资源简介

(共38张PPT)
Unit 4
The Wonders of Nature
人教版八年级下册
Section A (1a-2d)
Learning
goals
01
Talk about geography facts about natural wonders.
Learn new words and phrases: wonder, desert, measurement, square kilometre, below, sea level, surface, depth, dive, unusual, bottom
01
02
Free talk
02
It is 8,848.86 metres high.
What’s the highest mountain in the world
How high is it
Mount Qomolangma
Mount Qomolangma is the highest mountain in the world.
Nile River
What do you know about the following numbers
6,671 kilometres long
What do you know about the following numbers
Sahara Desert
about 9,000,000 square kilometres in size
Pre-
listening
03
1a
Match the places with the pictures.
Nile River Angel Falls Mount Qomolangma
Dead sea Sahara Desert Mariana Trench
A
D
B
E
C
F
F
C
A
E
D
B
While-
listening
04
Place Description Measurement
Mount Qomolangma the . in the world metres high
Sahara Desert the . in the world about square kilometres in size
1b
Listen to the game plete the descriptions of the places.
highest mountain
biggest desert
1b
Listen to the game plete the descriptions of the places.
Place Description Measurement
Dead Sea the . on earth metres below sea level
Mariana Trench the . in the ocean about metres deep
lowest place
deepest point
1c
Listen again. Complete the measurements in 1b with the numbers below.
416 8,848.86 11,000 9,000,000
Place Description Measurement
Mount Qomolangma the . in the world metres high
highest mountain
8,848.86
Place Description Measurement
Sahara Desert the . in the world about square kilometres in size
Dead Sea the . on earth metres below sea level
Mariana Trench the . in the ocean about metres deep
biggest desert
9,000,000
lowest place
deepest point
416
11,000
416 8,848.86 11,000 9,000,000
海平面
Pair work
05
A: What’s the lowest place on earth
B: It’s...
A: How low is it
B: It’s surface is... metres below sea level.
A: Now, what’s...
1d
Talk about the places you have learnt about.
表面
A: What’s the lowest place on earth
B: It’s the Dead Sea.
A: How low is it
B: Its surface is 416 metres below sea level.
A: Now, what’s the highest mountain in the world
B: It’s Mount Qomolangma.
A: How high is it
B: It’s 8,848.86 metres high.
e.g.
1. Fendouzhe reached
______________.
2. The deep sea begins at
______________.
3. The Titanic rests at
____________.
4. A whale can dive to
_________________.
2a
What do you know about the deep sea Complete the sentences with the information from the picture.
潜水
10,909 metres
200 metres
3,800 metres
over 2,000 metres
While-
listening
06
2b
A class is asking a deep-sea researcher some questions after his talk. Listen and tick the topics they discuss.
□Where the deep sea begins
□Why people are researching the deep sea
□Which Chinese submersible dived deeper in the water than
many others
□What deep-sea animals are like
□How everyone should protect the deep sea
潜水艇
2c
Listen again. Complete the sentences with the facts from the conversation.
1. People still don’t know much about the .
2. In , China’s Fendouzhe dived into the deep sea and filmed it.
3. Some animals have unusual abilities. Some are but can “sea”. Some can even create their own .
4. There is rubbish even at metres deep.
2020
ocean floor
blind
light
11,000
2d
Read the questions and think of more you would like to ask the deep-sea researcher. Research the answers. Then ask and answer the questions with a partner.
What is the largest shark in the deep sea
What is the bottom of the deep sea like
Why is it important to research the deep sea
在……的底部
e.g.
A: What is the largest shark in the deep sea
B: I think it’s the whale shark.
A: Do you know how large it is
B: It can grow up to about 10 to 20 metres in length.
A: What is the bottom of the deep sea like
B: It is dark, freezing, and has high pressure. There are also
many unique creatures.
A: Why is it important to research the deep sea
B: Because the deep sea has unique species for research, holds
important resources, and can help control our climate.
Language
points
07
wonder
想知道 v.
奇观；奇迹 n.
惊讶；惊叹 n.
1. The Wonders of Nature 自然奇观 (教材 P31 单元标题)
The Grand Canyon is one of the natural wonders of the world.科罗拉多大峡谷是世界自然奇观之一。
2. 416 metres below sea level 低于海平面416米。(教材 P32 1b)
(1)[介词]
①(地方或位置)在(或到)……下面
At over 152 metres below the surface of the water, the daylight is almost gone. 在水面以下超过152米的地方,日光几乎消失了。
below prep. & adv.在 (……)下面；低于
The temperature in our hometown usually drops below zero in winter. 我们家乡的气温在冬天通常会降到零度以下。
For further information on tomorrow’s weather, call the hotline below. 如欲查询明天的天气情况，请拨打以下热线 。
(2)[副词]在(或到)下面
②(数量、水平等)少于；低于
below
under
表示在某物的下方，但不一定是在正下方。
表示在某物的正下方。
反义词:above
反义词:over
(1)高度
level n. 高度；水平；程度
As long as we keep working, we will achieve higher levels. 只要我们继续努力，我们会达到更高的水平。
The level of salt in his diet was too high. 他饮食中盐的含量过高。
The mountain is about 8,000 metres above sea level. 这座山的海拔大约为8 000米。
(2)水平；程度 常与介词of连用。
3. Why people are researching the deep sea人们为什么要研究深海 (教材 P33 2b)
research v.& n. 研究；调查
(1)[动词]研究；调查
She spent several months researching the subject.她花了几个月的时间研究这个主题。
Though scientists have done much research on the brain, there’s still a lot to do. 尽管科学家们已经对大脑进行了大量研究，但要做的仍有很多。
(2)[不可数名词]研究；调查
do research (on/into sth.) 进行(关于某方面的)研究/调查
由“ un-( 否定前缀) +usual(adj. 通常的) ”构成。unusual的发音以元音音素开头，其前有不定冠词时，应用an。
4. Some animals have unusual abilities. 有些动物拥有非凡的能力。(教材 P33 2c)
unusual adj. 特别的；不寻常的
Tan Dun is an unusual man with great musical talent. 谭盾是一个与众不同的人，他有着非凡的音乐天赋。
It’s unusual for the trees to flower so early. 这种树这么早开花很少见。
usual adj.
通常的；平常的
usually adv.
通常地；平常地
unusually adv.
不寻常地
unusual adj.
不寻常的
反义词
反义词
Summary
08
Words:
1. wonder n. 奇观；惊叹 v. 琢磨；想知道；感到诧异—
wonderful adj. 精彩的；绝妙的
2. measure v. 测量；量度为—measurement n. 数量；测量
3. deep adj. 深的；有……深的—depth n. 深(度)；纵深
4. research v. & n. 研究；调查—researcher n. 研究者
5. usual adj. 通常的—unusual adj. 特别的；不寻常的—
usually adv.通常地
Phrases:
1. on earth 在地球上
2. square kilometre 平方千米
3. below/above sea level 低于/高于海平面
4. dive into the deep sea 潜入深海
5. the bottom of …… 的底部
Homework
09
Review the new words and expressions.
01
Retell 2c.
02
汇报人：WPS
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