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.
小題1:
A．sweet potatoesB．green plantsC．hard stonesD．fresh nuts
小題2:
A．beautifulB．terribleC．difficultD．interesting
小題3:
A．findB．reachC．solveD．understand
小題4:
A．childrenB．brothersC．sistersD．friends
小題5:
A．quietlyB．esilyC．a(chǎn)ngrilyD．a(chǎn)wfully
小題6:
A．nicerB．smallerC．lighterD．drier
小題7:
A．smallB．largeC．newD．dirty
小題8:
A．took onB．took offC．took placeD．took away
小題9:
A．treesB．islandsC．beachesD．rivers
小題10:
A．lostB．droppedC．passedD．left
【】
小題:A
小題:C
小題:C
小題:D
小題:B
小題:A
小題:D
小題:C
小題:B
小題:B

小題1:根據(jù)下文可知，科學(xué)家仍給猴子的是甜土豆。因此答案是A.
小題1:根據(jù)題意，應(yīng)選B。
小題1:solve the problem表示為“解決問題”，符合題意。
小題1:然而很多老猴子發(fā)現(xiàn)清洗土豆在食用的辦法很難學(xué)，于是他們照舊吃臟的甜土豆。根據(jù)題意，D.dirty 意為“骯臟的”，與題意相符。
小題1:根據(jù)題意，后來發(fā)生了一些非常有趣的事情。C.took place 表示“發(fā)生，進(jìn)行，舉行”，其他項(xiàng)不合題意。
小題1:根據(jù)題意，年輕的猴子們很容易便學(xué)會了通過清洗甜土豆使其食用起來更加可口。A.nicer 是nice的比較級，符合題意。
小題1:根據(jù)題意，年輕的猴子們很容易便學(xué)會了通過清洗甜土豆使其食用起來更加可口。B.easily 意為“容易地”，其它選項(xiàng)均不符合題意。
小題1:根據(jù)句意，清洗甜土豆再食用的方法從一個島傳到另一個島，C.passed 意為“傳遞”，符合題目意思。
小題1:由下文題意，清洗甜土豆再食用的方法從一個島傳到另一個島，可知答案應(yīng)為B.islands.
小題1:細(xì)節(jié)推理題。根據(jù)題意，一只聰明的年輕猴子發(fā)明了清洗土豆的辦法，然后把此辦法教給她媽媽，還教給她的朋友們，她的朋友們又把它告訴給她的媽媽們。因此選D。
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