单选题Inspecting a Used Car The scariest part of buying a used car is not being completely sure of what condition it's in. A. car that's been in a major accident is always a bigger risk, but sellers often try to hide this information. Andrew Bleakley, evaluator-inspector, runs a mobile vehicle inspection service in Montreal. For about $ 80 he will perform a full, unbiased inspection on a used vehicle, In his 10 years as a professional inspector, Bleakley has seen a lot. He warns , "Watch out for dealer demonstration vehicles which are used, not new. They may have been in a collision. " He adds that it is not uncommon in Ontario and Quebec especially for unscrupulous sellers to roll back the odometer or to even disengage it. Bleakley has special tools-to check for this. Bleakley always recommends hiring an independent technician to inspect the condition of a used car before you buy it. The problem is finding someone qualified to do the inspection, which he says generally doesn't mean just any mechanic. A. thorough mechanical inspection includes checking the compression, all major systems, including the engine, electrical and charging systems, transmission and drive line, fluids, brakes, suspension, and steering. Essential, too, is an inspection of the car's body and finally a road test. There are , however, a few things everyone can do before buying a used car: Do a visual check of the car. Look at the right rear door hinges. If they are very worn, or the door doesn't close well, the car may have been used as a taxi. Holes in the roof could mean the car was used for deliveries. Check for oil leaks on the pavement. Note that leaks are not necessarily a significant problem—it depends on the cause. Don't assume that new-looking brake and accelerator pedals mean the car hasn't been driven much. Resellers know people check these details and can buy new pads for around $ 6. Copy down the vehicle identification number (VIN), a 17-character, combination of numbers and letters, from the vehicle's dashboard. In Ontario, ask the dealer or seller for the Used Vehicle Information Package. This gives details of previous owners, any outstanding liens on the car, and the fair market value of the vehicle.

单选题Techniques to harness the energy of the sun are being developed.

单选题Examination papers of the class were marked {{U}}without bias{{/U}}. A. immediately B. correctly C. fairly D. carefully

单选题Many new chances will be opened up in the future for those with a university education.

单选题Do you have any pen friends?A. childrenB. palsC. writersD. students

单选题 The Industrial Age and Employment The industrial age has been the only period of human history in which most people's work has taken the form of jobs. The industrial age may now be coming to an end, and some of the changes in work patterns which it brought may have to be reversed. This seems a daunting thought. But, in fact, it could offer the prospect of a better future for work. Universal employment, as its history shows, has not meant economic freedom. Employment became widespread when the enclosures of the 17th and 18th centuries made many people dependent on paid work by depriving them of the use of the land, and thus of the means to provide a living for themselves. Then the factory system destroyed the cottage industries and removed work from people's homes. Later, as transport improved, first by rail and then by road, people commuted longer distances to their places of employment until, eventually, many people's work lost all connection with their home lives and the places in which they lived. Meanwhile, employment put women at a disadvantage. In pre-industrial times, men and women had shared the productive work of the household and village community. Now it became customary for the husband to go out to paid employment, leaving the unpaid work of the home and families to his wife. Tax and benefit regulations still assume this norm today, and restrict more flexible sharing of work roles between the sexes. It was not only women whose work status suffered. As employment became the dominant form of work, young people and old people were excluded—a problem now, as more teenagers become frustrated at school and more retired people want to live active lives. All this may now have to change. The time has certainly come to switch some effort and resources away from the idealist goal of creating jobs for all, to the urgent practical task of helping many people to manage without full-time jobs.

单选题Laser beams can be used to bore metals and other hard materials.

单选题The curious look from the strangers around her made her feel uneasy.

单选题I think their plan will work, but they themselves are very suspicious about it.A. certainB. worriedC. confidentD. dnllbflul

单选题The author brushed his teeth over and over

单选题A crowd gathered to see what had happened.

单选题Who takes the Olympic oath?

单选题Children don't ______ understand what are reciting, but gradually it will have in impact on thinking.A. necessarilyB. profitablyC. unnecessarilyD. unprofitably

单选题The compact dictionaries published in recent years are not as {{U}}unwieldy{{/U}} as some of the older editions.

