Activities on page 28

Es 1 pag 28

The most useful invention are:

- washine machine

- refrigerator

- television

- antibiotics

- communication satellite

- mobile phone

Es 2 pag 28

I could live without radar, jet engine, nuclear power and credit card.

I couldn’t live without washing machine, refrigerator, television, antibiotics, communication satellite and mobile phone.

Es 3 pag 28

1. 2005

2. 1971

3. 2001

4. 1984

5. 1991

6. 1990

7. 1995

8. 2006

Activities on page 29

Es 4 pag 29

1. T

2. T

3. F

4. T

5. F
6. T
7. T

8. T

Es 5 pag 29

1. broadband

2. dekstop computer

3. internet server

4. keyboard

5. laptop

6. password

7. search engine

8. socail networking

9 .text massage

10. username

11. website

Es 6 pag 29

1. text

2. user

3. dekstop

4. engine

5. social

6. engine

Es 7 pag 29

1. click

2. download

3. follow

4. go

5. open

6. visit

Es 8 pag 29

1. go

2. opened

3. on

4. follow

5. visit

6. downloaded

Es 9 pag 29

1. X

3. X

4. X

6. X

Es 10 pag 29

1. click on

2. hang up

3. log on

4. scroll up

5. scroll down

6. switch on

Es 11 pag 29

For find a friend on Facebook you have to enter in the website. You must have already log on Facebook. If you want to find a friend you have to write in the search engine the name of the profile of the person and send the request. You can also see the requestes sented to you and you can accept it or not.

Activities on page 32 - 33

Es 1 pag 32

1. D

2. E
3. C

4. A
5. B

Es 2 pag 32

1. Apollo 13 was flying to the moon

2. They didn’t get there because of a problem of one of the fuel tanks.

Es 3 pag 32

1. B
2. C

3. B

4. C

5. A

6. A
Es 4 pag 32

1. hatch

2. thought of, produced

3. came up with

4. on duty

5. breath a sigh of relief

6. running out

7. cheer

8. carrying out
Es 5 pag 32

2. running uot

3. carried out

4. hatch

5. on duty

6. breath a sigh of relief

7. cheer

8. came up with

Es 6 pag 32

1. I agree with the second one

Es 7 pag 32

1. find a solution

2. fix a problem

3. follow events

4. get home

5. go carzy

6. raise your hand