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【題目】The baby is just one day old and has not yet left hospital. She is quiet but alert （警覺）. Twenty centimeters from her face researchers have placed a white card with two black spots on it. She stares at it carefully. A researcher removes the card and replaces it by another, this time with the spots differently spaced. As the cards change from one to the other, her gaze（凝視） starts to lose its focus — until a third, with three black spots, is presented. Her gaze returns: she looks at it for twice as long as she did at the previous card. Can she tell that the number two is different from three, just 24 hours after coming into the world?

Or do newborns simply prefer more to fewer? The same experiment, but with three spots shown before two, shows the same return of interest when the number of spots changes. Perhaps it is just the newness? When slightly older babies were shown cards with pictures of objects (a comb, a key, an orange and so on), changing the number of objects had an effect separate from changing the objects themselves. Could it be the pattern that two things make, as opposed to three? No again. Babies paid more attention to squares moving randomly on a screen when their number changed from two to three, or three to two. The effect even crosses between senses. Babies who were repeatedly shown two spots became more excited when they then heard three drumbeats than when they heard just two; likewise （同樣地） when the researchers started with drumbeats and moved to spots.

【1】The experiment described in Paragraph 1 is related to the baby’s__.

A. sense of hearing B. sense of sight

C. sense of touch D. sense of smell

【2】Babies are sensitive to the change in______.

A. the size of cards B. the colour of pictures

C. the shape of patterns D. the number of objects

【3】Why did the researchers test the babies with drumbeats?

A. To reduce the difficulty of the experiment.

B. To see how babies recognize sounds.

C. To carry their experiment further.

D. To keep the babies’ interest.

【4】Where does this text probably come from?

A. Science fiction. B. Children’s literature.

C. An advertisement. D. A science report.

【答案】

【1】B

【2】D

【3】C

【4】D

【解析】

試題分析: 本文對剛出生一天的嬰兒做實驗，通過變化紙上的黑點及鼓的敲打次數對嬰兒的視覺、聽覺進行的一個實驗。

【1】B 考查細節(jié)理解題。根據文章第一段文中的She stares it carefully. Her gaze starts to lose its focus.可知，本段是對孩子的視覺實驗，故選B項。

【2】D考查細節(jié)理解題。根據第一段中的As the cards change from one to the other，her gaze(凝視)starts to lose its focus—until a third，with three black spots，is presented.Her gaze returns...可知，隨著卡片上黑點數量的變化，嬰兒的注視也發(fā)生變化，表明了嬰兒對于數量的變化比較敏感，故選D項。

【3】C考查細節(jié)理解題。第二段中研究人員先是通過卡片上的黑點來測驗嬰兒對于數量的變化的敏感程度；根據第二段中的The effect even crosses between senses...three drumbeats than when they heard just two；likewise(同樣地)when the researchers started with drumbeats and moved to spots.可知，研究人員又做了擊鼓的實驗，這樣做的目的是更加深入地研究嬰兒對于數量變化的敏感程度，故選C

【4】D 考查推理判斷題。本文提到了experiment和researchers等，可知是一些研究人員做了一個實驗，來檢驗嬰兒們對于數量的變化是不是敏感，所以本文屬于一個科學研究報告，因此選D

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