Module 9 Population Unit 3 Language in use 课件(共22张PPT)

(共22张PPT)
Module9 Population
Unit 3 Language in use.
冠词是置于名词之前，用以说明名词所指的人或事物的一种虚词。
冠词有三种形式：
不定冠词 a, an,
定冠 the
零冠词
冠词
不定冠词 a / an的用法：
1. a 用以辅音音素开头的单词前，an 用以元音音素开头的单词前。
a book, a table, an elephant, an orange
2. 表示数量“一”，意思与“one”接近，但数的概念没有one强。
The little girl played a whole day outside.
3. 用于首次提到的某人或某物前，表泛指。
A teacher from England will teach us English.
4. 用于可数名词的单数前，表示一类人或物。
A tiger is very dangerous.
5. 表示某类人或事物当中的任何一个，相当于one，泛指人或事物的类别。
He is a ball player.
6. 表示“每一个”，相当于every。用在表示时间，速度，价格的名词前。
You should take this medicine three times a day.
7. 表示 “某一” 。
A Mr. Wang is waiting for you.
定冠词 the 的用法
1. 定冠词是指特定的人或物，用于特指的名词前。
The book is mine.
2. 表示上文提到的或说话双方都知道的人或物。
I heard a report. The report was about war.
3. 用于序数词、形容词最高级以及对两者进行比较时起特定作用的比较级前。
It’s the most interesting book I have read.
I have two sisters. The elder one is a doctor.
4. 世界上独一无二的事物前常用the。
The moon goes around the earth.
5. 在姓的复数形式前加the，表示一家人或夫妇二人。
the Greens 格林一家人或格林夫妇
6. 用于某些形容词前表示一类人或事物。
the rich, the poor, the old
7. 用于江河、山脉、湖泊、岛屿、杂志和报纸等专有名词前。
the Changjiang River, the Great Wall, the Summer Palace
8. 用于由普通名词构成的专有名词前。
the United States
9. 用于乐器名称前。
play the piano / violin
零冠词的用法
1. 复数可数名词前，表示人或物的类别，或泛指不定量的人或物。
There are pens and books on the desk.
2. 当名词前有物主代词、指示代词、不定代词及名词所有格等修饰时。
She is our math teacher.
No one can get this book.
3. 交通工具、学科名词前。
by boat, on foot I like chemistry.
4. 球类运动、棋类游戏及语言名称前。
He prefers to play football.
5. 季节、月份、星期、节日、一日三餐等名词前。
in spring, on Monday，Children’s Day is coming.
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
the
a
a
the
a
a
a
a
Complete the passage with a, an or the where necessary.
数的表达
一、分数的表达
用“基数词＋序数词”表示，其中基数词表示分子，序数词表示分母。分子除用one外，也可用a；如果分子大于1，分母要用复数形式。
Two thirds of the students have passed the exam.
注意：1／2不能说a (one) second，而要说a (one) half。
1／4 和 3／4可以说 a (one) fourth 和three fourths，但常用 a quarter和 three quarters表示。
若它们在句子中作主语，则谓语动词是用单数还是复数取决于名词，即与分数所修饰的名词保持一致。
About two thirds of the students attend the meeting．
6，500，431，729
hundred
thousand
million
billion
注意每三个数为一个单位，按照百、
十、个向下读。
二、大数字的表达
How to read the following numbers
eleven thousand two hundred and thirty four
two thirds
one fifth
one hundred and fifty-five thousand, seven hundred and twenty-one
three hundred and twenty-six million, four hundred and fourteen thousand, seven hundred and eighteen
2/3
1/5
11,234
155,721
326,414,718
4,437,000
22,956,000
314,791,000
1,370,537,000
Match the countries with their populations. (P76/1)
1 China
2 the US
3 Australia
4 New Zealand
Read the chart and answer the questions.
Which city had the largest population in 2000
Which city’s population will increase the most from
2000 to 2025
Which city will have a larger increase in its population, New York or Mexico City
Which city/cities do you think will have the biggest population problem Why
1. Tokyo had the largest population in 2000.
2. Mumbai’s population will increase the most from 2000 to 2025.
3. Mexico City will have a larger increase in its population.
4. I think Mumbai will have the biggest population problem because its population will increase the fastest.
5 Complete the sentences with the correct
form of the words in the box.
few good much small
1 We believe the schools in Arnwick are very
good, and we are 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
more
fewer
6 Complete the diagram showing population problems. Use the words in the box to help you.
air city country hospital increase public service traffic water
Problems of Arnwick
Problems: Population___________
People arrive in _________
the city
increases
People move from_______
the countryside
Environmental problems
Example:_____________
_____________
______________
______________
Health problems
Example:
_______________
_______________
Problems for the government
Examples:
_________________________________
_________________________________
_________________________________
①
air pollution
water pollution
too much traffic
rubbish
③
②
not enough
hospitals
need more schools and buses
need better public services
need more police to protect people
7 Complete the passage with the words in the box.
countryside pollution population space traffic
Our world is facing many problems. Two of the biggest are increasing population and pollution.
The (1) _____________of the world is increasing quickly. Why is this happening Because more babies are born every year and people also live longer. 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 is so much (5) ________ on the roads that in some cities the air is heavily polluted. We must work harder to protect our world.
population
countryside
space
pollution
traffic
all over the world closed down in the future
it takes not… any more
8 Complete the sentences with the expressions in the box.
1 Growing population is a problem___________.
2 The population of China 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 population in the past but it is a problem .
all over the world
in the future
closed down
it takes
not
any more
9 Listen and choose the best summary.
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.
10 Listen again and choose the correct answer.
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.