课件45张PPT。9PopulationModuleUnit 3
Language in use
1. Beijing is ___ huge city.
2. It takes ___ hour to get there by bus.
3. That’s almost ___ ____(五分之一) of the world’s population.
4. ____ small local school in Parkville closed down five years ago.
5. That makes over 131.4 ______ (百万) birth a year.aanone fifthThemillionReview6. But in the future, China’s population won’t grow so fast, because ____ families are getting smaller.
7. It is clear that Arnwick needs more ____ schools, buses and hospitals.
8.They had ___ small house, close to fields and hills.
9.In fact, this is just ___ story.
10. Do we need more big ___ cities like this?
11. As we say, __ _______ (一百) people make __ ________(一千) problems.//aa/a hundreda thousand冠词的分类一. 不定冠词(a/an)的用法
a用在以辅音音素开头的单词前;而an用在以元音
音素开头的单词前．
an hour 一小时 an honest man 一个诚实的人
a university 一所大学
a useful book 一本有用的书
an umbrella 一把雨伞
an “f/h/l/m/n/x/s”
an “a/i/e/o”
a “u”
歌曰：
不定冠词两变体，用a或an都表“一”；
可数名词首次提，何人何物不具体；
某类人、物任一个，有时还要表“每一”。
l. 表示数量有“一”的意思，但数的概念没有one强。
I have a mouth, a nose and two eyes.
2. 第一次提到某人或某物，不定冠词起介绍作用。
Yesterday I saw an old man. He’s Tom’s father.
3. 表示某个人或事物，但不具体说明何人或何物。
A boy was waiting for you.
4. 表示人或事物的某一类。
A horse is a useful animal.
5. 表示“每一”的意思，相当于every。
Mr. Green goes to the cinema once a week．
6. 序数词前面可以加不定冠词a／an，表示“再一个
（次）”，“又一个（次）”的意思，相当于another。
Can you try a third time？你能试第三次吗？（表明
已试过两次了）
He is a sixth student to speak.他是第六个发言的学生。
7. 用在某些物质名词前，表示“一阵”、“一场”。
a heavy rain 一场大雨，a strong wind一阵大风 二. 定冠词的基本用法
歌曰：定冠词用法有规律，防止遗忘很容易。
特指双方都熟悉， 上文已经被提及。
世上无二仅独一， 序数词和最高级。
山河海岛建筑物， 姓氏复数奏乐器。
少数形表人一类， 方位名词须牢记。
普构专有惯用词， 试用此诀有效率。 l. 特指某人或某物。
The book on the desk is mine．
2. 指双方都知道的人或事物。
Where are the new books，Jim？
3. 指上文提到过的人或物。
There is an old woman standing there. The old
woman looked worried.
4. 用在世上独一无二的事物名词前。
the sun, the sky, the earth, the world, etc.
5. 用在序数词和形容词最高级前。
The third one is carrying the fewest of all.
6. 用在山脉、江河、海洋、岛等名词前。
the Himalaya Mountains, the Yellow River,
the Red Sea, the Taiwan Island, etc.7. 用在某些建筑物名词前。
the White House, the Great Hall of the People
8. 用在姓氏复数形式之前,表示“某某一家”或“某某夫妇”。
the Greens, the Blacks, etc.
9. 用在乐器名词前。
the piano, the violin, etc.
10. 用在少数名词化的形容词前表示一类人或事物。
the old, the poor, the blind, etc.
11. 用在表示方向位置的名词前。
in the east, on the right, in the centre, etc.
12. 用在由普通名词构成的专有名词前。
the People’s Republic of China, etc.
13. 用在某些习惯用语中。
in the morning, by the way, look the same, etc.
三. 零冠词的基本用法
歌曰：下列情况不用冠，名词之前代词限；
专有名词不可数，球类学科与三餐；
复数名词表泛指，节日月份星期前；
颜色语种和国名，称呼习语及头衔。1. 名词前已有作定语的指示代词、物主代词、名词
所有格或不定代词等限定词。
The letter is in her bag.
I have some questions.
2. 专有名词、物质名词和抽象名词等不可数名词前。
如：China，water，music, etc．
3. 球类活动、学科名词、一日三餐前。
We have English and math every day．
4. 复数名词表示泛指。They are workers．5. 节日、星期、月份、季节名称前。
如：June 1 is Children’s Day．
6. 表示颜色、语言、称呼语和官职、头衔的名词前。
Headmaster Li came to Class One just now.
7. 某些固定词组或习惯用语中。
at night, go to school, by bus, etc.
