英语人教版八年级下册Unit 7 Section A 3 教案.doc

Step 1 Revision Ask the Ss to retell the article.Step 2 Grammar focus Whats the highest mountain in the world? Qomolangma. How high 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 lakes. Did you know that China is one of the oldest countries in the world? Yes, I did. Its much older than the US. Step 3 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.Step 4 中考链接1. 比较级考点 比较级修饰问题a little, a bit, even, still, much, a lot, far 等可修饰比较级。e.g. Tom is a little taller than Jim. This book is much more interesting than that one. the + 比较级e.g. Lucy is the fatter of the two girls.“a/an + 比较级”表示“又一，再一”e.g. Lily has a doll, but she wantsa bigger one.隐性比较（没有than的情况）e.g. Who runs faster, Lucy or Lily? Youd better come earlier next time. He worked hard last term, but he works even harder this term.越来越.a. 比较级 + and + 比较级b. the + 比较级 + 句子，the + 比较级 + 句子e.g. Its getting colder and colder. The more you exercise, the better you are.2. 最高级考点说明：形容词的最高级前必须加the; 副词的最高级前省略the。 范围问题e.g. Tom is the tallest student in the class. Spring is the best season of the year. “.之一”问题e.g. Beijing is one of the biggest cities in the world. “the + 序数词 + 最高级”e.g. I think he is the second tallest boy in his class.3. 比较级和最高级的转换e.g. Tom is the tallest student in the class. = Tom is taller than any other student in the class. = Tom is taller than all the other students in the class. = No other students are taller than Tom.同级比较 as + adj./adv. + as e.g. She is as thin as Lily. He writes as carefully as Linda. not + as/so + adj./adv. + as e.g. Tony didnt run so fast as Carter Step 5