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[单选题]

How much is the air ticket？（)

A.It's 150 dollars.

B.Which flight do you like？

C.Nice talking with you.

D.See you.

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更多“How much is the air ticket？（)”相关的问题

第1题

The word horsepower(马力) was first used two hundred years ago. (200年前“马力”这个词首The word horsepower(马力) was first used two hundred years ago. (200年前“马力”这个词首次使用。) James Watthad made the first widely used steam(蒸气)engine. He had no way of tllingpeople exactly how powerful it was, for at that time there were no units for measuring (测量)power.Watt decided to find out how much work one strong horse could do in one minute. He called thatunit one horsepower. With this unit he could measure the work his steam engine could do.He discovered that a horse could lift a 3,300-pound weight 10 feet into the air in one minute.Hisengine could lift a 3,300-pound weight 100 feet in one minute. Because his engine did ten times as much work as the horse, Watt called it a ten horsepowerengine.

1.The passagesays that Watt made the first widely used steam engine.

A.T

B.F

2.Watt made up a unit of measurement based on the strength of a horse.

A.T

B.F

3.Watt wanted to find a way to lift a 3300-pound weight.

A.T

B.F

4.One horsepower would equal the weight a horse could lift.

A.T

B.F

5.The title of the passageis "How the Term Horsepower Came into Being".

A.T

B.F

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第2题

Scientists have always wanted to know more about the other worlds in space. Years ago they

knew a lot about the moon. They knew how big it is and how far away it is from the earth. But they wanted to know more about it. They thought and thought. At last they found the only way to know more was to send men to the moon.

The moon is about 384 000 kilometers away from the earth. A plane can not fly to the moon because the air reaches only 240 kilometers high above the earth. Then there is no air. But something can fly even when there is no air. That is' a rocket (火箭).

Rockets can fly out into space. Rockets with men in them have already reached the moon. Some rockets without men in them have flown to other parts, much farther away from the earth than the moon in the universe. One day, rockets may be able to go to any place.

Scientists knew ______ about the moon a long time ago.

A．nothing

B．many things

C．everything

D．little

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第3题

Without proper planning, tourism can cause problems. For example, too many tourists can cr

owd public places' that are also enjoyed by the inhabitants of a country. If tourists create too much traffic, the inhabitants become annoyed and unhappy. They begin to dislike tourists and to treat them impolitely. They forget how much tourism can help the country's economy. It is important to think about the people of a destination and how tourism affects them. Tourism should help a country to keep the customs and beauty that attract tourists. Tourism should also advance the well-being of local inhabitants.

Too much tourism can be a problem. If tourism grows too quickly, people must leave other jobs to work in the tourism industry. This means that other parts of the country's economy can suffer.

On the other hand, if there is not enough tourism, people can lose jobs. Businesses can also lose money. It costs a great deal of money to build large hotels, airports, air terminals, first-class roads, and other support facilities needed by tourist attractions. For example, a major international-class tourism hotel can cost as much as 50000 dollars per room to build. If this room is not used most of the time, the owners of the hotel lose money.

Building a hotel is just a beginning. There must be many support facilities as well, including roads to get to the hotel, electricity, sewers to handle waste and water. All of these support facilities cost money. If they are not used because there are not enough tourists, jobs and money are lost.

Which of the following has most probably been discussed in the para. that goes before the para. ？ ______.

A．It is extremely important to develop tourism

B．Building roads and hotels are essential

C．Support facilities are highly necessary

D．Planning is of great importance to tourism

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第4题

The energy which the sun radiates goes in every direction, and only a minute part of it fa

lls on the earth. Even so, it represents power of about 5,000,000 horsepower (马力)per square mile per day; the sun gives us as much energy every minute as mankind utilizes in a year. At present, we use this energy in directly, and it is our final source of power. Coal represents the chemical action of the sun on green plants thousands of years ago. Water power results from the rain formed by vapor which comes from the evaporation of power. Coal represents the rain formed by vapor which comes from the evaporation of water under the sunshine. Even windmills operate because of air currents set in motion by the different heating affects of the sun in different places. Some day, through chemistry or some type of solar engine, we shall harness this great source of energy more directly. Already a scientist has worked out an engine, surprisingly efficient, in with the sun' s rays are concentrated through mirrors on a tube of water to create steam.

How much energy given off by the sun reaches the earth？

A．100 % but indirectly

B．5 %

C．0.5

D．only a very tiny amount

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第5题

In the month of September, in Britain, you may see large numbers of birds （1)_____ on roof

In the month of September, in Britain, you may see large numbers of birds (1)_____ on roofs and telegraph wires. These birds are swallows. They are (2)_____ together because, very soon, they will be flying. (3)_____ to much warmer lands, where they will find (4)_____ the small flying insects on which they (5)_____. There are no such insects (6)_____ in Britain during the winter; it is (7)_____ cold for them.

The swallows settle, fly off, swoop, and (8)_____ again. This they do many times, for they are making short (9)_____ flights in order to be fit for the long journey (10)_____ them.

(11)_____ of these migrating birds leave Britain in the autumn. They fly (12)_____ for hundreds of miles (13)_____ they reach the warm lands of Africa. But not all the birds get there, for many of them perish in the stormy weather they meet with (14)_____.

In the spring of the following year they" (15)_____ the long and tiring journey back to Britain.

They return to the identical barn or tree in the (16)_____ district which they had left the (17)_____ autumn. How do these birds find their (18)_____ there and back over such vast distances？ Nobody knows exactly (19)_____, but it has something to do (20)_____ winds and air currents.

A．being perched

B．perched

C．being perching

D．be perched

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第6题

What about mailing it in the fastest way？

A.By air mail

B.Post office is over there

C.Thank you very much

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第7题

根据下面内容，回答题：Earth is the only 21 we know of in the universe that can support huma

根据下面内容，回答题：

Earth is the only 21 we know of in the universe that can support human life.22 human activities are making the planet less fit to live on. As the western world 23 on consuming two-thirds of the world" s resources while half of the world" s population do so 24 to stay alive we are rapidly destroying the 25 resource we have by which all people can survive and prosper.

Everywhere fertile soil is 26 built on or washed into the sea. Renewable resources are exploited so much that they will never be able to recover 27 We discharge pollutants 28 the atmosphere without any thought of the consequences. As a 29 the planet" s ability to support people is being 30 at the very time when rising human numbers and consumption are 31 increasingly heavy demands on it. The Earth" s 32 resources are there for us to use. We need food， water， air， energy， medicines， warmth， shelter and minerals to 33 us fed， comfortable， healthy and active. If we are sensible in how we use the resources they will 34 indefinitely. But if we use them wastefully and excessively they will soon run 35 and everyone will suffer.

材料题请点击右侧查看材料问题查看材料

A.situation

B.place

C.position

D.site

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第8题

How is food for plants made？ Food for plants is made ______.A．from waterB．from the air in

How is food for plants made？ Food for plants is made ______.

A．from water

B．from the air in the sky

C．from the soil