2020届高考英语精品复习：英语阅读理解

XX届高三英语精品复习资料：
英语阅读理解

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grown-ups know that people and objects are solid. at the movies, we know that if we reach out to touch tom cruise, all we will feel is air. but does a baby have this understanding?
 to see whether babies know objects are solid. t. bower designed a method for projecting an optical illusion(视觉影像)of a hanging ball. his plan was to first give babies a real ball, one they could be expected to show surprised in their faces and movements, all the 16 to 24-week-old babies tested were surprised when they reached for the illusion and found that the ball was not there.
grown-ups also have a sense of object permanence. we know that if we put a box in a room and lock the door, the b