The forest fire caused by the volcano is difficult to be______. A. put off B. put on
The forest fire caused by the volcano is difficult to be______.
A. put off
B. put on
C. put out
D. put up
The forest fire caused by the volcano is difficult to be______.
A. put off
B. put on
C. put out
D. put up
With the help of the strong wind. The forest fire is getting ______ control.
A.out
B.beyond
C.above
D.below
A.led to
B.resulted from
C.made up
D.put out
A.By the means of…under the control
B.By means of…under control
C.By means of…under a control
D.By a means of…under control
The heated air above a fire rises in a pillar of smoke and burnt gases, pulling fresh air in from the sides to replace it. Firefighters use this fact when they "fight fire with fire." They start a fire well in front of the one which they are fighting. Instead of traveling on in front of the huge fire, the smaller fire is pulled back toward it by the updrafts of the larger blaze. As it travels back to meet the large fire, the smaller backfire burns away the fuel that the forest fire needs to survive.
Even when a backfire has been well set, however, the fire may still win the struggle. The wind which the firefighters used to help them may now become their enemy. When the backfire meets the main fire, before both die for lack of fuel, there is tremendous flame, great heat and wild winds. A strong gust may blow the fire into the treetops beyond the area, giving the fire new fuel and a new life.
This passage focuses on ______.
A.how fires start
B.damage caused by fire
C.the fascination of fire
D.fighting forest fires
No wooded landscape we see today has been forest for all time. Plants have minimum requirements of temperature and moisture and, in ages past, virtually every part of Earth's surface has at some time been either too dry or too cold for plants to survive. However, as soon as climatic conditions change in favor of plant life, a fascinating sequence of changes occurs, called a primary succession.
First to colonize the barren land are the lowly lichens, surviving on bare rock. Slowly, the acids produced by these organisms crack the rock surface, plant debris accumulates, and mosses establish a shallow root-hold. Ferns may follow and, with short grasses and shrubs, gradually form. a covering of plant life. Roots probe even deeper into the developing soil and eventually large shrubs give way to the first trees. These grow rapidly, cutting off sunlight from the smaller plants, and soon establish complete domination-closing their ranks and forming a climax community which may endure for thousands of years.
Yet even this community is not everlasting. Fire may destroy it outright and settlers may cut it down to gain land for pasture or cultivation. If the land is then abandoned, a secondary succession will take over, developing much faster on the more hospitable soil. Shrubs and trees are among the early invaders, their seeds carried by the wind, by birds and lodged in the coats of mammals.
For as long as it stands and thrives, the forest is a vast machine, storing energy and many elements essential for life.
What does the forest strike mankind as permanent?
A.The trees are in community.
B.The forest is renewed each season.
C.Man's life is short in comparison.
D.It is an essential part our lives.
No wooded landscape we see today has been forest for all time. Plants have minimum requirements of temperature and moisture and, in ages past, virtually every part of Earth's surface has at some time been either too dry or too cold for plants to survive. However, as soon as climatic conditions change in favour of plant life, a fascinating sequence of changes occurs, called a primary succession.
First to colonize the barren land are the lowly lichens, surviving on bare rock. Slowly, the acids preduced by these organisms crack the rock surface, plant debris accumulates, and mosses establish a shallow root-hold. Ferns may follow and, with short grasses and shrubs, gradually form. a covering of plant life. Roots probe even deeper into the developing soil and eventually large shrubs give way to the first trees. These grow rapidly, cutting off sunlight from the smaller plants, and soon establish complete domination-closing their ranks and forming a climax community which may endure for thousands of years.
Yet even this community is not everlasting. Fire may destroy it outright and settlers may cut it down to gain land for pasture or cultivation. If the land is then abandoned, a secondary succession will take over, developing nmch faster on the more hospitable soil. Shrubs and trees are among the early invaders, their seeds carried by the wind, by birds and lodged in the coats of mammals.
For as long as it stands and thrives, the forest is a vast machine, storing energy and many elements essential for life.
What does the forest strike mankind as permanent?
A.The trees are in community.
B.The forest is renewed each season.
C.Man's life is short in comparison.
D.It is an essential part our lives.
In 2015, the US Forest Service for the first time spent more than half of its $5.5 billion annualbudget fighting fires-nearly double the percentage it spent on such efforts 20 years ago. In effect,fewer federal funds today are going towards the agency&39;s other work-such as forest conservation,watershed and cultural resources management, and infrastructure upkeep -that affect the lives of all Americans. Another nationwide concern is whether public funds from other agencies are going into constructionin fire-prone districts. As Moritz puts it, how often are federal dollars building homes that are likelyto be lost to a wildfire?
“It’s already a huge problem from a public expenditure perspective for the whole country, We need to take a magnifying glass to that. Like, “Wait a minute, is this OK ?”“Do we want insteadto redirect those funds to concentrate on lower-hazard parts of the landscape? ” Such a view would require a corresponding shift in the way US society today views fire, researcherssay.
For one thing, conversations about wildfires need to be more inclusive. Over the past decade, thefocus has been on climate change-how the warming of the Earth from greenhouse gases is leadingto conditions that worsen fires. While climate is a key element, Moritz says, it shouldn’t come at the expense of the rest of theequation.
