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情态动词GrammarFocusLesson1如何表达「一定」？Thinkaboutthequestion.Shemustbeatleastthirty-fiveyearsold.Readandsayth

enumber.1234Intheplay,shemustappearinabrightreddressandlongblackstockings.Readandsaythenumber.1234Jenniferwillhaveto

takepartinanewplaysoon.Readandsaythenumber.1234Lastyearinanotherplay,shehadtowearshortsocksandabright,orange-coloreddress.1234Readandsaythenu

mber.Drawtheconclusions.Shemustbeatleastthirty-fiveyearsold.Intheplay,shemustappearinabrightreddressandlongblackstockings.Jenniferwillhav

etotakepartinanewplaysoon.Lastyearinanotherplay,shehadtowearshortsocksandabright,orange-coloreddress.Drawthecon

clusions.表示义务：must意为「必须」表示推测：must意为「一定」Shemustbeatleastthirty-fiveyearsold.Intheplay,shemustappearinab

rightreddressandlongblackstockings.Jenniferwillhavetotakepartinanewplaysoon.Lastyearinanotherplay,shehadtowearshortsocksandabright,orange-co

loreddress.Drawtheconclusions.haveto可与多种时态连用，但只能表示「必须」。Shemustbeatleastthirty-fiveyearsold.Intheplay,shemustappearinabrightreddressandlongbla

ckstockings.Jenniferwillhavetotakepartinanewplaysoon.Lastyearinanotherplay,shehadtowearshortsocksandabright,orange-col

oreddress.ExercisesA:Splitthesentences.Shemustbeoverforty.Shemustbeoverforty.WhoActionWhatHowWhereWhenExercisesA:Splitth

esentences.Youhavetoworkhard.WhoActionWhatHowWhereWhenYouhavetoworkhard.ExercisesA:Splitthesentences.Hehastol

eavenow.WhoActionWhatHowWhereWhenHehastoleavenow.ExercisesB:Arrangethewordscorrectly.Shemustbemad.madshemustbeExercisesB:Arran

gethewordscorrectly.Shehadtoseeadoctoryesterday.hadtoseesheadoctoryesterdayExercisesB:Arrangethewordscorrectly.T

heywillhavetofinishtheirhomeworktonight.tonighttheywillhavetofinishtheirhomeworkExercisesC:Transformt

hesentences.Itwillbenecessaryforyoutoseeadoctor.(用must或haveto替代斜体部分)Youmustseeadoctor.Youwillhavetoseeadoctor.ExercisesC:Transfor

mthesentences.Itwasnecessaryforhertogooutlastnight.(用must或haveto替代斜体部分)Shemustgooutlastnight.Shehadtogooutlastnight.ExercisesC:Transfo

rmthesentences.Shesaiditwouldbenecessaryforustostayhere.(用must或haveto替代斜体部分)Shesaidwemuststayhere.Shesaidwewouldhav

etostayhere.Summary如何表达「一定」？1.表示义务：must意为「必须」2.表示推测：must意为「一定」3.haveto可与多种时态连用，但只能表示「必须」。8课后作业听说练习看视频，模仿跟读看英文，自主朗读看中文，故事复述读写练习词块积累阅读理解摘要写作语法填空写作

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