3 . 选择并使用所给英语单词的正确形式完成句子，有两个单词为多余词。

propose   volunteer   contribute   fortunate   secure     responsibility     argue

1. These women have made an important _____________ to the field of economics.
2. Mike is __________________ for designing the entire project.
3. Now that we’ve heard all the ___________for and against the proposal, let’s vote (投票) on it.
4. I went to Tibet and stayed there for one year, doing ___________work.
5. When it comes to the __________in schools, we have to take it seriously.

4 . 根据句子内容，从每组的选项中选出能匹配句子中划线部分意义的选项。选项中有两项为多余选项。

A. a film, music, ect. used to interest and amuse people B. a very strong feeling of love, hatred, anger, enthusiasm, etc. C. the act of giving or showing sth., especially a new product or idea, or a piece of work, to sb.           D. to make sb. want to do or create sth.        E. an organization that collects money to help people who are poor, sick etc. or to do work that is useful to society F. to say or do sth. to show that you disagree with sth., especially publicly G. something that you give, especially money or help, or do together with other people

1. A sports role is a sportsperson who inspires other people in a certain way.
2. I admire Edison a lot because he made a great contribution to the world.
3. The head teacher will now make a presentation to the winners of the competition.
4. This season’s entertainments include five new plays and several concerts.
5. They tried to raise money for charity.

6 . The scientist is respected by many people around the world for his ____ to children’s medicine.

A．response

B．mission

C．strategy

D．contribution