单选题Which of the following is TRUE according to this passage?A It won’t be dangerous if there are seat belts or air bags in a car.B Now most of new cars still have only one air bag.C When a car hits something, its air bags will come out a few minutes later.D Volvo was the first to use seat belts.

考题 E）任务型阅读（共5小题，计10分）阅读下面的短文，根据短文内容，完成表格。（每空填1至3个词）China has decided to stop the use of free plastic bags. Supermarkets， shops and outlets(经销店) in China can’t offer plastic bags any more.Every year， people use too many plastic bags. They throw them here and there after they have used them. The government has done its best to deal with them but failed. While we offer quick service（服务） to customers， the plastic bags pollute water，earth and air， and they waste the oil. The government asks people to go back to carry cloth bags and use baskets when they go to buy something. The cloth bags and the baskets can be used again and again.Many months have passed. The environment has been improved a lot.ActionMake a decision to stop the use of 41.42.Supermarkets， shops and outletsAdvantageOffer43. service to customersDisadvantagePollute water， earth and air and waste44.What should we doGo back to carry cloth bags and use 45.41.__________

查看答案

考题 According to the passage，what is one disadvantage of skyscrapers that have mirrored walls?A. The exterior surrounding air is heated。B. The windows must be cleaned daily.C. Construction time is increased.D. Extra air-conditioning equipment is needed.

查看答案

考题 In Leon Nacson’s view, air and water are our Number One priorities for the following reasons except ().A、he cannot understand why people are polluting air and waterB、there will definitely be no fresh air and clean water for future generationsC、we would run out of air and water if we didn’t stop polluting themD、air and water polluting are the current and futu

查看答案

考题 Motor vehicles powered by the internal combustion engines are responsible for over 80 percent of the deadly carbon monoxide as well as the cancer-causing substances in the air. Eighty-nine percent of the vehicles on the road in Massachusetts are privately owned and are often operated with only one person in the car. If people would use public transportation instead of their cars, air pollution levels could be significantly lowered. Thirty percent of the land in downtown Boston is devoted to cars. Where there are garages, there could be gardens. Where there are highways, there should be homes and places to work and play. Studies show that people today show a greater hearing loss with age than ever before. Much of this is due to car-horns, loud engines and general traffic noise.The cost of a personal car is high to the individual. The average person pays about $2,000 per car per year in gasoline, insurance, taxes, and maintenance. But for society as a whole, personal cars are a luxury we cannot afford. We pay in death from auto accidents, in poor health from air pollution, in loss of hearing from noise pollution, and in the destruction of our cities by the ever-increasing number of highways.1、It is ____ that are the main cause of the air pollution in Boston.A、vehicles in generalB、the public transportation systemsC、carbon monoxidesD、personal motor vehicles2、The writer’s purpose in writing this article is to _____.A、remind people of the danger of air pollutionB、warn people of the danger of accidentsC、urge people to use private cars as less as possibleD、ask the Boston government to build more homes and gardens3、According to the last paragraph, ______.A、the cost of personal cars is high to the individuals but not to the societyB、an average car costs about $2,000 inBostonC、personal cars are so expensive that most people cannot affordD、society as a whole suffers much from the ever-increasing number of cars4、It is implied but not stated that ______.A、garages, highways and parking areas occupy nearly one third of the total Boston downtown area.B、because of highways, people in Boston have no more homes and places to live, work and play.C、C garages have replaced most of the gardens in BostonD、Boston is the most seriously polluted city in the U.S.5、The best title for this passage is “ ______.”A、Air Pollution in BostonB、More Homes, More Plays for PeopleC、Cars Are Too ExpensiveD、Public Transportation, A Solution to Air Pollution

查看答案

考题 According to the article, which of the following statements is not true?A．Tightly sealed house may be harmful in another aspect.B．The house is unsealed to prevent the air from leaking.C．The air always leaks from cracks.D．New house is worse than old one in the aspect of indoor pollution.

