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填空题El Nino effect may become more frequent and fierce if enough heat could be brought to Pacific waters by the accumulation of greenhouse gases.____
题目
填空题
El Nino effect may become more frequent and fierce if enough heat could be brought to Pacific waters by the accumulation of greenhouse gases.____
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第1题：
A greenhouse is a building made of glass which is used for keeping plants when the outside temperature is low. In a similar way there are several gases in the atmosphere which trap(捕捉)the heat produced by the sun and prevent it from escaping. These gases are known as"greenhouse gases"，and the way in which they trap heat in the atmosphere is called the "greenhouse effect". This is not simply air pollution. Most of the main greenhouse gases exist naturally in small amounts in our atmosphere, and without them earth would be 30 degrees colder and human life would not exist. In other words, the greenhouse effect is a natural course which is to some degree helpful to us.
The problem is that in the last century and a half, we have been putting too many of these gases into the earth's atmosphere by burning large quantities of coal and oil and by cutting down forests. The rapid increase in greenhouse gases is making the world warmer. The world's temperature has already gone up by half a degree this century, and the sea level has risen by 10 centimetres. If the amount of carbon dioxide(二氧化碳)in the atmosphere doubles, there will probably be a rise in the earth's temperature of between 1 and 4 degrees. This may seem a small increase, but it would be enough to cause major changes in geography and agriculture. Large areas of the world would be flooded, and some areas would become dry and unable to produce crops. It is important, too, to consider that there may be a delay of about 30 years in the greenhouse effect. This means that we are probably experiencing only now the effect of the gases put into the atmosphere before the 1960s. Since then, our use of these gases has greatly increased.
1. The"greenhouse effect"means _____.
A. the way in which gases are used for keeping plants warm
B. a natural course which is some degree helpful to us
C. the way"greenhouse gases"trap heat on the earth
D. the whole course in which greenhouse gases prevent heat
2. If there were no greenhouse effect, _____.
A. no plants would grow on our planet
B. earth would be thirty degrees colder
C. man could not live on the earth
D. All of the above answers are correct
3. Which of the following is NOT true? _____
A. Burning too much coal and oil produces lots of greenhouse gases.
B. It has become warmer on the earth now than in the past.
C. Gases put into the atmosphere now will affect the earth years later.
D. The temperature in a greenhouse is as high as that in the atmosphere.
4. Suppose the earth's temperature rose by 3 degrees, _____.
A. great harm would be done to mankind
B. the sea level would go by 10 centimetres
C. all the land in the world would be flooded
D. crops would be unable to grow on the earth
5. This passage mainly deals with _____.
A. the concept(概念)and harm of greenhouse effect
B. the relation between greenhouse gases and man
C. the concept and change of greenhouse effect
D. the effect of the rise of the earth's temperature
参考答案： BDDAC
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第2题：
If we ______ the problem from a different angle, a solution may become more obvious.()A. contract
B. uncover
C. view
D. intend
参考答案：C
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第3题：
共用题干
第二篇
Around 45%of the UK's carbon dioxide emissions come from the energy people use every day-at home and when they travel.In order to generate that energy,fossil fuels(coal oil,and gas)are burnt,and these produce greenhouse gases-in particular carbon dioxide(CO2).Car emissions are a major problem, but the truth is that more CO2 comes from the energy used at home.The average household creates around
five and a half tonnes of CO2 a year,and it is the same CO2 that is changing the climate and damaging the environment.
CO2 and various other gases wrap the earth in an invisible blanket helping to prevent heat from escaping.Without this greenhouse effect,the average temperature on Earth would be around-18℃， compared with the current average of around+15℃．The composition of this blanket of gases has remained relatively constant for many thousands of years.However,since the industrial revolution began around 200 years ago,people have been burning increasing amounts of fossil fuels,thus releasing more CO2 and other greenhouse gases in the process.This has increased the heating effect of the blanket,trapping more of the sun's energy inside the Earth's atmosphere in turn the Earth's temperature has increased more rapidly in a shorter period of time than it has for thousands of years.
In 2008,the total UK CO2 emissions were 533 million tonnes.27%(144 million tonnes)of those emissions came from the energy used to heat,light,and power homes.Transport emissions caused by passenger cars,buses and motorcycles accounted for a further 16%(87 million tonnes)of the UK's CO2 emissions.These figures show that a significant amount of CO2 results from ordinary citizens carbon footprint in their daily activities and lifestyle.
