1. Unit 1 Great scientists
Using Language

2. Nicolaus Copernicus

3. Nicolas Copernicus Birth: February 19, 1473 Death: May 24, 1543
Place of Birth: Toruń, Poland
Career:
Studied mathematics at Kraków Academy
1496 Went to Italy to study astronomy and law at the University of Bologna

4. Nicolas Copernicus
1497 Began observations of the Sun, Moon, and planets
1514 Wrote Commentariolus, an outline of his astronomical ideas, but did not circulate it widely
1543 Published De Revolutionibus Orbium Coelestium (On the Revolutions of the Celestial)

5. We all know something about Copernicus
We all know something about Copernicus. He was one of the first scientists to use mathematical observations to collect information. He believed the sun is the center of the universe and the earth and other planets goes around it.

6. Fast reading
Read the passage quickly, and tell whether the following statements are true or false.
At Copernicus’ time, Christian Church
was in charge of many western
countries. T

7. 2. Copernicus noticed that observed from the earth, some planets appears in front of or behind the earth. F
3. Copernicus didn’t show his new theory
to his friends until he completed it.
4. His friends were not interested in his
ideas. T F

8. 5. Since he was not afraid of being attacked by the Church, Copernicus published his book as soon as he finished working on it.
6. Newton, Einstein, and Hawking are all scientists who made contribution to the study of the universe. F T

10. Before Copernicus’ theory Showing Copernicus’ theory
Careful reading
Read the passage carefully and try to draw the two theories of the universe.
Before Copernicus’ theory
Showing Copernicus’ theory
A diagram showing the solar system with the Earth at its centre
A diagram showing the solar system with the Sun at its centre

12. Analyze the following picture carefully and try to explain how a loop is formed.

14. 1). Mao Zedong is the great leader of the Chinese R_________.
Language points
1. Fill in the blankets with proper words.
1). Mao Zedong is the great leader of the Chinese R_________.
evolution
2). The Invention of the computer caused a r_________ in our way of living.
evolution

15. 3). Sun Zhongsan is a great r___________ leader.
4).Yuan Longping created a r___________ new way of growing rice.
evolutionary
evolutionary

16. 2. make sense
1) to have a clear meaning
No matter how I tried to read it, the sentence didn’t make sense.
2) to be wise course of action
It makes sense to take care of your health.

17. 3. spin
spun
spun
spinning
a spinning coin
spin a top
a spinning wheel

18. We span the coin to see who would have first turn.
I spun around to see who had spoken.

19. 4. enthusiastic: be interested in
She’s very ______________________ singing.
We explain our plan, and he is very ___________.
enthusiastic about / over
enthusiastic

20. enthusiastic enthusiasm enthusiastically
She shows boundless __________ for the work.
She greeted him _____________ with a kiss.
She is very __________ about Eastern music.
enthusiasm
enthusiastically
enthusiastic

21. 5. cautious: careful to avoid risk
be cautious about / of sb. / sth.
cautiously
银行在贷款方面十分慎重。
The bank is very cautious about lending money.

22. 我的爸爸是一位非常谨慎的司机。
My father is a very cautious driver.
警卫告戒我要当心陌生人。
The guard warned me to be cautious about strangers.

23. cautious; curious
a. I’ve always been very _______ about giving my address to strangers.
b. He is very _______ about the origin of mankind.
cautious
curious

24. 6. reject: refuse to accept
If you don’t like Tom, you may r_____ his gift.
If you don’t think the suggestion is suitable for you, you may r____ it.
eject
eject

25. an offer
a possibility
a theory
reject
candidate
applicant
refuse to accept
rejected

26. enthusiastic cautious reject
请选用方框内所给词的适当形式填空。
Tom dreamed of joining the army when he was very young. He was very _______ and made a plan to study hard. He was __________ about the plan. But when he was about 16, he got a bad
backward complete
enthusiastic cautious reject
cautious
enthusiastic

27. enthusiastic cautious reject
backward complete
enthusiastic cautious reject
illness. Because of this, he was _________ in his studies and also he was _________ by the army. He was so sad that he almost fainted at the news. His parents suggested to him that he have other choices. Then he followed his parents’
backward
rejected

28. enthusiastic cautious reject
backward complete
enthusiastic cautious reject
advice and decided to go to the west to help those poor students after he __________ his studies in the college.
completed

29. 用适当的介词填空。
1. The quarrel led __ the fighting between the two villagers.
2. He is always positive _____ trying new ideas.
3. His father is very strict ____ him and strict __ his studies too. to
about
with in

30. 4. We should base our theory __ fact.
5. The photo calls up the memory of his childhood __ times.
6. According to my point __ view, we should stick to our plan. on at of

31. Conclusion
Euler’s theory (一笔画)
可以一笔画只有两种情况：
1. 没有奇数顶点。
2. 只有两个奇数顶点。

32. Homework
1. Search on the Internet for more information about Copernicus and Euler.
2. Prepare for the language study, reviewing the words and expressions in this unit.