学术英语 社科 academic english for social sciences. unit 1 decision-making behaviors in...
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学术英语 社科Academic English for Social Sciences
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Unit 1 Decision-Making Behaviors in Economic Activities
• Lead-in• Text A • Text B• Listening • Speaking• Writing
Unit Contents
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• Lead-in
– Reading critically:
questions for discussion
Unit 1 Decision-Making Behaviors in Economic Activities
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Lead-inReading critically: questions for discussion
Reading critically:Every text is written on a purpose, some are supposed to make you believe. It is important to learn to read critically to get the point. One way of training critical reading is to ask yourself the following questions:
Do you agree with the author?
Unit 1 Decision-Making Behaviors in Economic Activities
What is the author assuming I will agree with?
What is the author trying to prove?
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Lead-in
Reading critically: questions for discussion
Does the author adequately defend their argument?
What kind of proof do they use?
Unit 1 Decision-Making Behaviors in Economic Activities
Is there something they leave out that you would put in?
Does putting it in hurt their argument?
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Lead-inReading critically: questions for discussion
Discuss the following questions:
How do you make the decision that you take this course?
What do you consider when you make this decision?
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• Text A
– Key terms
– Critical reading and thinking
– Difficult sentences
– English language for
academic purpose• Specialized vocabulary• Collocations• Formal and informal English• Signpost language
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Text AKey terms
rational people: 理性人 Those people who systematically and purposefully do the best they can to achieve their objectives, given the available opportunities.
Unit 1 Decision-Making Behaviors in Economic Activities
marginal change: 边际变化 small incremental adjustments to a plan of action
marginal benefit: 边际效益 the additional benefit from an increase in an activity
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Text AKey terms
Unit 1 Decision-Making Behaviors in Economic Activities
marginal cost: 边际成本 the additional cost from an increase in an activity
marginal decision-making: 边际决策 the additional cost from an increase in an activity
incentive: 激励 something that induces a person to act
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How People Make Decisions
Economists’ explanation about decision making: There are rules behind people’s decision-making behaviors.
Text ACritical reading and thinking
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Rational people think at the margin.
Text ACritical reading and thinking
Unit 1 Decision-Making Behaviors in Economic Activities
Example 1: standby ticketsWhat a rational airline can do?
Situation: Flying a 200-seat plane across the U.S. costs the airline $100,000.
Cost of each seat: $500 (That’s to say, never sell a ticket for less than $500.)
Suppose: A plane is about to take off with 10 empty seats. A standby passenger will pay $300 for a seat.
Question: should the airline sell the ticket?
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Answer: Yes.Reason: If the plane has empty seat, the cost of adding one more passenger is tiny. Here the marginal cost is merely the cost of something to eat, like peanuts, coco, etc.
Conclusion: As long as the standby passenger pays more than the marginal cost, selling the ticket is profitable.
Text ACritical reading and thinking
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Example 2: water vs. diamond
Why is water so cheap, while diamonds are so
expensive?
water diamond
Necessary for survival
The marginal benefit of an extra cup is small because water is plentiful.
Unnecessary for survival
The marginal benefit of an extra diamond is large because diamonds are rare.
Unit 1 Decision-Making Behaviors in Economic Activities
Text ACritical reading and thinking
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Text ACritical reading and thinking
Unit 1 Decision-Making Behaviors in Economic Activities
Conclusion: Rational people think at the margin. (They make decisions by comparing costs and benefits.) Are you a rational person?
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Example 1: the price of an appleHow people respond to incentives?
When the price rises: It provides an incentive for buyers to consume less; It provides an incentive for sellers to produce more.
Text ACritical reading and thinking
Unit 1 Decision-Making Behaviors in Economic Activities
Rational people respond to incentives.
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Example 2: a tax on gasoline How people respond to incentives? Encourage people to □ drive small, more fuel-efficient cars; □ carpool □ take public transportation; □ live closer to where they work; □ drive hybrid cars; □ drive electric cars.