The effects of climate change can be seen all around us.Weather patterns are becoming more and more fractured and uncertain,and over the last century trends in warm weather have become increasingly common.In the UK in the last 40 years,winters have grown warmer,with much heavier rainfall.One of the clearest shifts over the last 200 years is towards summers that are hotter and drier,causing pervasive（普遍的）water shortages.Recent years have been the hottest since records began and during August 2003,the hottest ever outdoor temperature in the UK was recorded-38.5℃．What is the author's opinion about the level of CO2 emissions in the UK?
A:The majority of CO2 emissions come from motorized transport.
B:CO2 emissions may cause climate change in the future.
C:More CO2 emissions come from homes than from cars.
D:The average citizen does not create much CO2.答案：C解析：本文以英国的情况为例，主要讲述了人们在日常生活中排出大量二氧化碳气体及这种情次对地球环境的影响。文章以英国二氧化碳气体的排放来源展开论述，指出由于人们活动消耗能源，使得大气中产生大量的二氧化碳。并通过具体数据来论述人类的日常活动排放的大量二氧化碳及其对气候所产生的不良影响。故本题选C。
由文章第一段第三句和第四句话的内容可知，家庭排放的二氧化碳气体占据二氧化碳排放量的主要部分，比汽车排放的多，故选C。
由文章第三段中的内容可知，2008年，在英国有16％的二氧化碳气体来自于交通工具的排放，这和D项意思相符，故选D。
文章第四段第三句话中提到，在过去40年里，英国的冬天变得更暖，降雨也更加猛烈， A、B、D三项的内容文中均未提及，故选C。
由第36题的解析可知，文章主要围绕在英国人们日常生活所排放的大量二氧化碳气体及其对气候的影响来展开。故本题最佳答案为B。 -
第4题：
Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico.
Eleven gray whales have died in the San Francisco Bay in the last three weeks．No one knows why the whales are dying.
Last year 270 whales died along the whales'migration route．Many people think starvation is the cause．This year the dead whales seem to have more blubber(fat)on them.
Twenty years ago,the gray whale was listed as an endangered species.
Some scientists think that the larger number of whales makes it hard to find enough food．More whales create more pressure on the food supply,a supply that some scientists say may have dwindled as a result of the warm waters of El Nino.
Most of the whales have been dead for many days before they are found and studied．This makes it hard to find the reason for death.
65 whales have been seen in the San Francisco Bay Area this year compared to 17 last year．The whales could be dying from many diseases,but it may be over-population．
Which of the following is NOT a possible reason for whales dying?A.Pneumoni
B.Brain infectio
C.Over-populatio
D.Over-eatin答案：D解析：参见第五段。作者特别提到由于鲸鱼的数量巨大，它们很可能没有足够的食物。因此，过量饮食是不可能的。由于人们还没有真正弄清楚鲸鱼的死因，那么，任何其他的原因都是可能的。 -
第5题：
At the first sight the planet Mars does not appear very welcome to any kind of life．It has very little oxygen and water,the temperature at night is below-50~Cand winds of 100 miles per hour cause severe dust storms．However,the surface of the planet seems to show that water flowed across it some time in the past,and it is believed that there is enough ice at the poles to cover the planet with water if it melts．Although there is no life on the Mars now,some scientists think that there may have been some form of life long time ago．At that time,the planet had active volcanoes;the atmosphere was thicker and warmer;and there was water．In fact,in some ways the Mars may have been similar to the Earth,where life exists.
Some people believe that the Mars could support life in the future if the right conditions were produced．The first step would be to warm the planet using certain gases which trap the Sun's heat in the planet's atmosphere．With warmth,water and carbon dioxide(二氧化碳),simple plants could begin to grow．These plants could slowly make the Mars more suitable for living．It is estimated that the whole process might take between 100,000 and 200,000 years．In the meantime,people could begin to live on the planet in special closed environments．They would provide a lot of useful information about conditions on the Mars and the problems connected with living there.
