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教学重点：
短语: in size, in the world, 2 meters tall/long/wide, the biggest population, feel free, as far as I know.
句子: What’s the highest mountain in the world?
Qomolangma.
How long is Qomolangma?
It’s 8,844.43 meters high. It’s higher than any other mountain.
What is the deepest salt lake in the world?
The Caspian Sea is the deepest of all the salt lake.
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。
Module 1 : Basic knowledge
Step 1 : Warm up (3 minutes)
T: What is your favorite subject?
S:Chinese,English,Art,Music…
T:Can you guess what my favorite subject is?
S:…
T：Look at a VCR,let’s know some places in the world.
(方法指导：播放视频，吸引学生的注意力，让学生了解一些自然风景)
Step 2 Presentation
Learn the new words.
square, meter, deep, desert, Qomolangma，The Sahara，The Caspian Sea，The Nile
Step 3 1a Match the facts you know.
Qomolangma about 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Caspian Sea6,671 kilometers longThe Nile8,844.43 meters highStep 4 Explanation
1. Read 1a---1c alone and circle some words and phrase you don’t understand. Pay more attention to the words (square, meter, desert, deep)
2. Group work and help out with the problems.
3. Practice in pairs using the information in 1a.
(方法指导：展示学习目标，学生齐读核心知识，让学明白本节课学什么？学生自读教材内容，画出自己不明白的词、短语、句子，教师在巡视过程中鼓励学生并帮助解答疑问。)
…8,844 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。