
解析:except 连接并列主语时,谓语动词与前一主语一致,且表被动,故选D。
答案:D7.(2010·杭州检测)Yesterday the League secretary and monitor ______ asked to make a speech at the meeting.
A.is B.was
C.are D.were
解析:the League secretary and monitor 指“一个人”,谓语动词用单数。
答案:B8.(2010·皖西检测)The results of the examination ______ that you have all made great ______.
A.show; progress
B.shows; progress
C.show; progresses
D.shows; progresses
解析:第一空主语是 the results, 谓语动词用复数;第二空 progress 是不可数名词,不加 s。
答案:A9.(2010·安庆一中月考)Either your parents or your elder brother ______ to attend the meeting tomorrow.
A.is B.are
C.are going D.have
解析:either...or... 连接并列主语,用就近一致原则,故选A。
答案:A10.(2010·黄冈检测)Neither of the novels which ______ popular with us ______ been translated into Chinese.
A.are; has B.are; had
C.is; have D.is; has
解析:定语从句的先行词是 novels,故从句中谓语用 are;第二空主语是 neither,谓语用 has 或 have 都可以。
答案:A