问答题
下面的短文有10处空白,每处空白后的括号内有一个词,请根据短文内容将其正确的形式填入文中,以恢复文章原貌。请在答题卡上作答。 Can Dogs See Colors? Man’s best friend is colorblind (色盲).Fortunately (fortunate), his 41 (survive) does not depend upon the ability to see colors.The 42 (sharp) of his sense of smell makes up for his 43 (fail) to see colors.It helps him to tell between things. 44 (study) support the conclusion that dogs live in a 45 (color) world.The testing done primarily 46 (focus) on the dogs’ responses to colors for food.Dogs could not tell the 47 (differ) between one color signal for food, and other colors that were not for food. Most animals’ lack of ability to see colors can be 48 (easy) understood.Many colorblind animals hunt for food in the dark of night.Their other senses have highly 49 (develop).Thus their lack of color vision does not affect them. Other animals with color vision are 50 (monkey) and apes (猿).Both can be divained to open a colored door, behind which is food. 【文章导读】本篇文章主要讲述的是狗是不能分辨颜色的,为此他们还做了一个实验。不能分别颜色对于动物来说很正常,能分辨的动物只有猴和猿。