There could be life on the Mars in the future ifA.it supported life in the past
B.certain gases are used to cool the planet
C.the atmosphere can be heated enough to grow simple plants
D.the planet's volcanoes become as active as they were in the past答案：C解析：第二段大意是：如果要想改变火星的条件使之适合居住，首先要提高星球的温度，其方法是用某些气体收集太阳的热能。有了温度、水和二氧化碳，一些植物便可生长。慢慢地使星球适合生存。选项C，“人们可以以提高环境的温度的方式来使一些植物生长”是正确的。 -
第6题：
共用题干
Heat Is Killer Extremely hot weather is common in many parts of the world.Although hot weather just makes most people feel hot,it can_______(51)serious medical problems-even death.Floods,storms,volcano eruptions and other natural______(52)kill thousands of people every year.
So______(53) extreme heat.Experts say heat may be nature's deadliest killer, Recently,extreme heat was blamed ______(54)killing more than one hundred people in India.It is reported that the total heat of a hot day or several days can______(55)health.Several hot days are considered a heat wave.
Experts say heat waves often become dangerous when the nighttime temperature does not_______(56)much from the highest daytime temperature.This causes great stress on the human body.
Doctors say people can do many things to______(57)themselves from the dangers of extreme heat. Stay out of the sun,if possible.Drink lots of cool water.Wear light colored clothing made______(58) natural materials;avoid wearing synthetic clothing.
Make sure the clothing is______(59),permitting freedom of movement.
And learn the danger______(60)of the medical problems,such as headache and vomiting,that are linked to heat.Most people suffer only muscle pain as a(n)______(61)of heat stress.The fiain is a______(62)that the body is becoming too hot.Doctors say those suffering headache or muscle pain should stop all activity,rest in a cool place and drink cool liquids.Do not return to physical _______(63)for a few hours because more serious conditions could develop.
Doctors say some people face an______(64)danger from heat stress.Such persons have a weak or damaged heart,high blood pressure,or other problems of the blood system.
Hot Weather also increases dangers for people who must take______(65)for high blood pressure, poor blood flow,nervousness or depression.61._________
A:influence
B:result
C:effect
D:view答案：B解析：该句意思是：别以为高温仅仅让人们感觉炎热，实际上它还会引发严重的疾病，甚至死亡。cause意思是“引起，造成”，符合句意。make制作；affect影响；form形成。
disasters意思是“灾难”, natural disasters意为“自然灾难”。前面的floods , storms,volcano eruptions都是自然灾害的具体表现，因此B项符合句意。pains疼痛；matters事件；experiences经历。
根据上文意思可知，该句意思是：极热天气更是如此。此处是倒装句，so+助动词+主语，表示主语一也这样。因为extreme heat为单数，所以助动词应用第三人称单数形式。
该句意思是：近来，印度有100多人死于极端高温天气。be blamed for为固定搭配，意思是“对……负有责任”，符合句意。
该句意思是：据报道，一天或几天里遭受持续高温的袭击将影响健康。affect意思是“影响”，符合句意。change改变；obtain获得；cause引起。
该句意思是：如果到夜晚没有降温，热浪是很危险的。drop意思是“下降”，符合句意。soar骤然上升；remove移动；meet遇见，满足。
protect…from…意思是“保护……免受……”，符合句意。keep/stop/prevent…from…阻止……发生。
该句意思是：要穿天然材料制作的衣服，不穿合成面料的服装。be made of意思是“由……制成”（看不出来原材料），符合句意。be made from由……制成（看得出来原材料）;be made in在……制作；be made for为……制作。
根据后半句意思可知，该句意思是：要确保衣服一定要宽松，以便活动自由。loose意思是“宽松的”，符合句意。tight绷紧的；large大的；small小的。
该句意思是：了解高温引发疾病的危险信号，比如头疼、呕吐。signs意思是“信号”，符合句意。designs设计；traits特点；points观点。
该句意思是：大多数人遭受高温仅会感到肌肉疼痛。as a result of为固定搭配，意思是“作为……的结果”，符合句意。
该句意思是：疼痛是对你身体温度过高的警告。warning意思是“警告”，符合句意。inference推理，推断；need需要；guidance指导。
该句意思是：几个小时内都不要再进行体力活动，否则还会导致更严重的状况。activity意思是“活动”, physical activity意为“体力活动”，符合句意。act行为，行动；action行动；acting演戏。
该句意思是：医生指出，一些人面对高温天气的危险又增加了。increased意思是“增多的，增加的”，符合句意。impossible不可能的；incident偶然的；incredible难以置信的。
该句意思是：炎热天气对于那些必须服药以控制高血压等的人也增加了危险。take medicine意思是“服药”，符合句意。take food吃东西；take water喝水；take meal吃饭。 -
第7题：
单选题—2015 is an El Nino（厄尔尼诺）year．Many places may be short of water．Being a student, I want to do something, but I wonder ______.—Oh, you can do some small things such as turning off the tap while brushing teeth.Awhat I am supposed to do