查看答案

考题 Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger? .A.Reduce engine speed to idle before removing the filterB.Soak the dirty filter in kerosene onlyC.Blow out the air inlet with compressed airD.Cover the air inlet after removing the filter

查看答案

考题 Which of the following statements can best be inferred from the passage?A. Fishes only "speak" to communicate with each other.B. Researches are now being made to study the significance of fish sounds.C. Sea animals have a sharper hearing ability than men.D. Sounds made by fish cannot be transmitted through the air.

查看答案

考题 Which of the following statements is TRUE according to the passage?A. Some companies in the United States moved to Sweden, Germany and Belgium.B. Fresh air, spacious room and being away from others attract people to move to the suburbs.C. People wouldn't pay tax when they moved out of cities.D. The neighborhood should be maintained by old and poor people.

查看答案

考题 According to this passage, which of the following statements is true?A.In boiler and machinery spaces, there is the air conditioning.B.In the boiler rooms the requirement of air volume should meet 25-50% of combustion requirement.C.To maintain the comfort zone in the separate control room the air conditioning plant should be fitted.D.The comfort conditions can be maintained in the engine room all the time.

查看答案

考题 According to the passage, what is one disadvantage of skyscrapers that have mirroredwalls?__________A.The exterior surrounding air is heated B.The building materials are very expensive C.Construction time is increased D.Extra air-conditioning equipment is needed

查看答案

考题共用题干 A Ride in a Cable-carA ride in a cable-car is one of the exciting and enjoyable experiences a child can have.InSwitzerland,which is the home of the cable-car,it is used mostly to take tourists up the slope of a mountain,to a restaurant from which one can have a bird-eye view of the surrounding country, or to a top of a ski-run,from which,in winter,skiers glide down the snow covered the slope on skis .In Singapore,however,the cable-car takes one from the summit of a hill on the main island to a low hill on Sentosa,a resort island just off the southern coast.The cable-car is really a carriage which hangs from a strong steel cable suspended in the air.It moves along the cable with other cars on pulleys,the wheels of which are turned by electric motors. The cars are painted in eye-catching colours and spaced at regular intervals.Each car can seat up six persons.After the passengers have entered a car,they are locked in from outside by an attendant,they have no control over the movement of the car.Before long,the passengers get a breath-taking view through the glass windows of the modern city,the bustling harbour,and the several islands off the coast. The car is suspended so high in the air that slips on the sea look like small boats,and boats like toys.On a clear day,both the sky above and the sea below look beautifully blue.In contrast to the fast-moving traffic on the ground,the cars in the air move in a leisurely manner,allowing passengers more than enough time to take in the scenery during the brief trip to the island of Sentosa.After a few hours on Sentosa,it will be time again to take a cable-car back to Mount Faber. The return journey is no less exciting than the outward trip. Which of the following about the cable-cars is true?A: The cars move along the steel cable.B: The cars are operated by a driver.C: The cars are controlled by the passengers.D: The cars move on wheels.

查看答案

考题共用题干 A Ride in a Cable-carA ride in a cable-car is one of the exciting and enjoyable experiences a child can have.InSwitzerland,which is the home of the cable-car,it is used mostly to take tourists up the slope of a mountain,to a restaurant from which one can have a bird-eye view of the surrounding country, or to a top of a ski-run,from which,in winter,skiers glide down the snow covered the slope on skis .In Singapore,however,the cable-car takes one from the summit of a hill on the main island to a low hill on Sentosa,a resort island just off the southern coast.The cable-car is really a carriage which hangs from a strong steel cable suspended in the air.It moves along the cable with other cars on pulleys,the wheels of which are turned by electric motors. The cars are painted in eye-catching colours and spaced at regular intervals.Each car can seat up six persons.After the passengers have entered a car,they are locked in from outside by an attendant,they have no control over the movement of the car.Before long,the passengers get a breath-taking view through the glass windows of the modern city,the bustling harbour,and the several islands off the coast. The car is suspended so high in the air that slips on the sea look like small boats,and boats like toys.On a clear day,both the sky above and the sea below look beautifully blue.In contrast to the fast-moving traffic on the ground,the cars in the air move in a leisurely manner,allowing passengers more than enough time to take in the scenery during the brief trip to the island of Sentosa.After a few hours on Sentosa,it will be time again to take a cable-car back to Mount Faber. The return journey is no less exciting than the outward trip. The short trip does not bother passengers who want a good view because______.A: the cars move slowlyB: the cars move quicklyC: the cars are suspended very highD: the cars have glass windows

