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At first in the l980s parents gave home—schooling to children for_____．

At first in the l980s parents gave home—schooling

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第1题

根据材料回答{TSE}题：第一篇 Genetic Engineering Genetic ehgineering began when the DNA mo

lecule(分子)，the most basic unit of life，was first described in l953 by James Watson and Francis Crick．An understanding of DNA led to the altering of normal cell reproduction．Experiments with altering human cells began in l970．In one of the first experiments，patients were injected with a virus that would produce a life—saving enzyme，but their bodies would not accept it．In l980 patients with a rare but fatal blood disease were injected with a purifled gene that was cloned through DNA technology．Another failure． Genetic engineering got a legal boost(激励)in l980．The U．S．Supreme Court said that a patent could be granted on a genetically engineered“oil—eating”bacterium(细菌)．This bacterium would help clean up oil spills．The ruling encouraged companies to invent new life forms，and three important medical products were quickly developed． Human interferon(干扰素)一a possible solution to some cancers and viral disease．A newly engineered bacterium produced human interferon as a by—product．This new product reduced the cost of interferon． Human growth hormone—for children whose bodies do not grow to normal height．An expensive growth hormone(荷尔蒙)was previously produced from human cadavers，but by changing the genetic make—up of the single—cell bacterium E．coli，and affordable growth hormone could be produced． Human insulin(胰岛素)一for the treatment of diabetes．People with diabetes used to rely on a beef-or pork—based product until l982．Now insulin can be manufactured by genetically altered bacteria． Advances in genetic engineering have continued，though they constantly must be weighted against the safety of procedures．There is clearly much more to discover． {TS}This passage is mainly about________．

A. the effects of altering cells

B. the human growth hormone

C. insulin resistance

D. U．S．Supreme Court rulings

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第2题

根据材料回答下列各题：第一篇 Genetic Engineering Genetic ehgineering began when the DNA m

olecule(分子)，the most basic unit of life，was first described in l953 by James Watson and Francis Crick．An understanding of DNA led to the altering of normal cell reproduction．Experiments with altering human cells began in l970．In one of the first experiments，patients were injected with a virus that would produce a life—saving enzyme，but their bodies would not accept it．In l980 patients with a rare but fatal blood disease were injected with a purifled gene that was cloned through DNA technology．Another failure． Genetic engineering got a legal boost(激励)in l980．The U．S．Supreme Court said that a patent could be granted on a genetically engineered“oil—eating”bacterium(细菌)．This bacterium would help clean up oil spills．The ruling encouraged companies to invent new life forms，and three important medical products were quickly developed． Human interferon(干扰素)一a possible solution to some cancers and viral disease．A newly engineered bacterium produced human interferon as a by—product．This new product reduced the cost of interferon． Human growth hormone—for children whose bodies do not grow to normal height．An expensive growth hormone(荷尔蒙)was previously produced from human cadavers，but by changing the genetic make—up of the single—cell bacterium E．coli，and affordable growth hormone could be produced． Human insulin(胰岛素)一for the treatment of diabetes．People with diabetes used to rely on a beef-or pork—based product until l982．Now insulin can be manufactured by genetically altered bacteria． Advances in genetic engineering have continued，though they constantly must be weighted against the safety of procedures．There is clearly much more to discover． This passage is mainly about________．

A.the effects of altering cells

B.the human growth hormone

C.insulin resistance

D.U．S．Supreme Court rulings

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第3题

社会主义初级阶段发展战略的战略部署大体分三步走，第一步是()

A.1990年实现国民生产总值比l980年翻一番，解决人民的温饱问题

B.到20世纪末，实现人均国民生产总值比1980年翻两番，使人民生活达到小康水平

C.到21世纪中叶，人均国民生产总值达到中等发达国家水平，人民生活比较富裕

D.到21世纪中叶，人均国民生产总值接近发达国家水平，人民生活十分富裕

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第4题

：“九五”是我国20世纪末最后一个五年发展计划，是实现我国现代化建设的第二步战略目标的关键性五年。“九五”期间，我国的改革与发展任重道远，不仅要初步建立起社会主义市场新体制，而且要顺利实现原定2000年国民生产总值比l980年翻两番，人民生活基本达到小康的目标。我国的经济快速发展还会持续到21世纪二三十年代。“九五”作为承前启后的阶段，在我国经济发展中处于极其重要的位置。这段话主要支持了这样一个论点（）。

A.“九五”是我国现代化建设第二步战略目标的关键时期

B.“九五”期间任重道远

C.“九五”在我国整体经济发展中处于承前启后的重要位置

D.“九五”目标宏伟远大

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第5题

在1970年到l980年之间，世界工业的能源消耗量在达到顶峰后下降，1980年虽然工业总产出量有显著提高，但工业的能源总耗用量却低于l970年的水平。这说明，工业部门一定采取了高效节能措施。最能削弱上述结论的是（）。

