语法系列讲座21
What he is doing and whether I know him are two different things.他在干什么和我是否认识他是两件不同的事。
What she told me is none of your business. 她和我说的什么用不着你管。
What she told me and what she told you are totally different things.
以what从句为主语的“主一系一表SVC"句型中，如果主句的表语是复数，主句谓语动词用复数形式;what从句本身是复数意义，主句谓语动词也可用复数。
如：What I need buy now are four tea cups and a pair of sports shoes.
我需要买的是四只茶杯和一双运动鞋。
What were thought to be five dogs were actually five sheep.
被认为是五条狗的东西实际上是五只羊。
3.集体名词family，class，crew(全体船员或机组人员)，crowd, group, committee, audience, government, public, team, staff, population等做主语时，若作为一个整体看待，后面谓语动词用单数; 如就其中每一个成员来考虑时，则用复数。
例如: My family is a big one.我家人多。
My family are all music lovers. 我全家人都爱好音乐。
Eighty percent of China' s population are peasants. 百分之八十的中国人口是农民。
China has a huge population. 中国有众多的人口。
The population of China is the largest in the world. 中国的人口是世界上最多的。
People, police, cattle,(牛)，militia(民兵)，poultry(家禽)，vermin(害出)等作主语时，后面的动词要用复数。
如：There were many people waiting outside. 有许多人在外面等着。
The police are searching far the murderer. 警察在搜捕凶手。
The cattle are grazing in the fields. 一群牛在田野里吃草。
Foliage(树叶)，machinery(机械)，equipment(设备) ,furniture(家具)，merchandise(商品)等通常做不可数名词，动词用单数，
如:The merchandise has arrived undamaged滴品已经到达，毫无损坏。
All the machinery in the factory is made in China. 本工厂里的所有机械都是中国制造的，
4.不定代词either，neither，ever y，each，one，the other, another以及所有的复合不定代词作主语时，谓语动词只用单数，包括“every/each/no……and every/each/no……”作主语时。
如：Every/Each plane and every/each pilot is ready to take off.
每架飞机和每个飞行员都已准备好起飞。
No plane and no pilot is ready to take off.
没有一架飞机、没有一个飞行员已准备好起飞。
Here are two books. Either of them is worth reading.
这有两本书，都值得一读。
Neither of these two dictionaries contains this ward.
这两本词典都没收入这个字
Everyone is here. No one is absent. 大家都到了，没有人缺席。
Somebody is using the phone. 有人在用电话。
I have two sisters. One is here, and the other is not here.
我有两个姐妹，一个在这儿，一个不在这儿。
Each day is better than the one before. 一天比一天好。
Either day is OK. 两天中哪一天都行。
5. what，who，which，any，mare，some，half，mast，all，none.等代词可以是单数，也可以是复数，主要靠意思决定。但指不可数名词时作单数看待。
例如：Which is your book? Which are your books?
Here' s same mare (coffee). Here' re same more (tomatoes).
None of the books are/is easy enough for us.
Most of Most of
All of All of
Some of The money was stolen Some of The member was there.
Half of Half of
None of None of
Two thirds of Two third of
由Many a或mare than one所修饰的词做主语时，意义上虽然是复数，但谓语动词用单数形式。none在代表不可数的东西时总是看作单数.
如：Many a person is far his plan. 很多人赞成他的计划。
Mare than one people is against his plan. 不止一个人反对他的计划。
6.表示时间、重量、长度、价值等的单位名词，尽管是复数形式，如果作整体看待，动词都用单数形式。如果看作组成该数量的一个一个的个体，则动词用复数。
如：Twenty miles is a long way to walk. 走二十英里可是很长的一段路。
Ten years is a long time。十年很长。
Eight minutes is enough. 八分钟够了。
Twelve dollars is too dear. 十二美圆太贵了。
There are six silver dollars in each of the stacking. 每只袜子里有六个一美元的银币。
7. “the+形容词”表示一类人时，谓语动词用复数。表示抽象概念或指个别事物时谓语动词用单数。
如：The old are well taken care of. 老人得到很好的照顾。
The beautiful is laved by all. 人人都爱美，
The difficulty we do at once. The impassible takes a little loner.
