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2017届高考英语二轮专题总复习阅读能力培养精品系列（五十三） 完形填空 The basic meaning of“pet”is an animal we keep for emotional (情感的) rather than economic reasons. A pet animal is __1__ as a companion, and we all need companions to keep as feeling happy.__2__ pets offer more than mere(only) companionship: they invite us to love and be loved. Many __3__ feel their pets understand them, for animals are __4__ to sense anger and sorrow. Often a cat or dog can comfort us __5__ when human words don't help. We feel loved, too, by the way pets __6__ us for a home, for food and drink. Dogs __7__， look up to their owners, __8__ makes them feel important and needed. A pet can be something __9__ to each member of the family, another baby to the mother, a sister or brother to a(n) __10__ child, a grandchild to the elderly, but for all of us pets provide __11__ and companionship. It has __12__ been suggested that tiny pets __13__ be sent as companions to astronauts on space ships, to help reduce the stress (紧张) and __14__ of space flights. In this Plastic Age, when most of us live in large cities, pets are particularly important for __15__. A pet in the family keeps people in __16__ with the more natural，animal world. Seeing an animal give birth brings understanding of the naturalness of childbirth, and seeing a pet __17__ helps a child to cope with sorrow. Learning to __18__ a pet helps a child to grow up into a loving adult who feels __19__ toward those dependent on them. Rightly we teach children to be good to their pets. They should learn, too, that pets are __20__ for us human beings. | 
