情态动词[上学期]
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课件31张PPT。Go overLead in SummaryPracticeWritingHomeworkDialogueFill in blanksI must / mustn’tII must / have to or has toIII must / have to or has to
(negative form)IV must have doneV Integrating Exercise
(Making Sentences)Presentation GO OVER
Use the words or phrases in the box . Use each word or phrase only once.can, had better, should / ought to, must, have toYou ___ listen to
the teacher carefully!You _______________ take
an umbrella in case it rains.had betterYou ___ listen to the
teacher carefully!
“You ____________________
listen to the teacher carefully!”should / ought to________ you tell me where
Smith’s supermarket is, please?CanHe misses his bus. He
____________ wait for another.has to B: I _____ go to see a doctor.
G: Why?
B: I am not feeling well.
G: Really? _____ I go with you?
B: No, you _______.
G: OK, you ________ forget
your medical care.
B: Of course, I remember.
G: Oh, it is wet outside. It
_____ _____ ______ yesterday.
So it _____ ___ slippery outside.
Do be careful!
B: Don’t worry. I’m not a little boy.
G: OK, bye!mustMustneedn’tmustn’tmust have rainedmust beSUMMARYYou use must when you think it is necessary.You use mustn’t when you think it is necessary
not to do it, it is the wrong thing to do.You use must have done to make a logical
deduction about the past.You use must do to make a logical deduction
about the present.You use have to when someone else thinks it is
necessary, you are obliged to do it.In informal English, you can use have got to
instead of have to.
Look at the signs below. They all
give information about what you must
or mustn’t do. Complete the sentences
using ‘must’ or ‘mustn’t’:
e.g. This sign means
you mustn’t
drive over 30mph.PRACTICE IThis sign means you ___________________.mustn’t parkmustn’t take photographsmust be quietmustn’t smokeThis sign means you ___________________.mustn’t take dogs heremust carry childrenmust stop heremust keep off the grass PRACTICE II
Complete the speech bubbles in the pictures with ‘must’
or ‘has to / have to’have to has to have to must PRACTICE III
Look at the following table on the
greeting manners. Decide which are
necessary and which are not. Make
sentences using must, have to, or
their negative forms.Greeting Mannersget off the bike when you greet
someoneget out of the car when you greet
someonewear clean clothessmiletake off your hatsalutekiss on the
cheekhuglook into the
eyesshake handsExample:When you greet a friend who you know very
well, you don’t have to shake hands.If you want to make friends with someone, you
must smile. PRACTICE IV
It’s 8:20 in the morning. Frank is waiting for the bus to work.
Look at the picture of Frank’s flat. Say something about what
he must have done a few minutes ago.He must have __________.read a bookHe must have ___________
______________________.had a bath / cleaned his socks and shirtHe must have ______________
_________________________.cooked for breakfast / had breakfast /read a newspaperPRACTICE V
Integrating Exercise___________They ________ (go) out.It’s a fantastic film. You _____
see it. _____must________You ___________ touch the
pictures.mustn’t______This is my medicine. I _________
take it four times a day.have to They _________ (go) out.George is outside his friends’ house. He has rung the
door bell three times but nobody has answered.
They _______________(go) out.must have goneWRITING Your friends are planning to
drive across North America and
camp along the way. What advice
can you give them? Write a short
passage (at least 6 tips included) using
the expressions in the box and
some of the cues below. You have to…
You must…
You mustn’t…
You don’t have to…
You’d better (not)…
You should (not)…
You ought (not) to…take your driver’s license remember to bring a jacket
buy good quality camping equipment take a lot of cash
forget a first-aid kit take a credit card
take cooking equipment take maps and travel guides
remember to bring insect spray pack a lot of luggage
forget your passport or identificationHOMEWORK
Workbook
Grammar
1~3 (P74)
(negative form)IV must have doneV Integrating Exercise
(Making Sentences)Presentation GO OVER
Use the words or phrases in the box . Use each word or phrase only once.can, had better, should / ought to, must, have toYou ___ listen to
the teacher carefully!You _______________ take
an umbrella in case it rains.had betterYou ___ listen to the
teacher carefully!
“You ____________________
listen to the teacher carefully!”should / ought to________ you tell me where
Smith’s supermarket is, please?CanHe misses his bus. He
____________ wait for another.has to B: I _____ go to see a doctor.
G: Why?
B: I am not feeling well.
G: Really? _____ I go with you?
B: No, you _______.
G: OK, you ________ forget
your medical care.
B: Of course, I remember.
G: Oh, it is wet outside. It
_____ _____ ______ yesterday.
So it _____ ___ slippery outside.
Do be careful!
B: Don’t worry. I’m not a little boy.
G: OK, bye!mustMustneedn’tmustn’tmust have rainedmust beSUMMARYYou use must when you think it is necessary.You use mustn’t when you think it is necessary
not to do it, it is the wrong thing to do.You use must have done to make a logical
deduction about the past.You use must do to make a logical deduction
about the present.You use have to when someone else thinks it is
necessary, you are obliged to do it.In informal English, you can use have got to
instead of have to.
Look at the signs below. They all
give information about what you must
or mustn’t do. Complete the sentences
using ‘must’ or ‘mustn’t’:
e.g. This sign means
you mustn’t
drive over 30mph.PRACTICE IThis sign means you ___________________.mustn’t parkmustn’t take photographsmust be quietmustn’t smokeThis sign means you ___________________.mustn’t take dogs heremust carry childrenmust stop heremust keep off the grass PRACTICE II
Complete the speech bubbles in the pictures with ‘must’
or ‘has to / have to’have to has to have to must PRACTICE III
Look at the following table on the
greeting manners. Decide which are
necessary and which are not. Make
sentences using must, have to, or
their negative forms.Greeting Mannersget off the bike when you greet
someoneget out of the car when you greet
someonewear clean clothessmiletake off your hatsalutekiss on the
cheekhuglook into the
eyesshake handsExample:When you greet a friend who you know very
well, you don’t have to shake hands.If you want to make friends with someone, you
must smile. PRACTICE IV
It’s 8:20 in the morning. Frank is waiting for the bus to work.
Look at the picture of Frank’s flat. Say something about what
he must have done a few minutes ago.He must have __________.read a bookHe must have ___________
______________________.had a bath / cleaned his socks and shirtHe must have ______________
_________________________.cooked for breakfast / had breakfast /read a newspaperPRACTICE V
Integrating Exercise___________They ________ (go) out.It’s a fantastic film. You _____
see it. _____must________You ___________ touch the
pictures.mustn’t______This is my medicine. I _________
take it four times a day.have to They _________ (go) out.George is outside his friends’ house. He has rung the
door bell three times but nobody has answered.
They _______________(go) out.must have goneWRITING Your friends are planning to
drive across North America and
camp along the way. What advice
can you give them? Write a short
passage (at least 6 tips included) using
the expressions in the box and
some of the cues below. You have to…
You must…
You mustn’t…
You don’t have to…
You’d better (not)…
You should (not)…
You ought (not) to…take your driver’s license remember to bring a jacket
buy good quality camping equipment take a lot of cash
forget a first-aid kit take a credit card
take cooking equipment take maps and travel guides
remember to bring insect spray pack a lot of luggage
forget your passport or identificationHOMEWORK
Workbook
Grammar
1~3 (P74)