UNIT
EXERCISES
17
17.1
Complete these sentences with
should
/
ought to + infinitive
(or a passive form) or
should
/
ought to have + past participle
using one of these verbs.
which one is
ought to
NOT
Are there any in which
should
is more
(A & B)
check include keep listen meet plan
refrigerate stay
1
You
reply by now.
2 This medicine in a cool
(from a medicine bottle label)
3 Here's someone you really
4 If you're feeling ill, I at home today, if I were you.
5 To have got a better mark, you your answers more thoroughly.
6 According to the label, the jam after opening.
7 I think you to him. He knew what he was talking about.
8 The results were completely wrong. As a scientist she the experiment more
carefully.
9 The information you send details of courses taken at university.
(from a job application form)
17.2
Correct these sentences where necessary, or put a
(C)
1 Business letters had better be brief and to the point.
2 It's cold outside, so you had better put on a warm coat.
3 I think children had better learn to cook at an early age.
4 You'd better not to go out tonight. It's raining.
5 As you are feeling ill, you'd better not go to work.
6 Some plants had better not be grown in direct sunlight. It
will damage their leaves.
17.3
which sentences can you put
should
or
must
and in which can you only put
Where
both are possible, consider the difference between
should
and
must.
(D)
1 A timetable be set for withdrawing the army.
2 Les isn't home yet. He have been held up at work.
3 T wonder how old Mike is?' 'Well, he went to school with my mother, so he be
well over
4 If you smell gas, you phone the emergency number.
5 You try to visit Nepal - it's a beautiful country.
6 'I only live a couple of minutes from the town centre.' 'It be handy having
shops nearby.'
17.4
Here are some things that people often say in Britain. (E)
1 Walking under a ladder
is supposed to
be /
2
It's
supposed to
be lucky if a black cat walks
С
i n front o f you.
in front of you.
3 The call of the cuckoo (= a bird)
is supposed to
/
be the first sign of spring.
4 Drinking hot milk before you go to bed // //
.
.
.
.
supposed
to
help you sleep.
What other similar things do people often say in your country? Use
supposed to
in your answers.
35
c e r t a i n t y
We use
will
(or
'11)
when we talk about WILLINGNESS to do something (e.g. in offers, invitations,
requests, and orders) and
will not
(or
won't)
when we talk about UNWILLINGNESS to do
something (e.g. reluctance, refusal):
•
I'll
give you another opportunity to get the correct answer.
• Mum! Sue
won't
give me back my pencil case.
Notice that we can also talk about the refusal of a thing to work in the way it should:
• The top
won't
come off. • The key
won't
fit the lock.
To talk about
general
or
repeated
willingness in the past we can sometimes use
would,
but we
can't use
would
in this way to talk about a
particular
occasion in the past. Compare:
• Whenever I had to go to town, Ron
would
give me a lift. (= repeated)
• I was late, so Ron gave me a lift to
(not
...Ron would give me...) (= particular occasion)
However, we can use
would not
either
when we talk about unwillingness in general
or
about a
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