Could there be life on Mars? You probably know a lot about the city you live in. You may even know some interesting facts about our earth. But how much do you know about M , the planet where many think there may be l ? For many years, people have studied Mars. They have sent instruments and r to the red planet. Some of them succeeded, but most f . The first spacecraft , Mariner 4 from America, got a c look at Mars on November 28, 1964. Mariner 4 showed Mars had a red surface with many big h . There were also signs that there had been w on Mars. Of course, scientists wouldn’t miss the opportunityto send spacecraft to the red planet when it is so close to us. NASA, National Aeronautics and Space Administration , sent two robots to Mars in June and July. In January 2004, they will t to Mars at some 12 000 miles per hour. The two robots will then begin a 3 month s to look for evidence of water and life from Mars. One day, humans will travel to Mars to have a even closer look at the earth’s red n . Maybe it could be you! 查看更多

 

题目列表(包括答案和解析)


Soon computers and other machines will be able to remember you by looking at your eyes! The program works because everyone’s eyes are different. So in the future you won’t have to remember a number when you want to use a machine or take money out of a bank. You’ll just have to look at the machine and it will be able to tell who you are.
The eye-recognition(眼睛识别 program has already been tested in shops and banks in the USA, Britain, Spain, Italy and Turkey. Soon this technology(技术) will take the place of all other ways of finding out who people are.
However, scientists are also working on other systems. Machines will soon be able to know you from the shape of your face or hand or even your smell! We already have machines that can tell who you are from your voice or the mark made by your finger.
Eye-recognition is better than other kinds because your eyes don’t change as you get older, and don’t get dirty like hands or fingers, and even twins have different eyes. So the eye-recognition program can be up to 94% correct, depending on how good the technology is. However, some other programs may only be 51% correct at present. In Britain, it was found that 91% of people who had tried it said that they liked the idea of eye-recognition.
In the future your computer will be looking you in the eye. So smile!
【小题1】Where has the eye-recognition program already been tested in a few countries? In_______.

A.shops and banksB.shops and schools
C.banks and schoolsD.schools and hospitals
【小题2】 How does the eye-recognition program work?
A.You look at the machine and type a number.
B.You need to speak and then look.
C.The machine looks at your face.
D.You look at the machine.
【小题3】 We already have machines that can tell who you are from ________.
A.your eyes or your smell
B.your voice or the mark made by your finger
C.your face or your voice
D.your face or your hand
【小题4】 Which of the following doesn’t belong to the advantages of the eye-recognition program?
A.Your eyes don’t change as you get older.
B.Eyes don’t get dirty like hands or fingers.
C.Everyone’s eyes are different, even twins have different eyes.
D.We can’t see anything without eyes.
【小题5】 What problem could there be with the eye-recognition program?
A.Some eyes are the same.B.Eyes can change.
C.It is not always correct.D.Eyes can get dirty like hands.

查看答案和解析>>

阅读理解

Soon computers and other machines will be able to remember you by looking at your eyes! The programme works because everyone’s eyes are different. So in the future you won’t have to remember a number when you want to use a machine or take money out of a bank. You’ll just have to look at the machine and it will be able to tell who you are. The eye-recognition(眼睛识别) programme is tested in shops and banks in the USA, Britain and Italy.

Scientists are working on other systems, such as knowing you from the shape of your face or hand or even your smell! And machines can already tell who you are from your voice or your fingerprint(指纹). But eye-recognition will replace other ways of finding out who you are. It is better, because your eyes don’t change as you get older, or get dirty like hands or fingers. And even twins have different eyes, so the programme can be up to 94% correct, depending on how good the technology is. In Britain, it was found that 91% of people said that they liked the idea of eye-recognition.

根据短文内容,选择正确答案。

1.Where has the programme for remembering eyes been tested?

A.Banks and factories.

B.Banks and shops.

C.Schools and computers.

D.Schools and shops.

2. How does the eye-recognition programme work?

A.You look at the machine and type a number.

B.You need to speak and then look.

C.The machine looks at your face.

D.You look at the machine.

3. Which recognition technology is already in use?

A.Remembering eyes or smell.

B.Remembering fingerprints or voices.

C.Remembering faces or voices.

D.Remembering hands or faces.

4.What problems could there be with the eye-recognition programme?

A.Some eyes are the same.

B.Eyes can change.

C.It is not always correct.

D.Eyes can get dirty.

