1. In 1999, the virus made American scientists’ information ________

A.　　 all lost

B.　　　 partly lost

C.　　　 none lost

D.　　 mostly lost

5.According to the passage, what should be given to cloning’s inventors? _____________

A.　　 Strict control

B.　　　 Great thanks

C.　　　 Care

D.　　 Caution

Passage 59　 “I love you” virus

On May 21, 1999, some American scientists were working at the computers to look for information they needed. Suddenly they saw a lot of very bright red spots crossing the computers’ screens. At the same time the computers were working much slower. To find out what was happening they stopped their work to check some parts of the computers. To their horror, they found out that most of their stored information was got rid of by computer virus! Obviously all these computers had been infected by computer virus.

It is said that the computer virus was made by two or three Philippine young men fond of playing tricks. They all had excellent education. They created the virus just to show their intelligence. The kind of computer virus is named “I Love You” Virus. This virus can hide in computers for long. When the time comes it will attack the computers by lowering the important functions, damaging their normal programs or even getting rid of a great deal of information which operators of the computers often use or store; even worse, it still can reproduce itself in great quantities within a short time.

We come to know that “I Love You” Virus often attacks computers on Mondays and that it is spreading to many computers in the world. Among the countries that suffered computer viruses last year are Britain, Australia, Switzerland and the US. Those who made the computer viruses have been found out slowly and carefully. But till now, how to get rid of the terrible viruses remains a problem.

4.How should we look upon cloning? _______

A.　　 Cloning is terrible

B.　　　 Cloning must be moved with caution, care.

C.　　　 Cloning will cause troubles.

D.　　 Cloning is a disease

3.Some people claim attempting to use these cloning techniques to actually clone a human being is __________

A.　　 untested

B.　　　 unsafe

C.　　　 morally unacceptable

D.　　 above of all

2.Who is Dolly? ______

A.　　 A British scientist

B.　　　 A single cell

C.　　　 An adult sleep

D.　　 A lamb cloned

1.What are changing the way we live and work? ________

A.　　 Cloning.

B.　　　 Life saving

C.　　　 Science and technology

D.　　 The mysteries of life

2.　　　 The main task of the MER is _____________.

A.　　 to take some pictures of Mars.

B.　　　 To test the robots.

C.　　　 To seek out any signs of water.

D.　　 To dig holes in Mars.

Passage 58　　 Cloning

As we approach the 21st century, it is clearer than ever that science and technology are changing the way we live and work. The breakthroughs in bioengineering science are helping to reveal the mysteries of life, holding out new hope for lifesaving cures to some of our most dreaded diseases.

In 1997, the great news shocked the whole world that the British scientists created a lamb, named Dolly from a single cell. Miraculously, the cell had been taken from the udder of an adult sheep, which marks the first time an adult animal had been successfully cloned.

But it soon caused worldwide concern over its ethical, social, and scientific implications. Cloning is especially controversial because it raises the prospect of “making” humans genetically identical to an existing man or woman. Some people claim attempting to use these cloning techniques to actually clone a human being is untested and unsafe and morally unacceptable.

How to look upon this new technique? When it comes to a discovery like cloning, we must move with caution, care and deep concern about the impact of our actions. First, cloning should be greatly esteemed and great thanks should be given to its inventors. Meanwhile, great efforts should be made to place this technique under strict control. Especially we should adopt a document against human cloning since past experience tells us a new invention may cause troubles if it is misused.

1.　　　 The first scientists designed to visit Mars this summer are going to be ______.

A.　　 two scientists of NASA

B.　　　 a pair of twins

C.　　　 two pilots.

D.　　 Two metal robots

3. The passage's main idea is _______. A. how the film "Shrek" came into being B. how "Shrek" was brought to life for the audience C. the work of animators D. how hard it is to make an animated film

Passage 57　 Robots look for life

The first scientists to visit Mars are not going to be flesh and blood humans, but metal robots. 　　 This summer, NASA (美国国家宇航局) plans to start the Mars Exploration Rovers mission (MER, "火星漫游者探险任务"), sending a pair of robotic twins into space. If all goes well, the six-wheeled rovers will be rolling around the Red Planet sometime in January 2004. 　　 NASA first sent a rover to Mars in 1997. It proved that the technology could get to, and land on, the planet. This time, the MER robot will act as a scientist and seek out any signs of water - past or present. 　　 Both MER robots will be delivered into space by a rocket. Wrapped in a landing shell, an airbag (气囊) will protect them when the shell hits the planet's surface. Once it lands, the shell will open, and the rovers will come out. 　　 "What we tried to do was take everything you'd find in a field scientist's bag on earth and make a robotic field scientist for Mars," said Steven Squyres, a NASA scientist. 　　 Each carries nine cameras, which will send pictures of Mars back down to Earth. One camera sits on the tip of each robot's arm. This arm is the same size as that of a human adult. Every time the robot moves, the cameras feed images to its computer. The computer then decides whether an obstacle can be dealt with or should be avoided. And if it gets in a real jam, the rover phones home for instructions. 　　 "The rule is: 'Don't go over anything larger than your wheel'," said Squyres. The wheels on each of the 180kg rovers stand at about 25cm tall.

And they move slowly - around 5cm per second. The MER robots are able to dig, in any rock, holes about 45mm wide and 5mm deep. This will allow researchers to study material that has been untouched by the extreme Martian (火星的) weather. 　　 During Mars' nights, MER robots can "sleep" for up to 18 hours. But sometimes they'll have to work late and conduct experiments in the dark. They will roll on Mars for 90 days.

Water on Mars?

In June 2000, NASA announced its discovery of water on Mars. Scientists believe that vast stores of water still exist below the surface. If the discovery is confirmed (证实), it would be a big step for NASA. Without water there can, and never could have been, any life.

2. The word "one" in the sentence in the last paragraph (Each one has 4,320 frames and six people working on it) refers to ______. A. animator B. animation C. sequence D. movie