资源简介

(共31张PPT)
（人教新版）八年级
下
Section A 2a-3d
The Wonders of Nature
Unit4
01
02
03
通过听、说、读等方式，获取并正确认读关于深海探索、河流特征等主题词汇，感知自然奇观相关词汇用法。
与同伴合理接续对话，运用比较级和最高级，大数字以及跨学科知识交流中外地理知识。
通过听力捕捉、对话分析，获取文本中关于深海深度划分、河流长度与重要性的关键信息，归纳并内化询问与介绍自然奇观的常用表达。
Learning objectives
04
理解海洋和河流对国家文明的形成和发展的历史作用，正确看待人与自然的关系，树立环保意识，坚定文化自信。
、
Let’s watch and think.
What do you know about the deep sea
Let’s follow Fenfouzhe to explore.
Warming-up
、
Fendouzhe 奋斗者号，是中国自主研发的万米载人潜水器，于2016年立项，由蛟龙号、深海勇士号载人潜水器的研发力量为主的科研团队承担 。2020年6月19日，中国万米载人潜水器正式命名为“奋斗者号” 。
2020年10月27日，奋斗者号在马里亚纳海沟成功下潜突破1万米达到10058米，创造了中国载人深潜的新纪录。11月10日8时12分，奋斗者号在马里亚纳海沟成功坐底，坐底深度10909米，刷新中国载人深潜的新纪录。2021年10月，“奋斗者”号已在马里亚纳海沟正式投入常规科考应用。
Background
、
The deep sea refers to the area of the ocean deeper than 200 meters（海洋里水深超过200米的区域）.
What is the deep sea
海洋从岸边到海底分为 4 层：
浅海（0–200m）：阳光能照到，有植物、鱼多
半深海（200–1000m）：光线开始变弱
深海（1000–6000m）：完全黑暗
超深渊（6000m 以下）：海底最深处，如马里亚纳海沟
、
It makes up more than 90% of the entire ocean. No sunlight can reach it — it is dark, cold, and under extremely high pressure.
What is the deep sea
深海的 4 个地理特点
1.没有阳光→ 完全黑暗
2.水温很低→ 常年 1℃～4℃
3.水压极大→ 越深压力越大
4.食物很少→ 生物靠上层掉落的食物生存
、
2a
What do you know about the deep sea Complete the sentences with the information from the picture.
1. Fendouzhe
reached ____.
2. The deep sea
begins at ____.
3. The Titanic
rests at ____.
4. A whale can
dive to ____.
v. & n. 潜水；跳水；俯冲
B
D
C
A
通常认为，深度超过 2,00 米 的海域属于深海区域。在这一深度以下，光照几乎消失，水压极大，环境与浅海截然不同，孕育着许多适应极端环境的特殊生物，也有着独特的地质结构。
有些鲸鱼，例如柯氏喙鲸，能够下潜到深海区域，其最深下潜记录可达约 2,992 米 。鲸鱼的这种深潜能力是为了觅食等生存需求，它们在深海的活动也反映了深海生态系统中生物的多样性和适应性。
著名的泰坦尼克号邮轮在 1912 年沉没于北大西洋，其残骸位于约 3,800 米 的深海处。这一深度的海底环境使得泰坦尼克号的残骸保存状况具有独特的研究价值，也让人们对其沉没的历史事件有了更多的探索线索。
“奋斗者” 号是中国自主研发的全海深载人潜水器，它成功下潜至马里亚纳海沟 10,909 米 处，这一深度彰显了中国在深海探测领域的先进技术，也为人类探索深海奥秘、开展深海科学研究提供了重要支撑。
、
A class is asking a deep-sea researcher some questions after his talk. Read the questions first.
2b
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
Listen and tick the topics they discuss.
v. & n. 研究；调查
n. 潜水艇
Tip: 首先，阅读题目，抓住关键词(特殊疑问词 、动词等)。然后，听中听到话题关键词或同义词时，确定答案。
、
Listen again. Complete the sentences with the facts from the conversation.
2c
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 “_________”. Some can even create their own __________.