5.What is the advantage of the eye-recognition programme?

A.You needn’t remember a number.

B.You needn’t take money with you.

C.You don’t need to look at the machine.

D.People think it’s interesting.

 

查看答案和解析>>

B) 根据短文内容及首字母提示,填写所缺单词。
One cold midnight after the birthday party of Tom’s, my husband Jack and I were driving home w  【小题1】   suddenly our car stopped. “We’ve covered half the way.” I said. “There must be something wrong with the car. I can’t start it again,” said Jack.
What a car! We got out to look around f  【小题2】   help, but could there be any person at s【小题3】   an hour? It was dark and nothing could be done to make it go. We h  【小题4】  to walk home. We knew it would take us 2 hours to get home on foot, and we were so tired. But what else could take us home? It was so c  【小题5】   in the car. At once we began to walk home.
We were at the door at about 2:30 when I r  【小题6】   that I had left the key in the car! How  s   【小题7】   it is! “Break the window and climb in.” said Jack. He picked up a stone, broke the window and was ready to climb when someone from behind caught Jack by the a  【小题8】  . It was a policeman!
“What are you going to do, man?” he asked. “Come with me to the police s 【小题9】  , you two!”
I told him the whole story. At last he understood what I had said and I was a  【小题10】  to get in.
It was three o’clock in the morning!

查看答案和解析>>

One afternoon, Bob and Jane were walking along a quiet street when they heard a big noise from the street corner. They ran there and found that a small car had knocked into the side of a truck. Both the car driver and the truck driver were hurt.

“Bob,” said Jane, “run back down the road to Mrs Day’s house. Ask her to call the police and the ambulance(救护车). Hurry up. I’ll stay here.”

Bob went off as fast as he could. There was nothing Jane could do but wait. She knew that when people were hurt in an accident, they shouldn’t be moved.

It wasn’t long before the police car and the ambulance arrived. The policemen got the car door open and moved the man out. Then they got the truck driver out. Luckily, the men weren’t badly hurt, but they were both taken to hospital. The policemen thanked Bob and Jane.” You were very good to act so quickly when you saw the accident. Thank you for all your help.”

根据短文内容,判断正误。正确的填(A),错误的填(B)。

1.The accident happened in a quiet street one afternoon.

2.Mrs Day and the policemen heard the noise.

3.Both of the drivers were hurt in the accident.

4.Jane asked Bob to call the police.

5.Jane had got the drivers out before the policemen arrived.

 

查看答案和解析>>

Australia is the largest island in the world. It is a little smaller than China. 1t is in the south of the earth. Australia is big, but its population is small. The population of Australia is nearly as large as that of Shanghai.

Enough laws (法律)have been made to fight against pollution. The cities in Australia have got little air or water pollution. The sky is blue and the water is clean. You can clearly see fish swimming in the rivers. Plants grow very well.

Last month we visited Perth, the biggest city in Western Australia, and went to a wild flower exhibition (展览). There we saw a large number of wild flowers we had never seen before. We had a wonderful time. Perth is famous for its beautiful wild flowers. In spring every year Perth has the wild flower exhibition. After visiting Perth we spent a day in the countryside. We sat down and had a rest near a path(小路) at the foot of a hill. It was quiet and we enjoyed ourselves. Suddenly we heard bells ringing at the top of the hill. What we saw made us pick up all our things and run back to the car as quickly as we could. There were about three hundred sheep coming towards us down the path.

Australia is well-known for its sheep and kangaroos. After a short drive from any town, you will find yourself in the middle of white sheep. Sheep, sheep, everywhere are sheep.

1.Australia is ________.

A.the largest country in the world            B.larger than China

C.as large as Shanghai                      D.not as large as China.

2.Enough laws have been made to ________.

A.increase the population                  B.grow more plants

C.fight against pollution                    D.show wild flowers

3.Perth is ________.

A.the capital of Australia                    B.in the west of Australia

C.in the east of Australia                    D.the biggest city in Australia

4.In Perth you may visit a wild flower in ________.

A.October          B.January           C.May              D.July

5.Which of the following sentences is true?

A.All the big cities in Australia are seriously polluted.

B.Australia is well-known for its sheep, kangaroos and large population.

C.We ran back to the car because we were in the middle of white sheep.

D.If you go to the town in Australia, you will see a large number of white sheep.

 

查看答案和解析>>


同步练习册答案