题目内容
（请给出正确答案）
Compared with parents of 30 years ago, today's parents ()．
A． go to clubs more often with their children
B． are much stricter with their children
C． care less about．their children's life
D． give their children more freedom
安装简答题APP，拍照搜题省时又省心！
更多“Compared with parents of 30 ye…”相关的问题
A．They studied variations in the appearance of the parent stars.
B．They were able to see the planets with a telescope.
C．They compared the parent stars to the Sun.
D．They sent astronauts on a mission into space.
A．They studied variations in the appearance of the parent stars.
B．They compared the parent stars to the Sun.
C．They were able to see the planets with a telescope.
D．They sent astronauts on a mission into space.
A、far fewer double-crossover recombinant progeny were recovered from a testcross than would be expected from the map distances of the genes involved.
B、crossing over has been enhanced for genes that are located near the centromere of chromosomes because there is less interference of one crossover on the occurrence of a second crossover event.
C、single-crossover recombinant classes in the progeny have been increased because the genes involved produce lethal phenotypes when in parental gene combinations.
D、there is a large map distance between one of the outside genes in the heterozygous parent and the middle gene, while there is a short map distance between the middle gene and the other outside gene.
E、the physical distance between two genes is very short compared with the genetic map distance between these two genes.
【M1】
Kenneth Keniston, chairman of the Carnegie Council on Children, has referred to television as the "flickering blue parent occupying more of the waking hours of American children than any other single influence -- including both parents and schools". Singer and Singer have characterized it as "a member of the family".
How much television and what kinds of programs do children watch？ The answer depends on many factors, including children's age and season of the year. According to Winick and Winick, school-age children watch television between seventeen and thirty hours a week. For preschool children it is often as high as fifty four hours a week. Nancy 'Larrick, a reading specialist and children' s author, has pointed out that "by the time the child goes to kindergarten, he or she will have devoted more hours to watching television than a college student spends in tour years of classes... And by the time the youngster graduates from high school, he or she will have spent roughly 11,000 hours in school compared to more than 22,000 hours in front of television."
Children are not just watching so-called children' s programs. On the contrary, according to figures re- leased by the A.C. Nielsen Company, only 13 percent of television viewing among six-to-eleven-year-old children occurs on Saturday between eight A.M. and one P.M.. The largest portion of their viewing, 33 percent, takes place between eight and eleven P.M. Monday through Saturday and between seven and eleven P.M. on Sunday.
Who selects the programs that children watch？ According to Bower, when mothers and children watch together, the mother makes selections in 37 percent of the cases; joint decisions occur 27 percent of the time; 33 percent of the time children decide by themselves. In a study by Lyle and Hoffman, over 60 of mothers of first-graders reported that they placed no restrictions on the amount of time they permitted their children to watch television.
Teachers, schools, and parent associations have become increasingly concerned about the effects of television on school performance. Based on their class-room experiences, many teachers have reported mounting incidences of fatigue, tension, and aggressive behavior, as well as lessened spontaneity and imagination.
The author uses the "flickering blue parent" in Para. 2 to imply that_____.
A．television is very kind and gentle
B．television is like loving parents
C．television occupies too much time of children
D．parents should learn from television
In 1950 some research workers in America discovered that languages change at a steady rate through the centuries. They organized their investigation in the following ways. First, they prepared a list of 200 things for which there are common words in every language. Then they compared these words in modern languages with the ancient languages from which the modem ones had developed. They found that for a certain proportion of the 200 things, the ancient words continued to be used, though written or pronounced differently. But in other cases the ancient words had been replaced by new words which had been introduced into the language.
After a thousand years, on the average, 81% of the old words (162 of the 200 words) were still in use. After 2000 years, on the average, 81% of these 162 words (or 66% of the original to tal of 200) remained. After 3000 years, 81% of these 131 words (or 53% of the original number) remained in use, and so on.
Next this group of research workers investigated situations where two different languages had developed separately and independently, from the same ancient language, (In modern times, of course, such situations are very unlikely to occur. Why？) They found that after 1,000 years, as be fore, each daughter language shared only 66% of the basic 200-word vocabulary. Each daughter language, as before, derived 81% of its 200 words from the original parent language. But (as you might expect) the words which they kept were not quite the same. The proportion of words actually shared by the daughter languages was therefore 81% of 81%, which is 66% of the original 200 words. After 2000 years they shared 66% of 66% of the words, i.e. 43% of the original vocabulary. And after 3000 years they shared only 29% of the original vocabulary.
