I. Combine the following sentences by using To Infinitive or To infinitive phrase to express purpose.

1. He opened the lion’s cage. He intended to feed the lion.

-> ___________________________________________________

2. He left his rifle outside. He didn’t want to frighten his wife.

-> ___________________________________________________

3. I took off my shoes. I didn’t want to make any noise

-> ___________________________________________________

I. Combine the following sentences by using “to Infinitive / so as to / in order to” to express purpose.

1. Mary wrote a notice on the board. She wanted to inform her classmates about the change in schedule. 

2. Mr. Green has to get up early this morning. He wants to get to the meeting on time. 

3. My elder brother is studying very hard. He wants to pass the final exam. 

4. People use first-aid. They want to ease the victim‟s pain and anxiety. 

5. You should cool the burns immediately. You want to minimize tissue damage. 

6. I have to go to the bank. I want to change some money. 

7. They got up very early. They wanted to get to the top of the hill before sunrise. 

8. We must keep our gloves on. We don‟t want to get cold. 

9. I am buying paint. I want to repaint the gate of my house.

 10. I am saving money. I want to go to Canada to visit my cousin

Rewrite the following sentences using TO INFINITIVE.

1. He opened the window because he wanted to let fresh air in.

2. I took my camera because I wanted to take some photos.

3. We filled the car up because we didn’t want to run out of petrol.

4. I didn’t want to see them, so I didn’t open the door.

5. He did not want to worry her, so he did not tell her what happened.

6. Tom was playing very softly so that he wouldn’t disturb anyone.

7. The boy tiptoed into the room so that he wouldn’t wake every body up

ex1 :match the sentences in the most appropriate way and then write the sentences as one using to-infinitive

1. i phoned to the police station a. he wants to look smart

2. i swept the broken glass off the path b. we wanted to buy some fruit

3. he bought a truck c. i wanted to prevent an accident

4. the staff is working at weekend ' d. he wanted to hear the football results

5. tom turned on the radio e. i wanted to report that my car had been stolen

6. just this once mike is going to wear glasses f. they want to compete the project in time

7. we went to the market g. he did this to carry out his business

8. he rushed into the burning house h. we want to avoid heavy traffic

9. she opened the cage i. she intended to feed the lions

10. we go to work early j. he wanted to save the child

Combine the ideas, using a cause of purpose.

(Dùng in order to, so as to, in order not to, so as not to/ so that/ in other that) để nối câu.

25. Tom takes off his shoes. He doesn't make any noise.

-> ........................................................................................................

26. I hurried. I didn't want to late for meeting her.

-> ........................................................................................................

27. He went to the air port. He wanted to meet his father.

-> ........................................................................................................

Combine the ideas, using a cause of purpose.

(Dùng in order to, so as to, in order not to, so as not to/ so that/ in other that) để nối câu.

10. The man spoke very slowly. He wanted me to understand what he said.

-> The man ...................................................................................................

11. I whispered. I didn't want anybody else to hear our conversation.

-> I whispered ...............................................................................................

12. I'll give you a map. I want you to find the way all right.

-> I'll ...............................................................................................................

Purpose

Infinitive used to express purpose
Combine the two sentences, using to/in order to/so as to
1 I am buying paint. I want to paint my hall door.
2 He tied a knot in. his handkerchief. He hoped that this would remind him to meet the
train.
3 He opened the lions' cage. He intended to feed the lions.
4 He left his rifle outside. He didn't want to frighten his wife.
5 He has a box. He plans to put his savings in it. (Omit it.)
6 We had no cups but he gave us coconut shells. He said we could drink out of them.
(Omit them.)
7 He rushed into the burning house. He wanted to save the child.
8 He read only for short periods each day. He didn't want to strain his eyes.
9 They got up very early. They wanted to get to the top of the hill before sunrise.
10 He rang the bell. He wanted to tell us that dinner was ready.
11 We must keep our gloves on. We don't want to get frost-bitten.
12 The farmer put a scarecrow up in the field. He wanted to frighten I the birds.
13 I took off my shoes. I didn't want to make any noise.
14 Before the carpenter came she covered the floor with polythene sheeting. She wanted to protect
the carpet.
15 The boys are collecting sticks. They intend to put them on the fire. (Omit them.)
16 He was playing very softly. He didn't want to disturb anyone.
17 I am sending him to the USA. I want him to study electronics there.
18 I sent him out of the room. I wanted to discuss his progress with his headmaster.
19 He fixed a metal ladder to the wall below his window. He wanted to be able to escape if there
was a fire.
20 He changed his address constantly. He wanted to elude the police.
21 The police have barricaded the main streets. They want to prevent the demonstrators from
marching through the town.
22 They evacuated everybody from the danger zone. They wanted to reduce the risk.
23 I am learning Greek. I wish to read Homer.
24 He sent his children to his sister's house. He wanted them to watch the television programme.
25 He sent his children to their aunt's house. He wanted to have some peace.
26 The town council has forbidden coal fires. They are trying to keep the air clean.
27 They employed a detective. They wanted to learn what I did in the evenings.
28 I am saving up. I want to buy a helicopter.
29 He coughed. He wanted to warn them that he was coming.
30 You should take your holidays in June. In this way you would avoid the rush.
31 I keep my hens in a field surrounded by wire netting. I want to protect them against the foxes.
32 I am learning skiing at an indoor school. I want to be able to ski when I get to Switzerland.
33 The workmen left red lights near the hole. They wanted to warn motorists.
34 He invented a wife and six children. By this trick he hoped to avoid paying income tax.
35 Some women tint their hair when it goes grey. They want to look younger.
36 He didn't tell her he was going up in the spacecraft. He didn't want to alarm her.