4. There is rubbish even at _________ metres deep.
deep sea/ocean floor
2020
blind
11,000
see
light
Tip: 听前分析空缺内容(名词、年份、动词、形容词、数字等)。听中抓取细节信息，先记录关键词，听完后再补全完整单词。
、
Ms Gao: Thank you for the wonderful talk, Mr Jones. Now, does anyone have any questions
Emma: I do! Why are so many countries ______________________
Mr Jones: Well, ________ is one reason. We don't know enough about the ocean floor.
Fu Xing: I remember that in 2020, China's Fendouzhe _______________ the MarianaTrench than many other submersibles in the world and filmed it. But I didn't see any deep-sea animals. What are they like
Listen again and fill in the blanks.
researching the deep sea
curiosity
dived deeper into
感谢琼斯先生的精彩演讲。
为什么如此多的国家都在研究深海？
海底
中国的奋斗者号在马里亚纳海沟下潜得比世界上许多潜水器都神，还拍摄了影像
“形容词 / 副词比较级 + than”表示两者（人或事物）的比较。
、
Mr Jones: Well, many deep-sea animals are ____________________. Some animals are blind, but they can "see" as well as others. Some even __________________!
Peter: Cool! Are there any other surprising facts about the deep sea
Mr Jones: Did you know that there's rubbish even at 11,000 metres deep That ________ many people.
Ms Gao: That's terrible! We should do something about it.
Mr Jones: You're right!
large and unusual
create their own light
shocked
有些动物没有视力，却能和其他动物一样“感知”周围。
自己发光
感到震惊
“as + 形容词或副词原形 + as”为同级比较，表示两者在某一方面相同。
any other + 名词复数，表示“还有其他……吗？”
as well as 表示“和……一样好”
、
2d
Read the questions and think of more you would like to ask the deep-sea researcher.
● 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
● What other vessels dived to the bottom of the ocean
● What do deep-sea animals usually eat to survive
● How cold is the water in the deep sea
● What tools do researchers use to study the deep sea
● ...
bottom...的底部
、
Research the answers.
P33
● 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
● What other vessels dived to the bottom of the ocean
● What do deep-sea animals usually eat to survive
● How cold is the water in the deep sea
● What tools do researchers use to study the deep sea
The largest shark in the deep sea is the Greenland shark (格陵兰鲨).
It is usually dark, cold, and covered with soft sedimen (沉积物).
Other vessels include Trieste (迪里雅斯特号) and Alvin (阿尔文号).
It helps us learn about ocean life and get useful things for our lives.
They usually eat other small animals or organic debris (有机碎屑).
It is very cold, usually around 0-4 ℃.
Researchers use vessels like Fendouzhe and cameras to study the deep sea.
、
Then ask and answer the questions with a partner.
What is the largest shark in the deep sea
The largest shark in the deep sea is the Greenland shark.
、
Let’s watch and think.
What wonder of nature is it in the video
New drills
、
Hukou Waterfall
壶口瀑布是黄河干流瀑布。东濒山西省临汾市吉县壶口镇，西临陕西省延安市宜川县壶口镇，为两省共有旅游景区。南距陕西省西安市350千米；北距山西省太原市387千米。
壶口瀑布是中国第二大瀑布，世界上最大的黄色瀑布。黄河奔流至此，两岸石壁峭立，河口收束狭如壶口，故名壶口瀑布。瀑布上游黄河水面宽300米，在不到500米长距离内，被压缩到20—30米的宽度。1000立方米/秒的河水，从20多米高的陡崖上倾注而泻，形成“千里黄河一壶收”的气概。
、
Read the conversation and answer the questions.
1. What waterfall do Yaming and Ella mention
2. Why is the Yellow River called "yellow"
3. Is Ella interested in rivers
The Hukou Waterfall.
Because some parts of the river carry brown and yellow earth.
Yes.
、
3a
Read the conversation and underline the three rivers mentioned.
River
_____________
_____________
_____________
Yellow River
Yangtze River
Nile River
、
、
Read the conversation and answer the questions.
1. What waterfall did Ella visit during her trip
She visited the Hukou Waterfall on the Yellow River.
