高二英語Unit6 Amazing achievements教案
a. stands a great castle b. a great castle stands
c. stand a great castle d. a great castle stand
(dabda bcdda)
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說明：
在學完全部課文的基礎上，適當的，有趣的科學知識拓展希望可以加深學生對科學的熱情和探究未知的鉆研精神。這個部分可以通過競賽的形式完成，在了解知識的同時培養學生的競爭意識和合作精神。
1. which three chinese physics scientists share the same family name? (qian xueshen, qian sanqiang, qian weichang)
2. being with a beautiful girl for two hours seems to be only two minutes; but sitting on a hot stove for two minutes seems to be two hours. who said this? （einstein--- theory of relativity）
3. what’s the definition of science of physics (mass and matter)?
4. what do letters ‘e’, ‘m’ and ‘c’ in this formula e=mc2 stand for ? (energy, mass, constant)
5. what are the four great inventions of ancient china? (papermaking, commercial printing, gunpowder, and the compass.)
6. a russian chemist named dmitry mendeleev came up with a way to organize the elements that is still used by scientists today. what is it? (the periodic table)
7. please use what you learned to explain the following phenomenon?
why does the apple fall down not go up? (gravity)
8. at a business meeting each person shook hands with every other person exactly once. if there were fifteen hand-shakes, can you tell how many people attended the meeting? (six)