Question

【题目】 Think of the animal world. And a group of colorful wild animals will spring to mind: a parrot's rainbow feathers or the showy scales of sea fish. But, many mammals(哺乳动物) on the planet come in only two colors: black and white. Spend some time exploring what science has discovered about these animals' appearances, and you’ll see that basic black and white isn't so basic at all.

	The panda's white body helps it hide in snowy areas. The arms and legs are black, helping it hide in forests. The markings on its head are not used to hide, but to communicate. Black ears can act as a warning to enemies.
	Depending on the species, black skunks(臭鼬) may wear white spots that act as covering or white stripes that signal enemies to be aware of their smelly spray, which causes no real harm to its victims, but it makes them uncomfortable.
	Zebras' thin coats make them more vulnerable than long-haired animals to biting flies that carry disease, but the coats stripes prevent flies from landing on them, for reasons that scientists are still studying. Further, their attractiveness to flies increases with stripe width. No two zebras' stripes are exactly the same.

【1】What color are a parrot’s feather according to passage?

A. Light green.B. Showy.C. Colorful.D. Black and white.

【2】What do pandas, skunks and zebras have in common?

A. The color of their bodies prevents them from being attacked.

B. Their ears can act as a warning to enemies.

C. Their smelly spray can drive the enemies away.

D. Their coat strips can prevent flies landing on them.

【3】According to the passage, which of the following sentences is TRUE?

A. Zebras with wider stripes are less attractive to flies.

B. Both white spots and white stripes help skunks kill their victims.

C. The panda's white part help it hide in snow.

D. Scientists have already known all the secrets about the stripes.

【4】What does the underlined word "vulnerable" mean?

A. Being easily landed.

B. Being easily attracted.

C. Being easily discovered.

D. Being easily attacked.

【5】Which could be the best title of the passage?

A. Why Animal Stripes Come in Different Shapes

B. Why So Many Animals Wear Black-and-White Coats

C. How Wild Animals Protect Themselves from Enemies

D. How Black and White Become Basic Colors in Animal World

Answer 1

【答案】

【1】C

【2】A

【3】C

【4】D

【5】B

【解析】

本文主要介绍了地球上的许多哺乳动物皮毛只有黑色和白色两种颜色。解释了熊猫、黑臭鼬和斑马黑白皮毛的奥秘。

【1】考查细节理解。根据第1段第2句And a group of colorful wild animals will spring to mind: a parrot's rainbow feathers or the showy scales of sea fish. 一组五颜六色的野生动物会浮现在人们的脑海中：鹦鹉的彩虹羽毛或海鱼的艳丽鳞片。可知鹦鹉的羽毛五颜六色；故选C。

【2】考查细节理解。根据表格一The panda's white body helps it hide in snowy areas. The arms and legs are black, helping it hide in forests. 熊猫的白色身体帮助它躲藏在下雪的地方。胳膊和腿是黑色的，帮助它藏在森林里；表格二black skunks(臭鼬) may wear white spots that act as covering or white stripes that signal enemies to be aware of their smelly spray, 黑色臭鼬身上的白色的斑点或白色条纹，用来向敌人发出信号，让他们意识到它们的臭味；与表格三中the coats stripes prevent flies from landing on them（斑马）皮毛的条纹阻止苍蝇降落在它们身上；可知熊猫、臭鼬和斑马共同点是他们身体的颜色可以防止他们受到攻击；故选A。

【3】考查细节理解。根据表格三倒数第二句Further, their attractiveness to flies increases with stripe width. （此外，它们对苍蝇的吸引力随着条纹宽度的增加而增加。）可知A（斑马的条纹越宽，对苍蝇的吸引力就越小。）是错误的；根据表格二中which causes no real harm to its victims, but it makes them uncomfortable. （不会对受害者造成真正的伤害，但会让他们感到不舒服。）可知B（白色斑点和白色条纹都能帮助臭鼬杀死受害者。）错误的；根据表格三第1句中for reasons that scientists are still studying.（是什么原因科学家们还在研究中。）可知D（科学家们已经知道了条纹的所有秘密。）错误；根据表格一第一句The panda's white body helps it hide in snowy areas.（熊猫的白色身体帮助它躲藏在下雪的地方。）可知C（熊猫的白色部分帮助它躲在雪里。）正确；故选C。

【4】考查词义猜测。根据此句Zebras' thin coats make them more vulnerable than long-haired animals to biting flies that carry disease, but the coats stripes prevent flies from landing on them, for reasons that scientists are still studying. 句意：斑马的薄薄的皮毛使它们比长毛的动物更容易被携带疾病的苍蝇叮咬，但皮毛的条纹阻止苍蝇降落在它们身上，原因是科学家们仍在研究。可知vulnerable意思是“容易被叮咬的，易受攻击的，易受伤害的”；A. Being easily landed. 容易着陆；B. Being easily attracted. 容易被吸引；C. Being easily discovered. 容易被发现；D. Being easily attacked. 容易被攻击。故选D。

【5】考查主旨理解。本文通过解释熊猫、黑臭鼬和斑马黑白皮毛的奥秘，来说明为什么地球上的许多哺乳动物皮毛只有黑色和白色两种颜色。故本文最佳标题是为什么这么多动物皮毛是黑白相间的；故选B。