Question

The earth is a mysterious place that never stops to amaze. There are many places completely unimaginable. The incapability to understand the real story behind some of these phenomena draws many people.

Blood Falls, Antarctica

How is it that the coldest and driest place on the planet has a blood-red waterfall pouring down slowly into the McMurdo Dry Valleys, some of the most extreme desert lands on Earth? What causes the mysterious flow was only recently discovered in a study. Scientists believed for many years red algae(红藻)gave it the unusual color. But now research has shown that iron oxide(氧化物)is responsible for it. The waterfall even contains strange bacterial life forms.

Magnetic Hill, Moneton, New Brunswick

Be very careful if you choose to drive to the bottom of this hill. Stories about what happens there have been around since early 1900s. As impossible as it sounds, your car will start to roll uphill. “And it doesn’t just work on cars-vans, trucks and even tour buses roll upward. ” according to Tourism New Brunswick.

Racetrack Playa, Death Valley, California

Located in a remote valley between the Cottonwood and Last Chance Ranges, Racetrack Playa is a place of real beauty and mystery. The Racetrack is a dry lakebed, best known for its strange moving rocks. It looks like they “sailed” through the valley. Although no one has actually seen the rocks move, the long moving tracks left behind in the mud surface of the Playa prove their activity. The most logical explanation so far is that ice forms covering the stones, causing them to move.

1.What’s special about Racetrack Playa?

A. The lakebed there is red.

B. The rocks there can move.

C. There is no living creature.

D. The rocks there can make sound.

2.Which of the following is true?

A. It is red algae that gives Blood Falls the unusual color.

B. These mysterious phenomena have been given exact explanations.

C. People have witnessed the rocks moving.

D. When you drive at the bottom of Magnetic Hill, your car will go up the hill.

3.What’s the purpose of the text?

A. To tell amazing stories.

B. To advertise new places.

C. To introduce distinguished places

D. To uncover mysterious phenomena.

Answer

1. B

2. D

3. C

【解析】

本文为说明文。地球是一个神秘的地方，它永不停息地让人惊奇。有很多地方是完全无法想象的。许多人无法理解这些现象背后的真实故事。文章介绍了三处神奇的地方。

1.细节理解题。根据Racetrack Playa, Death Valley, California部分的The Racetrack is a dry lakebed, best known for its strange moving rocks.可知，Racetrack Playa是一个干涸的湖床，以其奇特的移动岩石而闻名。故B选项正确。

2.细节理解题。根据Magnetic Hill, Moneton, New Brunswick部分的As impossible as it sounds, your car will start to roll uphill. And it doesn’t just work on cars-vans, trucks and even tour buses roll upward.（虽然听起来不可能，但你的车会开始上坡，它不仅适用于汽车——面包车、卡车甚至旅游巴士都是向上滚动的）可知，当你在磁山的底部开车时，你的汽车就会爬坡。故D选项正确。

3.写作目的题。通读全文可知，本文主要介绍了地球上三个非常神奇的地方。故C选项正确。