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回答题 Extinction is difficult concept to grasp．It is an（26）concept．It&39;s not at all lik

回答题

Extinction is difficult concept to grasp．It is an（26）concept．It&39;s not at all like the killing of individual lifeforms that can be renewedthrough normal processes of reproduction．Nor is it simply （27）numbers．Nor is it damage that can somehow be remedied or for which some substitute can be ound．Nor is it something that simply affects our own generation．Nor is it something that could be remedied by some supernatural power．It is rather an（28）and final act for which there is no remedy

on earth or in heaven．A species once extinct is gone forever．However many generations（29）us in coming centuries, none of them will ever see this species that we extinguish．Not only are we bringing about the extinction of life（30）, we are also making the land and the air and the sea so toxic that the very conditions of life are being destroyed．（31）basic natural resources, not only are the nonrenewable resources being（32）in a frenzy (疯狂) of processing,consuming, and（33）, but we are also mining much of our renewable resources, such as the very soil itself on which terrestrial (地球上的) life depends．

The change that is taking place on the earth and in our minds is one of the greatest changes ever to take place in human affairs, perhaps the greatest, since what we are talking about is not simply another historical change or cultural（34）, but a change of geological and biological as well as psychological order of（35）

第（26）题查看材料

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发布时间：2020-01-06

更多“回答题 Extinction is difficult concept to grasp．It is an（26）concept．It&39;s not at all lik”相关的问题

第1题

Cloning, a Frightening Thing？ Key Words: cloning, scientific breakthrough, identical copy, cure, di

Cloning, a Frightening Thing？

Key Words: cloning, scientific breakthrough, identical copy, cure, disease, extinction, worry about, human cloning

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第2题

回答题：One Good Reason to Let Smallpox LiveIt"s now a fair bet that we will never see the

回答题：

One Good Reason to Let Smallpox Live

It"s now a fair bet that we will never see the total extinction of the smallpox virus. The idea was to cap the glorious achiew~"ment of 1980， when smallpox was eradicated in the wild， by destroying the killer virus in the last twe labs that are supposed to have it——one in the US and one in Russia. If smallpox had truly gone from the planet， what point was there in keeping these reserves？__________（51） reality， of course， it was naive to __________（52） that everyone would let__________（53） of such a potent potential weapon.Undoubtedly several nations still have__________（54） vials.__________（55） the last "official" stocks of live virus bred mistrust of the US and Russia， __________（56） no obvious gain.

Now American researchers have__________ （57） an animal model of the human disease， opening the __________（58 ） for tests on new treatments and vaccines. So once again there"s a good reason to __________（59） the virus——just in "__________（60） the disease puts in a reappearance.

How do we __________ （61） with the mistrust of the US and Russia？__________（62） . Keep the virus __________（63） international auspices in a well-guarded UN laboratory that"s open to all countries. The US will object， of course， just at it rejects a multilateral approach to just about everything. But it doesn"t __________（64） the idea is wrong. If the virus __________（65） useful， then let"s make it the servant of all humanity——not just a part of it.

材料题请点击右侧查看材料问题查看材料

A.For

B.At

C.On

D.in

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第3题

根据以下材料，回答题Older Volcanic EruptionsVolcanoes were more destructive in ancient hist

根据以下材料，回答题

Older Volcanic Eruptions

Volcanoes were more destructive in ancient history， not because they were bigger， but because the carbon dioxide they released wiped out life with greater ease.

Paul Wignall from the University of Leeds was investigating the link between volcanic eruptions and mass extinctions. Not all volcanic eruptions killed off large numbers of animals， but all the mass extinctions over the past 300 million years coincided with huge formations of volcanic rock. To his surprise， the older the massive volcanic eruptions were， the more damage they seemed to do. He calculated the "killing efficiency" for these volcanoes by comparing the proportion of life they killed off with the volume of lava that they produced. He found that for size， older eruptions were at least 10 times as effective at wiping out life as their more recent rivals.

The Permian extinction， for example， which happened 250 million years ago， is marked by floods of volcanic rock in Siberia that cover an area roughly the size of western Europe. Those volcanoes are thought to have pumped out about 10 gigatones of carbon as carbon dioxide. The global warming that followed wiped out 80 percent of all marine genera at the time， and it took 5 million years for the planet to recover. Yet 60 million years ago， there was another huge amount of volcanic activity and global warming but no mass extinction. Some animals did disappear but things returned to normal within ten thousands of years. "The most recent ones hardly have an effect at all，" Wignall says. He ignored the extinction which wiped out the dinosaurs 65 million years ago， because many scientists believe it was primarily caused by the impact of an asteroid. He thinks that older volcanoes had more killing power because more recent life forms were better adapted to dealing with increased levels of CO2.

