请分析为什么要这样选,把涉及到的语法知识说下You had better not smoke here,Had you.

请分析为什么要这样选,把涉及到的语法知识说下You had better not smoke here,Had you.我知道had better 是固定用法,从had和not可以判断出had是情态动词或助动词,那么为什么smoke不变成过去分词,
Train as hard as you can (then/and).you will win the swimming competition...then也有然后的意思为什么不用then用and,
Three are many sports lovers in his office.some love climbing,(while/or) others enjoy swimming不知道选or为什么错,我是觉得有点不通顺,但是while放上去也不通顺啊
I dont like chicken (and/or) fish,I dont like chicken but i like fish very much选and和or都很通顺啊.
She thought i was talking about her daughter ,(while),in fact,I was talking about my daughter.完全搞不懂为什么好好的一个句子拆成断断续续的.这里的while怎么可以单独出现?
Alice,you feed the bird today,(Will you/don't you)?But I fed it yesterday这里前面明明是feed.哪里有个将来时态了?可是答案上是will you
I,who am your friend,will try my best to help you.为什么作者吧这个句子拆成这样写?
Neither Tom nor Jack and i (are/am) his student.这里我认为是就近原则,可是答案上是are
Every boy and every girl (wish/wishes) to attend the evening party这里怎么看都是复数,撇开大这里可有两种人,答案上是wishes
Over 80 percent of china population of China (is/are)peasants.这里怎么看都是一个整体啊,为什么答案上是are,概念一致和语法一致你们到底分析的?
Alice,together with two boys,(was/were) punished for having broken the rule.这里明显是alice和他的两个儿子,怎么成单数了,还有这种断句句型经常出现,到底是什么句型啊?
The great and professor (is an old man/are both old men) 这里也是明显两个人,为什么是单数
The number of deer,mountain lions and wild roses(doesnt charge/charged) much if people leave things as they are这里两个动物 还有个and怎么答案上是单数?
A chemical works (have been/has been) built there.这里works总是复数了把,可正确答案还是单数
There is one of the most interesting questions that (have been/has been) asked这里的one总是单数中的单数了把,为什么答案上是复数?
Many a man (has/have) come to help us,这里到底选哪个,一些人说单数,一些人反之
All are present and all (is/are) going on well.前面的all都用复数,后面的怎么就单数了?
Your trousers (is/are) dirty .you must have (it/them) washed裤子只有复数形式的吗.怎么知道它是两个 后面这是什么句型结构,为什么用it不行要用them
One and a half bananas (is/are) left on the table.一个半香蕉怎么是单数,怎么说都超过1个了啊
(Three-fifth/three-fifths) of the money has come out这里有点不懂 前面是基数词后面是序数词是几分之几,可是序数词后面为什么有s?
The whole class (is/are) listening to the teacher attentively.这里好像是概念一致,可是概念一致和语法一致怎么分啊.
Large quantities of water (is/are) needed for irrigation水是不可数的.为什么are是对的
What you said just now has something to do with the matter we are discussing这句怎么翻译?你刚才说的有一些问题我们正在讨论?

1.had better (not)+动词原形,这是固定用法,因此smoke不变成过去分词.
2.祈使句+and/or+句子,这个也是固定用法,相当于:if you ...+ 主句.如这句可转
换成:If you train as hard as you can ,you will win the swimming
competition.因此,这儿只能用and不能用then.
3.while"然而",表示对比,而or表示"否则".因此此题选while.
4.and和or都可连接并列成分,但and用于肯定句中,or用于否定句中,因此,此题选or .
5.与3题相同,while"然而",表示对比,由于有插入语in fact,所以while与后面的句子分
开了,这是形离而意不离.
6.Alice,you feed the bird today.实际上是一个祈使句(加上主语you,只是为了加
重语气而已).祈使句的反意问句一般用will you/won't you 反问,不能用don't you .
7.who am your friend是一个非限制性定从,先行词为I ,这儿用定从,是为了加强语气
,"我,作为你的朋友,"
8.因为neither...nor...是固定结构,作主语时,谓动坚持就近原则,即跟nor后的名词
相一致.此题用are与就近原则并不矛盾呀,因为nor后的Jack and I为复数概念嘛.
9.every+单名1+every+单名2,作主语时,谓动用单三,这也是固定用法.
10.population 作主语时,表示整体概念"总人口"时,谓动用单数,表示部分人口时,谓
动用复数."80%的中国人口"属于部分人口,因此用are .
11.[名1,together with +名2]作主语时,谓动坚持就前原则,因此用was.
12.The great and professor :great后肯定少打了一个名词.
the/a +名1+and +名2:表示同一个人,the/a +名1+and the/a +名2:表示不同的两个
人,如:a teacher and writer 一个具有教师和作家双重身份的人,a teacher and a
writer一个教师和一个作家.因此用(is an old man).
13.(doesnt charge/charged)应为(doesnt change/changed).
"the number of +名复"表示"...的数量",作主语,谓动始终用单三.所以此题选
doesn't change.
14.works 意为"工厂",A chemical works 前面用冠词a,表示一家化工厂,因此谓动用
has been.
15."one of +名复"作先行词的定从,主要限定名复,因此谓动用复数形式.因此,此题选
have been.
而"the only one of +名复"作先行词的定从,谓动用单三形式.
16."Many a +名单"作主语时,谓动用单三,因此,此题选has.
17.前面的all相当于all the people,所以谓动用are;后面的all相当于everything,
因此谓动要用单数is.
18.凡是成对出现的东西,如trousers,glasses,shoes,gloves,scissors等,作主语时,
谓动用复数(因此,此题用are和them,them指代前面的trousers),但同量词连用时,谓动
则由量词的单复数来决定.
比较:Your trousers are dirty .
There is a pair of trousers hanging on the line .
There are two pairs of trousers hanging on the line .
have (them) washed属于have sth.done 结构,表示"使某事被做" ,因为trousers是
被洗,因此要用过分washed.
19.One and a half bananas (is/are) left on the table.这题应该选are,而不是
is.因为:one and a half +名复,表示复数概念.
20.three-fifths:这个是分数的表达法,原则:
分子用基数词,分母用序数词,当分子大于1时,分母的序数词要用复数.因此此题应选
three-fifths.五分之一：one fifth.
21.概念一致:就是要根据主语所要表达的意思来决定谓动的单复数；
语法一致：就是要根据主语本身的单复数形式来决定谓动.
The whole class (is/are) listening to the teacher attentively.此句中的 The
whole class指“全班同学”,是复数概念,因此谓动用are.
而Many a man (has) come to help us.就是属于语法一致原则.Many a man明明表示
复数概念“许多人”,但形式上是单数,因此谓动还是要用单三.
22.凡是量词短语,无论是可名还是不可名,作主语时,谓动一律由量词的单复数来决定.
Large quantities of water 中的quantities 为复数,因此此题选are.
23.have something to do with "与...有关系".
翻译:你刚才所说的话与我们现在正在讨论的事情有些关系.