人教版（2019）选择性必修 第四册Unit 3 Sea Exploration Reading for Writing 课件(共17张PPT)

(共17张PPT)
年 级：高三
学 科：高中英语（人教版 选必四）
Unit 3 Using Language (2)
Reading and writing
In this class, you will
1. read two argumentative essays about sea exploration and analyze the structure;
2. use PEEL method to appreciate the language features of argumentative essays;
3. discuss the advantages and disadvantages of sea exploration and write a short paragraph to express your opinions.
Learning Objectives
What drives people to explore the sea
Reading
curiosity
development
(political, economic, cultural)
Are you for or against sea exploration
What is the text type of two passages
Reading
Argumentative essay
Argument
Evidence
Restatement
Structure
Reading --Text 1
Argument
Evidence
Restatement
Sea exploration has caused many problems
pollution
damaging mining
overfishing
Do protect the ocean!
Argumentative essay
Structure
Content
Language
writing methods
Find out the arguments and evidence.
1. facts
2. figures
3. examples
4. cause& effect
choice of words/ sentence patterns
linking words
also, another, ...
“so-called” research”, “murder”, “if..., ...”
Reading -- Text 2
Argument
Evidence
Restatement
Sea exploration is important for our future
scientific research
resource management
future development
Manage the balance between sea exploration and economic needs
Argumentative essay
Structure
Content
Language
writing methods
1. facts
2. examples
3. cause& effect
“Opponents may be concerned, but…”
“truly, probably, hopefully,”
linking words
choice of words/ sentence patterns
also, for example, ...
Discussing
Viewing strategy:
When viewing a graph, we need to pay attention to the vertical and horizontal axis, the highest and lowest point, and the general trend.
Discussing
It is illustrated in the chart that the number of oil spills have decreased sharply over the past 40 years.
The number of oil spills fell from 80 in the 1970s to a low of 18 in the 2000s.
Vocabulary bank
上升: increase, rise, show an increasing trend,
下降: decrease, drop, fall, decline,
副词: rapidly, dramatically, sharply,
steadily, slowly, slightly
Text 2
Discussing
As is revealed in the chart, the past 4 decades witnessed a worsening global trends in the state of world marine fish stocks.
From the statistics given in the graph, it can be seen that the percentage of overfished and fully fished oceans increased to 30% and 60% respectively. On the contrary, the percentage of underfished oceans declined from 40% to 10%.
It can be concluded from the graph that the world marine fish stocking is facing a crisis.
It’s high time that we took measures to address this crisis. For example, governments should put more fishing policies into effect.
Text 1
Write an argumentative essay on sea exploration.
Express your opinions with supporting facts.
Employ some effective writing methods and expressions.
Use the PEEL method to help you structure your argument.
Writing
PEEL model
Point
Evidence
Explanation
Link
Clear
Convincing
Comprehensible
(可理解的)
Coherent
(连贯的)
Writing
What point do you want to make
What facts and examples can you find to support your point
How reliable are the resources
Explain how the facts support your opinion and show other opinions to be correct.
Connect this point to the next point, or back to the main point of the essay or paragraph.
Argument
Evidence
Restatement
Outline
We should explore the ocean.
We do not know much about the ocean.
We need to learn more to protect the ocean.
The development of new technologies can also benefit us in other areas.
We need to do all we can to support ocean exploration.
Writing
Even though the oceans make up about 70% of the earth's surface, more than 80% of the oceans remain unexplored. While some people say that we should not explore the oceans, their reasoning is not very sound. Exploring is not the same as exploiting. When we explore a place, we go just to see and understand what is there.
We should explore the ocean, first and foremost, because we do not know what we do not know. We thought we knew many about the ocean, but we were wrong. There could be life forms in the ocean, for example, that fit none of the neat categories we have for life while we have no clue that they even exist.
Listing figures
Using linking words
Writing
This brings up the second point. We already know many things about the ocean, but we need to learn more. A good example is ocean acidification. We know that it is causing coral to die. We know that using less fossil fuel would cause the process to slow down. However, we need to learn more to find out how to stop it. We need more research to see what is going on, and to come up with plans and solutions.
Explaining cause and effect relations
Writing
Finally, to do this research, we have to enter an extreme environment not very friendly to humans. This requires the development of new technologies that can also benefit us in other areas. For example, in many ways, the deep ocean resembles outer space. The technologies can benefit each other. For another instance, the technology of a mechanical arm to collect samples which has been used in factories and development of artificial limbs for humans.
All in all, there are many good reasons to explore the oceans. If we care about science, about protecting our oceans and about developing new technologies, we need to do all we can to support ocean exploration.
Giving examples
Writing
Checklist
□ Is there a clear point
□ Are there supporting facts and examples
□ Are the facts and examples convincing and persuasive
□ Is the explanation relevant and understandable
□ Are there linking words connecting two points
Assignment
Search online for more information about sea exploration.
Polish your draft and send it to haiguangmao@