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1.Which of the following needn’t be incl...

1.Which of the following  needn’t be included in this experiment(实验)?

A.String. B.Water. C.Glass. D.Pipe.

2.According to the instruction, which of the following order is correct?   

① run the string from the pitcher to the glass   

② soak the string  in water for a few minutes

③ hold the pitcher slightly higher   

④ tilt the pitcher until water pours out

⑤ fill the pitcher with water   

⑥ tie the string to the handle of the pitcher

A.②⑥③⑤④① B.②⑥⑤③①④ C.①⑥⑤③②④ D.①⑥③⑤②④

3.When water runs along  the string, _________.

A.there is surface tension to make sure water can roll down

B.the string can be winding(弯曲的) or loose

C.the tiny water can’t form a sort of skin

D.the pitcher and the glass must be put at the same height

 

1.D 2.B 3.A 【解析】 本文是一张图示文章,主要通过一个实验说明了表明张力的知识。 1. 细节理解题。根据图片中小标题“You’ll need”可知,需要绳子,水,水罐和杯子。故选D。 2. 细节理解题。根据图片中的步骤可知,第一步,水里浸泡绳子几分钟;第二步,把线绑在水罐的把手上;第三步,水罐里装满水;第四步,把线从水罐绕到杯子上;第五步,倾斜水罐,直到有水倒出来。故选B。 3. 推理判断题。根据图片最下面的文字中的第2大段可知,当水沿着绳子流下来时,表面张力确保水可以流下来。故A正确;根据图片中的第4步可知,线要保证是绷直的;根据图片最下面的文字的第1大段可知,水分子使水表面能形成皮肤,故C错误;根据图片中的第5步和图片可知,水罐和杯子不是同一高度,故D错误。故选A。
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