The article is a condensed and adapted version of the preface to the book “Conflict and Consensus in Modern American History”.

A . series of baffles B . crossover pipe C . condensate separator D . drain pum

A . Text messages have allowed children to learn and feel empathy. B . Cell phones have made children‘s life at school colorful and exciting. C . Experiencing loneliness or sadness is as beneficial as enjoying happiness. D . Cell phones may offer people the quickest way to find someone to talk to.

A . remove any air that may accumulate in the system B . take out unpleasant fumes from the refrigerant C . vent off excess refrigerant in an emergency D . permit opening the refrigerating system for cleaning and inspecting

A . dew point temperature B . condensation temperature C . psychometric temperature D . absolute humidity temperature

A . to increase the system efficiency by sensible heat transfer B . to stop the liquid from flashing C . to reduce the load on the compressor D . to remove latent heat of vaporization and the suction piping transfer

A . check valve B . non-return valve C . steam trap D . quick closing tra

A . system is overcharged with refrigerant B . system is low on refrigerant C . discharge valves are leaking excessively D . discharge valves are leaking slightly

A . pallet B . barrel hook C . spreader D . snotter

A . fo'c'sle Card B . Articles Copy C . Voyage Agreement D . Shipping Article

A . Ironic B . Passionate C . Humorous D . Matter-of-fact

A . Shipping Articles B . Fo'c'sle Card C . Voyage Agreement D . Articles Copy

A . Evaporation B . Circulation C . Condensation D . Distillatio

A . dry B . wet C . super-cooled D . superheated

A . high pressure liquid B . low pressure vapor C . high pressure vapor D . low pressure liquid

A．Richard Tucker is acquainted with photography. B．Mr. Whitman is a novice photographer. C．Mr. Whitman"s job is much easier due to advanced technology. D．Mr. Whitman was an advertising agent.

A A false sense of security B Remote destinations C Too risky for some D Holidays that don't quite work E New findings F Very little real danger G Too much routine H Second-hand experiences I Available to all Activity Holidays Whether it's bungee-jumping, climbing or sky-diving, we want to test ourselves on holiday. Peter Jones tries to find out why. Risk-taking for pleasure is on the increase. Adventure activities and "extreme" sports are becoming very popular and attracting everyone from the young and fit to people who, until recently, were more likely to prefer walking round museums at weekends. Grandmothers are white-water rafting, secretaries are bungee-jumping, and accountants are climbing cliffs. 【B1】__________ Well-planned summer expeditions to tropical locations are now fashionable for European university students. As they wander over ancient rocks or canoe past tiny villages, away from it all, it ]s quite possible to feel "in tune with nature", a real explorer or adventurer. 【B2】__________ A whole blanch of the travel industry is now developing around controlled risks. Ordinary trippers, too, are met off a plane, strapped into rafts or boats and are given the sort of adventure that they will remember for years. They pay their money and they trust their guides, and the wetter' they get the better. Later, they buy the photograph of themselves "risking all in the wild". 【B3】__________ But why the fashion for taking risks, real or simulated？ The point that most people make ix that city lie is tame, with little variety, and increasingly corrtroled. Physical exercise is usually restricted to aerobics in the gym on a Thursday, and a game of football or tennis in the park or a short walk at the weekend. 【B4】__________ Says Trish Malcolm, an independent tour operator: "People want a sense of immediate achievement and the social element of shared physical experience is also important.' Other operators say that people find the usual type of breaks-such as a week on the beach-Loo slow. They say that participation in risk sports is a reflection of the restlessness in people. They are always on the go in their lives and want to keep up the momentum on holiday. 【B5】__________ But psychologists think it's even deeper than this. Culturally, we are being separated from the physical, outside world. Recent research suggests that the average person spends less and less time out of doors per day. 【B6】__________ Nature and the great outdoors are mostly encountered through wildlife films or cinema, or seen rushing past the windows of a fast car. In a society where people are continually invited to watch rather than to participate, a two-hour ride down a wild and fast- flowing river can be incredibly exciting. 【B7】__________ One psychologist believes that it is all part of our need to corrtrol nature. Because we have developed the technology to make unsinkable boats, boots that can stop us getting frostbite or rackets that allow us to survive in extreme temperatures, we are beginning to believe that nothing will harm us and that we are protected from nature. That is until nature shows us her true power in the form. of a storm, flood or avalanche. 【B1】______

A．warn us not to nap at work B．explain the danger of sleepiness C．discuss the side effects of napping D．make the reader believe the necessity of napping

A．The general knew that Mishima had longed to die a hero's death. B．The general was greatly taken aback by Mishima's suicide attempt. C．Some soldiers surrendered after Mishima's speech. D．One of Mishima's aides was killed by the soldiers. 此题为多项选择题。

A.Volcanic eruptions are not always deadly. B.Older volcanic eruptions were more destructive. C.Carbon dioxide emissions often give rise to global warming. D.It is not easy to calculate the killing power of a volcanic eruption.

A．the degree of polymerization of condensation polymers is initially high and then decreases with time B．evaporation of a volatile by-product causes shrinkage ofthe set material C．If left unpoured，condensation impression materials expand as they absorb water from air D．condensation polymers will start to react with the polymer of the impression tray and cause distortion