A lift is very useful. It looks like a small room. It goes up and down all day. Sometimes a worker stands in the lift. He or she operates(操作) it up and down. In modern lifts there's no worker. People walk in. They know what floor they want to go. They push a button(按钮)and the lift goes to that floor. It's very fast and easy.

Lifts are very important to us. Why? Think about a tall building. Maybe it has twenty floors. Maybe it has fifty or more. Who can walk up all the stairs(楼梯)?Maybe people can climb them once. Can someone climb thirty floors to an office every day? Can small children walk up to their rooms on the twenty-four floor? Can their mothers or fathers carry food up to all those stairs? Of course not. We can have very high buildings because we have lifts. We could not have all the beautiful tall buildings without lifts. Because it is too tired for people to climb the stairs every day.

根据短文的意思回答问题或完成句子。

1.What is a lift like? ____________________________

2.What does a worker do when he or she stand in the lift? _____________

3.Can small children walk up to their room on the twenty-four floor? __________

4.Why do we have many high buildings? ____________________________________

5.Can you give a title for the passage? ______________

1.It looks like a small room . 2.He or she operates it up and down. 3.No, they can’t. 4.We can have very high buildings because we have lifts. 5.lift. 【解析】试题分析:这篇短文主要讲述了什么是电梯,电梯对我们的重要性以...

French doctors and American scientists have reported doing an operation in which the doctor was outside the operating room. This kind of operation is known as robotic operation.

Doctor Marescaux did the operation in an office in New York City last month, while a sixty-eight-year-old woman patient was in a hospital in Strasbourg, France.

A doctor in Strasbourg got the patient ready. He placed medical tools and a small video camera in her stomach area. Doctor Marescaux in New York watched the patient on a video screen. Then he used the computer to send messages to the robot machine. The robot moved the tools that cut the woman’s gallbladder(胆囊)away. The woman got well soon after the operation and left the hospital two days later.

Experts say the main problem with such a robotic operation is based on high-speed telecommunications between the doctor and the robot. Technology must be able to send a doctor’s order to a robot to move the tools quickly.

Experts also say a successful robotic operation will improve an operation. For example, the robot can make much smaller movements than a person can. A robot machine can turn tools in ways that a doctor’s hand cannot.

Doctors say such a robotic operation will make possible safer and better operations in the future. They say it will improve doctor training. It will also mean that doctors could do an operation on people in dangerous places far away. And it could mean that people could have operations done by top doctors without having to travel to the city where doctors work.

1.“Robotic operation” means “____”.

A. a special kind of robot invented by doctors

B. an operation done far away

C. an operation done with the help of a robot

D. something done to mend a robot

2.We use the robot in the operation because _____.

A. it can send messages at a high speed

B. even a top doctor can’t do the operation himself

C. it can make the operation safer and better

D. operations can be done without any doctors

3.If we want to use the robot in the operation, we must solve the problem of _____.

A. top doctors B. smaller movements

C. doctor training D. high-speed telecommunications

4.If the smaller movement can’t be done by doctors in the operation, we may use _______ to solve it.

A. more tools B. a robot machine

C. a video camera D. telecommunications

5.Which of the following is NOT true?

A. Robotic operation is good for doctor training.

B. Robotic operation has been used in the USA.

C. Experts speak highly of robotic operation.

D. The robot is used to watch the patient clearly.

1.C 2.C 3.D 4.B 5.D 【解析】试题分析:这篇短文讲的是有关机器人手术这一高科技技术在医学方面的应用的情况,这种手术可完成医生自身很难完成的一些手术。 1. 2. 3. 4. 5.
 0  127203  127211  127217  127221  127227  127229  127233  127239  127241  127247  127253  127257  127259  127263  127269  127271  127277  127281  127283  127287  127289  127293  127295  127297  127298  127299  127301  127302  127303  127305  127307  127311  127313  127317  127319  127323  127329  127331  127337  127341  127343  127347  127353  127359  127361  127367  127371  127373  127379  127383  127389  127397  159627 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网