资源简介

(共21张PPT)
Unit 4 Scientists who changed the world
Welcome to the unit
& Reading (I)
Lead-in
What do we refer to when talking about “science”
“Science”
Who do we refer to when talking about “scientists”
Lead-in
Einstein & Hawking
Yuan Longping & Wu Mengchao
Lead-in
The scientist is motivated primarily by curiosity and a desire for truth.
— Irving Langmuir
Welcome to the unit
Yuan Longping
● In 1953, he ________________ South-west Agricultural College.
● In the 1970s, he ______ ___ _ _ the first hybrid rice varieties.
Stephen Hawking
● He ___________ __ the field of general relativity.
● In 1988, A Brief History of Time was published and stayed on a bestseller list for ___________.
Scientists who changed the world
graduated from
succeeded in developing
made great contributions to
237 weeks
Welcome to the unit
Welcome to the unit
1. What else do you know about two scientists in the video
Yuan Longping has an asteroid named after him. In 1999, the asteroid project team who discovered it decided to honour this great man for his achievement in developing hybrid rice. The asteroid is called “Yuan Longping Star”.
Welcome to the unit
Steven 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.
Pre-reading
What do you know about the Nobel Prize
The Nobel Prize is not a single prize, but five separate prizes that, according to Alfred Nobel‘s will of 1895, are awarded to “those who, during the preceding year, have conferred the greatest benefit to humankind”.
Nobel Prizes are awarded in the fields of Physics, Chemistry, Physiology or Medicine, Literature, and Peace Nobel Prizes are widely regarded as the most prestigious awards available in their respective fields.
Mo Yan winning the Nobel Literature Prize
Fast reading
Read for the lead of the news report.
Tu Youyou has become the first female scientist of the People’s Republic of China to receive a Nobel Prize, awarded for her contribution to the fight against malaria, one of the deadliest diseases in human history. Thanks to her discovery of qinghaosu, malaria patients all over the world now have a greatly increased chance of survival.
What is the main idea of the lead
What should be included in a lead
What should be provided in the rest part
Details and background information.
Para. 1: Tu Youyou won a Nobel Prize in 2015 for her discovery of qinghaosu.
Part 1
The lead
Part 2
More detailed information about the event
Para. 2: _____________________________________
___________________________________________
___________
Paras. 3-5: _______________________________
________________________________________
_____________
Chinese scientist wins 2015 Nobel Prize
Para. 6: ________________________________
The headline
Part 3
Background or supporting information
Tu Youyou and her team’s efforts finally paid off.
Tu Youyou acquired a broad knowledge of both traditional Chinese medicine and Western medicine.
Tu Youyou and her team solved a lot of problems before they successfully discovered qinghaosu.
Fast reading
Read for the structure.
Read for specific information.
Detailed reading
Problems Solutions
The extracts failed to produce any promising results.
Tu and her team could not produce enough qinghaosu extract because research resources were limited.
Tu and her team did not have sufficient safety data to start trials on patients.
Tu Youyou referred to the ancient books of traditional Chinese medicine again, redesigned the experiments and tried extracting the qinghao herb at a low temperature in order not to damage its effective part.
Tu Youyou and her team managed to find solutions to the problem, e.g. using household water containers instead of research equipment.
Tu Youyou and her team volunteered to test the qinghao extract on themselves.
Can you find the transitional sentences used in this news report and analyze their functions one by one
Transitional sentence:
Tu’s education was soon to prove very useful. (Line 13)
However, it was hard to produce enough qinghao extract for large trials because research resources were limited.(Line 23)
Even with large amounts of qinghao extract produced, however, they still faced another problem. (Line 28)
In-depth reading
Read for the transitional sentences.
Function:
It moves from Tu’s educational background (Para. 2) to “Tu’s success in making qinghao extract”(Para. 3)
It moves from Tu’s success in making qinghao extract (Para. 3) to “the process of making enough qinghao extract for large trials”(Para. 4)
It moves from Tu’s success in “miking enough qinghao extract for large trials”(para. 4) to the new problem Tu’s team was facing—no sufficient safety data(Para. 5).
In-depth reading
Read for the transitional sentences.
Tu Youyou has become the first female scientist of the People’s Republic of China to receive a Nobel Prize, awarded for her contribution to the fight against malaria, one of the deadliest diseases in human history.
In November 1972, through trial and error, they successfully discovered qinghaosu—the most effective part of the qinghao extract.
In-depth reading
Sentences using noun phrases to explain terms
The doctor asked me to have a good rest and take some aspirin, a medicine often used to treat pain and fever.
After surgery, the man was sent to ICU, a department in a hospital that provides specialized treatment or care.
In-depth reading
Finish B3 on P47
1. Finish Exercise B1 on P47.
2. Write a news report about another scientist.
Homework

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