The dog has always been considered man′s best friend.Always note

The dog has always been considered man′s best friend.Always noted for being particularly?faithful in watching over children,he also has his place by the fireside,in the cow pasture,on the?sheep range(放牧区),and beside the hunter in forest.He is easy to train,works hard,and often?performs astonishing feats.And in the frozen polar regions he was once the principal motive power,before being lately displaced by the plane and helicopter. Because he howls or whines in the presence of impending death,the dog was once thought to?have supernatural powers and believed to be capable of seeing gods and ghosts invisible to men.Actually,the.basis for these beliefs lies in the hound′s sensibility to people′s feelings and his superior?hearing ability and sense of smell,which enable him to detect signs hidden from human observation.His record of saving lives is outstanding,for he often gives warning of fire and other dangers not noticed by his master. The dog′s major contribution,however,has been to medical research.Both his diet and his?structure are comparable to those of the human being,and so he has been the subject Of countless?demonstrations and experiments.Open-heart surgery has been made possible largely because of the?dog.But his sacrifice has repaid his own species as well by safeguarding it from rabies(狂犬病),distemper,and other diseases. The dog has always been noted for__________.
A、protecting children
B、assisting shepherds
C、helping hunters
D、herding cattle
【正确答案】：A
【题目解析】：在给出的文本中，描述了狗作为人类的朋友所扮演的多种角色和它的特性。文本开头就明确指出：“The dog has always been considered man′s best friend. Always noted for being particularly faithful in watching over children...”，这里明确提到狗一直以其对孩子们的特别忠诚而闻名。 接下来，文本详细描述了狗在生活中的多个场景中的角色，包括在火炉旁、在牧场、在放牧区以及和猎人在森林中。虽然文本也提到了狗在牧羊、帮助猎人和其他方面的贡献，但这些并不是文本强调狗一直被注意到的特点。 在文本的第二段中，虽然提到了狗的一些超自然能力的传说，但这些是基于狗对人的情感的敏感性以及它卓越的听觉和嗅觉能力，并不是狗一直被注意到的特点。 最后一段虽然提到了狗在医学研究中的贡献，但这与题目所问的“狗一直被注意到的特点”并不直接相关。 综上所述，根据文本的描述，狗一直被注意到的特点是它特别忠诚于照看孩子。因此，正确答案是A. protecting children。