查看答案

考题共用题干 Rockets in the SkyIf someone asked you,"What color is the sky?"I expect that you would answer,"Blue."I am afraid that you would be wrong.The sky has no color.When we see blue,we are looking at blue sunlight.The sunlight is shining on little bits of dust in the air.We know that there is air all around the world.We could not breathe without air.Airplanes could not fly without air.They need air to lift their wings.Airplanes cannot fly very high because as they go higher the air gets thinner.If we go far enough away from the earth,we find there is no air.What is the sky?The sky is space.In this space there is nothing except the sun,the moon and all the stars. Scientists have always wanted to know more about the other worlds in the space.They have looked at them through telescopes and in this way they have found out a great deal.The moon is about 384 ,000 kilometers away from the earth.An airplane cann't fly to the moon but there is a thing that can fly even when there is no air. This is rocket.I am sure that you are asking,"How does a rocket fly?"If you want to know,get a balloon and then blow it up until it is quite big.Do not tie up the neck of the balloon.Let go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out.It rushes out through the neck of the balloon and this pushes the balloon through the air.It does not need wings like an airplane.This is how a rocket works.It is not made of rubber（橡胶）like a balloon,of course.It is made of metal. The metal must not be heavy but it must be very strong.There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket,the rocket is pushed up into the air.Rockets can fly far out into space.Rockets with men inside them have already reached the moon.Several rockets,without men inside them,have been sent to other worlds much farther away.One day rockets may be able to go anywhere in the space.When an airplane flies too high,______.A:the air will be too thin to support its wingsB:the air will become thickerC:the air will exert pressure on itD:the air will disappear in no time

查看答案

考题共用题干 A Ride in a Cable-carA ride in a cable-car is one of the exciting and enjoyable experiences a child can have.InSwitzerland,which is the home of the cable-car,it is used mostly to take tourists up the slope of a mountain,to a restaurant from which one can have a bird-eye view of the surrounding country, or to a top of a ski-run,from which,in winter,skiers glide down the snow covered the slope on skis .In Singapore,however,the cable-car takes one from the summit of a hill on the main island to a low hill on Sentosa,a resort island just off the southern coast.The cable-car is really a carriage which hangs from a strong steel cable suspended in the air.It moves along the cable with other cars on pulleys,the wheels of which are turned by electric motors. The cars are painted in eye-catching colours and spaced at regular intervals.Each car can seat up six persons.After the passengers have entered a car,they are locked in from outside by an attendant,they have no control over the movement of the car.Before long,the passengers get a breath-taking view through the glass windows of the modern city,the bustling harbour,and the several islands off the coast. The car is suspended so high in the air that slips on the sea look like small boats,and boats like toys.On a clear day,both the sky above and the sea below look beautifully blue.In contrast to the fast-moving traffic on the ground,the cars in the air move in a leisurely manner,allowing passengers more than enough time to take in the scenery during the brief trip to the island of Sentosa.After a few hours on Sentosa,it will be time again to take a cable-car back to Mount Faber. The return journey is no less exciting than the outward trip. Passengers can get a breath-taking view when riding in a cable-car because______.A: the car is painted in eye-catching coloursB: the car is suspended so high in the skyC:.each car can seat up to six personsD: both the sky and the sea look beautifully blue