The Yellow River.
The Yangtze River is about 836 kilometers longer than the Yellow River.
2. What is the second longest river in China
3. How many kilometres longer is the Yangtze River than the Yellow River
4. What other name do people call the Yellow River in China, and why
People call it “mother river” in China, because it is very important to Chinese history and culture.
、
3b
What do Yaming and Ella know about these rivers Complete the information about the three rivers.
River Country Length Feature
Yellow River China _____ km the second longest
river in ______
Yangtze River _______ _____ km the _______ river
in China
Nile River _______ _____ km the longest river in
_______
China
Africa
5,464
6,300
6,671
China
longest
Africa
Both the Yellow River and the Nile River helped in the development of ancient ___________.
civilizations
、
Let’s read the numbers!
9,613
nine thousand six hundred and thirteen
59,613
fifty-nine thousand six hundred and thirteen
59,613.78
fifty-nine thousand six hundred and thirteen point seven eight
259,613
two hundred and fifty-nine thousand six hundred and thirteen
、
Language Points
Yaming: Welcome back, Ella! How was your trip
Ella: It was great! We saw the Hukou Waterfall on the Yellow River. Is that the longest river in China
Yaming: No, the Yangtze River is the longest river in China. It travels the farthest and is about 6,300 kilometres long. The Yellow River is 5,464 kilometres long and is the second longest. By the way, do you know why it's called the Yellow River
Ella: Because it's yellow.
/ w t f l/ 瀑布
它流经的距离最远，大约有6300千米长。
顺便问/说一下
你知道它为什么被称为黄河吗？
宾语从句由why引导，宾语从句用 “主语+谓语”的陈述语序。
、
Yaming: Right. Some parts of the river carry brown and yellow earth.
Ella: That's interesting! I like learning about rivers. My favourite is the Nile. Did you
know it's the longest river in the world
Yaming: Yes, it's 6,671 kilometres long. It's very important in Egypt's history.
Ella: That's right. Both the Nile and the Yellow River helped ancient civilizations to develop. And they're still very important today.
Yaming: Yes. In China, we even call the Yellow River our “mother river”!
Ella: We should protect them at all costs.
泥土
埃及
古代文明
......和......(两者都......)
发展
不惜一切代价；无论如何
了解
、
Listen to the conversation. Then role-play it.
3c
Criteria (标准) Score
1. Be accurate! (发音准确)
2. Notice the stress! (注意重音)
3. Be vivid! (表演生动)
4. Be emotional! (情感充沛)
、
What other geographical features in China do you know
、
Picture English "Superlative" in simple English
Taklimakan Desert The largest desert in China
Mount Qomolangma The highest mountain in the world / in China
Qinghai Lake The biggest inland lake and biggest saltwater lake in China
Yangtze River The longest river in China / in Asia
Hainan Island The second largest island in China; the largest tropical island in China
Huangshan Mountain One of China’s most famous and beautiful mountains
Poyang Lake The biggest freshwater lake in China
Gobi Desert One of the largest deserts in Asia
"Here are some famous geographical features in China. Let's learn their names."
、
The largest grassland
The largest desert
The longest wall
Hulunbuir Grassland
(呼伦贝尔大草原)
Ella: Could you tell me more about China, Yaming
Yaming: Sure! What would you like to know
Ella: What’s the biggest desert in China
Yaming: It’s the Taklimakan Desert.
Ella: Do you know...
Taklamakan Desert
(塔克拉玛干沙漠)
The Great Wall
(长城)
Imagine that you are Yaming or Ella. Continue the conversation with a partner about other geographical features in China.
3d
Homework
1. 基础作业：熟读3a的对话内容，背诵其中描述黄河、长江、尼罗河长度和重要性的句子，并用英语默写下来。
2. 拓展作业：根据2a-2d的深海相关内容，结合自己的查阅，用英语写5个关于深海的趣味小知识。
3. 实践作业：和家人合作，选择中国一处海洋或者河流景观，用英语制作一份简易介绍卡片，包含名称、位置、一个特色特点这三项信息。

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