Question

【題目】

Solar storms shake Earth’s magnetic field(磁場(chǎng)). They not only influence human technology, but also animals, reported Forbes.

Studies show that many animals use changes in Earth’s magnetic field to find directions. These changes provide the animals a general compass(指南針) for south and north. Animals can also use them as landmarks.

For example, scientists have found special cells in part of a bird’s eye nervous system(神經(jīng)系統(tǒng)). They seem to react to changes in the magnetic field.

Some fish species, like the common trout，have cells with magnetic sensors in their nasal cavity(鼻腔). In 1994 “magnetic sense” was also discovered in sea turtles.

Some whale species may use magnetic sense to navigate (導(dǎo)航) the oceans. A dysfunction of this sense may explain the still mysterious beachings (動(dòng)物擱淺). Sometimes several hundred animals, such as whales and dolphins, are driven out of water along beaches. They usually can’t breathe under their own weight and die slowly.

【1】What do many animals use to find directions?

A.Solar storms.B.Magnetic field.

C.Changes in magnetic fieldD.General compass

【2】Which of the following animals is mentioned in the passage?

A.DogB.Trout.C.WolfD.Panda

【3】What does the underlined word“dysfunction”in paragraph 5 mean in Chinese?

A.機(jī)能正常B.機(jī)能失調(diào)C.機(jī)能更新D.機(jī)能優(yōu)化

【4】Why whales and dolphins die after being driven out of water?

A.Because they are too heavy.B.Because there is no water.

C.Because they have no magnetic senseD.Because they are hungry.

Answer 1

【答案】

【1】C

【2】B

【3】B

【4】A

【解析】

文章大意：太陽(yáng)風(fēng)暴震動(dòng)地球磁場(chǎng)（磁場(chǎng)）。據(jù)《福布斯》報(bào)道，它們不僅影響人類技術(shù)，而且影響動(dòng)物。研究表明，許多動(dòng)物利用地球磁場(chǎng)的變化來尋找方向。這些變化為動(dòng)物提供了一個(gè)南方和北方的通用羅盤（指南）。動(dòng)物也可以把它們當(dāng)作地標(biāo)。

【1】細(xì)節(jié)理解題。根據(jù)For example, scientists have found special cells in part of a bird’s eye nervous system(神經(jīng)系統(tǒng)). They seem to react to changes in the magnetic field. 例如，科學(xué)家在鳥類眼睛神經(jīng)系統(tǒng)的一部分發(fā)現(xiàn)了特殊的細(xì)胞。它們似乎對(duì)磁場(chǎng)的變化有反應(yīng)�？芍�，故選C。

【2】細(xì)節(jié)理解題。Some fish species, like the common trout，have cells with magnetic sensors in their nasal cavity一些魚類物種，如普通鱒魚，鼻腔中有帶有磁性傳感器的細(xì)胞（鼻腔）可知，故選B。

【3】單詞猜測(cè)題。根據(jù)Some whale species may use magnetic sense to navigate (導(dǎo)航) the oceans. A dysfunction of this sense may explain the still mysterious beachings (動(dòng)物擱淺). 一些鯨魚物種可能利用磁感應(yīng)來導(dǎo)航海洋。這種感覺的功能障礙可以解釋仍然神秘的海灘（動(dòng)物擱淺）可知，故選B.

【4】細(xì)節(jié)理解題。根據(jù)They usually can’t breathe under their own weight and die slowly. 他們通常不能在自己的體重下呼吸，死得很慢�？芍�，鯨魚和海豚被逐出水面后死亡，因?yàn)樗鼈兲�重了。故選A。