Question

【题目】

Solar storms shake Earth’s magnetic field(磁场). 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(指南针) 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(神经系统). 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 (导航) the oceans. A dysfunction of this sense may explain the still mysterious beachings (动物搁浅). 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.机能正常B.机能失调C.机能更新D.机能优化

【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：太阳风暴震动地球磁场（磁场）。据《福布斯》报道，它们不仅影响人类技术，而且影响动物。研究表明，许多动物利用地球磁场的变化来寻找方向。这些变化为动物提供了一个南方和北方的通用罗盘（指南）。动物也可以把它们当作地标。

【1】细节理解题。根据For example, scientists have found special cells in part of a bird’s eye nervous system(神经系统). They seem to react to changes in the magnetic field. 例如，科学家在鸟类眼睛神经系统的一部分发现了特殊的细胞。它们似乎对磁场的变化有反应。可知，故选C。

【2】细节理解题。Some fish species, like the common trout，have cells with magnetic sensors in their nasal cavity一些鱼类物种，如普通鳟鱼，鼻腔中有带有磁性传感器的细胞（鼻腔）可知，故选B。

【3】单词猜测题。根据Some whale species may use magnetic sense to navigate (导航) the oceans. A dysfunction of this sense may explain the still mysterious beachings (动物搁浅). 一些鲸鱼物种可能利用磁感应来导航海洋。这种感觉的功能障碍可以解释仍然神秘的海滩（动物搁浅）可知，故选B.

【4】细节理解题。根据They usually can’t breathe under their own weight and die slowly. 他们通常不能在自己的体重下呼吸，死得很慢。可知，鲸鱼和海豚被逐出水面后死亡，因为它们太重了。故选A。