(课件网) Unit 3 Animals Are Our Friends Lesson 17: Save the Tigers 学习目标 Key words & phrases: century; courage; brave; reason; kill; cut; at the beginning of; drop to; food chain; in balance; in danger; cut down; as well. Key sentences: 1. Tigers are symbol of strength and courage. 2. It helps keep the number of other wild animals in balance. 3. For this reason, tigers are important to the environment. To learn some ways to protect animals. Words & Expressions Let's read 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 & Expressions Let's read balance reason disappear kill cut (cut/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 & Expressions Let's read at the beginning of drop to food chain in balance cut down as well 在……之初 下降到；跌至 食物链 保持平衡 把……砍倒；减少 （除某事或某人外）还；也 Have you ever seen a tiger？ Where did you see it Do you know how many types of tigers exist today Free talk the Bengal [be 'ɡ :l] tiger There are currently six types of tigers: 孟加拉虎 the Siberian [sai'bi ri n] tiger 西伯利亚虎 the Sumatran[su'mɑ:tr n] tiger the Malayan[m 'lei n] tiger 苏门答腊虎 马来亚虎 the Indochinese tiger the South China tiger 印度支那虎 华南虎 Do you think tigers need our help Why or why not No trading, no killing！ remember Love animals. Love the environment. Love the world. Presentation “Save the tigers ” is a group of volunteers. These volunteers hope to save the tigers of the world . At the beginning of the 20th century，the number of tigers in the wild was around 100 000. But today that number has dropped to a few thousand . Tigers live in the forests of Asia . They usually have orange fur and dark stripes . Tigers are symbols of strength and courage. In many stories，they are brave . The tiger is at the top of the food chain. It helps keep the number of other wild animals in balance. For this reason，tigers are important to the environment. Save the Tigers group works to protect the tigers . In recent years，tigers have been in danger of disappearing . Some people hunt and kill tigers for money . People have cut down a lot of trees as well. As forests disappear，tigers lose their homes . The number of tigers in the wild is quickly decreasing and we must do something about it. Learning Tip There are currently six types of tigers：the Bengal tiger，the Siberian tiger，the Sumatran tiger，the Malayan tiger，the Indochinese tiger and the South China tiger . Read Para. 1 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. Read Para.2 and fill the mind-map. . . . . . Tigers have orange fur and dark stripes symbols of strength and courage brave at the top of the food chain f ... ...
