Question

3．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．
32．The experiment described in Paragraph 1 is related to the baby'sA．
A．sense of sight                         
B．sense of hearing          
C．sense of touch                         
D．sense of smell
33．Babies are sensitive to the change inD．
A．the size of cards                                     
B．the color of pictures
C．the shape of patterns                              
D．the number of objects
34．Why did the researchers test the babies with drumbeats？A
A．To carry their experiment further．
B．To reduce the difficulty of the experiment．
C．To see how babies recognize sounds．
D．To keep the babies'interest．
35．Where does this text probably come from？C
A．Science fiction．
B．Children's literature．
C．A science report．
D．An advertisement．

Answer 1

分析 本篇是一篇說明文．文章主要講述了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(shù)對嬰兒的視覺、聽覺進行的一個實驗．對初生嬰兒做實驗，通過對卡片上黑點的變化，看新生兒的反應(yīng)，并根據(jù)實驗所得嬰兒的反應(yīng)情況進行分析．

解答 32．答案：A．細節(jié)理解題．根據(jù)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A．
33．答案：D．細節(jié)理解題．根據(jù)文章第二段中的Babies pay more attention to squares moving randomly on a screen when their number changed from two to three，or three to two．可知，D正確．故選D．
34．答案：A．細節(jié)理解題．根據(jù)文章內(nèi)容"Babies who were repeatedly shown two spots became more excited when they then heard three drumbeats than when they heard just two"可知，用鼓來對孩子的聽力進行試驗．故選A．
35．答案：C．推理判斷題．縱觀文章，文章主要講述了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(shù)對嬰兒的視覺、聽覺進行的一個實驗．這是一篇醫(yī)學(xué)試驗報告．故選C．

點評 本文是一篇說明文，題目涉及細節(jié)理解題及推理判斷題，做題時應(yīng)結(jié)合文章上下文內(nèi)容，仔細閱讀原文，并根據(jù)所給選項的含義進行分析，從而得出正確答案．切記胡亂猜測，一定要做到有理有據(jù)．