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1、2022年山西省临汾市大学英语6级大学英语六级测试卷(含答案)学校:_ 班级:_ 姓名:_ 考号:_一、2.Reading Comprehension (Skimming and Scanning)(20题)1. Which of the following provides dinner cruises now?A.The Potomac RiverB.Boston HarborC.The Chicago RiverD.The Mississippi River2. You should pay special attention to the first six questions of
2、the 12 questions because they make up the base on which _.3.Experts advocate that elderly people should emphasize mental health as well as _.4.The researchers are now trying to figure out _.A.whether observed antibodies can block the infection of HIVB.whether the combination of vaccines stimulates n
3、ew moleculesC.whether the combination of vaccines can work wellD.whether the combination of vaccines could be tested in normal people5.It is necessary for us to know healthy weight is not _.6.Your address, phone number, social security number, full name or place of employment should not be made know
4、n to all because they are _.7.Students in Harvard are encouraged to use bulbs of 18 watts apiece.A.Y B.N C.NG8.Food style. originated from _ is very popular nowadays in American parties.9.The low confidence level of consumers and producers is one of the general factors of a recession.A.Y B.N C.NG10.
5、In order to make sure their customers were happy, Pizza Hut introduced_.A.two customer satisfaction programsB.a 1-600 number customer hotlineC.a customer call-in programD.happy customers program11.The grass-fed-beef burgers in the Yale Sustainable Food Project have been bought from _.12.An insurance
6、 company can estimate with some accuracy how many will have losses by_.13.Scientists and environmentalists think that global warming can be _.A.continued B.improved C.controlled D.reduced14.Climate ChangeScientists predict increasing droughts, floods and extreme weather and say there is growing evid
7、ence that human activities are to blame.What Is Climate Change?The planets climate is constantly changing. The global average temperature is currently in the region of 15. Geological and other evidence suggests that, in the past, this average may have been as high as 27 and as low as 7.But scientist
8、s are concerned that the natural fluctuation (波动) has been overtaken by a rapid human-induced warming that has serious implications for the stability of the climate on which much life on the planet depends.What Is the Greenhouse Effect?The greenhouse effect refers to the role played by gases which e
9、ffectively trap energy from the Sun in the Earths atmosphere. Without them, the planet would be too cold to sustain life as we know it.The most important of these gases in the natural greenhouse effect is water vapor, but concentrations of that are changing little and it plays almost no role in mode
10、m human-induced greenhouse warming.Other greenhouse gases include carbon dioxide, methane (甲烷) and nitrous (含氮的) oxide, which are released by modern industry, agriculture and the burning of fossil fuels. Their concentration in the atmosphere is increasingthe concentration of carbon dioxide has risen
11、 by more than 30% since 1800.The majority of climate scientists accept the theory that an increase in these gases will cause a rise in the Earths temperature.What Is the Evidence of Warming?Temperature records go back to the late 19th century and show that the global average temperature increased by
12、 about 0.6 in the 20th century.Sea levels have risen 1020 cmthought to be caused mainly by the expansion of warming oceans.Most glaciers in temperate regions of the world and along the Antarctic Peninsula are in retreat, and records show Arctic sea-ice has thinned by 40% in recent decades in summer
13、and autumn.There are anomalies (异常) howeverparts of. the Antarctic appear to be getting colder, and there are discrepancies between trends in surface temperatures and those in the troposphere(对流层) (the lower portion of the atmosphere).How Much Will Temperatures Rise?If nothing is done to reduce emis
14、sions, current climate models predict a global temperature increase of 1.45.8 by 2100.Even if we cut greenhouse gas emissions dramatically now, scientists say the effects would continue because parts of the climate system, particularly large bodies of water and ice, can take hundreds of years to res
15、pond to changes in temperature. It also takes greenhouse gases in the atmosphere decades to break down.It is possible that we have already irrevocably(不可撤回地) committed the Greenland ice sheet to melting, which would cause an estimated 7m rise in sea level. There are also indications that the west Antarctic ice sheet may have begun to melt. though scientists caution further research is necessary.How Will the Weather Change?Globally, we can expect more extreme weather events, with heat waves becoming hotter and mor
