初中英语Unit 7 What’s the highest mountain in the world?Section A教学设计

这是一份初中英语Unit 7 What’s the highest mountain in the world?Section A教学设计，共6页。
 Section A 3 (Grammar focus — 4c)Grammar focus— What’s the highest mountain in the world?— Qomolangma.— How high is Qomolangma?— It’s 8,844.43 meters high. It’s 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. It’s much older than the US. Step 1 Lead-in Play a video:The more we get togetherAnd then show some pictures. Review comparatives and superlativesStep 2 Grammar形容词和副词比较级和最高级变化规则1大多数形容词有三个级。 1) 原级: 常用结构as ... as ... 像……一样 Zhang Hong is as tall as Tom.    张红和汤姆一样高。 2) 比较级 (用于两者之间的比较)常用结构：形容词比较级＋than ...    He is taller than I. 他比我高。3) 最高级(用于三者或三者以上的比较),常用结构:   the + 形容词的最高级＋of / in ... He is the tallest of the three.    他是这三个人中最高的。
He is the funniest in his class.    他是他们班最有趣的。  2. 形容词、副词比较级和最高级规则变化和不规则变化。  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：    clever－cleverer－cleverest     few－fewer－fewest     small－smaller－smallest等。2) 以e结尾的词，比较级＋r，最高级＋st 即可。 如：nice－nicer－nicest  cute－cuter－cutest   large－larger－largest 3) 以辅音字母＋y结尾的变y为i＋er或est
如: easy－easier－easiest         happy－happier－happiest 再如：early, busy, heavy, dirty, lazy也如此4) 双写最后一个辅音字母＋er 或 est的词,同学要用心去记。      fat－fatter－fattest        thin－thinner－thinnest      hot－hotter－hottest        red－redder－reddest      wet－wetter－wettest        big－bigger－biggest 5) 多音节和部分双音节的词需要在形容词原级前＋more构成比较级、＋the most构成最高级。如：   beautiful － more beautiful － the most beautiful 又如: delicious, popular, important,   interesting, expensive, creative等双音节的词如:
careful － more careful － the most careful
useful － more useful － the most useful 少数单音节词也是这样，如：
pleased－more pleased－the most pleased   tired－more tired－the most tired 2. 不规则变化：
good —better — best   well —better — best bad－worse － worst     many / much — more — most far — farther —farthest       (距离远)   far — further — furthest      (程度深) old — elder — eldest         (长幼)   old — older —oldest         (年龄)Read the sentences below.— What’s the highest mountain in the world?— Qomolangma.— How high is Qomolangma?— It’s 8,844.43 meters high. It’s 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. It’s much older than the USStep 2 中考链接比较级考点① 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.② 同级比较e.g. The weather in Beijing is colder than that in Xi’an.
     Our school is bigger than yours.③ the + 比较级e.g. Lucy is the fatter of the two girls.④ “a/an + 比较级” 表示“又一，再一”e.g. Lily has a doll, but she wants a bigger one.⑤ 隐性比较（没有than的情况）e.g. Who runs faster, Lucy or Lily?
    You’d better come earlier next time.
    He worked hard last term, but he works even harder this term.⑥ 越来越...... 比较级 + and + 比较级b. the + 比较级 + 句子，the + 比较级 + 句子e.g. It’s 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。① 范围问题e.g. Tom is the tallest student in the class.
    Spring is the best season of the year.② “......之一”问题e.g. Beijing is one of the biggest cities in the world.③ “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. 总结：      ① any other + 名词单数               the other + 名词复数      ② 否定 + 比较级 = 最高级                 比较级 + 极限 = 最高级 2. 同级比较① as + adj./adv. + as
e.g. She is as thin as Lily.
    He writes as carefully as Linda.
② not + as/so + adj./adv. + as
e.g. Tony didn't run so fast as Carter 学以致用1. My brother is ___ more outgoing than me.           A. many      B. little    C. much2. October 12th was one of ______ days in  2005. Shenzhou-VI was launched (发射） successfully.                A. exciting              B. more exciting         C. the most exciting3. Which city is ______, Beijing, Shanghai or Fuzhou?             A. beautiful                  B. more beautiful               C. the most beautiful4. _____ children there are in a family, ____ their life will be.           A. The less, the better     B. Fewer, richer    C. The fewer, the better5. Mobile phones are very popular now and  they are ______ than before.          A. cheap       B. cheaper    C. the cheapest6. In our city, it’s _____ in July, but it’s even  _____ in August.          A. hotter, hottest             B. hot, hot       C. hot, h Step 3 Fill in the blanks with the correct forms of the words in the box.  big    much   popular   long   old   high   Step 4  Write two comparisons about two topics. Write true facts.e.g. Two rivers: the Yangtze River and the Amazon RiverThe 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  HomeworkWrite five questions using comparisons. Then ask your partner your questions