STARS WORLD ENGLISH 7 - UNIT 12- LESSON 3

Sources of energy will be used more______for our future.

• effective

• efficient

• effectively

• efficiently

A sky safety system will stop everyone_______crashing in the sky.

• at

• from

• through

• for

____regular light bulbs with low energy light bulbs, which use less energy.

• Turn

• Replace

• Place

• Put

Without good insulation, the______in our houses goes out through the windows, the doors, etc.

• ice

• atmosphere

• amount

• heat

A(n)______station will be built in the North of the country next decade.

• hydropower

• water

• hydroelectricity

• energy

We can______the problem of energy shortage by using solar energy.

• carry out

• get

• recover

• solve

Don't forget to______the lights when leaving a room or going to bed.

• turn

• turn on

• turn off

• turn out

What should we do to____our electric bills?

• fall

• cut down

• drop

• reduce

The use of biogas for cooking______in the countryside.

• will increase

• will be increasing

• will be increased

• will have increased

The digital camera belongs to Nick. That camera is_____.

• him

• he

• his

• one