The main purpose of writing this text is to . A. announce a business agreement B. shar——青夏教育精英家教网—

摘要： The main purpose of writing this text is to . A. announce a business agreement B. share information about flat tire changing C. introduce the advantages of a new tire D. introduce a new product-Quick-wheel (B) 科技发展了,但孩子的玩具历经千百年而变化不大,你知道其中的原由吗? There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do. In the ancient world, as is today, most boys play with some kinds of toys and most girls with another. In societies where social roles are strictly determined, boys pattern their play after the activities of their fathers and girls after the tasks of their mothers. This is true because boys and girls are being prepared, even in play, to step into the roles and responsibilities of the adult world. What is remarkable about the history of toys is not so much how they changed over the centuries but how much they have remained the same. It is the universality of toys about their development in all parts of the world and their continuing to the present that is amazing. In Egypt, the Americas, China, Japan and among the Arctic peoples, generally the same kinds of toys appeared. Nearly every civilization had dolls, little weapons, toy soldiers, tiny animals and vehicles. Because toys can be generally regarded as a kind of art form, they have not been subject to technological progress that characterizes inventions for adult use. The progress from the wheel to the oxcart to the automobile is a direct line of advancement. The progress from a rattle used by a baby in 3,000 BC to one used by an infant today, however, is not characterized by inventiveness. Each rattle is the product of the artistic tastes of the times and subject to the limitations of materials then ready for use.

网址：http://m.1010jiajiao.com/timu3_id_3134965[举报]

When one of your car tires goes flat, there are two things you can do, you can complain and change it or, if you don't have a spare, stand helplessly beside the road and hope someone comes to your rescue. Now comes a third choice, called Quick wheel. It is designed to get disabled motorists rolling again as quickly as possible.

Quick wheel is basically a tiny emergency trailer-complete with three tough little wheels of its own-that supports the flat tire and enables the motorist to drive to a service station without losing much time or expending much energy. The product is made in the Netherlands but is owned and marketed by a US company, Quick wheel Inc. of Greenwich, Connecticut. According to the firm's president, Robert Bockweg, the product meets each of the major worries that customers relate with flat tires: safety, lost time and physical labor.

To use it, motorists simply unfold the product to its fully extended position, set it in front of the disabled tire, drive the car onto the Quick wheel's ramp(斜板) and fix a special safety strap over the tire. The tire is then locked, or cradled, in Quick wheel's metal frame. Its three wheels do the rest of the work. According to Quick wheel Inc, its product can be driven "for miles" at the speed of up to 45 miles per hour "without any noticeable change in the vehicle's braking (车辆刹车) or steering operation". The company also says that it can be used on just about any type of car, jeep, mini-van or trailer (拖车).

Bockweg says that Quickwheel will be sold first in the United States, at a price of $150. Sales agreements now being talked over should make the product ready for use in Japan, Canada and Western Europe in the near future. (words: 314 ; time :5ms)

1. What does the underlined phrase "disabled motorists" (Paragraph 1) probably mean?

A. Motorists who can't walk. 　 B. Motorists who have disabilities.

C. Drivers who can't drive on because of a flat tire. D. Drivers who are hurt in an accident.

2. According to the information in the passage, Quickwheel ________ .

A. can be used to replace a flat tire 　

B. provides a kind of support to the flattire for a short time

C. is able to move as quickly as a wheel

D. is as changeable and lasting as an ordinary wheel

3. It is suggested but not clearly stated that Quickwheel ________ .

A. can't be used in place of a tire overlong distances

B. will be used first in the US

C. can be folded and unfolded

D. performs well over various kinds of road surfaces

4. The main purpose of writing this text is to ________ .

A. announce a business agreement

B. share information about flat tire changing

C. introduce the advantages of a new tire

D. introduce a new product-Quick-wheel

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