Section 4

　　场景：The Development of Math

　　题型：填空

　　参考答案：

　　31. babies think math is a ‘confusion’

　　32. Modern researchers are interested in studying eyes

　　33. They were not interested when the arrangement changed

　　34. Older babies were familiar with pictures of different things

　　35. New babies tell number in darks

　　36. people started farming

　　37. Research: language is not essential

　　38. birds matching numbers, which involve counting

　　39. whether or not to fight for lives

　　40. Europeans used fingers and toes for counting

　　最新热文推荐：

　　2019，考试分手！——留学考试备考规划

　　2018-2019最新世界大学排名一览

　　去美国前，你需要做好这五件事

　　香港留学一年要花多少钱？算算这笔留学账

　　用高考成绩申请伯明翰大学还需要考A-Level吗

（编辑：JIE）