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①Play a game about ‘Tongue twister’to review the numbers.
②show a chart and ask some questions to review SectionB, talk about the population problem, and then lead to 1a.
Before reading , discuss the questions with your partner.
1) Why does China carry out the one-child policy?
2) What social problems do you think China’s large population has caused?
Step2:Presentation
1.Listen to 1a, write the title of the passage and finish 1b.
2. Read 1a carefully again , find out the following phrases and finish 1c.
五分之一
满足人们的日常需求
到目前为止
采取措施去干某事
……作为……而著名/……被称作……
在某方面起了很好作用
多亏，由于
Step3: Consolidation
1.Read Paragraph 1 and fill in the blanks.
Asia has a population of _____________. That’s to say, almost ______ of the people in the world live in Asia now.
2.Read Paragraph 2 and fill in the blanks
★Because of the large population, there is __________________ for each family.
★Because of the large population, it is difficult for lots of people ______________.
★Because of the large population, it is hard for China to supply _______ and ______ to satisfy people’s daily needs(满足人们的日常需求）.
★Because of the large population, most cities are ______________ than before, and the traffic is much __________.
★Because of the large population, natural environments are becoming _______
_____________.
Step4 :Practice
Finish2 Complete the following passage with the correct forms of the given words or phrases.
Then check the answers.
Step5 Project
3a Work in groups and search for the information about the following questions. Then share your idea with your group members.