查看答案

考题 Californian Michael Schwabe said goodbye to the gas pump two years ago．He leased an electric car．Schwabe says he gets more out of driving an electric car than just a charge. "With the price of gasoline and with the problems with clean air,it's important we get electric vehicles out on the road." On California roads there are about two thousand electric cars．By 2003,ten percent of all new cars may be required to have zero emissions．This is a mandate automakers say it is way ahead of its time. Gloria Bergquist of the Alliance of Auto Manufacturers says,"The technology(for zero emissions)isn't here yet;it still needs advancement in driving range to make it more appealing to a wider consumer audience." Auto makers blame it on the batteries．Power runs out on most cars after about 70 miles．However,some cars can now go more than 100 miles on a charge．Batteries are expensive．Carmakers say there is nothing they can do about it. Tim Carmichael of the Clean Air Coalition says,"The automakers have not built a vehicle unless required to do so,so it's very important for the state to stay committed to this program requiting automakers to build small amounts in beginning years and then the market will take off." Right now the California Air Resources Board requires that a percentage of new cars sold should be free of emissions．What is that percentage?A.1%． B.5%． C.10%． D.100%.

查看答案

考题 Californian Michael Schwabe said goodbye to the gas pump two years ago．He leased an electric car．Schwabe says he gets more out of driving an electric car than just a charge. "With the price of gasoline and with the problems with clean air,it's important we get electric vehicles out on the road." On California roads there are about two thousand electric cars．By 2003,ten percent of all new cars may be required to have zero emissions．This is a mandate automakers say it is way ahead of its time. Gloria Bergquist of the Alliance of Auto Manufacturers says,"The technology(for zero emissions)isn't here yet;it still needs advancement in driving range to make it more appealing to a wider consumer audience." Auto makers blame it on the batteries．Power runs out on most cars after about 70 miles．However,some cars can now go more than 100 miles on a charge．Batteries are expensive．Carmakers say there is nothing they can do about it. Tim Carmichael of the Clean Air Coalition says,"The automakers have not built a vehicle unless required to do so,so it's very important for the state to stay committed to this program requiting automakers to build small amounts in beginning years and then the market will take off." What do automakers blame for there being few electric cars now on the road?A.The price of ga B.The mandat C.The conditions of the road D.The batterie

查看答案

考题 Californian Michael Schwabe said goodbye to the gas pump two years ago．He leased an electric car．Schwabe says he gets more out of driving an electric car than just a charge. "With the price of gasoline and with the problems with clean air,it's important we get electric vehicles out on the road." On California roads there are about two thousand electric cars．By 2003,ten percent of all new cars may be required to have zero emissions．This is a mandate automakers say it is way ahead of its time. Gloria Bergquist of the Alliance of Auto Manufacturers says,"The technology(for zero emissions)isn't here yet;it still needs advancement in driving range to make it more appealing to a wider consumer audience." Auto makers blame it on the batteries．Power runs out on most cars after about 70 miles．However,some cars can now go more than 100 miles on a charge．Batteries are expensive．Carmakers say there is nothing they can do about it. Tim Carmichael of the Clean Air Coalition says,"The automakers have not built a vehicle unless required to do so,so it's very important for the state to stay committed to this program requiting automakers to build small amounts in beginning years and then the market will take off." When did Michael Schwabe say goodbye to the gas pump?A.Two days ag B.Two months ag C.Two years ag D.Ten years ag

