TOPIC 16: CONDITIONAL
SENTENCES

A. PRESENTATION

Type 1: Điều kiện có thể xảy ra ở hiện tại, tương lai

Form:
If + S + V(simple present), S +will/ can/ may....+ Vo
= S +will/ can/ may....+ Vo + if + S + V(simple present).

Eg1: If it is sunny, I will go fishing.

Eg3:He will buy a new car if he has enough money.

Type 2: Điều kiện không có thật ở hiện tại, hoặc khó xảy ra trong tương lai.

Form:

If + S + V( simple past), S +would/ could/ might... + Vo
= S +would/ could/ might... + Vo + if + S + V( simple past).

Note: Ta có thể dùng “was/ were” cho các ngôi I/ he/ she/ it ( trong
Mệnh đề If) và chỉ được dùng “were” cho “If I were you” để đưa ra lời
khuyên.
Eg1: If I were you, I would not do this.
Eg2: She would buy a villa if she had much money.

B. PRACTICE

SAVE THE
OCEAN

Bắt đầu!

1.If I could speak Spanish, I _____
next year studying in Mexico.

A. will spend

B. had spend
HẾT
GIỜ

C. would have
spent

D. would
spend

Bắt đầu!

2.If you _______ careful with
electricity, you may get a
shock.
A. don't

B. aren't
HẾT
GIỜ

C. wouldn't

D. won't

Bắt đầu!

3.Will you be angry if I _____
your pocket dictionary?

A. stole

B. have stolen
HẾT
GIỜ

C. steal

D. were to
steal

Bắt đầu!

4.John would be taking a great
risk if he _____ his money in
that business.
A. would
invest

B. had
invested
HẾT
GIỜ

C. invested

D. invests

Bắt đầu!

5. If the wall weren't so high,
he _____ it up to take his ball
down.
A. climbed

B. climb
HẾT
GIỜ

C. is climbing

D. could climb

Bắt đầu!

6. If you press that button, what
_____?
A. would
happen

B. will happen
HẾT
GIỜ

C. would have
happened

D. happen

I. Choose the best answer to complete each sentence.
1.If I could speak Spanish, I ___________ next year studying in Mexico.
A.will spend B. had spent

C. would have spent

D. would
D. would
spendspend

2.If you ___________ careful with electricity, you may get a shock.
A.don't

B. aren't
B. aren't

C. wouldn't

D. won't

3.Will you be angry if I _____ your pocket dictionary?
A. stole

B. have stolen C. steal
C. steal

D. were to steal

I. Choose the best answer to complete each sentence.
4.John would be taking a great risk if he _____ his money in that
business.
A. would invest
B. had invested
D. invests
C. invested
5. If the wall weren't so high, he _____ it up to take his ball down.
A. climbed
B. climb
D. could
could climb
climb
C. is climbing
D.
6. If you press that button, what _____?
A. would happen
C. would have happened

B. will
will happen
happen
B.
D. happen

II. Choose the underlined part in each sentence (A, B, C or D) that needs
correcting.
1.What do you do if you won the first prize of the lottery?
A
B
C
D
KEY: A -> would
2. Would people be able to fly if they have feathers instead of hair?

A

B

C

D

KEY: C => had
3. If a drop of oil is placed in a glass of water, it would float to the top.

A

B

KEY: C => will float

C

D

II. Choose the underlined part in each sentence (A, B, C or D) that needs
correcting.
4. How nice it would be for our parents if we could built the house.

A

B

C

D

KEY: D => could build
5. If your son were enough old, he would be able to take the competition next
week.
A
B
C
D
KEY: B => old enough
6. If we know about your problem, we would help you.

A
KEY: A => knew

B

C

D

II. Choose the underlined part in each sentence (A, B, C or D) that needs
correcting.
7.Unless you don't have a visa, you can't go abroad.
A
B
C
D
KEY: A => If
8.I ran out of money if I bought that house now.
A
B
C
D
KEY: A => would run

III. Choose the sentences that is closest in meaning to the
given one.
1. Do your homework first and I'll let you play the
computer games.
A. I won't allow you to do homework when you play the
computer games.
B. Let's play the computer games without doing your
homework.
C. You are allowed to play the computer games without
doing your homework.
D.
D If you do homework first, I will let you play the
computer games.

III. Choose the sentences that is closest in meaning to the
given one.
2. If he doesn't apologize, I will never invite him here
again.
A. Unless he apologizes, then I will never invite him here
again.
B. Unless he apologizes, or I will never invite him here
again.
C. Unless he doesn't apologize, I will never invite him
here again.
D.
D Unless he apologizes, I will never invite him here
again.

3. I think you should give up smoking.
A. If I am you, I will stop smoking.
B. If I were you, I will stop smoking.
C.
C If I were you, I would stop smoking.
D. If I had been you, I would stop smoking.
4. I have to work tomorrow morning, so I can't meet you.
A. If I don't have to work tomorrow morning, I can meet
you.
B. If I didn't have to work tomorrow morning, I could
B
meet you.
C. I could meet you if I don't have to work tomorrow
morning.
D. I can meet you if I didn't have to work tomorrow
morning.

5. I don't have enough money with me now; otherwise I would
buy that coat.
A. If I didn't have money with me now, I would buy that coat.
B.
B If I had money with me now, I would buy that coat.
C. If I had money with me now, I wouldn't buy that house.
D. If I didn't have money with me now, I wouldn't buy that
house.
6. Because you drink too much coffee, you can't sleep.
A. If you drank less coffee, you would be able to sleep.
A
B. You drink much coffee and you can sleep.
C. You wouldn't sleep well if you hadn't drink any coffee.
D. You can sleep better without coffee.

How to rewrite the conditional sentence
Type 1:

1. V1 and + S+ will + Vo
=> If (1): If + S+ V1 (present simple), S+ will + Vo

2. If... not = Unless
If + S+ don't/ doesn't + Vo, S+ will..+ Vo
=> Unless + S+ V( simple present), S+ will...+ Vo

How to rewrite the conditional sentence
Type 2:

1. You+ should + Vo
=> If (2): If I+ were you, I + would + Vo

2. Câu có 2 vế chia thì hiện tại => Chuyển về điều
kiện loại 2, có phủ định
- Because+ S+ V => If +S.....
- S+ V ( vế 1), so+ S+ V=> If + S+ ... ( vế 1),......

- Revise the grammar point:
+
Conditional sentences
– Type
1,2.

Goodbye!
See you
again!