资源简介

(共31张PPT)
Unit 1 The Changing World
Section A What changes have taken
place around you
课时1(1a-2d)
1. 掌握并正确运用词汇：bring about, rough, be covered with, sandstorm, farmland, shortage, lack, bush, root, soil, sandy, government, support, corn
2. 能介绍身边的变化：① We used to..., but now... ② There are more/fewer now...
Let’s read and discuss.
What changes have taken place in railway transportation in China over the past 20 years
train type: green train
speed: 120 km/h
service: toilet, boiled water
train type: high-speed train speed: 350 km/h
service: toilet, boiled water, air conditioner, Wi-Fi, power outlet,
food ordering
2005
2025
Trains have become faster, more comfortable and convenient.
Let’s read and discuss.
How did these changes happen
train type: green train
speed: 120 km/h
service: toilet, boiled water
train type: high-speed train speed: 350 km/h
service: toilet, boiled water, air conditioner, Wi-Fi, power outlet,
food ordering
2005
2025
Many Chinese scientists and engineers have worked hard to develop new technologies.
The photos show changes in Li Rui’s hometown over the years. What are the changes How do they make you feel
1a
Li Rui’s hometown was covered with sand many years ago. But now it is covered with beautiful trees. More and more people are living here. I’m amazed and I feel happy.
1. Why does George call Li Rui
2. When did George’s father last visit the place
3. What is the relationship between George’s father and Li Rui’s grandfather
Listen to a telephone conversation. Then answer the questions.
1b
He calls Li Rui because he and his father are going to visit
Li Rui’s hometown and he wants Li Rui to be their guide.
They are good friends.
He last visited the place about 20 years ago.
Listening Scripts
Hello, George.
Hi, Li Rui. Guess what! My father, Bob, and I are going to visit your hometown. Could you be our guide
Sure! I’d love to!
Wonderful! You know, my father’s last visit was about 20 years ago. He became a good friend of your grandfather.
Grandpa will be so happy. They haven’t seen each other for ages!
Yes, and my father really wants to see how the place has changed since he last visited.
Li Rui:
George:
Li Rui:
George:
Li Rui:
George:
Li Rui is now showing George and his father around her hometown. Listen to their conversation and complete the table.
1c
Past
· It took (1)_________ to reach the town.
· Going to school by bus took nearly (2)__________ over rough roads.
They used to (3)______________ to see a doctor.
They didn’t have any such places for (4)__________.
The hills were covered with (5)______.
half a day
40 minutes
have to travel far
shopping
sand
Li Rui is now showing George and his father around her hometown. Listen to their conversation and complete the table.
1c
Present
· With the new roads, it takes only (6)___________.
· Going to school takes only (7) __________.
The town has built a new (8) _______.
They now have a (9)___________ down the street.
They are now covered with (10) ____________.
an/one hour
15 minutes
hospital
supermarket
beautiful trees
Listening Scripts
What do you think of your trip so far
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.
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.
Life is much easier!
Not only that. We used to have to travel far to see a doctor, but now our town has built a new hospital.
Li Rui:
Bob:
Li Rui:
George:
Li Rui:
It takes/took (sb). + 时间 + to do sth.
做某事花了（某人）……时间。
sb. used to do sth.
某人过去常做某事
Listening Scripts
Great! And didn’t I see a supermarket down the street
Yes. We didn’t have any such places for shopping until 10 years ago.
But the biggest change is on the hills. They used to be covered with sand.
And now they have been covered with beautiful trees!
Bob:
Li Rui:
Bob:
Li Rui:
Going to school by bus took nearly 40 minutes over rough roads. (教材P2 1c)
rough /r f/ adj. 崎岖的
In the past, a rough path connected the two villages.
过去，一条崎岖的小路连接着这两个村庄。（作定语）
The mountain road is rough at first and becomes smooth as we go down.
这条山路起初崎岖不平，往下走就变得平坦了。（作表语）
用于形容表面高低不平，在句中作定语或表语，反义词为 smooth“平坦的”。
词义拓展 粗糙的 艰难的 大致的
rough hands 粗糙的双手 a rough time 艰难时期 a rough idea大致的想法
The hills were covered with sand. (教材P2 1c)
be covered with 被……覆盖
After the heavy snow, the whole mountain was covered with white snow.
大雪过后，整座山都被白雪覆盖着。
When spring comes, the garden is covered with green grass and colourful flowers. 春天来临时，花园里长满了青草和五颜六色的花。
主语通常为物，with后接具体的覆盖物。
cover...with sth. 用某物盖住……，主语通常为人。
Mum covers the table with a clean cloth.
妈妈用一块干净的布盖住桌子。
用法拓展
Discuss the changes in 1c. How do you think they happened
1d
I think the government has made an effort to change the town in many ways.
