71.What is this passage mainly about?　

A.How people should keep fit.　　　　　　　 　B.A healthy diet program.　

C.Some healthy people. 　　　　　　　　　　D.Ways to lose weight.

70.Which of the following is NOT implied in the passage?　

A.Ability to learn to speak a language is inborn in man.　

B.Children do not need to be encouraged to learn to speak.　

C.Early language starters are not necessarily highly intelligent.　

D.Most children learn their language in definite stages.

E

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69.By critical times in Paragraph 3 the author means 　　　.　

A.difficult periods in the child’s life　

B.moments when the child becomes critical to its mother　

C.important stages in the child’s development 　

D.times when mothers often neglect their children

68.The reason some children are backward in speaking today is that 　　　.　

A.their mothers do not respond to their attempts to speak　

B.their mothers are not intelligent enough to help them　

C.they do not listen carefully to their mothers　

D.their brains have to absorb too much language at once

67.Frederick II’s experiment was violent because 　　　.　

A.he wanted to prove children are born with ability to speak　

B.he paid no attention to the importance of mothering to the infant　

C.he was unkind to the nurses　

D.he wanted his nurses to say no mother tongue

67.The passage mainly discusses 　　　.　

A.the experiments on the common cold　

B.the fallacy about the common cold　

C.the reason and the way people catch colds

D.the continued spread of common colds

D

Is language,like food,a basic human need?Judging from the result of the violent experiment by a German king.Frederick Ⅱ,in the 13th century,it may be.Hoping to discover what language a child would speak if the heard no mother tongue,he told the nurses to keep silent.

All the babies died before the first year.But clearly there was more than language deprivation here.What was missing was good mothering.Without good mothering,in the first year of life especially,the capacity to survive is seriously affected.

Today no such violent deprivation exists as that ordered by Frederick Ⅱ.Nevertheless,some children are still backward in speaking.Most often the reason for this is that the mother is insensitive(不敏感)to the signals of the baby,whose brain is programmed to map up language rapidly.There are critical times,it seems,when children learn more readily.If these sensitive periods are neglected(忽视),the ideal time for gaining language skills passes and they might never be learned so easily again.

Linguists(语言学家)suggest that speech stages are reached in a fixed sequence(顺序)and at a constant age,but there are cases where speech has started late in a child who eventually turn out to be of high IQ.

Recent facts suggest that baby is born with the capacity to speak.What is special about Man’s brain,compared with that of the monkeys,is the complex system which enables a child to connect the sight and feel of,say,a teddy-bear(玩具熊)with the sound pattern“teddy-bear”.

But speech has to be stimulated(刺激),and this depends on interaction between the mother and the child,where the mother recognizes the signals in the child’s babbling(牙牙学语),grasping,crying and smiling,and responds to them.Insensitivity(不敏感)of the mother to these signals dulls(使迟钝)the interaction because the child gets discouraged and sends out only the obvious signals.Sensitivity to the child’s non-verbal signals in essential to the growth and development of language.　

66.Volunteers taking part in the experiments in the Common Cold Research Unit 　　　.　

A.suffered a lot　　　　　　　　　　　 B.never cuaght colds

C.often caught colds　　　　　　　　　 D.became very strong

65.Arctic explorers may catch colds when 　　　　.　

A.they are working in the isolated arctic regions　

B.they are writing reports in terribly cold weather　

C.they are free from work in the isolated arctic regions　

D.they are coming into touch again with the outside world

64.Which of the following does not agree with the chosen passage?　

A.The Eskimos do not suffer from colds all the time.　

B.Colds are not caused by cold.　

C.People suffer from colds just because they like to stay indoors.　

D.A person may catch a cold by touching someone who already had one.

63.The writer offered 　　　　examples to support his argument.　

A.4　　　　　　 B.5　　　　　　 C.6　　　　　　 D.3