Everyone wants to reduce pollution. But the pollution problem is as complicated (1)__________it is
serious. It is complicated because much (2)__________is caused by things that benefit people. For
example, exhaust (3)_________automobiles causes a large percentage of all air pollution. (4)_________
the automobiles provide transportation for millions of people. Factories (5)__________much of the
material which pollutes air and water, but factories give employment to a large number of people.
Thus, to (6)__________or greatly reduce pollution immediately, people would have to stop using many
things that benefit them. Most of the people do not want to do that, of course. But pollution can be
(7)__________reduced in several ways. (8)__________and engineers can work to find ways to lessen the
(9)__________of pollution that such things as automobiles and factories cause. Governments can pass and
enforce laws that require businesses and individuals to stop, or cut (10)__________on certain polluting
activities.
1. A. for B. as C. because D. since
2. A. polluter B. pollutant C. polluting D. pollution
3. A. in B. at C. from D. for
4. A. Therefore B. However C. Moreover D. But
5. A. discharge B. offer C. emit D. dissolve
6. A. cause B. end C. increase D. pause
7. A. increasingly B. hopelessly C. gradually D. dangerously
8. A. Scientists B. Doctors C. Lecturers D. Botanists
9. A. number B. figures C. numbers D. amount
10. A. up B. off C. down D. into
Loga
Sinh Học lớp 12
