Unit1 The Changing World Topic 2 Which country has the largest population.

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Studying aims : 2.Get students to know how serious the overpopulation problem is. 1.Go on studying the present perfect.

Review 2.What’s the population of China? 1.What’s the population of the world?

The word’s population is increasing by 80 million every year. And it is growing faster and faster.

What problems does a large population cause ？

1a Read and understand 6.5

Asia had a population of ___________________ in That’s to say, ______ of the world’s population live in Asia. more than 3 billion half

Because of the large population, there is______ (more\ less) living space. Because of the large population, it’s ______ (difficult\ easy) for many people to find jobs. Because of the large population, we are short of _______ and _______. Because of the large population, the cities are _______ _______ than before. Because of the large population, the traffic is ______ _______.

1b. Because of the large population,there is less living space.

Because of the large population, it’s difficult for many people to find jobs.

Because of the large population, we are short of energy and water.

Because of the large population, the cities are more crowded than before.

Because of the large population, the traffic is much heavier.

What’s the topic sentence of paragraph three? What has China done to control the population ？ One-child policy. So farSo far, our government has taken many measures to control the population.

Say something about China’s one-child policy. What is the author’s attitude towards the population problem ？

One-child policy has worked well in controlling China’s population.

Find these phrases: 五分之一 缺乏 … 到目前为止 采取措施做某事 众所周知 在做某事上很有功效 有很长的路要走

1.and about one fifth of the people in the world live in China. 1.one fifth 五分之一 分数表达法 : 分子 ---- 基数词 分母 ---- 序数词 分子大于一, 分母要用复数 ¼ ¾ ½ 5/7 one fourth three fourths a half five sevenths

Language points: ２． be short of 缺乏 她总是缺钱 She is always short of money. be short for 是．．．的缩写 Eg: Bike 是 bicycle 的缩写. Bike is short for bicycle. Bicycle is called bike for short.

Language points: 3 ． be known as =be famous as 以．．．而闻名 Edision is famous as a great scientist. Edision is known as a great scientist.

Language points: 4.work well in doing 在做某事方面很有功效 Eg: 每天背课文在学习英语方面 很有功效. Reciting texts every day works well in learning English. 5.has a long way to go 有很长的路要走

Listen to 2a and fill in the blanks Every minute, about 261 babies are born in the world. That means people have to for about newborn babies every day. The world’s population is growing. It has become one of the biggest problems today. China has the largest population in the world. There are about 1.3 billion people in China. It has reached percent of the world’s population. China some policies to control the population, and these policies well. But China still faces a serious population problem. find food faster and faster 20 has carried out have worked 录音

Read 2a and mark T or F in 2b ( ) 1. About two hundred and sixty-one babies are born in China every minute. ( ) 2. The growth of the world’s population is becoming slower and slower. ( ) 3. Now the population of China is about ( ) 4. China has two fifths of the world’s population. ( ) 5. The Chinese government has solved the population problem successfully. F F T F F

Written work Population problem ｛ Current situation How to deal with it The population of China The population in the country Difficulties caused by large population ｛ prefer boys

Sum up How to read the fractions ( 分数 ) in English be short of so far take measures to work well in

Homework 完成同步练习册 Section C 。 Write a composition about The Population in China 。

one sixth one ninth one twentieth five sixths two ninths seven twentieths attention

one (a) half a quarter three quarters three and a half back

past now so far So far ， I have read five English masterpieces( 名著）. back

*What’s the population of the world /China/ …? *Which country has the largest population? *The population in ____ (develop) countries is larger and is growing ____ (slower / faster) *The population problem is ____ (more serious / less serious) in developing countries. developing

3 billion÷ 6.5 billion≈1 ／ 2 (half) 50 percent (50%) Almost half of the people in the world live in Asia.

1.3 billion÷6.5 billion≈1 ／ 5 (one 20 percent (20%) One fifth of the people in the world live in China. fifth) more