高考一轮《外研版必修5Module1》跟踪检测试卷含答案 - 副本.doc
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必修五 Module 1
阅读理解提速练——练速度
(限时:20分钟)
A
(2021·哈尔滨市第三中学一模)Babies don't learn to talk just from hearing sounds. They are lip-readers 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 face-time with babies is very i