英语选择性必修 第二册Unit 1 Science and Scientists说课课件ppt

The attitude of science is being practical and realistic.

—Qian Xuesen

科学的态度是实事求是。

——钱学森

Studying knowledge needs thinking again and again，which is a learning method helping me become a scientist.

—Albert Einstein

学习知识要善于思考、思考、再思考。我就是靠这个学习方法才成为科学家的。

——阿尔伯特·爱因斯坦

Imagination is more important than knowledge，for knowledge is limited while imagination embraces the entire world，pushes improvement and is the source of knowledge evolution.

—Albert Einstein

想象力比知识更重要，因为知识是有限的，而想象力包罗万象，推动着进步，并且是知识进化的源泉。

——阿尔伯特·爱因斯坦

Science is unpredictable.If I had known it，I would have found it before.

—Stephen Hawking

科学是不可预测的。如果我知道的话，我早就把它做出来了。

——斯蒂芬·霍金

Scientific conclusions are the gold with limited amount；while scientific means is the magic that can be utilized to produce endless amount of gold.

—Cai Yuanpei

科学结论，是点成的金，量终有限；科学方法，是点石的指，可以产生无穷的金。

——蔡元培

The development of science and technology will bring people much more convenience.Firstly，we can get more and more information through the Internet，broadcast and television，and we can touch the news very easily.Technology makes a great contribution to those.And if you want to go travelling，you could find the relevant travel agencies and go anywhere as you want.Owing to science，a lot of patients recover very well.Science and technology are also available to agriculture to a great extent.According to science，we can use a little room to plant more and more rice.We can eat high quality vegetables and so on.

Actually，science and technology can let us know more about the world in which we live，and help us do many things very easily.

He Zehui, a Chinese nuclear physicist, accomplished great things in physics and became an outstanding scientist.

Her family is famous for producing three famous women scientists, including her two sisters. She graduated from Tsinghua University in 1936 with a degree in physics, and then went on to study at the Technical University of Berlin, where she was the top in her class, outperforming her future husband Qian Sanqiang—China's “father of the atomic bomb”. In 1940, she earned a Ph. D. in Engineering.

The couple made great discoveries in the field of uranium fission(铀核裂变)，which drew global attention and earned them worldwide reputations, also marking a milestone in the development of China's experimental fission physics. Many Western media called the couple the “Marie Curie and Pierre Curie of China”．

As one of the pioneers in nuclear science and technology in China, Professor He contributed a great deal to nuclear physics. During the 1950s, she started the research and development of nuclear emulsions(核乳胶)in China and their research reached the advanced world level at that time. He and her research group took the lead in building China's first nuclear reactor and accelerator. She was awarded the first Award of the National Prize of Natural Sciences for making outstanding achievements in supporting the national program of nuclear weapon development.

[探索发现]

1．Find out the main idea and then think of a proper title for it.

The Chinese Marie Curie—He Zehui.

2. Find out what the focus of He Zehui is in Paragraph 2.

Her education experiences.

3. Find out the reason why He Zehui is acknowledged as “The Chinese Marie Curie”？

For her research of nuclear emulsions.