中考英语完形填空原创加真题改编(十六)

中考英语完形填空原创加真题改编(十六) 参考答案 Passage 1 1～5 ABCDB 6～10 CABDA 11～15 CBDDA Passage 2 1~5 BCDCA 6～10 BCADA Passage 3 1～5 CDBAB 6～10 DACAC 11～15 DBCAB Passage 4 1～5 BADCC 6～10 DDBDA Passage 5 1～5 BCDBA 6～10 ABDDA 11～15 BDCCA 学科网（北京）股份有限公司 $$ 中考英语完形填空原创加真题改编(十六) Passage 1 完形填空 体 裁 话 题 英文词数 说明文 自然与动物 286 Monkeys seem to have a way with numbers. A team of researchers trained three Rhesus monkeys to connect 26 clearly 1 symbols —numbers and letters with 0 to 25 drops of water or juice as a reward. Then they tested 2 monkeys combined(组合) or added symbols to get rewards. The following is the experimental 3 of Margaret Livingstone, a scientist at Harvard Medical School: In their cages the monkeys were 4 with touch screens. On one part of the screen, a symbol would appear, and on the other side two symbols inside a circle were 5 . For example, the number 7 would 6 on one side of the screen and the other end would be 9 and 8. The monkeys would be rewarded with seven drops of water or juice 7 they touched the left side of the screen. When choosing the circle, they would be rewarded with the sum(总和) of the numbers—17 in this 8 . After hundreds of tests, the researchers 9 that monkeys would choose higher values more than half the time, meaning that they were computing, not 10 remembering the values of each combination. next to When the team examined the results of the experiment more 11 , they found that the monkeys usually underestimate(低估) a sum 12 a single symbol. When the two were close in value, sometimes they choose 13 13 the sum of 8 and 6. The underestimation was systematic(系统性): When adding two numbers, the monkeys 14 paid attention to the larger of the two, and then added only a fraction(小部分) of the smaller number to it. “This shows that the number is in their brains in a 15 way, ”Dr. Livingstone says. “But in this experiment what they’re doing is paying more