Text ACritical reading and thinking
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Example 3: a seat belt law
American laws require seat belts as standard equipment on new cars.
How a seat belt law alters a driver’s cost-benefit calculation (Peltzman’s analysis):Seat belts reduce the likelihood of injury or death → make accidents less costly → drive faster and less carefully → a large number of accidents
Text ACritical reading and thinking
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Result: These laws produce both fewer deaths per accident and more accidents. Conclusion 1: The net result is little change in the number of driver deaths and an increase in the number of pedestrian deaths.
Conclusion 2: When analyzing any policy, consider both the direct effects and less obvious indirect effects.
If the policy changes incentives, it will cause people to alter their behavior.
Text ACritical reading and thinking
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→ Rational people know that when they make a decision, it is often not a yes-or-no choice, but requires deliberate consideration of the pros and cons.
Text ADifficult sentences
Unit 1 Decision-Making Behaviors in Economic Activities
Rational people know that decisions in life are rarely black and white but usually involve shades of gray. (Para. 2)
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→ The most important theory in economic study concerns itself with incentives. Other theories are not as important. “The rest is commentary” is a phrase used in American English to mean “the rest is trivial or less important”.
Text ADifficult sentences
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“People respond to incentives. The rest is commentary.” (Para. 6)
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→ At first, this discussion of incentives and seat belts might seem like random talk not supported by evidence.
Text ADifficult sentences
Unit 1 Decision-Making Behaviors in Economic Activities
At first, this discussion of incentives and seat belts might seem like idle speculation. (Para. 12)
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Specialized vocabulary
rational people
marginal decision-making
marginal change
marginal benefit
marginal cost
net result
Text AEnglish language for academic purpose
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Collocations
Text AEnglish language for academic purpose
Unit 1 Decision-Making Behaviors in Economic Activities
achieve the high level of satisfaction maximize profits achieve objectives be black and white roll round blow off fly standby puzzling economic phenomena take an action allocate scarce resources end up with unintended consequences idle speculation
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Formal and informal English
See Page 9, and do Task 3.
Text AEnglish language for academic purpose
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Signpost language
Show connections between sentences and paragraphs. See Page 9, and do Task 2
Text AEnglish language for academic purpose
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Signpost language
Text AEnglish language for academic purpose
Unit 1 Decision-Making Behaviors in Economic Activities
Signal important parts of academic writing, such as structure, writer’s position, arguments, conclusion
Reporting someone’s view: Some people/researcher(s) maintain(s) / argue(s) / assert(s) / claim(s) / point(s) out…
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Signpost language
Disagreeing with someone’s view:
I disagree with… that
The view is open to doubt / not necessarily true /
highly debatable…
One of the main argument against… is that
Text AEnglish language for academic purpose
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Signpost language
Pointing out a gap in research:
However little information…
These studies have emphasized…, as opposed
to…
Although considerable research has focused on…,
less attention has been given to…
Text AEnglish language for academic purpose
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Signpost language
Agreeing with someone’s view:
I agree with… when he writes that…
X is certainly correct in saying that…
Another point in favour of… is…
A further argument supporting… is…
NB: In the following units of study, more examples will be given.
Text AEnglish language for academic purpose
Unit 1 Decision-Making Behaviors in Economic Activities
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Task 1 The tree diagram below illustrates the main points of the text. Fill in the blanks according to the text.
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic Activities
Decision-making behaviors in economic activities
Thinking at the margincomparing marginal ________ and marginal __________
Responding to __________
Example 1standby tickets
Critical reading and thinking
Example 2______ vs. _________
Example 1the price of
an apple
Example 2a tax on
_________
Example 3_________
____
costbenefits
waterdiamonds
incentives
gasolineseat belts
law
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Task 2 Decide whether the following statements are true (T) or false (F).
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesCritical reading and thinking
F___ 1 When rational people make decisions in life, they are
very certain of the choice.
___ 2 At the time of examination, students have to decide
how to use all their time studying.
___ 3 Marginal changes are small gradual changes of the
present plan of action.
