理学
相似问题和答案
第1题：
A、are too many coal
B、are too much coal
C、are too much coals
D、is too much coal
第2题：
Passage Three
In an age when waste today means a lack tomorrow, making use of every available resource becomes more and more important. As coal is being used in greater and greater amounts to produce electricity, larger amounts of ash, by-product of coal, are produced. When coal is burned
in a boiler, two kinds of ash by-product are produced, a heavy bottom ash and a fine-as-powder fly ash that is filtered and captured by precipitators. About 10 to 15 percent of the coal by-product is bottom ash which is used like sand on icy city streets and highways and also on highways as paving material. It is the fly ash, however, that is receiving the greater amount of attention. Fly ash may be used as an additive to concrete in the construction of dams, bricks, and roads, and can replace up to 20 percent of the cement used in concrete. As a by-product of burned coal, fly ash requires no additional expenditure of energy to be produced, while cement production requires great amounts of energy.
In addition to using fly ash as a concrete additive, the technology is available to extract the main mineral components-aluminum, silicon, and magnetic. Today, extracting these components is a very expensive process, but the time may come when it is cheaper to extract these products from ash than to mine new supplies.
41. What can be used as a material to pave roads?
A. The coal by-product.
B. Additive.
C. Fine-as-powder fly ash.
D. Both B and C.
答案为 A。根据题干找到第一段第三、四句，About 10 to 15 percent of the coal by-product is bottom ash which is used like sand on icy city streets and highways and also on highways as paving material 符合题意。
第3题：
The energy stored in coal ______.
C 解析：第四段的最后一句指出，“其他的发电机靠煤炭的燃烧驱动，但是，煤炭中的能量也来自于太阳”。C项中的“came from the sun(来自太阳)”与原句意思相符，故选C。
第4题：
Underground Coal Fires
Coal burning deep underground in China,India and Indonesia is threatening the environment and human life , scientists have warned.These large-scale______(51)blazes（火焰）cause the ground temperature to heat up and kill surrounding vegetation,produce greenhouse gases and can______(52) ignite（点燃）forest fires , a group of scientists told the annual meeting of the American Association for the
Advancement of Science in Denver.The resulting______(53)of poisonous elements like mercury can also pollute local water sources and soils,they warned.
"Coal fires are a global disaster,"said Associate Professor Glenn Stracher of East Georgia College in
Swainsboro,USA.But______(54)few people know about them.
Coal can heat up on its own,and eventually catch fire and bum,if there is a continuous oxygen supply.The heat produced is not caused to______(55)and under the right combinations of sunlight and oxygen,can trigger spontaneous（自发的）catching fire and buming.This can occur underground , in coal stockpiles, abandoned mines or even as coal is transported.______(56)fires in China consume up to 200 million tons of coal per year,delegates were told.In______(57),the U.S.economy consumes about one billion tons of coal annually,said Stracher,______(58)analysis of the likely impact of coal fires has been accepted for publication in the International Journal of Coal Ecology.______(59)underway,coal fires can bum for decades,even centuries.In the process,they release large______(60)of greenhouse gases,poisonous fumes and black particles into the atmosphere.
The members of the panel discussed the______(61)these fires may be having on global and regional climate change,and agreed that the underground nature of the fires makes them difficult to______(62).Ultimately,the remote sensing and other techniques should allow scientists to______(63)how much carbon dioxide these fires are emitting（释放）.One suggested______(64)of containing the fires was presented by Gary Colaizzi,of the engineering firm Goodson,which has developed a heat-resistant grout（灌浆）,which is designed to be pumped into the coal fire to______(65)the oxygen supply.
