Naturaldisasters教学目标：1Thepastcontinuoustensewith‘when’and‘while’2EnabletheSstouse‘when’and‘while’correctlywhentheytalkabouttheiractivities.教学重点：1.searchtheInternet,discuss…with…,planatriptoTangshan,onthesideoftheroad,driveyoutoschool,asusual,breakdown,aterriblesnowstorm2.Thepastcontinuoustensewith‘when’and‘while’教学难点：Thepastcontinuoustensewith‘when’and‘while’教具学具：Tape-recorder,slidesandsomepicturesaboutnaturaldisasters教学设计预习作业见学案教学活动过程展示探究Step1Presentation1.T:WhatwasMrWudoingwhenthesnowstormcame?(HelpSsanswer:Hewasreadingthenewspaperwhenthesnowstormcame./Whenthesnowstormcame,hewasreadingthenewspaper.)Underline‘when’togetmoreattention.2.Pairwork:Makeadialogue:A:(toB)Whatwereyoudoingwhentheteachercameintotheclassroom?B:…(thentoC)Whatwereyoudoingwhentheteachercameintotheclassroom?C:…(thentoD…)3.ShowmoresentencestotheSs:Simonwashavingbreakfastwhenthesnowstormcame.SandywaswaitingforataxionthesideoftheroadwhenMilliesawher.4.Introduce:WhileSimonwashavingbreakfast,thesnowstormcame.ORThesnowstormcamewhileSimonwashavingbreakfast.ThenasktheSstochangetheabovesentenceswith‘while’.5.Aftercheckingtheanswers,introduce:SandywaswaitingforataxiwhileMilliewaswalkingtothebusstop.ThenasktheSstomakesentenceswith‘while’e.g.watchTV,cookdinner;readabook,playcards;6.Tosumuptherules:(1)Whensomethingelsehappenedwhilealongeractionwasgoingon,weuse‘when’or‘while’tojointhetwoactions.Weusethepastcontinuoustenseforthelongeractionandthesimplepasttensefortheshorteraction.(2)Whentwolongactionswentonatthesametime,wecanusethepastcontinuoustenseinbothclausesand‘while’tojointhem.完成学案中的二Step2PartB1.GothroughtheexampleonPage101withtheSsandaskthemtofinishitquicklybythemselves.Thenchecktheanswerstogether.2.AsktheSstoreadthefivesentencestogether.课堂检测见学案