___ 4 The example of the standby fly is told to show how cost
can be ignored.
___ 5 Diamonds are more expensive than water because
people are more attracted to them.
F
F
F
T
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Task 2 Decide whether the following statements are true (T) or false (F).
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesCritical reading and thinking
T___ 6 The quotation of one economist “People respond to
incentives. The rest is commentary.” is given to show
the importance of incentives.
___ 7 The example of the apple shows how food prices vary
according to market needs.
___ 8 The gasoline tax has an effect on people’s choice of
cars.
___ 9 When the seat belt is made compulsory, people drive
more carefully.
___ 10 Policymakers need to take into consideration the less
obvious indirect effects of a policy.
F
F
F
T
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Task 1 Specialized vocabulary
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
1 Match the words in Column A with those in Column B and then translate the phrases you have got into Chinese.
Column A Column B
1 marginal a resource
2 scarce b result
3 maximize c change
4 net d satisfaction
5 level of e people
6 rational f profit
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Task 1 Specialized vocabulary
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
1 Match the words in Column A with those in Column B and then translate the phrases you have got into Chinese.
1 ____________________________________________
2 ____________________________________________
3 ____________________________________________
4 ____________________________________________
5 ____________________________________________
6 ____________________________________________
marginal change 边际变化scarce resources 稀缺资源maximize profits 最大化利润
net result 净结果level of satisfaction 满意度
rational people 理性人
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Task 1 Specialized vocabulary
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
2 Translate the following sentences into English, using some of the phrases above.
1 我们明年的目标是获得利润最大化。 _______________________________________________
2 时间是一种稀缺资源,因此如果工人失业,他们的时间就浪 费了。 _______________________________________________ _______________________________________________
We aim to maximize profits over the next year.
Time is a scarce resource, so if workers are unemployed their time is wasted.
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Task 1 Specialized vocabulary
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
2 Translate the following sentences into English, using some of the phrases above.
3 理性人有非理性的想法吗? _______________________________________________
4 满意度调查结果表明游客对某些服务不满意。 _______________________________________________ _______________________________________________
Do rational people have irrational thoughts?
Research into satisfaction level has found that tourists are not satisfied with some of the services.
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Task 2 Signpost language
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
1 Match the signpost language from Text A with the purpose each of them serves.
Signpost language Purposes
1 as we will see a explanation
2 at the same time b time sequence
3 by contrast c giving examples
4 for example d comparison and contrast
5 in other words e coherence
6 in this case
1 __ 2 __ 3 __ 4 __ 5 __ 6 __e b d c a e
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Task 2 Signpost language
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
2 Complete the following sentences using the signpost language listed above.
1 He is not well-known for his respect for factual accuracy,
_____________, he was lying.
2 Offices can easily become more environmentally-friendly
by, ___________, using recycled paper.
3 We don’t like the situation. But _______________, we
have to deal with this problem.
in other words
for example
at the same time
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Task 2 Signpost language
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
2 Complete the following sentences using the signpost language listed above.
4 Their economy has expanded enormously, while ours,
___________, has declined.
5 _____________, in this chapter there is no general
formula for the solution to this question.
6 The whole team don’t want to lose him. ___________,
he needs to realize that company regulations must be
obeyed.
by contrast
As we will see
In this case
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Task 3 Formal English
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
1 Replace the underlined words in the following sentences with the more formal ones from Text A.
1 As you study economics, you will come across firms that
decide how many workers to hire and how much of their
product to manufacture and sell to maximize profits.
Key: ___________
2 The reason is that a person’s willingness to pay for any
good is based on the marginal benefit that an extra unit
of the good would produce.
Key: ____________
encounter
yield
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Task 3 Formal English
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
1 Replace the underlined words in the following sentences with the more formal ones from Text A.
3 An incentive is something that persuades a person to
act,
such as the prospect of a punishment or a reward.
Key: ___________
4 Many policies change the costs or benefits that people
face and, therefore, change their behavior.
