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1、Unit 7 Whats the highest mountain in the world? Section A,Whats the highest mountain in the world? Whats the largest desert in the world? Whats the longest river in the world?,Lead in,How high is Qomolangma? Its 8,844 meters high. The height of Qomolangma is 8,844.43 meters. The highest mountain in
2、the world is 8,844.43 meters high.,The longest river,the Nile,The biggest salt lakes,the Caspian Sea,The biggest desert in the world,the Sahara,How big is the Sahara? Its about 9,600,000 square kilometers in size. The biggest desert in the world is about 9,600,000 square kilometers in size.,1a Match
3、 the facts you know.,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.,higher,the biggest,the biggest,the longest,_The Yangtze Rive
4、r 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 t
5、he US, but it is the biggest country in Asia.,2a Listen and number the facts1-4 in the order you hear them.,1,4,3,2,2b Listen again and fill in the blanks in 2a with the numbers in the box.,1 The Yangtze River is about _ kilometers long and the Yellow River is _kilometers long. 4 China has the bigge
6、st population in the world. Its a lot bigger than the population of the US. 3 China is over _ years old. It has a much longer history than the US. The US is not even _ years old. 2 China is almost as big as the US, but it is the biggest country in Asia.,6300,5,464,5,000,300,2c Make conversations usi
7、ng the information in 2a.,Did you know that China is one of the oldest countries in the world?,Yes, I did. Its much older than my country.,2d Role-play the conversation.,3a Read the article and match each paragraph with the main ideas.,Pragraph1 Spirit of climbers Pragraph2 Achievements of climbers
8、Pragraph3 Facts and dangers,3b Read the article again and complete the chart.,snow, freezing weather and heavy storms,1960-the first Chinese team 1975-the first woman,the popular places the highest mountain the most famous,3c Answer the questions using information in the article.,1. Where are the Hi
9、malayas? 2. How high is Qomolangma? 3. Why do so many people try to climb this mountain even though it is dangerous? 4. What does the spirit of the climbers tell us?,They run along the southwestern part of China.,8,844.43 metres high.,Because people want to challenge themselves in the face of diffic
10、ulties.,We should never give up trying to achieve our dreams.,Grammar,形容词和副词的 比较级和最高级,形容词和副词的比较级和最高级（规则变化） 单音节词和少数多音节词 一般在词尾加-er 或-est 原级 比较级 最高级 high strong fast slow,higher highest,stronger strongest,faster fastest,slower slowest,以字母e结尾的词，加-r 或-st 原级 比较级 最高级 fine late,finer finest,later latest,以“辅
11、音字母+y”结尾的双音节词，先改“y”为“i”，再加-er或-est 原级 比较级 最高级 easy lucky early,easier easiest,luckier luckiest,earlier earliest,多音节词和部分双音节词在词前加more或most 原级 比较级 最高级 delicious interesting easily carefully,more delicious most delicious,more interesting most interesting,more easily most easily,more carefully most caref
12、ully,better best,worse worst,more most,less least,farther farthest further furthest,（不规则变化） 原级 比较级 最高级 good/well bad/badly many/much little far,1. Qomolangma is 8, 844. 43 meters high. 珠穆朗玛峰高8 844. 43米。 The Caspian Sea is 1, 025 meters deep. 里海深1 025米。 The Nile is 6, 671 kilometers long. 尼罗河长6 671千米
13、。,知识点精讲,【自主领悟】数词+meters (kilometers) +long (high/tall/wide/ deep/thick/heavy. . . ), 是英语中表示计量的方法, 其中表示人、树的高度用tall, 表示物体的高度用high。 例如: My English teacher is 1. 82 meters tall. 我的英语老师高一米八二。,【归纳拓展】英语中表示计量的其他方法 长、宽、高还可以用复合形容词, 即“数字+量词(单数)+long/wide/high. . . ”表达, 中间加连字符, 常用作定语。例如: This is a ten-meter-wid
14、e street, and the traffic is busy. 这条路宽十米, 交通繁忙。,【活学活用】 黄河长5 464千米。 The Yellow River is 5, 464 . 死海约深392米。 The Dead Sea is about 392 . The mountain is 1, 500 meters high. (改为同义句) It is a mountain. 答案: kilometers long meters deep 1, 500-meter-high,2. China has the biggest population in the world. 中国有
15、世界上最多的人口。 【自主领悟】population意为“人口”, 为不可数名词, 在表示人口“多”“少”时, 用large(big) 和small修饰。特指某一地区或某一国家的“人口”时, 其前常加定冠词the。例如: The population of my hometown is small. 我家乡的人口很少。,【归纳拓展】population的不同用法 population作主语时, 谓语动词常用单数形式, 但如果有分数或百分数等修饰时谓语动词用复数形式。问某地人口多少常用Whats the population of. . . ? 例如: Whats the population of South Africa? 南非的人口是多少?,【活学活用】 加拿大的人口是多少? _ _ _ of Canada? 印度人口相当多。 The populat