A:only
B:just
C:even
D:then
煤在地下燃烧产生的火焰能够使地表温度升高，并且毁坏周围的植被，产生温室气体，甚至能点燃森林。even在这里表示程度的递进。only仅仅，只有；just仅仅；even甚至，更then 然后。
此处表示“有毒气体的释放”，表示气体的释放应用"release"。 paste糨糊；consumption 消费；release释放；elimination消除，根除。
地下煤的燃烧是一种全球性的灾难，令人惊奇的是却很少有人了解，这里表示的是一种惊讶。happily愉快地；surprisingly惊人地，出人意料地；traditionally传统地；fashionably时髦地。
在有阳光和氧气的情况下，产生的热量会引起自燃，可见煤产生的热量并没有消失。 disappear消失；exchange交换；regenerate再生；transfer转换，转变。
此处表示：这样的火灾在中国每年消耗的煤多达2亿吨。most大多数，大部分；some一些，某些；such这种的，这样的；many许多，很多。
in comparison表示“与……相比”，用在这里表示中国发生自燃的煤量与美国经济消耗的煤量的比较。case案件，情况；time时间，时代；comparison比较；turn转动，旋转。
空格后的analysis与空格前的先行词Stracher是所有关系，因此用whose来引导这个定语从句，并在从句中作主语。which哪一个，一般用来引导先行词为物的定语从句；who谁，常用来引导先行词为人的定语从句，并在从句中作主语；what什么，常用来引导疑问句或名词性从句。
这句话的意思是：地下的煤一旦燃烧，火焰将会持续几十年，甚至几百年。因此用连词 once。 yet然而；unless除非；once一旦；although尽管，虽然。
volume表示the amount of sth.，意思是“量，额”，用在这里表明有毒气体、温室气体以及黑色颗粒的量很大。data数据；figure数字；volume量，分量；image影像，形象。
科研小组的成员讨论的是这些火焰的影响，have impact on是常用搭配，表示对……有影响。impact影响，作用；attack袭击，攻击；identification鉴定，识别；implication含义，蕴含。
这句话表明，在地下燃烧的特质使这些火焰很难被探测到。develop开发，发展；relieve 解除，缓解；supply提供，供应；detect侦察，发现，探测。
根据后文的how much可知，这里指的是对产生的二氧化碳的量的评估。experiment实验；estimate评估；gather收集，聚集；illustrate说明，解释。
Gary Colaizzi提出的是一种控制这些火焰的方法，因此用method来表示。cause原因，动机；treatment治疗，疗法；rule规则，规定；method方法，方式。
切断氧气的供应，应该用cut off来表示。take up占据；cut off切除，切断；back up支持； run out用完，耗尽。
第5题：
Which statement is correct concerning the carriage of coal in bulk ________．
A.Coal should be vented with surface ventilation only
B.Because of its inherent vice，coal should not be loaded wet
C.Dunnage should be placed against ship's sides and around stanchions
D.Through ventilation，as well as surface ventilation，should be provided whenever possible
第6题：
A.can use
B. can be used
C.is to use
D. is using
第7题：
What is NOT a problem when carrying coal ________．
A.The requirement for through-ventilation
B.The corrosion some types of coal will cause to the ship
C.Spontaneous heating
D.Generation of methane gas
第8题：
The heat that is produced by burning garbage can be used to______.
A. make electricity
B. make energy source
C. boil water
D. save coal
45．第三段。烧垃圾，用其能量烧水，再用其蒸汽发电。选项 C是正确的。
第9题：
Underground Coal Fires
Coal burning deep underground in China,India and Indonesia is threatening the environment and human life , scientists have warned.These large-scale______(51)blazes（火焰）cause the ground temperature to heat up and kill surrounding vegetation,produce greenhouse gases and can______(52) ignite（点燃）forest fires , a group of scientists told the annual meeting of the American Association for the
Advancement of Science in Denver.The resulting______(53)of poisonous elements like mercury can also pollute local water sources and soils,they warned.
"Coal fires are a global disaster,"said Associate Professor Glenn Stracher of East Georgia College in
Swainsboro,USA.But______(54)few people know about them.
Coal can heat up on its own,and eventually catch fire and bum,if there is a continuous oxygen supply.The heat produced is not caused to______(55)and under the right combinations of sunlight and oxygen,can trigger spontaneous（自发的）catching fire and buming.This can occur underground , in coal stockpiles, abandoned mines or even as coal is transported.______(56)fires in China consume up to 200 million tons of coal per year,delegates were told.In______(57),the U.S.economy consumes about one billion tons of coal annually,said Stracher,______(58)analysis of the likely impact of coal fires has been accepted for publication in the International Journal of Coal Ecology.______(59)underway,coal fires can bum for decades,even centuries.In the process,they release large______(60)of greenhouse gases,poisonous fumes and black particles into the atmosphere.
The members of the panel discussed the______(61)these fires may be having on global and regional climate change,and agreed that the underground nature of the fires makes them difficult to______(62).Ultimately,the remote sensing and other techniques should allow scientists to______(63)how much carbon dioxide these fires are emitting（释放）.One suggested______(64)of containing the fires was presented by Gary Colaizzi,of the engineering firm Goodson,which has developed a heat-resistant grout（灌浆）,which is designed to be pumped into the coal fire to______(65)the oxygen supply.
