职称英语 - 理工类

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根据以下材料，回答题 The Magic of Sound Music is one of the most beautiful forms of artistic expressions ever invented. In movies and plays， music has an added function: it not only moves people but also can shock people. Is it true that an ordinary musical instrument can be so powerful？ Our eardrums can withstand sound within 20 to 80 decibels. Once sound exceeds this limit，even beautiful music will become ear-splitting noise and harm health. A strong blast of high sound can twist and break a solid iron sheet. （46） The noise from a plane"s engine is over 140 decibels. However， the sound of a flute is at most a few decibels. （47） It has been proven that people who have worked in an environment with a high sound intensity for a long time suffer varying degrees of heart disease or altered brain waves. In movies， sometimes the hero can produce a sound that ordinary people can"t hear and only those who have the same ability can feel. In nature， there is actually sound that is beyond our hearing. In physics， the sound that exceeds 20，000 Hz is called ultrasonic. （48） It does no harm to health. Sound less than 20 Hz is called infrasonic waves. When we move， the air will vibrate. （49） As the frequency of infrasonic waves is close to that of people"s internal organs， infrasonic wave may cause resonance in human bodies. As a result， people"s vision may weaken and internal organs may rupture. However， whether an infrasonic wave can be used as a weapon depends on its intensity. If its intensity is very low， it won"t damage internal organs or a person"s health. __ （50） When wind blows at a force of 3 or 4 over the sea， it will produce infrasonic waves of several decibels. Only typhoons can produce infrasonic waves of over 100 decibels. At present scientist can only produce infrasonic weapons in the lab with the help of advanced scientific tools and powerful electric power. 回答（46）题查看材料

A. High sound of 150 decibels can kill a healthy rat.
B. The vibration of air can produce infrasonic waves.
C. We cannot play high-pitched music with ordinary musical instruments.
D. If the intensity of infrasonic wave exceeds 160 decibels， it is extremely harmful.
E. Dolphins， whales and bats can make such high-frequency sound.
F. Therefore， the sound of ordinary musical instruments cannot harm your health.

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Geoffery Miler has done research on music and emotions.

A. Right
B. Wrong
C. Not mentioned

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Why can‘t you stop your eternal complaining .9

A. everlasting
B. long
C. temporary
D. boring

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The company has put in a lot of money to remedy the situation

A. maintain
B. improve
C. provide
D. protect

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The great changes of the city astonished every visitor to that city.

A. attacked
B. shocked
C. attracted
D. interested

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Books written by J.Verne are __________ . 查看材料

A. concerned with the problems to solve in the future
B. to keep ahead of scientific advances
C. implication （涵义）
D. a current theme
E. read worldwide
F. arecurrent （反复出现的） theme

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A slght temperature increase in a lake could be harmful for fish.

A. Right
B. Wrong
C. Not mentioned

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根据以下材料，回答题 Reduce Packaging Pressure increased recently on British supermarkets and retailers to reduce packaging as part of an anti-waste campaign. （46） Britain generates 4.6 million tons of household waste every year by packaging. Dozens of people have expressed anger at the excess of plastic wrapping.Campaigners have called on Britain to learn from other European countries. （47） When returned bottles are put in a vending machine （自动售货机）， the deposit is refunded. Environmentalists warn that Britain lags behind in this. There were reports of growing unease among consumers over the amount of packaging they have to deal with. Trade standards officers also object to excessive packaging. （48） In response to a campaign by Britain"s the Independent Newspaper， leading supermarkets have pointed to various initiatives to win the public confidence. （49） But campaigners said retailers and the government could learn much from anti-waste practices on the Continent. In Sweden， non-recyclable batteries have been taxed since 1991 to encourage a switch to alternatives. __ （50） In Germany， plastic bags are unheard of in supermarkets and deposits are paid for reusable plastic and glass beverage bottles. 回答（46）题查看材料

A. In Belgium， when you buy something in a plastic or glass container， you make a deposit.
B. This is because too much padding can give buyers a false impression of what they are buying.
C. This has resulted in a 74 percent reduction in sales.
D. Tesco said it was saving 112，000 tons of cardboard a year by switching to reusable plastic crates （装货箱） for transporting its fresh produce.
E. The campaign was initiated by the Independent newspaper.
F. If a product is over-packaged， don"t buy it.

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