Unit 4 Scientists Who Changed the World Reading课件(共28张PPT)-2025-2026学年译林版（2020）必修第三册

(共28张PPT)
Unit4
Scientists who changed the world
Reading (I)
Learning Objectives
At the end of this section, students will be able to:
1. summarize the timeline and key information of the news report;
2. grasp the structure of the news report;
3. master the main idea of each paragraph;
4. appreciate the qualities of Tu Youyou as a scientist and the significance of her achievement.
Lead-in
Guessing Game: Who is this scientist
He graduated from South-west Agricultural College.
He was awarded “the Medal of the Republic”.
He is known as Father of Hybrid Rice.
Yuan Longping
Guessing Game: Who is this scientist
He was born in Britain.
He wrote a book called A Brief History of Time.
He suffered from paralysis.
He made great contributions to the field of general relativity.
Stephen Hawking
Guessing Game: Who is this scientist
Her name came from The Book of Songs.
Excerpt from The Book of Songs
How gaily call the deer,
While eating southernwood.
----Xu Yuanchong
“呦呦鹿鸣，食野之蒿。”
Guessing Game: Who is this scientist
Her name came from The Book of Songs.
She won the Nobel Prize for Physiology or Medicine in 2015.
She discovered the artemisinin to treat malaria.
Tu Youyou
Pre-reading
Pre-reading: Make predictions according to the picture and title.
Tips: 5W1H
Who When Where What Why How
While-reading
Fast-reading: Read for the type and structure.
1. Where would you most possibly find this passage
A. In a blog.
B. In an E-mail.
C. In a letter.
D. In a newspaper.
2. What is the structure of the text
Fast-reading: Read for the type and structure.
2. What is the structure of the text
Headline
Lead
Body
Body
Conlusion
A News Report
Fast-reading: Read again and match the main idea of each part.
Para. 1
Para. 2
Para. 3-5
Para. 6
Tu Youyou won a Nobel Prize I 2015 for discovery of qinghaosu.
Tu Youyou and her team’s efforts finally paid off.
Tu Youyou and her team solved a lot of problems before they successfully discovered qinghaosu.
Tu Youyou acquired a broad knowledge of both traditional Chinese medicine and Western medicine.
Careful-reading: Read Para.1 and get the most important information.
Tu Youyou received a Nobel Prize in 2015 for her discovery of qinghaosu.
Tu Youyou
recieving a Nobel Prize
the discovery of qinghaosu
11 December,
2015
When
who
what
Why
Careful-reading: Read Para.2-5, and complete the timeline of Tu’s experiences.
1930
1951-55
1969
1971
1972
2015
successfully discovered
qinghaosu
born in Ningbo,
Zhejiang Province
studied medicine at
university in Beijing
succeeded in making qinghao extract
that could treat malaria in mice
became head of a
team that intended
to find a cure for
malaria
won the Nobel Prize
Careful-reading: Read Para.3-5 and finish the table (P46 A2).
Problems Solutions Results
1 The extracts failed to produce any promising results. In 1971, they succeeded in making qinghao extract.
2 Tu and her team could not produce enough qinghao extract because research resources were limited.
3 Tu and her team did not have sufficient safety data to start trials on patients.
In 1972, they discovered qinghaosu.
Careful-reading: Check the answers.
Problem Solution Result
1 The extracts failed to produce any promising results. In 1971, they succeeded in making qinghao extract.
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.
Careful-reading: Check the answers.
Problem Solution Result
2 Tu and her team could not produce enough qinghao extract because research resources were limited.
Tu Youyou and her team managed to find solutions to the problem, e.g. using household water containers instead of research equipment.
They produced enough qinghaosu extract.
But their health suffered.
Careful-reading: Check the answers.
Problem Solution Result
3 Tu and her team did not have sufficient safety data to start trials on patients. In 1972, they discovered qinghaosu.
Tu Youyou and her team volunteered to test the qinghao extract on themselves.
Careful-reading: Read Para.6 and answer: What difference did Tu make
successfully discovered qinghaosu
saved about 200 million malaria patients
encouraged other scientists to explore the traditional Chinese medicine
Post-reading
Review the text.
When they failed to produce any (promise) results, Tu referred to the ancient books of traditional Chinese medicine again. (inspire) by an over 1,600-year-old text about preparing qinghao extract with cold water, Tu (design) the experiments and tried (extract) the herb at a low temperature in order not (damage) its effective part. On October 1971, after 190 failures, she succeeded in (make)qinghao extract that could treat malaria in mice.
, it was hard to produce enough qinghao extract for large trials because research resources were (limit). Tu and her team managed to find solutions the problem. When there was no research equipment, they had to extract herbs (use) household water (contain). They worked day and night and their health began to suffer because of the poor conditions, but they never gave up.
promising
Inspired
redesigned
to damage
extracting
making
However
to
limited
using
containers
Further thinking
Q:What do you think of Tu Youyou
She collected over 2,000 traditional Chinese medical recipes, and made hundreds of extracts from different herbs. (L15)
hard-working
After 190 failures, she succeeded in making qinghao extract. (L21)
patient
Tu and her team worked day and night and their health began to suffer, but they never gave up. (L26)
Committed
They volunteered to test qinghao extract on
themselves first. (L31)
Selfless
Further thinking
Tu shows some qualities as a successful scientist.
Cooperation
Selflessness
Bravery
Innovation/ Creativity
Cleverness
Determination
Persistence
Patience
Political Education
Q: In your opinion, what motivates Tu Youyou to work so hard
She has deep love and great passion for our country.
As long as our country needs her, she will complete the task at any cost.
Patriotism
Homework
Homework
Revision: Read the passage again, and share Tu Youyou’s story to your friends.
Writing: Rewrite Tu Youyou’s story on your own words.