问答题 Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be read at normal speed again and during this time you should check through your work once more.
Please write the whole passage on ANSWER SHEET ONE.

【正确答案】

【答案解析】[解析]
When a person draws an analogy, he or she observes similarities between two things, and usually goes on to suggest the thing which is familiar can help explain the one / which is not or is only partly understood. As in forms of logic, there is also the inference / that the similarities noted imply other probable similarities.
Scientists have often described organic processes by analogy. Some analogies are useful and accurate / as far as they go. For example, the comparison of the heart with a pump / or of the kidney with a filter / has helped illustrate the nature and function of these organs. However, analogies that have been proposed to ex plain the nervous system / have been less successful. One aspect of analogies is / that they are limited by the scientific understanding of the time. The mind cannot be compared to a computer, for instance, until there is a computer.