The preventive measures for forest fires include some preemptive(抢先)methods that can help reduce the risks of fires and control their severity and spread, and thus, maintain ecological balance and protect resources. Close monitoring of forest fires caused by natural factors can help prevent their spread to a large extent. To contain forest fires, fire departments usually use water and chemical fire retardants(抑制剂) that can be dropped from planes and helicopters. To control the spread of a wildfire, firefighters usually create a control line by removing all fuel from an area so that the fire cannot travel across it.
Controlled burns are often employed by government authorities to reduce fuel buildup, and clean up the fallen leaves, and thus, prevent the spread of forest fires to a vast area. Regular controlled burns can also help maintain biodiversity(生物多样性), as the smoke and heat produced in the process can facilitate(促进) the growth of seeds of certain plant species. Apart from these, responsible human behavior can help reduce the number of forest fires to a great extent. In fact, we can reduce the number of wildfires dramatically by not leaving behind any source of fire in the forest.
Forest fires can affect climate and weather to a great extent, besides causing severe damage to valuable trees. Wildfires can increase the level of greenhouse gases(water vapor, carbon dioxide, etc), and therefore increase pollution and global warming. However, they are also an important part of the ecosystem, and many plants depend on the heat and smoke generated by wildfires for their growth and reproduction. But large wildfires can cause extensive damage to the ecosystem, which again highlights the importance of effective control and prevention of forest fires.
1.What may be the best title for this passage?
A.Control and Prevention of Forest Fires B.How to Keep Ecological Balance
C.Effects of Forest Fires D.Methods of Fire Spread Control
2.Firefighters get rid of all fuel in all area in order to ____________．
A.keep close monitoring of forest fires B.prevent the forest fire from occurring
C.protect the animals there D.stop the wildfire from spreading
3.The government arranges some controlled burns to_______________．
A.burn the rubbish and keep the forest clean
B.help keep ecological balance of nature
C.reduce fuel building up and limit forest fires spread.
D.provide reasonable conditions for some plants’ growth.
4.A controlled forest fire may play a positive role because ________________.
A.a new forest will appear soon.
B.it promotes the development of some seeds
C.nature keeps its balance only by wildfires.
D.it makes the trees grow faster than before.
高三英语阅读理解中等难度题
The preventive measures for forest fires include some preemptive(抢先)methods that can help reduce the risks of fires and control their severity and spread，and thus, maintain ecological balance and protect resources．Close monitoring of forest fires caused by natural factors can help prevent their spread to a large extent．To contain forest fires，fire departments usually use water and chemical fire retardants(抑制剂)that can be dropped from planes and helicopters．To control the spread of a wildfire．firefighters usually create a control line by removing all fuel from an area so that the fire cannot travel across it．
Controlled burns are often employed by government authorities to reduce fuel buildup，and clean up the fallen leaves，and thus，prevent the spread of forest fires to a vast area．Regular controlled burns can also help maintain biodiversity(生物多样性)，as the smoke and heat produced in the process can facilitate(促进)the growth of seeds of certain plant species．Apart from these，responsible human behavior can help reduce the number of forest fires to a great extent．In fact，we can reduce the number of wildfires dramatically by not leaving behind any source of fire in the forest.
Forest fires can affect climate and weather to a great extent，besides causing severe damage to valuable trees．Wildfires can increase the level of greenhouse gases(water vapor, carbon dioxide，etc)，and therefore increase pollution and global warming．However, they are also an important part of the ecosystem，and many plants depend on the heat and smoke generated by wildfires for their growth and reproduction．But large wildfires can cause extensive damage to the ecosystem，which again highlights the importance of effective control and prevention of forest fires·
1.What may be the best title for this passage?
A．Control and Prevention of Forest Fires
B．How to Keep Ecological Balance
C．Effects of Forest Fires
D．Methods of Fire Spread Control
2.Firefighters get rid of all fuel in all area in order to ____________．
A．keep close monitoring of forest fires
B．prevent the forest fire from occurring
C．protect the animals there
D．stop the wildfire from spreading
3.The government arranges some controlled burns to_______________．
A．burn the rubbish and keep the forest clean
B．help keep ecological balance of nature
C．reduce fuel buildup and limit forest fires spread
D．provide reasonable conditions for some plants’growth
4.A controlled forest fire may play a positive role because ________________.
A．a new forest will appear soon
B．it promotes the development of some seeds
C．nature keeps its balance only by wildfires
D．it makes the trees grow faster than before
5.The last paragraph tells us that _______________．
A．the greenhouse gases are caused mainly by wildfires
B．wildfires have both positive and negative effects
C．people should be aware of the necessity of wildfires
D．all the valuable trees disappear owing to wildfires
高三英语阅读理解中等难度题查看答案及解析
The preventive measures for forest fires include some preemptive(抢先)methods that can help reduce the risks of fires and control their severity and spread, and thus, maintain ecological balance and protect resources. Close monitoring of forest fires caused by natural factors can help prevent their spread to a large extent. To contain forest fires, fire departments usually use water and chemical fire retardants(抑制剂) that can be dropped from planes and helicopters. To control the spread of a wildfire, firefighters usually create a control line by removing all fuel from an area so that the fire cannot travel across it.
