Butterflies are some of the most fascinating and beautiful insects in the world. Adult butterflies will live about 2 to 4 weeks. They use their senses of sight, touch, hearing, smell, and taste to survive in the world, find food and mates, lay eggs in an appropriate place, migrate, and avoid hungry enemies.
Butterflies have large pound eyes, which allow them to see in all directions without turning their heads. Like most insects, butterflies are very nearsighted, so they are more attracted to a sea of flowers than individual plants. Butterflies do not “see” colors such as red, green, and yellow, but they can sense sunlight, which indicates the direction the sun is shining, as well as ultraviolet light, which is present on many flowers and guides butterflies to honey sources.
Butterflies have a very well-developed sense of smell, but it is not in their nose, since they don't have one. Sense receptors are located in their antennae, feet, and many other parts of the body. They can help butterflies find their favorite flower honey food, and mates.
Butterflies' feet have sense organs that can taste the sugar in flower honey, letting the butterflies know if something is good to eat or not. Some females also carefully choose host plants by tasting to find appropriate places to lay their eggs. Adult butterflies feed their babies using a long tube. Butterflies force blood into the tube to straighten it out, allowing them to feed. Butterflies get all their food from this tube.
Butterflies don't have ears. Instead they “hear” sounds through their wings by sensing changes in sound vibrations.
Butterflies may possess senses we don't even know about yet, because their body structure is very different from ours, and therefore difficult to understand, when observed through our own human senses.
【小题1】The text mainly focuses on .A．butterflies' living habitsB．butterflies' beautyC．butterflies' sensesD．butterflies' daily activities【小题2】What can we learn from the 2nd paragraph?A．Butterflies can see in all directions and don't need to turn heads.B．Butterflies have good eyesight.C．Butterflies are sensitive to bright colors including red and yellow.D．Butterflies cannot sense the ultraviolet light.【小题3】Why do female adult butterflies carefully choose the host plants?A．To find highqualified honey.B．To have a good place for living.C．To make it easier for them to hide from the enemies.D．To find a proper place for their eggs.C
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(答案→)C
解析：文章介绍了蝴蝶的各种感觉，包括每种感觉器官的功能和作用。
【小题1】主旨题：题目的意思是“文章主要专注于什么？”。在文中第一句话“Butterflies have large pound eyes, which allow them to see in all directions without turning their heads.可以体现出来，说明这篇文章主要讲的是蝴蝶的感觉，因此选C。
【小题2】细节题：题目的意思是“我们从第二段了解到什么?”第二段的最后一句话“Such an inverted status display is most likely to occur where the person’s high status is conveyed in ways other than with clothing, such as having a famous face.”可知蝴蝶可以看见四面八方，不用转动头，选A。
【小题3】细节题：题目的意思是“为什么雌蝴蝶仔细选择植物?”根据第四段的句子：Some females also carefully choose host plants by tasting to find appropriate places to lay their eggs.可知她们是想找一个适当的地方产卵，答案是D。