D
When companies do business overseas, they come in contact with people from different cultures.  These individuals often speak a different language and have their own particular custom and manners.  These differences can create problems.
For example, in France, business meetings begin immediately at the scheduled time and everyone is expected to be there.   Foreign business people who are slow in acting are often left outside to cool their heels as a means of letting them know the importance of promptness（准时）. Unless one is aware of such expected behaviors he may end up insulting the people with whom he hopes to establish trade relations.
A second traditional problem is that of monetary conversions(货币兑换).  For example, if a trade is conducted with Russia, payment may be made in rubles.  Of course, this particular type of money used in Russia is of little value to the American firm.  It is, therefore, necessary to exchange the foreign money to American dollars.  How much are these Russian rubles worth in terms of dollars?  This exchange rate is determined by every market, where the money of countries are bought and sold.   Thus there is an established rate, although it is often different from day to day.  For example, the ruble may be worth 0.75 on Monday and 0.72 on Tuesday because of an announced wheat shortage in Russia.  In addition, there is the problem associated with exchange at 0.72.  Some financial institutions may be unwilling to pay this price, feeling that the ruble will sink much lower over the next week.   As a result, exchange may finally come at 0.69.   These "losses" must be accepted by the company as one of the costs of doing business overseas.
A third unique problem is trade barriers.  For one reason or another, all countries impose trade barriers on certain goods crossing their borders.  Some trade barriers are directly related to exports.  For example, the United States permits strategic military material to be shipped abroad only after government permission has been obtained.  Most trade barriers, however, are designed to restrict import.  Two of the most common import barriers are quotas and tariffs.
76. The best title for the passage would be ___.
A. How to Succeed in International Trade
B. Monetary Conversion
C. Trade Barriers
D. Unique Problems in International Trade
77. In France, slow business people ___.
A. are often insulted
B. often suffer from coldness
C. are often left outdoors waiting
D. are often asked to polish their shoes
78. According to the passage, exchange rates ___.
A. seldom change
B. are determined by financial institutions
C. are agreed upon by two trading countries
D. vary from day to day
79. Which of the following is not true according to the passage?
A. Misunderstanding may occur because of the culture differences.
B. Exchange rate can bring losses when doing international trade.
C. Most trade barriers are designed to restrict import.
D. All the exports must get the permission of the government.   .

D

When companies do business overseas, they come in contact with people from different cultures.  These individuals often speak a different language and have their own particular custom and manners.  These differences can create problems.

For example, in France, business meetings begin immediately at the scheduled time and everyone is expected to be there.   Foreign business people who are slow in acting are often left outside to cool their heels as a means of letting them know the importance of promptness（准时）. Unless one is aware of such expected behaviors he may end up insulting the people with whom he hopes to establish trade relations.

A second traditional problem is that of monetary conversions(货币兑换).  For example, if a trade is conducted with Russia, payment may be made in rubles.  Of course, this particular type of money used in Russia is of little value to the American firm.  It is, therefore, necessary to exchange the foreign money to American dollars.  How much are these Russian rubles worth in terms of dollars?  This exchange rate is determined by every market, where the money of countries are bought and sold.   Thus there is an established rate, although it is often different from day to day.  For example, the ruble may be worth 0.75 on Monday and 0.72 on Tuesday because of an announced wheat shortage in Russia.  In addition, there is the problem associated with exchange at 0.72.  Some financial institutions may be unwilling to pay this price, feeling that the ruble will sink much lower over the next week.   As a result, exchange may finally come at 0.69.   These "losses" must be accepted by the company as one of the costs of doing business overseas.

A third unique problem is trade barriers.  For one reason or another, all countries impose trade barriers on certain goods crossing their borders.  Some trade barriers are directly related to exports.  For example, the United States permits strategic military material to be shipped abroad only after government permission has been obtained.  Most trade barriers, however, are designed to restrict import.  Two of the most common import barriers are quotas and tariffs.

76. The best title for the passage would be ___.

A. How to Succeed in International Trade

B. Monetary Conversion

C. Trade Barriers

D. Unique Problems in International Trade

77. In France, slow business people ___.

A. are often insulted

B. often suffer from coldness

C. are often left outdoors waiting

D. are often asked to polish their shoes

78. According to the passage, exchange rates ___.

A. seldom change

B. are determined by financial institutions

C. are agreed upon by two trading countries

D. vary from day to day

79. Which of the following is not true according to the passage?

A. Misunderstanding may occur because of the culture differences.

B. Exchange rate can bring losses when doing international trade.

C. Most trade barriers are designed to restrict import.

D. All the exports must get the permission of the government.   .

D

    When companies do business overseas, they come in contact with people from different cultures.  These individuals often speak a different language and have their own particular custom and manners.   These differences can create problems.

