2. Unit 1 Making a difference

3. Task 1 Warming up  There are many outstanding scientists in the world, who made great contribution to society and science?

4. Scientists Contributions Maria CurieRadium/polonium Zhang Heng Seismograph Charles DarwinThe Theory of Evolution Thomas Alva EdisonThe light bulb Albert EinsteinThe Theory of Relativity

5. Who are they? Albert Einstein Madame Curie Thomas Alva Edison

6. Whom do you think these quotes are from and do you know what they mean? 1.Genius is one percent inspiration and ninety-nine percent perspiration. 2.Imagination is more important than knowledge. 3.Nothing in the world is to be feared; it is only to be understood.

7. “Genius is one percent inspiration and ninety-nine percent perspiration.” Thomas Alva Edison “ 天才就是百分之九十九的汗水加上百分 之一的灵感.”

8. “Imagination is more important than knowledge.” Albert Einstein “ 想象力比知识更重要.”

9. “Nothing in the world is to be feared; it is only to be understood.” Maria Curie “ 生活中没有什么可怕的东西, 只需要理解 的东西.”

10. It takes a very unusual mind to undertake the analysis of the obvious ——Alfred North Whitehead 分析明显存在的事物需要非凡的头脑。

11. You cannot teach a man anything; you can only help him find it within himself. ——Galileo Galilei 你不可能把一切都教给一个人，你只能帮助 他在他认知的范围内去发现和了解事物。

12. Task 2 Speaking

13. Branches of science Why? BiologyEssential to protecting the ecological balance and environment; people can’t live without living things and medicine. ChemistryIs the key to the progress of human being; it is chemical reaction that produce many new things. PhysicsWidely used in many fields, such as medicine, industry and agriculture. MathsYou can’t learn physics or chemistry well without a good knowledge of maths. It is a tool in science and engineering. Computer science It is now an indispensable tool in many fields. It can settle all kinds of problems at a high speed and can help people work easily.

14. Language points (warming up/listening/speaking)

15. 1. Genius is one percent inspiration and ninety-nine percent perspiration. 1) genius --[U] great and rare powers of thought, skill or imagination. 天赋 --[C] a person of very great ability or very high intelligence 天才人物；才子；天才． e.g. Wuthering Heights is one of the most extraordinary books that human genius has ever produced.

16. 《呼啸山庄》是人的天赋所创造出的最非凡的作品 之一。 she has a genius for music. have a genius for… 在某方面有天赋 2 ） inspiration (n.) inspire (V.) e.g. She was an inspiration to all who knew her. These events provided the inspiration for her first novel. 鼓舞 灵感

17. 2. Some things need to be believed to be seen. We see only what we know. 有些事情需要先相信然后才能看到。我们 只看到我们了解的事物。 sth. needs to be done= sth. needs doing 考例： This watch needs ____, for it loses five minutes per day. A. to repair B. be repaired C. repairing D. being repaired

18. 3. It takes a very unusual mind to undertake the analysis of the obvious. 1) It take + n. + to do sth. 做某事需要 …… e.g. It will take a lot of courage to tell the truth. It takes about thirty minutes to walk from here to the station. It took him a lot of money to buy her a fur coat. （花费时间） ( 花费钱 )

19. 考例： 1.It ___ a lot of nerve to do a thing like that. A. needs B. takes C. spends D. A or B 2.Some passengers complain that it usually ___ so long to fill in travel insurance documents. A. costs B. takes C. spends D. spares

20. 2) undertake (undertook/undertaken) ① We can undertake the work for the time being. ② He undertook the leadership of the team. ③ He undertook to pay the money back within six months. undertake 作 “ 许诺，保证 ” 讲时，其后不 接名词或代词作宾语。 着手做 担负起，承担 许诺；保证

21. 考例： They have ____ their support whenever we need it. A. promised B. taken C. given D. undertaken

22. 4.You cannot teach a man anything; you can only help him find it within himself. Nothing in the world is to be feared… only understood. 1) help sb (to) do sth. We all helped him_____ the application form. A. with filling out B. to filling out C. in filling out D. by filling out

23. 2) 句中的 to be feared 是不定式作表语, 此处采 用了 be to do 的结构, 表示 “ 应该，必须 ” 之意 e.g. No one is to leave this building. The form is to be filled in and returned within three weeks. be to do 也可表计划或安排； 有时可表示 “ 可能性 ” e.g. Their daughter is to be married soon. No a sound is to be heard. 表计划 表可能性

24. 考例： In such dry weather, the flowers will have to be watered if they_____. A. have survived B. are to survive C. would survive D. will survive 此处考查条件句中谓语动词的形式，可明 显排除 C ， D 两项， A 项可用于条件句，但他 应发生在谓语动词的动作之前。 be to do 可 用于条件句中表 “ 想要（如何） ”

25. 5. This great mind was on fire for… 这个伟大的有才智的人热衷于 …… (be) on fire 热衷的；兴奋的（ +for ） 燃烧着的（ = burning ） e.g. As a child, he was on fire for drawing something freely. The house is on fire.

26. 6.Each group member represents a branch of science. e.g. Economics is a branch of science. He was hanging from the branch. The river has a lot of branches. 部门，分支机构（学科的）分科 ( 树 ) 枝，枝状物 支流，支脉

27. 7. You are going to debate each other to see which branch of science is the most important and useful for society. 1) v. debate sth. (with sb.) debate wh- + to do sth./clause debate on sth. e.g. ① We must debate the question with the rest of the members. ② They were debating whether to go to the cinema or to watch TV at home. ③ We debated for over an hour on the advantages and the disadvantages of the computer.

28. 2)n. 讨论, 辩论 e.g. After much debate, he was chosen captain of the team. 考例 : The two sides debated ____ each other ____ who was the better for a whole day. A. to; to B. with; about C. over; on D. between; in