资源简介

(共44张PPT)
Unit 4 The Earth
Reading
1. system
2. file
3. amazing
4. planet
5. *billion
6. cover
7. area
8. freezing
9. north
10. pole
n. 系统 p. 52
n. 档案 p. 52
adj. 令人大为惊奇的 p. 52
n. 行星 p. 52
num. 十亿 p. 52
v. 盖；覆盖 p. 52
n. 地区；区域 p. 53
adj. 极冷的 p. 53
n. 北；北方 p. 53
n.（行星的）极；地极 p. 53
New words and phrases
11. desert
12. metre
13. reach
14. *grain
15. wide
16. whale
17. butterfly
18. provide
19. explore
n. 沙漠；荒漠 p. 53
n. 米 p. 53
v. 足够达到 p. 53
n. 谷粒 p. 53
adj. 宽的；宽阔的 p. 53
n. 鲸 p. 53
n. 蝴蝶 p. 53
v. 提供；供应 p. 53
v. 探索 p. 53
20. solar system
21. fact file
22. be covered by
23. as far as we know
24. sea level
25. what’s more
26. provide ... with ...
太阳系 p. 52
事实档案 p. 52
被……覆盖 p. 52
据我们所知 p. 52
海平面 p. 53
更重要的是 p. 53
提供；供应；给予 p. 53
First thoughts
Think:
What amazing facts do you know about the Earth
What do you know about the sea
What problems is the Earth facing
What can we do to protect the Earth
Before you read
the solar system
the Sun
the Earth
clouds
land
the sea
1 Look at the pictures and fill in the blanks with
the words and the phrase below.
2 Complete the fact file with the words and phrases from Exercise 1.
The Earth
the Sun
the sea
land
clouds
the solar system
Read for information
While-reading
Reading Strategy: Skimming
Read the titile, the pictures and the first and the last paragraph on Page 53 and answer the following questions.
1. What does “the amazing planet”
refer to
A. The Sun. B. The Moon.
C. The Earth.
2. Where can you find the article
A. On a science website.
B. In a science magazine.
C. In a story book.
Reading Strategy: Scanning
1 Find sentence in the article on page 53 to go with these photos.
Reading comprehension
There are fields and mountains, rivers and seas, forests and deserts.
The tallest trees in the world can reach over 100 metres in height. The smallest plant is as small as a grain of rice.
Some, like tigers and lions, live on land. Other animals, like birds, enjoy the wide open sky. Big blue whales call the sea home, along with many amazing fish.
And what’s more, the Earth provides us with all the things we need, such as food, water, air and energy.
2 Read the article again and find evidence (证据) to support (证实) the statements below.
(1) There are both hot and cold places on Earth.
______________________________________________
______________________________________________
(2) The Earth is full of life.
______________________________________________
______________________________________________
(3) The Earth is very important to us.
______________________________________________
______________________________________________
(1) There are both hot and cold places on Earth.
(2) The Earth is full of life.
(3) The Earth is very important to us.
Some places are very hot, like the areas near the equator. Some are freezing cold, like the North and South Poles.
The plants on Earth are wonderful in many different ways. The Earth is home to millions of animals. It is our home and the only planet we know that supports life.
... the Earth provides us with all the things we need, such as food, water, air and energy.
3 Read the article after the recording and decide whether the following statements true (T) or false (F).
( ) 1. Some places on Earth are hot like the North and South
poles.
( ) 2. The passage suggests that Earth is the only planet we
know that supports life.
( ) 3. The smallest plant on Earth is as large as a football.
( ) 4. The Earth only provides us with food, water and air.
( ) 5. The topic sentence of third paragraph is “The tallest
trees in the world can reach over 100 metres in height”.
F
freezing cold
T
F
a grain of rice
F
F
provides us with all the things we need, such as food, water, air and energy.
The plants on Earth are wonderful in many different ways.
How to find the topic sentence
Identifying the topic sentence of a paragraph
The topic sentence of a paragraph introduces the main idea. It is usually at the beginning or the end of the paragraph. For example, the topic sentence of paragraph 3 is:
The plants on Earth are wonderful in many different ways.
