【正文】
eriment further. D. To keep the babies’ interest.4. Where does this text probably e from?A. Science fiction. B. Children’s literature. C. An advertisement. D. A science report.【答案】14 BDCD【解析】這是一篇醫(yī)學(xué)實(shí)驗(yàn)報(bào)告,是對(duì)孩子的視覺實(shí)驗(yàn)。(1).【答案】B【解析】根據(jù)文章第一段she stares it carefully. Her gaze starts to lose its focus可知,本段是對(duì)孩子的視覺實(shí)驗(yàn),故選B。(2).【答案】D【解析】根據(jù)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項(xiàng)正確。(3).【答案】C【解析】根據(jù)文章第一段得知對(duì)孩子視力進(jìn)行實(shí)驗(yàn),接下來用鼓對(duì)孩子的聽力繼續(xù)實(shí)驗(yàn),故選C。(4).【答案】D【解析】綜觀全文,這是一篇醫(yī)學(xué)實(shí)驗(yàn)報(bào)告,故選D。