Unit 11-Conditional type 3-English 10

1- I/come/Quang Binh/ I / visit
Phong Nha Cave


2- The weather/ be / fine / we / go
for a picnic


• A. Conditional Sentences:
Type I. real condition

If clause

Main clause
Will/ shall/ can/ may + V bare inf.

Simple
present
Simple present
If+ s + Vs/es
Imperative form  V bare inf.
 Don’t + V bare inf.


• 2. Usage:

To express a situation is real or
may become true
Ex1: If I have free time, I’ll visit you.
Ex2: If the temperature is 100o C,

the water boils.
Ex3: If you see Tom, ask him to ring
me.


Type II Unreal condition at present:

1. Form:
If Clause

Main Clause

Past subjunctive
If + S+ VC2/ed
S+ would / should/ could/ might
+ V bare inf.
Be  Were


2. Usage:
To talk about present or future situations
that are unreal or cannot happen.
• Ex1: If I were you, I would visit Halong
Bay.
• Ex3: If I had enough money, I would buy a
new car.


III. Unreal condition in the past:
1. Form:

If Clause
Past perfect
If +S +had + V3/ -ed

Main Clause
would
should + have + V3/ -ed.
could
might


• 2. Usage:
To talk about something that might have
happened in the past but it didn’t.
Ex1: If she hadn’t been ill, she would have
gone to the theatre yesterday.
Ex2: If they had come to the party last night.,
they would have seen Catherine, a
famous singer.


• I. Choose the correct form of the verbs:
1. If I miss / I’ll miss the bus, I’ll get a taxi instead.
2. We’ll have to go without John if he doesn’t arrive/ won’t arrive
soon.
3. If I had more money, will/ would you marry?
4. How did you feel/ would you feel if you were in my position?
5. Will you send me a postcard if you visit/ will visit Mexico?
6. They would be upset if I’ve told/ I told them what happened.
7. If you don’t complain/ didn’t complain so much, you might be

more popular.
8. You would have a lot friends if you aren’t/ weren’t so mean.
9. If someone enters/ will enter the building, the alarm goes off.
10. If I don’t revise/ didn’t revise thoroughly, I may fail my test.


• Keys:

1.Miss
3. Would
5. Visit
7. didn’t complain
9. Enters

2.doesn’t arrive
4. Would you feel
6. Told
8. weren’t
10. don’t revise


II. Choose the best answers for the following sentences:
1. If I were you, I ______ that job.
a. would apply for b. will ask for
c. will have changed
d. can take
2. If I _______ a wish, I’d wish for happiness for my family.
a. have
b. am having
c. had

d. was having
3. If I ____ an astronaut traveling in a cabin, I’d not be annoyed by the weightlessness.
a. am
b. be
c. will be
d. were
4. What ____ happen if you come late for the meeting tomorrow?
a. will be
b. would be
c. will
d. would
5. If there were no gravity, water____ never run downhill.
a. would
b. will
c. won’t
d. wouldn’t
6. If you _____ Henry, ask him to come and see me.
a. met
b. will meet
c. meet
d. would meet
7. Unless you _____ quiet, I’ll scream.
a. don’t keep
b. keep
c. kept
d. didn’t keep
8. I’ll be able to speak English well if I _____ hard.
a. studied
b. have studied
c. had studied

d. study
9. If I knew Spanish, I _____ it
a. would explain
b. had explained
c. would have explained d. will explain
10. If I ____ you, I _____ his invitation.
a. am/ will refuse
b. were/ would refuse
c. was/ will refuse
d. had been/ would have refused


1.a
3.d
5.a
7.b
9.a

2.c
4.c
6.c
8.d
10.b


III. Rewrite the following sentences without
changing their meanings:
1.Unless he phones immediately, he won’t get any
information.
If ………………………………………………….

2. Today isn’t Sunday, so the pupils can’t go swimming.
If………………………………………………………………
3. You didn’t ask the teacher, so you didn’t understand the
lesson.
If…………………………………………………………….
4. I don’t know the English, so I can’t tell you about that.
If…………………………………………………………


1.If He doesn’t phone immediately, he won’t
get any information.
2. If today were Sunday, the pupils would go
swimming
3.If you had asked the teacher, you would
have understood the lesson.
4. If I knew the Chinese, I could tell you
about that


• Homework :
Learn the structures
Complete the exercises
Prepare : reading “film & cinema”