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Module 1 British and American English 阅读理解提速练——练速度 (限时：20分钟) A (2016·哈尔滨市第三中学一模)Babies don't learn to talk just from hearing sounds. They are lipreaders too. It happens during the stage when a baby's babbling (咿呀声) gradually changes from unclear voices into that first “mama” or “dada”. The baby in order to do like you has to figure out how to shape their lips to make that particular sound they are hearing, according to developmental psychologist David Lewkowicz of Florida Atlantic University, who led the study. Apparently it doesn't take them too long to absorb the movements that match basic sounds. By their first birthdays, babies start changing back to look you in the eye again. It offers more evidence that quality facetime with babies is very important for speech development more than, say, turning on the latest baby DVD. But Lewkowicz went a step further. He and his student Amy HansenTift tested nearly 180 babies, groups of them at ages 4,6,8,10 and 12 months. How? They showed videos of a woman speaking in English or Spanish to babies of English speakers. They found that when the speaker used English, the 4montholds gazed mostly into her eyes. The 6montholds spent equal amounts of time looking at the eyes and the mouth. The 8and 10montholds studied mostly the mouth. At 12 months, attention started changing back toward the speaker's eyes. | 
