The word "extracting" underlined in Paragraph 2 is closest in meaning to ______.A.breaking
The word "extracting" underlined in Paragraph 2 is closest in meaning to ______.
A.breaking
B.locating
C.removing
D.analyzing
The word "extracting" underlined in Paragraph 2 is closest in meaning to ______.
A.breaking
B.locating
C.removing
D.analyzing
A.expanding
B.exciting
C.extracting
A.Inferring meaning from the context.
B.Recognizing the author"s beliefs and attitudes.
C.Using information in the reading passage to make hypotheses.
D.Listening to the flight information to see if the plane is on time.
It is profitable to drill to depths more than 1,000 feet for oil and gas extraction, but only recently in California has it become profitable to pump water from this depth.The aquifers range from 1,000 to3,000 feet below the ground, which means that pumping will be expensive and there are other concerns.The biggest concern of pumping out water from this deep is the gradual setting down of the land surface.As the water is pumped out, the vacant space left is compacted by the weight of the earth above.
Even though pumping from these depths is expensive, it is still cheaper than desalinating(脱盐)the ocean water in the largely coastal state.Some desalination plants exist where feasible, but they are costly to run and can need constant repairs.Wells are much more reliable sources of freshwater, and California is hoping that these deep wells may be the answer to their severe water shortage.
One problem with these sources is that the deep water also has a higher level of salt than shallower aquifers.This means that some wells may even need to undergo desalination after extraction, thus increasing the cost.Research from the exhaustive study of groundwater from over 950 drilling logs has just been published.New estimates of the water reserves now go up to 2,700 billion cubic meters of freshwater.
1.How could California’s drought crisis be solved according to some researchers?
A.By building more reserves of groundwater.
B.By drawing water from the depths of the earth.
C.By developing more advanced drilling devices.
D.By upgrading its water distribution system.
2.What can be inferred about extracting water from deep aquifers?
A.It was deemed vital to solving the water problem.
B.It was not considered worth the expense.
C.It may not provide quality freshwater.
D.It is bound to gain support from the local people.
3.What is mentioned as a consequence of extracting water from deep underground?
A.The sinking of land surface.
B.The harm to the ecosystem.
C.The damage to aquifers.
D.The change of the climate.
4.What does the author say about deep wells?
A.They run without any need for repairs.
B.They are entirely free from pollutants.
C.They are the ultimate solution to droughts.
D.They provide a steady supply of freshwater.
5.What may happen when deep aquifers are used as water sources?
A.People’s health may improve with cleaner water.
B.People’s water bills may be lowered considerably.
C.The cost may go up due to desalination.
D.They may be exhausted sooner or later.
Like Proust, the French author whose experiences became his literary capital, man can recapture the past. He can also summon up things to come, displaying imagination and foresight along with memory. It really can be argued, that memory and foresightedness are the essence of intelligence; that man's ability to manipulate time, to employ both past and future as guides to present action, is what makes him human.
To be sure, many animals can react to time after a fashion. A rat can learn to press a lever that will, after a delay of some 25 seconds, reward it with a bit of food. But if the delay stretches beyond 30 seconds, the animal is stumped. It can no longer associate the reward so "far" in the future with the present lever-pressing.
Monkeys, more smart than rats, are better able to deal with time. If one of them is allowed to see food being hid den under one of two cups, it can pick out the right cup even after 90 seconds have passed. But after that time interval, the monkey's hunt for the food is no better than chance predicts.
With the apes, man's nearest cousins, "time sense" takes a big step forward. Even under laboratory conditions, quite different from those they encounter in the wild, apes sometimes show remarkable ability to manipulate the present to obtain a future goal. A chimpanzee, for example, can learn to stack two boxes, one on the other, as a platform. from which it can reach a hanging banana. Chimpanzees, indeed, carry their ability to deal with the future to the threshold of human capacity: they can make tools. And it is by the making of tools—physical tools as crude as a stone chopper, mental tools as subtle as a mathematical equation—that man characteristically prepares for future contingencies.
Chimpanzees in the wild have been seen to strip a twig of its leaves to make a probe for extracting termites from their hole. Significantly, however, the ape does not make his tool before setting out on a termite hunt, but only when it actually sees the insects or their nest. Here, as with the banana and the crates, the ape can cope only with a future that is immediate and visible—and thus halfway into the present.
According to the article, which of the following statements is TRUE?
A.Chimpanzees' sense of time is as good as man's.
B.Man developed from apes.
C.Memory and foresight contribute to intelligence.
D.Monkeys and apes are almost as intelligent as man.
A.Y
B.N
C.NG