八年级下unit7SectionA Period1

Unit 7 Whats the highest mountain in the world?教学目标：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。教学重点：短语: in size, in the world, 2 meters tall/long/wide, the biggest population,句子: 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.教学难点：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 A 1 (1a 2d)Step 1 Presentationsquare n. 平方 meter n. 米 deep adj. 深的 desert n. 沙漠 population n. 人口 population n. 人口Asia n. 亚洲 tour v. n. 旅行 tourist n. 旅行者wall n. 墙 amazing adj. 令人大为惊奇的ancient adj. 古代的 wide adj. 宽的；宽阔和Step 2 Warming-up1. Watch the photos and talk about them “How big/high/long/big is ? and help the students to answer: Its meters/kilometers/cm big/high/long/big.2. Look these photos and practice the dialogue:e.g. A: How high is Qomolangma?B: Its 8,844 meters high.Step 3 1a Match the facts you know.Practice in pairs using the information in 1a.Qomolangma about 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Caspian Sea6,671 kilometers longThe Nile8,844.43 meters highStep 4 Explaination8,844 meters high. 8,844米高 meters high (long, wide)米高（长,宽)。英语表示“有多长（宽，高）”时，一般将数词和数量单位放在表示长宽高的形容词前作状语。e.g. The wall is 1.7 metres wide.Step 5 Listening 1. 1b Listen and complete the sentences.1) Qomolangma is _ than any other mountain in the world. 2) The Sahara is _ desert in the world.3) The Caspian Sea is _ of all the salt lakes.4) The Nile is _ river in the world.Step 6 Practice 1c Make conversations in pairs.Examples A: Did you know that China if one of the oldest countries in the world?B: Yes, I did. Its much older than my country.Step 7Homework A: To memor