Unit1 People of achievement 构词法课件-2022-2023学年高中英语人教版（2019）选择性必修第一册

Unit 1 People of Achievement Period 2 Learning about language Build up Your Vocabulary —How can we grasp the meaning of words? 1 Teaching objectives: By the end of this period, you will be able to： 1. grasp the meaning of words with pictures, definitions (定义) and examples. 2. grasp the meaning of words in topic-related context. 3. grasp the meaning based on affixes (词缀) and roots. 4. grasp the meaning of words by a mind map. 2 Which words come to your mind when you see the following pictures? Lead-in substance medical properties 药物属性；药用功能 boiling liquid botanical extracts 液体植物提取物 3 1.Write down the word that matches each definition. Then read the sentences containing these words in the text. _______: cook something in very hot water 1. They then tried boiling fresh wormwood… 在非常滚烫的水中烹饪 boil Build up your vocabulary Student’s book P4 Exercise 1 2. She concluded that boiling the sweet wormwood apparently destroyed its medical properties [bɔɪl] Tip1: to grasp the meaning of words with pictures, definitions and examples. 4 2. _________: relating to plants In 1969，she …decided to review ancient Chinese medical texts to find traditional botanical treatments for the disease. botanical 与植物相关的 Build up your vocabulary Student’s book P4 Exercise 1 1.Write down the word that matches each definition. Then read the sentences containing these words in the text. [bəˈtænɪkl] Tip1: to grasp the meaning of words with pictures, definitions and examples. 5 3. ___________: qualities or characteristics of something Her team examined over 2, 000 old medical texts, and evaluated 280,000 plants for their medical properties. 与品质或特征相关的东西 property Build up your vocabulary Student’s book P4 Exercise 1 1.Write down the word that matches each definition. Then read the sentences containing these words in the text. Root： proper : of one’s own Suffix： -ty: the state Tip1: to grasp the meaning of words with pictures, definitions and examples.