Period 21: Theme VII: Lesson 3: CONDITIONAL SENTENCES
Type 1: Điều kiện có thể xảy ra ở hiện tại, tương lai
Form:
If + S + Simple present, S + simple future/ imperative

Eg1: If I have time tomorrow, I will visit you.

Eg2: If it is sunny, I will go fishing.


Eg3: If he has enough money, he will buy a new car.
Type 2: Điều kiện không có thật ở hiện tại, hoặc khó xảy ra trong tương lai.
Form:
If + S + Simple past, S +would + Vbare

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: If she had much money , she would buy a villa.



Eg3: I would send her an invitation if I found her address.






Exercise 1:
will stay
doesn’t feel
ask
will help
see
don’t tell
Will your dad be
finds out
may miss
don’t hurry
finish
can meet
are
won’t go
don’t make
will get
Call
need
Exercise 2:
wouldn’t lie
didn’t have
would stay
would get
had
wasn’t/ weren’t
would buy
didn’t like
wouldn’t call
would you say
asked
were
wouldn’t spend
Exercise 3:Complete the sentences with the correct form of the verb in bracket:

1.If I (be)……….you, I (not do)…… that.
2. I don’t have a computer. If I …….(have) a computer, I …………(finish) my work more quickly.
3. It may rain tomorrow. If it ……..(rain) tomorrow, I ………(stay) at home.
4. If he likes the house,….. he…… (buy) it?
5. What …you …..(do) if you ……..(have) wings?
6. He may be late. If he ……….(be) late, we……. …..(go) without him.
7. How………..our life….. (become) if we……. (not use) electricity?
8. It is going to rain soon. If you …..(not take) your umbrella, you ……(get) wet.
were/ wouldn’t do
had/ would finish
rains/ will stay
will he buy
Would you do/ have
is/ will go
would our life become/ didn’t use
don’t take/ will get
Exercise 4: Combine or rewrite the following sentences using conditional sentences.

1. In the snowy weather, we don’t go to school.
If it snows, we won’t go to school.
2. Make me some coffee, and I’ll give you some sweets
If you make me some coffee, I will give you some sweets.
3. Getting up early makes me feel hungry.   
If I get up early, I will feel hungry.
4. My brother will have enough money. He will buy a bicycle.
   If my brother has enough money, he will buy a bicycle.
5. He will pay me tonight; I will have enough money to buy a car.
If he pays me tonight, I will have enough money to buy a car.
6. He may visit us next Monday. We will invite him to go for a drive in the countryside.
If he visits us next Monday, he will invite him to go for a drive in the countryside.
7. Go right now or you’ll be late for the train.
If you don’t go right now, you will be late for the train.

8. I have to work tomorrow evening, so I can’t meet you.
If I didn’t have to work tomorrow evening, I could meet you.
9. Don’t be impatient; otherwise, you will make mistakes.
If you are impatient, you will make mistakes.
10. John is not a superman, so he can’t lift up the bridge.
If John was/ were a superman, he could lift up the bridge.
11. She is very lazy, so she doesn’t understand any lessons.
If she wasn’t/ weren’t lazy, she would understand lessons.
12. There are industrial factories inside the city, that’s why pollution can’t be reduced.
If there weren’t industrial factories inside the city, pollution could be reduced.
13. You’ll ask the teacher. He’ll explain the lesson to you.
If you ask the teacher, he will explain the lesson to you.
14. It is raining heavily, so they are not having lunch in the garden now.
If it wasn’t / weren’t raining heavily, they would be having lunch in the garden now.
Exercise 5: - Choose the most suitable tense
 1- I can’t understand what he sees in her! If anyone treats / will treat / treated me like that, I am / will be / would be extremely angry.
2- If you help / helped me with this exercise, I will do / would do the same for you one day.
3- According to the timetable, if the train leaves / left on time, we will / would arrive at 5.30.
4- If it is / will be fine tomorrow, we go / will go to the coast.
5- If we find / found a taxi, we will get / would get there before the play starts.
6- It’s quite simple really. If you take / will take / took these tablets every day, then you lose / will lose / lost / would lose weight.
7- I don’t like this flat. I think Iwill be / I am / I’d be happier if I lived / live / will live / would live in a house in the country.
8- I can’t play football, but I’m sure that if I will do / do / did, I play / will play / would play a lot better than anyone in this awful team.
9- If I phone / will phone you tonight, are you / will you be / would you be in?
treated
would be
helped
will do
leaves
will
is
will go
find
will get
take
will lose
I’d be
lived
did
would play
phone
will you be
Homework
Redo the exercises.
Remember the form and use of conditional sentences type 1 and type 2.