In some science fiction movies, evil robots refuse to die, no matter how hard people fight back.

Now science fiction has become science fact. For the first time, scientists have made a robot that can take a beating and keep on going. Scientists from Cornell University made the robot, which looks like a spider with four legs.

Until now, even the most advanced (先进的) robot was almost certain to break down when it was damaged (毁坏). That is because its computer inside simply doesn’t know how to make the machine work after its shape has changed. 

To deal with this problem, the scientists put eight motors (发动机) and two sensors (传感器) that read how the machine is working. They all give signals to the machine’s software. Using this information, the computer can then figure out the machine’s shape at any moment.

The new technology is a big advance in robot-making, scientists say, and it’s far from scary. It may someday help scientists create better artificial (假的) arms and legs and give new freedom to people who lose them. It might also help scientists understand how people and animals figure out their own sense of place in space.

“It has been difficult to design robots that can work well when the environment changes or when it’s damaged,” says Olaf Sporns of Indiana University in US. “With this work, we are nearer to solving this problem.”

1.Why do robots easily break down when they are damaged?

A．They cannot repair themselves.

B．The computer has changed a lot.

C．They have no computers inside.

D．The computer cannot work if the robot changes.

2.The new technology(技术) allows the robot to        .

A．keep working after being damaged

B．tell people where it is

C．do house work for humans

D．remember a lot of information

3.The underlined word “them” in Paragraph 5 refers to       .

A．sensors           B．robots            C．scientists          D．arms and legs

4.How do the sensors in the robot work?

A．They can replace the computer when it’s broken.

B．They help the computer learn the robot’s condition.

C．They can find out where the damage comes from.

D．They can send signals to the person who uses the robot.

The teacher stood before his class of 30 students and was going to hand out the final exam papers．“I know how hard you have all worked to get ready for this test．” he said．“And because I know you are all able to understand these questions．I am ready to offer a B to anyone who would prefer not to take the test．’’

    A number of students jumped up to thank the teacher and left the classroom．The teacher looked at the rest students and said．“Does anyone else want to get a B? This is your last chance．”Two more students decided to go．Seven students stayed．The teacher then handed out the papers．There were only three sentences on the paper： Congratulations! You have received an A in this class．Keep believing in yourself．

    I never had a teacher who gave a test like that．but I think that it is a test that any teacher could and should give．Students who do not have confidence in what they have learned are B students at most．

    The same is true for students in real life．The A students are those who believe in what they are doing because they have learned from both successes and failures．They have learned life’ s lessons, whether from school education or from events in their lives，and have become better people．Scientists say that by the age of eight，80% of what we believe about ourselves has already been formed．You are a big kid now and you realize that you have some limits(局限)．However，there is nothing you can’t do or leant to be．Sir Edmund Hillary, the first person to reach the top of Mount Qomolangma (珠穆朗玛峰)said，“We do not conquer the mountain．but ourselves．”

1.Some students left the classroom because_____

A．they were happy with the grade the teacher would give them

B．they were allowed to take another easier exam later on

C．they knew the teacher didn’t like them to take the test

D．they thought the exam was so easy that they don’t need to have a try

2.The teacher gave the rest students an A because______

A．they answered all the questions in the exam correctly

B．they didn’t believe themselves

C．they believed themselves in what they had learned

D．they had been working hard for each exam

3.The underlined word “conquer’’ means ______ in the passage.

    A．发现    B．控制    C．探索    D．征服

4.What does the writer want to tell us in the passage?

A．He wants us to know what our limits are．

B．He wants us to learn to believe in ourselves．   

C．He wants us to receive school education．

D．He wants us to1earn from B students．

单词拼写。（共10小题，计10分）

根据下列句子及所给单词的首字母，写出各单词的完全形式（每空限填一词）。

1. E_________ more vegetables is good for our health.

2.Because of his i_________, he didn’t come to school yesterday.

3.A_________ he is very old, he still exercises every day.

4. There are many d_________ between the pictures.

5. B_________ in yourself. You can do it very well.

6. The station is five k_________ away from my house.

7. It’s 30 m_________ walk for them to go to school.

8. How much we are paid d_________ on how hard we work.

9.The foreigner, Mr Smith, takes a great i_________ in Chinese culture.

10. Have you read the i_________ on the label (标签) carefully?

从方框中选择正确选项。完成短文．并将其字母序号写在短文后面的空格内。(方框中有两个选项是多余的)