内容正文:
Unit 3
The world of science
starting out
Let’s enjoy a short video.
Harry threw the cloak around his shoulders… Harry looked down at his feet, but they were gone.
Harry Potter and the Philosopher’s Stone
Has it become a reality now?
invisibility cloak
Has it become a reality now?
new energy vehicles
Presently I am going to press the lever(杠杆), and off the machine will go. It will vanish(消失), pass into future time, and disappear.
The Time Machine
Has it become a reality now?
Time Machine
A faint blue light shot across it, darkening to purple, and presently she could see the image(图像) of her son, who lived on the other side of the earth, and he could see her.
The Machine Stops
Has it become a reality now?
visual telephone
Instead of being printed, the Earth chronicle is every morning spoken to subscribers订阅者, who, in interesting conversations with reporters, statesmen, and scientists, learn the news of the day.
In the Year 2889
Has it become a reality now?
Video news
Find the inventions mentioned in the video.
Temperature-controlled clothing
Shrinking缩小 pill药片
Cars that can fly or go underwater.
Language translator
Treatment pill
The inventions mentioned in the video
Which one do you think will become a reality?
In order to make these become a reality, what can we do?
careers in science
physicist
mathemtician
chemist
astronomer
geographer
biologist
What famous scientists can you name in these fields?
Albert Einstein
Zu Chongzhi
Tu Youyou
Guo Shoujing (1231-1316) was a famous Chinese 1__________ of the Yuan Dynasty. He invented twelve new instruments to study stars and planets. He also developed a calendar which is as accurate as the Gregorian calendar. A mountain on the Moon and a minor planet are named after him.
astronomer
British 3________ Charles Darwin (1809-1882) is best known for his work On the Origin of Species, in which he explains changes in species due to natural selection. His ideas deeply influence our understanding of the relationshi