There are________to show that a new, different city is coming out of its dark pa
题型：不详难度：来源：
There are________to show that a new, different city is coming out of its dark past. | A．signals | B．marks | C．signs | D．symbols |
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答案
| C |
解析
试题分析：考查名词：句意：有迹象表明一个崭新的不同的城市脱离了它黑暗的过去。A. signals信号， B. marks标记，C. signs标志，迹象，D. symbols象征，选C。 |
举一反三
--- Is this the book you are looking for?
--- Yes. It’s the ________ one I am after. |
In order to continue to learn by ourselves after leaving school, we must________learn how to study in the school now. | A．after all | B．in all | C．above all | D．first of all |
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Jess was sad and her friend helped her ________the first awful weeks after her husband Bill died. | A．break through | B．break down | C．get through | D．get rid of |
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根据短文内容, 从下框A~F选项中选出能概括每段主题的最佳选项，并在答题卡上将该选项涂黑。选项中有一项为多余项。
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
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小题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 flower for a week or more without preservatives ( which contain biocides (***虫剂) that kill bacterial and fungus) is to keep the water fresh and the stems free of air pockets so they can continue to draw up water.
小题2:_____________
An important thing to remember about cut flowers is that they are sensitive to temperature. For example, studies have shown that cut carnations retain their freshness eight times longer when kept at 12℃ than when kept at 26℃. Keeping freshly harvested flowered at the right temperatures is probably the most important aspect of flower care.
小题3:_____________
The process by which flowers consume oxygen and produce carbon dioxide, called respiration (呼吸), supplies the energy the flower needs to give the flower its shape and color. 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.
小题4:______________
How, then, to control the speed at which flowers die? By controlling respiration. How is respiration controlled? By controlling temperature, we know that respiration produces heat, but the reverse ( 反面 ) is also true. Thus by keeping low temperatures, respiration is reduced and the cut flower will age more slowly.
小题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, chlorine bleach ( 含氯漂白剂 ) can be used in small quantities. It is recommended that 15 drops of chlorine bleach be added to each liter of water. The water and solution （ 溶液 ）should also be replaced each day. |
A: Advance Reservations．Can I help you?
B:小题1:
A: Yes, we do have a single room available for those dates．
B: What is the rate, please?
A: The current rate is $50 per night．
B: 小题2: ．
A: For $50 you will have a radio, a color television, a telephone and a major international newspaper delivered to your room every day．
B: That sounds not bad at all．I’ll take it．
A: 小题3: ．
B: Yes, it is Charlson．
A: How do you spell it, please?
B: It’s C-H-A-R-L-S-O-N．
A: C-H-A-R-L-S-O-N． 小题4: ．
B: （010）888-1000．By the way, I’d like a quiet room away from the street if that is possible．
A: 小题5: ．OK．We look forward to your visit．
B: Thank you and good-bye．
A: Good-bye．| A．What services come with that? | | B．A quiet room away from the street is preferred． | | C．Do you have a single room with a bath for October 5? | | D．What about your telephone number? |
E.Yes, I’d like to book a single room with a bath from the afternoon of October 4 to the morning of October 10．
F.Sorry, I forgot your telephone number．
G.Very good．Could you tell me your name, sir, please? |
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