4. A. inside　　　 B. top　　　　 C. upside　　　 D. outside

答案: D　 指导：因为坚果是在瓶子里面，所以我们从“外面”可以看得到。其他选项不合语境。

3. A. moved　　　　 B. removed　　 C. taken　 　　D. loosen

答案: B　 指导：科学家要把两个坚果放到瓶子里面，应首先把瓶塞“除去”。“移动”“松开”等都不合逻辑。

2. A. learn　　　　 B. know　　　　 C. study D. find

答案: C　 指导：科学家饲养黑猩猩和猴子显然是研究它们的心理。

1. A. kept　　　　 B. raised　　　 C. fed　　　　 D. caught

答案: A　 指导：keep"饲养”，此处指科学家饲养了几只黑猩猩和猴子，以研究动物心理。本题干扰性最强的是raise，但raise一般当“抚养长大”讲，相当于bringup；feed"喂食”，意思不全面。

20. A. think　　 B. go　　　　 C. care　　　 D. bring

答案: C　 指导：狗为人提供了可以“关心”的对象。

Cloze 3

I would like to share with you a story of the monkey. In Thompson's The Outline of Science there is story about a scien- tist who　 1　 　several chimpanzees and monkeys in order to 　　2　 animal psychology, He took a glass bottle,　 3　 its cork (瓶塞) and put two peanuts inside the bottle. Needless to say, the peanuts dropped to the bottle and were easily seen from the　 4　 . He then passed the bottle to a monkey, who shook it　 　5　 for a long while and was 　6　 able to get the peanuts when they 　7　 fell out. The scientist then put some peanuts into the bottle again　 8 　he had done before and showed the monkey that it only needed to　 9　 the bottle upside down for the peanuts to drop out. 　10　 the monkey always ignored his 　11 　. Each time it just shook the bottle frantically, wlth great　 12 　but without necessarily achieving　 13 result.

Now the question is why the monkey was unable to under 　stand what the scientist instructs.　 　14　 　because all its attea-tion was focused on the peanuts. As it was simple mindedly　 concentrating on reaching the food, it had no time for understanding 　15　 learning. To learn, it must take its eyes off the peanuts and shift its attention to the　 　16　 movement of the man and the 　17　 the bottle was turned upside down. To shift its attention, it had to 　18 　down and not be taken ow by the impulse (诱惑) of its appetite. Yet the monkey was tx able to understand this. It is instances like this 　19　 revea (提示)the monkey's lack of 　20 .

19. A. welcome　 B. greet　　　 C. help　　　 D. treasure

答案: A　 指导：狗会对人表示“欢迎”。greet“问候、打招呼”，treasure"珍惜”不能用来形容狗的行为。

18. A. strength　 B. power　　　 C. energy　　 D. wonder

答案: B　 指导：power当“巨大或神奇的力量”讲。strengh“体力”，energy"精力，自然界的能”，wonder"惊奇”都不合语境。

17. A. should　　 B. could　　　 C. would　　　 D. might

答案: C　 指导：would此处表示“意愿”。此处是指那些性情乖僻，不愿跟人讲话的孩子。其他情态动词无此用法。

16. A. calmer　　 B. wanner　　 C. clever　　 D. worse

答案: A　 指导：宠物对病人有安慰作用，因此他们变得“更安静”了。

15. A. Workers　 B. Patients　 C. Nurses　　 D. Doctors

答案: B　 指导：此处指用宠物对“病人”进行治疗。