UNIT1The Developing World TOPIC2 China has the largest population!Section B

课件22张PPT。Section B重庆北碚区夏坝中学 瞿兴俐Topic 2 China has the largest population!（录音）numbers in our lifeone hundred and fifty yuan two thousand and eight Olympic Gamesmillions of stars since(自从）650 million years agoabout one billion (1,000,000,000 ) years oldtwo point two six (2.26) meters tall 1,000,000,000 one billion 1.34 one point three four100 one hundred 1,000 one thousand 1,000,000 one million 十亿点Look543.7 five hundred and fifty-three point seven 768 seven hundred and sixty-eight 6 004 001 six million, four thousand and one 7 198 764 502 seven billion, one hundred and ninety-eight million, seven hundred and sixty-four thousand, five hundred and twoListen and Say（录音）1.34 one point three four 100 one hundred 1,000 one thousand 1,000,000 one million 1,000,000,000 one billion543 five hundred and forty-three 3 980 three thousand , nine hundred and eighty 98 721 ninety-eight thousand , seven hundred and twenty-one 768 540 seven hundred and sixty-eight thousand , five hundred and fortySay1.34 one point three four 100 one hundred 1,000 one thousand 1,000,000 one million 1,000,000,000 one billion5 555 555 555 five billion, five hundred and fifty-five million, five hundred and fifty-five thousand, five hundred and fifty-five 2 346 780 two million, three hundred and forty-six thousand, seven hundred and eighty 405 000 000 forty hundred and five millionThere are about 1.3 billion people in China. = China has a population of 1.3 billion. What’s the population of China?A: What’s the population of China? B: It’s about 1.3 billion.Pair work Talk about the chart6, 500,000,000 What a large population!6.5 billionThe population is increasing by 80 million every year.808080 Which countries have larger popula-tion, developing countries or develop-ed countries? Developing countries. 2. What has China already done to control the population? China has carried out the one-child policy.1a listen read and answerA：What a large population ! The world … 6.5 billion. … 80 million every year. B：Which country …? A：China … with…, and India …with …. B：… the U.S.A.? A：296 million. B：It shows … developing countries … developed countries. A：… grow faster … B：So it is. The population problem … developing countries A：China … carry out … control the population.Act out the dialog6 575(miles)32 million210 million326 (yuan)8 844.43(meters)CanadaWork aloneMount Qomolangmadinosaur（录音）Sum uphow to read the numbers in English What’s the population of …? increase by carry out Exercises1.— ____ is the population of Indonesia? —223 million. A. How much B. How many C. What D. How 2.There are _____ students in our school. A. three thousands B. three thousands of C. three thousand of D. three thousand CD1.完成同步练习册Section B。 2.Talk about the topics a. Why does China carry out the one-child policy? b. What are the population problems?Homeworkpopulation (large small) 集合名词 某地整体人口是多少 (作单数) 强调具体成员 某地的部分人口(作 ... ...