2 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The Silk Road is in fact a relatively recent term.These ancient roads had no particular name until in the mid­nineteenth century; Baron Ferdinand von Richthofen     1    (name) the trade and communication network the Silk Road. Since then the term     2    (accept) globally.

In the nineteenth century, a new type of travelers stepped onto the Silk Road: archaeologists and geographers, enthusiastic explorers who were eager     3    (look) for adventure.Researchers who came from many countries traveled through the Taklamakan Desert,    4     is now in Xinjiang, to explore ancient sites along the Silk Road,    5    (lead) to many discoveries and studies, and most of all, a renewed interest     6    the history of these routes.

Today，many historic     7    (build) and monuments still stand, marking the passage of the Silk Road through hotels, ports and cities. What’s more, the long­standing legacy (遗产) of this remarkable network is reflected in     8     large number of cultures, languages, customs and religions that have developed for many years along these routes. The passage of merchants and travelers of many     9    (difference) nationalities resulted not only in commercial exchange, but in a widespread and continual process of cultural interaction.    10    (obvious), it has become a driving force in the formation (形成) of diverse societies.

3 . 阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

Some time after 10,000 BC, people made the first real attempt to control the world they lived     1     , through agriculture. Over thousands of years, they began to depend less on     2     could be hunted or gathered from the wild, and more on animals they had raised and crops they had sown.

Farming produced more food per person     3     hunting and gathering, so people were able to raise more children. And，as more children were born, more food     4    (need). Agriculture gave people their first experience of the power of technology     5    (change) lives.

By about 6000 BC，people     6     (discover)the best crops to grow and animals to raise. Later，they learned to work with the     7     (season)，planting at the right time and, in dry areas,     8     (make) use of annual floods to irrigate (灌溉) their fields.

This style of farming lasted for quite a long time. Then，with     9     rise of science, changes began. New methods     10     (mean) that fewer people worked in farming. In the last century or so, these changes have accelerated. New power machinery and artificial fertilizers (化肥) have now totally transformed a way of life that started in the Stone Age.

4 . Golden Gate Bridge

Located in San Francisco, the Golden Gate Bridge started in the year 1933 to connect the San Francisco Peninsula with Marin County. It was finally thrown open to public traffic in 1937. It cost $25.7 million in the construction. Till the year 1957, the Golden Gate Bridge, at a length of 2,737 meters, was the longest suspension bridge in the world.

Brooklyn Bridge

The Brooklyn Bridge is located in Brooklyn. It is one of the oldest suspension bridges in the United States, having been opened in the year 1883. The length of the bridge is 1,843 meters. The bridge has been featured in several Hollywood movies.

George Washington Bridge

Also known as the Hudson River Bridge and the Columbus Bridge, the George Washington Bridge which connects Fort Lee to Manhattan came into use in 1931 after a construction period of almost 4 years. It is a two level suspension bridge that cost about $52 million to build.

Mackinac Bridge

This is the third biggest suspension bridge in the world at a length of 8,038 meters. The architect of this bridge was Dr. David B. Steinman, who directed the construction of the bridge which started in the year 1954 and opened to the public in 1958. People using this bridge are charged a certain amount of money.

Navajo Bridge

Located in Arizona, this bridge crosses the Colorado River and is almost 250 meters long. The construction of this bridge started in the year 1927, ending two years later, costing $390,000. In the 1990s, a second bridge was built which was opened to the public in 1994. The first bridge is now used only by pedestrians.

1. What do we know about the Golden Gate Bridge?

A．It consists of two bridges.

B．It costs the least of the five bridges.

C．It is the longest suspension bridge in the world.

D．It takes about 4 years to complete the construction.

2. Which of the following bridges was built the earliest?

A．Golden Gate Bridge.

B．Brooklyn Bridge.

C．George Washington Bridge.

D．Navajo Bridge.

3. What will you do if you drive across Mackinac Bridge?

A．Have to pay some money.

B．Use the second bridge.

C．Cover nearly 250 meters.

D．See the statue of Dr. David B. Steinman.

5 .     1    People use money to buy food, furniture, books, bicycles and hundreds of other things they need or want. When they work, they usually get paid in money.

Most of the money today is made of metal or paper.    2    One of the first kinds of money was shells.

Shells were not the only things used as money. In China, cloth and knives were used. In the Philippine Islands, rice was used as money for a long time. Elephant tusks, monkey tails and salt were used as money in parts of Africa.

The first metal coins were made in China. They were round and had a square hole in the centre.    3    

Different countries have used different metals and designs for their money.    4    Sweden and Russia used copper (铜) to make their money. Later some countries began to make coins of gold and silver.

But even gold and silver were inconvenient if you had to buy something expensive. Again the Chinese thought of a way to improve money.    5    The first paper money looked more like a note from one person to another than the paper money used today.

Money has had an interesting history from the days of shell money until today.

A．The first coins in England were made of tin (锡).

B．But people used to use all kinds of things as money.

C．No one knows for certain when people began to use money.

D．People strung (串连) them together and carried them from place to place.

E．Money, as we know, is all made of paper.

F．They began to use paper money.

G．Today anyone will accept money in exchange for goods and services.