单选题Which of the following best summarizes the main idea of the passage?A Plant Breeders’ dream will come true.B Converting sugars from crops is a threat to the food supply.C The research on the high energy plant is being done.D Cost-effective biofuels are
题目
Plant Breeders’ dream will come true.
Converting sugars from crops is a threat to the food supply.
The research on the high energy plant is being done.
Cost-effective biofuels are very popular now.
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更多“单选题Which of the following best summarizes the main idea of the passage?A Plant Breeders’ dream will come true.B Converting sugars from crops is a threat to the food supply.C The research on the high energy plant is being done.D Cost-effective biofuels are”相关问题
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第1题：
A small amount of spoofed packets are being sent across a network and a large amount of reply packets are being sent back to the network resource. Which of the following BEST describes this security threat?（）
A.Worm
B.Smurf
C.Logic Bomb
D.Man-in-the-middle
参考答案：B
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第2题：
A small amount of spoofed packets are being sent across a network and a large amount of reply packets are being sent back to the network resource. Which of the following BEST describes this security threat?（）
- A、Worm
- B、Smurf
- C、Logic Bomb
- D、Man-in-the-middle
正确答案:B -
第3题：
单选题Which of the following can best summarize Sallon’s Plant Project?ADiscovering new species.
BProtecting rare species.
CRestoring extinct species.
DReforming existing species.
正确答案： B解析：
倒数第二段说很多物种已经濒危或即将灭绝，等它们不存在之后再想种植是非常困难的，所以最好在它们灭绝之前保护它们，即保护珍稀物种。 -
第4题：
单选题According to the passage, which of the following statements is TRUE?ABuy Nothing Day has become popular in the United States.
BRestaurants have a tradition of donating food on holidays.
CGirl shops are expected to be closed on Buy Nothing Day.
DChildren like the idea of Buy Nothing Day best.
正确答案： D解析：
判断推理题。题目询问“根据文章，下列哪项说法是正确的？”从文章的第二段第四句“Now people all over the United States celebrate Buy Nothing Day”可知，现在美国人都在庆祝“不购物日”。正确答案为A。 -
第5题：
单选题What is the main idea of the passage?AThe delicacy of the Chinese restaurant in Singapore.
BThe advantages and disadvantages of living in a cosmopolitan city.
CThe danger and threat of population explosion in urban areas.
DThe high living standard of Singapore, London, Paris and New York.
正确答案： C解析：
主旨题。录音开头讲话者便表示自己在一个世界性城市——新加坡，生活了五年，接着表明自己很喜欢那里的生活方式，并以事例进行具体说明。然后，讲话者承认住在这样的城市也有不利之处，并作了具体阐释。由此可见，该段录音主要介绍了住在世界性大城市的优点和弊端。因此选项B能全面概括录音的主要内容。
【录音原文】
For five years I lived in Singapore, a metropolis of almost three million people. Like London, Paris and New York, Singapore is a cosmopolitan city, with people from different parts of the world living and working together. I enjoyed the urban lifestyle I led there, and made the most of the super amenities, ranging from the excellent shops to some of the best restaurants in the world. In the evenings and at weekends there were always cultural events, with such diverse attractions as classical Western music, and exhibition of Malay art or a Chinese opera in the street, it was difficult to get bored. Perhaps most impressive, however, was the remarkable transport infrastructure, with excellent roads, a swift and efficient bus service and a state-of-the-art underground system which could whisk commuters from the suburbs straight into the heart of the city. This is particularly important, as the government banned private cars from entering the central business district during the morning and afternoon rush hours to reduce congestion on the roads and pollution from the exhausts.
Of course, living in a city like this has its disadvantages as well. For a start, the cost of living can be very high—renting an apartment, for example, is very expensive. And as the city is expanding, there are a lot of building sites where new apartments are continually being built to deal with the population explosion which is a direct result of the government encouraging people to have more children. -
第6题：
单选题Which of the following is operated from the main engine room console on an automated vessel?（）AFire pump and lube oil pump
BLube oil pump and distilling plant
CDistilling plant and shaft alley door
DShaft alley door and fixed CO2 release
正确答案： B解析： 暂无解析 -
第7题：
多选题Consider each of the choices separately and select all that apply. Which of the following inferences can be made the information given in the passage?ALeonard Fuchs probably never actually saw a fuchsia plant.
BCharles Plumier was a student of Fuchs’s at Tubingen.
CPlumier’s book of plants included species from the Caribbean.