困难的事情我们马上做。不可能的事情需要稍微长一点的时间。
还有the unknown(未知的事物)，the unexpected(出乎意料的事)，等等。
8. 如果主语由"a kind/sort/type of this kind/sort/type of +名词”组成，不管名词是单数还是复数，动词通常用单数。
如：This kind of man annoys me. =This kind of men annoys me. 这种人让我烦。
This kind of apple is very expensive. = This kind of apples is…这种苹果很贵。
类似的还有:a portion of(一部分)，a series of(一系列)，a pile of(一堆)，a panel of (一个小组委员会)，
如：A series of accidents has happened here. 这里发生过一系列事故。
9. Means作“方法、手段”讲时，单复数同形，其前面有each, every, neither, either,等单数a念的定语时，谓语动词用单数;若有all, both，these等复数概念的定语时谓语动词用复数。
“None of the means”作主语时，谓语动词通常用单数。
如：There is/are no means of learning what is happening. 没法知道正在发生什么事。
No means is /are left untried. 没有没试过的方法了。
Every means is to an end. 每一种手段都能达到一种目的。
A bicycle is a means of transport. 自行车是一种交通手段。
All possible means have/Every possible means has been tried.所有的方法都试过了。
三、就近一致
1.当主语由either...... or. neither...... nor , not only ...... but(also) 或or连接时，谓语动词通常和最临近的那个主语一致。
例如：Either you or he is to do the work. 不是你就是他来做这件事。
Not only you but also Tom often comes late to class. 不光是你，汤姆上课也迟到。
Neither the children nor the teacher knows anything about it.
孩子们和老师都不知道这件事。
2.当there be结构后面有并列主语时，谓语也和最临近的那个一致。
如：There is a dictionary and many books on the table.
桌子上有一本词典和许多本书。
There' re ten chairs and a table in the house.
屋子里有十把椅子和一张桌子。
Here is a pen, a few envelopes and same paper far you.
这儿有一支笔，几个信封和一些纸给你。
这种就近一致的情况在非正式文体中越来越普遍。但在下列情况不提倡模访。
如：Where is your mother and sisters?
你妈妈和你姐妹到哪儿去了?
Is your sister and her husband coming to see you?
你姐姐和姐夫要来看你吗?
One in ten are expected to take part in the contest.
预计每十个人就有一个要来参加这次比赛。
3.做主语的名词或代词后接with，together with，along with，as well as等短语时，谓语动词一般和前面名词或代词一致。这些短语前后可用可不用逗号。
如：A woman with a baby is coming to the hospital
一个妇女抱着个婴儿正向医院走来。
The girl, as well as the bays , has learned to drive a car.
这个姑娘和那些那孩子一样也学会了开汽车。
二、代词一致
代词一致是指句子中代词应在数、性、人称等方面彼此保持一致，
如：One must do one' s best to increase production.
Everybody talked at the tap of his/their voice.
If anyone calls, tell him I' 11 be back in a moment. (him也可用him or her代替)
在写作中，如果表示不定的人，可以用you, we, one等，需要注意的是：同一篇文章中，只用同一个不定代词，而且所有格要与其一致。
三、肯定与否定一致
下列形容词、副词、代词从肯定句变成否定句时，须作相应的变化:
肯定句 否定句
We've had some money. We haven't had any money.
I was talking to someone I wasn't talking to anyone.
They sometimes visit us. They rarely (never, seldom) visit us.
He has arrived already. He hasn't arrived yet.
Li is coming too. Li isn't coming either.
Both of us are going. Neither of us are going.
He likes both of them. He doesn't like either of them.
注意：“so/neither+助动词/情态动词+名词/代词”结构中须用倒装语序，
如：My wife likes classical music very much and so do.
She doesn' t like jazz and neither do.
Now let' s do multiple choice exercises:
1) __d__ great number of people visit the Palace Museum every day.
a. There are a b. While a c. They are d. A
2) The disabled __b__ trades in special schools.
a. is taught b. are taught c. be taught d. have
3) The captain, as well as the coaches __d__ by Xiao Zhou' s performance in the match.
a. was impressed b. had impressed c. impressed d. be impressed
4) Every means __a__ been tried ever since the machine brake down.
a. has b. have c. are d. is
5) The number of motorcycles __b__ lest the roads became too crowded.
a. are to be limited b. is to be limited c. have to be limited d. to be limited
6) You as well as he __a__ to blame far the accident.
a. are b. is c. have d. has
7) Neither you, nor I nor anyone else __d__ the answer
a. is knowing b. are knowing c. know d. knows
8) The high standard of the nation' s literature, art, and science __c__ widespread attention.
a. was captured b. have captured c. has captured d. were captured
9) No one except his parents __b__ where the bay has gone.