“The human systems and the landscapes we live on are linked, and the interactions go both ways,"he says. Failing to recognize that, he notes, leads to "an overly simplified view of what the solutionsmight be. Our perception of the problem and of what the solution is becomes very limited. At the same time, people continue to treat fire as an event that needs to be wholly controlled andunleashed only out of necessity, says Professor Balch at the University of Colorado. But macknowledging fire&39;s inevitable presence in human life is an attitude crucial to developing the laws,policies, and practices that make it as safe as possible, she says.
“We’ve disconnected ourselves from living with fire, ” Balch says. “It is really important tounderstand and try and tease out what is the human connection with fire today. ”
36.More frequent wildfires have become a national concern because in 2015 they_____.
A.exhausted unprecedented management efforts
B.consumed a record-high percentage of budget
C.severely damaged the ecology of western states
D.caused a huge rise of infrastructure expenditure
While admitting that climate is a key element, Moritz notes that _____.A.public debates have not settled yet
B.fire-fighting conditions are improving
C.other factors should not be overlooked
D.a shift in the view of fire has taken place
The overly simplified view Moritz mentions is a result of failing to _____.A.discover the fundamental makeup of nature
B.explore the mechanism of the human systems
C.maximize the role of landscape in human life
D.understand the interrelations of man and nature
Moritz calls for the use of "a magnifying glass" to _____.A.raise more funds for fire-prone areas
B.avoid the redirection of federal money
C.find wildfire-free parts of the landscape
D.guarantee safer spending of public funds
Professor Balch points out that fire is something man should _____.A.do away with
B.come to terms with
C.pay a price for
D.keep away from
请帮忙给出每个问题的正确答案和分析,谢谢!
Our boat floated on (漂流) ,between walls of forest too thick to allow us a view of the land we were passing【21】though we knew from the map that our river must from time to time be passing through chains of hills.【22】did we find a place where we could have landed. So we stayed in the boat hoping that we【23】the sea, a friendly fisherman would pick us up and take us to the civilization.
We lived【24】fish, any fruit and nuts we could pick up out of the water. As we had no fire, we had to eat everything,【25】the raw fish. I had never tasted raw fish before, and I must say I did not much enjoy the【26】: perhaps sea-fish which do not live in the mud are less tasteless. As for water, there was a choice: we could drink muddy river water,【27】die of thirst. We drank the water. Men who have just escaped what had appeared to be certain death lose all worries about such small things as diseases caused by dirty water. In fact, none of us suffered from any illness【28】.
One day we passed another village, but fortunately nobody saw us. We did not wish to risk【29】prisoners a second time; we might not be so lucky【30】escape in a stolen boat again.
(56)
A.in
B.down
C.along
D.through
The author suggests that better driving habits ______.
A.are required by law
B.will not cause any accidents
C.help to keep the car in good shape
D.help save gas
The nation’s forests have seen a sharp increase in violent incidents—equipment vandalized, people intimidated—over the past ten years. Shearer now carefully inspects every tree before cutting and has been using metal detectors to check every trunk being processed. Yet Ihor Mereszczak, of the Nez Perce Forest Service, says it has been hard to get the FBI’s attention, and investigations have got nowhere.
The ELF is only one thread in a web of underground radical environmentalists. Its aim is to inflict as much financial pain as possible on organizations or people who, by its lights, are exploiting the environment. The ELF, though made up of anonymous cells, nonetheless operates a website offering tips on how to cause fires with electric timers. Until recently, it also had a public spokesman.
Together with the Animal Liberation Front (ALF), which operates along the same lines, the ELF is estimated to be responsible for over $45m-worth of damage in North America over the past few years. In 1998, it caused fires that did $12m-worth of damage in Vail, Colorado, to make the point that the ski resort’s expansion was threatening places where lynxes live. Earlier this year, the ELF burned down the offices of a lumber company in Oregon. Since September 11th, the ALF and ELF have claimed responsibility for starting a fire at a primate research center in New Mexico, releasing mink from an Iowa fur farm, and firebombing a federal corral for wild horses in California.
Are they terrorists? The two groups reject the label, claiming to take all precautions against harming “animals, whether humans or not”. But earlier this year Louis Freeh, the FBI’s boss, listed both organizations among the most active domestic terrorist groups. Scott McInnis, the Republican congressman whose district includes Vail, argues it is only a matter of time before somebody gets hurt, and he now expects the FBI to put in more resources.
The House subcommittee on forests, which Mr McInnis heads, will hold a hearing on eco-terrorism in February. But he has annoyed some mainstream green groups by asking them to denounce the ELF’s and ALF’s methods. Greenpeace, for instance, says that its disapproval is self-evident, and resents being asked to express it. Mr. McInnis still wants their answer by December 1st, but the war on eco-terrorism is off to a rocky start.
第36题:What did the ELF do to Shearer Lumber Products?
[A] Hurt its employees. [B] Crippled its equipments. [C] Hid metals in its trees. [D] Protested against its spiking.