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(復(fù)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（紫外線）, 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（觸角）, 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（振動）.

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】試題分析：本文主要介紹了蝴蝶的幾種感覺：視覺，嗅覺，聽覺和觸覺。在作比較中將幾種感覺說得生動而明晰。雖然人類了解了蝴蝶的大致構(gòu)造，但是由于蝴蝶與人類身體結(jié)構(gòu)很不一樣，故目前階段的了解還是淺顯的。對于蝴蝶的研究還有很長一段路要走。

1. have large compound eyes, which allow them to see in all directions without turning their heads.”可知，蝴蝶有很大的復(fù)眼，所以它們能夠不轉(zhuǎn)頭就看到所有方向。故選B。

2. receptors are located in their antennae, feet, and many other parts of the body.第二句說明感覺受體很多，有觸角、腳和身體的其他部位。而蝴蝶的翅膀也差不多就是整個身體。故選C，它們用翅膀感覺事物的震動。

3. females also carefully choose host plants by tasting to find appropriate places to lay their eggs.“一些雌性蝴蝶為了找到一個合適的地方產(chǎn)卵會通過仔細品嘗來挑選寄主植物”易知雌性蝴蝶品嘗寄主植物的目的就是為了找個合適的地方產(chǎn)卵。故選D。

4. may possess senses we don't even know about yet, because their body structure is very different from ours“蝴蝶也許還擁有我們不知道的感覺，因為他們的身體結(jié)構(gòu)與我們?nèi)祟惖暮懿灰粯��！笨芍�我們還不是很了解蝴蝶，對蝴蝶還需要很多的研究。故選A。

5.

考點：考查說明文閱讀。