OXFORD PRACTICE GRAMMAR 67 ADJECTIVE + TO-INFINITIVE B It is easy to drive the car An adjective + to-infinitive often comes in this structure with it + be.. It's quite safe to use the
Trang 1OXFORD PRACTICE GRAMMAR
67 ADJECTIVE + TO-INFINITIVE
B It is easy to drive the car
An adjective + to-infinitive often comes in this structure with it + be
It's important to look in the mirror It's lovely to see you It's quite
safe to use the ladder It was silly to make such a fuss
The subject can also be a person
I'm delighted to see you We're ready to start now
C The car is easy to drive
Compare these two sentences They both mean the same thing
It is easy to drive the car The car is easy to drive We
do not use it in the second sentence
NOT The-car-is-easy-to-drive-it and NOT The-car it is-easy-to-drive
Here are some more examples
Trang 2Your writing is difficult to read A small car would be cheap to run The parade was fascinating to watch The ladder is quite safe to use
We can use this structure with adjectives meaning 'good' or bad', e.g awful, bad, exciting, fascinating,
good, marvellous, nice, terrible, wonderful We can also use it with these adjectives: cheap, convenient,
dangerous, difficult, easy, expensive, impossible, safe, simple
D Certain, sure and likely
We can use a to-infinitive after certain, sure, likely and unlikely
United are certain/sure to win (= They will certainly win.)
Sarah is likely to be at work (= She is probably at work.)
E For and of
After some adjectives we can use for + object + to-infinitive (see Unit 68)
It's important for drivers to take care It isn't safe for children to play on
ladders
After an adjective describing how someone behaves (e.g polite, silly), we
can use of It
was polite of Emma to write and thank us (Emma was polite.) It was silly
of me to
forget the tickets (I was silly.)
Trang 368 For with the to-infinitive 117 Too and enough
We can use a to-infinitive (e.g to
be) after an adjective (e.g great)
67 Exercises
1 It is easy to drive the car (B)
Sarah's job is to write advertisements She is writing one for Compex
computers
Write sentences with it and an adjective followed by a to-infinitive ► Buy a Compex computer It isn't expensive It isn't expensive to buy a Compex
computer
1 Using the computer is very simple
It's very
2 Understanding the handbook isn't difficult
It isn't
3 You can run any kind of software It's easy
4 Exploring the world of Compex is absolutely fascinating
5 Try the ultimate computer experience Are you ready?
2 The car is easy to drive (C)
Sarah isn't happy with her ideas for the Compex advertisement
She is rewriting the first four sentences like this ► A Compex
Trang 4computer isn't expensive to buy
1 The computer
2 The handbook
3
4
………
…
3 Certain, sure and likely (D)
Complete the conversation Make sentences from the notes in brackets Nick: Are you going to Mike and Harriet's party?
Tom: Yes, I am (►) It's sure to be a good party (it / sure / be / a good
party)
Nick: Will there be a lot of people there?
Tom: Yes, (1)
……… (it / likely / be / pretty crowded)
Trang 5Nick: Has Rita been invited, do you know?
Tom: Oh, (2)
(she / certain / be / there)
Nick: I don't know that part of town Is the house easy to find?
Tom: No, it isn't Take a map or (3)
……… (you / unlikely / find / it)
4 For and of (E)
Vicky and Rachel are talking about two students they know called Gary and Steve
Complete the conversation Put in for or of
Vickv: I can't believe that Gary and Steve had a fight in a pub Don't you think that was very foolish
(►)of them?
Rachel: Yes, it was especially stupid (1) them to quarrel about which football team is the best
There must be something more interesting (2) them to talk about Vicky: I blame Steve It wasn't very sensible (3) him to knock Gary's drink over
Trang 6Rachel: It was brave (4) Daniel to try to stop the fight It was awful (5) him to get hit
on the head with a chair