Đề thi đọc hiểu anh 12 số 1Desertification The Sahara desert is growing by 10 km each year.. The whole earth gets 600 km2 of desert area more every year.. Much of the Great Plains grew v
Trang 1Đề 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
4 A to occur B to occurring C of occurring D from occurring
leaving