八年级英语下册Unit3AnimalsAreOurFriendsLesson17SavetheTigers课件.pptx

Unit 3 Animals are our friends Lesson 17 Save the tigers Where can you usually see a tiger? Do you think tigers need our help? Why or why not? There are currently six types of tigers: the Bengal tiger, the Siberian tiger, the Sumatran tiger, the Malayan tiger, the Indochinese tiger the South China tiger. the Bengal tiger the Siberian tiger the Sumatran tiger the Malayan tiger the Indochinese tiger the South China tiger century fur symbol courage brave chain n. 世纪 n. （兽类的）毛 n. 标志，象征 n. 勇气，胆量 adj. 勇敢的，无畏的 n. 链子；链条 Words and expressions balance reason disappear kill cut decrease n. 平衡，平稳 n. 原因，动机，理由 v. 消失，失踪 v. 杀死 v. 砍，切，剪，割 v. 使变小；减少 Words and expressions To use the following words and expressions correctly: century, courage, brave, reason, kill, cut, at the beginning of, drop to, food chain, in balance, in danger, cut down, as well objectives Read the lesson and answer the questions. 1. How many tigers were there at the beginning of the 20th century? Around 100 000. 2. How many tigers are there in the wild today? The number has dropped to a few thousand. 3. Where do tigers live? They live in the forests of Asia. 4. What do tigers look like? They usually have orange fur and dark stripes. 5. What do tigers symbolize? They are symbols of strength and courage. 6. How are tigers described in many stories? They are brave. 7. What does “at the top of the food chain” mean? Tigers are the king of all the wild animals. 8. What is the reason tigers are important to the environment? Because tigers help keep the number of other wild animals in balance. 9. Why do people hunt and kill tigers? They are for money. 10. Aside from their being hunted and killed, what is another reason tigers are disappearing?