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

The sun is probably the world’s first “clock”, except in the far north, where the Eskimos(爱斯基摩人)live. There, it’s dark most of the winter, and bright most of the summer. But in most of the world, people have used the sun as a clock. Even today, if you don't have a clock, you can still know that when the sun shines, it’s day and when it’s dark, it’s night. The sun can also tell you if it's morning, noon, or afternoon.

Some people live near the sea. They have their special way to tell time. 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. The same thing happens again at night. There are two high tides and two low tides every 24 hours. Seamen on the 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, you would have what is called an hourglass. The sand in the hourglass goes from the top part to the bottom in exactly one hour. When the hourglass is turned over, the sand will take another hour to go back again.

1.From the passage we can know there are________ ways to tell time besides the clock and watch.

A.3 B.4 C.5 D.6

2.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.it has long dark winters and long bright summers

3.In which column of a newspaper can you probably read this passage?

A.Entertainment. B.Science. C.Advertisement. D.Sports.

4.What is the best title for the passage?

A.Different Ways to Tell Time B.How the Clock Was Invented

C.The Development of the Clock D.A Useful Machine to Tell Time

Dinner customs are different around the world. If you are a guest in Ghana, this information will help you a lot.

In Ghana,dinner is usually from four in the afternoon to six in the evening. But there are no strict rules about time. Whenever a guest arrives,a family offers food. When you go to a home, the person who receives guests takes you to the living room first. At this time everyone welcomes you. Then you go to the dinning room. There you wash your hands in a bowl of water. All the food is on the table.

In Ghana you usually eat with your fingers. You eat from the same dish as everyone else .But you eat from one side of the dish only. It is not polite to get food from the other side of the dish. After dinner, you wash your hands again in a bowl of water.

Most meals in Ghana have a dish called fufu. People in Ghana make fufu from the powder of some plants. Sometimes they cut the fufu with a saw because it is very hard. You must chew fufu well,or you may get sick. You eat fufu with the fingers of your right hand only.

1.From the passage we know that in Ghana ________.

A.people usually invite their guests to dinner late in the evening B.the rules for dinner time aren’t strict

C.dinner is always at six in the evening D.a family offers food only at four in the afternoon

2.If you are a dinner guest in Ghana,the host always takes you to ________.

A.the dining room first B.the living room first C.the kitchen first D.the garden first

3.People in Ghana usually eat________.

A.with their spoons B.with their fingers

C.from the other side of the dish D.from one side of a dish to the other

4.In fact,most dishes in Ghana ________.

A.have fufu in them B.are too hard to eat

C.are not very hard D.are cooked with the powder of some plants

5.When you eat fufu,you'd better ________.

A.cut it with a saw B.use your right hand only C.chew it well D.all of the above

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