Unit 1Build up your vocabulary (ppt课件)-2022新人教版（2019）《高中英语》选择性必修第一册.pptx

1、Unit 1People of AchievementBuild up your vocabularyartemisinin.Tus 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

2、medicine on_.The medicine became _ _ for malaria.over 2,000 old280,000380 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 didnt work either.lower temperature to draw on themselves malaria patients

3、a standardmedical textsplants for their medical properties.ancient Chinese medical treatmentswormwood leaves but found no effect treatmentoutFind the words in the passageShe concluded that boiling the sweet wormwood apparently destroyed its medical properties.They then tried boiling fresh wormwood,a

4、nd 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 diseas

5、e.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 didnt work since its medical_were destroyed.It was not until she used a lower

6、 temperature that the _named artemisinin,a _treatment for malaria,was successfully extracted.Answers:boiling liquid properties substance botanicalConclusion-derivation(派生法）/affixation（缀合法）-prefix(前缀）-suffix（后缀）Functionsprefix chages the meaning of the words.suffix changes the part of the speech or t

7、he 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

8、 people_that he was a scientist and educator who is worth our admiration.Answers:value analyse distinct committed concludeDiscuss the following questions.1.What was Lu Xuns 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?Homework1.Finish the paper.