英语人教版八年级下册UNIT 7 sectionA 1a-2d.ppt

1、,Objectives,To learn new words: square, meter, deep, desert, population, Asia. To learn to compare facts To learn to express large numbers To learn to talk about geography and nature,Qomolangma the Nile the Caspian Sea the Sahara the Yangtze River the Yellow River,珠穆朗玛峰 尼罗河 里海(世界最大的咸水湖) 撒哈拉沙漠 长江 黄河,

2、square meter deep desert population Asia,n. 平方；正方形 n. 米；公尺 adj. 深的；纵深的 n. 沙漠 n. 人口；人口数量 n. 亚洲,Whats the highest mountain in the world? How high is it?,Do you know?,Qomolangma,Qomolangma is the highest mountain in the world. It is 8,844.43 meters high.,1,025,How do you read these numbers?,6,671,9,600

3、,000,8,844.43,one thousand and twenty- five,six thousand six hundred and seventy- one,nine million six hundred thousand,eight thousand eight hundred and forty -four point four three,Now let enjoy the beautiful scenes of Qomolangma:,Do you know these interest places?,Qomolangma,Qomolangma runs along

4、the border between China and Nepal. It is covered with snow all the year round. Its 8844.43 meters high, the highest in the world. Its 26 kilometers long. zxxk,The Nile is the longest river in the world. Its more than 6600 kilometers long. It runs through 9 countries, its one of the largest river fl

5、ows through the international states in the world and runs into the Mediterranean Sea (地中海) in the end.,the Nile,the Caspian Sea,The Caspian Sea is the biggest lake in the world. It lies in the border between Asia and Europe.Its about 1,000 meters deep.,The Sahara is the biggest desert in the world.

6、 It is located in the northern Africa, climate conditions are very bad, is one of the earths most not suitable for biological survival.,the Sahara,1a Match the facts you know.,Task 1,思 考 探 究,The Nile is 6,671 meters long. 尼罗河长6,671米。 表示物体的长、宽、高以及面积等，可用数字+单位词(meter, kilometer, mile, )+形容词(long, deep,

7、 high, )表示。 如： 5米深：5 meters deep 1) 700米高 _ 2) 20米深 _,700 meters high,20 meters deep,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 wor

8、ld.,higher,the biggest,the deepest,the longest,Task 2,Section A 1b.swf,What is the highest mountain in the world? What is the longest river in Asia?. ,Talk about these pictures in pairs.,A: What is the biggest desert in the world? B: The Sahara.,Example 1:,A: What is the longest river in the world?

9、B: The Nile.,Example 2:,Listen and number the facts 1-4in the order you hear them.,_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

10、 has a much longer history than the US. The US is not even _ years old. _ China is almost as big as the US, and it is the biggest country in Asia.,2a,1,4,3,2,_The Yangtze River is about _ kilometers long and the Yellow River is _ kilometers long. _ China has the biggest population in the world. Its

11、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, and it is the biggest country in Asia.,Listen again and fill in the blanks in 2a with the numbers in the box.,2b,6,30

12、0,5,464,5,000,300,6,300 5,000 5,464 300,1,4,3,2,? Thinking ?, China has the biggest population in the world. 中国拥有世界上最多的人口。 1）population，意为“人口”. have a big population 意为_；_ 意为“人口少”。 2) have a population of 意为“的人口是”. 中国的人口是13亿。 China has a population of about 1.3 billion. 3)Whats the population of ? 用于问某地的人口多少。美国的人口是多少呢？ _America?,人口多,have a small population,Whats the population of,巩固 练习,一、请根据中文意思写出下列重点单词。 1. n. 平方；正方形 2. n. 米；公尺 adj. 深的；纵深