Bhow should I protect our home
Cwhy it can cause such bad weather
正确答案： A解析：
句意：—2015年是厄尔尼诺年，很多地方可能会缺水。作为一个学生，我想做点什么，但我在想我应该做些什么。—噢，你可以做一些小事情，比如说刷牙的时候关上水龙头。本题考查宾语从句。宾语从句语序应为陈述句语序，可排除B项。A项意为“我应该做什么”。C项意为“为什么它能引起如此恶劣的天气”。根据回答，A项符合对话语境。 -
第8题：
单选题Sacrificial zinc anodes are used on the saltwater side of diesel engine heat exchangers to（）.Areduce electrolytic action on heat exchanger metals
Bkeep heat transfer surfaces shiny and clean
Cprevent rapid accumulation of marine growth
Dprovide a protective coating on heat exchanger surfaces
正确答案： A解析： 暂无解析 -
第9题：
问答题For the last fifty years, the globe has been warming (1)____. It is true that the average temperature (2) r____is only about two degrees, but that has been enough to start the glaciers (3)____(recede) in many parts of the world. A rise of one degree per generation is a large increase. Nature seldom moves as swiftly as this. We may have been helping her. To a very large (4)____, the temperature of the Earth is determined by the amount of solar heat which the atmosphere can (5) ke____ . The air above us sets like the glass in a greenhouse, trapping many of the heat waves which would (6)____bounce back into space. Carbon dioxide in the air is mostly responsible (7)____the “greenhouse effect”; it is a gas produced by all our countless fires, furnaces and internal combustion engines. The end of the short-lived age of fossil fuels is already in (8) si____ ; soon in one or two centuries at the most we will have wasted all the world’s resource of oil and coal. This no longer means disaster, for (9)____(atom) energy has arrived in time to save our civilization from dying through lack of power. We are moving into a brighter and cleaner age, as the smoke of millions of fire and furnaces and automobiles ceases to (10)____(dark) the sky. But for that very reason, it may also be a colder age.正确答案： 1.up 从文章中可以得知全球在变暖,因此是warm up。
2.rise rise上升,可与气温搭配。另外,第二段第一句话里也有rise一词,起提示作用。
3.receding start doing sth.开始做某事,固定搭配。recede向后退,此处意为冰山融化,海平面上升。
4.extent to...extent在某种程度上。
5.keep to keep heat保留住热量。
6.otherwise 要不然,否则。句意:我们上空的大气层就像温室里的玻璃一样能吸收很多本该被反射回太空的热量。
7.for 大气中的二氧化碳是产生温室效应的主要原因。be responsible for对…负责。
8.sight be in sight可见,看得见,在望,不远。
9.atomic atomic energy原子能,核能。
10.darken cease to do sth.停止做某事。因此此处应填dark的动词形式darken。解析： 暂无解析 -
第10题：
填空题By increasing the levels of greenhouse gases in the atmosphere, human activities are strengthening Earth’s natural greenhouse effect.____正确答案： E解析：
由题干中“increasing the levels of greenhouse gases”定位至E段。本的指出，人类活动增加了大气层里温室气体的含量，从而加剧了地球的自然温室效应，故匹配段落为E段。 -
第11题：
单选题Scale accumulation on evaporator heat exchange surfaces （）.Aincreases brine density
Bincreases distillate salinity
Creduces metal corrosion
Dreduces heat transfer
正确答案： C解析： 暂无解析 -
第12题：
填空题El Nino effect may become more frequent and fierce if enough heat could be brought to Pacific waters by the accumulation of greenhouse gases.____正确答案： G解析：
由题干中“El Nino effect”定位至G段。本段讲到，科学家们担心，温室气体的聚集（the accumulation of greenhouse gases）会会给太平洋水域注入大量的热能，导致厄尔尼诺的影响更加的频繁和剧烈。故匹配段落为G段。 -
第13题：
Could I have three waters, please?()
参考答案： 错误
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第14题：
共用题干
EL Nino
While some forecasting methods had limited success predicting the 1997 EL Nino（厄尔尼诺现象，指赤
道东太平洋南美沿岸海水温度剧烈上升的现象。) a few months in advance , the Columbia University
researchers say their method can predict large EL Nino events up to two years in advance.That would be
good news for governments,farmers and others seeking to plan for the droughts and heavy rainfall that EL
Nino can produce in various parts of the world.
