试题与答案

如图所示，将两块相同的橡皮泥做成实心球形和碗形，分别放入相同的甲、乙两杯水中，静

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题型：填空题

题目：

如图所示，将两块相同的橡皮泥做成实心球形和碗形，分别放入相同的甲、乙两杯水中，静止时甲杯中橡皮泥所受的浮力___________乙杯中橡皮泥所受的浮力（选填“大于”、“小于”或“等于”），________杯中水面升高得多。

答案：

小于；乙

考点：浮力及阿基米德原理
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题型：阅读理解

阅读理解。

     Have you ever heard your own voice? "Of course," you say.

     Has anyone else ever heard your voice? Again you say, "Of course."

     But that's not quite true. Nobody else has ever heard your voice-the way you hear it. When you talk,

you set up sound waves (声波). The air outside your head carries the sound waves to your outer ears.

But, of course, the sound of your voice begins inside your head. The bones (骨头) of your head pick up

the sound waves, too. They carry the sound waves straight to your inner (里面的) ears. You get the sound

from the outside and the inside too. Other people get just the sound waves from the outside. That's why

they don't hear your voice the way you do.

1. Sound travels in the form (形式) of _____.[ ]

A. bones

B. air

C. waves

D. voice

2. The sound of your voice begins _____. [ ]

A. inside your head

B. outside your head

C. in your inner ears

D. in your outer ears

3. When you talk, other people hear your voice _____. [ ]

A. through the bones of your head

B. from the outside

C. from the inside

D. all of the above

4. The phrase "pick up" here means _____. [ ]

A. to raise

B. to get

C. to choose

D. to pull

5. The passage is mainly about _____. [ ]

A. waves in the air

B. the way you hear your own voice

C. voice gets around far and wide

D. the different ways you and others hear your voice

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