Question

How could we tell time if there were no watches or clocks anywhere in the world?

The sun was probably the world’s first “clock”, except in the far north, where the Eskimos(愛斯基摩人) live. There it’s dark most of the winter, and light most of the summer. But in most of the world, people have used the sun for a clock. Even today if you don’t have a clock that shows time, you still know that when the sun shines, it’s day; and when it’s dark, it’s night. The sun can not only tell you whether it’s day or night but also it’s morning, noon, or afternoon. When the sun is almost directly overhead, it’s noon.

People who live near the sea can tell time from the tides. In the daytime, for about six hours, the water rises higher and higher on the beach. And then it goes down and down for another six hours. The same thing happens again at night. There are two high tides and two low tides every 24 hours.

Seamen on a ship learn how to tell time by looking at the moon and the stars .The whole sky is their clock.

In some places in the world the wind comes up at about the same time every day or changes direction or stops blowing. In these places, the wind can be the clock.

A sand clock is an even better clock. If you had fine dry sand in a glass shaped like the one in the picture above, you would have what is called an hourglass. The sand in the hourglass goes from the top part to the bottom part in exactly one hour. When the hourglass it turned over, the sand will take another hour to go back again.

1.The Eskimos in the far north can’t use the sun for a clock because ______.

A. they know very little about the sun

B. the sun there never goes down in winter.

C. it’s too cold for them to go out to watch the sun

D. there are long dark winters and long light summers in the far north

2.The underlined word “tides” in paragraph 3 means ___________.

A. ocean current

B. storm

C. a regular rise and fall of the sea

D. wave

3.In which part of the newspaper can you probably read this passage?

A. News B. Science

C. Business D. Advertisement

4.What’s the best title for the passage?

A. Different Ways to Tell Time

B. Useful Machine to Tell Time

C. The History of the Clock

D. The Development of the Clock

5.How many ways are mentioned in the passage to tell time?

A. Five B. Four C. Six D. Three

 

Answer 1

1.D

2.C

3.B

4.A

5.A

【解析】

試題分析：這篇短文主要介紹了沒有手表和鐘表,其他的方式也可以給人們指示時間。如太陽的轉(zhuǎn)動，大海的潮汐，風的變化，以及沙漏等。

1.細節(jié)理解題。根據(jù)第二段There, it’s dark most of the winter, and light most of the summer描述可知冬天的夜太長，夏天的日太長，故選D。

2.詞義判斷題。根據(jù)第三段In the daytime, for about six hours, water rises higher and higher on the beach. And then it goes down and down for about six hours.的解釋漲潮六個小時，落潮六個小時，可知是指潮汐，故選B。

3.歸納理解題。根據(jù)短文描述可知這是一段科普文章，故選B。

4.標題歸納題。根據(jù)短文的主旨大意，可知主要介紹了除了鐘表之外人們辨別時間的方式。故選A。

5.5】細節(jié)理解題。根據(jù)短文描述太陽的轉(zhuǎn)動，大海的潮汐，月亮和星星，風的變化，以及沙漏可以指示時間，故選A。

考點：科學文化類閱讀