正确答案： A,C解析：
Leonard Fuchs是153-1566的德国医学家，而fuchsia是1703年才出现在欧洲大陆上，所以A项是正确的。由于Hispaniola是加勒比海的一部分，所以C项也是正确的。 -
第8题：
单选题Why switch grass and Miscanthus were taken as energy plant?ABecause they contain more cellulose.
BBecause genomes have been sequenced for clues to make other plants better energy crops.
CBecause some scientists are breeding a wide variety o[Candidate crops.
DBecause the spotlight is on this underdeveloped field.
正确答案： A解析：
事实细节题。由题干关键词switch grass and Miscanthus定位至第三段。由段中switch grass and Miscanthus, both considered good candidates for energy crops because of their high cellulose content.可直接判断A正确。 -
第9题：
单选题Which of the following is the best title for the passage?AThe Main Experts of America
BThe Computer TakeBack Campaign
CThe Harm of E-waste Treatment
DElectric Waste-a Global Problem
正确答案： B解析： -
第10题：
单选题Concerning the management of sewage treatment plant using activated sludge, which of the following is correct?（）Athe plant should be prohibited to supplying air
Bthe plant should work at intervals
Cthe plant should be added disinfector in time
Dwe should check strength of activated sludge, ivory-white color is best
正确答案： D解析： 暂无解析 -
第11题：
单选题In the United States, both genomicists and plant scientists want to find out ______.Athe way converting sugars from crops such as corn or sugarcane to ethanol.
Bhow to process cellulose from the cell walls of stems and leaves.
Chow to increase the oil content of oil-producing crops.
Dhow to make high-energy plants.
正确答案： D解析：
推断判断题。由题干Genomicists and plant scientists定位至第二段。由本段末句中to figure out the species with the best biofuel potential and how to wring more energy out of each acre planted可知他们要找到最好的潜在生物燃料种类以及怎样从每亩田当中得到更多的能量。可推断D符合题意，正确；文中是wring more energy而不是converting sugars,process cellulose, increase the oil content故排除A、B和C。 -
第12题：
单选题A small amount of spoofed packets are being sent across a network and a large amount of reply packets are being sent back to the network resource. Which of the following BEST describes this security threat?（）AWorm
BSmurf
CLogic Bomb
DMan-in-the-middle
正确答案： D解析： 暂无解析 -
第13题：
Which of the following can best summarize the main idea of this text?（ ）
[A] The moral decaying deserves more research by sociologists.
[B] Marriage break-up stems from sex inequalities.
[C] Husband and wife have different expectations from their marriage.
[D] Conversational patterns between man and wife are different.
正确答案：D
下列哪一项最能概括本文的中心大意?
[A]道德沦丧值得社会学家做更多的研究。
[B]性别不平等导致婚姻破裂。
[C]丈夫和妻子对于婚姻的期望值各有不同。
[D]丈夫和妻子之间的对话模式是不一样的。
答案解析：[D]主旨大意题。本题考查的是综合理解能力。本文从作者的一次家庭聚会经历引 出男性在家庭内外的交流存在差别的讨论，而这种差别，即男性和女性的交流模式存在不同，会影响到婚姻的成功，故[D]正确。[A]在文中未提及；[B]与第四段内容不符；[C]在第四段后半部分提到，但不是文章主旨。 -
第14题：
单选题Which of the following is the best title for the passage?ASolar Power
BSchools Go Solar
CCheap Energy Sources
DA Global Perspective
正确答案： C解析： -
第15题：
单选题Which of the following best describes the relationship between Passage 1 and Passage 2?APassage 2 offers a criticism of the political theory outlined in Passage 1.
BPassage 1 expands upon an argument made in Passage 2.
CPassage 1 refutes the conclusion drawn in Passage 2.
DPassage 2 offers a balanced counterpoint to the biased opinions expressed in Passage 1
EPassage I offers evidence to support the main idea of Passage 2.
正确答案： E解析：
第一篇文章简短地描述了遏制政策。第二篇文章主要讲的是美国之所以没能稳定越南局势是因为美国使用了遏制政策。A项最好的解释了两篇文章的关系。 -
第16题：
单选题Which of the following best summarizes the main idea of the passage?APlant Breeders’ dream will come true.
BConverting sugars from crops is a threat to the food supply.
CThe research on the high energy plant is being done.
DCost-effective biofuels are very popular now.
