22. in the third paragraph, “the old country" is contrasted with america .
a. to show differences in family size
b. to show differences in attitudes towards family relations
c. to show two kinds of geography
d. to show two different kinds of economic relations between generations
23. going to the moon is an example of .
a. america's dreams and creativity
b. america's childish and queer behavior
c. why america hasn't grown up
d. why america is considered as the greatest country in the world
24. according to the passage, which of the following is true?
a. it is very difficult for the middle-aged to live in america
b. america is kid's country because the majority of the american population are children
c. kid's country was taking shape in america when immigrants poured into the country.
d. america is more of kid's country than any other countries in the world
25. by saying “condemning all of us to remain boys and girls forever, jogging and doing push-ups against eternity", the author means that .
a. she thinks people shouldn't be so concerned about physical fitness
b. she feels too old and tired to do such hard exercise
c. american society is overemphasizing youth and physical appearance
d. what happened to children centuries ago may occur to adults in america soon
passage 2
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 flickering 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 out pulses that can be measured and recorded on the surface of the body. when the pulses are recorded, they form an electrocardiogram, which a doctor can study to determine how well the heart is working. the brain, too, sends out brain waves of electricity, which can be recorded in an electroencephalogram, the electric currents generated by most living cells are extremely small-often so small that sensitive instruments are needed to record them. but in some animals, certain muscled cells have become so specialized as electrical generators that they do not work as muscle cells at all. when large numbers of these cells are linked together, the effect can be astonishing.
the electric eel is an amazing living storage battery. it can send a jolt of as much as eight hundred volts of electricity through the water in which it lives. (an electric house current is only one hundred twenty volts.) as many as four-fifths of all the cells in the electric eel's body are specialized for generating electricity, and the strength of the shock it can deliver corresponds roughly to the length of its body.
a. to show differences in family size
b. to show differences in attitudes towards family relations
c. to show two kinds of geography
d. to show two different kinds of economic relations between generations
23. going to the moon is an example of .
a. america's dreams and creativity
b. america's childish and queer behavior
c. why america hasn't grown up
d. why america is considered as the greatest country in the world
24. according to the passage, which of the following is true?
a. it is very difficult for the middle-aged to live in america
b. america is kid's country because the majority of the american population are children
c. kid's country was taking shape in america when immigrants poured into the country.
d. america is more of kid's country than any other countries in the world
25. by saying “condemning all of us to remain boys and girls forever, jogging and doing push-ups against eternity", the author means that .
a. she thinks people shouldn't be so concerned about physical fitness
b. she feels too old and tired to do such hard exercise
c. american society is overemphasizing youth and physical appearance
d. what happened to children centuries ago may occur to adults in america soon
passage 2
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 flickering 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 out pulses that can be measured and recorded on the surface of the body. when the pulses are recorded, they form an electrocardiogram, which a doctor can study to determine how well the heart is working. the brain, too, sends out brain waves of electricity, which can be recorded in an electroencephalogram, the electric currents generated by most living cells are extremely small-often so small that sensitive instruments are needed to record them. but in some animals, certain muscled cells have become so specialized as electrical generators that they do not work as muscle cells at all. when large numbers of these cells are linked together, the effect can be astonishing.
the electric eel is an amazing living storage battery. it can send a jolt of as much as eight hundred volts of electricity through the water in which it lives. (an electric house current is only one hundred twenty volts.) as many as four-fifths of all the cells in the electric eel's body are specialized for generating electricity, and the strength of the shock it can deliver corresponds roughly to the length of its body.