英语人教版八年级下册第七单元最后一课时教案.docx

Unit 7 Whats the highest mountain in the world?Aims：1语言目标：掌握本单元重点词汇及能用比较级和最高级谈论各之最。2 技能目标：能听懂和谈论有关地理和自然的话题。3 情感目标：培养学生热爱大自然，保护环境的意识。Difficult：Phrase: in size, in the world, 2 meters tall/long/wide, the biggest population, one of the biggest, the most popular question, talk about, the ancient emperors, the main reason, as far as I know, no man-made objects, mountain climbing, the southwestern part of China, thick clouds, cover the top, risk ones life, challenge oneself, achieve ones dream，the forest of nature, try to do sth., the spirit of the climbers, many times more than ,live up to, prepare for., be awake, be special to sb., spend some time doing sth., in the remaining forest, endangered animals, in the futureSentences: Whats the highest mountain in the world?Qomolangma.How long is Qomolangma?Its 8,844.43 meters high. Its higher than any other mountain.Which is the deepest salt lake in the world?The Caspian Sea is the deepest of all the salt lake.Did you know that China is one of the oldest countries in the world?Yes, I did. Its much older than the US.Important：形容词和副词的比较级和最高级变化规则和用法。 物体之间的对比。Section B 2 (3aSelf check)Step 1 SummaryImportant phrases:feel free, as far as I know, in the face of, even though, at birth, up to, run over, walk into, fall over, or soKey sentences:Whats the highest mountain in the world?Qomolangma.How long is Qomolangma?Its 8,844.43 meters high. Its higher than any other mountain.Which is the deepest salt lake in the world?The Caspian Sea is the deepest of all the salt lake.Did you know that China is one of the oldest countries in the world?Yes, I did. Its much older than the US.Important structures:1. cm taller/shorter 2. much /even/a little/less +比较级3. times more than .4. Talk about how to protect pandas.Step 2 Lead in对于鲸鱼你知道多少？鲸的体型是世界上存在的动物中最大的，鲸是终生生活在水中的哺乳动物，对水的依赖程度很大，以致它们一旦离开了水便无法生活，鲸形状像鱼，鼻孔在头的上部，用肺呼吸。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。Step 3 Writing3a Read the following words and phrases about whales. Put them in the correct place in the chart.1. Humans catch whales for meat, fat and oil2. Eat small fish and other sea life3. Jump high out of the water4. Rules on whale protection5. Huge6. Water pollution7. Live in the sea8. Some kinds have teeth9. Learn more about whales10. Stop putting rubbish into the sea11. Sing songs12. Whale parts sold to make things likes candles and soapWhat do they look like？5 8Where do they live?7What do they eat?2What can they do?3 11Why do some of them have to be protected?1 6 12How can we protect them?4 9 103b Write a paragraph about whales and why they need to be protected. Use the information in 3a. Then make a poster.Whales are They live in They eat They canOne interesting fact is Another interesting fact isSome kinds of whales are in danger becauseWe should protect whales fromI think people should/shouldntStep 4 Self-checkRead these words then find the rules.clever-cleverer-cleverest nice-nicer-nicest easy-easier-easiest fat-fatter-fattest thin-thinner-thinnestbeautiful-more beautiful-the most beautiful careful-more careful-the most carefulgood/well-better-bestbad-worse-worst many/much-more-most 1. Complete the chart.AdjectivesComparatives Superlatives highhigherhighestdangerousmore dangerousthe most dangerouslonglongerlongestpopularmore popularthe most popular2. Match verbs and objects. Then add one more object to each list.VerbsObjects1. reacha. my life, my money, my health2. achieveb. the top of a mountain, the library,the farmhouse3. riskc. my dream, success,the endsAnswers: 1-b, 2-c, 3-a 3. Circle the correct word and /or fill in the blank with the correct form of the word in brackets for each sentence.1. An elephant weighs (few/many) times more than a dog.2. An adult panda can eat (much/a little) more than a cat.3. Canada is a (little/lot) less _ (crowded) than China.4. A tiger is (much/a little) _ (strong) than a man.Answers: 1. many 2. much 3. lot more cr