B

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 (挨打) 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. 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.”

(    )56.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.

(    )57.The new technology allows the robot to _________.

A. do house work for humans

B. keep working after being damaged

C. remember a lot of information

D. tell people where it is

(    )58.The underlined word “them” in Paragraph 5 refers to ________.

A. sensors         B. robots

C. arms and legs       D. scientists

(    )59.How do the sensors in the robot work?

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

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

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

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

(    )60. The passage is probably from_____________.

A. a newspaper        B. an advertisement

C. a tour guide        D. an application

C

In order to know a foreign language thoroughly, four things are necessary. Firstly, we must be able to understand the language when we hear it spoken. Secondly, we must be able to speak it ourselves, correctly, with confidence and without hesitation. Thirdly, we must be able to read the language and fourthly, we must be able to write it. We must be able to compose(组成)sentences that are grammatically correct. We must know how to arrange sentences in paragraphs, so as to write a good letter or composition.

There is no easy way to succeed in language learning. A good memory is of great help, but it is not enough simply to memorize rules from a grammar book. It is not much use learning by heart long lists of words and their meaning. We learn words not by ourselves, but in sentences. We must learn by using the language. “Learn through use” is a good piece of advice for those who are studying a new language. Practice is very important. We must practice speaking and writing the language whenever we can.

(     )61.The most important things to learn a foreign language are_______.

A. understanding and speaking

B. memorizing and listening

C. writing and understanding

D. hearing, speaking, reading and writing

(     )62.Someone hears and writes English very well, but he speaks it very badly. This is    because________.

A. he doesn't have a good memory

B. he often hesitates to practice speaking it

C. he always remember lists of words and their meanings

D. he doesn't understand the language when he hears it spoken

(     )63. One can never learn a foreign language well only by_______.

A. doing more exercises

B. studying the dictionary

C. learning through use

D. using the language

(     )64. Which of the following is the most important in learning a foreign language?

A good memory.  B. Speaking.       C. Practice.       D. Writing.

(     )65. "Learn through use" means_______.

A. we use a language in order to learn it

B. we learn a foreign language in order to use it

C. we can learn a language before using it

D. we can learn a language well while we are using it