职称英语理工类完形填空考前背诵版.docx

1、职称英语理工类完形填空考前背诵版第一篇 Captain Cook Arrow LegendIt was a great legend while it lasted，but DNA testing has (1) finallyended a two-century-old story of the Hawaiian arrow carved from the bone of British explorer Captain James Cook(2) whodied in the Sandwich Islandsin 1779.“There is (3) noCook in the Aust

2、ralian Museum，museum collection manager Jude Philip said not long ago in announcing the DNA evidence that the arrow was not made of CookSbone.But that will not stop the museum from continuing to display the arrow in its(4) exhibition，“Uncovered：Treasures of the Australian Museum,” which(5) doesinclu

3、de a feather cape presented to Cook by Hawaiian King Kalaniopuu in 1778.Cook was one of Britains great explorers and is credited with(6) discoveringthe“Great South Land，(7) nowAustralia, in 1 770.He was clubbed to death in the Sandwich Islands，now Hawaii。The 1egend of Cooks arrow began in 1824 (8) w

4、henHawaiian King Kamehameha on his deathbed gave the arrow to William Adams，a London surgeon and relative of Cooks wife，saying it was made of Cooks bone after the fatal(9) fightwith islanders.In the 1890s the arrow was given to the AustralianMuseum and the legend continued (10) untilit came face=to-

5、face with science.DNA testing by laboratories in Australia and New Zealand revealed the arrow was not made of Cooks bone but was more (11) likelymade of animal bone。said Philp.However, Cooks fans (12) refuseto give up hope that one Cook legend will prove true and that part of his remains will still

6、be uncovered.as they say there is evidence not a11 of Cooks body was (13) buried at sea in 1 779.“On this occasion technology has won，”said Cliff Thornton，president of the Captain Cook Society, in a (14) statementfrom Britain.“But I am (15) surethat one of these daysone of the Cook legends will prov

7、e to be true and it will happen one day.第二篇 Avalanche and Its SafetyAn avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are (1)amongthe biggest dangers in the mountains for both life and property.All avalanches are caused by an over-burden

8、 of material, typically snowpack, that is too massive and unstable for the slope (2) that supports it. Determining the critical load, the amount of over-burden which is (3)likely to cause an avalanche, (4) is a complex task involving the evaluation of a number of factors.Terrain slopes flatter than

9、25 degrees or steeper than 60 degrees typically have a low (5)risk of avalanche. Snow does not (6)gather significantly on steep slopes; also, snow does not (7)flow easily on flat slopes. Human-triggered avalanches have the greatest incidence when the snows angle of rest is (8)between 35 and 45 degre

10、es; the critical angle, the angle at which the human incidence of avalanches is greatest, is 38 degrees. The rule of thumb is: A slope that is (9)flat enough to hold snow but steep enough to ski has the potential to generate an avalanche, regardless of the angle. Additionally, avalanche risk increas

11、es with (10)use ; that is, the more a slope is disturbed by skiers, the more likely it is that an avalanche will occur. Due to the complexity of the subject, winter travelling in the backcountry is never 100% safe. Good avalanche safety is a continuous (11)process , including route selection and exa

12、mination of the snowpack, weather (12)conditions , and human factors. Several well-known good habits can also(13) reduce the risk. If local authorities issue avalanche risk reports, they should be considered and all warnings should be paid (14)attention to. Never follow in the tracks of others witho

13、ut your own evaluations; snow conditions are almost certain to have changed since they were made. Observe the terrain and note obvious avalanche paths where plants are （15）missingor damaged. Avoid traveling below others who might trigger an avalanche.第三篇Giant StructuresIt is an impossible task to se

14、lect the most amazing wonders of the modern world since everyyear more1wonderful constructions appear. Here are three giant structures which are worthy of our2 admirationalthough they may have been surpassed by some more recent wonders.The Petronas Twin Towers1The PetronasTowers were the tallest bui

15、ldings in the world when they were completed in1999. With a3 heightof 452 metres,the tall twin towers,like two thin pencils,dominate the cityof Kuala Lumpur2. At the 41st floor,the towers are linked by a bridge,symbolizing a gateway to thecity. The American4 architectCesar Pellidesigned the skyscrap

16、ers.Constructed of high-strength concrete,the building provides around l, 800 square metres ofoffice space5 onevery floor. And it has a shopping centre and a concert hall at the base.Other6 featuresof this impressive building include double-decker lifts, and glass and steelsunshades.The Millau Bridg

