... 2. ... 3. ... 4. ... 5. ... 6. ... 7. ... 8. ...V. FILL IN THE...

1. ... 2. ... 3. ... 4. ... 5. ... 6. ... 7. ... 8. ...

V. Fill in the blanks with suitable words from the box. (2 pts)

scientists pollution serious factories exhaust require percentage reduce

Everyone wants to reduce (1) ... . But the pollution problem is as complicated

as it is (2) ... . It is complicated because much pollution is caused by things that

benefit people. For example,(3) ... from automobiles causes large (4) ...

of air pollution. But the automobiles provide transportation to millions of people. (5)

………

.. discharge much of the material that pollutes the air and water, but factories

give employment to a large number of people.

Thus to end or greatly (6)

………

pollution immediately, people would have to stop

using many things that benefit them. Most people do not want to do that, of course. But

pollution can be gradually reduced in several ways. (7)

………

and engineers can

work to find ways to lessen the amount of pollution that such things as automobiles and

factories cause. Government can pass and enforce laws that (8)

………

.. businesses

and individuals to stop, or cut down on certain polluting activities.

VI.Writing ( 2pts ):

A. Rewrite the sentences without changing the meaning. (1 pt)