(
课件网) Unit 7 What’s the highest mountain in the world 人教新目标版 八年级下 Section B3a-Selfcheck 写作优质公开课课件 Learning objectives 1.学习和巩固词汇短语句型:wale; oil; protection; huge; water pollution; be protected等； 2.获取鲸鱼的基本知识及其生存现状；就如何保护鲸鱼书写一篇说明文;能根据提示书写濒危动物的文章。 3.通过对濒危动物现状的了解,进一步増强保护动物,保护自然环境的意识。 1 2 3 They are huge . They live in the sea. They can sing songs. 4 They can jump high out of water. 5 Some of them are very clever and also very friendly. whale adj. 巨大的；极多的 Guess an animal Warming-up 鲸的体型是世界上存在的动物中最大的，它是终生生活在水中的哺乳动物，对水的依赖程度很大。鲸形状像鱼，鼻孔在头的上部，用肺呼吸。它体长可达三十米，是现在世界上最大的动物。鲸为适应水中生活，减少阻力，它们的后肢消失，前肢变成划水的浆板。身体成为流线型，酷似鱼。因而它们的潜水能力很强，小型齿鲸可潜至100-300米的水深处，停留4-5分钟，长须鲸可在水下300-500米处待上1小时，最大的齿鲸———抹香鲸能潜至千米以下，并在水中持续2小时之久。 虎鲸 座头鲸 habitat It lives _____. Something about whales appearance It’s_____. huge in the sea food It eats_____ _____. small fish and other sea life ability It can_____ _____. jump out of the water and sing songs Brainstorm Why are they in danger Humans catch whales for meat, fat and oil. n. 油；食用油；石油 Why are they in danger People use them to make things like candles and soap. Water pollution becomes more and more serious. How can we save them The government should make more laws and rules on whale protection. It’s a good idea to learn more about whales. We must stop putting rubbish into seas. We could make posters to let more people know about the whales’ situation. n. 保护；保卫 Humans catch whales for meat, Live in the sea fat and oil Some kinds have teeth Eat small fish and other sea life Learn more about whales Jump high out of the water Stop putting rubbish into the sea Rules on whale protection Sing songs Huge Whale parts sold to make things Water pollution like candles and soap Read the following words and phrases about whales. Put them in the correct place in the chart. 3a n. 油；食用油；石油 n. 保护；保卫 adj. 巨大的；极多的 What do they look like (appearance) Where do they live (home) What do they eat (food) What can they do (abilities) Why do some of them have to be protected (reasons) How can we protect them (ways) 1. Humans catch whales for meat,fat and oil 2. Eat small fish and other sea life 3. Jump high out of the water 4. Rules on whale protection 5. Huge 6. Water pollution 7. Live in the sea 8. Some kinds have teeth 9. Learn more about whales 10. Stop putting rubbish into the sea 11. Sing songs 12. Whale parts sold to make things likes candles and soap 5,8 7 2 3,11 1,6,12 4,9,10 It’s time to save whales! Whales are … They live in … They eat … They can … One interesting fact is … Another interesting fact is … Some kinds of whales are in danger because … ... ...
