资源简介

(共23张PPT)
Unit 4
The Wonders of Nature
Section B (2a~3c)
To master the corresponding relationship between words and their antonyms, including below, common, risky, survive, deep and recognize the usage of “how + adjective/adverb” in special questions.
To obtain key information about natural landscapes such as the Great Barrier Reef and Qinghai Lake, summarize and internalize common expressions for describing location features and giving travel suggestions by reading and analysis.

To the use of vocabulary describing natural landscapes in real contexts, actively introduce a favorite natural landscape using the learned words.
学习目标
Reaching New Heights
Difficulties and dangers
Achievements of Chinese teams
Reasons for climbing
Part 1
①
②
③
④
⑤
Part 2
Part 3
Review
Can you tell the Chinese meanings of the following words and choose some words that can be used to describe Lake Baikal
below　　 　 top common　 　northern
low　　　 risky dead　　 survive
safe bottom　 living southern
high above die unusual
在......下面
顶部
常见的
北方的
低的
/ r ski/有危险的
死的
生存,存活
安全的
底部
活的
/ s n/南方的
高的
在......上面
死亡
不寻常的
新课讲授
Match the words on the left with their opposites on the right.
1.____ below　　　5. ____ top
2.____ common　 6. ____ northern
3.____ low　　　　7. ____ risky
4.____ dead　　　 8. ____ survive
A. safe　　　 E. unusual
B. bottom　　 F. living
C. southern　 G. high
D. above　　 H. die
D
E
G
F
B
C
A
H
2a
below
common
low
dead
top
northern
risky
survive
above
unusual
high
living
bottom
southern
safe
die
adj.
adv.
v.
prep.
n.
common — unusual; low — high;
dead — living; northern — southern;
risky — safe
low — high; below — above
survive — die
below — above
top — bottom
Categorize the words.
Let’s learn.
疑问副词 用法·含义
how often
how far
how heavy
how large
how high
how long
how deep
how fast
询问频率；多久一次
询问距离；多远
询问重量；多重
询问尺寸/面积/规模；多大
询问高度；多高
询问长度/时间；多长/多久
询问深度；多深
询问速度；多快
Read the examples and make more sentences using how and the words in the box.
How far is it from your home to school
How heavy is a blue whale
How large is your country
How often do you exercise
通过观察我们可以发现How后接的单词均为形容词或副词，即“How +adj./ adv.”。
询问路程或距离
询问重量
询问面积或规模
询问频率
How + adj. + be + subject
询问人或物的属性、感受或状况
How + adv. + do(助) + subject + v. 询问动作的细节，包括进行方式、频率或时间
2b
1 .
2 .
3 .
4 .
5 .
6 .
long high deep old fast soon
How long is the Yellow River
How high is Mount Taishan in Shandong
How old is your grandfather
How fast can a giraffe run
How soon will the rainy season start in this area
How deep is the Mariana Trench
There are some Baikal seals swimming freely below the ice.
What do you know about Lake Baikal
Lake Baikal is the deepest freshwater lake in the world.
...
贝加尔湖(Lake Baikal)，位于俄罗斯东西伯利亚南部，在布里亚特共和国和伊尔库茨克州境内，湖总容积23.6万亿立方米(2015年)，最深处达1637米(2015年)，是世界第一深湖、亚欧大陆最大的淡水湖。湖长636千米，平均宽48千米，面积为3.15万平方千米，由地层断裂陷落而成，湖面海拔455米，平均水深730米。
Think and Say
Located in Siberia, Russia, Lake Baikal is one of the world’s most famous lakes. It is the _______ freshwater lake in the world. To reach the bottom, you must ____ 1,620 metres! It is also larger than most other lakes. Its _______ covers 31,500 square kilometres. That is bigger than the country of Belgium! Lake Baikal is very cold for most of the year. But over 1,200 different types of animals can still _______ in this __________ . Today,
the lake still attracts many curious travellers. After all, it is a great natural ________!
deep environment survive wonderful surface dive
Complete the passage with the correct forms of the words in the box.
deepest
dive
surface
survive
environment
wonder
2c
the Great Barrier Reef
Do you know the biggest coral reef in the world
Pre-writing
What is the type of this passage
A. A report
B. An advertisement
C. A science fiction story
What is the author's purpose in writing this advertisement