A.1970年前，许多工业能源的使用者很少注意节约能源

B.20世纪70年代，一大批能源密集型工业部门的产量急剧下降

C.工业总量的增长在1970年到1980年间低于1960至1970年间

D.20世纪70年代，许多行业从使用高价石油转向使用低价的替代物

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第6题

：亚洲并非棕榈树的原产地，在这儿传统上用手工为棕榈树传递花粉，这种办法使棕榈果实产量非常低。当l980年将作为棕榈花的有效授粉者而被熟知的象鼻虫引进亚洲后，棕榈的产量上升——在某些地区上升了50%——但在1984年急剧下降。以下哪一项如果是正确的，将对l984年产量的下降提出最好的解释？（）。

A.随着产量的上升同时需求下降，1980～1984年之间，棕榈果实的价格持续下跌

B.进口树经常比本地树树产量更大，因为进口树将它们的害虫与疾病留在它们本国的土地上

C.产量的迅速提高耗尽了培育果实的雌花生长需要的营养物质

D.在1980～1984年之间，亚洲象鼻虫的数量保持在相同的水平上

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第7题

亚洲并非棕榈树的原产地，在这儿传统上用手工为棕榈树传递花粉，这种办法使棕榈果实产量非常低。当l980年将作为棕榈花的有效授粉者而被熟知的象鼻虫引进亚洲后，棕榈的产量上升——在某些地区上升了50%——但在1984年急剧下降。以下哪一项如果是正确的，将对l984年产量的下降提出最好的解释？（）。

A.随着产量的上升同时需求下降，1980～1984年之间，棕榈果实的价格持续下跌

B.进口树经常比本地树树产量更大，因为进口树将它们的害虫与疾病留在它们本国的土地上

C.产量的迅速提高耗尽了培育果实的雌花生长需要的营养物质

D.在1980～1984年之间，亚洲象鼻虫的数量保持在相同的水平上

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第8题

Carefree, happy-go-lucky, and running wild are just some of the familiar phrases that come

to mind when we think about childhood. Most of us have a lovely picture of what life is like for children. What could children possibly have to worry about？ In the early l980's, many medical experts believed that children were unable to experience depression (忧郁). But the fact is that children do have plenty of cares. At least 2% of children under 12 struggle with depression and by teenage years this has risen to 5% or 1 in 20. That's at least one depressed child in every classroom.

Depression, whether in grown-ups or children, is poorly understood. Some children are more at risk, such as those who are ill or who come from a broken family. But there are also many simpler worries, such as exam fears. It's not always easy to notice depression in children, partly because they are not so able as adults to express their feelings and partly because they are more likely to act out their feelings with bodily actions. So while some children are clearly sad, quiet, and tearful, others may become troublesome, hurting or fighting with others.

If you are worried about your child, you should talk to your doctor and to your children's friends, too, to try to learn about their feelings. Medicine may be used, although less often than they are in grown-ups. But it's very important that efforts are also made to help children understand why they became depressed, how they can deal with the problems in their life, and how they can form. a more positive (正面的) opinion of their world. Support within the family can help problem solving (解决).

What was believed about children's life in the past？

A．It was full of happiness.

B．It was hard to control.

C．It was marked with depression.

D．It had few health problems.

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第9题

阅读材料，回答题。 Government Policies and EconomyWhile he was off on his l978 tour，Americ

阅读材料，回答题。

Government Policies and Economy

While he was off on his l978 tour，Americans were becoming disgusted with their lot as all“emerging second—class nation”，Wilson says．They began to see that incentives had to be restored to the economy．For instance，the capital gains tax was cut，an extraordinary turn—about．If it had been predicted before he went away in May，he would have said it was simply inconceivable as inconceivable as the prospect of Resorts going up1，000 percent．

This momentous transformation in the U．S．should soon bring about a huge bull market． In the l940s and l950s，the last time price earning multiples were at these low levels，the investing public expected that there would be another great postwar depression．Instead，aRer the beginning of l953 it became apparent that there would not be one，and price-earnings multiples got so low this time that investors felt that the country was drifting into socialism．That drift，however，may be reversing direction．

Wilson believes that the bankruptcy of New York City means the discrediting of big government，that as a result there will be less government，and that things in general will go much better．From l980’s depressed levels the market could rise to twenty times doubled earnings or almost fivefold in five to seven years．Wilson believes that he’ll be worth hundreds of millions of dollars before it’s over．

From paragraph l，we can infer that Resorts is__________．查看材料

A.a company that involves many capital gains

B.a company that has little hope of rapid growth

C.a company that benefited from capital gains tax

D.a company that stimulates the economy

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第10题

The principle for first aid is（）.

A.First aid

B.First help

C.First saving

D.Immediate action