资源简介

(共37张PPT)
Unit 8
Protecting the environment
Lesson 3 The green miracle
学习目标
能掌握本课时单词和短语。
能读懂文章，了解塞罕坝从荒芜之地变为世界最大的人工林的历程。
能掌握动词不定式作目的状语的用法。
Look at the pictures of the same place and answer the questions.
A What’s the difference between the two pictures
B What do you think led to the difference
Lead-in
新课讲授
A What’s the difference between the two pictures
B What do you think led to the difference
The difference between the two pictures is that one picture shows a place with no plants or trees , and the other picture shows the same place with many trees and plants growing.
I think the difference occurred because people might have planted trees and taken care of the land.
Green miracle in Saihanba
Read the passage and complete the timeline.
now
1962
around the late 1950s
People could _________ a tree or a flower anywhere
The local government decided ________________________________________________
Saihanba is ___________ _____________________
__________________.
Reading
Saihanba, located in the far-northern part of Hebei Province, became a green miracle.
Around the late 1950s, you could hardly see a tree or a flower anywhere in Saihanba. In 1962, the local government decided to change this dead land into a forest. To carry out the task, a group of 369 foresters, mostly in their 20s, was organised.
“At the very beginning, I did not realise that the working conditions would be so harsh and the weather so bad,” said Zhao Zhenyu, one of the first-generation foresters. But they never gave up. The foresters carried on, overcoming the challenges of the land. They used science and technology to help trees to survive harsh conditions. The Saihanba people worked hard with their hearts and minds for more than half a century.
The Saihanba Spirit inspired the foresters to complete the difficult task. Saihanba is now the largest human-made forest in the world. It plays an important role in environmental protection. People can enjoy fresh air, birds singing, and beautiful scenery there.
now
1962
around the late 1950s
People could _________ a tree or a flower anywhere
The local government decided ________________________________________________
Saihanba is ___________ _____________________
__________________.
hardly see
to change this dead land into a forest
the largest human-made forest in the world
1. What difficulties did the foresters face at the very beginning
Read the passage again and answer the questions.
the difficulties
the harsh working conditions
no trees
no flowers
the bad weather
...
2. How did they solve the difficulties
The solutions
used science and technology
organised a group
worked hard
...
3. What achievements do they have in Saihanba now
The achievements
play an important
role in environmental
protection
the largest human-made
forest in the world
fresh air
birds singing
beautiful scenery
...
Think and summarize
Think and summarize the Saihanba Spirit.
The Saihanba Spirit
never give up
carry on
overcome the challenges
use science and technology
work hard with hearts and minds for more than half a century
...
1.Around the late 1950s, you could hardly see a tree or a flower anywhere in Saihanba.
大约在20世纪50年代末，在塞罕坝几乎看不到一棵树、一朵花。
hardly 作频度副词，意为“几乎不；几乎没有”，常与can、could 连用。
e.g. He hardly ever arrives late, always being early.
他几乎从不迟到，总是提前到达。
Hardly had I sat down when the phone rang.
我刚坐下，电话就响了。
Language points
常见用法：hardly ever 很少；几乎从不
hardly...when... 刚……就……
词义辨析：hard和hardly
hardly 副词 “几乎不”，表示否定含义
hard 副词 努力地；猛烈地
形容词 困难的；坚硬的
e.g. I can hardly hear you over the noise.
噪音太大，我几乎听不清你说话。
She had a hard life.
她过着艰苦的生活。
You should study hard if you want to get good grades in the exam.
如果你想在考试中取得好成绩,就应该努力学习。
2. In 1962, the local government decided to change this dead land into a forest. 1962年，当地政府决定将这片废弃的土地变成森林。
(1)government n. 政府
e.g. The French government didn’t sign the agreement.
法国政府没有签署此项协定。
govern v. 统治；管理；影响
e.g. They were utterly unfit to govern.
他们完全不胜任管理。
(2)change …into… 把……变成…… = turn …into…
e.g. We changed the classroom into a party room.
我们把教室变成派对房间。
The magician turned the rabbit into a hat.