Key: ____________
5 For example, consider public policy about auto safety.
Key: ____________
induces
alter
regarding
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Task 3 Formal English
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
1 Replace the underlined words in the following sentences with the more formal ones from Text A.
6 The decline in safe driving has a clear, bad impact on pedestrians. Key: ___________
7 At first, this discussion of incentives and seat belts might seem like an idle guess. Key: ____________
8 When a person wears a seat belt, the likelihood of surviving an auto accident rises. Key: ____________
adverse
speculation
probability
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Task 3 Formal English
Text ASuggested answers
Unit 1 Decision-Making Behaviors in Economic ActivitiesLanguage building-up
2 Complete the sentences with some of the answers you have got in the above exercise.
1 Stress can have a(n) ________ effect on people’s health.
2 This doesn’t _____ the fact that what you did was wrong.
3 He warned us that we might __________ a lot of
opposition at the very beginning.
4 Some believe that surgery could _______ a heart attack.
5 He has very little to say _________ the new EU
regulations.
6 Knowing about the past doesn’t necessarily _____
solutions to current problems.
adverse
alter
encounter
induce
regarding
yield
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• Text B
– Critical reading
– Difficult sentences
– English language for academic purpose
Unit 1 Decision-Making Behaviors in Economic Activities
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New Airport Landing Fees Delayed
See Page 14, and do Task 1 and Task 2
Text BCritical reading
Unit 1 Decision-Making Behaviors in Economic Activities
A new federal policy: allowing airports to charge higher landing fees during peak periods
Reason for formulating this policy: encourage airlines to arrange flights more evenly throughout the day, thus reducing flight delays
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Text BCritical reading
Unit 1 Decision-Making Behaviors in Economic Activities
Costs Benefits
Airports
Airlines
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Text BCritical reading
Unit 1 Decision-Making Behaviors in Economic Activities
Your reflections on this policy:
It will work:
It won’t work:
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…, which last month called the proposal “congestion pricing disguised as an airport fee”. (Para. 13)
Text BDifficult sentences
Unit 1 Decision-Making Behaviors in Economic Activities
→ …, which claimed that the proposal was actually charging fee for congestion rather than for the airport.
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“Because the central policy issue at stake here – influencing airline market decisions through airport pricing – is inherently complex and historically has been controversial, we believe that it merits additional time to fully develop comments reflecting the views of industry stakeholders,” (Para. 14)
Text BDifficult sentences
Unit 1 Decision-Making Behaviors in Economic Activities
→ “The central policy issue which is how to influence airline market decisions through airport pricing has always been complex and controversial. Hence it is necessary to allow more time for the parties involved in the industry to phrase their opinions that most clearly express their views.”
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Collocations
reduce / address congestion
charge higher landing fees
peak periods
reduce delays
take effect
implement measures
Text BEnglish language for academic purpose
Unit 1 Decision-Making Behaviors in Economic Activities
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Collocations
traffic volume
on-time arrival rate
be supportive of
accommodate requests
clear up ambiguity
go into effect
Text BEnglish language for academic purpose
Unit 1 Decision-Making Behaviors in Economic Activities
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• Listening
– Prediction strategies
– Listening tasks
Unit 1 Decision-Making Behaviors in Economic Activities
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Prediction strategies
Prediction
Instead of relying on the actual words or
sounds, you use background information and
common world knowledge to develop
expectations about what you will hear and
then confirm or reject them as you listen.
ListeningUnit 1 Decision-Making Behaviors in Economic Activities
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Prediction strategies
ListeningUnit 1 Decision-Making Behaviors in Economic Activities
Prediction strategies
Use visual information including titles on the board, on slides, or in a PowerPoint presentation.
Think about what you already know about the topic.
Ask yourself questions that you think the speaker might answer.
Listen for specific phrases.
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Task 1 Before listening, look at the first sentence of the lecture you are going to hear and predict what will follow. Write down your expectation.
ListeningUnit 1 Decision-Making Behaviors in Economic Activities
Businesses are structured in different ways to meet different needs.
