外研版英语八年级上册 Module 9 Population.Unit 3 Language in use课件(共38张PPT)

(共38张PPT)
Unit 3 Language in use
Module 9 Population
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学 习 目 标
复习巩固本模块所学单词、短语和句型。
1
3
复习巩固冠词的基本用法和大数字的读法。
学习并掌握句型： ①With more and more people in the world, more and more water is used.②As a result, getting good, clean water is becoming a problem in many places.③More than 3.4 million people die each year from drinking and washing with polluted water.
2
.
1
That’s a huge number.
The small local school in Parkville closed down five years
ago, and getting to the nearest school in Arnwick takes her an
hour by bus.
It said the world’s population was about 7.8 billion in 2020.
Parkville was near Arnwick, a city with a population of 10,000,000.
课 堂 学 习
Language practice
冠词
　　冠词是限定词的一种，不能单独使用，须用于名词之前。冠词分两类，一类是不定冠词a和an，另一类是定冠词the。有时也把名词前不用冠词的情况称为零冠词。
　　I have got a sister.　（不定冠词a）
我有一个姐姐。
　　She has an egg and some bread for breakfast. （不定冠词an）
早饭她吃一只鸡蛋和一些面包。
　　Lily plays the piano very well. （定冠词the）
莉莉弹钢琴很好。
Gramamar
一、不定冠词的基本用法
　不定冠词修饰可数名词单数，指人或物中的某一个或某一类。
　　1. 首次提到某人或某物，起介绍作用。
　　I am writing a report on city pollution.
我在写一篇关于城市污染的报告。
　　2. 表示“每一”的概念，相当于every。
　　I play computer games once a month.
我一个月玩一次电脑游戏。
　　3. 用于某些固定短语。　
　　have a good time玩得开心
　　in a hurry 匆忙
　　a lot of 许多；大量
二、定冠词的基本用法
1. 指前面提到过的人或物，或特指某人或某物。
I have a pet dog. The dog is black.
我有一条宠物狗，这条狗是黑色的。
2. 指谈话双方都知道的人或物。
Look at the white dress. How beautiful!
看那件白色的裙子，多漂亮啊!
3. 用于序数词以及形容词的最高级之前。
China has the largest population in the world, and India has the second
largest population. 中国是世界上人口最多的国家，印度是第二人口大国。
4. 用于世界上独一无二的事物。
The sun is bigger than the earth.
太阳比月球大。
5. 在江河、海洋、山脉等地理名词前及由普通名词构成的专有名词前。
the Great Wall of China长城
the Pacific Ocean 太平洋
6. 用于表示方位的名词前。
Guangdong is in the south of China.
广东在中国的南部。
7. 用于乐器名词的前面。
The boy enjoys playing the violin.
这个男孩喜欢演奏小提琴。
8. 在某些形容词前加定冠词，表示一类 人或物。
the rich 富人　　　the poor 穷人
the young 年轻人　the old 老年人
9. 在姓氏复数形式之前, 表示“一家人”或“夫妇两人”。
The Browns have been to China.
布朗夫妇两人去过中国。
10. 用于某些固定短语中。
by the way　顺便问一下　　　in the morning 在上午
三、零冠词的基本用法
1. 在球类活动、学科名称前，以及节日、月份、星期前不用冠词。
　　 We have Chinese, English and history on Monday.
我们在星期一上午上语文、英语和历史。
　　2. 名词前已有指示代词、物主代词、不定冠词或数词等作定语的名词前不用冠词。
　　 We have several questions to ask.
　　我们有几个问题要问。
　　3. 在某些固定词组和习惯用语中不用冠词。
　　by bus　乘公共汽车
　 at night 在晚上
　 in danger 处于险境
[注意]
有些名词前加冠词或不加冠词，所表示的意义不同。
(1) at table 在吃饭
at the table 在桌子旁
(2) in class 在上课
in the class 在班里
(3) in front of 在…的前面 （外部）
in the front of 在…的前部（内部）
数字
一、大数字
　　从右到左，将数字每三位数看作一个单位，用逗号隔开。读数字时从左向右，按划分的单位依次读出。
　　1,235, 408, 967
billion　　　　million　　　　thousand
十亿 百万 千
one billion , two hundred and thirty-five million, four hundred and eight thousand,
nine hundred and sixty-seven
二、分数
分子用基数词表示，分母用序数词表示。当分母大于一时，分母用复数形式。
　　one tenth 十分之一
　　two fifths 五分之二
　　three eighths 八分之三
　　[注意]
　　表达分数时下面是几个特例：
　　a half 一半；二分之一
　　a quarter 四分之一
　　three quarters 四分之三
　　[拓展] 20% 20 percent
三、小数
　　小数中的点读作point。
　　13.7　　thirteen point seven
140.78 one hundred and forty point seven eight
1.8 billion one point eight billion
1 China
2 the US
3 Australia
4 New Zealand
d) 1,411,780,000
c) 331,698,000
a) 5,084,000
b) 25,690,000
1 Work in pairs. Match the countries with their populations.
2 Read your answers to Activity 1 to the whole class.
China has a population of...
Now listen and check.
Tapescript:
China has a population of one billion, four hundred and eleven million, seven hundred and eighty thousand.
The US has a population of three hundred and thirty-one million, six hundred and ninety-eight thousand.
Australia has a population of twenty-five million, six hundred and ninety thousand.
New Zealand has a population of five million and eighty-four thousand.
3 Read the chart and answer the questions.
3 Read the chart and answer the questions.
1 Which city had the largest population in 2018
2 Which city's population will increase the most from 2018 to 2030
3 Which city will have a larger increase in its population, Mumbai or Cairo？
4 Which city/ cities do you think will have the biggest population problem Why
Cairo.
Dhaka.