A long time ago, some Eskimos, speaking the Eskimo language, left the mainland of Alaska and began to live in a group of islands (called the Aleutian Islands) at some instance from the coast. Recently, research workers compared the islander's language with the modern Eskimo language. They found that the Aleutians and the Eskimos shared only 29% of the words, on the stand ard list. From this fact the investigators were able to calculate the date of the event referred to at the beginning of this paragraph.
From the passage, we can infer that language clock is ______.
A．a mechanic clock
B．a figurative clock
C．an electronic clock
D．a diamond clock
A.Single mums produce stronger sons.
B.Single mums do not produce daughters.
C.Two-parent families produce less attractive children.
D.Two-parent families produce more beautiful offspring.
The finding shows that family conflict is as important an evolutionary driving force as ecological factors such as hunting and food supply. With two parents around, there's always a conflict of interests, which can have a detrimental effect on the quality of the offspring.
In evolutionary terms, the best strategy for any parent in the animal world is to find someone else to care for their offspring, so they can concentrate on breeding again. So it's normal for parents to try to pass the buck to each other. But Ian Hartley from the University of Lancaster and his team wondered how families solve this conflict, and how the conflict itself affects the offspring.
To find out, they measured how much effort zebra finch parents put into raising their babies. They compared single females with pairs, by monitoring the amount of food each parent collected, and removing or adding chicks so that each pair of birds was raising four chicks, and each single mum had two—supposedly the same amount of work.
But single mums, they found, put in about 25 per cent more effort than females rearing with their mate. To avoid being exploited, mothers with a partner hold back from working too hard if the rather is being lazy, and it's the chicks that pay the price. "The offspring suffer some of the cost of this conflict," says Hartley.
The cost does not show in any obvious decrease in size or weight, but in how attractive they arc to the opposite sex. When the chicks were mature, the researchers tested the "fitness" of the male offspring by offering females their choice of partner. Those males reared by single mums were chosen more often than those from two-parent families.
Sexual conflict has long been thought to affect the quality of care given to offspring, says zoologist Rebecca Kilner at Cambridge University, who works on conflict of parents in birds. "But the experimental evidence is not great. The breakthrough here is showing it empirically."
More surprising, says Kilner, is Hartley's statement that conflict may be a strong influence on the evolution of behaviour, clutch size and even appearance. "People have not really made that link," says Hartley. A female's reproductive strategy is usually thought to be affected by hunting and food supply. Kilner says conflict of parents should now be taken into account as well.
With which of the following statements would the author probably agree？
A．Single mums produce stronger sons.
B．Single mums do not produce daughters.
C．Two-parent families produce less attractive children.
D．Two-parent families produce more beautiful offspring.
Children and Parents
Do parents owe their children something？ Yes, they owe them a great deal.
One of their chief obligations is to give their children a sense of personal worth, for self-esteem is the basis of good mental health. A youngster(青少年)who is constantly made to feel stupid and unworthy, constantly compared to brighter brothers, sisters, or cousins, will become so unsure that he (or she) won't try at all. Of course, they should be corrected when they do wrong; this is the way children learn. But the criticisms should be balanced with praises, perhaps with a smile and a kiss. No child is ever too old to be hugged(拥抱).
Parents owe their children firm guidance and consistent discipline. It is frightening for a youngster to feel that he is in charge of himself; it's like being in a car without brakes(制动器,刹车). The parent who says "no" when other parents say "yes" sends a double message. He is also saying: "I love you, and I am ready to risk your anger, because I don't want you to get into trouble."
Parents owe their children a comfortable feeling about their body, and enough information about sex to balance the misinformation that they will surely receive from their friends. Parents owe their children a set of solid values around which to build their lives. This means teaching them to respect the rights and opinions of others; it means being respectful to eiders, to teachers, and to the law. The best way to teach such values is by example. A child who is lied to will lie. A child who sees his parents steal tools from the factory will think that it is all right to steal.
If parents want a child to grow up well, they should ______.
A．tell the child that other children are doing much better than him/her
B．remind the child that he/she is not bright
C．tell the child he/she is just a grass that people won't notice
D．help the child to build up self-confidence
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
微信搜一搜
简答题
微信搜一搜
简答题
如搜索结果不匹配，请 
