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Lesson 17 Always young青春常驻
My aunt Jennifer is an actress. She must be at least thirty-five years old. In spite of this, she often appears on the stage as a young girl. Jennifer will have to take part in a new play soon. This time, she will be a girl of seventeen. In the play, she must appear in a bright red dress and long black stockings. Last year in another play, she had to wear short socks and a bright, orange-coloured dress. If anyone ever asks her how old she is, she always answers, ‘Darling, it must be terrible to be grown up!’
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Listen and answer
Why doesn't Aunt Jennifer tell anyone how old she is
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Comprehension
单项选择
The story about Jennifer suggests that_____________________________.
(a)she is not too old to appear on stage as a young girl
(b)she is too young to appear on stage as a young girl
(c)she is the right age to appear on stage as a young girl
(d)she is too old to appear on stage as a young girl
2. One of these statements is true. Which one
(a)We know exactly how old Jennifer is. (b)We do not know exactly how old Jennifer is.
(c)Jennifer is thirty-five years old. (d)Jennifer is over thirty-five years old.
回答问题
Is your aunt Jennifer an actress or a nurse
Is she over thirty years old or is she under thirty years old
Does she often appear on the stage as a young girl or not!
Will Jennifer act the part of a girl of seventeen in a new play soon or not
Does she ever tell anyone how old she really is or not
Vocabulary
as
She often appears on the stage as a young girl.(when)她在年轻女孩的时候经常出现在舞台上。
I cannot come as I am busy.(because)由于忙，我不能来。
As I was leaving the house, the postman brought a letter. (at the time when)在我离开房子的时候，邮递员送来一封信。
Do as you are told.(the thing that)叫你怎么做你就怎么做。
He works as an engineer.(in the position of)他担任工程师的工作。
Dress, Suit, Costume
She must appear in a bright red dress.她必须穿一件亮红色的连衣裙出现。
My sister bought a new dress yesterday.我的妹妹昨天买了一条连衣裙
My brother never wears ready-made suits.我的弟弟从来不穿成衣。
All the actors wore fifteenth-century costumes.所有的演员都穿着15世纪的服装。
Grow and Grow up
It must be terrible to be grown up!长大了一定很可怕！
Children grow quickly. The grass has grown very high.孩子们长得很快。草长得很高。
Some people never grow up. (mature in mind)有些人总是成熟不起来。
Exercises练习1: 在下列句子中as是什么意思
1 He works as a pilot.
2 You mustn't shout so loudly as you'll wake up the baby.
3 As we were listening to the radio, someone knocked at the door.
Exercises练习2: 选择正确的词：
1 Trees take a long time to(grow)(grow up).
2 My father bought a new(suit)(costume)recently.
3 She hired a(suit)(costume)for the fancy-dress party.
4 Do you like my sister's new(dress)(costume)
Grammar-- Must
情态动词must常常用来表示不可逃避的义务，这种义务在说话人看来是没有选择余地的。
可以用have to或have got to来代替must。
have to这个短语可以与更多的时态连用。
I must leave now. I have to leave now. I have got to leave now.
He must leave now. He has to leave now. He has got to leave now.
Must you leave now Do you have to leave now Have you got to leave now
We must leave early tomorrow. We have to leave early tomorrow. We have got to leave early tomorrow.
He said he must leave early. We shall have to leave early tomorrow. He said he would have to leave early.
在下列句子中我们不能用must, 也就是说，在过去时的句子中，要用had to来表示“必须”。
She had to go shopping yesterday.
must用来表示推测。
I, personally, think he is a fool. He must be a fool.
I, personally,think he is mad. He must be mad.
I, personally, think she is over forty. She must be over forty.
Exercises练习：改写下列句子，用must或have to来替代斜体印出的部分。
It is necessary for you to work hard. You must(or have to)work hard.
1 It will be necessary for you to see a doctor.
2 Is it necessary for you to make so much noise
3 She said it would be necessary for us to stay here.
4 It is necessary for me to have some help.
5 It was necessary for him to go out last night.
小试牛刀：单项选择
She must be at least thirty-five years old. In my opinion she_______.
(a)has (b)is (c)can (d)must
______is she At least thirty-five years old.
(a)How (b)How big (c)How much (d)How old
She must appear in a bright red dress. She will be dressed_______ red.
(a)with (b)on (c)in (d)by
She must appear in a bright red dress. That's what she___________.
(a)has done (b)have to do (c)has to do (d)had done
She had to wear short socks. It was________ for her to wear them.
(a)certain (b)necessary (c)important (d)impossible
She often appears as a young girl. She __________on the stage as a young girl.
(a)is presented (b)points (c)shows (d)seems
We went to the theatre to see a_______________.
(a)play (b)game (c)toy (d)match
Jennifer will take part in the play. She _________it.
(a)will write (b)won't be in (c)will be in (d)will produce
Men usually wear_____________________.
(a)socks instead of stockings (b)stockings instead of socks
(c)either socks or stockings (d)neither socks nor stockings
She is grown up. She is_____________.
(a)very old (b)an adolescent (c)a teenager (d)an adult

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