Many people have the wrong idea about pigs. Pigs are actually very clean animals. On farms, they live in dirty places. So, they become very dirty. In the wild, pigs keep very clean.
They are also really smart. They may be smarter than dogs. So, pigs can learn things from people.
Pigs are very friendly animals. Some people raise them as pets. Of course, people raise the small kind, not the big kind. Small pigs are very cute. And they don't break things in the house. Big pigs usually live outside on farms, not in people's houses.
56. Which words can describe pigs?
A. Dirty and stupid. B. nervous and strange.
C. dangerous and unfriendly. D. intelligent and friendly.
57. What does "in the wild" mean?
A. In nature. B. On farms.
C. Acting crazy. D. In people's houses.
58. Which of the following is true?
A.Pigs like to be dirty.
B.People can teach pigs things.
C.Dogs are smarter than pigs.
D.Only farmers raise pigs.
59.What kind of pigs do people raise in their houses?
A.The very big kind. B.The small kind.
C.The kind from farms. D.The ugly kind.
60.The article NOT discus_____.
A.pigs as pets
B.pigs on farms and in the wild
C. raising dogs
D. people's wrong ideas about pigs
答案及解析：
56. 答案：D
解析：根据文章第一段，猪实际上是非常干净的动物，并且它们非常聪明，可以学习人们教的东西。文章还提到猪是非常友好的动物。因此，描述猪的正确词汇是“intelligent and friendly”。
57. 答案：A
解析：文章中提到，在野外，猪保持非常干净。"In the wild" 意味着在自然环境中，所以正确答案是 "In nature"。
58. 答案：B
解析：文章中提到，猪非常聪明，它们可能比狗还聪明，所以人们可以教猪东西。因此，正确答案是 "People can teach pigs things"。
59. 答案：B
解析：文章最后一段提到，有些人把猪当宠物养，当然是养小的那种，而不是大的那种。因此，人们在家里养的是小猪，正确答案是 "The small kind"。
60. 答案：C
解析：文章讨论了人们对猪的错误观念、农场和野生的猪，以及把猪当宠物养的情况。文章没有讨论养狗的情况，所以正确答案是 "raising dogs"。
