资源简介

(共23张PPT)
英
英
语
语
Unit 3
We Are Part of Nature
You’ll be able to:
1. describe the ecosystem;
2. talk about environmental protection;
3. design a flyer.
Look at the picture and discuss:
1. Where are they
2. How can we live in harmony with nature
目录
Contents
01
Warming up
02
Listening & Speaking
03
Reading & Writing
04
Grammar in Use
05
More Activities
06
Around the World
07
Fun Time
08
My Progress Check
03 Reading & Writing
Learn the words
prairie / pre ri/ n.
（北美洲的）大草原
grassland / ɡrɑ sl nd/ n. 草原
beneath /b ni θ/ prep.
在……下面
stretch /stret / n.
一片（地域或水域）
snake /sne k/　n. 　蛇
glide /ɡla d/ v. 滑行；滑动
rabbit / r b t/ n. 兔子
soil /s l/ n. 土壤；土地
rock /r k/ n. 石头
climate / kla m t/ n. 气候
process / pr ses/ n. 过程
living / l v / adj. 活（着）的
survive /s va v/ v.
活下来；幸存
paragraph / p r ɡrɑ f/ n. 段落
remain /r me n/v. 剩下；留存
alive / la v/ adj.
活的；仍然存在的
Learn the words
exchange / ks t e nd / n. 交换
passenger / p s nd /n. 乘客；旅客
mirror / m r / n. 镜子
Which word is missing
grassland
1
fix
snake
rabbit
mirror
rock
2
3
5
6
soil
4
good memory！
03
Reading & Writing
1. Read the words and expressions. Guess what the text is about.
prairie grassland lie beneath a stretch of
catch sight of ecosystem process link living
The text is about a prairie.
03
Reading & Writing
2. Read the text and guess where it is taken from.
□ a science magazine □ a fashion magazine
T I P
The North American Prairie was once one of the largest grasslands on Earth. Today much of it lies beneath cities or croplands or roadways. Yet parts of the prairie are still there.
Just east of the Rocky Mountains lies a stretch of short grass prairie. There you will still find prairie dogs. You’ll see short grass and big yellow sunflowers. You could see a snake glide past or a hawk circling overhead. And you might even catch sight of a rabbit.
grassland, cropland,
overhead 均为合成
词。合成词是由两个
或两个以上的词构成
的一个新词。合成是
英语构词法的一种。
√
03
Reading & Writing
These plants and animals are all important to this prairie ecosystem. An ecosystem can be described as the soil, rocks, plants, animals, water, climate, land, and all the processes that link these things together.
All living things work together to keep a prairie ecosystem healthy. These species might not survive in a different ecosystem. But all are right at home here, getting everything they need from the prairie.
文本翻译
03
北美草原曾经是地球上最大的草原之一。如今该草原大部分已被城市、农田或道路覆盖，但部分草原依然存在。
在落基山脉的东边，有一片矮草草原。在那里你仍能找到草原犬鼠。你会看到矮草和大的黄色向日葵。你可以看到一条蛇滑行过去，或者一只老鹰在头顶盘旋。你甚至会瞥见兔子的身影。
这些动植物对这个草原生态系统非常重要。生态系统包括土壤、岩石、植物、动物、水、气候、土地以及将它们联系在一起的所有的变化过程。
所有生物共同协作以保持草原生态系统的健康。这些物种在不同的生态系统中可能无法生存。但这里已是所有生物的家，它们在这片草原上可以得到所需的一切。
Reading & Writing
03
3. Read again and match the paragraphs with their main ideas.
Reading & Writing
Paragraph 1
Paragraph 2
Paragraph 3
Paragraph 4
A. The North American Prairie was once one of the largest grasslands on Earth, but now only parts of the prairie remain.
B. An ecosystem consists of all living things, the environment and their relationships.
C. A healthy ecosystem is essential for the survival of all living things.
D. You can see animals and plants on the prairie.
03
4. Replace the underlined parts with the words and expressions in the box.
Reading & Writing
1. As she stood up, she caught sight of herself in the mirror. _________
2. We could see a bird flying overhead. _________
3. A love of nature links the two poets. _________
4. Only six of the 50 passengers survived in the accident. _________
5. The farm lies in the small town. _________
connects stayed alive is located saw in the sky
saw
in the sky
connects
stayed alive
is located
Fill in the blanks. 短文填空
03
Reading & Writing
The North American Prairie was once one of the largest _________(grassland) on Earth. Today much of it ________(lie) beneath cities or croplands or roadways. Yet parts of the prairie are still there.
Just east of the Rocky Mountains lies a stretch ________ short grass prairie. There you will still find prairie dogs. You’ll see short grass and big yellow sunflowers. You could see a snake glide past or a hawk ________(circle) overhead. And you might even ________(catch) sight of a rabbit.
These ________(plant) and animals are all important to this prairie ecosystem. An ecosystem can be _________(describe) as the soil, rocks, plants, animals, water, climate, land, and all the processes ____________ link these things together.
All ________(live) things work together to keep a prairie ecosystem healthy. These species might not ________(survived) in a different ecosystem. But all are right at home here, getting everything they need from the prairie.
grasslands
lies
circling
catch
plants
described
that/which
of
living
survive
03
5. Work in pairs. Write down your understanding of an ecosystem.
Reading & Writing
For your reference
soil rocks plants animals
water climate land be right at home
all the processes that link these things together
03
5. Work in pairs. Write down your understanding of an ecosystem.
Reading & Writing
An ecosystem usually refers to/ consists of/ involves the soil, rocks, plants, animals, water, climate, land, and all the processes that link these things together. These things are right at home, getting things they need from the ecosystem.
03
6. Read the flyer and answer the questions
Reading & Writing
From 20 to 24 April, People and Planet Group will do some serious
(and fun) “go green” activities. Will you join us
Go Green Week
Tuesday
DRINK LOCAL
Water Taste Test (bottled
water vs tap water) in Student Union 10 am–3 pm
Monday
EAT REAL
Discounted vegetables and
fruit options at Food Court
10 am–8 pm
Wednesday
WASTE NOT
Clothing exchange outside Student Hall 11 am–4 pm
03
Reading & Writing
Thursday
SWITCH OFF
The global warming
debate in Student Union
7:30 pm
Friday
MOVE YOURSELF
Outdoor activities on the
playground 3 pm–5 pm
Would you like to be part of the group
We are looking for willing students and staff to help us go green!
Contact silvia.gogreen@ for more information.
文本翻译
03
Reading & Writing
1. If Ann is interested in the clothing exchange activity, when and where should she go
2. Doris is free after 7 pm every evening from Monday to Friday. What activities can she take part in
Wednesday 11 am---4 pm, outside Student Hall.
The EAT REAL activity on Monday and the SWITCH OFF activity on Thursday.
03
绿色行动周
从4月20日至24日，“人与地球环保组织”将开展一些重要（且有趣）的“绿色行动”环保活动。你会参加吗？
周一：天然饮食 上午10点至晚上8点，在美食广场有打折的蔬菜和水可供选择
周二：喝当地的水 上午10点至下午3点，在学生会进行水的味道测试（瓶装水与
自来水对比）
周三：不浪费 上午11点至下午4点，在学生礼堂外进行衣物交换
周四：关掉开关 晚上7:30，在学生会进行全球变暖辩论
周五：动起来 下午3点至5点，在操场上进行户外活动
Reading & Writing
03
7. Design a “Go Green Week” flyer for your class.
Reading & Writing
SEE YOU NEXT UNIT!

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