The word "enveloped" in line 6 is closest in meaning to ______.A.surroundedB.changedC.esca
The word "enveloped" in line 6 is closest in meaning to ______.
A.surrounded
B.changed
C.escaped
D.characterized
The word "enveloped" in line 6 is closest in meaning to ______.
A.surrounded
B.changed
C.escaped
D.characterized
When we were in the mountains, we often found ourselves entirely enveloped by the fog.
A.confined
B.surrounded
C.darkened
D.blocked
When the sun becomes a red giant, what will conditions be like on Earth?
A.Its atmosphere will freeze and become solid.
B.It will be enveloped in the expanding surface of the sun.
C.It will become too hot for life to exist.
D.It will be nearly destroyed by nova explosions.
What is this news about?
A.Security measures in Malaysia.
B.An environmental crisis in Malaysia.
C.Health concerns in Malaysia.
D.Forest fires in Malaysia.
Approximately how much of the Earth's atmosphere is nitrogen?
A.One-fourth.
B.One-half.
C.Three-fourths.
D.All of it.
Approximately how much of the Earth's atmosphere is nitrogen?
A.One-fourth
B.One-half
C.Three-fourths
D.All of it
But the environmental problems that developing countries should worry about are different from those that western pundits have fashionable arguments over. They are not about potential problems in the next century, but about indisputable harm being caused to conventional wisdom, solving such problems need not hurt economic growth; indeed dealing with them now will generally be cheaper than leaving them to cause further harm.
In most developing countries pollution seems to be getting worse, not better. Most big cities in Latin America, for example, are suffering rising levels of air pollution. Populations in these countries are growing so fast that improvements in water supply have failed to keep up with the number of extra people. Worldwide, about a billion people still have no access to clean water, and water contaminated by sewage is estimated to kill some 2 million children every year. Throughout Latin America, Asia, Africa, forests are disappearing, causing not just long-term concern about climate change but also immediate economic damage. Forest fires in Indonesia in 1997 produced a huge blanket of smog that enveloped much of South-East Asia and kept the tourists away. It could happen again, and probably will.
Recent research suggests that pollution in developing countries is far more than a minor irritation: it imposes a heavy economic cost. A Word Bank study put the cost of air and water pollution in China at $ 54 billion a year, equivalent to an astonishing 8% of the country's GDP. Another study estimated the health costs of air pollution in Jakarta and Bangkok in the early 1990s at around 10% of these cities' income. These are no more than educated guesses, but whichever way the sums are done, the cost is not negligible.
It is conventionally thought that ______.
A.only rich countries can afford to care about environmental problems
B.developing countries should also be thinking about the environment
C.environmental problems exist only in the rich world
D.rich countries have not paid enough attention to the health of the planet
"Aha!" he exclaimed as he picked a hair off the lapel of the dead man' s coat." The mystery is a mystery no longer. We have only to find the man who lost this hair, and the criminal will be in our hand." The inexorable chain of logic was complete, and the detective embarked on his search.
For four days and four nights he moved unobserved through the streets of New York, scanning closely every face he passed, looking for a man who had lost a hair. On the fifth day he discovered a man disguised as a tourist, his head enveloped in a cap reaching below his ears. The man was about to board the Gloritania, and the detective lost no time in following him on board.
"Arrest him!" shouted the detective, and then, drawing himself to his full height, he brandished aloft the hair." This is his," said the great detective," and it proves his guilt".
"Remove his hat," ordered the ship' s captain sternly.
It was discovered that the man was entirely bald.
"Aha!" exclaimed the great detective without a moment' s hesitation." He has committed not one murder, but about one million !"
The detective declared the mystery solved before he______.
A.found the hair
B.produced the microscope
C.searched for the murderer
D.glanced at the corpse
"Aha!" he exclaimed as he picked a hair off the lapel of the dead man's coat." The mystery is a mystery no longer. We have only to find the man who lost this hair, and the criminal will be in our hand." The inexorable chain of logic was complete, and the detective embarked on his search.
For four days and four nights he moved unobserved through the streets of New York, scanning closely every face he passed, looking for a man who had lost a hair. On the fifth day he discovered a man disguised as a tourist, his head enveloped in a cap reaching below his ears. The man was about to board the Gloritania, and the detective lost no time in following him on board.
"Arrest him!" shouted the detective, and then, drawing himself to his full height, he brandished aloft the hair." This is his," said the great detective," and it proves his guilt" .
"Remove his hat," ordered the ship's captain sternly.
It was discovered that the man was entirely bald.
"Aha!" exclaimed the great detective without a moment's hesitation." He has committed not one murder, but about one million!"
The detective declared the mystery solved before he ______.
A.found the hair
B.produced the microscope
C.searched for the murderer
D.glanced at the corpse
Our planet Earth is 4,600 million years old. If we reduce 【M1】______
this inconceivable time-span into an understandable concept, we
can liken the Earth with a person of 46 years of age. Nothing 【M2】______
is known about the first 7 years of this persons' life, and whilst
only scattered information exists about the middle span, we
know that only at the age of 42 did the Earth begin to flower.
Dinosaurs and the great reptiles did appear until one year 【M3】______
ago, when the planet was 45. Mammals arrived only 8 months
ago; in the middle of last week man-like apes revolved into 【M4】______
ape-like men, and at the weekend the past ice age enveloped 【M5】______
the Earth.
Modem man has been around for 4 hours. During the last
hour Man discovered the agriculture. The industrial revolution
began a minute early. During those sixty seconds of biological 【M6】______
time, Modem Man made a rubbish tip of the Paradise. He 【M7】______
has multiplied numbers to plague proportions, caused the 【M8】______
the extinction of 500 species of animals, ransacked the
planet of fuels and now stands like a brutish infant, gloating 【M9】______
over his meteoric rise to ascendancy, on the near brink of a 【M10】______
war to end all wars and of effectively destroying this oasis of
life in the solar system.
【M1】
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