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)選擇性必修第四冊(cè)第二單元L

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課時(shí)授課內(nèi)容1Getting

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A1Reading

A/VocabularyFocus1Reading

A/GrammarinUse1.5Listening,Viewingand

Speaking1ReadingB0.5CriticalThinking1Writing1FurtherExploration/Self-assessment單元封面《

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(

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)選擇性必修第四冊(cè)第二單元2.根據(jù)概要寫(xiě)作策略完成“問(wèn)題-解決方法”結(jié)構(gòu)的篇章概要寫(xiě)作;writeasummaryof

aproblem-solutionessaybyreferringtorelatedwritingstrategies;;3.在老師的幫助下，根據(jù)評(píng)價(jià)指標(biāo)對(duì)概要寫(xiě)作作品進(jìn)行自

評(píng)和互評(píng)并且提出建設(shè)性的改進(jìn)意見(jiàn)。makecommentsandgivesuggestions

on

a

summaryin

termsof

A（accuracy）、B（briefness）、C（coherence）withthehelpof

a

checklist..學(xué)習(xí)目標(biāo)

Learning

Objectives：Attheendof

the

lesson,

you

will

be

able

to

...1.

掌握“問(wèn)題-解決方法”結(jié)構(gòu)的篇章概要寫(xiě)作技巧;masterthebasicskillsof

writingasummaryof

aproblem-solution

essay;;Read

and

think

:

What

is

summary

writing?“Directions:Readthe

following

passage,summarizethemainidea

andthemain

points

of

the

passagein

nomorethan

60words.

Use

yourown

words

as

faras

possible.

”P(pán)aragraph

1:Topicsentences:

Decisions

in

lifeare

rarely

blackandwhite

but

usuallyinvolvesshadesofgray.

Economists

usetheterm“marginalchanges”to

describe

minor

adjustmentstoanexistingplan

ofaction.Supportingdetails:(1)Atdinnertime,thedecisionyouface

is

not

betweenfasting

and

eating

likea

pig,butwhethertotakethatextraspoonfulof

mashed

potatoes.(2)Whenexamsrollaround,yourdecision

is

notbetween

blowing

themoffandstudying24

hoursaday,

butwhethertospendan

extra

hour

reviewingyour

notes

insteadofwatchingTV.Paragraph2:Topicsentence:

Inmanysituations,

peoplemakethe

best

decision

by

thinkingatthe

margin.Supportingdetails:Suppose,forinstance,thatyouaskafriend

for

advice

about

howmanyyearstostay

inschool.

Ifhecompares…isworthwhile.Paragraph3:Topicsentence:Arationaldecision-makertakesanaction

ifand

only

ifthe

marginal

benefitoftheactionexceedsthemarginal

cost.Read

the

essay“Rational

People

Think

at

the

Margin

”

and

findthe

topic

sentence(s)and

supporting

details

of

each

paragraph.Rational

PeopleThinkatthe

MarginProblemWeoftenfacethe

problemofhowto

makesmalladjustmentstoanexistingplan.SolutionPeople

makethebest

thinkingat

the

margin.EvaluationArationaldecision-makertakesanaction

ifthe

marginal

benefitsoftheactionexceeds

the

marginalcost.Interactiveactivity:Readtheessay

again

and

discuss

with

group

memberstoworkoutthe

problem

and

solution

in

the

essay.keywords,expressionsandsentencepatternsParaphrasedversionsminoradjustmentssmalladjustmentsexceedoutweighevaluateassessEconomists

usetheterm“marginal

changes”todescribe

minoradjustmentstoanexisting

planofaction.Whensmalladjustmentsare

needed

inanexisting

plan,weoften

make

“marginalchanges”

.Peoplemakethe

bestdecision

by

thinkingatthe

margin.Thinkingatthemargin

helps

people

makethebest

decisions.Arationaldecision-makertakesanaction

ifandonly

ifthemarginalbenefitsoftheactionexceedsthemarginalcost.Onlywhenthemarginal

benefits

outweighthemarginal

costwill

a

rational

individualtakeanaction.List

keywords

,expressionsandsentencesthat

can

presenttheauthor’sviewand

try

to

paraphrasethem.Write

a

summary

of

the

essay

“Rational

People

Think

atthe

Margin”,using

A（accuracy）、B（briefness）、C

（coherence）strategies.Sample

version：Economists

use

the

turn“marginalchanges”to

describe

minor

adjustments

to

an

existing

planof

action.Thinking

at

the

margin

helps

people

make

thebestdecisions.Bycomparingthemarginalbenefitsandmarginalcosts,individualscanmakebetterdecisions.Checklistforsummarywritingofaproblem-solutionessay()

1.

Is

the

problem

properly

stated?()2.

Is

the

solution

properly

presented?()3.

Is

the

evaluation

clearly

stated?()4.Are

the

key

words,expressions

and

sentences

in

theessay

properly

paraphrased?()5.

Is

the

content

of

the

essay

accurately

stated?()6.

Is

the

content

of

the

essay

briefly

stated?()7.

Is

the

content

of

the

essay

coherently

stated?Interactiveactivity:makecommentsandgivesuggestionson

a

summaryin

terms

of

A（accuracy）、

B（briefness）、

C（coherence）

with

thehelpofachecklist

and

the

teacher.Improvementsuggestions:The

problemshould

beclearlystatedstartingwith

We

often

face

a

problemof…Theevaluationshould

be

added.Keywords,expressionsandsentences

inthe

essay

should

be

properlyparaphrased：Economists

use

the

turn“marginalchanges”to

describe

minor

adjustments

toan

existingplan

ofactioncan

be

paraphrasedas

Whensmall

adjustmentsare

neededinanexisting

plan,

we

often

make

“marginalchanges”.Thesummaryshould

bedevelopedcoherently:problem-solution-evaluation.Polishthesummaryandsharethe

improved

version

withthe

whole

class.Improved

version:We

are