完形填空
The White House
We got up early this morning and __1__ a long walk after breakfast. We walked through the business section of the city. I told you yesterday that the city was larger__2__ I thought it would be. __3__ the business section is smaller than I thought it would be. I suppose that's__4__ Washington is a special kind of city. __5__the people in Washington work for the government. A bout 9：30 we went to the White House. It's__6__ to the public from 10 till12, and there was a long line of people waiting to get in. We didn't have to wait very long, because the line moved __7__quickly.
The White House is really white. It is painted every year. And it seems very white， because it's got beautiful lawns all around it, ____8____many trees and shrubs. The grounds__9__ about four square blocks. I mean, they're about two blocks long__10__ each side. Of course, we didn't see the whole building. The part__11__the President lives and works is not open to the public. But the part we saw was beautiful. We went through five of the main rooms. One of them was the library, on the ground floor. On the next floor, there are three rooms named__12__ the colors that are used in them： the Red Room, the Blue Room, and the Green Room. The walls are covered with silk__13__. There are__14__ old furniture, from the time__15__ the White House was first built. And everywhere there are paintings and statues of former presidents and other famous people from history.
1. A) made B) did C)took D) got
2. A) than B) as C) so D) like
3. A) But B) Yes C) So D) Then
4. A) since B) as C) because D) because of
5. A) Much of B) Most of C) A lot D) Lots
6. A) open B) opening C) being opened D) opened
7. A) pretty B) little C) much D) very much
8. A) / B) having C) with D) together
9. A) include B) cost C) cover D) spread
10. A) by B) on C) for D) with
11. A) which B) what C) that D) where
12. A) by B) for C) after D) before
13. A) cloth B) clothes C) clothing D) cloths
14. A) Much pieces of B) many pieces of C) many a D) a great many
15. A) that B) which C) who D) when
答案：1. C 2. A 3. A 4. C 5. B 6. A 7. A 8. C 9. C 10. B 11. D 12. C 13. A 14. B 15. D
The Greatest Mystery of Whales
The whale is a mammal - warm-blooded, air-breathing, giving birth to its young alive, sucking them-and, like all mammals, originated on land. There are many signs of this. __1__ front flippers, used for steering and stability, are traces of feet.
Immense strength is built into the great body of the big whales, and in fact most of a whale's body is one gigantic muscle. The blue whale's pulling __2__ has been estimated at 400 horsepower. One specimen was reported to have __3__ a whaling vessel for seven hours at the __4__ of eight knots.
An enraged whale will attack a ship. A famous __5__ of this was the fate of whaler Essex, which was sunk __6__ South America early in the last century. More recently, steel ships have had their plates buckled in the same way. Sperm whales were known to __7__ the old-time whaleboats in their jaws and crush them.
The greatest mystery of whales is their diving ability. The sperm whale __8__ the bottom for his favourite food, the octopus. __9__ he is known to go as far down as 3,200 feet, where the pressure is 1,400 pounds, to the square inch. Doing __10__ he will remain submerged as long as one hour. Two feats are involved in this : storing up enough __11__(all whales are air-breathed) and withstanding the great change in pressure. Just __12__ he dose it scientists have not determined. It is believed that some of the oxygen is stored in a special system of blood vessels, rather than just held in the lungs. And __13__ that a special kind of oil in his head is some sort of compensating mechanism that automatically adjusts the internal pressure of his body. But __14__ you can't bring a live whale into the laboratory for study, no one __15__ just how these things work.
EXERCISE:
1. A)Their B)His C)Theirs D)Its
2. A)strength B)width C)height D)length
3. A)eaten B)crashed C)towed D)lifted
4. A)distance B)rate C)voyage D)sail
5. A)picture B)film C)example D)book
6. A)off the coast of B)of the coast of C0away the coast of D)in the coast of
7. A)hit B)seize C)damage D)overturn
8. A)sink to B)rest on C)dive to D)hide on
9. A)In that search B)Because of this C)In spite of that D)In support of this
10. A)so B)such C)above D)the same
11. A)air B)oxygen C)energy D)heat
12. A)what B)where C)how D)when
13. A)it is believed B)he believes C)we believe D)it believes
14. A)because of B)due to C)since D)owing to
15. A)communicates B)knows C)hears D)develops
答案：D A C B C A B C A A B C A C B