How does anearthquake start?
What makes anearthquake happen? The rock of the earth's crust(地壳)may have a
"fault",akind of break in the surface.The blocks which make up the earth move,and
sometimes this maycause the sides of the fault to move up and down or lengthways(纵向
地)against eachother. When one piece of rock starts to rub on another with great force,a
lot of energy isused. This energy is changed into vibrations(振动)and it is these vibrations
that we feel as anearthquake.The vibrations can travel thousands of kilometers and so an
earthquake in
What to do during anearthquake?
At school
As soon as theearthquake starts,students should get under the desks immediately and
wait until theteacher tells them it is safe to come out.The teacher should,at the same
time, go immediatelyto the teacher's desk, get underneath(在……下面)it and stay there
till the danger isover. Students must not argue with the teacher or question instructions.
As soon as thetremors(震动)stop, allstudents should walk towards the exit and go
straight to theschool playground or any open space such as a square or a park.They must
wait there until theteacher tells them it is safe to go.
At home
If you are at homewhen the earthquake occurs,get immediately under the table in the
living room orkitchen.Choose the biggest and strongest table you can find.You must not
go anywhere near thewindow and don't go out onto the balcony(阳台).Once the tremors
have stopped,you cancome out from under the table but you must leave the building
straight away.Youshould walk down the stairs and should not use the lift一there may be a
power cut as aresult of the earthquake and you could find yourself trapped inside the liftfor
hours.
In the street
If you are in thestreet when the earthquake takes place,do not stand near buildings,
fences or walls一move away as quickly as possible andtry to find a large open space to wait
in.Standing undertrees could also be dangerous.
A.Right
B.Wrong
C.Not mentioned
[单选题]EarthquakeHow does anearthquake start?What makes anearthquake happen? The r
[单选题]EarthquakeHow does anearthquake start?What makes anearthquake happen? The r
[单选题]EarthquakeHow does anearthquake start?What makes anearthquake happen? The r
[单选题]EarthquakeHow does anearthquake start?What makes anearthquake happen? The r
[单选题]EarthquakeHow does anearthquake start?What makes anearthquake happen? The r
[单选题]EarthquakeHow does anearthquake start?What makes anearthquake happen? The r
[单选题]How to Do with Earthquake?Ideally,people wouldlike to know when an earthqua
[单选题]How to Do with Earthquake?Ideally,people wouldlike to know when an earthqua
[单选题]How to Do with Earthquake?Ideally,people wouldlike to know when an earthqua
[单选题]How to Do with Earthquake?Ideally,people wouldlike to know when an earthqua