高中英语人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration说课ppt课件

这是一份高中英语人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration说课ppt课件，共18页。PPT课件主要包含了Argument，Evidence，Para 1，Para 23，Para 4，Point，Link，Brainstorm，Sample，词数100左右等内容，欢迎下载使用。
What did yu knw smething abut sea explratin?What are the advantages/ disadvantages f sea explratin?
Generate electricity
Explit resurces
discver new species
What is the cntent f the tw passages abut?
What is the text type f the tw passages?
What are the three parts f an argumentative essay?
They are mainly abut the sea explratin.
Argumentative essay.
Argument, evidence, restatement/ recmmendatin/ a call t actin.
Skim Text 1 and divide it int three parts.
Restatement
Sea explratin caused prblems
Overfishing
Less explratin & mre prtectin
Hw did the evidence prve the pints?What ways can be used t help evidence t prve the pints?
We can cite examples, facts, statistics, qutes, expert pinins, anecdtal evidence, persnal experience…
The authr cites examples and facts t prve the pints
Cause & effect:
Statistics:
Skim Text 2 and find:
Sea explratin is imprtant
Scientific research
Resurce management
The survival f mankind
Recmmendatin
manage the balance between sea prtectin and ecnmic needs
What wrds are used t help t explain the evidence?What’s the tense f these tw texts?
althugh/thugh, fr example, further, f curse, als, because, anther, …
The future tense & the present tense.
Read fr Language Features
1. Sea explratin has caused many prblems and will cntinue t cause mre.2. The ice will melt mre and this negative cycle will cntinue.3. If we d nt prtect it, future generatins will nt frgive us.4. Understanding mre abut the sea will als help us manage its resurces better.5. Of curse, there are still envirnmental risks.
1. Plastic pllutin is als bad…2. Althugh this was banned in 1982, sme cuntries are still "murdering" these…3. Fr example, scientific research ships can help address imprtant issues such as climate change.4. Of curse, there are still envirnmental risks. 5. Overfishing is anther prblem
What ther aspects f sea explratin are nt mentined?
Which argument d yu agree with mre? Why (nt)?
Why is the sea mre sensitive than we think?
Hw t make a gd balance between sea prtectin and explitatin?
Writing Task
Based n yur nte, write an argumentative essay n sea explratin, expressing yur pinins with supprting facts.
Add evidence
Use cnnectives
What is the purpse f sea explratin?
Hw des sea explratin help us t prtect the sea?
Hw des sea explratin cause damage t the sea?
Is there a gd balance between prtectin and explitatin?
Write yur draft and exchange it with a partner. Use the checklist t help each ther revise the drafts.
Althugh the ceans make up abut 70% f the earth’s surface, mre than 80% f the ceans remain unexplred. While sme peple say that we shuld nt explre the ceans, their reasning is nt very sund. Explring is nt the same as expliting. When we explre a place. We g just t see and understand what is there.We shuld explre the cean, first and fremst, because we d nt knw what we d nt knw. We thught we knew many abut the cean, but we were wrng. There culd be life frms in the cean, fr example, that fit nne f the neat categries we have fr life while we have n clue that they even exist.This brings up the secnd pint. We already knw many things abut the cean, but we need t learn mre. A gd example is cean acidificatin.
We knw that it is causing cral t die. We knw that using less fssil fuel wuld cause the prcess t slw dwn. Hwever, we need t learn mre t find ut hw t stp it. We need mre research t see what is ging n, and t cme up with plans and slutins.Finally, t d this research, we have t enter an extreme envirnment nt very friendly t humans. This requires the develpment f new technlgies that can als benefit us in ther areas. Fr example, in many ways, the deep cean resembles uter space.The technlgies can benefit each ther. Fr anther instance, the technlgy f a mechanical arm t cllect samples with has been used in factries and develpment f artificial limbs fr humans.All in all, there are many gd reasns t explre the ceans. If we care abut science, abut prtecting ur ceans, and abut develping new technlgies, we need t d all we can t supprt cean explratin.
假定你是某校的宣传委员李华，应邀为学校网站英文版写一篇有关海洋生物保护的文章，请根据以下要点写一篇短文。
1. 海洋受污染的现状;
2. 保护海洋的重要性。
4.注意使用连词以使文章连贯。
As we all knw, there are varieties f resurces under the sea. Hwever, the past ten years has witnessed that sme creatures have died ut. Therefre, marine pllutin has been greatly cncerned by the whle wrld.On the ne hand, we must make peple realize the imprtance f prtecting the cean. As a matter f fact, t prtect the cean is t prtect human beings. On the ther hand, the gvernment shuld take immediate measures t keep the balance f nature. In n way shuld we abandn prtecting the envirnment. Only by raising peple’s awareness f prtecting the envirnment and making great effrts t prevent pllutin can the prblem be slved.