Mexico City.
I think Dhaka will have the biggest population problem
because its population will increase fastest.
Mina is (1) ___ eighteen-year-old girl. She’s got (2) ___ brother and (3) ___ sister. Mina is (4) ___ oldest child in (5) ___ family. She lives in (6) ___ very big city. She has (7) ___ job in (8) ___ hotel. She hopes that one day she will have (9) ___ chance to go to (10) ___ college.
an
4 Complete the passage with a, an or the where necessary.
a
a
the
the
a
a
a
a
/
1 We believe the schools in Arnwick are very good, and we’re working to make them even _____.
2 Their flat is too large for two people. They want to find a ______ one.
3 Anna always talks about her ideas. I think she needs to listen _____.
4 There are a lot of parks in this city. I think there are _____ parks in a lot of other cities.
better
smaller
few good much small
more
fewer
5 Complete the sentences with the correct form of the words in the box.
6 Complete the diagram. Use the words in the box to help you.
air city flat public service school traffic
From Parkville to Arnwick: Problems and solutions
flats outside the centre of Arnwick
There is air pollution
takes an hour
People moved to the city to find jobs.
Parkville became part of Arnwick,and the population of Arnwick became even larger.
The traffic is bad.
It was expensive to live in the city centre.
solve Arnwick’s problems with better public services.
There will be more schools, so pupils won’t need to travels far.
The government is reducing air pollution from traffic.
Our world is facing many problems. Two of the biggest are the increasing population and pollution.
The (1) ___________ of the world is increasing quickly. Many people are leaving the (2) _____________ to work in the cities, but there is not enough (3) _______ for so many people.
Another huge problem for the world is (4)___________. There’s so much (5)_______ on the roads that in some cities the air is heavily polluted.
We should work harder to protect our world
population
countryside pollution population space traffic
7 Complete the passage with the words in the box.
countryside
space
population
traffic
1 Growing population is a problem ________________.
2 The population of world may grow more slowly ____________.
3 The supermarket ____________ when a bigger one opened in the town.
4 Usually ____________ an hour to get there by bus.
5 The town had a lot of pollution in the past but it is ________ a problem _________.
all over the world
all over the world closed down in the future it takes not … any more
8 Complete the sentences with the expressions in the box.
in the future
closed down
it takes
not
any more
a) It is cheaper to share a car than to have a personal car.
b) People in a car club do not often take buses, trains or the underground.
c) There are no car clubs in the US.
d) Joining car clubs is good for you and for the city.
9 Listen and choose the best summary.
√
1 Joining a car club is cheaper/ more expensive than having a personal car.
2 People in car clubs pay for/ do not pay for a car when they drive.
3 People in car clubs sometimes/ never take a bus or ride a bike.
4 People in car clubs probably are/ are not healthier.
10 Listen again and choose the correct answer.
Tapescript:
Joining car clubs is a good way to get around in cities. There are many car clubs in the US. You can use a car when you want to, and it’s cheaper than having a personal car.
You only pay for the car when you drive it. You can’t always use the car because sometimes you can take a bus, or walk or ride a bike. This is healthier for the city, as there will be fewer cars on the road. It is also healthier for you.
11 Work in pairs and discuss this question.
Do you think car clubs would be popular in China
Why/Why not
World population and water
With more and more people in the world, more and more water is used. In fact,
water use is growing more than twice as fast as the world’s population! As a result,
getting good, clean water is becoming a problem in many places. A lot of water
is polluted and in many areas people have to walk a long way to get clean water
for daily use. More than 3.4 million people die each year from drinking and washing
with polluted water. So let’s do everything we can to stop the pollution and save water.
Around the world
more and more
越来越多的
be polluted
被污染
动词不定式作目的状语
1.With more and more people in the world, more and more water is used.
随着世界上的人越来越多，越来越多的水被使用。
more and more意为“越来越多的”，其结构为 “比较级+and +比较级”，若比较级是在前面加more构成的形容词或副词，表示“越来越……”时，应用“more and more +原级”。
He is running faster and faster.他跑得越来越快。
My home town is becoming more and more beautiful.我的家乡变得越来越美丽。
Language points
2.As a result, getting good, clean water is becoming a problem in many places.
因此，在许多地方，获取优质而干净的水正成为一个问题。
(1)as a result意为“结果，因此”。
As a result, he lost his job.结果，他丢了工作。
（2）getting good, clean water是动名词短语作主语。单个动名词（短语）作主语时，谓语动词用单数形式。
Reading in the sun is bad for your eyes.
在太阳下看书对你的眼睛有害。
3.More than 3.4 million people die each year from drinking and washing with polluted water.
每年有超过340万人死于喝污染了的水和用污染了的水洗刷。
more than 意为“多于，超过”，与over 同义。
More than 20 students in our class are from Shandong.
我们班有20多名学生来自山东。

12 Work in groups. Prepare to make your graph.
Module task: Making a graph
Choose a country or town which interests you. It could be your home town.
Decide the points of time you want to look at —for example, now, ten years ago and ten years from now.
Research the population of your place in those years. Write your notes carefully.
13 Make your graph.
Decide how you want to make your graph.
Draw it and colour it. You can also make it on the computer.
Label it clearly.
14 Write a paragraph to describe your graph.
15 Present your graph to the class.
A possible answer:
In the graph, we can see how the population in the town changed between 1900 and 2000. We can see the population going up the vertical line and the years going across the horizontal line. The graph shows the population increased by more than one hundred percent from two and a half million to five million in one hundred years. At first it increased very slowly, but after 1945 it increased much more quickly. From 1990 to 2000, the population even increased by one million. The town itself also grew in size during this time.
1. Go over what you’ve learnt in Unit 3.
2. Preview the new words and expressions in Module 10.
Homework
Thank you !