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第二篇The idea of test-tube babies may make you starry-eyed with delight at the wonders of

第二篇

The idea of test-tube babies may make you starry-eyed with delight at the wonders of modern medicine or bleary-eyed with considering the moral/legal implications of starting life in a laboratory. But if you've ever been pregnant(怀孕)yourself, one thing is certain: You wonder what it's like to carry a test-tube baby. Are these pregnancies normal？ Are the babies normal？

The earliest answers come from Australia, where a group of medical experts at the Queen Victoria Medical Center in Melbourne have taken a look at the continent's first nine seemed to proceed according to plan, but at birth some unusual trends did show up. Seven of the nine babies turned out to be girls. Six of the nine were delivered by Caesarean section(剖腹产术). And one baby, a twin, was born with a serious heart defect and a few days later developed life-threatening abdominal problems.

What does it all mean？ Even the doctors don't know for sure, because the numbers are so small. The proportion of girls to boys is high, but until there are many more test-tube babies no one will know whether that's pure coincidence(巧合)or something special. The same thing is true of the single heart defect; it usually shows up in only 15 out of 60,000 births in that part of Australia, but the fact that it occurred in one out of nine test-tube babies does not necessarily mean that they are at special risk. One thing the doctors can explain is the high number of Caesareans.

The Australian researchers report that they are quite encouraged. All the babies are now making nomal progress--even the twin with the birth defects.

The passage imples that the first test-tube babies were born in______.

A. Canada

B. Britain

C. America

D. Australia

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更多“第二篇The idea of test-tube babie…”相关的问题

第1题

test-测试标题

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第2题

A320机组反映地面起动过程中有：PACK 1 REGUL FAULT警告。在地面怎么读取代码（）

A.通过MCDU->CFDS->SYSTEM REPORT/TEST->AIRCOND-> TEMP CTL

B.通过MCDU->CFDS->SYSTEM REPORT/TEST->AIRCOND-> AEVC

C.通过MCDU->CFDS->SYSTEM REPORT/TEST->AIRCOND-> AFT CHC

D.通过MCDU->CFDS->SYSTEM REPORT/TEST->AIRCOND-> CPC

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第3题

第二篇A new international study shows that six people die every minute from smoking. That

第二篇

A new international study shows that six people die every minute from smoking. That equals 3 million deaths around the world every year. If the present rate (率)of smoking continues, the number of deaths each year from smoking could rise to 10 million by the year 2020.

The study describes smoking as the biggest cause to deadly diseases among grown-ups in industrial countries. So far most of the smoking deaths have happened on men, especially in developing countries.

A researcher at the World Health Organization says 70% of Chinese men smoke more than 15 cigarettes each day. In Latin America about 50% of the men are smokers. There also is a very large number of smokers in the former Soviet Union(苏联)and in the east Europe. And 25% of all smoking deaths worldwide are in those areas of the world. Scientists say smoking will kill 50% of the countries.

Smoking is known to cause lung cancer. It also can lead to cancer of the mouth and other parts of bodies. Smokers are more likely than non-smokers to suffer from heart disease.

Experts say that people reduce their chance of dying from smoking if they stop smoking completely. They say smokers who give up smoking can improve their health.

The main idea of this passage is that ______.

A. we must give up smoking

B. smoking causes lung caner

C. smoking does harm to health

D. men like smoking much more than women

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第4题

第二篇 Energy and Public Lands The United States boasts substantial energy resource

第二篇 Energy and Public Lands

The United States boasts substantial energy resources. Federal lands provide a good deal of US energy production, the US Department of the Interior manages federal energy leasing(租赁) both on land and on the offshore Outer Continental Shelf Production from these sources amounts to nearly 30 percent of total annual US energy production.

In 2000, 32 percent of US oil, 35 percent of natural gas, and 37 percent of coal were produced from federal lands, representing 20,000 producing oil and gas leases and 135 producing coal leases. Federal lands are also estimated to contain approximately 68 percent of all undiscovered US oil reserves and 74 percent of undiscovered natural gas.

Revenues from federal oil, gas, and coal leasing provide significant returns to US taxpayers as well as State Government. In 1999, for example, $553 million in oil and gas revenues were paid to the US Treasury, and non-India coal leases accounted for over $304 million in revenues, of which 50 percent were paid to State governments. Public lands also play a critical role in energy delivery. Each year, federal land managers authorize rights of way for transmission lines, rail systems, pipelines, and other facilities related to energy production and use.

Alternative energy production from federal lands falls behind conventional energy production, though the amount is still significant. For example, federal geothermal(地热) resources produce about 7.5 billion kilowatt-hours(千瓦时) of electricity per year, 47 percent of all electricity generated from US geothermal energy. There are 2,960 wind turbines on public lands in California alone, producing electricity for about 300,000 people. Federal hydropower facilities produce about 17 percent of all hydropower produced in the United States.

