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2. To understand the usage of some words through the exercises.
3. To understand the usage of some words through the exercises.
Teaching procedures:
Task One: Fill in the blanks.
Task Two ：Explain some important language points
1. Dr Ma, please tell us something about blindness.
blindness为名词，意思是“失明”,其形容词形式为blind“失明的”。
2. prevent: vt. 阻止, 预防
vt. prevent sb. from doing sth.阻止某人做某事
stop… from doing sth. keep…from doing sth.
keep 结构中的from 不可以省略, 其余结构中的from 可以省略.
Prevention is better than cure. 预防总比治愈强
3. On the plane, volunteer doctors perform operations.
operate vi. 做手术,operate on 某人或某身体部位
4. Many of our patients cant’t afford to go to hospital,, so we have to go to them.
(1) patient 为名词，意为“病人”，
（2）afford 为动词，意为“买得起,能做”，常与情态动词can或者can’t, could, be able to 连用。
（3）go to hospital意为“去看病”。同义短语为go to see a doctor。
5. Also, local doctors and nurses are invited on board to learn about eye operations.
On board 意为“在飞机（船、火车）上”。
6. By training them, we hope to help more people.
“by+动名词”，意为“通过某种方式”。对于这样的短语应用 “how”提问。
7. I’m proud that I can help so many people.
proud: adj. 骄傲的, 自高自大的, 自豪的
be proud. of sb.(sth.) / to do sth.
be proud that… 对…感到得意或自豪.
pride n. 骄傲 take pride in…为…而骄傲
He takes pride in his collection of stamps. =He is proud of his collection of stamps.
8. Modern medicine is developing quickly and now most eye problems and disease can be treated and cured.
(1) medicine 作为名词，意为“医学，药”，为不可数名词，其形容词为medical,