英语人教版八年级下册Unit7 SectionA(1a-1c).doc

Unit 7 Whats the highest mountain in the world?（1a-1c）授课教师：黄盛美 授课时间： 2017 年5月 23日 课型：新课教学目标：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：1 学会4个四会单词：square， meter ，deep，desert；2 短语：in size，in the world，2 meters tall/long，one of the biggest；3 句子：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.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。Section A 1 (1a 2a)Step 1 Reviews: We have learn Unit 6 last week(yesterday),and today well learn Unit 7 Whats the highest mountain in the world?形容词、副词的最高级：三者或三者以上比较用最高级.1) 常与in短语或of短语连用。形容词最高级前要加the, 但当前面有物主代词、名词所有格等修饰时，不加 the。副词最高级前可省 the.eg. Susan is _(short) in her class. He is _(popular) of these boys. Alice is my _(good) friend among the three girls.2) 形容词最高级前可被序数词修饰，其结构为：the + 序数词+形容词最高级+单数名词. eg. The Yellow River is _(第二长) river in China. 3) “one of +the+形容词的最高级+复数名词”表示“最的之一”eg. Hang zhou is one of _(beautiful)_(city)in China.( ) 3.Mo Yan is one of _writers today.A. more famous B. most famous C. much more famous D. the most famous 4）“a + 最高级”， “非常”, very.eg. Its a most important question.= Its a _ important question.2. Show some pictures and information of the highest mountain, the longest river, the deepest salt lake and the biggest desert in the world.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.Qomolangma about 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Caspian Sea6,671 kilometers longThe Nile8,844.43 meters highStep 4 Explanation :1025 meters deep，“1025米深”，英语中，表示长，宽，高等时，主要有两种方式：（1） 基数词 + 单位词 + 形容词（long, wide, high, deep）（2） 基数词 + 单位词 + in + 名词（length, width, height, depth）;常见的单位词有：meter(米)，foot(英尺)等。eg: 两米长_/_;5英尺高_/_;10米深_/_;( ) 1.The Yangtze River is about _.A. 6300 kilometer long B. 6300 kilometers long C. 6300-kilometer long D. 6300 kilometers long( ) 2. Its _ tree.A. 10 meters tall B. 10 meters tall C. a 10-meter-tall D. a 10-meters Step 5 Listening 1. 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.【探究乐园】1.Qomolangma is higher than any other mountain in the world.珠穆朗玛峰比世界上其他任何山峰都高。“比较级+than any other +单数名词+比较范围”=“比较级+than the other+复数名词+比较范围” , 且可与最高级互换。该句的同义句是：Qomolangma is _than the other_ in the world.或: Qomolangma is_ mountain in the world .eg. Lucy is the most hard-working student in the class.(改同义句)Lucy is _ _ than any other student in the class.Lucy is _ _ than _ other students in the class.1. Tom is _ (tall) than any other_ (player) in the school team.( ) 2. The girl is _ than any other girl in her class.A. more beautiful B. the most beautifulC. much beautiful D. beautifully巩固练习1.My bedroom has about 10 _(平方) in size.2.Chinas area is 9600000 _ (平方) kilometers.3.The Caspian Sea is deeper than any other _(sea)4. I want to buy a _ ruler.Do you know what its _is? A. long; long B. long; length C. length;long D. length; length（）5. She is better at English than _in her class. A. any other student B. other student C. any other students D. the other student（）6. -Did Kate do the best in the exam? -No, but of all the students she was _ A.the most careful B. more careful C. most carefully D. more carefully（）7. -The doctor told me not to eat too much, but I find it difficult. -The doctor is right. _ you eat, _ you will be. A. The less; the healthier B. The less; the more hea