连接单词

My brother and I study in the same school.

and

连接短语

Our knowledge may come from the books and from   practice.

连接句子

We are singing and they are dancing.

but

表示转折

I have a pen but no pencil.

nothing but 除了，只有

I did nothing but watched it.

or

表示否则

Hurry up, or you will be late.

for

表示后面的句子是原因

He is good at math, for he studies harder than others.

still

表示后句概念由前句转折而来

The weather is very cold, still we needn’t wear more clothes.

not only…but also

不仅……而且……，可并列主、谓、宾、表及 句子。主语并列时，谓语要就近一致。

Not only he but also I am a teacher.

as well as

以及，同样。并列单同、短语、句子。并列主 语时，动词要随前面的主语变化。

He works as well as he can.

either... or

既…又…，或…或…，并列主、谓、宾、表及状语

Either come in or go out.

Neither…nor

既不……也不……，并列主、谓、宾、表、状 语，并列主语时，谓语就近一致。

Neither you nor he speaks French.

both... and

和，既……也……，并列主、谓、宾及表语

I can play both football and basketball.

nor

也不，引导句子要倒装

He can not speak English, nor can I.

so

因此，所以，不与because连用

You like apples• so do I.

after

表示时间，“在……之后”

After I finished the school, I became a worker in the   factory.

although/

as though

表示让步，“尽管”

Although she is young, she knows a lot.

as

表示时间，“当……时”；方式“像……”?原 因，“由于、因为”；让步，“尽管、虽然”

As it was late, we must go now.

as if/as though

表方式，“似乎、好像”

He told such a story as though he had been there   before.

as long as/

so long as

表条件，“只要”

As long as I am free, I’ll go to help you.

as soon as

表时间，“一……就……”

I will phone you as soon as I come back.

because

表原因，“因为”

I have to stay in bed because I am ill.

before

表时间，“在……之前”

You should think more before you do it.

even if/even though

表让步，“即使”

You should try again even if you failed.

no sooner…than…

表时间，“刚一…就…”

No sooner had I come home than it began to rain.

now that

表原因，“既然、因为、由于”

Now that the crops are in, wc can start to make   preparations for winter sowing.

once

表时间，“一旦……’，

Once you know the rules, you’ll have choice to obey them.

since

表时间，“自从……以来”

He has been in this company since he left school.

表原因，“既然、由于”

Since the job is dangerous，let’s do it more carefully.

so far as/

as far as

表条件，“就……而言、就……而论”

As far as I know, it is easy for you to speak in   English.

so that

表目的，“以便”

Speak loud so that everybody can hear clearly.

So… that…

表结果，“如此……以致……”

He got up so late that he missed the bus.

than

表示比较•“比”

Tilings were worse than we thought.

that

无词义，引导名词性从句

It is dangerous that we walk on the thin ice.

引导定语从句和状语从句

She hurried that she might not be late for work.

unless

表条件，“除非、如果不”

I will go to the zoo unless it rains.

until/till

表时间，“直到……为止”

I’ll wait till he comes back.

when

表时间，“当……时”

When they got there, the train has left.

whether

“是否”引导名词性从句

Whether he can come to see us is unknown.

表让步，“不管、无论、是否”

Whether she is ill or well，she is always   happy.

表时间，“当……时”

While he was in Beijing, he visited the Great Wall.

while

表让步，“尽管、既然”

While I find the problems very difficult, I don’t think them insoluble.

whenever

表时间，“无论什么时候”

Whenever you meet any trouble，tell me at oncc.