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B.probably do not hear enough language spoken around them
C.usually pay close attention to what they hear
D.often take a long time in learning to listen properly
62.A baby’s first noises are ________.
A.an expression of his moods and feelings B.an early form of language
C.a sign that he means to tell you something D.an imitation of the speech of adults
63.The problem of deciding at what point a baby’s imitations can be considered as speech________.
A.is important because words have different meanings for different people
B.is not especially important because the changeover takes place gradually
C.is one that should be properly understood because the meaning of words changes with age
D.is one that should be completely ignored(忽略)because children’s use of words is often meaningless
64.The speaker implies________.
A.parents can never hope to teach their children new sounds
B.children no longer imitate people after they begin to speak
C.children who are good at imitating learn new words more quickly
D.even after they have learnt to speak, children still enjoy imitating
C
65.We are told that in an average family about 1990________.
A.many children died before they were five B .the youngest child would be fifteen
C.seven of eight children lived to be more than five D.four of five children died when they were five
66.When she was over fifty, the late 19th century mother________.
A.would expect to work until she died
B.was usually expected to take up paid employment
C.would be healthy enough to take up paid employment
D.was unlikely to find a job even if she is now likely
67.Many girls, the passage says, are now likely to ________.
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