高中英语 Unit2 Healthy Eating教案1 新人教版必修3Word格式文档下载.docx
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能
力
知识内容
Modalauxiliaryverbsgivemoreinformationaboutthefunctionofthemainverbthatfollowsit.Theirfunctionscanallberelatedtoascalerangingfrompossibility(can)tonecessity(must).
等级水平
(A)识记
(B)理解
(C)应用
(D)分析
(E)综合
(F)评价
能力目标
Usepropermodalverbstoexpresscertainmoodsarisenindifferentlanguagesituations.
过程
方法
Understandthroughreadingthematerialsanddiscussions.
Basedonunderstanding,guideduseofthemodalverbsinsimulatedsituations.
Independentpracticeforconsolidation.
情感
态度
价值观
Communicationisnotonlytocommunicatefactsbutalsomoodsandfeelings.
Goodcommunicationofmoodsandfeelingsisamostimportantpartofeffectivecommunication.
设
计
重点难点分析
Functionandpropertiesofmodalverbs.
Practicaluseofmodalverbs.
教学
技术
设备
Multi-media
环
节
习
1、学习的主要知识
Functionandusageofmodalverbs.
2、需要掌握的方法
Situationcenteredpractice
课
题
概
述
本节知识的主要意义
Goodcommunicationofmoodsandfeelingswithmodalverbsisamostimportantpartofeffectivecommunication.
本节知识在知识体系中的地位和联系
“Modalverb+do”isoneofthewaysoffivewaysofhowthepredicateisformed.
石家庄市第一中学教案
教学环节
分析讲解
学生活动设计
Stepone
Introduction
IntheEnglishlanguage,amodalverbisanauxiliaryverbthatcanbeusedtochangethegrammaticalmoodofasentence.Thekeywaytoidentifyamodalverbisbyitsdefectiveness(theyhaveneitherparticiplesnorinfinitives).
ThemodalverbsinEnglishareasfollows,pairedaspresentandpreteriteforms:
shallandshould
willandwould
mayandmight
canandcould
must
Thefollowingarenotmodalverbsbutmaybeusedforasimilarpurpose:
oughttoandhadbetter
usedto
dareandneed
do
goingto
haveto
Howthemodalverbsareused(I)
Shallandwill
Shallisusedinmanyofthesamesensesaswill,thoughnotalldialectsuseshallproductively,andthosethatusebothshallandwillgenerallydrawadistinction(thoughdifferentdialectstendtodrawdifferentdistinctions).Instandard,perhapsold-fashionedEnglish,shallinthefirstperson,singularorplural,indicatesmerefuturity,butinotherpersonsshowsanorder,commandorprophecy:
"
Cinderella,youshallgototheball!
"
Itis,therefore,impossibletomakeshallquestionsinthesepersons.Shallwe?
makessense,shallyou?
doesnot.
Shallderivesfromamainverbmeaningtoowe,andindialectsthatusebothshallandwill,itisoftenusedininstanceswhereanobligation,ratherthananintention,isexpressed.
Shallisalsousedinlegalandengineeringlanguagetowritefirmlawsandspecificationsasintheseexamples:
Thoseconvictedofviolatingthislawshallbeimprisonedforatermofnotlessthanthreeyearsnormorethansevenyears,"
and"
Theelectronicsassemblyshallbeabletooperatewithinitsspecificationsoveratemperaturerangeof0degreesCelsiusto70degreesCelsius."
Should
Shouldiscommonlyused,evenindialectswhereshallisnot.Thenegationis"
shouldnot"
(orthecontraction"
shouldn'
t"
).
Shouldcandescribeanidealbehaviouroroccurrenceandimpartsanormativemeaningtothesentence;
forexample,"
Youshouldneverlie"
meansroughly,"
Ifyoualwaysbehavedperfectly,youwouldneverlie"
;
Ifthisworks,youshouldnotfeelathing"
Ihopethiswillwork.Ifitdoes,youwillnotfeelathing."
Indialectsthatuseshallcommonly,however,thisrestrictiondoesnotapply;
forexample,aspeakerofsuchadialectmightsay,"
IfIfailedthattest,IthinkIshouldcry,"
meaningthesamethingas,"
IfIfailedthattest,IthinkIwouldcry."
Insomedialects,itiscommontoformthesubjunctivemoodbyusingshould:
Itisimportantthatthelawshouldbepassed"
(whereotherdialectswouldsay,"
Itisimportantthatthelawbepassed"
)or"
Ifitshouldhappen,wearepreparedforit"
(or"
Shouldithappen,wearepreparedforit"
whereearlyModernEnglishwouldsay,"
Ifithappen,wearepreparedforit,"
andmanydialectsoftodaywouldsay,"
Ifithappens,wearepreparedforit"
Mayandmight
Mayandmightdonothavecommonnegativecontractions(equivalentstoshan'
t,won'
t,can'
t,couldn'
tetc),althoughmightn'
tcanoccurinaskingquestions.("
Mightn'
tIcomeinifItookmymuddybootsoff?
asareplyto"
Don'
tcomeinhere!
You'
llgetthefloordirty!
)
Bothformscanbeusedtoexpressapresenttimepossibilityoruncertainty("
Thatmaybe."
).Mightandcouldcanalsobeusedinthissensewithnopasttimemeaning.Mightandmaywouldcarrythesamemeaningin"
Johnisnotintheofficetoday,andhecouldbesick."
Mayisalsousedtoexpressirrelevanceinspiteofcertainorlikelytruth:
HemaybetallerthanIam,butheis