1.Children who start speaking late ________
A. may have problems with their listening
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
2.A baby’s first noises are ________ .
A. an expression of his moods and feelings
B. an early form of language
C. an imitation of the speech of adults
D. a sign that he means to tell you something
3.The problem of deciding at what point a baby’s imitation can be considered as speech ________ .
A. is important because words have different meanings for different people
B. is not especially important because the change takes place gradually
C. is one that should be ignored(忽略)because children’s use of words is often meaningless
D. is one that can never be properly understood because the meaning of words changes with age
4.The speaker implies that ________ .
A. even after they have learnt to speak, children still enjoy imitation
B. children who are good at imitating learn new words more quickly
C. children no longer imitate people after they begin to speak
D. patents can never hope to teach their children