The faster anything is thrown into the sky, ____.
A.it goes the higher
B.the higher it goes
C.the more highly it goes
D.it goes the more highly
A.it goes the higher
B.the higher it goes
C.the more highly it goes
D.it goes the more highly
第1题
听力原文:M: Have you ever looked really closely at the snowflake?
W: Sure, but they usually melt too fast for me to get a close look. Why do you ask?
M: I'm just curious. I was reading an article about the formation of snowflakes, and I real- ized that I had never paid much attention to them before.
W: WeI1, there is a big variety, isn't there?
M: Yes, but they all have one of the three basic forms: hexagonal columns, thin hexagonal plates and the blanching starshaped form.
W: I wonder why are forms different, maybe because ice starts to form. on dust particles with different shape.
M: Well, I thought it might have something, to do with the water saturation of the air. But we're both wrong. The author of this article did extensive research and concluded that. the shapes of snow crystals largely controlled by the temperature of the air. For example, the featherly star-shaped snowflake that everyone thinks is typical occurs only at a specific temperature.
W: Doesn't the relative humidity has anything to do with the shapes?
M: Apparently not. The effect of super saturation is simply to alter the growth rate. The greater the saturation, the faster the snowflakes form.
W: Why, next time when it snows. I'll make a point of taking a close look.
What are the people discussing?
A.Whether or not snowflakes can be analyzed.
B.How snowflakes are formed.
C.What causes a snowstorm.
D.Where the largest snowflakes can be found.
第2题
Newspapers have one basic 【24】______ , to get the news as quickly as possible from its source, from those who make it to those who want to 【25】______ it.
Radio, telegraph, television, and 【26】______ inventions brought competition for newspapers. So did the development of magazines and other means of communication. 【27】______ , this competition merely spurred the newspapers on. They quickly made use of the newer and faster means of communication to improve the 【28】______ and thus the efficiency of their own operations. Today more newspapers are 【29】______ and read than ever before. Competition also led newspapers to branch out into many other fields. Besides keeping readers 【30】______ of the latest news, today's newspapers 【31】______ and influence readers about politics and other important and serious matters.
Newspapers influence readers' economic choices 【32】______ advertising. Most newspapers depend on advertising for their very 【33】______ .
Newspapers are sold at a price that 【34】______ even a small fraction of the cost of production. The main 【35】______ of income for most newspapers is commercial advertising. The 【36】______ in selling advertising depends on a newspaper's value to advertisers. This 【37】______ in terms of circulation. How many people read the newspaper?
Circulation depends 【38】______ on the work of the circulation department and on the services or entertainment 【39】______ in a newspaper's pages. But for the most part, circulation depends on a newspaper's value to readers as a source of information 【40】______ the community, city, county, state, nation, and world and even outer space.
【21】
A.Just when
B.While
C.Soon after
D.Before
第3题
Newspapers have one basic【C4】______, to get the news as quickly as possible from its source, from those who make it to those who want to【C5】______it. Radio, telegraph, television, and【C6】______inventions brought competition for newspapers. So did the development of magazines and other means of communication.【C7】______, this competition merely spurred the newspapers on. They quickly made use of the newer and faster means of communication to improve the【C8】______and thus the efficiency of their own operations. Today more newspapers are【C9】______and read than ever before. Competition also led newspapers to branch out to many other fields. Besides keeping readers【C10】______of the latest news, today's newspapers【C11】______and influence readers about politics and other important and serious matters. Newspapers influence readers' economic choices【C12】______advertising. Most newspapers depend on advertising for their very【C13】______. Newspapers are sold at a price that【C14】______even a small fraction of the cost of production. The main【C15】______of income for most newspapers is commercial advertising. The【C16】______in selling advertising depends on a newspaper's value to advertisers. This【C17】______in terms of circulation. How many people read the newspaper? Circulation depends【C18】______on the work of the circulation department and on the services or entertainment【C19】______in a newspaper's pages. But for the most part, circulation depends on a newspaper's value to readers as a source of information【C20】______the community, city, country, state, nation, and world—and even outer space.
【C1】
A.Just when
B.While
C.Soon after
D.Before
第4题
Newspapers have one basic【C4】______, to get the news as quickly as possible from its source, from those who make it to those who want to【C5】______it. Radio, telegraph, television, and other inventions brought【C6】______for news papers. So did the development of magazines and other means of communication.【C7】______, this competition merely spurred the news papers on. They quickly made use of the newer and faster means of communication to improve the【C8】______and thus the efficiency of their own operations. Today more newspapers are【C9】______and read than ever before. Competition also led newspapers to branch out to many other fields. Besides keeping readers【C10】______of the latest news, today' s newspapers【C11】______and influence readers about politics and other important and serious matters. Newspapers influence readers ' economic choices【C12】______advertising Most newspapers depend on advertising for their very【C13】______. Newspapers are sold at a price that【C14】______to cover even a small fraction of the cost of production. The main【C15】______of income for most newspapers is commercial advertising. The【C16】______in selling advertising depends on a newspaper' s value to advertisers. This is measured in【C17】______of circulation. How many people read the news paper? Circulation depends【C18】______on the work of the circulation department and on the services or entertainment【C19】______in a newspaper' s pages. But【C20】______the most part, circulation depends on a newspaper' s value to readers as a source of information about the community, city, country, state, nation, and world--and even outer space.
