[题目]- Is Jack at school today?- No. He’s at home he has a bad cold.A. or B. because C. but D. so 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】— Is Jack at school today?

— No. He’s at home ______ he has a bad cold.

A. or B. because C. but D. so

【答案】B

【解析】试题分析：句意：—今天杰克在学校吗？—不，他因为重感冒在家了。 A. Or或者；B. Because因为；C. but 但是；D. So因此。根据句意及语境此题应选B。

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A. A number of, women B. The number of, women

C. A number of, woman D. The number of, woman

【题目】 How do we know the time? A clock, a watch or a mobile phone can help us. However, many years ago there were no clocks and knowing the time was not so easy. Over the centuries people have developed different ways of telling the time.

About 5, 500 years ago, the Egyptians invented the sun clock. This was a tall stone building. Its shadow(影子) showed the movement of the sun. So people were able to know midday. The Egyptians made a sundial about 3, 500 years ago. It was smaller than the sun clock and could let people know the time for half a day. On cloudy days or at night it was impossible to tell the time with a sun clock or a sundial. Water clocks were the first clocks not to use the sun. The idea is simple. Water flows(流动) from one bottle to another. When the water reaches a certain level, it shows the hours. The Egyptians used water clocks about 3, 400 years ago. These clocks were popular in the Middle East and China. But they failed to make people know the exact time.

In the 13th century, the mechanical clock was invented. This was more exact, but it was expensive to make one. Over the next few centuries it was developed. For example, springs(发条) were added around 1500. This enabled people to get the correct time and allowed clocks to be smaller. In 1927, the first quartz clock was developed. Clocks became cheaper to build. It’s also cheaper for ordinary people to own a clock. People began depending on them more and more to run business, markets and so on. More recently, in 1956, came the digital clock. And nowadays satelites send our mobile phones the time to the exact second.

There has been a lot of progress in timekeeping. Clocks are always changing but some things never change. Many of us still have trouble getting out of bed on time and not being late for school or work.

【1】According to the passage, we can’t use ________ to tell the time on a rainy day.

A.water clockB.sun clockC.digital clockD.mechanical clock

【2】What’s the meaning of the underlined word “ordinary” in the third paragraph?

A.现代的B.特殊的C.富有的D.普通的

【3】How many kinds of clocks are mentioned in the passage?

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

【4】Which of the following shows the structure(结构) of the passage?

(①=paragraph 1 ②= pargaph 2,…)

A.B.