英语人教版八年级下册unit7 1a-2c.ppt

1、Unit 7,Unit 7 Whats the highest mountain in the world?,30,000 thirty thousand,1,025 one thousand and twenty five,6,671 six thousand six hundred and seventy-one,842.35 eigh thundred and forty-two point three five,9,600,000 night million six hundred thousnd,1,000 one thousand,. Lead-in,1,025 9,600,000

2、 1,000,000,000 thousand million thousand billion million thousand 1.从个位起逆向每三位数加一个逗号（,） 2.右起第一个逗号读thousand(千) 3.右起第二个逗号读million(百万) 4.右起第三个逗号读billion（十亿）,数字的表达方式,数字的表达方式,30,000 842.35 thirty thousand eigh thundred and forty-two point three five 1.英语中无“万,亿”这两个单位，要表示则需要借用thousand,million. 2.在hundred后通常

3、加上连词and. 3.小数点一般读作point，后面的数字直接读出,30,000,1,025,6,671,842.35,9,600,000,1,000,What do the numbers remind you of ?,9,600,000,8,844,43,1,025,6,671,. Presentation,Do you know these interest places?,Qomolangma 珠穆朗玛峰,The Nile 尼罗河,The Caspian Sea 里海,The Sahara 撒哈拉沙漠,1a Match the facts you know.,1b Listen an

4、d 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 deepest,the longest,2a.,_ The Yangtze River is about _ kilometers long

5、 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 c

6、ountry in Asia.,4,2,1,3,6,300 5,000 5,464 300,6,300,5,464,5,000,300,Facts about China,one of the oldest countries the biggest population the biggest country in Asia the longest river in Asia,2c Make conversations using the information in 2a.,A: Did you know that China is one of the oldest countries in the world? B: Yes, I did. its much older than my country.,Practice,A: Did you know that Yangtze River is the longest river in China? B: Yes, I did. Its 6,300 meters long. B: Wow! Thats long!