Unit 5 Into the unknown Developing ideas Reading 课件(共30张) 2024-2025学年高二英语外研版(2019)选择性必修4

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名称 Unit 5 Into the unknown Developing ideas Reading 课件(共30张) 2024-2025学年高二英语外研版(2019)选择性必修4
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资源类型 教案
版本资源 外研版(2019)
科目 英语
更新时间 2025-04-22 20:45:50

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(共30张PPT)
Developing ideas
Unit 5 Into the unknown
In this lesson, students will:
read and understand the passages about the topic of ocean exploration;
think about the structure of the passage and complete a diagram;
give a talk about the influences of ocean exploration on daily life.
Learning objectives
Have you ever dived into the sea
A shared bike
What do you know about the sea world
Look and answer:
What different zones are there in the ocean
The different zones in the ocean are Sunlight Zone, Twilight Zone, Midnight Zone and Abyssal Zone.
Which parts of the ocean do you think have been explored
What do you know about the deepest part of the ocean
Pre-reading
200 m
1000 m
6000 m
11000 m
0 m
≈20℃
5-10℃
0-4℃
<0℃
Read the passage and find out what
has been discovered in the ocean depths.
Shipwrecks such as that of the Esmeralda, ruins of ancient cities like Neapolis, extraordinary deep-sea creatures such as bone-white coral and the barreleye, and the substance known as “fire ice” have been discovered in the ocean depths.
While-reading
5. We are entering a new age
of oceanic discovery.
1. We have little knowledge
of Earth’s sea bed.
2. Many archaeological finds
are made in shallow waters.
3. There are extraordinary
creatures in the deep sea.
4. The oceans are a valuable
source of natural resources.
Read for general ideas.
Diving deep
Para. 1: Introduce the topic.
Para. 2-4:
Ocean
___________
Para. 2: the _______ of Neapolis
Para.3: amazing ___________
discoveries
Para. 5: ___________ is entering a new age of oceanic discovery.
Humankind
ruins
Para.4: __________ of natural resources
biological
discovery
exploration
Read for the structure
MODERN AGE: exploring ________________
Ocean Exploration
________________ exploration
Finding ancient ruins in __________________.
Working to overcome challenges and make discoveries at _____________.
Example:
_______________________
deep sea
Archaeological
shallow waters
vast depths
the ruins of Neapolis
MODERN AGE: exploring ________________
Ocean Exploration
deep sea
___________ exploration
Containing about 90 per cent of ________________.
Helping comprehend ______________________________.
Example:
____________________
____________________
___________________________________________________
Biological
the capacity for life on our planet
the planet’s fish
bone-white coral
the barreleye
life to be found even around the deep-sea volcanic openings
Discovery of natural resources
Discovering new natural resources.
Studying ______________
Identifying areas for __________________
Example:
____________________
___________________________
the sea bed
deep-sea drilling
“fire ice”
China’s underwater vessels
MODERN AGE: exploring ________________
Ocean Exploration
deep sea
1. What’s the main idea of the passage
A. There are millions of shipwrecks lying under waters.
B. Human’s exploration deep into the sea.
C. The tough environment of the sea bed.
D. Some new discoveries made by the scientists in the deep sea.
2. Which of the following is TRUE according to the passage
A. We have known more about the earth than the moon.
B. Even a whole city may be buried under the waters.
C. Most of the fishes live in shallow waters.
D. Humans have reached the deepest area of the ocean in a submarine (潜艇).
Statistics
Learn the writing techniques
Examples in Paragraph 2:
whole city buried beneath the waves
Roman city of Neapolis
location:
____________________________
time: ______________
cause:______________________
off the coast of Tunisia
tsunami
the 4th century
Examples
surface
200 metres
dark zone
6000 metres deep
8000 metres
Name:______________
Age: ________________
Name: _______________________
Features: _____________________
_____________________
barreleye
transparent head
Eyes can look upwards
life to be found even around the deep sea vocalnic openings
bone-white coral
4000 years old
Examples in Paragraph 3:
The use of statistics and examples make the passage more convincing.
China’s achievements:
New natural resource:
___________
2. Underwater vessels:
______________________________
fire ice
Jiaolong & Shenhai Yongshi
Examples in Paragraph 4:
Discourse markers
These markers function like road signs, helping you connect ideas and understand the writer’s attitude and opinions.
1 What do you think drives the exploration of the oceans
2 What common message do the two reading passages in this unit convey How do they each build upon this idea
Both passages convey the message that humans have the desire and means to explore the unknown. The first passage does this by looking at our fascination with history’s greatest mysteries, while the second passage looks at pioneering exploration of Earth’s oceans.
