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Albert Einstein(1879-1955)

Early Life

Albert Einstein was born on I4th March,1879 in Germany. He was an extraordinary (非凡的)person since he was born. Einstein wasn’t able to speak a word until three. He was curious(好奇的)and imaginative. He loved watching things carefully and asked a lot of questions about them

His questions were often hard to answer for teachers.

Schooling

Einstein started school in 1885. Though he did well in maths and science, he failed in many subjects like history geography and languages. He was not the teachers favourite. He didn’t enjoy going to school. Einstein finished high school in Switzerland and entered a university in Zurich. He graduated(大学毕业)as a teacher of maths and physics in1900.

Scientific Work

After graduation. Einstein worked at the Patent Office. He spent much time studying physics. By 1909, Einstein had become a top scientist. Though he became successful in the field of science, he still put great effort in scientific research. Finally, he won the Nobel Prize for physics in 1921.

Later life

Einstein kept at his research until he died in 1955. Scientists studied his brain(脑)after his death to see if there was anything special about it. However there was no conclusion(结论).

Today, many famous scientists still think Einstein is the smartest man in the world.

1.Einstein loved watching things carefully and ______about them

2.Though Einstein_______ he failed in many subjects.

3.Finally. Einstein won the Nobel Prize _______in1921

4.Scientists studied Einstein s brain after he died so that_______.

5.Many famous scientists still think Einstein is_______.

1.asked a lot of questions 2.did well in maths and science 3.for physics 4.they could see if there was anything special about it 5.the smartest man in the world 【解析】本文主要介绍了Albert Einste...

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How do we know the time? A clock, a watch or a cell 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 w1.of telling the time.

About 5,500 years ago, the Egyptians i2.the sun clock. This was a tall stone structure. Its shadow (影子)showed the movement of the s3.they were able to determine(测定)midday.

About 3,500 years ago,the Egyptians made a sundial. It was smaller than the sun clock and could measure (测量)the time for half a day. On c4.days or at night it was impossible to tell the time with a sun clock or a sundial.

Water clocks were the f5.clocks not to use the sun. The idea is simple. Water flows(流动) from one container(容器)to another. When the water reaches a certain l 6. it moves a lever (控制杆)and this 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 f7.

o keep accurate(精确的)time.

In the 13th century. the mechanical clock was invented. This was more accurate, b8.was expensive to make. Over the next few centuries it was developed. For example, springs(发条)were added around 1500. This i9.accuracy and allowed clocks to be smaller.

In 1927, the first quartz clock was developed. Clocks became cheaper to build and own. People began depending on them more and more to run businesses, markets and so on.

More recently, in1956, came the digital clock. And nowadays satellites(人造卫星)send our cell phones the time to the exact second. There has been a lot of progress in timekeeping but some things never c10.. Man of us still have trouble getting out of bed on time and not missing appointments.

1.ways 2.invented 3.sun 4.cloudy 5.first 6.level 7.failed 8.but 9.improved 10.change 【解析】本文主要说明了是计时工具的发展历史,从原始计时到机械计时再到数码计时。 1. 前文提到”A clock, a watch or a cell phone”,...
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