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100 HELPFUL TIPS
ACTIVITY - 7
\ A) Read the text below and complete the sentences.

We need energy for heating, cooking, manufacturing and for transportation.
Most of the energy we use today comes from coal, oil and gas. But those energy sources
will not last forever. We don’t use them
wisely. We need to look for other ways
of supplying.
EDİTÖR YAYINEVİ
Solar power is a way of
using the sun’s energy as heat or to
make electricity. We can also use wind
power by building modern windmills
that spin in the wind. Also, we can make use of water power. We can create electricity
from sea water flowing in and out with tides.

1. If we don’t use energy sources wisely, .................
2. Today we create energy from .................
3. Alternative energy sources are .................
4. We can use sun’s energy to .................
5. We can produce electricity from sea water .................

\ B) Circle the best title for the text.

a. Coal Science and Technology c. Electrical Power Systems
b. Alternative Energy d. Natural Energy Sources

ACTIVITY - 8
\ Complete the sentences with the Type 0 and Type - 1.
1. If she ............ (pass) her exam, her mother ............ (buy) her a new computer.
2. If you ............ (ask) your friend, he ............ (tell) everything.
3. If Jack ............ (do) his homework, his teacher ............ (get) angry with him.
4. If you ............ (get) ready, you ............ (be) late.
5. If the laptop ............ (work), ............ (call) the service.
6. If it ............ (snow), my children ............ (build) a snowman
7. If you ............ (listen) loud music, you ............ (always, have) a headache.
8. If you ............ (mix) blue and yellow, you ............ (get) green.
9. If we ............ (want / be) late for the film, we ............ (must / leave) at once.
10. If you ............ (need) a hand, you ............ (call) me for help.