Think and share
After-reading
Group work:
Give a talk about the influences of ocean exploration on your daily life.
1 Look at the diagram below and brainstorm examples
of how ocean exploration affects your daily life.
3 Give your talk to the class.
2 Organise your talk by completing the diagram with your examples.
Language points
请从下表中选择合适的词汇并用其适当的形式完成此文。
resource; detail; vast; take; furthermore;
despite; exist; cooperation
Although we have had more __________ maps of the universe, we still have limited knowledge of the sea bed under the ______ waters of the oceans. In reality, there _______ life in the dark zones of the oceans, _____________ the high pressure, darkness, and extreme cold. , the oceans are a valuable source of natural . With international , humans are diving deeper and deeper into the oceans with the help of modern vessels, ____ deep-sea exploration into a whole new era.
detailed
vast
exists
despite
Furthermore
resources
cooperation
taking
1. Today, some 500 years after the Esmeralda set sail,
there is little— if any —land on our planet left unexplored.
句意:今天,在“埃斯梅拉达”号起航约500年后,我们的星球上几乎没有未被探索过的陆地。
Do you like collecting things If so, what
你喜欢收集东西吗?如果喜欢的话,你喜欢收集什么?
If possible keep a spare pair of glasses accessible in case your main pair is broken or lost.
如果有可能的话,最好准备一副备用眼镜,以防常用的那副
眼镜被打碎或丢失。
The scholar seldom, if ever, goes to the opera.
这个学者很少去看歌剧。
________(如果这样的话), you have to suffer from great pressure.
______________(如果有必要), he will design another new advertisement.
本句中 if any 为一种省略形式,补充完整是 if there is any表示“如果有的话”。某些句式经过长期发展已成为固定搭配:
if possible 如果可能的话 if only 要是……就好了
if ever 如果有过的话 if not 如果不的话
What if... 如果……怎么办? Why not 为什么不呢?
What for 为什么?
when/where necessary 必要的时候/地方
If so
If necessary
2. Given our limited knowledge, it is perhaps no surprise that exploration of the oceans continues to lead to discoveries in various scientific fields.
句意:考虑到我们有限的知识,对海洋的探索继续导致各种科学领域的发现也许并不奇怪。
① Judging from his accent, he is from Hong Kong.
从口音判断,他来自香港。
② Considering your health, you’d better have a rest.
考虑到你的健康,你最好休息一下。
本句为given引导的介词短语作状语,given还可作连词后面跟句子。
英语中常见的独立成分还有:
supposing/assuming/providing/provided (that...) 假如……
judging from... 根据……判断
Generally speaking... 一般说来
Frankly speaking... 坦白地说
【语法填空】
________(give) that they’re inexperienced, they’ve done a good job.
___________(assume) that you are chosen to be a volunteer at the Olympic Games, what will you do
Frankly _________, I’m not too keen on this meal, either.
Given
Assuming
speaking
3. Swimming through these black depths is the barreleye,
a strange fish with eyes that can look upwards through
its transparent forehead.
句意:在这些黑色的深处游动的是管眼鱼,这是一种奇怪的鱼,它的眼睛可以通过透明的前额向上看。
句子结构分析
that引导定语从句
分词短语引导完全倒装句
4. In the very deepest ocean trenches that are more than
8,000 metres below the surface, the pressure is equivalent
to 50 aeroplanes stacked one on top of another.
句意:在海面以下8000多米的最深海沟中,其压力相当于50架飞机叠在一起的压力。
非谓语动词作定语
that引导的定语从句
句子结构分析
5. Being a tough environment of complete darkness,
enormous pressure and intense cold, the ocean depths
have long been beyond the reach of human exploration.
句意:海洋深处环境恶劣,一片漆黑,压力巨大,温度极低,长期以来都是人类无法探索的。
The West Lake was beautiful beyond description. 西湖美得难以描述。
I honour him beyond expression. 我对他佩服得无法表达。
Our quality is far beyond comparison.我们的质量是无与伦比的。
beyond one’s reach 够不着
beyond recognition 认不出来,无法辨认
beyond question 毫无疑问的(地),确实的(地)
I find his behaviour _________________.
我发觉他的作为令人难以置信。
The children were _________________.
这些孩子不听管教。
The play was dull ______________________.
这出戏沉闷得无法相容。
beyond control 无法控制,失去控制
beyond one’s power 力所不及
beyond expectation 出乎意料
beyond expression 难以表达
beyond one’s capacity 超出某人能力
beyond belief
beyond control
beyond expression