4. 1. Many of our patients can’t afford to go to hospitals, so we have to go to them. 句中的 afford 意思是 “ 买得起 ; ( 有时间 ) 做 ” 通常与 can, could, be able to 连用， 多用于否定句和疑问句。如：

5. Can we afford a car? 我们买得起新车吗？ We cannot afford a new house. 我们买不起新房子。

6. 2. Also, local doctors and nurses are invited on board to learn about eye operations. on board 在飞机（船、火车）上 e.g. Have the passengers gone on board yet? 乘客们登机了吗？

7. 3. By training them, we hope to help more people. 句中的 by 是介词，意思是 “ 通过某种方 法、手段 ” ，后接名词或者动词 -ing 形 式。如： You can learn more about the news by reading today’s newspaper. 看看今天的报纸，你就能对这条信息 有更多的了解。

8. 4. I’m proud to help people see again and improve their lives. proud adj. 自豪的, 骄傲的 e.g. They were proud of their success. 他们为自己的成功而骄傲。

9. 5. Modern medicine is developing quickly and now most eye problems and diseases can be treated and cured. develop vi.&vt. 发展；加强 e.g. Modern music was first developed in Italy. 现代音乐最初是在意大利发展 起来的。

10. treat vt. 治疗；处理 e.g. Doctors treated her with aspirin. 医生用阿司匹林为她治疗。

11. 6. But more money is needed to carry on with our work. 短语 carry on with something 表示 “ 继 续干某事 ; 坚持做某事 ” 。如： Please carry on with the work while I was away. 我不在时请接着干。

12. I. Fill in the blanks. 1. 80 percent of the cases of _________ (blind) can be cured or prevented. 2. At present, Mr. Li is in hospital receiving _________ (medicine) treatment. 3. Tom is searching the Internet for ______ (far) information. 4. Dr. Ma does five __________ (operate) every day. blindness medical further operations

13. 5. The camera was one of the greatest ________ (invent) in the 19th century. 6. Lucy didn’t go to school because of her _______ (ill) yesterday. 7. They’re all nurses, _______ (most) from the poor countries. 8. The children in poor areas hope to receive good _________ (educate). inventions illness mostly education

14. 1. 我们都应该尽力帮助学习上有困难的 同学。 2. 能当上这次英语艺术节的主持人我感 到很自豪。 II. Translation. We should try our best to help our classmates who have difficulties in study. I’m proud to be the host of the English Festival.

15. 3. 他的病如此严重以至于没人能治好他。 4. 孩子们对李老师充满了感激，因为他 教了他们知识。 His illness is so serious that nobody can cure him. The children are very grateful to Mr. Li, because he teaches them knowledge.

16. Zhang Hua is a Grade 9 student of Sunshine Secondary School. His family is r___. He u___ to spend most of his p_____ money buying snacks and playing computer games. He didn’t work s__ hard at school. He was a_____ of doing his homework. 综合探究 sed ocket o fraid ich

17. Last summer, he went to a p____ village. There he saw many children who weren’t able to go to school because their families were too poor. oor

18. That experience a______ Zhang Hua a lot. Now Zhang Hua works very hard at school and he d_____ most of his pocket money to UNICEF and he takes an active part in many c_____ activities to help people in need. He thinks it important to t____ his best to help people in need. ffected onates harity ry

19. 1. Remember the language points in this lesson. 2. Preview the next lesson.