Psychologists have succeeded in undermining parents' confidence in their own authority. And it hasn't taken children long to get wind of the fact. In addition to the great modern classics on childcare, there are countless articles in magazines and newspapers. With so much unsolicited advice flying about, mum and dad just don't know what to do any more. In the end, they do nothing at all. So, from early childhood, the kids are in charge and parents' lives are regulated according to the needs of heir offspring. When the little dears develop into teenagers, they take complete control. Lax authority over the years makes adolescent rebellion against parents all the more violent. If the young people are going to have a party, for instance, parents are asked to leave the house. Their presence merely spoils the fun. What else can the poor parents do but obey'?
Children are hardy creatures (far hardier than the psychologists would have us believe) and most of them survive the harmful influence of extreme permissiveness which is the normal condition in the modern household. But a great many do not. The spread of juvenile delinquency in our own age is largely due to parental laxity. Mother, believing that little Johnny can look after himself, is not at home when he returns from school, so little Johnny roams the streets. The dividing-line between permissiveness and sheer negligence is very fine 'indeed.
The psychologists have much to answer for. They should keep their mouths shut and let parents get on with the job. And if children are knocked about a little bit in the process, it may not really matter too much. At least this will help them to develop vigorous views of their own and give them something positive to react against. Perhaps there's some truth in the idea that children who have had a surfeit of happiness in their childhood appear like stodgy puddings and fail to make a success of life.
What is implied in the first sentence?
A.There is no defense for Victorian harshness.
B.Parents are grateful to Freud for his advice.
C.Parents can be too strict with their children.
D.Child-care books prove sensible and practical.
第2题
由于异相型游梁式抽油机具有较大极位夹角,一般为()左右,使得抽油机悬点载荷不能与减速箱扭矩不能同时达到峰值,因而可使上电动机所需功率(),实现节能效果。
第3题
A.动载荷
B.曲柄转速
C.上冲程加速度
D.平衡效果
第4题
异相型游梁式抽油机由于平衡相位角改善了(),从而使减速器的扭矩峰值降低,扭矩变化较均匀,电动机功率减小,在一定条件下有节能效果。
A.动载荷
B.曲柄转速
C.上冲程加速度
D.平衡效果
第5题
第6题
第7题
前置型游梁式抽油机下冲程开始时,减速器输出扭矩()于油井负荷扭矩。
A.超前
B.滞后
C.同时
D.不确定
第8题
前置型游梁式抽油机上冲程开始时,减速器输出扭矩比油井负荷扭矩()。
A.超前
B.滞后
C.同时
D.不确定
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