9. Therefore we can say that the nuclear family becomes more important than the extended family as the society industrializes.

句子中的therefore是一个副词，通常用来表示后面将要表述的内容是前面已经表述的内容的结果，也可以用来引导一个结论。类似的表达还有：so，consequently，as a result 等等。请看例句：

1）It rained， therefore the football match was put off. （天下雨，所以足球比赛延期了。）

2）He is too careless， as a result he failed the exam. （他太粗心，所以考试没及格。）

3）He was ill for about a month， consequently he lagged behind his classmates.

（他病了一个月，因此落在了同学后面。）

as the society industrializes随着社会的工业化。as是一个连词，表示“当…时”。请看例句：

1）As time goes on， you'll like this place better. （随着时间的推移，你会更喜欢这个地方。）

2）As he talked on he got more and more excited. （他谈着的时候，越来越兴奋。）

本课中还有：

1）The nuclear family is becoming smaller as parents want fewer children.

2）As social scientists study these two new family forms， they will be able to tell us more about the future of the nuclear family in the post-industrial age.

10. social scientists now talk of two new family forms…

本句中的talk是一个不及物动词，在表达“谈论某人（某事）”时，talk后面应该用介词of或者about.请看例句：

1）What are you talking about？ （你们在谈什么？）

2）They are talking of visiting Mr. Zhang. （他们正谈论去看张先生的事。）

3） What do you mean when you talk about culture？ （你谈论文化时指的是什么？）

Text B  The Changing American Family

短语表达

1. all over

We have friends all over the world.

I have been looking all over for him.

2. provide for

Father had to work very hard to provide food and clothes for the family.

They are trying to provide some guidance for the newcomers.

3. be expected to

Parents are expected to provide for their children.

You are expected to be here before eight.

4. take care of

The nurse took care of the old lady when her daughter was away.

The cat and the dog were taken good care of.

5. on the other hand

I don't think this proposal is workable. On one hand we don't have so much money， on the other hand time is too limited.

6. be considered to be

He is considered to be the best candidate for the job.

Father is considered to be a humorous and responsible person.

7. in addition （to）

In addition， there are some magazines on the table.

In addition to bread， we had some milk and eggs for breakfast.

8. make decision

You have to make an immediate decision about the project.

It is difficult for me to make a decision right now.

9. help with

He hoped that his brother would help him with his math.

At weekends I often help my mother with the housework.

10. in contrast

In contrast with the low grade I got， Paul got a full mark on the biology test.

Their club， in contrast， reached a membership of 2000 last year.

11. give up

You will amount to nothing if you always give up easily.

The doctor persuaded my father to give up smoking.

12. get ready for

He got up early in the morning in order to get ready for the exam.

I haven't got ready for the interview yet.

13. be busy doing

Mother is busy cooking in the kitchen.

The teacher is busy distributing the test papers.

14. in conclusion

She will say a few words about the arrangement in conclusion.

In conclusion， the old people are happy in most of the Asian countries.

15. instead of

Instead of getting the bike repaired he bought a new one.

Who is going to the meeting instead of you？