unit 1 people of achievement第2课时示范课教学课件【人教选必修1】.docxVIP

方 Unit 1 People of Achievement 承 Period 2 Learning About Language 1 How was artemisinin discovered? You can use the words below. Vocabulary Activity 1: Write down the word that matches each definition. Then find the sentences containing these words in the text. boil cook something in very hot water botanical relating to plants properties qualities or characteristics of something Hquid a kind of substance that flows freely, such as water or milk substance physical material that exists substance physical material that exists Activity 1: The sentences containing these words in the text. ...，and decided to review ancient Chinese medical texts to find traditional botanical treatments for the disease. Her team examined over 2,000 old medical texts, and evaluated 280,000 plants for their medical properties. They then tried boiling fresh wormwood, and using the liquid obtained from this to treat malaria, but this did not work either. She concluded that boiling the sweet wormwood apparently destroyed its medical properties. Using a lower temperature to draw out the extract, she found a substance that worked. Fill in the blanks with the correct forms of the words in Activity 1. Tu Youyou and her team first tried boiling sweet wormwood and used the quid obtained, only to find it didnt work since its medical properties were destroyed. It was not until she used a lower temperature that the substance named artemisinin, a botanical treatment for malaria, was successfully extracted. Activity 2: Guess the meaning of the underlined words. Then fill in the blanks with words that have the same roots. The two flowers are quite distinct from one another, so it is easy to make a distinction between them. Scientists need to evaluate how the the new material stands up to wear and tear to prove how valuebl) it is. A talented scientist well known for his commitment to his country, Huang Danian committed himself to his research in geophysics. A: Did you come to any conclusions? B: Yes, we co