四. 定冠不定冠 意思差千万
有些名词前用冠词或不用冠词，其意义有所不同。
如：
1)at table在吃饭；
at the table在桌子旁
2)in class在上课；
in the class在班级中
3)go to school去上学;
go to the school到那所学校去
4)go to bed上床睡觉;
go to the bed到床那边去
5)in front of在…的前面 ;
in the front of在…的前部.
在英语中，对于万以上的数字，我们改如何表达呢？这就要记住英语数字读法特点。以下面一个数字为例：6，500，431，729hundredthousandmillionbillion注意每三个数为一个单位，按照百、
十、个向下读。大数字的表达方法
英语分数的表示法：
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.?三分之二的学生考试及格了。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．
大约2／3的学生都参加了会议。 1. Work in pairs. Match the countries with their
populations. 1 China a) 4,437,000
2 the USA b) 22,956,000
3 Australia c) 314,791,000
4 New Zealand d) 1,370,537,000When you see a table or a chart, look carefully at the labels and graphs to make sure that you understand what they are showing. Look at the chart below. What is it comparing? What can you conclude?Learning to learn2. Read your answers to Activity 1 to the whole
class.China has a population of…Now listen and check.3. Read the chart and answer the questions.1 Which city had the largest population in 2000?
2 Which city’s population will increase the most
from 2000 to 2025?
Tokyo had the largest population in 2000.Mumbai's population will increase the most
from 2000 to 2025. 3 Which city will have a larger increase in its
population, New York or Mexico City?
4 Which city / cities do you think will have the biggest population problem? Why?Mexico city.I think Mumbai will have the biggest population
problem because its population will increase
the fastest.4 Complete the passage with a, an or the
where necessary. Mina is (1) ____eighteen-year-old girl. She has
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.aanathetheaaaa/5 Complete the sentences with the correct
form of the words in the box. few good much small1 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.bettersmallermorefewer6 Complete the diagram showing population problems. Use the words in the box to help you.air city country hospital increase public service traffic waterProblems of ArnwickProblems: Population___________People arrive in _________the cityincreasesPeople move from_______the countrysideEnvironmental problems
Example:_____________
_____________
______________
______________Health problems
Example:
_______________
_______________Problems for the government
Examples:
_________________________________
_________________________________
_________________________________①air pollution
water pollution
too much traffic
rubbish③②not enough
hospitalsneed more schools and buses
need better public services
need more police to protect people7 Complete the passage with the words in the box. countryside pollution population
space trafficOur 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 populationpeople 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.countrysidespacepollutiontrafficall 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.
all overthe worldin the futureclosed down4 Usually an hour to get there by bus.
5 The town had a lot of population in the past
but it is a problem .it takesnot any more9 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.11 Work in pairs and discuss this question.Do you think car clubs would be popular in China? Why / Why not?In my opinion, car clubs…Around the world 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 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.Making a graph Module task: Step 1: Work in groups. Prepare to make your 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.Step 2: 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.
Step 3: Write a paragraph to describe your graph.14 Write a paragraph to describe your graph.
Then Present your graph to the class.Pair workExercises Ⅰ. 根据句意用合适的冠词(a/an/the)填空，不需要的划“ / ”
1. We hav e music on _______ Friday.
2. His grandpa is ________ 80-year-old man, but he is very healthy.
3. I hope I can have ________ chance to visit Beijing.
4. Shanghai is ________ biggest city in China.
5. Jim was ________ first student to get to sch ool this morning.
6. This flat is too small for them. They need ________ bigger one.
7. We often do sports after class, and I like to play ________ basketball.
8. I saw ________ accident. ________ car hit ________ tree.
9. Which is bigger, ________ sun or ________ moon?
10. Do you like ________ music of the film Titanic?
Ⅱ. 根据要求完成下列各题，每空一词
1. The city has 200,000 people. (划线提问)
________ ________ ________ ________ the city?
2. To live in the countryside is cheap. (同义句)
________ cheap ________ ________ in the countryside.
3. This is a big city. It has about 600,000 people. (同义句)
This is a big city ________ about 600,000 people.
4. My home town has 13 million people. (同义句)
My home town has ________ ________ ________ 13 million.III. 用英语“读”出下列数字。
如：485 → four hundred and eighty-five
1. 846 →
2. 4,517 →
3. 59,248 →
4. 8,326,000 →
5. 9,368,600,000→ eight hundred and forty-six four thousand, five hundred
and seventeen fifty-nine thousand, two hundred and forty-eight eight million, three hundred and twenty-six thousand nine billion, three hundred and sixty-eight million, six hundred thousandHomework Make a graph and share with your classmates.
Recite all the words and phrases of this unit.