【C1】
A.Just when
B.While
C.Long after
D.Before
第5题
In the past, epidemics spread much faster than at present.
A.Y
B.N
C.NG
第6题
Snorted substances reach the brain faster than injected substances.
A.Y
B.N
C.NG
第7题
Almost obscured by this torpor is the fact that there has been some remarkable progress over the past five years—real changes in the attitude of ordinary people in the Third World toward family size and a dawning realisation that environmental degradation and their own well-being are intimately,and inversely,linked.Almost none of this,however, has anything to do with what the bureaucrats accomplished in Rio.
Or it didn't accomplish.One item on the agenda at Rio,for example,was a renewed effort to save tropical forests.(A previous UN-sponsored initiative had fallen apart when it became clear that it actually hastened deforestation.)After Rio,a UN working group came up with more than 100 recommendations that have so far gone nowhere.One proposed forestry pact would do little more than immunizing wood-exporting nations against trade sanctions.
An effort to draft an agreement on what to do about the climate changes caused by CO2 and other greenhouse gases has fared even worse.Blocked by the Bush Administration from setting mandatory limits,the UN in 1992 called on nations to voluntarily reduce emissions to 1990 levels.Several years later,it's as if Rio had never happened.A new climate treaty is scheduled to be signed this December in Kyoto,Japan,but governments still cannot agree on these limits.Meanwhile,the U.S. produces 7% more CO2 than it did in 1990,and emissions in the developing world have risen even more sharply.No one would confuse the“Rio process”with progress.
While governments have dithered at a pace that could make drifting continents impatient,people have acted.Birth-rates are dropping faster than expected,not because of Rio but because poor people are deciding on their own to reduce family size.Another positive development has been a growing environmental consciousness among the poor.From slum dwellers in Karachi,Pakistan,to colonists in Rondonia,Brazil,urban poor and rural peasants alike seem to realize that they pay the biggest price for pollution and deforestation.There is cause for hope as well in the growing recognition among business people that it is not in their long-term interest to fight environmental reforms.John Browne,chief executive of British Petroleum,boldly asserted in a major speech in May that the threat of climate change could no longer be ignored.
The writer's general attitude towards the world leaders meeting at the UN is______.
A.supportive
B.impartial
C.critical
D.comedic
第8题
第11题
根据以下材料,回答题
Toads Are Arthritis and in Pain
Arthritis is an illness that can cause pain and swelling in your bones. Toads, a big problem in the north of Australia, are suffering from painful arthritis in their legs and backbone, a new study has shown.
The toads that jump the fastest are more likely to be larger and to have longer legs.__________ (46)
The large yellow toads, native to South and Central America, were introduced into the north-eastern Australian state of Queensland in 1935 in an attempt to stop beetles and other insects from destroying sugarcane crops. Now up to 200 million of the poisonous toads exist in the country,and they are rapidly spreading through the state of Northern Territory at a rate of up to 60 km a year.
The toads can now be found across more than one million square kilometers. __________ (47) A Venezuelan poison virus was tried in the 1990s but had to be abandoned after it was found to also kill native frog species.
The toads have severely affected ecosystems in Australia. Animals, and sometimes pets, that eat the toads die immediately from their poison, and the toads themselves eat anything they can fit inside their mouth. __________ (48)
A co-author of the new study, Rick Shine, a professor at the University of Sydney, says that little attention has been given to the problems that toads face. Rick and his colleagues studied nearly 500 toads from Queensland and the Northern Territory and found that those in the latter state were very different. They were active, sprinting down roads and breeding quickly.
According to the results of the study, the fastest toads travel nearly one kilometer a night.__________(49) But speed and strength come at a price——arthritis of the legs and backbone due to constant pressure placed on them.
In laboratory tests, the researchers found that after about 15 minutes of hopping, arthritic toads would travel less distance with each hop (跳跃) . __________ (50) These toads are so programmed to move, apparently, that even when in pain the toads travelled as fast and as far as the healthy ones, continuing their relentless march across the landscape.
回答(46)题 查看材料
A.But this advantage also has a big drawback——up to 10% of the biggest toads suffer from arthritis.
B.The task now facing the country is how to remove the toads.
C.But arthritis didn"t slow down toads outside the laboratory.
D.Toads with longer legs move faster and travel longer distances while the others are being left behind.
E.Toads are not built to be road runners——they are built to sit around ponds and wet areas.
F.Furthermore, they soon take over the natural habitats of Australia"s native species.