题目

有些蛾类初羽化时，只靠味觉来寻找食物，因此不能找到无味的花。但当它采过无味的花后，就建立了视觉和食物之间的联系,以后就能采无味的花了。这种行为称为（ ）A. 学习行为 B. 取食行为C. 先天性行为 D. 遗传行为 答案：【答案】A【解析】试题分析：蛾初羽化时只靠味觉来找食物不能找到无味的花，当它采过无味的花后，最后建立了视觉和事物之间的联系，以后就能采无味的花，可见这种行为是后天经历之后学得的一种行为，属于学习行为。词汇运用，根据句意及首字母或汉语提示完成单词。1. —Lucy, where is your mother?  —She is busy cooking in the k________．2. I looked for my cat around the house, but I can't find it a____．3. In ________(现代的) society, people use computers to help them finish some hard  work.4. It is _______(奇怪的)that Tom didn't come   to school today.5. Do you think the writer's experience____(令人惊异的)?6. I saw a UFO_________(land) on Center Street at 10:00 last night.7. Ted had a very _________ (usual) experience  yesterday. He saw an alien.8. —What ________ you _______ (do) when he  arrived? —I ________(watch) TV at that time.9. I can't imagine what ________(happen) in the  future.10.The boy ______ (climb) the tree when the  teacher came over.