题目内容

15.Some schools,including ours,will have to make        in agreement with the national soccer reform.(  )
A.amustmentsB.adjustmentsC.appointmentsD.achievemrnts

分析 一些学校(包括我们学校)必须做出调整以与国家的足球改革相适应.

解答 答案是B.本题考查名词词义辨析.A项表示"娱乐,娱乐活动";B项表示"调整";C项表示"约定,任命";D项表示"成就";make adjustments做调整;根据语境,为了与国家足球改革相适应进行"调整",所以答案选择B项,其它选项不符合逻辑.

点评 本题考查名词词义辨析,考生在平时的学习中应注意积累相应的词汇和搭配,并牢记其意思.在做题时,将词义和题干相结合,从语法、句子结构尤其是句意上去判断,句意通顺,符合逻辑,即正确答案.

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4.Conventional wisdom says that hardship can make us old before our time.In fact,a new study suggests that violence not only leaves long-term scars on children's bodies,but also changes their DNA,causing changes that are equal to seven to ten years of premature aging.
Scientists measured this by studying the ends of children's chromosomes(染色体),called telomeres,says Idan Shalev,lead author of a study published in Molecular Psychiatry.
Telomeres(端粒) are special DNA sequences (基因序列)which prevent the DNA in chromosomes from separating.They get shorter each time a cell divides,until a cell cannot divide any more and dies.
Several factors have been found to shorten telomeres,including smoking,radiation and psychological stresses such as being treated badly when young and taking care of a chronically(长期地) ill person.
In this study,researchers examined whether exposure to violence could make children's telomeres shorten faster than normal.They interviewed the mothers of 236 children at ages 5,7 and 10,asking whether the youngsters had been exposed to domestic violence between the mother and her partner; physical maltreatment by an adult; or bullying.Researchers measured the children's telomeres-in cells obtained by swabbing the insides of their cheeks-at ages 5 and 10.
Telomeres shortened faster in kids exposed to two or more types of violence,says Shalev.Unless that pattern changes,the study suggests,these kids could be expected to develop diseases of aging,such as heart attacks or memory loss,seven to 10 years earlier than their peers.
Shalev says there is hope for these kids.His study found that,in rare cases,telomeres can lengthen.Better nutrition,exercise and stress reduction are three things that may be able to lengthen telomeres,he says.
The study confirms a small but growing number of studies suggesting that early childhood adversity imprints itself in our chromosomes,says Charles Nelson,a professor of pediatrics and neuroscience at Harvard Medical School.

59.The new study found thatC.
A.hardship can change a child's aging
B.violence leaves scars on a child's mind
C.violence can speed up a child's aging
D.hardship has a long term effect on a child's mind
60.According to the text,telomeresB.
A.are at the ends of people's chromosomes
B.can help prevent DNA from separating
C.can make a cell die quickly
D.become shorter before they die
61.Which of the following is TRUE according to the text?C
A.Violence can cause quick cell division in children's body.
B.Researchers measured the children's telomeres from their legs in the study.
C.Being treated badly will make a child's telomeres shorten faster.
D.Children who have shorter telomeres may have a heart attack earlier.
62.What is the best title for the text?A
A.Violence Aging Children's DNA
B.Children's Changing DNA Patterns
C.Violence and Telomeres
D.The Function of Telomeres.

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