高中英语 Unit3 protecting ourselvesVIP免费

Unit3ProtectingourselvesTaskWritinganarticlewithadviceandwarningsGeneralIntroduction:Inthissection,youwillhaveopportunitiestopracticeyourlistening,speaking,readingandwritingskills.Thetasksectionisdividedintothreestepsandeachstepisprecededwithaskillsbuildingactivity.Throughthethreesteps,youwilllearnhowtoidentifydegreesofobligationandcategorizenotesaboutwarnings,howtoaskforandofferalternativesandhowtowritewarnings.Afterthelearning,youareexpectedtowritefortheschoolnewsletteranarticlecontainingadviceandwarningsonthedangersoftakingmedicineunnecessarily.Skillsbuilding1:identifyingdegreesofobligationInthispart,wewilllearnhowtoidentifythedegreeofobligationwhenlisteningtoadvice.Youshouldjudgewhethertheadviceisasuggestionoranecessitythroughthemodalformorphraseusedinthesentence.Lookatthefollowingsentencepatterns:Youdonothaveto…Youought(not)to…Youshould(not)…Youhadbetter/hadbetternot…Youhaveto…Youmust/mustnot…Doyouknowwhichpatternexpressesthestrongestobligation,whichexpresseslessstrongobligationandwhichexpressestheleaststrongobligation?Let’sgoontolookatsomesentencesanddecidewhicharesuggestionsandwhicharenecessities.1.Youdon’thavetogoschooltomorrowifyouarefeelingill.2.Yououghttoeatsomefruiteveryday3.Youhadbetterwakeupearliertomorrow.4.Youmustnotforgettodoyourhomework.5.Youshouldgetenoughresteverynight.6.Youmustnotforgettodoyourhomework.7.Yououghtnottoeatsomuchicecream.8.Youshouldnotplaycomputergamesallevening.9.Youhavetotakemedicineifyouwanttogetbetter.10.Wemustfinishourprojecttodaybecauseitisduetomorrow.(Encouragestudentstogivetheirownopinions.Anyreasonableanswersareacceptable)Step1:CategorizingnotesaboutwarningsInthispart,youwilllistentoalecturebyDrGreyandwritedownthemodalformsthedoctoruses,andthencategorizetheobligationlevelsofthedoctor’sadvice.1.ReadtheguidelinesandthesentencesinPartA.(givethemsomenecessaryexplanationstosomenewwords.)Whatdoestheword‘chemist’s’meanfromthecontextofthewholesentence?(Itisaplacewheremedicineissold.)Whatdoestheword‘painkiller’mean?(Thefirstpartofthewordis‘pain’,andthesecondpartis‘killer’,sowecanknowthat‘painkiller’referstoakindofmedicinethatcanbeusedtostoponefeelingpain.)Canyouguessthemeaningoftheword‘prescription’?(fromthefollowingsentence’…talktoyourdoctor…’wecanlearnthat‘prescriptiondrugs’areonesthatweshouldbecarefultakingbecausetheycouldbedangerousifusedincorrectly.)2.Let’slistentothefirstpartofthelecturebyDrGreyandfindmodalformsusedforSentences1to9.TapescriptDrGrey:Iamheretodaytotalktoyouaboutthedangersoftakingunnecessarymedicines.Weliveinaworldwheremanythingsmoveataveryfastspeed,andsometimespeopleexpecttheirbodiestodothingsquicklyaswell.However,youshouldrealizethathumanbodiesarenotmachines;machinescanbefixedinahurrywhentheyarebroken,butbodiescannotbe.Somepeopleruntothechemist’severytimetheyareill,askingformaquickcurewhentheirbodiesjustneedsomerest.Forinstance,youdonothavetotakeanymedicineforacommoncold.Youshouldjustgetenoughsleep,drinkalotofwaterandkeepwarmtocureacommoncold.Peoplemustlearnthatmedicinessoldatthechemist’smightbeverystrongandmustbeusedcarefully.Eventhesimplestmedicinescanhaveserioussideeffects.Takepainkillersasanexample.Youmustnottaketoomanyofthemastheycandamageorganslikethestomachandtheliver.Anotherdangeroftakingunnecessarymedicinesisthatapersoncouldtakeadangerouscombinationofprescriptiondrugs.Yousho...