魔术师把兔子变成了一顶帽子。
(3)dead adj. 死气沉沉的；无生命的
e.g. The tree lost all its leaves and now it looks dead.
这棵树掉光了所有的叶子，现在看上去死了。
反义词：alive adj. 意为“活着”。
e.g. The fish in the tank are all alive and swimming happily.
鱼缸里的鱼都活着，游得很开心。
辨析：dead, die, death 与dying
dead 形容词，强调的是“死”的状态，意为“死的；无生命的”。
die 不及物动词，强调的是“死”的动作，意为“死；去世”，一般指因生病、负伤等原因死去。
death 抽象名词，意为“死；死亡”，通常作不可数名词。
dying 形容词，表示“垂死的；将死的”。the dying 临终者
(4)land ①n.土地；陆地
常用搭配：on land 在陆地上 by land 经陆路
e.g. There are many animals living on land.
陆地上生活着许多动物。
To travel by land takes much longer than by air.
走陆路比坐飞机需要的时间长得多。
e.g. Attention, please! The plane will land in ten minutes.
大家请注意! 飞机将在十分钟后降落。
They were the first men to land on the moon.
他们是首批登上月球的人。
②v.着陆
其后常跟介词in 或on。反义词组为take off（起飞）。
3.At the very beginning, I did not realise that the working conditions would be so harsh and the weather so bad.
一开始，我没有意识到工作条件会如此艰苦，天气会如此恶劣。
(1)分析结构: 这是一个复合句。At the very beginning 是介词短语作时间状语。I did not realise 是主句；that ... so bad是宾语从句。在主句中：I（主语）+ did not realise（谓语）；在从句中：the working conditions（主语）+ would be（系动词）+ so harsh（表语）， and the weather so bad 是并列结构，与the working conditions would be so harsh并列。
e.g. The employees have good conditions of service.
雇员有良好的工作条件。
(2)condition n. 条件；状况
拓展：
be in (a) bad / good condition
living / working condition
mental / physical condition
处于糟糕的/ 良好的状态
生活/工作条件
精神/身体状况
4.They used science and technology to help trees to survive harsh conditions. 他们利用科学技术帮助树木在恶劣条件下生存。
(1)technology n.技术；工艺
e.g.Future technology may solve water pollution.
未来技术可能解决水污染问题。
technological adj.技术的
e.g.This factory uses technological machines.
这家工厂使用技术型机器。
(2)survive v.存活；幸存；艰难度过
e.g. I didn’t know whether I could survive.
我不知道我能否幸存下来。
Fish cannot survive out of water.
鱼离开水无法存活。
5. The Saihanba people worked hard with their hearts and minds for more than half a century. 塞罕坝人民用他们的心血和智慧努力工作了半个多世纪。
century n.世纪；百年
e.g. It’s a building that has survived for over five centuries.
这是一座历经五个多世纪而留存下来的建筑。
For centuries, people have been using natural materials to build houses.
几个世纪以来，人们一直使用天然材料建造房屋。
century 的复数形式为 centuries。
in the＋序数词＋century 在……世纪
e.g.He is one of the greatest writers in the 21st century.
他是 21 世纪最伟大的作家之一。
6.The Saihanba Spirit inspired the foresters to complete the difficult task. 塞罕坝精神鼓舞着护林人完成了艰巨的任务。
(1)inspire v. 鼓舞；激发
inspire sb to do sth 鼓舞/ 激励某人做某事
e.g. She thinks the story will inspire others to help.
她认为这个故事会激励他人伸出援手。
拓展：inspiring adj. 鼓舞人心的
inspiration n. 灵感；鼓舞人心的人（或事物）
e.g. Last year’s school play was truly inspiring.
去年的校园剧非常鼓舞人心。
We love the museum because it's full of inspiration.
我们喜欢这个博物馆，因为它充满灵感。
(2)complete ①v. 完成；结束
e.g. After much effort, my work was finally completed.
经过多番努力，我终于完成了工作。
②adj. 完全的
e.g. I understand what you said completely.
我完全明白你说的话。
Pay attention to the parts in yellow.
