Directions:
For each blank in the following passage, choose the best answer from the choices given below. Mark your answer on the Answer Sheet by drawing with a pencil a short bar across the corresponding letter in the brackets.
The United States has historically higher rates of marriage than those of other industrialized countries. The current annual marriage (31) in the United States--about 9 new marriages for every 1,000 people—is substantially higher than it is in other industrialized countries. However, marriage is (32) as widespread as it was several decades ago. The proportion of American adults who are married (33) from 72 percent in 1970 to 60 percent in 2002. This does not mean that large numbers of people will remain unmarried (34) their lives. Thronghout the 20th century, about 90 percent of Americans married at some point in their lives. Experts (35) that about the same proportion of today’ s young
A. project
B. plan
C. promise
D. propose
Passage Two
The modern age is an age of electricity. People are so used to electric lights, radios, televisions, and telephones that it is hard to imagine what life would be like without them. When there is a power failure, people grope about in fickering candlelight, cars hesitate in the streets because there are no traffic lights to guide them, and food spoils in silent refrigerators.
Yet, people began to understand how electricity works only a little more than two centuries ago. Nature has apparently been experimenting in this field for millions of years. Scientists are discovering more and more that the living world may hold many interesting secrets of electricity that could benefit humanity.
All living cells sent out tiny pulses of electricity. As the heart beats, it sends off pulses of electricity that can be measured and recorded at the surface of the body. When the pulses are recorded, they form an electrocardiogram, which a doctor can study
A. To warn the reader to stay away from them.
B. To compare their voltage to that used in houses.
C. To give an example of a living electrical generator.
D. To describe a new source of electrical power.
我来回答: