3)I like tea while she likes coffee.
III. as (一边...一边,随着） 1)As they were picking tea,the girls were
singing happily. 2) She sang as she worked.
IV. Before
the doctor. 2)Since you do not understand ,I will
explain again.
III.as 1)As she was late for class,she had to say sorry. 2)As Jane was the oldest in this family, she had to look after the others.
2)Because he was ill,he didn’t go to school. He was ill ,so he didn’t go to school. Being ill, he didn’t go to school.
II.since 1)Since you are ill,you’d better go to see
Having finished his work,he left here.
VI. since (from the time that) 1)I have known him ever since he was a boy. 2)I have worked here since I graduated from
soon as) she appeared on the stage.
X. by the time 1)By the time he arrived,the train had already
gone. 2)By the time he comes,we will already have left.
On getting home,she began to cook.
*IX. every time,each time,the moment 1)Every time/each time I catch a cold,I
have pain in my back. 2)There was an applause the moment (as
Exercises: 1.They walked out of the room ___the meeting was over.
2.They must stay in school ____they are sixteen.
3.Take the medicine ____you go to bed.
7.We should strike ____the iron is hot.
2.Adverbial Clauses of Reason(原因状语从句）
because, since, as, now that, for
I. because
1)The ship changed its course because there was a storm. The ship changed its course because of the storm.
2)Until she told me, I had no idea of what they had said.
3)It is not until his mother comes home that he will go to bed.(强调结构）
VIII .as soon as 1)As soon as she got home,she began to cook.
4.I knew nothing about it _______he told me.
5.It is more than five years ____we started to learn English.
6._____he talked on,he got more and more excited.
1)It won’t be long before he finishes his writing.
V. After 1)After he (had) finished his work,he left there.
He (had) finished his work before he left here. After finishing his work,he left here.
Adverbial Clauses
1.Adverbial Clauses of Time:（时间状语从句） when, while, as, before, after, since, until, as soon as, every time, each time, the moment, was walking in the street, he met Tim. (分词短语）
While walking in the street,he met Tim. Walking in the street ,he met Tom.
2)He learned to speak English while he was here.
I.when
1)When he comes here tomorrow,I will call you. (at the time that)
2)Henry is in charge of the office when Mr.Smith is away. (during the time that)
the university. *3)It is (has been)two years since he came here.
VII. until (till) (up to the time that) 1)He will not go to bed until(till) his
mother comes.