老师：Hello boys and girls. I'm holiday from Zhangzhou No. 1 High School. Welcome to my English class. Today we are going to learn Unit 1, topic two, the population in developing countries is growing faster. Section B. Hopefully by the end of the class, you will be able to, one, read big numbers and talk about population problems with expressions as a population of reach, increase by and etcetera.
老师：2, tell the difference between opinion and fact. 3, become aware of current affairs and have better understanding of our national population policies. Oh, we've got a new message. Let's read it. What is it? Wow, an invitation from the UN. How cool. And what is this? Aha, you have sharp eyes. It's the World Population Clock. Population means Ren KO. Please read after me. Population. See the number is growing as I'm talking. Or we can say it is increasing. Increase here means Songchang. Increase. Increase. Please repeat. Well done. And what does the UN invite us to do? It invites us to share the population problems and policies in our countries and then voice our opinions on population problems. What an owner. But how can we prepare for it? Don't worry. Let's learn about it.
老师：To talk about population problems, we have to learn to read graph 1st. Now please look at this graph. Can you tell me which country has the largest population? Has the largest population here means. And which country has the smallest population? Has the smallest population means, dingo, China has the largest population and Canada has the smallest population. And can you tell me what is the population of China? It's here. How can we read big numbers like this? Now please read aloud after me and observe.
老师：100,1000,10000,100000,1 million, 10 million, 100 million, 1 billion. What do you find? Bingo? To read big numbers. First we should try to separate the numbers in groups of three from right to left, like this. And then we should read it in order from billion, two million and thousand.
老师：Well, let's practice. How should we read it? Right? You are. It's 1 billion, 448 million, 497000,378. Remember to pay attention to the intonation. We can also say it's about 1.4 billion. And do you know what are these numbers stands for? Yep, it's the population of China. When I ask what's the population of China? You can say China has the population of or you can say it's about brilliant.
老师：Now let's read another graph and answer my question. When I ask what's the population of, you can answer me in this way. Are you ready? Let's go. What's the population of India? What's the population of us? And what's the population of Indonesia? Impressive. You are really good learner. Oh look, Kangkang and Maria are also reading some graphs. Can you guess what are they talking about? Let's listen an
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