To carry out the task, the government organised a group of 369 foresters.
The Saihanba Spirit inspired the foresters to complete the difficult task.
We use the to-infinitive to express purpose.We also use the to-infinitive after certain verbs. Some verbs are followed by a direct object and then the to-infinitive.
Grammar focus
动词不定式作目的状语
除了作宾语之外，动词不定式还可以在句中作目的状语，表示行为动作的目的。不定式既可放在句首，也可放在句尾。
· He went to the supermarket to buy a pen.
他去超市买了一支钢笔。
· To get to school on time, he left home without breakfast.
为了准时到校，他没有吃早饭就离开家了。
动词不定式作目的状语，表示“做某事是为了什么”
拓展：动词不定式作目的状语，除了直接使用to do sth. 外，还可用in order to do sth. 和so as to do sth. 来表示，其否定形式为in order not to do sth.；so as not to do sth.。
· He closed the window in order to stay warm.
他关上窗户取暖。
· In order not to miss the early bus, he got up early in the morning. 为了不错过早班车，他一大早就起床了。
· They came in quietly so as not to wake up the children.
他们悄悄地进来，以免吵醒孩子们。
拓展：to/in order to/so as to 之间的转换
· He got up early to catch the early bus.
=He got up early in order to catch the early bus.
=He got up early so as to catch the early bus.
=To catch the early bus, he got up early.
=In order to catch the early bus, he got up early.
他为了赶上早班车早早起床。
Jenny: Do you know about Saihanba
Li Ming: Yes. It used to be a deserted land around the late 1950s.
Jenny: Really That’s hard to imagine. What happened next
Li Ming: _____, the government organised many foresters and started planting trees.
Read and complete the conversation.
Practice
A. to survive harsh conditions
B. to visit it someday
C. To change the situation
C
A. to survive harsh conditions
B. to visit it someday
C. To change the situation
Jenny: Did they meet any difficulties
Li Ming: Of course. The working conditions were so harsh and the weather was bad. But scientific and technological methods helped
trees _____.
Jenny: How brave the foresters were! What is Saihanba like now
Li Ming: Nowadays, Saihanba is not only the largest human-made forest but also a popular tourist spot.
Jenny: Wow, I want _____.
A
B
一、根据汉语提示填写单词
1. It is a great __________ (奇迹).
2. I _________ (几乎不) watch TV at weekdays.
3. It was a ___________ (无生命的) land.
4. The _______________ (政府) took swift action.
5. It was good to be back on ___________ (陆地).
6. His father was a great ____________ (林务员) ten years ago.
当堂检测
miracle
hardly
dead
land
forester
government
二、单项选择
1．Together with the government, many local people around the reserve are doing what they can ________ wild animals.
A．save B．to save C．saving
2．Our government has taken many measures ________ the product quality.
A．controlling B．to control C．controls
3．________ too much plastic is bad for the Earth. ________ the Earth, we should use paper bags.
A．Use; To protect B．Using; Protecting C．Using; To protect
4．Penguins huddle (依偎) together ________ keep warm in the cold weather.
A．for B．to C．because
5．You can surf the Internet ______ more about Craig Kielburger.
A．to know B．know C．knowing
B
B
C
B
A
6．—Why did he return home to be a village teacher
—________ the education of the countryside.
A．Develop B．Developing C．To develop
7. Chinese athletes did what they could ________ in the Paris Olympics.
A．compete B．competed C．to compete
8．________ healthily, Lisa gets up early to do some sports and drinks a cup of milk every day.
A．Grow up B．To grow up C．Growing up
9．It’s kind ________ you to go out of your way ________ us feel at home.
A．for; to make B．of; making C．of; to make
10．Mom makes me eat an apple every day ________ the doctor away.
A．keeps B．is kept C．to keep
C
C
B
C
C
Homework
从网上搜寻更多关于沙漠植树造林感人故事，绘制手抄报，张贴到班级展示墙和大家分享。
围绕环保行动，写三个含有动词不定式作目的状语的句子。
预习Unit 8 Lesson 4.

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