【題目】

【1】Which of the following needn’t be included in this experiment(實(shí)驗(yàn))?

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.②⑥③⑤④①B.②⑥⑤③①④C.①⑥⑤③②④D.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(彎曲的) 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

【答案】

【1】D

【2】B

【3】A

【解析】

本文是一張圖示文章，主要通過(guò)一個(gè)實(shí)驗(yàn)說(shuō)明了表明張力的知識(shí)。

【1】

細(xì)節(jié)理解題。根據(jù)圖片中小標(biāo)題“You’ll need”可知，需要繩子，水，水罐和杯子。故選D。

【2】

細(xì)節(jié)理解題。根據(jù)圖片中的步驟可知，第一步，水里浸泡繩子幾分鐘；第二步，把線綁在水罐的把手上；第三步，水罐里裝滿水；第四步，把線從水罐繞到杯子上；第五步，傾斜水罐，直到有水倒出來(lái)。故選B。

【3】

推理判斷題。根據(jù)圖片最下面的文字中的第2大段可知，當(dāng)水沿著繩子流下來(lái)時(shí)，表面張力確保水可以流下來(lái)。故A正確；根據(jù)圖片中的第4步可知，線要保證是繃直的；根據(jù)圖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膚，故C錯(cuò)誤；根據(jù)圖片中的第5步和圖片可知，水罐和杯子不是同一高度，故D錯(cuò)誤。故選A。

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