Question

【題目】 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(哺乳動物) 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】

本文主要介紹了地球上的許多哺乳動物皮毛只有黑色和白色兩種顏色。解釋了熊貓、黑臭鼬和斑馬黑白皮毛的奧秘。

【1】考查細節(jié)理解。根據(jù)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. 一組五顏六色的野生動物會浮現(xiàn)在人們的腦海中：鸚鵡的彩虹羽毛或海魚的艷麗鱗片�？芍�鸚鵡的羽毛五顏六色；故選C。

【2】考查細節(jié)理解。根據(jù)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. 熊貓的白色身體幫助它躲藏在下雪的地方。胳膊和腿是黑色的，幫助它藏在森林里；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點或白色條紋，用來向敵人發(fā)出信號，讓他們意識到它們的臭味；與表格三中the coats stripes prevent flies from landing on them（斑馬）皮毛的條紋阻止蒼蠅降落在它們身上；可知熊貓、臭鼬和斑馬共同點是他們身體的顏色可以防止他們受到攻擊；故選A。

【3】考查細節(jié)理解。根據(jù)表格三倒數(shù)第二句Further, their attractiveness to flies increases with stripe width. （此外，它們對蒼蠅的吸引力隨著條紋寬度的增加而增加。）可知A（斑馬的條紋越寬，對蒼蠅的吸引力就越小。）是錯誤的；根據(jù)表格二中which causes no real harm to its victims, but it makes them uncomfortable. （不會對受害者造成真正的傷害，但會讓他們感到不舒服。）可知B（白色斑點和白色條紋都能幫助臭鼬殺死受害者。）錯誤的；根據(jù)表格三第1句中for reasons that scientists are still studying.（是什么原因科學(xué)家們還在研究中。）可知D（科學(xué)家們已經(jīng)知道了條紋的所有秘密。）錯誤；根據(jù)表格一第一句The panda's white body helps it hide in snowy areas.（熊貓的白色身體幫助它躲藏在下雪的地方。）可知C（熊貓的白色部分幫助它躲在雪里。）正確；故選C。

【4】考查詞義猜測。根據(jù)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：斑馬的薄薄的皮毛使它們比長毛的動物更容易被攜帶疾病的蒼蠅叮咬，但皮毛的條紋阻止蒼蠅降落在它們身上，原因是科學(xué)家們?nèi)栽谘芯��？芍?/span>vulnerable意思是“容易被叮咬的，易受攻擊的，易受傷害的”；A. Being easily landed. 容易著陸；B. Being easily attracted. 容易被吸引；C. Being easily discovered. 容易被發(fā)現(xiàn)；D. Being easily attacked. 容易被攻擊。故選D。

【5】考查主旨理解。本文通過解釋熊貓、黑臭鼬和斑馬黑白皮毛的奧秘，來說明為什么地球上的許多哺乳動物皮毛只有黑色和白色兩種顏色。故本文最佳標(biāo)題是為什么這么多動物皮毛是黑白相間的；故選B。