M9_412656.pptVIP

Learning goals（目标） 1.Learn the numbers. 2.Make a report about our growing population. 0 1 2 3 4 5 6 7 8 9 10 101 110 122 143 1,000 1,000,000 1,000,000,000 There are too many people in the world. What’s the population of China？ 2.What’s the population of the world？ 3.Population increase is a big problem .How do you know？ 4.What other problems does it cause？ 5.What should people do？（your advice） A Report There are too many people in the world. The population of China is 1.37 billion.That’s almost one fifth of the world’s population. The population of the world is 7 million. Population increase is a big problem . Over 250 babies are born every minute in the world. That means over 131.4million are born in a year. It causes a lot of problems ,such as too much traffic and noise…. People shouldn’t have too many babies. We should build many small cities,not huge cities. * Unit 1 The population of China is about 1.37 billion. Can you say these numbers? 11 12 13 14 15 16 17 18 19 20 21 30 40 50 60 70 80 90 100 zero one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one thirty forty fifty sixty seventy eighty ninety hundred one hundred and one one hundred and ten one hundred and twenty-two one hundred and forty-three one thousand（千） one million(百万） one billion(十亿） 1, 000, 000, 000 billion million thousand 123 1,234 12,345 123,345 1,234,567 one hundred and twenty-three one thousand, two hundred and thirty-four twelve thousand, three hundred and forty-five one hundred and twenty-three thousand, three hundred and forty-five one million ，two hundred and thirty-four thousand ，five hundred and sixty-seven comma 逗号 8,742 2,463,128 1,370,000,000 2,000,030,000 Listen and repeat the numbers. eight thousand, seven hundred and forty-two two million, four hundred and sixty-three thousand, one hundred and twenty-eight one billi