A:Yet
B:Unless
C:Once
D:Although
煤在地下燃烧产生的火焰能够使地表温度升高，并且毁坏周围的植被，产生温室气体，甚至能点燃森林。even在这里表示程度的递进。only仅仅，只有；just仅仅；even甚至，更then 然后。
此处表示“有毒气体的释放”，表示气体的释放应用"release"。 paste糨糊；consumption 消费；release释放；elimination消除，根除。
地下煤的燃烧是一种全球性的灾难，令人惊奇的是却很少有人了解，这里表示的是一种惊讶。happily愉快地；surprisingly惊人地，出人意料地；traditionally传统地；fashionably时髦地。
在有阳光和氧气的情况下，产生的热量会引起自燃，可见煤产生的热量并没有消失。 disappear消失；exchange交换；regenerate再生；transfer转换，转变。
此处表示：这样的火灾在中国每年消耗的煤多达2亿吨。most大多数，大部分；some一些，某些；such这种的，这样的；many许多，很多。
in comparison表示“与……相比”，用在这里表示中国发生自燃的煤量与美国经济消耗的煤量的比较。case案件，情况；time时间，时代；comparison比较；turn转动，旋转。
空格后的analysis与空格前的先行词Stracher是所有关系，因此用whose来引导这个定语从句，并在从句中作主语。which哪一个，一般用来引导先行词为物的定语从句；who谁，常用来引导先行词为人的定语从句，并在从句中作主语；what什么，常用来引导疑问句或名词性从句。
这句话的意思是：地下的煤一旦燃烧，火焰将会持续几十年，甚至几百年。因此用连词 once。 yet然而；unless除非；once一旦；although尽管，虽然。
volume表示the amount of sth.，意思是“量，额”，用在这里表明有毒气体、温室气体以及黑色颗粒的量很大。data数据；figure数字；volume量，分量；image影像，形象。
科研小组的成员讨论的是这些火焰的影响，have impact on是常用搭配，表示对……有影响。impact影响，作用；attack袭击，攻击；identification鉴定，识别；implication含义，蕴含。
这句话表明，在地下燃烧的特质使这些火焰很难被探测到。develop开发，发展；relieve 解除，缓解；supply提供，供应；detect侦察，发现，探测。
根据后文的how much可知，这里指的是对产生的二氧化碳的量的评估。experiment实验；estimate评估；gather收集，聚集；illustrate说明，解释。
Gary Colaizzi提出的是一种控制这些火焰的方法，因此用method来表示。cause原因，动机；treatment治疗，疗法；rule规则，规定；method方法，方式。
切断氧气的供应，应该用cut off来表示。take up占据；cut off切除，切断；back up支持； run out用完，耗尽。
第10题：
Asia accounts for 75% of the world's coal demand. The Chinese goverment has taken steps to limit pollution and support renewables. Yet coal consumption there rose in 2018, as it did the year before. In India coal demand grew by 9% last year. In Vietnam it swelld by altmost a quarter.
To keep the rise in global temperatures to no more than 1.59C relative to pre-industrial times, climatologists insist that almost all coal plants must shut by 2050, which mcans starting to act now.
Today's trends would keep the last coal plant open until 2079, cstimates UBS, a bank. Asia's coal-fired power regiment has a sprightly avcrage age of 15, compared with a creaky 40 years in America, close to retirement.
There are several reasons for this, but one stand out govemment I support. In India state-owned companies invest more than $6bn in coal mining and coal-fired power each year,statebacked banks provide some $10.6bn in financing. Indoncsia doles out more than S2bn annually for consumption of coalfired power. Japan and South Korca finance coal projccts outside their borders.
Govermment support is hardly surprising. State-backed coal firms make money and create jobs. W ind turbines and solar panels provide power only intermittently; for now, dirtier power plants are needed as back up. Gas is pumelling coal in America, but remains a bit-player in India and much of South-East Asia, since it has to be imported and is relatively expensive.
Neverheless, govermments betting on coal face three big risks. One is environmental.
Emissions from coal plants that are already built- -let alone new ones- will ensure that the world exceeds the level of carbon-dioside emissions likely to push global temperatures up by more tham 1.5%C.
There is an cconomio risk, too. Public-sector zeal for coal is matched only by private-sector distaste. Banks, including Asian ones, have increasingly said they will stop funding new coal plants. Wind and solar farms make coal look increasingly expensive. A study has found that private banks provided thre-quarters of loans to Indian renewables projects last year, state-backed banks doled out two-thirds of those for coal.
And then there is politics. Voters do not like breathing soot. More of them are concemed about elimnate change, too, as they face unpredictable growing seasons, foods and droughts.
Which of the followving statements is true?( ).。
B. Japanese govermment does not support coal
C. Solar power is the most used energy in rich countries
D. Gas is playing a bigger role in most Asian countries