1.and 连接单词 My brother and I study in the same school.
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.
2.but 但是/而是 I have a pen but no pencil.
or 或者 Will you go there by bus or on foot?
3.nothing but 除了，只有 I did nothing but watch it.
4.or表示否则 Hurry up or you will be late.
5.for 表示因为 He is good at math for he studies harder than others.
The weather is very cold, still we needn’t wear more clothes.
7.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.
8.as well as 以及，同样 并列单词、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
9.either…or 既…又…，或…或… 并列主、谓、宾、表及状语 Either come in or go out.
10.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.
12.both…and 和，既…也 并列主、谓、宾及表语 I can play both football and basketball.
13.nor 也不，引导句子要倒装 He can not speak English, nor can I.
You like apples, so do I.
After I finished the school, I became a worker in the factory.
2.although/though 表示让步， “尽管” Although she is young, she knows a lot.
As it was late, we must go now.
4.as if/as though 表方式，“似乎、好像”
He told is such a story as though he had been there before.
5.as long as/so long as 表条件，“只要” As long as I am free, I’ll go to help you.
6.as soon as 表时间，“一…就…” I will phone you as soon as I come back.
7.because 表原因，“因为” I have to stay in bed because I am ill.
8.before 表时间，“在…之前“ You should think more before you do it.
9.even if/ even though 表让步，“即使” You should try again even if you failed.
10.hardly…when 表时间，“（刚）一…就” Hardly I entered the gate when the bell rang.
11.if “假如”，引导条件状语从句 What should I do net if the rain doesn’t stop?
“是否”，引导宾语从句 I don’t know if he comes back or not.
12.In case 表目的，“以防，以免” You should be more careful in case there is a fire.
13.In order that 表目的，“为了，以便” We study hard in order that we can pass the exam.
14.no matter +疑问词 表让步，“无论，不管”
No matter what you do, you should try your best.
15.no sooner…than 表时间，“刚一…就…”
No sooner had I come home than it began to rain.
16.now that 表原因，“既然，因为，由于”
Now that you are on duty,you should clean the classroom.
17.once 表时间，“一旦…” Once you promise , you should do it.
1.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.
2.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.
3.so that 表目的“以便” Speak loud so that everybody can hear clearly.
表结果“如此,以致” He got up so late that he missed the bus.
4.than 表示比较，“比” Things were worse than we thought.
5.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.
6.unless 表条件，“除非，如果不” I will go to the zoo unless it rains.
7.Until/till 表时间，“直到…为止” I’ll wait till he comes back.
8.when 表时间，“当…时“ When they got there, the train has left.
9.whether “是否”引导名词性从句 Whether he can some to see us is unknown.
表让步，“不管/无论、是否” Whether she is ill or well, she is always happy.
10.while 表时间，“当…时” While he was in Beijing, he visited the Great Wall.
表让步，“尽管，既然” While I find the problems very difficult, I don’t think them insoluble.
11.whenever 表时间，“无论什么时候” Whenever you meet any trouble, tell me at once.