3. A　 关键词：They need someone who can teach them foreign languages; at night; volunteer work; know about China。

2. F　 关键词：in great need of teacher; knowledge; education。

1. C　 关键词：she doesn’t know which bus to take; she does not know words; they could not read。

5. Lisa: I burst into tears when I saw those children in a TV programme. What a sight. They have only bone and skin left. What's worse, every day the children are dying because of lack of food. I realized how lucky I am with enough food and a good chance to get education. The summer vacation is coming and I hope I can do something for them.

[答案]　 求助者--提供帮助的人

4. Tim: Since I myself have overcome a lot of difficulties in my life, I understand young people's problems and I know how to listen patiently to others and offer some advice. I'm working now in the daytime so I can only spend two to three hours a day at night to help others.

3. Susan: I'm a girl from England and has studied French for years. I'm here in Beijing University studying Chinese. I like China as it is full of mysteries. So I hope the voluntary work will help me to get in touch with Chinese people and get to know about China. Although my study is busy, I can be free at night and at the weekends.

2. Ben: After graduation, I don't want to apply for a job at once Instead, I plan to spare one year to help those who need help most and try my best to improve their lives. You know, education is essential to poverty relief and at the same time I'll get valuable experience for my future career.

1. Stephen: Last summer I went through a training program and became a literacy volunteer. When I began to discover what other people's lives were like because they could not read, I realized the true importance of reading.

9．one，one of+名词复数表“……之一”：