Reading strategy
Can you find more topic sentences in the article
Practice: Find Topic Sentences
para. 4
para. 5
Topic sentence
supporting details
shows the main idea of the paragraph
provide evidence or examples to explain the main point, making the infromation more comprehensive and convincing for readers.
Post-reading
Discuss the questions below.
(1) What do you think makes the Earth an
amazing planet
(2) How can we show our care for our planet
One possible answer
(1) What do you think makes the Earth an
amazing planet
I think many things make the Earth an amzaing planet. There is water on the Earth, and that’s very important for life. We have all kinds of animals and plants. The blue sky and white clouds look beautiful. There are different seasons, like spring, summer, autumn and winter. And the Earth has many natural wonders, like big mountains and deep oceans.
(2) How can we show our care for our planet
We can save water and electricity at home. We should not throw rubbish everywhere and keep our environment clean. We can plant trees and flowers to make the Earth more beautiful. We can also ride bikes or walk instead of (代替) taking cars to reduce pollution. We should tell others to protect the Earth too.
One possible answer
Retell the key facts in the text
1. Some places on the Earth are very ... like ...
2. Some places are ... like ...
3. The highest mountain on the Earth is ...
4. The deepest part of the sea is ...
5. The tallest trees can reach ...
6. The smallest plant is ...
7. The Earth is home to ...
8. The Earth provides people with ...
Vocabulary practice
1 Choose the correct meaning for the words and phrases in italics.
P55
(1) Some places are very hot, like the areas near the equator.
a towns b deserts c places
(2) The tallest trees in the world can reach over 100 metres in height.
a grow to b touch c feel
(3) And what’s more, the Earth provides us with all the things we need ...
a however b in conclusion c besides; in addition
(4) And waht’s more, the Earth provides us with all the things we need ...
a gives b stops ... from c protects
(5) Let’s explore, learn about and take care of our home.
a understand b communicate with c find out more about
2 Complete the passage with the words and phrases in
italics from Exercise 1. Change the form if necessary.
The Earth is an amazing planet with beautiful forests. Some of the trees are so tall! They (1)_______ high into the sky. There are so many exciting places on our amazing planet for us to (2)__________. However, many
(3) ______ are now in danger because of us. We cut down too many trees. (4) ____________, we pollute the air and water. The Earth (5) _________ us _______ everything we need. It is the only planet we know that supports life. So let’s take care of it!
reach
explore
areas
What’s more
provides
with
Some places are ..., like ... /
Some are ..., like ...
3 What else do you know about the Earth
Make sentences to list some facts.
There is ... / There are ...
Word Building
Adjective suffix: -ly
We can add -ly to the end of some nouns to make adjectives. love → lovely friend → friendly
Can you give more exmples of making adjectives this way Examples: ________________________
______________________________________
1. The Earth is a lovely place for us to live on.
2. We should be friendly to our Earth.
like → likely
live → lively
brother → brotherly (兄弟般的)
week → weekly
Read for language
Post-reading
Critical Thinking
The author tries to make the language more concise (简练的) by using the following phrases. Highlight them and think about their functions (功能).
1）
1. Why does the writeruse just
one sentence in paragraph 1
Can we put it at the beginning of paragraph 2 to make one paragraph
“The Earth is an amazing planet!” summarizes the main idea of the whole text in a single sentence, so we can’t put it together with paragraph 2.
2）
2. Why does the writer use the phrase “like the areas near the equator”
Because the author wants to give a specific example.
Critical Thinking
The author tries to make the language more concise (简练的) by using the following phrases. Highlight them and think about their functions (功能).
3）
3. What is the use of the number “8,800 metres”
To provide a precise (精确的) measurement.
Critical Thinking
The author tries to make the language more concise (简练的) by using the following phrases. Highlight them and think about their functions (功能).
4）
To give us a clear comparison (比较).
5)
To give us another way of saying they live in the sea.
Can you find more examples in the text
Critical Thinking
Phrases
The author has used other phrases to make the text both informative(提供信息的) and easy to read. Let’s find them!
