1．They 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 24hours 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．
60．The experiment described in Paragraph 1is related to the baby'sB．
A．sense of hearingB．sense of sightC．sense of touchD．sense of smell
61．Babies are sensitive to the change inD．
A．the size of cardsB．the colour of pictures
C．the shape of patternsD．the number of objects
62．Why did the researchers test the babies with drumbeats？C．
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．
63．Where does this text probably come from？D．
A．Science fiction．B．Children's literature．C．An advertisement．D．A science report．
分析 本文是一篇說明文．文章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．主要介紹了研究人員通過一些卡片黑點的數量來檢驗嬰兒對于數量變化的敏感程度，發現當數量相對多的時候，比較容易引起嬰兒的注意，使他們變得更加興奮．
解答 60．B 細節理解題．根據第一段中的"She stares at it carefully．""嬰兒認真地盯著看"可知，研究人員研究的是孩子的視覺．
61．D 細節理解題．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，嬰兒的注視也發生變化，表明了嬰兒對于數量的變化比較敏感．
62．C 細節理解題．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．
63．D 文章出處題．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，故選D．
點評 解答細節理解題時，一個常用的方法就是運用定位法，即根據題干和選項中的關鍵詞從原文中找到相關的句子，與選項進行比較從而確定答案；推理判斷題既要求學生透過文章表面文字信息推測文章隱含意思，又要求學生對作者的態度、意圖及文章細節的發展作正確的推理判斷，力求從作者的角度去考慮，不要固守自己的看法或觀點．