The simplest form of business is called an individual
or sole proprietorship. The proprietor owns all of the
property of the business and is responsible for
everything.
Listening tasks
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Task 2 Listen to the lecture again and complete the following table according to what you have heard.
ListeningUnit 1 Decision-Making Behaviors in Economic Activities
Listening tasks
Forms of business
Ownership Responsibility for debts
Length of existence
______________________Proprietorship
____________ owner fully responsible
________________________________________________________________
Partnership _______________________________________
________________________
________________________________________________________________
___________ _______________________________________
____________________________________
an unlimited lifetime
Individual / sole
Corporation
sole owner
limited liability partnership
shares of ownership by stock holders
partly responsible
share holders not responsible
exist only for as long as the owners remain alive
exist only for as long as the partners remain alive
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Task 3 Listen to the lecture a third time and choose the correct answer to each of the following questions.
ListeningUnit 1 Decision-Making Behaviors in Economic Activities
1 Which of the following descriptions fits an individual
proprietorship?
A The owner has to pay any debts alone.
B The company goes bankrupt when the owner dies.
C The owner keeps all the profits with his family.
D The owner cannot borrow money.
Key: ___
Listening tasks
A
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Task 3 Listen to the lecture a third time and choose the correct answer to each of the following questions.
ListeningUnit 1 Decision-Making Behaviors in Economic Activities
2 What is a must when two people go into business together?
A They must share equal responsibility.
B They must not be husband and wife.
C They must decide how to share the partnership.
D They must be doctors, lawyers or accountants.
Key: ___
Listening tasks
C
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Task 3 Listen to the lecture a third time and choose the correct answer to each of the following questions.
ListeningUnit 1 Decision-Making Behaviors in Economic Activities
3 What is true of a corporation?
A It is owned by directors.
B It always sells stocks.
C It pays its shareholders rewards every year.
D It is an independent legal being.
Key: ___
Listening tasks
D
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• Speaking
– Useful expressions
– Researching
Unit 1 Decision-Making Behaviors in Economic Activities
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Useful expressions
1. Can you go over the bit about… again? Could you go over the bit about… again?
2. Could you repeat…? I wonder if you could repeat…?
See more on Page 19, and do Task 1 and Task 2.
SpeakingUnit 1 Decision-Making Behaviors in Economic Activities
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Researching
Form groups of 4-5 and research the policies concerning traffic jam in the cities of Beijing, Shanghai, London, Tokyo, and New York.
Write a summary of your findings and present it to the class.
SpeakingUnit 1 Decision-Making Behaviors in Economic Activities
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SpeakingUnit 2
Economist
Ask Ss to discuss criteria of an effective presentation, then decide on the criteria to evaluate each other’s presentations. You can consider the following:
• The message Remember the ultimate end of a presentation is the
message. • Structure Organize your talk in a clear way and indicating or
showing the structure to the audience is very important and helpful to make an effective presentation because that makes comprehension easier.
Making an effective presentation
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SpeakingUnit 2
EconomistMaking an effective presentation
• Timing
Learn to put how much into whatever a time slot is always an important skill for a speaker.
• Communication with audience
Are you having eye contact with the audience? Are you just reading out your writing?
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SpeakingUnit 2
EconomistMaking an effective presentation
• Visual Aids
Are the PPT slides too fancy, distracting? Are they meaningful?
• Signpost Language
Do you use signpost language to help the audience?
• Language
Do you use the language precisely?
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• Writing
– Choosing a topic
Unit 1 Decision-Making Behaviors in Economic Activities
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Choosing a topic
Learn the writing strategies on Page 20.
Do Task 1 on Page 20.
Find some topics from academic journals and make comments after class.
WritingUnit 1 Decision-Making Behaviors in Economic Activities
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Do the following tasks:
1. Find out the main points of Text A.
2. Make comparison between economists and scientists in terms of how they work.
3. Mark the specialized vocabulary and explain them.
4. Underline the collocations you think important.
Get ready for Unit 2Unit 1 Decision-Making Behaviors in Economic Activities