The author's purpose is to introduce the amazing features of the Great Barrier Reef and attract more people to visit it.
Read and Analysis
Read the advertisement. Circle the numbers and underline the adjectives used to describe the Great Barrier Reef.
What roles do these words play in the advertisement
Numbers make the advertisement believable and impressive. Adjectives make the advertisement attractive.
Read and Circle
3a
1. Where is the Great Barrier Reef
2. How large is the Great Barrier Reef
4. What can you do in the Great Barrier
Reef
It is on the northeastern coast of Australia.
It takes up an area of 345,000 square kilometres.
We can swim or dive in the clear water.
3. What can you see in the Great Barrier
Reef
We can see coral, plants, colourful fish, large fish, turtles and sharks.
Read and Answer
An _________ to visit
_________ and sights there
invitation
Activities
Facts about ________________
______
the Great Barrier
Reef
Read again and complete the main idea of each part.
(通过问句提出邀请)
(介绍大堡礁的位置、面积和特色)
(描述大堡礁的风景和游客活动并再次推荐游客游玩)
Part 1
Part 2
Part 3
Read and Complete
Read the notes on Qinghai Lake. Rewrite them in full sentences.
Qinghai Lake
What: a salt lake
Where: Qinghai Province, China
Special fact: the largest lake in China (4,340 km2)
Things to do: photograph wildlife (fish and birds), visit islands, ride a bike or horse
1. Qinghai Lake is a __________in ________________________.
2. Qinghai Lake is_________________in China.
3. It is __________________________in size.
4. If you visit Qinghai Lake, you can ____________________________
______________________.
salt lake
Qinghai Province, China
the largest lake
4,340 square kilometres
photograph wildlife, visit islands
and ride a bike or horse
3b
Write an advertisement for Qinghai Lake or another natural wonder. Try to make your advertisement as persuasive as possible.
写作指导
审主题：
为青海湖或另一自然奇观撰写广告，描述其特色并说明游览理由，力求有说服力。
审时态：
一般现在时
审人称：
1. 清晰描述自然奇观的核心特征（如青海湖的盐湖属性、规模、景观等）。
2. 阐述游览价值（如独特体验、生态意义、视觉享受等）。
3. 运用生动的形容词、副词和关键数字增强说服力，结尾呼吁读者前来游览。
以第二人称（吸引读者）和第三人称为主
审要点：
3c
Form an outline
Title
An amazing highland/salt lake
Part 1
Do you love/like/want to...
If so, / Then visit Qinghai Lake!
Part 2
Located in..., it is the...lake in China. And it takes up an area of... / It is located in... , and is the...lake in China, covering...square kilometres...
Part 3
If you ... you can .../ you can see...
Visit Qinghai Lake, find your perfect view! / Come to Qinghai Lake, leave all your worries behind...
Think and List
Linking words
Even though, Although,
If, What’s more,
Instead, But,
Besides, All in all,
In addition, However,
Furthermore, When,
Because, …
Useful Expressions
adj:amazing, biggest, largest, clear, colourful, white...
verb:visit, swim, dive, see...
It includes...
It is one of the most amazing...
If you visit it, you will...
Visiting...is the dream of a lifetime!
Think and Learn
Checklist Self-evaluation Peer-evaluation Teacher-evaluation
Clear structure
Complete content
Rich language
Proper linking words
Correct grammar
Correct spelling
Good handwriting
Read and Evaluate
Qinghai Lake: An Amazing Highland Wonder
Do you love quiet lakes and amazing wildlife Then visit Qinghai Lake!
Located in Qinghai Province, the northwestern of China, the Qinghai Lake is one of the most amazing places to visit. It is the largest salt lake in China, covering 4,340 square kilometres.
If you visit Qinghai Lake, you can photograph wildlife, visit islands, ride a bike or horse. Qinghai Lake is more beautiful in summer. If you visit in July, you can see many beautiful birds and fields of blooming rape flowers. Walk along the lake and enjoy the clear blue water stretching to the sky—every view is a wonderful surprise.
Come to Qinghai Lake and make your dream come true!
Homework
使用至少5个本课词汇，写一段介绍贝加尔湖或者你最喜欢的自然景观的短文。

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