正确答案： D解析：
主旨大意题。本题需根据全文内容综合把握。文章首段讲到育种学家们正在考虑生成两种成本效益好的生物燃料作物，然后讲到科学家们是怎样想办法研制出更好的燃料作物，最后讲到该研究正处于发展阶段，故C和文章主题符合，故为答案。 -
第17题：
单选题Which of the following activities can be used to get the main idea of a passage? _____.Areading the passage in detail
Breading to sequence the events
Creading to fill in the charts
Dreading the first and last sentences of the passage and the paragraphs
正确答案： B解析：
阅读段落的第一句话和最后一句话便可大致判定段落主旨。 -
第18题：
单选题Which of the following statements is closest in meaning to that expressed in the passage?AThere are very few technologies that are currently held as controversial.
BCritics object to genetically modified (GM) crops grown in many different countries in Europe.
CA main objection against GM food is that it is not naturally produced.
DThe transportation of such crops across the Spanish borders is difficult.
正确答案： C解析：
该段录音主要描述转基因作物备受争议，其中批评者普遍给出的一个原因是“they are unnatural”，对应选项C。
【录音原文】
Few technologies are currently as controversial as genetically modified (GM) crops. Critics, particularly in Europe, object to them on many grounds. A common objection is that they are unnatural, because they often involve the transplantation of genes from entirely different species. -
第19题：
单选题We may infer from the fourth paragraph that ______.Ahumans have been growing food crops more than ten thousand years.
Bhumans have learned how to produce biofuels for a long time.
Chumans are just on the beginning of making biofuels.
Da cell wall includes four hemicellulose.
正确答案： C解析：
推断判断题。由题干定位至第四段。由首句Humans have been growing food crops for 10,000 years可知，A中more than与原文不符，故排除；由but the effort to produce fuel down on the farm is in its fancy可见B错；由段中 We’re at such a basic stage，可知，从作物提取燃料还处于初级阶段，C正确；由本段倒数第二句可知cell walls是由four hemicelluloses, along with cellulose and lignin构成，并且由a cell wall engineered to include more hemicellulose可知一个细胞壁不仅仅只有four hemicellulose(半纤维素), 排除D。 -
第20题：
单选题A new virus is spreading via email and exploits an old vulnerability in a company’s main OS.Which of the following BEST helps to mitigate this type of threat（）AIncident response
BAsset management
CPatch management
DPolicies and procedures
正确答案： D解析： 暂无解析 -
第21题：
单选题Which of the following may cause that the compressor cuts off on high pressure cutout in a refrigeration plant? （） (1) faulty condensing (2) too few refrigerant (3) high discharge pressureAany of (1) and (3)
Bany of (1) and (2)
Cany of (2) and (3)
Dany of (1), (2) and (3)
正确答案： A解析： 暂无解析 -
第22题：
单选题Which of the following best states the main idea of the passage?AWhat we don’t know about fever.
BThere are benefits to developing fevers.
CFevers inhibit bacterial growth.
DLizards can develop fevers.
正确答案： C解析：
主旨题。文章三段依次讲了我们之前所了解甚少的关于发烧的几个层面，如：冷血动物也会发烧；无脊椎动物也会发烧；发烧的好处。因此正确答案为A。 -
第23题：
单选题The sentence “visions of squat poplars and earless corn stalks are dancing in their heads” (Lines 2-3, Para.1) probably means ______.Asquat poplars and earless corn stalks are too difficult to realize.
Bsquat poplars and earless corn stalks are all illusions to the Plant Breeders.
Cthe Plant Breeders are thinking of the realization of squat poplars and earless corn stalks.
Dthe Plant Breeders are helpless with the squat poplars and earless corn stalks.
正确答案： C解析：
事实细节题。由题干定位至第一段。由本段第二句visions of squat poplars and earless corn stalks are dancing in their heads.可知植物育种家们正在酝酿实现这两种产品，故排除B，C正确；A和D在文中未提及，故排除。 -
第24题：
单选题Which of the following sentences is the main idea of this passage?AChildren in the Old Country are not as happy as their counterparts in America.
BAmerica is a country in which the concept of children is more emphasized than any other countries in the world.
CAdults in America are becoming increasingly useless.
DAdults should learn from their children because they are more energetic.
正确答案： C解析：
文章主旨题。该篇文章主要讲述了“孩子”这一概念从不存在到在美国的普遍使用，文章中指出美国是个孩子的王国，以孩子为中心，结合第四段第二句提到的“America is the greatest country in the world to grow up in because it is Kids Country.”可知它比其他国家更注重“孩子”的概念。因此选B。