Reading Comprehension 从下列每篇短文的问题后所给的四个选择项中选出一个最佳答案。 Some insects imitate other insects or creatures. If a harmless insect looks like harmful insect or creature, predators stay away. Result: The insect escapes being eaten, and so it survives. This works the other way, too. A harmful insect can look like a harmless one and surprise its prey. Result: The harmful insect gets food to eat, and so it survives. Some insects have coloring or patterns that enable them to mix well with a background. This is called camouflage (伪装). It helps an insect to look like other things around it. That way it is hard for other insects or creatures to see the insect. You must look very carefully to find a camouflaged insect. A camouflaged insect seems to be almost invisible. Camouflage can be helpful in two ways. A camouflaged predator can surprise the insect that it is hunting for food. Or a camouflaged prey becomes almost invisible, and its predator will not see it and attack it. Some insects look like other things in nature, such as twigs (树枝) or leaves.This appearance is called a disguise (掩饰). For disguise to work, the insect stays very still for hours at a time. There are many more insects that have adaptations. Some insects look like dead leaves, tree bark (the outer covering of a tree), beautiful flowers, or something else in nature. These disguises are critical to their survival.