Americans can travel almost anywhere they choose. But to protect its people ,the government lists a few dangerous places where Americans cannot go. These places are unfriendly countries or countries at war. There the travelers might not be safe. These countries are listed in a small book called a passport.
This passport is a government request for the safety of its traveling people. It is also a government's pledge (保证）that the people will obey the rules of the host countries.
To receive a passport from the government，a traveler must prove that he is an American citizen (公民） An American cannot go overseas without a pass-port. Only certain close countries such as Canada and Mexico do not ask for passports.
Pasted inside the passport is the traveler's picture. Children traveling with their parents are included in one parent's book.
Tens of thousands of people from the United States visit other countries every year. An American traveler might carry plane tickets，money, clothing and many other things. But the most important thing that he carries in another country is his passport.
A passport is not needed when an American goes to __________

A．foreign countries

B．dangerous areas

C．Canada or Mexico

D．countries overseas

From the passage we can see that __________.

A．children can't travel to foreign countries

B．Americans like to travel

C．a traveler is not safe in most countries

D．Americans like to travel to close countries

Why does a traveler need a passport?

A．He needs something more to carry when he travels.

B．It helps the country to protect the people.

C．He needs to have his picture taken more often.

D．It helps the traveler to know where he will go.

Which statement does the passage lead you to believe?

A．People should take care of their passports.

B．It is not important to have a passport to travel.

C．Children are never included in a passport.

D．When you are in another country, money is more important than a passport.

Which of the following is TRUE?

A．When Americans are traveling in another country, they must obey the rules of the country.

B．The American government sometimes allows its people to travel to dangerous places.

C．A passport is needed wherever an American is traveling.

D．Everyone who lives in the United States can get a passport from the American government.