There have been many great inventions or things that changed the way we live. The first great invention was the one that is still very important today——the wheel. This made it easier to carry heavy things and to travel long distance.
For hundreds of years after that there were few inventions that as much effect as the wheel . Then in the early 1800s the world started to change. There was little unknown land left in the world. People didn’t have to explore much any more. They began to work instead to make life better.
In the second half of the 19th century many great inventions were made. Among them were the camera, the light and the radio. These all play a big part in our daily life today.
The first part of the 20th century saw more great inventions. The helicopter in 1909, movies with sound in 1926, the computer in 1928, jet planes in 1930. This was also a time when a new material was first made. Nylon came out in 1935. It changed the kind of clothes people wore.
The middle part of the 20th century brought new ways to help people get over diseases. They worked very well. They made people healthier and allowed them to live longer. By the 1960s most people could expect to live to be at least 60.
By this time most people in developed countries had a very good life. Of course new inventions continued to be made. But man now had a desire(渴望) to explore again. The earth was known to man but the stars were not. Man began looking for ways to go into space. Russia made the first step. Then United States took a step. Since then other countries , including China and Japan, have made their own steps into space.
In 1969 man took his biggest step away from earth. Americans first walked on the moon. This is certainly just a beginning, though. New inventions will some day allow us to do things we have never yet dreamed of.
【小题1】 This passage talks mainly about         .
A.why cars were very important
B.when light was invented
C.how inventions affect people’s daily life
D.which country made the first step into space
【小题2】According to the passage man didn’t have a desire to explore a lot         .
A.at the beginning of 1800sB.in the 1960s
C.since the 1900sD.from the 1800s to 1960s
【小题3】In the 1800s, people began to work in order to make      
A.explorationsB.their life betterC.discoveries D.a trip to space
【小题4】 Nylon came out of five years later than        .
A.radioB.cameraC.jet planesD.movies
【小题5】People can live longer lives because        that help cure diseases have worked very well.
A.doctorsB.new waysC.medicinesD.new hospitals

There have been many great inventions or things that changed the way we live. The first great invention was the one that is still very important today——the wheel. This made it easier to carry heavy things and to travel long distance.
For hundreds of years after that there were few inventions that had as much effect as the wheel . Then in the early 1800s the world started to change. There was little unknown land left in the world. People didn’t have to explore much any more. They began to work instead to make life better.
In the second half of the 19th century many great inventions were made. Among them were the camera, the light and the radio. These all play a big part in our daily life today.
The first part of the 20th century saw more great inventions. The helicopter in 1909, movies with sound in 1926, the computer in 1928, jet planes in 1930. This was also a time when a new material was first made. Nylon came out in 1935. It changed the kind of clothes people wore.
The middle part of the 20th century brought new ways to help people get over diseases. They worked very well. They made people healthier and allowed them to live longer. By the 1960s most people could expect to live to be at least 60.
By this time most people in developed countries had a very good life. Of course new inventions continued to be made. But man now had a desire(渴望) to explore again. The earth was known to man but the stars were not. Man began looking for ways to go into space. Russia made the first step. Then United States took a step. Since then other countries , including China and Japan, have made their own steps into space.
In 1969 man took his biggest step away from earth. Americans first walked on the moon. This is certainly just a beginning, though. New inventions will some day allow us to do things we have never yet dreamed of.
【小题1】This passage talks mainly about _______________ .

A.why cars were very important
B.when light was invented
C.how inventions affect people’s daily life
D.which country made the first step into space
【小题2】According to the passage man didn’t have a desire to explore a lot ___________.
A.at the beginning of 1800s
B.in the 1960s
C.since the 1900s
D.from the 1800s to 1960s
【小题3】Nylon came out five years later than____________ .
A.radioB.cameraC.jet planesD.movies
【小题4】People can live longer lives because ________ that help cure diseases have worked very well.
A.doctorsB.new ways
C.medicinesD.new hospitals

 

Imagine the situation. You are driving along a desert or on a mountain. You have no idea where you are. You passed the last house two hours ago. Then your car breaks down. It is night and it is cold. You have no mobile phone. What do you do? Well, next time take a GPS with you. This invention may be able to help you. It is a device (装置) which uses satellites (卫星) to find the user’s position (位置). It can find your position to within 20 metres. A GPS cannot start your car, but at least you will know where you are.

GPS, which means Global Positioning System, is a small radio receiver. It looks like a mobile phone. It is sometimes put into a watch or a telephone. We also find GPS devices in cars, planes, or boats. Some of these devices have electronic maps, so you know where you are. For example, in a city they can tell you the name of the street.

