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题型:阅读理解-阅读单选 难度:0.85 引用次数:125 题号:11907603

Canals have to be built on a level, otherwise the water drains out of them and the canal becomes useless. This was the great problem facing the early canal builders, and they overcame it in different ways. The early engineers like James Brindley simply followed the outlines of the countryside and kept their canals level though it often meant choosing very roundabout routes.

Later engineers, such as Thomas Telford, developed a new technique known as “cut and fill”in which they fixed a level through very accurate surveying. This allowed them to fill in the hollows on a route with the exact amount of soil they took from the higher ground. By this method, very direct routes could be taken, which cut down the time of a journey very considerably. A good example of this type of canal is Telford's Liverpool and Birmingham Junction Canal, which he began in 1826 to provide a direct route from the Midlands to the River Mersey.

It was seldom possible to build a completely level canal, of course, whichever method was used, and most canals were provided with locks in which barges were raised or lowered to new levels. If you look at the diagram on the right, you can see a barge being raised in a lock by means of water which was allowed into the lock basin, or pound, from the upper level of the canal. When a barge had to be lowered, water was allowed out of the pound into the lower level of the canal.

1. Brindley's canals were less efficient, most likely because ________.
A.he was not a good canal engineer
B.the techniques and skills available at the time were useless
C.his canals were built to keep the water drains out
D.they had too many roundabout routes
2. According to this passage, why was the“cut and fill”technique designed?
A.The outlines of the land could not be followed directly.
B.It could make travelling distances shorter and save journey time.
C.New surveying techniques had been invented successfully.
D.The distance between the Midlands and River Mersey is great.
3. Locks are needed in canals to ________________.
A.help boats to travel in both directions
B.keep water levels changing all the time
C.allow large ships to travel in canals
D.transfer boats across differing water levels

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【推荐1】The Golden Gate Bridge is a well-recognized landmark in the United States. It spans (横跨) the Golden Gate Strait — a mile-wide stretch of water that connects the San Francisco Bay to the Pacific Ocean. The Golden Gate Bridge is one of the most beautiful bridges in the world. It is also one of the tallest.

The idea for a bridge across the strait had been around for many years, because San Francisco suffered from its isolated location. Planning for the Golden Gate Bridge began in 1916, but the design underwent many changes before construction finally started in 1933.

Joseph Strauss was the chief engineer in charge of the bridge project. However, he had little experience with the construction of suspension bridges (吊桥). For this reason, other engineers, architects, and designers made great contributions to the design and construction of the bridge. For example, the bridge owes its art deco (装饰派艺术) style and distinctive orange color to the architects Irving and Gertrude Morrow. Charles Alton Ellis did much of the technical work necessary to build the bridge.

It was not easy to get the project started. Financing had to be found, and there was much opposition to the very idea of a bridge. The US Navy, for example, feared, that a bridge would block ship traffic. The Southern Pacific Railroad, which ran the ferry fleets (轮渡船队), feared competition from the bridge. Many experts did not believe that it would be possible to build such a long bridge under such difficult circumstances. There are strong currents and heavy winds on the bridge site, which made construction dangerous.

The construction of the bridge finally began in 1933. The construction work set new standards for safety — workers were among the first required to wear hard hats, and a safety net saved the lives of nineteen men while the bridge was built. The Golden Gate Bridge was completed in 1937, when the bridge was opened to pedestrians (行人). It was opened to cars one year later. The bridge was finished ahead of schedule and cost much less than originally budgeted.

Because the Golden Gate Bridge is the first sight for many people arriving in the United States by ship, it is sometimes called the “Statue of Liberty” for the West Coast.

