高中英语 Unit2 Healthy Eating教案1 新人教版必修3.docx

高中英语 Unit2 Healthy Eating教案1 新人教版必修3.docx

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高中英语Unit2HealthyEating教案1新人教版必修3

教材章节

UnitTwo

课题

HealthyEating

课型

Grammar

教

学

目

标

知

识

与

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

与

方法

Understandthroughreadingthematerialsanddiscussions.

Basedonunderstanding,guideduseofthemodalverbsinsimulatedsituations.

Independentpracticeforconsolidation.

情感

态度

与

价值观

Communicationisnotonlytocommunicatefactsbutalsomoodsandfeelings.

Goodcommunicationofmoodsandfeelingsisamostimportantpartofeffectivecommunication.

教

学

设

计

重点难点分析

Functionandpropertiesofmodalverbs.

Practicaluseofmodalverbs.

教学

技术

设备

Multi-media

教

学

环

节

学

习

目

标

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";and"Ifthisworks,youshouldnotfeelathing"meansroughly,"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