be made of/ be made from/ be made in/ be made by

e.g. These books are made from wood.

　　The desk is made of wood.

　　All the cars are made in China.

The model plane will be made by his son.

9. consist of 由...组成， 由...构成(=to be formed from two or more things or people)

(=be made up of) 不用被动语态

e.g. The buffet consisted of several different Indian dishes.

consist mainly/largely/primarily of sb. /sth.

e.g. The audience consisted mainly of teenagers.

consist entirely/solely of sb./sth.

e.g. The area does not consist entirely of rich people, despite popular belief. 10. have an impact on

10. have an impact on/upon... 对...有影响，对... 有作用

(=inluence, affect, have an effect/influence on)

e.g. The change in leadership will have a huge impact on government policy.

11. depend on/upon sb./sth.

1) 取决于..., 视...而定

e.g. We might need more cars, depending on the number of people gathering here.

depend on how/what/whether etc

e.g. Choosing the right bike depends on what you want to use it for.

2)依靠，信赖，需要，依靠（提供资金，帮助） （=if something depends on something else, it is directly affected or decided by that thing）

e.g. The length of time spent exercising depends on the sport you are training for.

The country depends heavily on its tourist trade

depend on sb./sth. for sth.

e.g Many women have to depend on their husbands for their state pension.

depend on sb./sth. to do

e.g.I'm depending on you to tell me everything.

depend on sb. doing something

e.g.We're depending on him finishing the job by Friday.

3)口语中（used to say that you cannot give a definite answer to something because your answer will be affected by something else）

e.g. 'How long are you staying?' 'I don't know; it depends.'

12. promise

1) vt. /vi.

(1) [(=to tell someone that you will definitely do or provide something or that something will happen)

promise sth. e.g. Last night the headmaster promised a full investigation.

promise to do sth. e.g. She's promised to do all she can to help.

promise (that) e.g. Hurry up - we promised we wouldn't be late.

promise sb. (that) e.g. You promised me the car would be ready on Monday.

promise sth. to sb. e.g. I've promised that book to Ian, I'm afraid.

promise somebody something e.g. The company promised us a bonus this year.