阅读理解。 Washington D. C. is the capital of the United States. It's the center of the national gov-ernment. It's a busy, working city with a large population. But what is more, Washington is also a city of history and culture. Washington was created in 1790, when Congress (the highest law- body of the U. S. A.) decided to place the nation' new capital in the east of the country. It was built half-way between the northern and the southern states of the America. And of course it was named after George Washington, the first President of the United States. There are many tourist sights in Washington. One of them is the White House. This is the home and office of the President of the United States. Most visitors are, however, surprised by how small the White House actually is. Washington is also a great culture city. The Library of Congress contains (包括) one of the largest library collections in the world. The Smithsonian Museum holds the nation's largest collection of cultural materials. And me John F. Kennedy Center is a famous center of art and culture. It. has many great musical and theatre performances throughout the year. 1. The writer mainly talks about _____. A. Washington B. the history of Washington C. buildings and sights-in Washington D. the history and culture of Washington 2. From the passage we know that Washington is situated(位于) in ______ . A. the east of the U. S. A. B. the center of the U. S. A C. the east, on the middle point from north to south, of the country D. the east and half-way away from the north 3. The White House impresses (给人印象) the people most for _____ . A. its white color B. its size C. its history D. it is the home and office of the president 4. The writer introduces Washington in the order of_____  . A. general introduction, history, sights and culture B. population, history and culture C. general introduction, history, sights, buildings and culture D. history and culture