单选题Richard Wagner Richard Wagner (1813 ~ 1883) is regarded by many 【51】 "The Revolutionist of Opera, "who demolished all old forms, and who reconstructed the music drama 【52】 principles entirely his own. In the strictest 【53】 , this belief is not justified, for Wagner simply returned to the oldest version of the music drama. He found that the ideal construction of the opera in Florence had been to produce work in which the music, drama and interpretation should be 【54】 equal importance. Wagner studied the changes and abuses which Gluck had 【55】 correct, and found that the opera 【56】 of the nineteenth century had 【57】 back into many of the old customs, with the result, that there was no longer a complete 【58】 of the three fundamentals of opera. Wagner tells us in his autobiography that his early life was influenced by the dramas of Shakespear, the symphonies of Beethoven, and the operas of Von Weber. His first operas were constructed on the lines of the French grand opera. The first two were absolute failures, but with the 【59】 of "Rienzi" in 1842, Wagner was proclaimed the equal, if not the superior, 【60】 Bellini, Donizetti and Meyerbeer. In the writing of this work he had discovered the dramatic absurdities of the form, 【61】 in his next work, "The Flying Dutchman," he attempted his first important use of the "leit motif," or characteristic 【62】 , for his different personages , and also used these themes, in anticipation of the advent of his characters, in a manner he later described as" making the audience a part of the being. 【63】 his way to Dresden to conduct" Rienzi," Wagner visited the Wartburg Castle, and there he became familiar 【64】 the legendary stories which he used in all his later works. "Tannhauser" gives an actual description of the Minnesinger Knights, who inspired Wagner 【65】 Teutonic versions of "The Ring of the Nibelungs", "Lohengrin" ,"Tristan and Isolde" and "Parsifal".

单选题They gave {{U}}on-the-spot{{/U}} broadcast while the performance was in process on the stage. A. live B. living C. lively D. alive

单选题The desk was a chaos of papers and unopened letters.

单选题We are wasting precious time sitting around here.A. valuableB. leisureC. spareD. previous

单选题"Salty" Rice Plant Boosts Harvests British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more. Tim Flowers and Tony Yeo, from Sussex University's School of Biological Sciences, have spent several years researching how crops, such as rice, could be made to grow in water that has become salty. The pair have recently begun a three-year programme, funded by the Biotechnology and Biological Sciences Research Council, to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops, starting with rice. It is estimated that each year more than 10m hectares (公顷) of agricultural land are lost because salt gets into the soil and stunts (妨碍生长) plants. The problem is caused by several factors. In the tropics, mangroves (红树林) that create swamps (沼泽) and traditionally formed barriers to sea water have been cut down. In the Mediterranean, a series of droughts have caused the water table to drop, allowing sea water to seep (浸透) in. In Latin America, irrigation often causes problems when water is evaporated (蒸发) by the heat, leaving salt deposits behind. Excess salt then enters the plants and prevents them functioning normally. Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive. To overcome these problems, Flowers and Yeo decided to breed rice plants that take in very little salt and store what they do absorb in cells that do not affect the plants' growth. They have started to breed these characteristics into a new rice crop, but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use. Once the characteristics for surviving salty soil are known, Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants. Land that has been abandoned to nature will then be able to bloom again, providing much needed food in the poorer countries of the world.

单选题下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。 How a Terrible Battle Helped to Change Europe Ninety years ago on a sunny morning in Northern France，something happened that changed Britain and Europe for ever．At half past seven on the morning of July 1，1916，whistles blew and thousands of British soldiers{{U}} (51) {{/U}}their positions to attack their German enemies．{{U}} (52) {{/U}}the end of the day，20，000 of them were dead，and another 30，000 wounded or missing．The Battle of the Somme，{{U}} (53) {{/U}}it is called，lasted for six months．When it ended，125，000British soldiers were dead．They had gained five kilometers of ground． This was one of a series of great battles during the WWI. The{{U}} (54) {{/U}}on the Somme was staged to relieve pressure on the French，who were{{U}} (55) {{/U}}in a great battle of their own at a place called Verdun．By the time the battle ended，over a million French and German troops had been killed． About 17 million people were killed in WWI．There have been wars with greater numbers of dead．But there has never been one{{U}} (56) {{/U}}most of the dead were concentrated in such a small area．On the Somme battlefield，two men died for every metre of space． Local farmers working in the land still{{U}} (57) {{/U}}the bodies of those who died in that battle．The dead of all nations were buried in a series of giant graveyards{{U}} (58) {{/U}}the line of the border between France and Belgium．Relatives and descendants(后代) of those who died still{{U}} (59) {{/U}}these graveyards today． It took a second great conflict before Europe was to{{U}} (60) {{/U}}against war itself．Twenty-eight years after the Somme battle，a liberating army of British，American and Canadian troops took{{U}} (61) {{/U}}France from another German invasion．More than 500，000 people were killed．New graveyards were built． Two great conflicts across two generations helped to change the European{{U}} (62) {{/U}}about war．Germany，once the most warlike country in Europe，is now probably more in favor of peace than any other．One major{{U}} (63) {{/U}}of war in Europe was rivalry(竞争) between France and Germany．The European Union was specifically formed to{{U}} (64) {{/U}}that rivalry． The last British veteran(老兵) of the Somme battle died in 2005，aged 108．And the WWI is passing out of{{U}} (65) {{/U}}and into history．But for anyone who wants to understand how Europeans think，it is still important to know a little about the terrible events of July 1,1916．