2a
Rank the following problems from 1 to 4, with 1 being the worst. Give your reasons.
sandstorms
water shortage
farmland shortage
lack of technology
1. water shortage 2. sandstorms 3. farmland shortage 4. lack of technology
Reasons: If there is not enough water, people can’t live or grow food well. Sandstorms hurt people’s health and damage crops. And not enough land means not enough food. Technology is important, but people can still work without it.
sandstorms (教材P3 2a)
合成词
sandstorm由sand与storm组合而成。英语中，由两个或两个以上的词合成一个新词，这种构词法叫作合成法。如：
snowstorm 暴风雪 thunderstorm 雷暴
greenhouse 温室 farmland 耕地
playground 操场 English-speaking 说英语的
water shortage lack of technology (教材P3 2a)
两者为同义词，均可作可数名词和不可数名词，常用于“There is no shortage/lack of...”结构，表示“不缺……”。
shortage / t d / n. 短缺 lack /l k/ n. 缺乏
There is no shortage/lack of delicious food in this small town.
这个小镇不缺美味的食物。
The company is facing a shortage/lack of skilled workers this year.
这家公司今年面临技术工人短缺的问题。
lack v. 没有；缺乏
He lacks courage to speak in public.
他缺乏在公共场合说话的勇气。
用法拓展
Listen to the conversation between George’s father and Li Rui’s grandfather. What problems in 2a did they mention
2b
They mentioned sandstorms and farmland shortage.
Listen again and fill in the table. How has the environment affected local lives
2c
Past · There used to be (1)__________ all the time, and the (2)_____ were getting smaller and smaller.
· Locals worked by (3)______.
sandstorms
fields
hand
Listen again and fill in the table. How has the environment affected local lives
2c
Action · Locals found a bush. It had (4)_____ roots that could (5)_____ the soil together.
· They began planting it in sandy (6)______ with the government’s support.
· They had (7)_________ to help.
long
hold
areas
machines
Listen again and fill in the table. How has the environment affected local lives
2c
Present · The corn fields are (8)______.
· They have planted many bushes and (9)______ since then.
· There are (10)______ sandstorms now and the environment is getting (11)______.
· It has improved local lives.
huge
trees
fewer
better
Listening Scripts
I’m amazed by how green your hometown has become!
Have you seen the corn fields outside of the town yet
Yeah! They’re huge!
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.
What did you do
Bob:
Grandpa:
Bob:
Grandpa:
Bob:
Listening Scripts
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.
Wasn’t it difficult to plant so many bushes
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.
Grandpa:
Bob:
Grandpa:
They began planting it in sandy areas, with the government’s support.
(教材P3 2c)
由“sand (n. 沙子) + -y (形容词后缀)”构成。
sandy / s ndi/ adj. 铺满沙子的；含沙的
We walked on the sandy beach for an hour yesterday.
昨天我们在沙滩上走了一个小时。
The soil in my garden is very sandy.
我花园里的土壤含沙量很高。
-y表示“充满……的；有……特性的”，通常加在名词后构成形容词。
dust n.灰尘 — dusty adj. 布满灰尘的
hair n.毛发 — hairy adj.毛茸茸的
词缀拓展
They began planting it in sandy areas, with the government’s support.
(教材P3 2c)
(1) [及物动词] support sb. in (doing) sth. 在（做）某事方面支持某人
support /s p t/ n. & v. 支持
You have to trust and support each other during matches.
在比赛期间，你们必须互相信任和支持。
We’ll support you in making your own decision.
我们将支持你自己做决定。
They began planting it in sandy areas, with the government’s support. (教材P3 2c)
(2) [不可数名词] with sb.’s support = with the support of sb. 在某人的支持下
support /s p t/ n. & v. 支持
With my teacher’s support, I finished the task successfully.
在老师的支持下，我成功完成了任务。
My parents always give me enough support during my growth.
在我成长的过程中，我的父母总是给我足够的支持。
词义拓展 养活 He works hard to support his family. 他努力工作以养活自己的家庭。
证实 The facts support our conclusion. 这些事实证实了我们的结论。
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 land has become...
It takes four hours _______ (travel) from Shanghai to Beijing by train.
The books are _______ (cover) with dust.
Sea buckthorn (沙棘树) grows on ______ (sand) soil.
一、用所给词的适当形式填空。
to travel
covered
sandy
二、完成句子，每空一词。
1. 在父母的支持下，我赢得了比赛。
I won the competition _____ _____ _______ _______.
2. 我过去常步行去学校。
I _____ _____ _____ to school.
with my parents’ support
used to walk
Key words
Expressions
rough, sandstorm, farmland, shortage, lack, bush, root, soil, sandy, government, support, corn
bring about, be covered with
We used to..., but now...
Sentence
1. 用下列句型介绍自己家乡近年的变化。
· We used to ..., but now ...
· There are more/fewer ... now.
2. 将本课所学内容整理成重点笔记。

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