10 câu hỏi
Fill in each numbered blank with one suitable word or phrase.
More than a billion people all over the world are (1) _____ the threat of desert expansion,…
of
in
on
under
Fill in each numbered blank with one suitable word or phrase.
More than a billion people all over the world are (1) _____ the threat of desert expansion, but few of them are aware that they themselves cause it and are also its (2)___.
victims
enemies
friends
effects
Fill in each numbered blank with one suitable word or phrase.
People cut (3) ____ trees for fuel and farmland.
off
back
down
in
Fill in each numbered blank with one suitable word or phrase.
Their herd eat (4) _____ the grass covering valley floors and hillsides.
up
away
into
out
Fill in each numbered blank with one suitable word or phrase.
The climate and soil quality, therefore, are affected and forests are turned into (5) ____.
blanks
deserts
spaces
bareness
Fill in each numbered blank with one suitable word or phrase.
In some places, many people had to leave their homes when their wells became dry and sand buried their houses and crops. Therefore, government in nearby areas have had local people (6) ____ trees and banned burning firewood for fuel.
planting
plant
to plant
planted
Fill in each numbered blank with one suitable word or phrase.
Many techniques have been (7) _____.
using
use
used
uses
Fill in each numbered blank with one suitable word or phrase.
For example, in Iran, a thin covering of oil was poured on Sandy areas to retain (8) _____ for planting trees, but this method may harm the environment.
fertilizer
soil
earth
water
Fill in each numbered blank with one suitable word or phrase.
Other countries built long canals or pipelines (9)____ water to desert areas.
to carry
take
fetch
bring
Fill in each numbered blank with one suitable word or phrase.
Unless people find more (10) _______ methods, their homes and land will be lost. The last against the desert is continuing.
great
effective
major
useful