精英家教網 > 高中英語 > 題目詳情

—Are we about to have dinner?

—Yes, it ________ in the dinning room.

A. is being served B. is served C. is serving D. serves

解析:

因serve與it(dinner)是動賓關系，要用被動語態；由問句中的are about to(即將)和答語Yes可知，已“在”供應dinner了，故用現在進行時的被動語態。

練習冊系列答案

年級	高中課程	年級	初中課程
高一	高一免費課程推薦！	初一	初一免費課程推薦！
高二	高二免費課程推薦！	初二	初二免費課程推薦！
高三	高三免費課程推薦！	初三	初三免費課程推薦！
更多初中、高中輔導課程推薦,點擊進入>>

相關習題

科目：高中英語 來源：2011-2012學年上海市理工大學附屬中學高二下學期期末考試英語試卷（帶解析） 題型：填空題

ABCD請按實際情況填寫。其他請參照下表填寫。
A, B, C, D, E(AB), F(AC)

A. Control of Respiration
B. Basic tips for preserving cut flowers
C. Role of Respiration
D. Most Important Aspect of Flower Care
E. Need for Clean Water
F. Ways of Stopping Respiration

【小題1】
While everybody enjoys fresh cut flowers around his house, few people know how to keep them for as long as possible. This may be done by keeping in mind a few simple facts. The key to keeping fresh cut flowers for a week or more without floral preservatives(which contain biocides that kill bacteria and fungus) is to keep the water fresh and the stems free of air pockets so they can continue to draw up water.
【小題2】
An important thing to remember about cut flowers is that they are sensitive to temperature. For example, studies have shown that cut carnations(康乃馨) retain their freshness eight times longer when kept at 12℃ than when kept at 26℃. Keeping freshly harvested flowers at the right temperatures is probably the most important aspect of flower care.
【小題3】
Flowers are not intended by nature to live very long. Their biological purpose is simply to attract birds or insects, such as bees, for pollination (授粉). After that, they quickly dry up and die. The process by which flowers consume oxygen and produce carbon dioxide, called respiration (呼吸), generates the energy the flower needs to give the flower its shape and colour. The making of seeds also depends on this energy. While all living things respire, flowers have a high level of respiration. A result of all this respiration is heat, and for flowers the level of heat relative to the mass of the flower is very high. Respiration also brings about the eventual death of the flower. Thus the greater the level of respiration, the sooner the flower dies.
【小題4】
How, then, to control the rate at which flowers die? By controlling respiration. How is respiration controlled? By controlling temperature. We know that respiration produces heat, but the reverse is also true. Thus by maintaining low temperatures, respiration is reduced and the cut flower will age more slowly.
【小題5】
Another vital factor in keeping cut flowers is the quality of the water in which they are placed. Flowers find it difficult to “drink” water that is dirty or otherwise polluted. Even when water looks and smells clean, it almost certainly contains harmful substances that can endanger the flowers. To rid the water of these unwanted substances, household chlorine bleach (含氯漂白劑) can be used in small quantities. It is recommended that 15 drops of chlorine bleach(at 4% solution) be added to each litre of water. The water and solution should also be replaced each day.

查看答案和解析>>

科目：高中英語 來源：2013屆河北省五校聯盟高三上學期調研考試英語試卷（帶解析） 題型：填空題

根據短文內容，從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。注意：涂卡時，如答題卡上沒有E、F、G選項，請按如下方式填涂：選E涂AB；選F涂BC；選G涂CD。
Before going outside in the morning, many of us check a window thermometer (溫度計) for the temperature. This helps us decide what to wear.    1    We want our food to be a certain coldness in the refrigerator. We want it a certain hotness in the oven. If we don’t feel well, we use a thermometer to see if we have a fever. We keep our rooms a certain warmth in the winter and a certain coolness in the summer.
Not all the thermometers use the same system to measure temperature. We use a system called the Fahrenheit scale. But most other countries use the Centigrade scale.
Both systems use the freezing and boiling points of water as their guide.     2
The most common kind of thermometer is made with mercury (水銀) inside a clear glass tube. As mercury ( or any other liquid ) becomes hot, it expands. As it gets colder, it contracts (收縮) . That is why on hot days the mercury line is high in the glass tube.     3
First, take a clear glass juice bottle that has a cap; fill the bottle with colored water. Tap a hole in the center of the cap using a hammer and thick nail. Put the cap on the jar. Then stick a plastic straw (吸管) through the nail hole.
     4
Finally, place a white card on the outside of the bottle and behind the straw. Now you can see the water level easily.
     5
As the temperature goes down, the water will contract, and the level in the straw will come down. Perhaps you will want to keep a record of the water level in the straw each morning for a week.
A.      We use and depend on thermometers to measure the temperature of many other things in our daily lives.
B.      Thermometers measure temperature, by using materials that change in the same way when they are heated or cooled.
C.      Now that you know this rule you can make a thermometer of your own that will work.
D.      The water will rise in the straw. As the temperature of the air goes up, the water will expand and rise even higher.
E.      They label these in different ways. On the Fahrenheit scale water freezes at 32 degrees and boils at 212 degrees. On the Celsius scale water freezes at 0 degrees and boils at 100 degrees.
F.      Take wax ( you may use an old candle if you have one ) and melt some of it right where the straw is stuck into the cap to seal them together.
G.      People use thermometers which are made by themselves when travelling around the world.