Because of the growing US thirst for energy and increasing public unease with influence on foreign off sources, pressure on public lands to meet US energy demand is becoming more intense. Public lands are available for energy development only after they have been evaluated through the land use planning process. If development of energy resources conflicts with management or use of other resources, development restrictions or impact moderation measures may be enforced, or mineral be banned altogether.

36 What is the main idea of this passage？

A Public lands play an important role in energy production.

B Public lands are one of the main sources of revenues.

C Public lands should be developed to ease energy shortage.

D Public lands store huge energy resources for further development.

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第5题

第二篇Fortunately there are still a few tasty things for us to enjoy in relative security.

第二篇

Fortunately there are still a few tasty things for us to enjoy in relative security. Their numbers, however, are depleted almost daily, it seems, by ruthless proclaimations from the ever-watchful Food and Drug Administration and its allies, our doctors, The latest felon(重罪犯) to face prosecution is the salt of life, sodium chloride(食盐).

Apparently, overuse of salt causes high blood pressure and hypertension, the cause of half the deaths in the United States every year. A few years ago the anti-salt campaigners raised such an uproar that salt was banned from baby food. Currently pressure is being applied to food manufacturers to oblige them to label their products to show sodium content. Because doing so would cost manufacturers money, they argue that they have no idea how much salt remains on such things as potato chips and how much sticks to the bag. Furthermore, salt isn't the only harmful ingredient in food. If the manufacturer has to provide sodium content, why not require him to list every ingredient and specify which are harmful to our health？ Cigarettes have a warning printed on them. Shouldn't the same type of warning appear on canned foods that are notoriously over- salted？

There are endless ifs and buts in the controversy, but the most telling of these is the questionable proof of salt's effect upon the blood pressure. True, people who cut their salt intake lowered their blood pressure, but where is the scientific proof that something other than salt didn't do the trick？ The most common means of providing dubious proof that salt causes hypertension is to compare societies that use little salt with those that use mountains of salt in their daily diets. Which group has the higher rate of hypertension？ Whose blood pressure is lower？ What happens when salt is introduced into a group where salt is a novelty？ Does the blood pressure rise significantly？ Studies of the Japanese indicate that as the world's greatest salters, they suffer the most from hypertension. On the other hand, the simple, salt-free cooking of several tribes in the Solomon Islands has kept older tribesmen and women from developing hypertension and high blood pressure, ailments traditionally killing their peers in America. No account is taken of the effects of inflation, recession, pollution, crime, and sundry (多种多样的) other ills to which Americans, unlike people on primitive islands, are exposed.

To salt or not to salt？ That is the question. Now that the question has arisen, it must not be treated with levity(轻率) but, rather, with searching scientific investigation so that those of us who are preoccupied with both savory(薄荷) food and longevity may decide which of the two is worth its salt.

The attitude of the author of this passage toward the salt controversy is that______。

A. we must stop eating salt immediately

B. she is not convinced that salt is harmful

C. the Food and Drug Administration works well with doctors

D. soon there won't be anything tasty left to eat

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第6题

听力原文： France has carried out another underground nuclear test in the South Pacific. It

is the fifth in the region since September. The test was conducted at the Moruroa atoll on Wednesday. Paris has come under strong criticism for its nuclear testing programme, especially from Asia-Pacific countries. A State Department spokeswoman in Washington expressed disappointment at the latest French test. France has promised to sign a global test- ban treaty after it completes its current series of nuclear tests in the Pacific.

According to the news, France was strongly criticized for______.

A．conducting five nuclear tests on Wednesday.

B．carrying out a series of nuclear tests in the Pacific.

C．getting disappointing results in the nuclear program.

D．refusing to sign a global treaty banning nuclear tests.

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第7题

第二篇：第36题：

第二篇：

第二篇：第36题：第二篇：第36题：

第二篇：第36题：第二篇：第36题：请帮忙给出正确答案和分析，谢谢！

第36题：

第二篇：第36题：第二篇：第36题：请帮忙给出正确答案和分析，谢谢！

请帮忙给出正确答案和分析，谢谢！

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第8题

11：第二篇Listening Comprehension: Where was the man going？A.Moscow.B.London.C.Hong Kong.D

11：第二篇Listening Comprehension: Where was the man going？

A.Moscow.

B.London.

C.Hong Kong.

D.Heathrow.

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第9题

《孟子》第二篇的篇名是（)。

A.《公孙丑》

B.《滕文公》

C.《尽心》

D.《离娄》

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