There are three parts to the Global Positioning System. The first part is the receiver. You can hold it in your hand, or have it fixed into your car, plane, etc. The second part is a group of satellites orbiting(环绕运行) the Earth. The receiver contacts at least four of the satellites and calculates its position. The third part of the system is a network of ground stations. They are all over the world. They control the satellites and make sure they are working well.

Some people think that in the future the GPS will be as common as the mobile. They are becoming cheaper and more and more accurate. Also there will be new uses for the GPS. Perhaps they will become like watches. Everyone will have one and you will never be lost anywhere.

1.GPS can help you find your position, can’t it?

2.What does a GPS look like?

3.How many things are mentioned that GPS devices can be put into?

4.Why do some people think GPS devices will be popular in the future?

5.What is the use of ground stations?

6.What is the author’s purpose of writing this passage?

 

Imagine the situation. You are driving in a village or on a mountain. You have no idea where you are. You passed the last house two hours ago. Then your car doesn’t work. It is night and it is cold. You have no mobile phone. What do you do? Well, next time take a GPS with you. This invention may be able to help you. It is used for finding your position(位置) with the help of satellites (卫星). A GPS can’t start your car, but at least you will know where you are.

? GPS, which means Global Positioning System(全球定位系统), is a small radio receiver. It looks like a mobile phone. You can hold it in your hand, or put in your pocket. It is sometimes put into a watch or a telephone. We also find a GPS in cars, planes, or boats. Some of them have electronic maps, so you know where you are. For example, in a city they can tell you the name of the street.

? There are three parts to GPS. The first part is the receiver. You can hold it in your hand, or have it fixed into your car, plane, etc. The second part is a group of satellites going around the Earth. The receiver communicates with at least four of the satellites and calculates its position. The third part of the system is a network of ground stations all over the world. They control (控制) the satellites and make sure they are working well.

? Some people think that in the future the GPS will be as common as the mobile. They are becoming better and cheaper. There are also new uses for the GPS. Perhaps they will become like watches. Everyone will have one and you will never be lost again.

1.According to the passage, with the help of the GPS, people __________.

A. can’t be lost in a new city

B. can’t find their way in different countries

C. can learn about the culture of an unknown place

D. can spend the least time getting to another place

2.We can learn from the passage that ____________.

A. there are three parts to the GPS

B. a GPS can’t be put into a watch

C. a GPS can help you start your car

D. the GPS are becoming more and more expensive

3.The underlined word “They ” in paragraph 3 means “____________”.

A. Receivers?????? B. GPS???????? C. Satellites?????? D. Ground stations

4.What can we infer(推断) from the passage?

A. All GPS devices have electronic maps.

B. People in many countries will use the GPS for free.

C. The receiver of the GPS communicates with at least five of the satellites.

D. The GPS will become more and more common in everyday life.

 

There have been many great inventions or things that changed the way we live. The first great invention was the one that is still very important today——the wheel. This made it easier to carry heavy things and to travel long distance.

For hundreds of years after that there were few inventions that as much effect as the wheel . Then in the early 1800s the world started to change. There was little unknown land left in the world. People didn’t have to explore much any more. They began to work instead to make life better.

In the second half of the 19th century many great inventions were made. Among them were the camera, the light and the radio. These all play a big part in our daily life today.

The first part of the 20th century saw more great inventions. The helicopter in 1909, movies with sound in 1926, the computer in 1928, jet planes in 1930. This was also a time when a new material was first made. Nylon came out in 1935. It changed the kind of clothes people wore.

The middle part of the 20th century brought new ways to help people get over diseases. They worked very well. They made people healthier and allowed them to live longer. By the 1960s most people could expect to live to be at least 60.

By this time most people in developed countries had a very good life. Of course new inventions continued to be made. But man now had a desire(渴望) to explore again. The earth was known to man but the stars were not. Man began looking for ways to go into space. Russia made the first step. Then United States took a step. Since then other countries , including China and Japan, have made their own steps into space.

In 1969 man took his biggest step away from earth. Americans first walked on the moon. This is certainly just a beginning, though. New inventions will some day allow us to do things we have never yet dreamed of.

1. This passage talks mainly about         .

   A. why cars were very important

   B. when light was invented

   C. how inventions affect people’s daily life

   D. which country made the first step into space

2.According to the passage man didn’t have a desire to explore a lot         .

   A. at the beginning of 1800s             B. in the 1960s 

   C. since the 1900s                     D. from the 1800s to 1960s

3.In the 1800s, people began to work in order to make      

   A. explorations    B. their life better     C. discoveries      D. a trip to space

4. Nylon came out of five years later than        .

   A. radio          B. camera           C. jet planes          D. movies

5.People can live longer lives because        that help cure diseases have worked very well.

   A. doctors        B. new ways         C. medicines       D. new hospitals

 

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