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Unit 4 The Wonder Of Nature
SectionnB (2a-2c)
人教版 八年级下册
通过匹配、朗读等方式，掌握 below、common、risky、survive、deep 等词汇及反义词的对应关系，感知 how + 形容词/副词 特殊疑问句的用法，准确认读并理解词义。（学习理解）
01
通过造句、短文填空等练习，内化 located、survive、deep 等词汇的用法，能正确使用 how long/high/deep 等结构提问，并能在语篇中运用目标词汇完成填空。（应用实践）
02
通过讨论和拓展练习，理解目标词汇在描述自然、环境等主题语境中的表意功能，能够主动用所学词汇描述一处自然景观，并分享自己对探索自然的看法，认同保护自然的理念。（迁移创新）
03
学习目标
反义词匹配和运用； how 引导的特殊疑问句的结构与造句；短文填空的语境分析。
重点
how 引导的特殊疑问句的灵活运用；单词形式在语境中的正确转换（如deep--deepest, wonderful--wonder)。
难点
教学重难点
01
Review
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
02
Lead-in
Let’s talk
Is it safe to climb Mount Qomolangma
Can plants live in the desert
Does it snow in your hometown in winter
No, it’s a little risky.
Some plants can survive in the desert, while some will die.
Yes, it’s common. / No, snow is unusual in my hometown.
02
Presentation
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
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
Complete the sentences with the words in 2a.
The bird flies above the tree, but the fish swims ________ the water.
It’s safe to stay here, but it’s ________ to go near the deep water.
The leaves are alive in spring, but they are _________ in winter.
This animal can survive in hot places, but it will ________ without water.
The wind is from the northern area, not the _________ area.
Some plants are common here, but others are _________.
The mountain is very high, but the hill is _________.
We can see the ______ of the mountain from faraway, but not the bottom.
below
risky
dead
die
southern
unusual
low
top
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
2b
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 large is your country
How heavy is a blue whale
How often do you exercise
long
high
deep
old
fast
soon
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
长城有多长？
珠穆朗玛峰有多高？
贝加尔湖有多深？
这座古建筑有多古老？
猎豹能跑多快？
你多久之后能到公园？
How long is the Great Wall
How high is Qomolangma
How deep is Lake Baikal
How old is this ancient building
How fast can a cheetah run
How soon will you arrive at the park
Translate
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
Read the passage again and complete the table.
Lake Baikal Location (位置) __________________
Depth (深度) ___________________ metres
Area (面积) ___________________ square kilometres
Special Feature (特色) The ________ freshwater lake in the world
Siberia, Russia
1,620
31,500
deepest
Why does the writer call it “a great natural wonder”
Discuss
It is the deepest freshwater lake in the world.
It covers 31,500 square kilometres (bigger than Belgium).
It is cold most of the year, but over 1,200 types of animals can still survive in this environment.
Introduce Lake Baikal from the following aspects.
Try to use your own words.
Where is it
How deep / large is it
Why is it a natural wonder
What do you think of it
Let’s sum up what we have learned!
Summary
1、回顾反义词列表、how 句型结构和短文填空重点词汇。
2、强调“语境决定单词形式”的原则，鼓励学生在生活中主动运用所学词汇。
Exercise
1.Many kinds of birds spend winter in the _________(south) part of China.
2.We saw many______(type) of colourful fish swimming happily in the clear stream yesterday.
3.________(nature) resources are important for us. And we should use them wisely.
4.The little boy was _________(curiosity) about how the clock worked, so he took it apart carefully.
5.As ________(travel), we should remember: When in Rome, do as the Romans do.
6.It’s _____(risk) to cross the road without looking both ways first.
southern
用括号中所给单词的适当形式填空。
types
Natural
curious
travellers
risky
Exercise
( )1. After the heavy rain, we were surprised to find the little bird in the tree was still ______.
A. live B. alive C. lovely D. lively
( )2. Dali is an amazing ancient town and it ______ millions of tourists every year.
A. attracts B. develops C. encourages D. takes
( )3. Lake Baikal，Located in Siberia, Russia, is one of the world's ___lakes.
A. more famous B. most famous C. famous D. famousest
( )4. There are so many ______ of smart phones in this shop. I really don’t know which to buy.