Vincent Courtillot， director of the Paris Geophysical Institute in France， says that Wignall"s idea is provocative. But he says it is incredibly hard to do these sorts of calculations. He points out that the killing power of volcanic eruptions depends on how long they lasted. And it is impossible to tell whether the huge blasts lasted for thousands or millions of years. He also adds that it is difficult to estimate how much lava prehistoric volcanoes produced， and that lava volume may not necessarily correspond to carbon dioxide emissions.

Why did older volcanic eruptions do more damage than more recent ones？查看材料

A.Because they killed off life more easily.

B.Because they were brighter.

C.Because they were larger.

D.Because they were hotter.

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第4题

回答题"Family" is of course an elastic word．And in different countries it has di

回答题

"Family" is of course an elastic word．And in different countries it has different meanings．Butwhen British people say that their society is based on family life, they are thinking of "family" in itsnarrow, peculiarly European sense of mother, father and children living together in their own houseas an economic and social unit．Thus, every British marriage indicates the beginning of a new andindependent family--hence the tremendous importance of marriage in British life．For both man andwoman, marriage means leaving one&39; s parents and starting one&39; s own life．The man&39; s first dutywill then be to his wife, and the wife&39; s to her husband．He will be entirely responsible for her finan-cial support, and she for the running of the new home．Their children will be their common responsi-bility and their alone．Neither the wife&39; s parents nor the husband&39; s, nor their brothers or sisters,aunts or uncles, have any right to interfere with them--they are their own masters．

Readers of novels like Jane Austen&39; s Pride and Prejudice will know that in former times, mar-riage among wealthy families were arranged by the girl&39; s parents, that is, it was the parents&39; duty tofind a suitable husband for their daughter, preferably a rich one, and by skillful encouragement tolead him eventually to ask their permission to marry her．Until that time, the girl was protected andmaintained in the parents&39; home, and the fmancial relief of getting rid of her could be seen in theirgiving the newly married pair a sum of money called a dowry(嫁妆)．It is very different today．

Most girls of today get a job when they leave school and become financially independent before theirmarriage．This has had two results．A girl chooses her own husband, and she gets no dowry．Everycoin has two sides; independence for girls is no exception．But it may be a good thing for all of thegirls, as their social status are much higher and they are no longer the subordinate(部下，下级) oftheir parents and husbands．

What does the author mean by "Family is of course an elastic word"？查看材料

A.Different families have different ways of life．

B.Different definitions could be given to the word．

C.Different nations have different families．

D.Different times produce different families．

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第5题

根据材料，回答题。 What Makes a Soccer Player Great？Soccer is played by millions of people a

根据材料，回答题。

What Makes a Soccer Player Great？

Soccer is played by millions of people all over the world， but there have only been few players who were truly great. How did these players get that way was it through training and practice， or are great players "born， not made" ？ First. these players came from places that have had famous stars in the past players that a young boy can look up to and try to imitate. In the history of soccer， only six Countries have ever won the World Cup three from South America and three from western Europe. There has never been a great national team or a really great player——from North America or from Asia. Second. these players have all had years of practice in the game.

Alfredo Di Stefano was the son of a soccer player， as was Pele. Most players begin playing the game at the age of three or four.

Finally. many great players come from the same kind of neighborhood a poor， crowded area where a boy"s dream is not to be a doctor， lawyer， or businessman， but to become a rich， famous athlete or entertainer. For example， Liverpool. which produced the Beetles， had one of the bestEnglish soccer teams in recent years. Pele practiced in the street with a "ball" made of rags. AndGeorge Best learned the tricks that made him famous by bouncing the ball off a wall in the slumsof Belfast.

All great players have a lot in common， but that doesn"t explain why they are great.

Hundreds of boys played in those Brazilian streets， but only one became Pele. The greatest play-ers are born with some unique quality that sets them apart from all the others.

According to the author， which of the following statements is true？查看材料

A.Great soccer players are born， not made.

B. Truly great players are rare.

C. Only six countries have ever had famous soccer stars.

D. Soccer is the least popular sport in North America and Asia.

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第6题

下列的哪个信号是收端回送给发端的？（)

A.AIS

B.LCK

C.IAE

D.B/DI

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第7题

当对本端ODUk信号下插LCK时，下游站点不会进行哪个处理？（)

A.上报 ODUk_PM_LCK告警

B.下插0DUk_AIS信息

C.回传 ODUk_PM_B/DI

D.下插 ODUk_PM_LCK告警

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第8题

CPI100R/155R变频器在输入回路上串入了K01/K02接触器主触点，这样做的目的是（)。

A.通过K01及串接的电阻器限制充电电流

B.防止出现很大的di/dt引起整流部件损坏

C.互锁保护

D.符合国标安全性要求

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第9题

根据所给资料，回答题。查看材料 A.36B.39C.42D.45

根据所给资料，回答题。根据所给资料，回答题。查看材料 A.36B.39C.42D.45根据所给资料，回答题。查看材料查看材料

A.36

B.39

C.42

D.45

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