查看答案和解析>>

科目：高中英語 來源：2011-2012學年廣東佛山市高明區紀念中學高二第一學段考試英語試卷（帶解析） 題型：填空題

閱讀下列應用文及相關信息，并按照要求匹配信息。請在答題卡上將對應題號的相應選項字母涂黑。（如果【【答案】】是E請同時涂黑AB, 如果【【答案】】是F請同時涂黑CD）,
首先，請閱讀下列調查問卷：
A
Dear Sir/Madame
I think robots can do such dangerous jobs as skyscraper builders, bridge builders and so on .If injured or broken, they can be fixed easily. They can also work in unfavorable conditions such as in the dark, extreme heat, extreme cold, etc.
B
Dear Sir/Madame
I suppose small man—controlled robots could be used as sea rescuing workers to look for people in the sea. When defusing (拆除引信) bombs, robots could also be used to reduce the risk of losing a human life.
C
Dear Sir/Madame
I suppose robots could be used as dustmen during night time, as they don’t need to sleep and they are safe in polluted environment.
D
Dear Sir/Madame
I suppose robots could be used as chemical researchers. At least they can help us keep away from harmful materials or help to go into small areas which are hard to reach for us. It can be used to examine the inside of a nuclear reactor (核反應堆).
E
Dear Sir/Madame
I suppose robots could be astronauts and they could travel very far away,like Pluto.If so,we don’t need to train human beings to be astronauts as it costs quite a lot and it also takes many years to make a professional astronaut.
F
Dear Sir/Madame
I suppose robots could be used as car assembly (裝配) workers ,in parts of the production line. Robots can make the process move faster, get more work done and cost less.
請閱讀下列答卷人的信息，然后匹配答卷人和他們所提供的調查問卷。
46.Jaime is a professor in the field of biochemistry (生物化學).He is worried about his health situation as he keeps so close to harmful elements year in and year out.
47.Bradley works in the International Security Association.He is sad to think of the fact that there were so many people who couldn’t be saved or found at last in disasters such as in lakes,rivers,seas and so on.
48.Carrie is a young man who has a job in construction company in the city.He is afraid of climbing up laders and carrying the iron bars and other things onto higher places.So he wants to give up the job and find a better one.
49.Josh is a general manager of the National Bluebird Bureau,which is short of excellent astronauts.He has spent lots of his time and money on training them.
50.Alan,who is in his thirties,is a worker in an auto factory.He is thinking of changing his job for shooter which is more interesting and creative.
答卷人在調查問卷中的問答：
46.Jaime

A．Skyscraper builders
47.Bradley

B．Sea rescuing workers
48.Carrie

C．Dustmen
49.Josh

D．Chemical researchers

50.Alan E.Astronauts
F.Car assembly workers

查看答案和解析>>

科目：高中英語 來源： 題型：單選題

“Where are we now?”_____ few minutes one of the students asked me the same question.

A.
A
B.
Each
C.
Another
D.
Every

查看答案和解析>>

科目：高中英語 來源： 題型：

第二節根據對話內容，從對話后的選項中選出能填入空白處的最佳選項。并在答題卡上將該項涂黑。選項中有兩項為多余選項。（涂卡時注意：E=AB，F=AC，G=AD）

－ What do you think I ought to see first in London? I’m told one ought to see the British Museum.

Do you think I shall have time for that?

－61 But if I were you, I should leave that for some other day. You could spend a whole day there. It’s much too big to be seen in an hour or so.

－I suppose it is. 62

－That’s not a bad idea. You could spend a couple of hours there comfortably, or even a whole afternoon, watching the wild animals and all those birds. You could have tea there too.

－I’ll do that, then. How do I get there?

－ 63 Where are we now? Oh, there’s that big building. I think your best way from here is to take Baker Street.

－ 64

－Oh, no , a quarter of an hour or so , but, if you’re in a hurry, why not take a taxi?

－I think I will. 65

A. Let me see.

B. Well, you might.

C. What time is it now?

D. Is it much of a walk?

E. Ah, here’s one coming.

F. What about going to the Zoo?

G. Must I stay in London for long?

查看答案和解析>>

同步練習冊答案

日日人人_亚洲美女在线视频_av手机在线播放_国产大片aaa_欧美中文日韩_午夜理伦三级

練習冊

高中

初中

小學

“Where are we now?”_____ few minutes one of the students asked me the same question.