[38∼39] 글의 흐름으로 보아, 주어진 문장이 들어가기에 가장 적절한 곳을 고르시오.
39. More recently, agriculture has in many places lost its local character, and has become incorporated into the global economy.
Earlier agricultural systems were integrated with and co-evolved with technologies, beliefs, myths and traditions as part of an integrated social system. (①) Generally, people planted a variety of crops in different areas, in the hope of obtaining a reasonably stable food supply. (②) These systems could only be maintained at low population levels, and were relatively non-destructive (but not always). (③) This has led to increased pressure on agricultural land for exchange commodities and export goods.（④）More land is being diverted from local food production to “cash crops” for export and exchange; fewer types of crops are raised, and each crop is raised in much greater quantities than before. (⑤) Thus, ever more land is converted from forest (and other natural systems) for agriculture for export, rather than using land for subsistence crops. [3점]
*subsistence crop: 자급자족용 작물
40. 다음 글의 내용을 한 문장으로 요약하고자 한다. 빈칸 (A), (B)에 들어갈 말로 가장 적절한 것은?
In their study in 2007 Katherine Kinzler and her colleagues at Harvard showed that our tendency to identify with an in-group to a large degree begins in infancy and may be innate. Kinzler and her team took a bunch of five-month-olds whose families only spoke English and showed the babies two videos. In one video, a woman was speaking English. In the other, a woman was speaking Spanish. Then they were shown a screen with both women side by side, not speaking. In infant psychology research, the standard measure for affinity or interest is attention― babies will apparently stare longer at the things they like more. In Kinzler’s study, the babies stared at the English speakers longer. In other studies, researchers have found that infants are more likely to take a toy offered by someone who speaks the same language as them. Psychologists routinely cite these and other experiments as evidence of our built-in evolutionary preference for “our own kind.”
*affinity: 애착