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Actividad complementaria 1 Unidad 4 - Lección 7

1. Respuesta variable.

2. a. E-kids - Young people who use technology.

b. Multitasking - To do many things at the same time.

c. Online - Connected to the Internet.

d. Computer - A device with a screen and a keyboard.

e. Texting - Sending messages on the Internet.

f. E-mail - To send a message by cell phone.

3. Respuesta variable.

4.a-b-d-e

5. Respuesta variable

Actividad complementaria 2–Unidad 4 – Lección 7

1. a. will / won't recycle

b. will / won't be

c. will / won't only use

d. will /won't aff ect

3. Respuesta variable.

Actividad Complementaria 1Unidad 4- Lección 8

1. a. find / give

b. wasn't / miss

c. breaks / hit

d. don't ask / doesn't help

e. lose / get

2.C-D-A-C

3. Respuesta variable.

4. Renewable: solar, wind, geothermal.

Non-renewable: coal, nuclear, fossil fuel.

5. Respuesta variable.

Actividad 2 Unidad 4 – Lección 8

1. • If humans continue polluting the ocean, a lot of marine animals will die.

• If we take our reusable bag to the supermarket,we'll avoid using plastic.

• If you recycle, you'll help the environment.

• If you separate the garbage, it will be easy to identify the wastes and recycle in the correct bin.

2. Respuesta variable.

3. a. periods of extreme sea surface temperatures lasting for days to months.

b. it rises temperatures between 2 and 4 degrees Celsius.

SOLUCIONARIO ACTIVIDADES

Para el estudiante

A	Website	B	A computer program that is designed for a particular purpose.
B	Application	D	A mobile telephone with computer features that may enable it to interact with computerized systems, send e-mails, and access the web.
C	Internet	A	A place on the internet with one or more pages of information about a subject.
	Smartphone	C	The large system of connected computers around the world that allows people to share information and communicate with each other.

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