    For example, in France, business meetings begin immediately at the scheduled time and everyone is expected to be there.    Foreign business people who are slow in acting are often left outside to cool their heels as a means of letting them know the importance of promptness（准时）. Unless one is aware of such expected behaviors he may end up insulting the people with whom he hopes to establish trade relations.

    A second traditional problem is that of monetary conversions(货币兑换).  For example, if a trade is conducted with Russia, payment may be made in rubles.   Of course, this particular type of money used in Russia is of little value to the American firm.  It is, therefore, necessary to exchange the foreign money to American dollars.   How much are these Russian rubles worth in terms of dollars?   This exchange rate is determined by every market, where the money of countries are bought and sold.    Thus there is an established rate, although it is often different from day to day.   For example, the ruble may be worth 0.75 on Monday and 0.72 on Tuesday because of an announced wheat shortage in Russia.   In addition, there is the problem associated with exchange at 0.72.   Some financial institutions may be unwilling to pay this price, feeling that the ruble will sink much lower over the next week.    As a result, exchange may finally come at 0.69.    These "losses" must be accepted by the company as one of the costs of doing business overseas.

    A third unique problem is trade barriers.   For one reason or another, all countries impose trade barriers on certain goods crossing their borders.  Some trade barriers are directly related to exports.  For example, the United States permits strategic military material to be shipped abroad only after government permission has been obtained.   Most trade barriers, however, are designed to restrict import.  Two of the most common import barriers are quotas and tariffs.

76. The best title for the passage would be ___.

   A. How to Succeed in International Trade

   B. Monetary Conversion

   C. Trade Barriers

   D. Unique Problems in International Trade

77. In France, slow business people ___.

   A. are often insulted

   B. often suffer from coldness

   C. are often left outdoors waiting

   D. are often asked to polish their shoes

78. According to the passage, exchange rates ___.

   A. seldom change

   B. are determined by financial institutions

   C. are agreed upon by two trading countries

   D. vary from day to day

79. Which of the following is not true according to the passage?

   A. Misunderstanding may occur because of the culture differences.

   B. Exchange rate can bring losses when doing international trade.

   C. Most trade barriers are designed to restrict import.

   D. All the exports must get the permission of the government.   .

A terrible earthquake happened in that district at the end of 2004, ____ many countries in the world paid close attention to this.

    A. where     B. when     C. which     D. what

A black hole is created when a large star burns out. Like our sun, stars are unbelievably hot furnaces (熔炉) that burn their own matter as fuel. When most of the fuel is used up, the star begins to die.

The death of a star is not a quiet event. First there is a huge explosion. As its outer layer is blasted off into space, the dying star shines as brightly as a billion suns.

After the explosion gravity pulls in what’s left of the star. As the outside of the star sinks toward the center, the star gets smaller and smaller. The material the star is made of becomes tightly packed together. A star is so dense that a teaspoon of matter from it weighs billion of pounds.

The more the star shrinks, the stronger the gravity inside it becomes. Soon the star is very tiny, and the gravity pulling it in is unbelievably strong. In fact, the gravity is so strong that it even pulls light into the star! Since all the light is pulled in, none can go out. The star becomes black when there is no light. Then a black hole is born!

That’s what we know about black holes. What we don’t know is this: What happens inside a black hole after the star has been squeezed into a tiny ball? Does it keep getting smaller and smaller forever? Such a possibility is hard to imagine.

But if the black hole doesn’t keep shrinking, what happens to it? Some scientists think black holes are like doorways to another world. They say that as the star disappears from our universe, it goes into another universe. In other words a black hole in our universe could turn into a “white hole” in a different universe. As the black hole swallows light, the white hole shines brightly—somewhere else. But where? A different place, perhaps, or a different time — many years in the past or future.

Could you travel through a black hole? Right now, no. Nothing we know of could go into a black hole without being crushed. So far the time being, black hole must remain a mystery.

Black holes are a mystery—but that hasn’t stopped scientists from dreaming about them. One scientist suggested that in the future we might make use of the power of black holes. They would supply all of Earth’s energy needs, with plenty to spare. Another scientist wondered if a black hole could some day be used to swallow earthly waste—a sort of huge waste disposal(处理) in the sky!

When the star begins to die ______.

A. there is no fuel left in it                                B. its outer layer goes into space first

C. a huge explosion will happen                         D. it doesn’t give off light any longer

Which of the following doesn’t help produce a black hole?

A. The gravity inside the star is very strong.        B. The light can’t go out of the star.

C. The star becomes smaller and smaller             D. The dying star shines very brightly.

The black hole ______.

A. continues becoming smaller and smaller all the time

B. goes into another universe and becomes a white hole

C. can pull in everything we know of in the world

D. will appear at another place at a different time

What’s the best title for this passage?

A. A New Scientific Discovery: Black Holes

B. How Do Black Holes Come Into Being?

C. What Are Black Holes?

D. Travel Through A Black Hole