Đề thi đọc hiểu anh 12 số 1

Đề thi đọc hiểu anh 12 số 1
Desertification
The Sahara desert is growing by 10 km each year. The whole
earth gets 600 km2 of desert area more every year. This process is
called “Desertification”. This term started being (1) … in the 1950s.
The idea of desertification was first known in the 1930s. Much
of the Great Plains grew very dry (2) … a result of drought and very
poor farming techniques. It was called the “Dust Bowl”. Millions
were forced to leave their farms and their ways of life. Since then,
(3) … have been great improvements in farming practices in the
Great Plains. These have prevented the “Dust Bowl” disaster (4) …
again.
Grazing is one worry. Cows do two things to the soil. First,
they eat grasses and plants that hold the soil in place. Second, their
hooves break down the top layer of soil. The result is that the good
soil can be blown away by the wind. The dirt (5) … behind is not
good for growing.
1. A. use B. used C. to use D. using
2. A. as B. for C. by D. with
3. A. it B. they C. there D. those
4. A. to occur B. to occurring C. of occurring D.
from occurring
5. A. leaves B. to leave C. left D.
leaving
KEY: 1. B 2. A 3. C 4. D 5. C