英语人教版八年级下册unit7 sectionA 1a-2c.doc

Unit 7 Whats the highest mountain in the world?沿山中学：张 静教学目标：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：短语: in size, in the world, 2 meters tall/long/wide, the biggest population, one of the biggest, the most popular question, talk about, the ancient emperors, the main reason, as far as I know, no man-made objects, mountain climbing, the southwestern part of China, thick clouds, cover the top, risk ones life, challenge oneself, achieve ones dream，the forest of nature, try to do sth., .句子: Whats the highest mountain in the world?Qomolangma.How long 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 lake.Did you know that China is one of the oldest countries in the world?Yes, I did. Its much older than the US.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 2c)Step1 GreetingT: Good morning class! Today we are going to learn unit 7 what is the highest mountain in the world? Do you know highest?引导学生复习形容词和副词比较级和最高级变化规则规则变化 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：nicenicernicest cutecutercutest largelargerlargest 3) 以辅音字母y结尾的变y为ier或est。如: easyeasiereasiest happyhappierhappiest .2. 不规则变化： good better best well better best badworse worst many / much more most far farther farthest (距离远) far further furthest (程度深) .Step 2Presentationsquare n. 平方 meter n. 米 deep adj. 深的 desert n. 沙漠 population n. 人口 Asia n. 亚洲 .Step 3 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 meters high.Step 4 1a Match the facts you know.Practice in pairs using the information in 1a.Qomolangma about 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Caspian Sea6,671 kilometers longThe Nile8,844.43 meters highStep 5 Explaination8,844 meters high. 8,844米高 meters high (long, wide)米高（长,宽)。英语表示“有多长（宽，高）”时，一般将数词和数量单位放在表示长宽高的形容词前作状语。e.g. The wall is 1.7 metres wide.Step 6 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.2. 2a Listen and number the facts(1- 4) in the order you hear them.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.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.“.最.之一”问题e.g. Beijing is one of the biggest cities in the world.2. 同级比较 as + adj./adv. + as e.g. She is as thin as Lily. He writes as carefully as Linda.2b Listen again and fill in the blanks in 2a with the numbers in the box.6,300 5,000 5,464 300_ The Yangtze River is about _ kilometers long and the Yellow River is _ kilometers long._ China has the biggest population in the world. Its a lot bigger than the population of the US._ China is over _ years old. It has a much longer history than the US. The US is not even _ years old._ China is almost as big as the US, but it is the biggest country in Asia.Step7 Practice 2c Make conversations in pairs.Examples A: Did you know that China if one of the oldest countries i