问题
完形填空
The Japanese Macaca monkey has been studied in the wild for over 50 years. In 1952, on one small Japanese island, scientists dropped some 36 dirt for the monkeys. The monkeys liked their taste, but they found the dirt 37 . One clever 18-month-old monkey 38 the problem by washing the sweet potatoes in a nearby river, She taught this to her mother. Her 39 also learned this new way and they taught their mothers too. All the younger monkeys 40 learned to wash the dirty sweet potatoes to make them 40 to eat. But many found it very hard to learn this and still ate the 42 sweet optatoes. Then something very 43 . In the autumn of 1958, scientists found that the monkeys on other nearby 44 began washing their sweet potatoes too. Scientists still don’t fully understand how this knowledge was 45 from one island to another.
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答案
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小题:A
小题:C
小题:C
小题:D
小题:B
小题:A
小题:D
小题:C
小题:B
小题:B
小题1:根据下文可知，科学家仍给猴子的是甜土豆。因此答案是A.
小题1:根据题意，应选B。
小题1:solve the problem表示为“解决问题”，符合题意。
小题1:然而很多老猴子发现清洗土豆在食用的办法很难学，于是他们照旧吃脏的甜土豆。根据题意，D.dirty 意为“肮脏的”，与题意相符。
小题1:根据题意，后来发生了一些非常有趣的事情。C.took place 表示“发生，进行，举行”，其他项不合题意。
小题1:根据题意，年轻的猴子们很容易便学会了通过清洗甜土豆使其食用起来更加可口。A.nicer 是nice的比较级，符合题意。
小题1:根据题意，年轻的猴子们很容易便学会了通过清洗甜土豆使其食用起来更加可口。B.easily 意为“容易地”，其它选项均不符合题意。
小题1:根据句意，清洗甜土豆再食用的方法从一个岛传到另一个岛，C.passed 意为“传递”，符合题目意思。
小题1:由下文题意，清洗甜土豆再食用的方法从一个岛传到另一个岛，可知答案应为B.islands.
小题1:细节推理题。根据题意，一只聪明的年轻猴子发明了清洗土豆的办法，然后把此办法教给她妈妈，还教给她的朋友们，她的朋友们又把它告诉给她的妈妈们。因此选D。