英语人教版八年级下册Unit 7 Section A (1a-1c).doc

Unit 7 Whats the highest mountain in the world?Period 1 Section A (1a 1c)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, 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.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。Step 1 Presentationsquare n. 平方 meter n. 米 deep adj. 深的 desert n. 沙漠 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 8,844.43 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 Explanation8,844.43 meters high. 8,844.43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 meters wide.Step 5 Listening 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: What is the highest mountain in the world?B: QomolangmaStep 7 Grammar我们已经学习过形容词和副词的比较级和最高级的构成及基本用法。下面我们进一步学习与其相关的其他知识点。形容词和副词比较级的修饰语1. 比较级前可加much, a lot, a bit, a little, any, no, some, even, still等词修饰。如：You must work much faster.You look a lot happier than you did yesterday.He was too tired to walk any further.This book is even more useful than that one.2. 比较级前还可加其他表示数量的词。如：My sister is ten years younger than me.We reached here two days earlier than the others.形容词和副词最高级的其他用法1. 形容词最高级可被second, third等序数词修饰。如：The building is the second tallest in this city.2. 形容词最高级常用于句型“one of +the+形容词最高级 + 可数名词的复数形式”，意为“最之一”。如： Liu Li is one of the most popular girls in our class.3. 形容词和副词的比较级和最高级可以互相转换。如： Jane is taller than the other girls / any other girl in the club. = Jane is the tallest girl in the club. This car runs faster than the other ones / any other one in the garage. = This car runs the fastest of all the cars in the garage.学以致用1. Our family has bought a car so we can travel _ than before.A. most easily B. less easily C. easily D. more easily2. My father told me a story last night. It is _ one Ive ever heard. A. the funniest B. funniest C. funnier D. the funnier 3. The _ friends you have, the _ you will be. A. more, happy B. many, happy C. more, happier D. many, happier 4. When he heard a cry for help, he ran out as _ as he could.A. hardly B. quickly C. finally D. slowly5. This place is not big enough for Lucys birthday party. We should find a _ one