阅读理解Theybabyisjustonedayoldandhasnotyetlefthospital．Sheisquietbutalert(警觉)．Twentycentimetersfromherfaceresearchershaveplacedawhitecardwithtwoblackspotson

Question

阅读理解

　　They baby is just one day old and has not yet left hospital．She is quiet but alert(警觉)．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(凝视)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(同样地)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．

Answer 1

答案：1．B;2．D;3．C;4．D;
解析：
(1) 根据文章第一段she stares it carefully．Her gaze starts to lose its focus可知，本段是对孩子的视觉实验，故选B。 (2) 根据文章第二段Babies pay more attention to squares moving randomly on a screen when their number changed from two to three three to two可知D项正确。 (3) 根据文章第一段得知对孩子视力进行实验，接下来用鼓对孩子的听力继续实验，故选C。 (4) 综观全文，这是一篇医学实验报告，故选D。