题目列表(包括答案和解析)
阅读理解
We cannot feel speed. But our senses let us know that we are moving. We see things moving past us and feel that we are being shaken.
We can feel acceleration, an increase in speed but we notice it for only a short time. For example, we feel it during the takeoff (起飞) run of a plane.
We feel the plane's acceleration because our bodies do not gain speed as fast as the plane does. It seems that something is pushing us back against the seat. Actually, our bodies are trying to stay in the same place, while the plane is carrying us forward.
Soon the plane reaches a steady (不变的) speed. Then because there is no longer any change in speed, the feeling of forward motion stops.
1.We can tell that we are moving by ________ .
[ ]
A.feeling ourselves being shaken
B.feeling the speed
C.watching things move past
D.both A and C
2.Acceleration is the name for ________ .
[ ]
3.During the takeoff of a plane, we feel that we are being ________ .
[ ]
4.We feel the plane's acceleration because our bodies gain speed ________ .
[ ]
5.This feeling stops when ________ .
[ ]
A.the plane stops climbing
B.the plane lands
C.there is no longer any change in speed
D.we begin to feel speed
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