What she loves best about her experience, she says, is the magical moment when students understand a chemical process or ask her for more exercises.

　　More than 8,000 Peace Corps volunteers are currently serving around the world. Volunteers become part of the community where they work and live.

Welcome to the unit 　　1．Look and think.

　　参考答案：It_is_better_to_teach_a_man_to_fish_than_to_give_him_a_fish.

　　2. Answer the following questions.

　　(1) What do you think may lead to poverty?

　　答案：diseases/natural disasters/unemployment/local environment/wars/growing population/wrong policies and strategies

　　(2) What possible solutions can you find to the problem?

　　答案：provide educational training / donate food and money / provide medical care / improve environment and develop renewable energy

Fast­reading 　　Choose the best answers according to the text.

　　1．When was the concert Live Aid held?

　　A．July 13,1984. B．July 15,1985.

　　C．July 13,1985. D．June 13,1985.

　　2．Why did Bob Geldof hold such a charity concert?

　　A．Because Ethiopia suffered from serious flood.

　　B．Because many people in Ethiopia were suffering hunger.

　　C．Because he wanted to be famous.

　　D．Because he and his friends loved music very much.

　　3．What is the biggest health risk in the world?

　　A．Cancer. B．Heart disease.

　　C．Bird flu. D．Hunger.

　　4．What does the WFP stand for?

A．The World Food Programme.