Earthquake is a natural disaster that humans cannot control. Sometimes earthquakes can be
very dangerous and people need to know more about where earthquakes come from, and
how to protect themselves from them and any other natural disaster. Earthquake refers to
the shaking, rolling or sudden shock of the earth's surface. It is the Earth's natural
means of releasing pressure. More than a million occur in the world each year. Earthquakes
can be felt over large areas although they usually last less than a minute. However,
earthquakes cannot be predicted although scientists are still working on the problem. There
are about 20 plates along the surface of the earth that move continuously and slowly
past each other. When the plates squeeze or stretch, huge rocks form at their edges and the
rocks shift with great force, causing an earthquake. As the plates move, they put forces on
themselves and each other. When the force is large enough, the crust is forced to break.
Shaking and ground breaking are the main effects created by earthquakes, principally
resulting in more or less severe damage to buildings and other structures. The severity of
the effect depends on the complex combination of the earthquake magnitude. The ground
break is a major risk for large engineering structures such as dams, bridges and nuclear
power stations.
I. Choose the most appropriate option in each of the following.
A. The above reading is mainly about ____________.
i. the destruction caused by earthquakes
ii. protecting people from earthquakes
iii. describing a violent earthquake
iv. why and where earthquakes occur
B.Earthquake is considered to be a natural disaster because ____________.
i. it is man-made
ii. man has no control over it
iii. man can control it
iv. it is always expected
C. What does the shaking of the ground result in?
i. damage to buildings and structures
ii. releasing energy into air
iii. breaking and shifting of rocks
iv. all of the above
Answers
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3
Answer:
A- iii
B-ii
C-iv
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