题目内容

This “designer” salmon (鲑) grows to a marketable size in ________ natural salmons grow.


  1. A.
    the half time
  2. B.
    half the time
  3. C.
    the time half
  4. D.
    half time the
B
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Almost every machine with moving parts has wheels, yet no one knows exactly when the first wheel was invented or what it was used for. We do know, however, that they existed over 5,500 years ago in ancient Asia.
The oldest known transport wheel was discovered in 2002 in Slovenia. It is over 5,100 years old. Evidence suggests that wheels for transport didn’t become popular for a while, though. This could be because animals did a perfectly good job of carrying farming tools and humans around.
But it could also be because of a difficult situation. While wheels need to roll on smooth surfaces, roads with smooth surfaces weren’t going to be constructed until there was plenty of demand for them. Eventually, road surfaces did become smoother, but this difficult situation appeared again a few centuries later. There had been no important changes in wheel and vehicle design before the arrival of modem road design.
In the mid-1700s, a Frenchman came up with a new design of road—a base layer (层) of large stones covered with a thin layer of smaller stones. A Scotsman improved on this design in the 1820s and a strong, lasting road surface became a reality. At around the same lime, metal hubs (the central part of a wheel) came into being, followed by the pneumatic tyre(充气轮胎) in 1846. Alloy wheels were invented in 1967, sixty years after the appearance of tarmacked roads (柏油路). As wheel design took off, vehicles got faster and faster.
【小题1】What might explain why transport wheels didn’t become popular for some time?

A．Few knew how to use transport wheels.
B．Humans carried farming tools just as well.
C．Animals were a good means of transport.
D．The existence of transport wheels was not known.
【小题2】What do we know about road design from the passage?
A．It was easier than wheel design.
B．It improved after big changes in vehicle design.
C．It was promoted by fast-moving vehicles.
D．It provided conditions for wheel design to develop.
【小题3】How is the last paragraph mainly developed?
A．By giving examples.
B．By making comparisons.
C．By following time order.
D．By making classifications.
【小题4】What is the passage mainly about?
A．The beginning of road design.
B．The development of transport wheels.
C．The history of public transport.
D．The invention of fast-moving vehicles.

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并将答案写在本题下面的横线上。选项中有多余选项。
A:What’s your opinion about this design? 　【小题1】　
B:I have never seen a better one.　【小题2】　
A:Thanks.I was afraid that you wouldn’t like it.
B:Really?　【小题3】　
A:We will have to hire some famous models for the advertisement.
B:It may cost a lot.but it will really bring in more benefit for us.　【小题4】　
A:Who do you like better,the models from home or abroad?
B:I think models from home may be more popular among the young.They may bring better results.
A:That’s true.　【小题5】　 OK,let’s choose the best models now.

Almost every machine with moving parts has wheels，yet no one knows exactly when the first wheel was invented or what it was used for.We do know，however，that they existed over 5,500 years ago in ancient Asia.

The oldest known transport wheel was discovered in 2002 in Slovenia.It is over 5,100 years old.Evidence suggests that wheels for transport didn’t become popular for a while，though.This could be because animals did a perfectly good job of carrying farming tools and humans around.

But it could also be because of a difficult situation.While wheels need to roll on smooth surfaces，roads with smooth surfaces weren’t going to be constructed until there was plenty of demand for them.Eventually，road surfaces did become smoother，but this difficult situation appeared again a few centuries later.There had been no important changes in wheel and vehicle design before the arrival of modern road design.

In the mid?1700s，a Frenchman came up with a new design of road—a base layer(层) of large stones covered with a thin layer of smaller stones.A Scotsman improved on this design in the 1820s and a strong，lasting road surface became a reality.At around the same time，metal hubs (the central part of a wheel)came into being，followed by the pneumatic tyre(充气轮胎) in 1846.Alloy wheels were invented in 1967，sixty years after the appearance of tarmacked roads(柏油路)．As wheel design took off，vehicles got faster and faster.????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? (2013·重庆，C)

1.What might explain why transport wheels didn’t become popular for some time?

A．Few knew how to use transport wheels.

B．Humans carried farming tools just as well.

C．Animals were a good means of transport.

D．The existence of transport wheels was not known.

2. What do we know about road design from the passage?

A．It was easier than wheel design.

B．It improved after big changes in vehicle design.

C．It was promoted by fast?moving vehicles.

D．It provided conditions for wheel design to develop.

3. How is the last paragraph mainly developed?

A．By giving examples.

B．By making comparisons.

C．By following time order.

D．By making classifications.

4. What is the passage mainly about?

A．The beginning of road design.

B．The development of transport wheels.

C．The history of public transport.

D．The invention of fast?moving vehicles.

 

Almost every machine with moving parts has wheels, yet no one knows exactly when the first wheel was invented or what it was used for. We do know, however, that they existed over 5,500 years ago in ancient Asia.

The oldest known transport wheel was discovered in Slovenia. It is over 5,100 years old. Evidence suggests that wheels for transport didn’t become popular for a while, though. This could be because animals did a perfectly good job of carrying farming tools and humans around. But it could also be because of a difficult situation. While wheels need to roll on smooth surfaces, roads with smooth surfaces weren’t going to be constructed until there was plenty of demand for them. Eventually, road surfaces did become smoother, but this difficult situation appeared again a few centuries later. There had been no important changes in wheel and vehicle design before the arrival of modern road design.

In the mid-1700s, a Frenchman came up with a new design of road — a base layer (层) of large stones covered with a thin layer of smaller stones. A Scotsman improved on this design in the 1820s and a strong, lasting road surface became a reality. At around the same time, metal hubs (the central part of a wheel) came into being, followed by the pneumatic type (充气轮胎） in 1846.Alloy wheels were invented in 1967, sixty years after the appearance of tarmacked roads (柏油路). As wheel design took off, vehicles got faster and faster.

1.What might explain why transport wheels didn’t become popular for some time?

A. Few knew how to use transport wheels.

B. Humans carried farming tools just as well.

C. Animals were a good means of transport.

D. The existence of transport wheels was not known.

2.What do we know about road design from the passage?

A. It was easier than wheel design.

B. It improved after big changes in vehicle design.

C. It was promoted by fast-moving vehicles.

D. It provided conditions for wheel design to develop.

3.How is the last paragraph mainly developed?

A. By giving examples.                                                               B. By making comparisons.

C. By following time order.                                                        D. By making classifications.

4.What is the passage mainly about?

A. The beginning of road design.

B. The development of transport wheels.

C. The history of public transport

D. The invention of fast-moving vehicles.

 

–We need a person badly to be in charge of this design.

--_________ the new comer have a try?

A．May

B．Shall

C．Will

D．Need

 

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