No virtual work does exist in the reality.

What does "virtual company"(Line 1—2, Para. 7) mean？

A．A company which is sensitive to the changes at the market.

B．A company hiring people from different countries.

C．A company where employees work in different places through the Internet.

D．A cross-national company with many subcompanies.

ss of 33 students taking his course in statistics into two groups. The “traditional” group was taught in a classroom every Saturday morning for 14 weeks. The “on-line” group came together only for examinations at the start and end of the course. None of the students in either group knew they were part of an experiment. The online group used electronic mail to cooperate in groups of three, assigned casually. They also took part in weekly discussions held on the Internet and weekly “live” online talk session regulated by Schutte. At the end of the course, the on-line students scored 20 per cent higher in their exam. A subsequent questionnaire indicated that they had spent more time on their coursework, and that they understood the material better. Schutte attributes the virtual students’ success to their eagerness to discuss their work on-line. The traditional students tended to work in isolation. “I would say the cooperation resulted from being afraid of having no face-to-face interaction with a professor,” Schutte says. He does not think that the on-line students became more enthusiastic simply because of the novelty of working with the Internet, “most of that gave way to discouragement due to the technology problems.” “We believe you can’t dispose of the help of a teacher, at least in schools,” says Jeff Morgan, director of communications technologies at the UK National Council for Educational Technology, “though the results are perfectly reasonable for university-age students.”

(1)Schutte’s experiment focuses on the use of on-line education _____

A、as a substitute for conventional teaching

B、in support of conventional teaching

C、as an improvement of conventional teaching

D、as a part of conventional teaching

(2)On-line education is different from the traditional one in that _____

A、it does not need any teachers

B、students work alone

C、there is much cooperation among students

D、exams are taken on-line

(3)The on-line group do better than the traditional group because _____

A、they work together through the Internet

B、they are interested in the Internet

C、they want to do better than the “traditional” group

D、they don’t like the traditional teaching

(4)The result of the study shows that _____

A、students can learn without teachers

B、learning at home is better than attending courses in the classroom

C、working on technology problems creates enthusiasm for students

D、advanced technology can enhance learning

(5)Jeff Morgan’s attitude toward the on-line teaching is _____

A、pessimistic

B、positive

C、neutral

D、critical

A、Reciprocal theorem

B、Principle of virtual work

C、Superposition theory

D、Basic principles of force method

nization does not physically exist, but enabled by software to exist.()

.

A．cause less pain on the wounded

B．allow the patient to recover more quickly

C．will make human surgeons' work less tedious

D．are done by robot surgeons with greater precision

education？

A．Students with mental illness.

B．Students with behavioral disorders.

C．Students with physical handicaps.

D．Students with developmental problems.

Virtual reality operations are an improvement on conventional surgery in that they

A．cause less pain to the wounded.

B．allow the patient to recover more quickly.

C．will make human surgeons' work less tedious.

D．are done by robot surgeons with greater precision.

chines of a type never seen before.

It looks as if it came straight from the set of Star Wars. It has four-wheel drive and rises above rocky surfaces. It lowers and raises its nose when going up and down hills. And when it comes to a river, it turns amphibious: two hydrojets power it along by blasting water under its body. There is room for two passengers and a driver, who sit inside a glass bubble operating electronic, aircraft-type controls. A vehicle so daring on land and water needs windscreen wipers--but it doesn't have any. Water molecules are disintegrated on the screen's surface by ultrasonic sensors.

This unusual vehicle is the Racoon. It is an invention not of Hollywood but of Renault, a rather conservative French state-owned carmaker, better known for its family hatchbacks. Renault built the Racoon to explore new freedoms for designers and engineers created by advances in materials and manufacturing processes. Renault is thinking about startlingly different cars; other producers have radical new ideas for trains, boats and aeroplanes.

The first of the new freedoms is in design. Powerful computer-aided design (CAD) systems can replace with a click of a computer mouse hours of laborious work done on thousands of drawing boards. So new products, no matter how complicated, can be developed much faster. For the first time, Boeing will not have to build a giant replica of its new airliner, the 777, to make sure all the bits fit together. Its CAD sys- tem will take care of that.

But Renault is taking CAD further. It claims the Racoon is the world's first vehicle to be designed within the digitized world of virtual reality. Complex programs were used to imitate the vehicle and the land that it was expected to cross. This allowed a team led by Patrick Le Qucment, Renault's industrial-design director, to "drive" it long before a prototype existed.

Renault is not alone in thinking that virtual reality will transform. automotive de- sign. In Detroit, Ford is also investigating its potential. Jack Telnac, the firm's bead of design, would like designers in different parts of the world to work more closely together, linked by computers. They would do more than style. cares. Virtual reality will allow engineers to peer inside the working parts of a vehicle. Designers will watch bearings move, oil flow, gears mesh and hydraulics pump. As these techniques catch on, even stranger vehicles are likely to come along.

Transforming these creations from virtual reality to actual reality will also become easier, especially with advances in materials. Firms that once bashed everything out of steel now find that new alloys of composite materials (which can be made from mixtures of plastic, resin, ceramics and metals, reinforced with fibers such as glass of carbon) are changing the rules of manufacturing. At the same time, old materials keep getting better, as their producers try to secure their place in the factory of the future. This competition is increasing the pace of development of all materials.

With composites, it is possible to build many different parts into a single component. Fiat, Italy's biggest car maker has worked out that it could reduce the number of components needed in one of its car bodies from 150 to 16 by using a composite shell rather than one made of steel. Aircraft and cars may increasingly be assembled as if they were plastic kits.

How does the Racoon cross water？

A．It swims,

B．It raises its nose.

C．It uses hydrojets.

D．It uses its four-wheel drive.

A、They can easily transcend the legal and cultural barriers of the assignment country.

B、They lack an understanding of how home-office politics influences decision making.

C、They work abroad in one country after another for the greater part of their career.

D、They manage operations in foreign countries but do not move there.

A、mock reality

B、virtual reality

C、remote reality

D、counter reality