Using a computer,the researchers matched sea-surface temperatures to later EL Nino occurrences（发
生）between 1980 and 2000 and were then able to anticipate EL Nino events dating back to 1857,using prior
sea-surface temperatures.The results were reported in the latest issue of the journal Nature.
The researchers say their method is not perfect , but Bryan C. Weare , a meteorologist（气象学家）at the
University of California,Davis,who was not involved in the work,said it"suggests EL Nino is indeed
predictable".
"This will probably convince others to search around more for even better methods,"said Weare.He
added that the new method " makes it possible to predict EL Nino at long lead（提前的）times ". Other
models also use sea-surface temperatures,but they have not looked as far back because they need other data,
which is only available for recent decades,Weare said.
The ability to predict the warming and cooling of the Pacific is of immense importance.The 1997 EL
Nino , for example , caused an estimated $20 billion in damage worldwide , offset（抵消）by beneficial effects
in other areas,said David Anderson,of the European Centre for Medium-Range Weather Forecasts in
Reading , England. The 1877 EL Nino , meanwhile , coincided（同时发生）with a failure of the Indian monsoon
and a famine that killed perhaps 40 million in India and China,prompting the development of seasonal
forecasting,Anderson said.
When EL Nino hit in 1991 and 1997,200 million people were affected by flooding in China alone,
according to a 2002 United Nations report.
While predicting smaller EL Nino events remains tricky（复杂的）, the ability to predict larger ones
should be increased to at least a year if the new method is confirmed.
EL Nino tends to develop between April and June and reaches its peak between December and
February.The warming tends to last between 9 and 1 2 months and occurs every two to seven years.
The new forecasting method does not predict any major EL Nino events in the next two years,although a
weak warming toward the end of this year is possible.In 1997,EL Nino caused about $20 billion in damage worldwide.
A:Right
B:Wrong
C:Not mentioned答案：A解析：利用题干句中的特征词Columbia University researchers作为线索，发现相关句“…the Columbia University researchers say their method can predict large EL Nino events up to two years in advance.”题干句说“提前几个月”，而原文说“最远能提前两年”，由此可见题干句的内容中有 与原文不一致的地方，" a few months in advance”是一个从其他句子中借来的干扰信息，因此判 断题干句不正确。
利用题干句中出现的特征词Weare作为线索查找原文，发现3个相关句，都集中在第3 和第4自然段，但是这些涉及Weare的句子在内容上都没有讲述他是否在预测厄尔尼诺现象 方面做出了贡献，也没有提到他的贡献是否得到了其他气象学家的高度赞扬。由此判断此题 干所述没提到。
利用题干句的特征词Weare作为线索，发现文中相关句“The researchers say their method is not perfect , but Bryan C.Weare , …”可知Columbia University的研究成果并不是目前最 好的预测方法。
利用题干句的特征词1991 and 1997作为线索，发现文中相关句“When EL Nino hit in 1991 and 1997,200 million people were affected by flooding in China alone,according to a 2002 United Nations report.”因此并不是“According to a Chinese report"，由此判断题干句不正确。
利用题干句中关键词1997和＄20 billion为线索，发现相关句“The 1997 EL Nino,for example , caused an estimated $20 billion in damage worldwide …"。题干句的内容与原文一致，因 此判断该句的说法正确。
该题干句内容和结构都较简单，关键词是eight months和peak，借助它们作为线索，找 到倒数第二段的两个相关句，可以推出EL Nino需要大约8个月达到峰值，因此判断该句的说 法正确。
利用题干句的特征词smaller EL Nino作为线索，发现文中相关句“While predicting smaller EL Nino events remains tricky , the ability to predict larger ones…"，故题干句的内容与原 文有悖。第3部分：概括大意与完成句子 -
第15题：
共用题干
第二篇
Around 45%of the UK's carbon dioxide emissions come from the energy people use every day-at home and when they travel.In order to generate that energy,fossil fuels(coal oil,and gas)are burnt,and these produce greenhouse gases-in particular carbon dioxide(CO2).Car emissions are a major problem, but the truth is that more CO2 comes from the energy used at home.The average household creates around
five and a half tonnes of CO2 a year,and it is the same CO2 that is changing the climate and damaging the environment.