a. know b. knows c. has known d. have known
10) Neither my wife nor I myself __d__ able to teach my daughter to sing English songs.
a. has been b. is c. are d. am
11)My father seldom watches television in the evening. __d__
a. So does my mother b. My mother does either
c. My mother doesn' t too d. Nor does my mother
12) "I am going to visit the Marco Palo Bridge tomorrow." “__b__”.
a. I am so b. So am i c. So go i d. So I go
13)I haven' t read today' s People' s Daily Yet, and I haven' t read today' s China Daily. __c__
a. bath b. too c. either d. neither
14) Mary has lived in London and Manchester, but doesn' t like __b__ very much.
a. both b. either c. the two d. both of
15) Li Hong and I can go to the beach with you. __c__
a. but either can Xiao Wang b. and so Xiao Wang car
c. but Xiao Wan can' t d. and Xiao Wan also can
16) 1f Bob' s wife wan' t agree to go an holiday in winter, __c__
a. neither he will b. neither wan' t he c. neither will he d. he want neither
17) "Do you want to have coffee or tea?" “Oh, __b__ ”.
a. either does well b. either will do c. each is good d. each will be fine
18) "Xiao Zhou plays computer games all the time." "__a__ does Li Hong.”
a. So b. Either c. Neither d. Also
19)I haven' t finished my homework yet, __d__
a. So has he b. Neither he has c. He has too d. He hasn' t either
20)I would like another drink and __b__
a. so does John b. so would John c. John does too d. John will too.
定语从句
所谓从句，就是一个主谓结构相当于整个句子(这样的句子叫复合句)的一个成分，因此，从句不能单独使用。在复合句中修饰名词或代词、作定语的句子叫定语从句。定语从句是中国人学英语的难点之一。
其实定语从句很有规律，总结如下:在关系代词中that既可指人又可指物、既可作主语又可作宾语，因此，除了在非限定性定语从句中，用that一般不会出问题。
关系副词的用法比较单一，它们从句中只起状语的作用，表示时间的就用who门，表示地点的就用where，而why只修饰一个词，即reason。
定语从句所修饰的词叫“先行词”，因为它总是处在定语从句的前头，比定语从句先行一步。
引导定语从句的词叫关系词，包括关系代词和关系副词。
关系代词：
who，which，that作从句的主语
whom，which，that作从句的宾语(可省略)
whose从句中作定语
以下情况只能用that，不能用which:
i. 先行词为不定代词all, little, none，any，every，no，much, anything, nothing
ii. 先行词有最高级和序数词修饰时(包括: the only, the very, the same, the last, the next等)
iii. 先行词既有人又有物的时候
以下情况只能用which，不能用that;
① 引导非限制性定语从句(包括代表整个主句的意思时)
② 介词+关系代词的结构中
关系副词：
when指时间，在定语从句中作时间状语
where指地点，在定语从句中作地点状语
why指原因，在定语从句中作原因状语，只修饰reason。
如果用定语从句把两个句子合二为一:首先找出两个句子当中相同的部分，定语从句修饰的就是这一部分。要把其中一个句子变成定语从句，就要把这句中相同的那个部分用一个关系词来代替;代替时，先看被代替的部分是指人还是指物、再看它作什么句成分。指人并作主语的，就用who。或that;指人并作宾语的，就用whom或that;指人并作定语的，就用whose。指物并作主语的，就用which或that认指物并作宾语的，还是用which或that认是物并作定语的，就用whose或of which。这样找好并替换以后，再把这个关系代词放到要变成定语从句的那个句子的最前面(被代替的部分不能再保留，其它的词语一律不变)，这个句子就变成了定语从句。然后，再把这个定语从句整个放在被修饰的词后面，最后，如果还有其它句子成分，就把它们放到定语从句的后面，就行了。
例如：
Have you found the book? You were looking for the book yesterday.
在这两个句子中，the book是相同的，定语从句修饰的就是the book。把后面这一句变成定语从句，找个关系词来代替the book；在将要被变成定语从句的名子中，the book是物并作宾语，所以用which或that代替它。
然后把which或that放到本句的最前面，其它的词和语序一律不变。这时，就成了"that/which you were looking for yesterday?”，再把这个定语从句整个放在被修饰的词后面，就成了“have you found the book that/which you were looking for yesterday?”定语从句就完成了，主句是问句，所以句末用问号。that/which代替的是原句中的宾语，原句变成了从句，它们仍然
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