查看答案

考题 Madrid was hailed as a public health beacon last November when it rolled out ambitious restrictions on the most polluting cars.Seven months and one election day later,a new conservative city council suspended enforcement of the clean air zone,a first step toward its possible demise.Mayor Jose Luis Martinez-Almeida made opposition to the zone a centrepiece of his election campaign,despite its success in improving air quality.A judge has now overruled the city's decision to stop levying fines,ordering them reinstated.But with legal battles ahead,the zone's future looks uncertain at best.Among other weaknesses,the measures cities must employ when left to tackle dirty air on their own are politically contentious,and therefore vulnerable.That s because they inevitably put the costs of cleaning the air on to individual drivers一who must pay fees or buy better vehicles一rather than on to the car manufacturers whose cheating is the real cause of our toxic pollution.It's not hard to imagine a similar reversal happening in London.The new ultra-low emission zone（Ulez）is likely to be a big issue in next year's mayoral election.And if Sadiq Khan wins and extends it to the North and South Circular roads in 2021 as he intends,it is sure to spark intense opposition from the far larger number of motorists who will then be affected.It's not that measures such as London's Ulez are useless.Far from it.Local officials are using the levers that are available to them to safeguard residents'health in the face of a serious threat.The zones do deliver some improvements to air quality,and the science tells us that means real health benefits-fewer heart attacks,strokes and premature births,less cancer,dementia and asthma.Fewer untimely deaths.But mayors and councillors can only do so much about a problem that is far bigger than any one city or town.They are acting because national governments一Britain s and others across Europe-have failed to do so.Restrictions that keep highly polluting cars out of certain areas-city centres,。school streets",even individual roads-are a response to the absence of a larger effort to properly enforce existing regulations and require auto companies to bring their vehicles into compliance.Wales has introduced special low speed limits to minimise pollution.We re doing everything but insist that manufacturers clean up their cars. Which of the following is true about Madrid's clean air zone?A.Its effects are questionable B.It has been opposed by a judge C.It needs tougher enforcement D.Its fate is yet to be decided

查看答案

考题单选题According to the passage, air bags are another device that _____.A adds safety to car drivingB is going to replace seat beltsC comes out slowly to functionD prevents cars from running too fast

查看答案

考题单选题The passage mainly tells us _____.A two important ways to keep safe in carsB how air bags work to make cars safeC how seat belts work to make cars safeD why we must tie the egg to the skateboard

查看答案

考题单选题Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger?（）A Reduce engine speed to idle before removing the filterB Soak the dirty filter in kerosene onlyC Blow out the air inlet with compressed airD Cover the air inlet after removing the filter

查看答案

考题单选题Which of the following statements is TRUE?A People with seat belts tied will always be safe in cars.B Volvo was the first carmaker to use seat belts in cars.C Air bags will come out before the cars hit something.D All cars have air bags in front of the seats.

查看答案

考题单选题Disastrous explosions have been caused by accumulations of oil or oil vapour in air lines not drainedAccording to the above sentence, which of the following statements is true?（）A Oil vapour in air piping are dangerousB Explosion will cause oil vapouring in air linesC Oil vapour in air piping should be drainedD Oil in air piping should not be drained

查看答案

考题单选题The best title for this passage is _____.A Buy a Volvo with AirbagsB Make a Car Safe InsideC Fasten Your Seat BeltsD Add Air Bags to Cars

查看答案

考题单选题Your vessel is equipped with totally enclosed lifeboats. Which statement is TRUE when the boat is enveloped in flames?（）.A The ventilators will automatically close by the action of fusible linksB The motor takes its air supply from outside the lifeboat to prevent asphyxiation of the crewC A water spray system to cool the outside of the boat is operated by a high-volume manual pumpD An air tank will provide about ten minutes of air for the survivors and the engine

查看答案

考题单选题Which of following functions is not one of the functions of air conditioner?（）A refreshing the airB making person upsetC adjusting the air humidityD adjusting the air temperature

查看答案

考题单选题Air bags are important for cars because _____.A they are made of plasticB they can also help us to keep safe in a carC they can keep cars running slowlyD they are put in front of and next to the seats

查看答案

网友您好， 请在下方输入框内输入要搜索的题目：

网友您好，请在下方输入框内输入要搜索的题目：