CO2 and various other gases wrap the earth in an invisible blanket helping to prevent heat from escaping.Without this greenhouse effect,the average temperature on Earth would be around-18℃， compared with the current average of around+15℃．The composition of this blanket of gases has remained relatively constant for many thousands of years.However,since the industrial revolution began around 200 years ago,people have been burning increasing amounts of fossil fuels,thus releasing more CO2 and other greenhouse gases in the process.This has increased the heating effect of the blanket,trapping more of the sun's energy inside the Earth's atmosphere in turn the Earth's temperature has increased more rapidly in a shorter period of time than it has for thousands of years.
In 2008,the total UK CO2 emissions were 533 million tonnes.27%(144 million tonnes)of those emissions came from the energy used to heat,light,and power homes.Transport emissions caused by passenger cars,buses and motorcycles accounted for a further 16%(87 million tonnes)of the UK's CO2 emissions.These figures show that a significant amount of CO2 results from ordinary citizens carbon footprint in their daily activities and lifestyle.
The effects of climate change can be seen all around us.Weather patterns are becoming more and more fractured and uncertain,and over the last century trends in warm weather have become increasingly common.In the UK in the last 40 years,winters have grown warmer,with much heavier rainfall.One of the clearest shifts over the last 200 years is towards summers that are hotter and drier,causing pervasive（普遍的）water shortages.Recent years have been the hottest since records began and during August 2003,the hottest ever outdoor temperature in the UK was recorded-38.5℃．What is the author's main aim?
A:To explain the greenhouse effect.
B:To describe the effects of climate change in the UK.
C:To show how much CO2 is produced by ordinary people's activities.
D:To illustrate how industrial activity creates the greenhouse effect.答案：C解析：本文以英国的情况为例，主要讲述了人们在日常生活中排出大量二氧化碳气体及这种情次对地球环境的影响。文章以英国二氧化碳气体的排放来源展开论述，指出由于人们活动消耗能源，使得大气中产生大量的二氧化碳。并通过具体数据来论述人类的日常活动排放的大量二氧化碳及其对气候所产生的不良影响。故本题选C。
由文章第一段第三句和第四句话的内容可知，家庭排放的二氧化碳气体占据二氧化碳排放量的主要部分，比汽车排放的多，故选C。
由文章第三段中的内容可知，2008年，在英国有16％的二氧化碳气体来自于交通工具的排放，这和D项意思相符，故选D。
文章第四段第三句话中提到，在过去40年里，英国的冬天变得更暖，降雨也更加猛烈， A、B、D三项的内容文中均未提及，故选C。
由第36题的解析可知，文章主要围绕在英国人们日常生活所排放的大量二氧化碳气体及其对气候的影响来展开。故本题最佳答案为B。 -
第16题：
Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico.
Eleven gray whales have died in the San Francisco Bay in the last three weeks．No one knows why the whales are dying.
Last year 270 whales died along the whales'migration route．Many people think starvation is the cause．This year the dead whales seem to have more blubber(fat)on them.
Twenty years ago,the gray whale was listed as an endangered species.
Some scientists think that the larger number of whales makes it hard to find enough food．More whales create more pressure on the food supply,a supply that some scientists say may have dwindled as a result of the warm waters of El Nino.
Most of the whales have been dead for many days before they are found and studied．This makes it hard to find the reason for death.
65 whales have been seen in the San Francisco Bay Area this year compared to 17 last year．The whales could be dying from many diseases,but it may be over-population．
Why might the increasing number of whales cause problems with their health?A.There's not enough room for them in Alask
B.There may not be enough food for them in Alask
C.They get pushed ashor
D.There are more whales to spread diseas答案：B解析：由倒数第三段可知。 -
第17题：
Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico.
Eleven gray whales have died in the San Francisco Bay in the last three weeks．No one knows why the whales are dying.
