Unit 1 The population of China is about 1.37 billion.1，What is your plan?2，What does it mean?1，复习，复习Unit 1 单词单词2，读懂，读懂Unit 1 课文，并熟记课文，并熟记重点短语和句式重点短语和句式Can you say these numbers?012345678910111213141516171819202130405060708090100zeroonetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentytwenty-onethirtyfortyfiftysixtyseventyeightyninetyhundred1011101221431,0001,000,0001,000,000,000one hundred and oneone hundred and ten one hundred and twenty-twoone hundred and forty-threeone thousand（千）（千）one million(百万）百万）one billion(十亿）十亿）1, 000, 000, 000billionmillion thousand1231,23412,345123,3451,234,567one hundred and twenty-threeone thousand, two hundred and thirty-fourtwelve thousand, three hundred and forty-fiveone hundred and twenty-three thousand, three hundred and forty-fiveone million two hundred and thirty-four thousand five hundred and sixty-sevencomma 逗号逗号英语中四位数和四位数以上数字的读法：英语中四位数和四位数以上数字的读法： 从数字的右端向左端数起，每三位数加一从数字的右端向左端数起，每三位数加一个逗号个逗号“，”。从右开始，第一个。从右开始，第一个“,”前的前的数字后添加数字后添加 thousand，第二个，第二个“,”前面的数前面的数字后添加字后添加 million，第三个，第三个“,”前的数字后添前的数字后添加加 billion。然后一节一节分别表示，两个逗。然后一节一节分别表示，两个逗号之间最大的数为百位数形式。号之间最大的数为百位数形式。7,00028,000135,000 7,000,0004,500,00079,000,000350,000,00021,000,000,000Lets practise!seven thousandtwenty-eight thousandone hundred and thirty-five thousandseven millionfour million and five hundred thousandseventy-nine million three hundred and fifty milliontwenty-one billion2,648 two thousand, six hundred and forty-eight16,250,064 sixteen million, two hundred and fifty thousand and sixty-four5,237,166,234 five billion, two hundred and thirty-seven million, one hundred and sixty-six thousand, two hundred and thirty-four8,742 2,463,128 1,370,000,0002,000,030,000Listen and repeat the numbers.eight thousand, seven hundred and forty-twotwo million, four hundred and sixty-three thousand, one hundred and twenty-eightone billion, three hundred and seventy milliontwo billion and thirty thousand1，为，为.准备准备2，不断增长的人口，不断增长的人口3，谈论，谈论4，比如，例如，比如，例如5，人口增长，人口增长6，稍等一下，稍等一下7，写下，记下，写下，记下8，在将来，在将来9，.的五分之一的五分之一10，写报告，写报告prepare forour growing populationtalk aboutsuch aspopulation increasehang on a minutewrite downin the futureone fifth ofwrite report1，为，为.准备准备2，不断增长的人口，不断增长的人口3，谈论，谈论4，比如，例如，比如，例如5，人口增长，人口增长6，稍等一下，稍等一下7，写下，记下，写下，记下8，在将来，在将来9，.的五分之一的五分之一10，写报告，写报告prepare forour growing populationtalk aboutsuch aspopulation increasehang on a minutewrite downin the futureone fifth ofwrite report1. Is population increase a big problem in many countries? Yes, it is.2. How many babies are born every minute in the world? Over 250.3. Will Chinas population grow fast? Why? No, it isnt. Because families are getting smaller.Babies born every minute in the world:Babies born every year in the world:Population of China:Population of the world:over 250131.4 millionabout 1.37 billionabout 7 billion1. Birth happens at the start / at the end of life.2. Huge means large / small.3.An increase in population means more / fewer people.4. Hang on a minute means waiting for a short time / a long time.5. Making notes means writing a long passage / a few words.6. A problem is something easy / difficult.7. A report is a long piece of writing / a few words.8. A billion is a hundred / a thousand million.Check the statements you agree with.1. There are too many people in the world. 2. The increasing population is the biggest problem in the world. 3. People should not have too many babies.4. A city should not hold more than one million people. Enjoy the pictures.Whats happening to our city now?crowdssmokepollutionheavy trafficnoisepopulationWhats happening to our city?Who causes pollution?What can we do?Think and speak.Im so tired. Help me!Help me! Work in pairs. Talk about the results of overpopulation(人口过剩人口过剩). 1.There is not enough space.2.There is too much traffic, noise and pollution.3.Along with the crowds, there will be 4. smoke and the transport problems.5.4. If there are too many people, their 6. work will be influenced in the future. 7.5. .翻译下面的词组翻译下面的词组1，为，为.准备准备 2，不断增长的人口，不断增长的人口3，谈论，谈论 4，比如，例如，比如，例如5，人口增长，人口增长 6，稍等一下，稍等一下7，写下，记下，写下，记下 8，在将来，在将来9，.的五分之一的五分之一10，写报告，写报告