资源简介

(共22张PPT)
Unit 4　
Scientists who changed the world
Section 1　Welcome to the unit & Reading
1．Learn about two scientists after watching the video and describe the similarities and differences between the two scientists；
2．Get to know how to read a news report, then try to analyze and understand the outline and key information of a news report；
3．Write a news report about a scientist.
1．Describe the similarities and differences between the two scientists.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Activity 1
Lead–in
话题导入
They both devoted themselves to scientific research and made great achievements.
Yuan Longping was Chinese, whose research field was agriculture. In the 1970s, he succeeded in developing the first hybrid rice.
Stephen Hawking was British. He made great contributions to the field of general relativity varieties, proposed the theory of Hawking radiation, and wrote A Brief History of Time which stayed on a bestseller list for 237 weeks.
2．What else do you know about the two scientists in the video
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Yuan Longping has an asteroid(小行星) named after him for his achievement in developing hybrid rice. The asteroid is called“Yuan Longping star”．
Stephen Hawking fulfilled his lifelong dream of experiencing zero gravity, even though he was wheelchair–bound. His dream came true when he flew in a special zero gravity airplane in 2007.
3．What other great scientists do you know of Why did they leave such a deep impression on you
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
I know Qian Xuesen and Nan Rendong.
Qian, known as the “Father of China’s Aerospace(航空航天技术)”, gave up a comfortable life in the US and overcame great difficulties to return to China. He led the research and development of China’s first missiles and man–made satellite, laying a solid foundation for the country’s aerospace and national defense industries.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Nan Rendong spent more than 20 years building FAST, the world’s largest single–aperture(单孔径) radio telescope. He overcame problems like harsh site selection and technical shortages.
They impress me deeply because they linked their life’s work to the country’s strength and human progress, showing amazing perseverance and selfless dedication.
4．What do you think are the motivations of scientists
______________________________________________________________________________________________________________________________________________________________________________________________
They are motivated by a strong desire to help humanity. They pursue curiosity about nature, aim to solve big problems (like hunger or cosmic mysteries), and have a deep love for their fields, devoting lives to making the world better.
Ⅰ Choose the best answers to the following questions according to the text.
1．What is the news report mainly about
A．Chinese scientist Tu Youyou’s career.
B．Chinese scientist Tu Youyou and her team.
C．Chinese scientist Tu Youyou’s lecture.
D．Chinese scientist Tu Youyou and the discovery of qinghaosu.
【答案】 D
Activity 2
First–reading—Read for the main idea and structure
一读，读大意和结构
2．Why did Tu Youyou and her team lack qinghao extract for large trials
A．Because research resources were in short supply.
B．Because Tu and her team lacked experience.
C．Because there was no good laboratory for experimenting.
D．Because they had no support from the government and their families.
【答案】 A
3．What can we learn about Tu Youyou from paragraph 6
A．Tu encouraged scientists to further explore traditional Chinese medicine.
B．Tu did not have sufficient data to start trials on patients.
C．Tu doesn’t continue to conduct research today.
D．Tu made traditional Chinese medicine spread.
【答案】 A
Ⅱ Finish the timeline about Tu Youyou’s personal experiences.
1930 She was born in Ningbo, Zhejiang Province.
1951–1955 1．_______________________________________
1969 2．__________________________________________________________
1971 3．_________________________________________________________________
1972 4．_____________________________________________
2015 5．_______________________
She studied medicine at university in Beijing.
She became head of a team that intended to find a cure for malaria.
She succeeded in making qinghao extract that could treat malaria in mice.
She successfully discovered qinghaosu with her team.
She won the Nobel Prize.
Ⅰ Read the text and fill in the blanks with the correct information from it.
1．Tu Youyou became the first female scientist of the People’s Republic of China to receive a Nobel Prize in _______．
2．She studied medicine at university in Beijing between ______ and _______．
Activity 3
Second–reading—Read for details
二读，读细节
2015
1951
1955
3．In 1969, Tu became head of a team to find a cure for ________．
4．She succeeded in making qinghao extract that could treat malaria in mice on __ _______ 1971.
5．Qinghaosu has benefited about ______ million malaria patients.
malaria
4 October
200
Ⅱ Read the text carefully and complete the table below：
Referring to ancient Chinese medicine books and redesigned experiments.
Difficulties Solutions
Failing to produce promising results from extracts. 1．_________________________________________________________________
Hard to produce enough extract for large trials due to limited resources. 2．____________________________________________________________________
Insufficient safety data for patient trials. 3．____________________________________________
Using household water containers to extract herbs and working day and night.
Volunteering to test the extract on themselves first.
1．Where is the lead of this news report and what information can you get from the lead
_______________________________________________________________________________________________________________________________________________
2．What’s the author’s tone when writing the text
______
Activity 4
Third–reading—Read for further thinking
三读，深入思考
The first sentence of the news report is its lead. It tells us four key pieces of information：who(Tu), what(won a Nobel Prize), why she was honoured and why this matters.
Proud.
3．What good qualities does Tu Youyou have
_______________________________________
4．How do you understand Tu Youyou’s major led to her success
______________________________________________________________________________________________________________________________
She is persevering, hard–working and devoted.
If she didn’t major in medicine, she couldn’t have a broad knowledge of both traditional Chinese medicine and Western medicine to discover qinghaosu.
Because of her contribution to the fight against malaria, Tu Youyou has become the first female scientist of the People’s Republic of China 1．_____________(receive) a Nobel Prize.
Born in 1930, in Ningbo, Zhejiang Province, Tu 2．_________(study) medicine at university in Beijing and acquired a broad knowledge of both traditional Chinese medicine and Western medicine. In 1969 she became head of a team that intended to find a cure 3．______ malaria.
Activity 5
Summary
课文概要
to receive
studied
for
4．___________(inspire) by an over 1,600–year–old text about preparing qinghao extract with cold water, she tried extracting the herb at a low temperature in order not to damage its 5．____________(effect) part. She finally succeeded in making qinghao extract that could treat malaria in mice. 6．________, the trials on patients were likely to 7．____________ (postpone) because they did not have sufficient safety data. To speed up the process and ensure its 8．_________(safe), Tu and her team volunteered to test qinghao extract on themselves first.
Inspired
effective
However
be postponed
safety
The efforts of Tu and her team finally paid off. In November 1972, they successfully discovered qinghaosu—the most effective part of 9．____ qinghao extract. 10．____ a key part of many malaria medicines, qinghaosu has since benefited about 200 million malaria patients. Tu encouraged scientists to further explore the treasure house of traditional Chinese medicine and raise it to a higher level.
the
As
Finish B1 on page 47 of the textbook.

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