Last year 270 whales died along the whales'migration route．Many people think starvation is the cause．This year the dead whales seem to have more blubber(fat)on them.
Twenty years ago,the gray whale was listed as an endangered species.
Some scientists think that the larger number of whales makes it hard to find enough food．More whales create more pressure on the food supply,a supply that some scientists say may have dwindled as a result of the warm waters of El Nino.
Most of the whales have been dead for many days before they are found and studied．This makes it hard to find the reason for death.
65 whales have been seen in the San Francisco Bay Area this year compared to 17 last year．The whales could be dying from many diseases,but it may be over-population．
About how many more whales have been sighted in the San Francisco Bay this year compared to last year?A.Twice as man
B.Three times as man
C.Half as man
D.About the sam答案：B解析：由最后一段可知。今年在旧金山海湾地区看到了65只鲸，去年是17只。所以今年大约是去年的三倍。 -
第18题：
Directions: Nowadays, with thedevelopment of technology, e-books have become more and more frequent. Somepeople believe that e-books will replace traditional books. What is your opinion?Please write a composition entitled "Will E-books Replace TraditionalBooks?" in English within 180 words, but no less than 150 words.答案：解析：Will E-books Replace Traditional Books? There is no denyingthe fact that e-books have gained increasing popularity in the past years alongwith the development of information technology. Actually, modem readers seem tospend more time on e-books than on traditional ones.
As a consequence, ithas emerged as a hotly debated topic whether e-books will take the place oftraditional books in the future. Some hold the positive view. They claim thatit is natural for books to become electronic as mankind steps into a digitalage. Compared with traditional books, e-books have some obvious advantages. Forone thing, it is convenient to read online as modem people have easy access tothe Interact. For another, reading e-books saves money.
Personally, Ibelieve that e-books cannot replace all traditional books. Firstly, you canmark a traditional book and write your comments in the margin but you can hardlydo that on e-books. Secondly, for many people, only the smell of print and thefeel of paper can provide, the true sense of reading and learning. Therefore,in my opinion, traditional books will still exist in the future. -
第19题：
填空题Each greenhouse gas has a distinctive ability to absorb heat in the atmosphere.____正确答案： C解析：
由题干中“Each greenhouse gas”“distinctive ability”定位至C段。本段讲到，每一种温室气体在吸收空气中热量方面的能力都不相同（differs in its ability to absorb heat in the atmosphere），故匹配段落为C段。 -
第20题：
填空题In the past few years, traffic problems (become) ____ more and more serious.正确答案： have become解析：
本题考查完成时态用法。句意：在过去的几年里，交通问题变得越来越严重了。时间状语in the past few years提示，此处要选择现在完成时态。故填入have become。 -
第21题：
单选题Outbreak of small-arms fire along the frontier became more frequent in May but _______ officially investigated.Ahardly any such incidents were
Bhardly were any such incidents
Chardly were such any incidents
Dhardly such any incidents were
正确答案： B解析：
边境小范围的交火成了五月份司空见惯的事情，官方很少调查这些事情。在but后面采用hardly引导从句时要采用倒装语序。当any和such一起修饰名词时，采用any such+n的形式，故B正确。 -
第22题：
单选题What could a person attending the seminar hope to learn?AHow to become more productive
BHow to own a company
CHow to become a better salesperson
DHow to give a better effort
正确答案： D解析：
本篇文章的主题是通知“以最大的努力获取最优效果”的研讨会，提到研讨会希望所有人员参加，以自己的努力去的最优效果，因此参加这次研讨会的人是想要学习提高生产率的方法。故A项符合题意。 -
第23题：
填空题This medicine is highly (effect) ____ in treating skin cancer if it is applied early enough.正确答案： effective解析：
本题考查词性转换。句意：这种药物如果能早日投入使用的话，在治疗皮肤癌方面成效会非常大。本句为主系表结构，但是缺少表语，需要把名词effect转换为形容词effective。 -
第24题：
单选题Which of the following is INCORRECT according to the passage?ACognition enhancers may be used as coffee as today.
BIt could become as common as a cup of coffee.
CIt may help people sleep more efficiently.
DThis kind of drugs is as tasty as coffee.
正确答案： D解析：
推理判断题。作者把这种药物和咖啡比较，是为了说明这种药物会非常普遍，就像现在的咖啡，但没有说它和咖啡一样美味，所以选D。