人教版八下-Unit 7 what's the highest mountain in the world -Section A Grammar focus 4a—4c-教案、教学设计-省级优课-(配套课件编号：10b39).docx

1、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 cou

2、ntries in the world? Yes, I did. Its much older than the US. Step 1 Grammar 形容词和副词比较级和最高级变化规则 1. 规则变化 1) 一般情况下，单音节或双音节的形容词（或副词）比较级er ， 最高级est 如： clevercleverercleverest fewfewerfewest smallsmallersmallest 等。 2) 以 e 结尾的词，比较级r，最高级st 即可。 如： nicenicernicestcutecutercutestlargelargerlargest 3) 以辅音字母y 结尾的

3、变 y 为 ier 或 est。如: easyeasiereasiest happyhappierhappiest 再如：early, busy, heavy, dirty, lazy 也如此。 少数单音节词也是这样，如： pleasedmore pleasedthe most pleased tiredmore tiredthe most tired 2. 不规则变化： good better bestwell better best badworse worst many / much more most far farther farthest(距离远) far further furt

4、hest(程度深) old elder eldest(长幼) old older oldest(年龄) Step 2 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. 同级比较 e.g. The weather in Beijing is colder than that in Xian. Our school is

5、 bigger than yours. 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 wants a 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

6、. a. 比较级 + and + 比较级 b. the + 比较级 + 句子，the + 比较级 + 句子 a. 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

7、 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 a

8、re taller than Tom. 2. 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 学以致用 1. Our family has bought a car so we can travel _ than before.（2008 陕西） A. most easilyB. less easily C. easilyD. more

9、easily 2. My father told me a story last night. It is _ one Ive ever heard.（2009 陕西） A. the funniestB. funniest C. funnierD. the funnier 3. The _ friends you have, the _ you will be.（2010 陕西） A. more, happyB. many, happy C. more, happierD. many, happier 4. When he heard a cry for help, he ran out as

10、 _ as he could.（2011 陕西） A. hardlyB. quickly C. finallyD. slowly 5. This place is not big enough for Lucys birthday party. We should find a _ one.（2012 陕 西） A. bigB. small C. biggerD. smaller Step3 Writing Write five questions using comparisons. Then ask your partner your questions Step 4 Fill in th

11、e blanks with the correct forms of the words in the box. bigmuchpopularlongoldhigh 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 i

12、s as _ as the Pacific Ocean. 4. Although Japan is _ than Canada, it is _ smaller. Step 5 Write two comparisons about two topics. Write true facts. e.g. Two rivers: the Yangtze River and the Amazon River The Yangtze River is almost as long as the Amazon River. The Amazon is longer than the Yangtze, but the Yangtze River is the longest river in China. Two cities: _ and _ 1. _. 2. _. Two animals: _ and _ 1. _. 2. _. Step5 Homework 1. To memorize the important phrases and sentences. 2. To make some sentences using as as, . times than, less than, more than