1、情态动词Grammar FocusGrammar FocusLesson 1如何表达一定？Think about the question.She must be at least thirty-five She must be at least thirty-five years old.years old.Read and say the number.1234In the play,she must appear in a bright In the play,she must appear in a bright red dress and long black stockings.r
2、ed dress and long black stockings.Read and say the number.1234Jennifer will have to take part in a Jennifer will have to take part in a new play soon.new play soon.Read and say the number.1234Last year in another play,she had to wear short Last year in another play,she had to wear short socks and a
3、bright,orange-colored dress.socks and a bright,orange-colored dress.1234 Read and say the number.Draw the conclusions.She must be at least thirty-five years old.She must be at least thirty-five years old.In the play,she must appear in a bright red dress In the play,she must appear in a bright red dr
4、ess and long black stockings.and long black stockings.Jennifer will have to take part in a new play soon.Jennifer will have to take part in a new play soon.Last year in another play,Last year in another play,she had to wear short socks and a bright,orange-colored dress.she had to wear short socks an
5、d a bright,orange-colored dress.Draw the conclusions.表示义务：must 意为必须表示推测：must 意为一定She She mustmust be at least thirty-five years old.be at least thirty-five years old.In the play,she In the play,she mustmust appear in a bright red dress appear in a bright red dress and long black stockings.and long b
6、lack stockings.Jennifer will have to take part in a new play soon.Jennifer will have to take part in a new play soon.Last year in another play,Last year in another play,she had to wear short socks and a bright,orange-colored dress.she had to wear short socks and a bright,orange-colored dress.Draw th
7、e conclusions.have to 可与多种时态连用，但只能表示必须。She She mustmust be at least thirty-five years old.be at least thirty-five years old.In the play,she In the play,she mustmust appear in a bright red dress appear in a bright red dress and long black stockings.and long black stockings.Jennifer will Jennifer will
8、 have to have to take part in a new play soon.take part in a new play soon.Last year in another play,Last year in another play,she she had to had to wear short socks and a bright,orange-colored dress.wear short socks and a bright,orange-colored dress.Exercises A:Split the sentences.SheShemust bemust
9、 beover forty.over forty.She must be over forty.She must be over forty.WhoActionWhatHowWhereWhen Exercises A:Split the sentences.You have to work hard.You have to work hard.WhoActionWhatHowWhereWhenYouYouhave to workhave to workhard.hard.Exercises A:Split the sentences.He has to leave now.He has to
10、leave now.WhoActionWhatHowWhereWhenHeHehas to leavehas to leavenow.now.Exercises B:Arrange the words correctly.She must be mad.She must be mad.madmadsheshemust bemust be Exercises B:Arrange the words correctly.She had to see a doctor yesterday.She had to see a doctor yesterday.had to seehad to seesh
11、eshea doctora doctoryesterdayyesterday Exercises B:Arrange the words correctly.They will have to finish their homework tonight.They will have to finish their homework tonight.tonighttonighttheytheywillwillhave to finishhave to finishtheir homeworktheir homework Exercises C:Transform the sentences.It
12、 will be necessary for you to see a doctor.It will be necessary for you to see a doctor.(用mustmust或have tohave to替代斜体部分)You You mustmust see a doctor.see a doctor.You You willwill have to have to see a doctor.see a doctor.Exercises C:Transform the sentences.It was necessary for her to go out last ni
13、ght.It was necessary for her to go out last night.(用mustmust或have tohave to替代斜体部分)She She mustmust go out last night.go out last night.She She had to had to go out last night.go out last night.Exercises C:Transform the sentences.She said it would be necessary for us to stay here.She said it would be
14、 necessary for us to stay here.(用mustmust或have tohave to替代斜体部分)She said we She said we mustmust stay here.stay here.She said we She said we wouldwould have to have to stay here.stay here.SummarySummary如何表达一定？1.表示义务：must must 意为必须2.表示推测：must must 意为一定3.3.have to have to 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练习Practice makes perfect!
