阅读理解

　　Arabs consider it extremely(非常地)bad manners to start talking business immediately．Even the busiest government official or executive(经理主管人员)always takes extra time to be polite and offer refreshments．No matter how busy you are, you should make time for his hospitality(好客)．

　　The conference is a way of doing business throughout the Arab world．Frequently, you will have to discuss your business in the presence of strangers, who may or may not have anything to do with your business．Do not be surprised if your meeting is interrupted several times by people who come into the room unannounced, whisper, or speak softly to the person with whom you are talking, and leave．Act as though you do not hear, and never show displeasure at being interrupted．

　　Making decisions quickly is not an Arab custom．There is vagueness(含糊)in doing business in the Middle East, which will puzzle a newcomer．Give yourself lots of time and ask lots of questions．

　　When an Arab says yes, he may mean“maybe”．When he says maybe, he probably means“no”．You will seldom get a direct“no”from an Arab because it is considered impolite．Instead of“no”, he may say“inhallah”, which means“if God is willing”．On the other hand,“yes”doesn't necessarily mean“yes”．A smile and a slow nod might seem like an agreement, but in fact, your host is being polite．An Arab considers it impolite to disagree with a guest．

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从每小题的四个选项中，选出能回答所提问题或完成所给句子的最佳答案。

　　The weather is getting gotter．You are thirsty after playing basketball or riding home from school．A cold drink may be just the thing．But be careful of what you are drinking．Something that looks cool may not be good for our health．There are plenty of "energy drinks" on the market．Most of them have beautiful colors and cool names．The lists on them tell you they are helpful to your health．Sounds great!

　　But after a careful check you may find that most energy drinks have lots of caffeine(咖啡因)in them．These drinks are especially aimed at young people, students, busy people and sports players．Makers sometimes say their drinks make you better at sports and can keep you awake．But be careful not to drink too much．

　　Caffeine makes your heart beat fast．Because of this, the International Olympic Committee has limited(限制)its use．Caffeine in most energy drinks is at least as strong as that in a cup of coffee or tea．Possible health dangers have something to do with energy drinks．Just one box of energy drink can make you nervous, have difficulty sleeping and can even cause heart problems．Scientists say that teenagers should be discouraged from taking drinks with a lot of caffeine in them．

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