第二节：完形填空

阅读下面短文,从短文后所给各题的四个选项（A、B、C和D）中选出能填入相应空白处的最佳选项，并在答题卡上将该项涂黑。

Washoe is a young chimpanzee (黑猩猩). She is no 1 chimpanzee, though. Scientists are doing research 2 her. They want to see how civilized (驯化) she can 3 . Already she can do many things a human being does. For example, she has been learning how to exchange 4 with people. The scientists are teaching her 5 language. When she wants to be picked 6 , Washoe points up with one finger. She rubs her teeth with her finger 7 she wants to brush her teeth. This is done after every meal. Washoe has also been 8 to find answers to problems. Once she was put in a 9 with food hanging from the ceiling. It was too high to 10 . After she considered the 11 , she got a tall box to 12 . The food was still too high to be reached. Washoe found a 13 pole. Then she climbed onto the 14 , grasped (抓取) the pole, and 15 down the food with the pole. Washoe 16 like a human, too. The scientists keep her in a fully furnished house. After a hard 17 in the lab, she goes home. 18 she plays with her toys. She 19 enjoys watching television before going to bed. Scientists hope to 20 more about people by studying our closest relative -- the chimpanzee.
1. [A]foolish [B]simple [C]special [D]ordinary
2. [A]for [B]on [C]to [D]by
3. [A]experience [B]change [C]develop [D]become
4. [A]actions [B]views [C]messages [D]feelings
5. [A]human [B]sign [C]spoken [D]foreign
6. [A]out [B]at [C]on [D]up
7. [A]when [B]until [C]since [D]while
8. [A]trained [B]raised [C]ordered [D]led
9. [A]hole [B]zoo [C]room [D]museum
10. [A]pull [B]see [C]eat [D]reach
11. [A]problem [B]position [C]food [D]ceiling
12. [A]stand by [B]stand on [C]stand up [D]stand with
13. [A]straight [B]strong [C]long [D]heavy
14. [A]wall [B]box [C]ceiling [D]pole
15. [A]knocked [B]picked [C]took [D]pulled
16. [A]lives [B]works [C]thinks [D]plays
17. [A]task [B]lesson [C]time [D]day
18. [A]But [B]There [C]So [D]Besides
19. [A]quite [B]already [C]even [D]still
20. [A]see [B]answer [C]learn [D]gain