资源描述
Unit 3 Language in use
【教学目标】
To use the points in Units 1 and 2;
To use the points in units 1 and 2 freely;
To make Ss learn about the environment pollution and how to protect the environment.
【教学重点】
To master the word, the numbers and the article.
【教学难点】
The using of the number and the article.
【教学方法】
PWP method, Formal and interactive practice
【教学手段】
A tape recorder, multimedia and some pictures
【教学过程】
Teaching Procedures:
Step 1 Language practice
To master the structure of the grammar
1. Beijing is a huge city.
2. It takes an hour to get there by bus.
Grammar: 冠词
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和零冠词。
一、不定冠词a, an的用法
1. 表示数量，泛指同类事物中的“任何一个”，含有“一”的意思。如：
Tom had an apple for breakfast this morning.
2. 表示某类人或物，此时的不定冠词一般不译为“一”。如：
A panda eats bamboo.
3. 表示数量，意为“每一”。如：
How often do you go swimming a week?
4. 用于某些抽象名词前，表示“一种；一场；一阵等”。如：
I have a headache.
注：不定冠词a常用于以辅音音素开头的单数可数名词前；an常用于以元音音素开头的单数可数名词前。
二、定冠词the的用法
1. 特指某（些）人或物。如：
I like the red clothes.
2. 特指上文提到过的人或物。如：
I have a camera. The camera is white and I like it very much.
3. 指世界上独一无二的事物。如：
the sun, the moon, the earth
4. 用于序数词、表示方位的名词或形容词最高级前面。如：
the first boy, in the north, the tallest boy
5. 用于表示乐器的名词前面。如：
play the piano
6. 用于姓氏的复数形式前面，表示“一家人”或“夫妇俩人”。如：
The Blacks are having a picnic now.
7. 与形容词连用, 表示某一类人或物。如：the rich, the old
8. 用于某些专有名词前面。如：
the Great Wall
9. 用于一些固定短语中。如：
in the morning, by the way
三、零冠词的用法
1. 表示节日、星期、月份、季节等的名词前面一般不加冠词。如：
on Teachers’ Day, on Monday, in September, in winter
注意：in the summer of 2015（表示特指，故加the）
2. 表示一日三餐的名词前面一般不加冠词。如：have lunch
3. 表示球类运动和棋类的名词与play连用时，一般不加冠词。如：
play basketball, play chess
4. 表示语言和学科的名词前面一般不加冠词。如：
David can speak Chinese very well.
History is Susan’s favourite subject.
5. 名词前面有指示代词或形容词性物主代词时，不再加冠词。如：
May I have a look at your dictionary?
6. 在一些固定短语中，名词前面用零冠词。如：
go to bed, go to school, by bus, at night
Step 2 Match the countries with their populations
1. Match the countries with their populations in groups.
1) China a) 4,437,000
2) the US b) 22,956,000
3) Australia c) 314,791,000
4) New Zealand d) 1,370,537,000
2. Read your answers to Activity 1 to the whole class.
3. Now listen and check.
Step 3 Learning to learn
To learn how to see a table and a chart
When 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?
Step 4 Read the chart and answer the questions
Read the chart and answer the questions.
1. Which city had the largest population in 2000?
2. Which city’s population will increase 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 will have the biggest population problem? Why?
Step 5 Write a, an or the where necessary
1. Read the passage carefully.
2. Then use the articles to fill in the blanks where necessary.
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.
Step 6 Complete the sentences with the correct form of the words in the box
First read the sentences and use the right form of the words from the box to fill in the blanks.
few good much small
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.
Step 7 Complete the diagram showing population problems
1. Read the diagram.
2. Use the words from the box to complete the diagram.
3. To get the answers from the Ss.
air city countryside hospital increase public service traffic water
Problems of Arnwick
People move from _______________
People arrive in _________
Problems: Population __________
Environmental problems Health problems Problems for the government
Examples: Examples: Examples:
__________________ __________________ __________________
__________________ __________________ __________________
__________________ __________________ __________________
Step 8 Complete the passage with the correct form of the words from the box
1. Read the passage and master the details in the passage.
2. Use the words to fill in the blanks.
3. Get the right answers from the Ss.
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’s so much (5) ______ on the roads that in some cities the air is heavily polluted. We should work harder to protect our world.
Step 10 Complete the sentences with the correct form of the expressions in the box
1. Read the sentences and understand the meanings.
2. Choose the correct form of the expressions.
all over the world closed down
in the future it takes not … any more
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 pollution in the past but it’s _____ a problem _________.
Step 11 Listen and choose the best summary
To let the students master the summary.
a) It’s cheaper to share a car than to have a personal car.
b) People in a car club don’t 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.
Step 12 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 / don’t 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 / aren’t healthier.
Step 13 Work in pairs and discuss this question
Do you think car clubs would be popular in China? Why? Why not?
Step 14 Around the world
To know about the world population and water.
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.
Step 15 Writing
1. To prepare to make your graph in groups.
2. To make your graph and present your graph to the class.
3. Write a paragraph to describe your graph.
Step 16 中考链接
( ) 1. We can live a better life if we create ______ less polluted world.
A. the B. an
C. a D. 不填 (2014江苏镇江)
( ) 2. —Would you like ______ new blue T-shirt, Mary?
—Sorry, Mom. I prefer ______ orange one.
A. a; a B. a; an
C. an; a D. an; an (2014广西来宾)
( ) 3. —Have you seen the film Dad, where are we going?
—Yes. It’s ______ interesting one.
A. a B. an C. the D. / (2014云南曲靖)
( ) 4. —What’s this in English, Maria?
—It’s ______ map.
A. a B. an C. the (2014福建漳州)
( ) 5. The little girl began to play ______ violin at the age of five.
A. a B. the C. 不填 (2014湖南永州)
( ) 6. —What ______ useful program it is!
—Yeah. It tells us how to play ______ violin.
A. a; the B. an; the
C. the; a D. an; 不填 (2014湖北随州)
( ) 7. —What’s ______ matter with you?
—I have ______ toothache.
A. a; the B. the; /
C. /; a D. the; a (2014甘肃平凉)
( ) 8. —What do you think of Wang Wei?
—He is ______ honest boy, and always helps ______ old.
A. a, the B. an, the C. the, an (2014四川遂宁)
Keys: CBBAB ADB
Step 17 Summary
Let the students say what they have learnt in class by themselves.
1. 冠词的用法。
2. 重点短语:
all over the world close down in the future it takes
not … any more
Step 18 Homework
你认为自己应该为严重的水污染做哪些事, 写一篇60词左右的短文。
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