英语人教版八年级下册Unit 7A 1.ppt

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1、square n.meter n.deep adj.desert n.population n.Asia n.tour v.n.tourist n.wall n.amazing adj.ancient adj.wide adj.How to read the numbers642641,26414,4562,140,4560.424.64从右往左，每满三个数字要加一个逗号从右往左，每满三个数字要加一个逗号第一个逗号，可记作第一个逗号，可记作 thousand第二个逗号，可记作第二个逗号，可记作million小数点读作小数点读作 point小数点后的数字，按个位基数词依次读出小数点后的数字，按个

2、位基数词依次读出读出下列数字：读出下列数字：nine hundred and eighty-threefive hundred and sixty-six seven hundred and nine 566_ 709_ 983_ 1,025one thousand and twenty-five3,872three thousand eight hundred and seventy-two84,321eighty-four thousand three hundred and twenty-one158,230one hundred and fifty-eight thousand,two

3、 hundred and thirty18,657,421eighteen million,six hundred and fifty-seven thousand,four hundred and twenty-one9,648,215nine million,six hundred and forty-eight thousand,two hundred and fifteen3,765,358,230three billion,seven hundred and sixty-five million,three hundred and fifty-eight thousand,two h

4、undred and thirty.Do you know these places?Qomolangma Qomolangma runs along the border between China and Nepal(尼泊尔尼泊尔).It is covered with snow all the year round.How high is Qomolangma?Its 8844.43 meters high.It is the highest mountain in the world.Height:8,844.43 meters The Nile(尼罗河尼罗河)runs through

5、 9 countries,its one of the largest river flows through the international states in the world and runs into the Mediterranean Sea(地中海地中海)in the end.Its the longest river in the world.How long is the Nile?Its 6,671 kilometers long.length:6,671 kilometersthe Nilethe Caspian Sea The Caspian Sea is the

6、deepest salt lake in the world.It lies in the border between Asia and Europe.How deep is the Caspian Sea?Its 1,025 meters deep.depth:1,025 meters The Sahara(撒哈拉沙漠撒哈拉沙漠)is the biggest desert in the world.It is located in the northern Africa.Climate conditions are very bad.the SaharaHow big is the Sha

7、ra?Its about 9,600,000 square kilometers in size.area:about 9,600,000 square kilometers1a 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 high1b Listen and complete the sentences.1.Qom

8、olangma 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.higherthe biggestthe deepestthe longestPractice in pairs like this:A:What is the in the world?B:A:How is?B:Its2a Listen and number t

9、he facts(1-4)in the order you hear them.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 histor

10、y 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.42132b 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

11、long._ China has the biggest population in the world.Its a lot bigger than the population of the US.6,3005,464_ 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.5,000300 中国的长城共有近

12、一万公里，东起河北秦皇岛的中国的长城共有近一万公里，东起河北秦皇岛的山海关，西到嘉峪关，这是明代修筑长城的两个最山海关，西到嘉峪关，这是明代修筑长城的两个最大关口，北京境内的长城有大关口，北京境内的长城有600余公里，比较著名余公里，比较著名的有八达岭长城、金山岭长城、司马台长城、慕田的有八达岭长城、金山岭长城、司马台长城、慕田峪长城、居庸关长城和箭扣长城等。峪长城、居庸关长城和箭扣长城等。The Great Wall 2d Read the conversation and answer the questions:1.Which is the biggest man-made objects in the world？2.Which is the most famous part of the Ming Great Wall?The Great Wall.Badaling part of the wall.