1. 在海平面上
2. 多于
3. 在许多不同方面
4. 和……一样
5. 是……的家园
6. 有……高
_________________
_________________
_________________
_________________
_________________
_________________
above sea level
more than
in many different ways
as + adj./adv. + as
be home to
in height
_________________
_________________
_________________
_________________
_________________
_________________
Phrases
The author has used other phrases to make the text both informative(提供信息的) and easy to read. Let’s find them!
7. 除……以外（还）；以及
8. 更重要的是
9. 给某人提供某物
10. 一粒米
11. 大量；无数
12. 照顾
along with
what’s more
provide sb. with sth.
a grain of rice
millions of
take care of
Exercise
Complete the following sentences:
1. 地球是许多动物和植物的家园。
The Earth _______ _______ _______ many animals
and plants.
2. 因为它给它们提供水、食物和空气。
Because it _______ _______ _______water, food
and air.
is home to
provides them with
Exercise
3. 地球上的植物在许多方面不一样。
The plants on Earth are different_______ _______
_______ _______.
4. 世界上最小的植物像一粒米一样小。
The smallest plant is as small as _______ _______
_______ _______.
in many
different ways
a grain
of rice
Complete the following sentences:
Exercise
5. 无数的人依靠地球的自然资源满足日常需求。
_______ _______ depend on the Earth’s natural
resources for their daily needs.
6. 地球上最高的山，珠穆朗玛峰，高达8848米。
The tallest mountain on Earth, Mount Everest,
reaches 8,848 metres _______ _______.
Millions of
in height
Complete the following sentences:
Observe the difference:
1) The Earth is an amazing planet.
2) Students are amazed at the amazing facts of the Earth.
其中amazing和amazed都是 _____词，amazing意为
______________ 修饰___; amazed意为__________
修饰___。类似用法的词有：__________________
________________________________________等。
形容
令人大为惊奇的
物
惊奇的
人
exciting / excited
interesting / interested
Choose the best answer:
1. We all laughed after we heard the _______ story.
A. interest B. interested
C. interesting D. interestingly
2. All the people felt _________(excite) when they
knew the _________(excite) result of the football
match.
C
excited
exciting
Fill in the blanks with the correct forms of words:
现学活用
like 是一个介词 prep. 意为___________相当于 ___________/____________。
试对比：I like ice cream.
该句中的like是_______词，意为________.
The boy likes swimming.
The boy likes to swim at the weekends.
“喜欢做某事”可以用__________和___________
来表达，前者尤指某人喜欢定期或经常做某事。
像；例如
for example
such as
喜欢
动
like doing
like to do sth.
Some places are ... like ...
一些地方……例如……
一些东西是可以回收利用的 (recyclable) 像玻璃、纸张、塑料瓶（plastic bottle)。
Some things are recyclable, like glass, paper and plastic bottles.
现学活用
over = more than 意为 _______
超过
The plane is above the house.
A cat is on the house.
The cloud is over the house.
above prep. 意为 __________________________
on prep. 意为 __________________________
over prep. 意为 __________________________
在……上面 (不接触；不垂直)
在……上面 (接触)
在……上方 (不接触；垂直)
(be) as + adj. + as 和……一样……
Ex.1 我和他一样高。
I am as tall as him.
Ex.2 我们的桌子和他们的一样新。
Our desks ____ ____ ____ ____ theirs.
tall
new
are as new as
拓展: 1. The girl can sing as beautifully as a bird.
2. The dog can run as fast as a horse.
(v.) + as + adv. + as 和……一样……
否定：not as/so ... as
be home to ... 是……的家园
The forest is home to birds.
The sea is home to fish.
millions of 意为 ___________
million num. 意为 ___________
EX1. 球场上有两百万名观众。
There are ______ _______ audience on the
football court.
大量；无数
百万
two million
总结：当million前有数字、many/several等修饰时，用原形；与of连用需加s表泛指。
Summary
1. The main facts of the Earth
2. Among them, which one do you think is the most
interesting one, and why
3. What else do you know about the Earth Make sentences to list some facts. (try to use “Topic sentence + supporting detail”)
Thank you!

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