Washoe is a young chimpanzee(黑猩猩). She is no 1 chimpanzee, though. Scientists are doing a

Washoe is a young chimpanzee(黑猩猩). She is no 1 chimpanzee, though. Scientists are doing a research 2 her. They want to see how civilized(驯化) she can 3 . Already she does many things a human being can do.
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 think out and 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 stand 12 . The food was still too high to be reached. Washoe found a 13 pole. Then she climbed onto the 14 , grasped the pole, and 15 down the food with the pole.
Washoe 16 like a human, too. The scientists keep her in a fully furnished(家具齐全的) house. After a hard 17 in the laboratory, 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(亲属) — chimpanzee.
1. A. foolish B. ordinary C. special D. simple
2. A. for B. by C. to D. on
3. A. experience B. change C. develop D. become
4. A. actions B. views C. messages D. feelings
5. A. sign B. human C. spoken D. foreign
6. A. out B. at C. on D. up
7. A. when B. until C. since D. while
8. A. raised B. trained C. ordered D. led
9. A. cave 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. by B. on C. up D. with
13. A. straight B. strong C. long D. big
14. A. wall B. box C. ceiling D. pole
15. A. knocked B. picked C. took D. shocked
16. A. lives B. acts C. thinks D. plays
17. A. task B. lesson C. day D. time
18. A. Here B. There C. So D. Then
19. A. quite B. already C. even D. still
20. A. observe B. discover C. gain D. learn1---20 BDDCA DABCD ABCBA ACBCD

(答案→)1---20 BDDCA DABCD ABCBA ACBCD 解析：科学家通过实验测试黑猩猩所能驯化的程度。1. B。句中的 though 是副词，意为“可是”，根据下文描述的实验情况可知“这只黑猩猩不是一只 ordinary(普通的)黑猩猩”。2. D。do a research on 意为“对…进行研究”。3. D。四个选项中只有 become 是连系动词，其后接形容词 civilized 作表语。4. C。下文说到：当黑猩猩想要被抱起时，她将手指向上指；当她想要刷牙时，则用手指刮牙齿。这说明她与人们交换的是“信息”，即 message。5. A。根据下文：当黑猩猩想要被抱起时，她将手指向上指；当她想要刷牙时，她则用手指刮牙齿。这说明黑猩猩用的是“手势语”，即 sign language。6. D。pick up 有很多意思，如表示：拿起，捡起；收拾，整理；学会；(用车)来接，去取；改进，改善；重新开始，继续；感染(疾病、坏习惯)等。它在本句中的意思是“抱起”。7. A。根据上一句的结构可推知。8. B。根据下文的语境可推知。9. C。注意本句后面的信息词 ceiling(天花板)。根据常识，四个选项中只有 C 才具备有 ceiling。10.D。根据后面的 The food was still too high to be reached 可推知答案。11. A。根据上文的 ... to think out and find answers to problems 可知此处应填 problems。12. B。黑猩猩弄来盒子是为了增加高度，所以她应站在箱子之上，即填介词 on。13. C。站在箱子上，高度仍不够，故又弄来一根 pole(竿)。根据常识，在此情况下，这 pole 的特征应是 long。14. B。根据上文可知。15. A。根据常识和语境，黑猩猩此时应是用竿 knock 食物。16. A。从本段后面内容可知，这只黑猩猩是像人一样在“生活”(live)。17. C。根据下文语境用排除法可推知答案。18. B。根据上文可知这里的 there 指“在家里”。19. C。对于黑猩猩来说，enjoys watching television before going to bed 显然比 play with toys 更不常见，故用even(甚至)强调后者。20. D。learn 的意思是“了解”，即指通过研究黑猩猩来“了解”人类自己。

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