英語人教版八年級下冊Unit 7 Section A (3a-4c).doc

教學(xué)設(shè)計Unit 7 Whats the highest mountain in the world?Section A 3 (Grammar focus - 4c)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 1 Grammar我們已經(jīng)學(xué)習過形容詞和副詞的比較級和最高級的構(gòu)成及基本用法。下面我們進一步學(xué)習與其相關(guān)的其他知識點。形容詞和副詞比較級的修飾語1. 比較級前可加much, a lot, a bit, a little, any, no, some, even, still等詞修飾。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. 比較級前還可加其他表示數(shù)量的詞。如：My sister is ten years younger than me.We reached here two days earlier than the others.形容詞和副詞最高級的其他用法1. 形容詞最高級可被second, third等序數(shù)詞修飾。如：The building is the second tallest in this city.2. 形容詞最高級常用于句型“one of +the+形容詞最高級 + 可數(shù)名詞的復(fù)數(shù)形式”，意為“最之一”。如： Liu Li is one of the most popular girls in our class.3. 形容詞和副詞的比較級和最高級可以互相轉(zhuǎn)換。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 2 中考鏈接1. 比較級考點 比較級修飾問題a little, a bit, even, still, much, a lot, far 等可修飾比較級。e.g. Tom is a little taller than Jim. This book is much more interesting than that one. the + 比較級e.g. Lucy is the fatter of the two girls.“a/an + 比較級”表示“又一，再一”e.g. Lily has a doll, but she wantsa bigger one.隱性比較（沒有than的情況）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.越來越.a. 比較級 + and + 比較級b. the + 比較級 + 句子，the + 比較級 + 句子e.g. Its getting colder and colder. The more you exercise, the better you are.2. 最高級考點說明：形容詞的最高級前必須加the; 副詞的最高級前省略the。 范圍問題e.g. Tom is the tallest student in the class. Spring is the best season of the year. “.之一”問題e.g. Beijing is one of the biggest cities in the world. “the + 序數(shù)詞 + 最高級”e.g. I think he is the second tallest boy in his class.3. 比較級和最高級的轉(zhuǎn)換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.同級比較 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 學(xué)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.A. big B. small C. bigger D. smallerKeys: DACBCStep 3 Fill in the blanks with the correct forms of the words in the box. big much popular long old high 1. The Amazon River is one of the _ rivers in the world. Its a little _ than the Yangtze River.2. Qomolangma is 8,844.43 meters _. Its one of the most _ places for serious mountain climbers.3. No ocean in the world is as _ as the Pacific Ocean.4. Although Japan is _ than Canada, it is _ smaller.Step 4 Write five questions using comparisons. Then ask your partner your questions.1. What is the highest building in our city? 2. What is the busiest subway station in out city? 3. What is the largest shopping mall in our city?4. Which is the bi