人教版（2019）选择性必修第一册Unit 1People of Achievement Build up your vocabulary 课件(16张ppt)

(共16张PPT)
Unit 1
People of Achievement
Build up your vocabulary
Complete the flow chart of discovering artemisinin.
Tu’s team examined ________________
_____________, and evaluated _______ _________________________________
They discovered and tested __________ ______________________________
They tested _______________________
_________________________________
They tried ________________________
_________________________________
but______________________________
They used a _____________________
_______the sweet wormwood extract.
They found one medical text
suggesting _____________________
______________________________
They tested the medicine _____________ to see if safe.
They tested the medicine on___________.
The medicine became _______________ ___________ for malaria.
over 2,000 old
280,000
380 distinct
using the extract from
sweet wormwood to treat a fever.
a collection of dried
boiling fresh wormwood and using the liquid obtained from it
this didn’t work either.
lower temperature to draw
on themselves
malaria patients
a standard
medical texts
plants for their medical properties.
ancient Chinese medical treatments
wormwood leaves but found no effect
treatment
out
Find the words in the passage
She concluded that boiling the sweet wormwood apparently destroyed its medical properties.
They then tried boiling fresh wormwood, and using the liquid obtained from this to treat malaria, but this did not work either.
Her team examined over 2,000 old medical texts, and evalutated 280,000 plants for their medical properties.
...,and decided to review ancient Chinese medical texts to find traditional botanical treatmennts for the disease.
Using a lower temperature to draw out the extract, she found a substance that worked.
Fill in the cloze using the words in activity 1.
Tu Youyou and her team first tried______sweet wormwood and used the ______obtained, only to find it didn't work since its medical______were destroyed. It was not until she used a lower temperature that the _____named artemisinin, a _____treatment for malaria, was successfully extracted.
Answers:
boiling
liquid
properties
substance
botanical
commit
committed
commitment
commission
distinct
distinction
distinctive
indistinct
distinguish
conclude
conclusion
conclusive
concluding
value
evaluate
valuable
invaluable
evaluation
valueless
analyse
analyser
analysis
analytical
Conclusion----derivation(派生法）/affixation（缀合法）
---prefix(前缀）
---suffix（后缀）
Functions
prefix chages the meaning of the words.
suffix changes the part of the speech or the meaning of the word.
To pursue his_____of life, Huand Danian gave up his well-paid job in Britain and returned to China when his country needed him. As a professor, he tried to _____and meet his students' _____needs. As a researcher, he ________himself to developing many devices needed for deep-Earth exploration. No wonder people_____that he was a scientist and educator who is worth our admiration.
Answers:
value
analyse
distinct
committed
conclude
Discuss the following questions.
1.What was Lu Xun's origianal objective
2.What made him change his mind
If you were him, would you change your mind Why
Which of his great qualities can be inferred from the passage
What title would you give to the passage
Homework
1.Finish the paper.