17、e3The MillauBridge was opened in 2004 in the TarnValley, in southern France. 7 At the time it was built,it was the worlds highest bridge,8 reachingover 340m at the highest point. The bridge is described as one of the most amazingly beautiful bridges in the world. It was built to9relieveMillaus conge

18、stion problems. The congestion was then caused bytraffic passing from Paris to Barcelona in Spain. The bridge was built to withstand the10 mostextreme seismic and climatic conditions. Besides,it is guaranteed for 120 years!The Itaipu Dam4 The Itaipu hydroelectric power plant is one of the largest co

19、nstructions of its kind in the world.It consists of a series of dams across the River Parana5,11 which forms a natural border betweenBrazil6 and Paraguay. Started in 1975 and taking 16 years to complete,the construction was carriedout as a joint project between the two12 countries.The dam is well-kn

20、own for both its electricityoutput and its size. In 1995 it produced 78% 0f Paraguays and 25% 0f Brazils13 energyneeds.In itsconstruction,the14 amountof iron and steel used was equivalent to over 300 Eiffel Towers8.It is a15 truly amazing wonder of engineering.第四篇 Animals “Sixth Sense”A tsunami was

21、triggered by an earthquake in the Indian Ocean in December, 2004. It killed tens of thousands of people in Asia and East Africa. Wild animals, （1）however, seem to have escaped that terrible tsunami. This phenomenon adds weight to notions that I they possess a “sixth sense” for （2）disasters, experts

22、said.Sri Lankan wildlife officials have said the giant waves that killed over 24,000 people along the Indian Ocean islands coast clearly （3）missed wild beasts, with no dead animals found.“No elephants are dead, not （4）even dead rabbit. I think animals can （5）sense disaster. They have a sixth sense.

23、They know when things are happening.” H.D. Ratnayake, deputy director of Sri Lankas Wildlife Department, said about one month after the tsunami attack. The （6）waves washed floodwaters up to 2 miles inland at Yala National Park in the ravaged southeast, Sri Lankas biggest wildlife （7）reserve and home

24、 to hundreds of wild elephants and several leopards.“There has been a lot of （8）apparent evidence about dogs barking or birds migrating before volcanic eruptions or earthquakes. But it has not been proven,” said Matthew van Lierop an animal behavior（9）specialist at Johannesburg Zoo.“There have been

25、no （10）specific studies because you cant really test it in a lab or field setting2,” he told Reuters. Other authorities concurred with this （11）assessment.“Wildlife seem to be able to pick up certain （12）phenomenon, especially birds there are many reports of birds detecting impending disasters,” sai

26、d Clive Walker, who has written several books on African wildlife.Animals （13）certainly rely on the known senses such as smell or hearing to avoid danger such as predators.The notion of an animal “sixth sense”-or （14）some other mythical power-is an enduring one3 which the evidence on Sri Lankas rava

27、ged coast is likely to add to.The Romans saw owls （15）as omens of impending disaster and many ancient cultures viewed elephants as sacred animals endowed with special powers or attributes.第五篇 Singing Alarms Could Save the BlindIf you cannot see, you may not be able to find your way out of a burning

28、building - and that could be fatal. A company in Leeds could change all that （1）with directional sound alarms capable if guiding you to the exit.Sound Alert, a company （2）run by the University of Leeds, is installing the alarms in a residential home for （3）blind people in Sommerset and a resource ce

29、ntre for the blind in Cumbria.（4）The alarms produce a wide range of frequencies that enable the brain to determine where the （5）sound is coming from.Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be （6）heard by humans. “Its a burst of white noise （7）that

30、people say sounds like static on the radio,”she says. “Its life-saving potential is great.”She conducted an experiment in which people were filmed by thermalimaging cameras trying to find their way out of a large （8）smoke-filled room. It （9）took them nearly four minutes to find the door （10）without

31、a sound alarm, but only 15 seconds with one.Withington studies how the brain （11）processes sounds at the university. She says that the （12）source of a wide band of frequencies can be pinpointed more easily than the source of a narrow band. Alarms （13）based on the same concept have already been insta

32、lled on emergency vehicles.The alarms will also include rising or falling frequencies to indicate whether people should go up （14）or down stairs. They were（15）developed with the aid of a large grant from British Nuclear Fuels.第六篇 Car Thieves could Be Stopped RemotelySpeeding off in a stolen car, the thief thinks he has got a great catch. But he is in a nasty surprise. The car is fitted with a remote immobilizer and a radio signal from a control center miles away will ensure that once the thief switches the engine 1off , he will not be able to start it agai