Controlled burns are often employed by government authorities to reduce fuel buildup, and clean up the fallen leaves, and thus, prevent the spread of forest fires to a vast area. Regular controlled burns can also help maintain biodiversity(生物多样性), as the smoke and heat produced in the process can facilitate(促进) the growth of seeds of certain plant species. Apart from these, responsible human behavior can help reduce the number of forest fires to a great extent. In fact, we can reduce the number of wildfires dramatically by not leaving behind any source of fire in the forest.
Forest fires can affect climate and weather to a great extent, besides causing severe damage to valuable trees. Wildfires can increase the level of greenhouse gases(water vapor, carbon dioxide, etc), and therefore increase pollution and global warming. However, they are also an important part of the ecosystem, and many plants depend on the heat and smoke generated by wildfires for their growth and reproduction. But large wildfires can cause extensive damage to the ecosystem, which again highlights the importance of effective control and prevention of forest fires.
1.What may be the best title for this passage?
A.Control and Prevention of Forest Fires B.How to Keep Ecological Balance
C.Effects of Forest Fires D.Methods of Fire Spread Control
2.Firefighters get rid of all fuel in all area in order to ____________．
A.keep close monitoring of forest fires B.prevent the forest fire from occurring
C.protect the animals there D.stop the wildfire from spreading
3.The government arranges some controlled burns to_______________．
A.burn the rubbish and keep the forest clean
B.help keep ecological balance of nature
C.reduce fuel building up and limit forest fires spread.
D.provide reasonable conditions for some plants’ growth.
4.A controlled forest fire may play a positive role because ________________.
A.a new forest will appear soon.
B.it promotes the development of some seeds
C.nature keeps its balance only by wildfires.
D.it makes the trees grow faster than before.
高三英语阅读理解中等难度题查看答案及解析
－The fire in the supermarket last night was terrible !
—They have taken some measures to prevent it occurring．
A． must B．will C．would D． should
高三英语单项填空简单题查看答案及解析
Be careful about the news on red fire ants— ________measures to prevent the possible spread of them.
A. take B. to take C. taken D. taking
高三英语单项填空中等难度题查看答案及解析
If we ___________some measures, we might have prevented the environmental pollution.
| A．take | B．had taken | C．took | D．have taken |
高三英语单项填空中等难度题查看答案及解析
In order to prevent the fire spreading, some of the houses nearby had been ________ before firemen arrived.
A. burned down B. pulled down C. put down D. turned down
高三英语单项填空中等难度题查看答案及解析
Most environmental problems exist because adequate measures for preventing them ____in the past.
A. not being taken B. didn’t take
C. were not taken D. haven’t taken
高三英语单项填空中等难度题查看答案及解析
There are so many tall trees in the forest,______________.
A．some of them measures over 50 meters B．some of which measuring over 50 meters
C．some of them measuring over 50 meters D．some of which measures over 50 meters
高三英语单项填空中等难度题查看答案及解析
Fencing or Not
Wildlife fences are constructed for a variety of reasons including to prevent the spread of diseases, to protect wildlife from poachers(偷猎者), and to help manage small populations of threatened species. Human-wildlife conflict is another common reason for building fences. Wildlife can damage valuable farm animals and crops. Some species carry diseases of agricultural concern, and a few threaten human lives. At the same time, people kill wild animals for food, trade, or to defend lives or property, and human activities destroy wildlife habitat(栖息地). Separating people and wildlife by fencing can appear to be a mutually beneficial way to avoid such harmful effects. But in a paper in the journal Science, published recently, some scientists argue that fencing should only be used if worse comes to worst.
According to the scientists, although fencing can have conservation benefits, it also has costs. When areas of wildlife habitat are changed into islands, the resulting small and isolated populations tend towards extinction, and the resulting loss of larger-bodied species can affect interactions between species in ways that cause further local extinctions. Therefore, scientists are asking that conservationists carefully weigh up the biodiversity costs and benefits of new and existing fences.
In addition to fences’ ecosystem-wide impact, the scientists don’t think they always achieve their specific aims. Construction of fences to reduce human-wildlife conflict has been successful in some places but the challenges of appropriate fence design, location, construction, and protection mean that fences often fail to deliver the anticipated benefits. In some places, fences also provide poachers with a ready supply of wire for making traps.
A variety of alternative approaches, including better caring for farm animals, community-based crop-guarding, insurance and wildlife-sensitive land-use planning are suggested to reduce conflicts between people and wildlife without the need for fencing. Some projects working with local people and government agencies in Indonesia have shown that human-elephant conflict can be dramatically reduced without using fences.
The scientists conclude that as climate change increases the importance of facilitating wildlife mobility and conserving landscape connectivity, fence removal may become an important form of climate change preparation, and so fencing of wildlife should be avoided whenever possible.
1.What does the underlined word “mutually” in Paragraph 1 probably mean________?
A. Indeed. B. Outdoors. C. Straight. D. Both.
2.According to the scientists, what will fencing influence______?
A. Land building.
B. Species diversity.
C. Human population.
D. Wildlife’s body size.
3.What is mainly discussed in Paragraph 4_______?
A. Replacements for fences.
B. Wildlife-protection methods.
C. Effective land-use approaches.
D. Conflicts between human and wildlife
4.The main purpose of the passage is to ________.
A. argue and prove
B. inform and explain
C. appeal and discuss
D. compare and assess
高三英语阅读理解中等难度题查看答案及解析
Everyone here will thank the firefighters for the things they do to prevent fires ______ the environment safer.
A. to make B.make C.making D.from making
高三英语单项填空中等难度题查看答案及解析