Question

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 near?sighted, 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 ears. 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

1.B

2.C

3.D

4.A

5.D

【解析】

试题分析：蝴蝶是世界上为数不多的神秘又美丽的昆虫之一。成年蝴蝶能活2-4周的时间，它们凭借视觉、触觉、听觉、嗅觉和味觉得以在这个世界上生存。

1.Butterflies have large compound eyes(复眼), which allow them to see in all directions without turning their heads.”可知，蝴蝶有着大大的复眼，不转动头部就能看到周围的情况，故选B。

2.Instead they “hear” sounds through their wings by sensing changes in sound vibrations.”可知，蝴蝶没有耳朵，它们依靠翅膀来感知声音的震动，故选C。

3.Some females also carefully choose host plants by tasting to find appropriate places to lay their eggs.”可知，一些雌性蝴蝶精心挑选筑巢地点，是为了寻找合适的产卵地，故选D。

4.because their body structure is very different from ours, and therefore difficult to understand,”可知，蝴蝶的身体构造与人的有着很大的不同，因此也难以完全理解蝴蝶。人们还需要更多的研究来彻底了解蝴蝶这种昆虫，故选A。

5.Butterflies have large compound eyes ...Butterflies have a very well-developed sense of smell ...Butterflies' feet have sense organs that can taste the sugar ...Butterflies don't have ears.”可知，文章主要写了蝴蝶的感觉器官，故选D。

考点：生物类短文阅读