Question

【题目】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 compound eyes(复眼), 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（紫外线）, 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（触角）, 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 ars. Instead they “hear” sounds through their wings by sensing changes in sound vibrations（振动）.

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.

【1】What can we learn from the 2nd paragraph?

A. Butterflies have good eyesight.

B. Butterflies can see in all directions and don't need to turn heads.

C. Butterflies are sensitive to bright colors including red and yellow.

D. Butterflies cannot sense the ultraviolet light.

【2】How do butterflies hear sounds?

A. Using their feet to sense the vibration of things

B. Using their ears to listen directly

C. Using their wings to sense the sound vibrations

D. Using their antennae to judge the sound

【3】Why do female adult butterflies carefully choose the host plants?

A. To find high-qualified 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.

【4】What does the last paragraph imply?

A. There’s a long way to understand butterflies well

B. Butterflies give great help to human beings

C. Butterflies are the most beautiful insects in the world

D. Butterflies possess more senses than humans

【5】The text mainly focuses on ________.

A. butterflies' living habits B. butterflies' beauty

C. butterflies' daily activities D. butterflies' senses

Answer 1

【答案】

【1】B

【2】C

【3】D

【4】A

【5】D

【解析】试题分析：本文主要介绍了蝴蝶的几种感觉：视觉，嗅觉，听觉和触觉。在作比较中将几种感觉说得生动而明晰。虽然人类了解了蝴蝶的大致构造，但是由于蝴蝶与人类身体结构很不一样，故目前阶段的了解还是浅显的。对于蝴蝶的研究还有很长一段路要走。

【1】细节理解题。由第二段第一句话“Butterflies have large compound eyes, which allow them to see in all directions without turning their heads.”可知，蝴蝶有很大的复眼，所以它们能够不转头就看到所有方向。故选B。

【2】推理判断题。定位到第三段第一、二句。第一句说蝴蝶的嗅觉很灵敏，但是它们没有感触器官，因此触觉很不发达。Sense receptors are located in their antennae, feet, and many other parts of the body.第二句说明感觉受体很多，有触角、脚和身体的其他部位。而蝴蝶的翅膀也差不多就是整个身体。故选C，它们用翅膀感觉事物的震动。

【3】细节理解题。定位到第四段的第二句话Some females also carefully choose host plants by tasting to find appropriate places to lay their eggs.“一些雌性蝴蝶为了找到一个合适的地方产卵会通过仔细品尝来挑选寄主植物”易知雌性蝴蝶品尝寄主植物的目的就是为了找个合适的地方产卵。故选D。

【4】概括归纳题。最后一段开头谈到Butterflies may possess senses we don't even know about yet, because their body structure is very different from ours“蝴蝶也许还拥有我们不知道的感觉，因为他们的身体结构与我们人类的很不一样。”可知我们还不是很了解蝴蝶，对蝴蝶还需要很多的研究。故选A。

【5】主旨大意题。本文主要介绍了蝴蝶的几种感觉：触觉，听觉，视觉，嗅觉。同时又在这几种感觉中展开比较，说明因为有复眼，她们的视觉很广；嗅觉也很灵敏。但是听觉和触觉则其次。故选D。