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(共24张PPT)
Unit 1 The Changing World
Section A 1a-2d
Learning goals
1.通过对话中关于交通、医疗、购物、环境等方面过去与现在的对比。 进一步掌握 used to 结构用法。
2.能根据听力内容完成任务，能正确使用 used to 与 now过去与现在对比。
3.能讨论家乡各方面变化产生的原因而且能提出改善环境问题个人想法。
Unit 1 The Changing World

BIG
Question
What brings about changes
In this unit, you will
1.Talk about how things are different from the past.
2.Discuss how changes have influenced our lives.
3.Find out how changes happened.
4.Explore what you can do for your hometown.
找出
带来，引起
与...不同
谈论
为你的家乡做...
Look and share
1.How are these two photos different
2.How has this place changed over time
3.Why do you think this place has changed so much
随着时间推移
Section A What changes have taken place around you
changes in Li Rui’s hometown
1a
in the past
now
过去常是
有
长满了
buildings
rough
trees
崎岖的
...
3. There used to be ... but now...
Listening
Iisten to a telephone conversation.Then answer the question.
1b
Look at the picture and predect:
1. Why does George call Li Rui
2. What might they talk about
Li Rui's hometown
China
George and his father visit Li Rui's hometown .
Li Rui is showing George and his father around her
hometown.Listen to their conversation and complete the table.
1c
带某人参观
有了新建的公路
Listening
half a day
an hour
40 minutes
15 minutes
travel far
hospital
shopping
supermarket
sand
beautiful trees
花
长满了
乘公共汽车去学校
在崎岖不平的路上
走很远的路
沿街
1d
Li Rui: What do you think of your trip so far
Bob: Amazing! When I first visited here,it took half a day to reach the town. Now, with the new roads, it takes only an hour.
Li Rui: Yes. When I was a child, the bus took nearly 40 minutes over rough roads to get to school. Now, it takes only 15 minutes.
George: Life is much easier
1d
Li Rui: Not only that. We used to have to travel far to see a doctor, but now our town has built a new hospital.
Bob: Great! And didn't I see a supermarket down the street
Li Rui: Yes. We didn't have any such places for shopping until 10 years ago .
1d
Bob: But the biggest change is on the hills. They used to be covered with sand.
Li Rui: And now they have been covered with beautiful trees.
Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons.
2a
First,I think the difficult environment is the worst.Because a bad environment can cause many problems and make people's lives very hard.
The second is sandstorms.Sandstorms are terrible.They can cover the land,hurt people's health and make it hard to travel outside.
The third is farmland shortage.Without enough farmland,farmers can’t grow enough food for people.
Finally,lack of technology is No.4.It is a problem,but we can learn and develop new technology to solve the problems step by step.
Listen to the conversation between George’s father and Li Rui’s grandfather. What problems in 2a did they mention
2b
There used to be sandstorms all the time... There are fewer sandstorms now...
The fields were
getting smaller
and smaller.
At the beginning, we worked by hand.
sandstorms
difficult environment
farmland shortage
lack of technology
Listen again and fill in the table. How has the environment affected local lives
2c
sandstorms
fields
hand
long
hold
areas
machines
huge
trees
fewer
better
影响当地的生活
Listen again and check the answers
2c
Bob: I’m amazed by how green your hometown has become!
Grandpa: Have you seen the corn fields outside of the town yet
Bob: Yeah! They’re huge!
Grandpa: There used to be sandstorms all the time, and the fields were getting smaller and smaller.Then, after one big sandstorm, we decided to do something.
Bob: What did you do
Grandpa:We found a small bush. It had long roots that could hold the soil together. We began planting it in sandy areas. The government provided support too.
Bob: Wasn’t it difficult to plant so many bushes
Grandpa: Yes, it was. At the beginning, we worked by hand. Later, we had machines to help. We have planted many bushes and trees since then. There are fewer sandstorms now and the environment is getting better. It has also improved
our lives. Everyone has become richer and happier.
Discuss how the problems in 2b were solved.
2d
A: The area used to be covered with sand.
B: What did they do to solve this problem
A: They planted bushes and trees.
The government also gave support.
B:Was it easy to plant so many bushes
A: No,it wasn't. They worked by hand at first, and later used machines.
B: How is the environment now
A: They have planted lots of bushes and trees. There are fewer sandstorms,and the land has become much greener and better...
Language points
1.It took half a day to reach the town.（P2-1c）
到达镇上花费半天时间。
It takes (sb.) some time to do sth.
做某事花费（某人）一段时间
其中it为形式主语，真正的主语是后面的动词不定式（短语）
拓展：人+spend (s)+时间+doing sth
人+spend (s)+时间+on sth
1...1
1. I two hours on my homework every day.
A. take B. spend C. cost D. pay
2. 根据汉语意思完成句子。
Linda 花了两个小时跟Andy沟通。
Linda two hours with Andy.
Language points
2.The land used to be dry.土地过去常是干燥的。(P2-1a)
辨析：used to do sth,be used to do sth与be used to doing sth
used to do sth 过去常常做某事 主语为人或物 表示过去经常发生的动作
be used to do sth 被用来做某事 主语多为物 强调某物的用途，与be used for doing sth.同义
be used to doing sth 习惯于做某事 主语为人或物 表示过去或现在的习惯性 动作，与get used to doing sth.同义
1. He （以前）very shy and afraid to speak in public.
2.This big hall （被用来举办）different kinds of school activities.
3.My uncle （习惯散步）for an hour after dinner every day.
填空
used to be
is used to hold
is used to walking
Language points
3.Going to school by bus took nearly 40 minutes over rough roads.(P2-1c)
坐公共汽车上学，在崎岖的路上花费将近40分钟。
动名词(短语)作主语going to school by bus是动名词短语，在句中作主语。单个动名词(短语)作主语，谓语动词用单数形式。
1、根据汉语意思完成句子。
帮助他人让世界更温暖。
Helping others makes the world warmer.
2、—Using public chopsticks _____ necessary when eating with others.
—That's right.
A.is B.are C.was D.were
Language points
5.There used to be sandstorms all the time, and the fields were getting smaller and smaller.
过去一直有沙尘暴，而且田她变得越来越小。(P3-2c)
比较级+and+比较级 “越来越…… ” ；
通过在单词前加more构成的比较级，
用“more and more+形容词/副词原级”表示“越来越……”。
1、根据汉语意思完成句子。
（1）如我们保护环境，空气将会变得越来越清新。
If we protect the environment,the air will be fresher and fresher.
（2）我们的城市正变得越来越美丽。
Our city is becoming more and more beautiful.
2、(2025·广东汕头三模)Fast walking is becoming____according to a recent survey.
A.popular and popular B.more popular and more popular
C.popularer and popularer D.more and more popular
homework
1. 抄写本课全部生词；复习本课重要的单词，短语，句子和对话。
2. 思考 3 条改善环境的办法，仿照 2d 格式编写对话。

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