A. parts B. types C. sizes D. customers
B
A
B
B
Homework
基础作业
拓展作业
实践作业
完成本节课词汇相关的填空和匹配练习。
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。
上网查询更多关于世界自然景观的资料，阅读后以自己喜欢的方式（如海报、简报、口头报告）在班级分享。
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Thanks!/ 让教学更有效 精品试卷 | 英语学科
一、教学目标
（一）学习理解
掌握below、common、risky、survive、deep等核心词汇，能准确认读、理解词义并匹配反义词。
感知how + 形容词 / 副词特殊疑问句的结构与用法。
（二）应用实践
能正确运用located、survive、deep等词汇完成造句、短文填空。
熟练使用how long/high/deep等结构提问并作答。
（三）迁移创新
能用所学词汇描述自然景观，理解词汇在自然主题语境中的功能。
树立保护自然、探索自然的意识，乐于分享对自然奇观的看法。
二、教学重难点
重点：词汇反义词匹配运用；how引导特殊疑问句的结构与造句；短文填空语境分析。
难点：how引导特殊疑问句的灵活运用；词汇在语境中的形式转换（如 deep—deepest）。
三、教学准备
多媒体课件、词汇卡片、贝加尔湖相关图片 / 视频、课堂练习单
五、教学过程
Step 1 热身复习（5 分钟）
话题回顾：播放珠穆朗玛峰短视频，提问What difficulties do climbers face What achievements did Chinese teams make
快速问答：结合课件短文，复习risky、survive等旧知词汇，导入新课主题natural wonders。
Step 2 新知导入（7 分钟）
情景对话：课件展示 3 个问题，引导学生自由回答
Is it safe to climb Mount Qomolangma
Can plants live in the desert
Does it snow in your hometown in winter
词汇呈现：呈现below、common、risky、survive等核心词汇，带读音标，讲解中文含义。
Step 3 词汇学习（10 分钟）
反义词匹配（2a）：学生独立完成课件词汇配对，核对答案并齐读反义词组。
词汇填空：用 2a 词汇完成句子填空，巩固词义与用法。
词性分类：将词汇按形容词、副词、动词、介词、名词分类，梳理词性用法。
Step 4 句型突破（10 分钟）
句型梳理：课件展示how often/far/high/deep等疑问词组，讲解含义与用法。
结构总结：
How + adj. + be + 主语？（询问属性）
How + adv. + 助动词 + 主语 + 动词？（询问动作细节）
造句练习：结合long/high/deep/old/fast等词，模仿例句造疑问句，汉译英巩固。
Step 5 阅读训练（10 分钟）
背景介绍：展示贝加尔湖图片，简单介绍其地理位置与特点。
短文填空（2c）：学生用所给词的适当形式完成短文，教师核对答案，强调deepest最高级变化。
信息表格：根据短文完成贝加尔湖位置、深度、面积等信息表格，提取关键信息。
Step 6 讨论输出（5 分钟）
小组讨论：Why is Lake Baikal a great natural wonder
口头介绍：用Where/How deep/Why等提示，小组合作介绍贝加尔湖，代表展示。
Step 7 课堂小结（2 分钟）
回顾核心词汇反义词、how句型结构、短文重点词汇。
强调语境决定单词形式的学习原则。
Step 8 课堂练习（3 分钟）
词形转换：完成课件词汇适当形式填空。
单项选择：巩固词汇与句型用法，即时反馈。
Step 9 作业布置（1 分钟）
基础作业：完成词汇匹配、填空练习。
拓展作业：用至少 5 个本课词汇，写一段介绍贝加尔湖或喜爱的自然景观的短文。
实践作业：搜集世界自然景观资料，制作海报或准备口头分享。
四、板书设计
Unit 4 The Wonder Of Nature Section B (2a-2c)
一、核心词汇（反义）
below—above common—uncommon risky—safesurvive—die low—high dead—living
二、重点句型
How + adj./adv. + ... How deep is Lake Baikal How high is Qomolangma
三、Lake Baikal
deepest freshwater lake；1,620 meters deep；31,500 km
五、教学反思
关注学生对how句型的灵活运用，针对形式转换难点加强练习。
鼓励学生结合生活实际运用词汇描述自然景观，提升语言输出能力。
借助图片、视频等多媒体资源，增强课堂趣味性，落实保护自然的情感目标。/ 让教学更有效 精品试卷 | 英语学科
一、单项选择（每题 2 分，共 10 分）
1. It's important ______ us to learn English well.
A. for B. of C. to D. at
2. It's very kind ______ you to help me.
A. for B. of C. to D. with
3. We should stop ______ the river.
A. pollute B. polluting C. to pollute D. polluted
4. Remember ______ the lights when you leave the room.
A. turn off B. turning off C. to turn off D. turned off
5. It's necessary ______ enough water every day.
A. drink B. drinking C. to drink D. drinks
6. It is a great natural ______.
A. wonder B. wonderful C. wonderfully D. wondering
7. The opposite of "risky" is ______.
A. Safe B. dangerous C. common D. unusual
8. How ______ is the lake from the city
A. far B. long C. high D. deep
9. How ______ is the lake It is 1,620 metres.
A. Long B. deep C. high D. old
10. The opposite of "dead" is ______.
A. living B. die C. survive D. life
二、用所给词的适当形式填空（每题 2 分，共 10 分）
1. The opposite of "below" is ______ (above).
2. How ______ (long) is the lake It is 636 kilometres.
3. It is ______ (risk) to dive without training.
4. Many ______ (curious) travellers visit the lake every year.
5. The opposite of "common" is ______ (unusual).
6. Lake Baikal is the ______ (deep) freshwater lake in the world.
7. To reach the bottom, you must ______ (dive) 1,620 metres.
8. Over 1,200 animals can still ______ (survive) in this environment.
9. Its ______ (surface) covers 31,500 square kilometres.
10. It is a great ______ (wonder) natural wonder.
三、根据汉语完成句子（每空一词）
1. 对我们来说，每天锻炼是很重要的。
______ important ______ us ______ exercise every day.
2. 你帮助我真是太好了。
______ very kind ______ you ______ help me.
3. 我们应该停止污染河流。
We should ______ ______ the river.
4. 离开房间时记得关灯。
Remember ______ ______ the lights when you leave the room.
5. 我们必须尽力保护自然。
We must ______ ______ ______ to protect nature.
6. 不要到处扔垃圾。
Don't ______ rubbish ______.
7. 我们应该保持教室干净。
We should ______ the classroom ______.
8. 砍伐树木是错误的。
It's wrong ______ ______ trees.
八下Unit4 The Wonder Of Nature B(2a- 2c) 课堂练习参考答案：
一、单项选择
1-5 ABBCC 6-10 AAABA
二、适当形式填空
· 1. above 2. long 3.risky 4.curious 5.unusual 6.deepest 7.dive 8. survive 9.surface 10.wonderful
三、根据汉语完成句子（每空一词）
1. It's; for; to 2. It's; of; to 3. stop polluting 4. to turn off 5. try our best 6. throw; everywhere 7. keep; clean 8. to cut down

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