1. According to the text, the Golden Gate Bridge                  .
A.is the best-known symbol of AmericaB.crosses the Golden Gate Strait
C.crosses the San Francisco BayD.is about a mile wide.
2. Why was the idea for the bridge put forward?
A.To give the West Coast a new tourist attraction.
B.To connect San Francisco to the Pacific Ocean.
C.To set up a well-known landmark.
D.To compete with the ferry fleets.
3. The idea for the Golden Gate Bridge                  .
A.was first suggested in 1916
B.was first put forth by Joseph Strauss
C.was perfected by Gertrude Morrow in 1933
D.was put forward long before construction started
4. What can we learn about the Golden Bridge from paragraph 5?
A.It was finished under budget.
B.It was delayed for one year.
C.It was opened to the vehicles in 1937.
D.It was the first to set safety standards.
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【推荐2】The United Kingdom, Great Britain, Britain, England-many people are confused by what these different names mean. So what is the difference between them, if any? Getting to know a little bit about British history will help you solve this puzzle.

In the 16th century, the nearby country of Wales was joined to the Kingdom of England. Later, in the 18th century, the country Scotland was joined to create the Kingdom of Great Britain. In the 19th century, the Kingdom of Ireland was added to create the United Kingdom of Great Britain and Ireland. Finally, in the 20th century, the southern part of Ireland broke away from the UK, which resulted in the full name we have today: “the United Kingdom of Great Britain and Northern Ireland. Most people just use the shortened name: “the United Kingdom” or “the UK”. People from the UK are called “British”, which means the UK is also often referred to as Britain or Great Britain.

The four countries that belong to the United Kingdom work together in some areas. They use the same flag, known as the Union Jack, as well as share the same currency and military defence. However, they also have some differences. For example, England, Wales, Scotland, and Northern Ireland all have different education systems and legal systems. They also have their own traditions, like their own national days and national dishes. And they even have their own football teams for competitions like the World Cup!

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1. What can help us find out the difference between some different names of the UK?
A.British languages.B.British history.
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A.Britain.B.Scotland.C.Wales.D.Ireland.
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A.The flag.B.The currency.
C.The military defence.D.The education system.
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A.Building towns and roads.
B.Changing the way of building houses.
C.Leaving behind many new vocabulary.
D.Changing the legal system.
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【推荐3】Valentine’s Day has its origins in the ancient Roman feast of Lupercalia, a yearly festival held on Feb. 15 to help keep dangerous wolves away from townspeople and their crops. On the eve of the festival, Feb. 14, the young women of the town would write their names on small pieces of paper, put them in a jar, and every young man would pick out a name at random. The pair would then be partners for the rest of the festival.
It was 270 B.C. when St. Valentine stood up for love, after Roman Emperor Claudius II forbade Roman soldiers to get engaged or married, believing that married men would rather stay at home than go to war. The priest named Valentine, in defiance (对抗) of Claudius’ orders, secretly married young couples, and on Feb. 14, was punished for his “crime”, thereby becoming the patron saint (守护神) of lovers.
Besides this story, there are some old beliefs about this day:
During the Middle Ages, Europeans believed that birds chose their mates each year on Feb. 14.
Some people used to believe that if a woman saw a robin fly overhead on Valentine’s Day, it meant she would marry a sailor; if she saw a sparrow, she’d marry a millionaire.
If you cut an apple in half and count how many seeds are inside, you will know how many children you will have.
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Heart, keys and keyholes were favorite decorations, which meant “you unlock my heart!”
In the Middle Ages, young men and women drew names from a bowl to see who their valentines would be. They’d wear these names on their sleeves for one week—hence the term “to wear your heart on your sleeve”.
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C.rulerD.feast
2. The Roman emperor forbade soldiers to get married because he thought________ .
A.married soldiers are not loyal to the country
B.married soldiers are less willing to fight
C.there was no time for soldiers to get married
D.marriage is a crime
3. Why was the priest punished?
A.He didn’t join the army.
B.He helped people escape from being sent to the battle field.
C.He married couples despite the prohibition from the ruler.
D.He openly defied the ruler’s order to end his marriage.
4. Which of the following statement is NOT true according to the passage?
A.Feb. 14 and 15 were originally a time for keeping wolves.
B.People used to believe that birds chose mates on Valentine’s Day.
C.People believed that the birds they saw on Valentine’s Day predicted what kind of person they would marry.
D.The Welsh used to give out wooden spoons on Feb.14.
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A.openly express your feelings or emotions to others.
B.hardly take your feelings or emotions very seriously.
C.officially announce that you have been married
D.proudly show your choice of sleeve pattern
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