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一、数字推理每题给你一个数列，但其中缺少一项，要求你仔细观察数列的排列规律综合判断，然后从四个供选择的选项中，选出最恰当的一项，来填补缺项。 -6,-3,2,-1,( )
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NO. 1 Global English CentreGeneral English in all four skills: listening, speaking, reading, and writing.3-month (700 yuan), 6-month (1 200 yuan), and one-year (2 000 yuan) courses.Choice of morning or evening classes, 3 hours per day, Mon.——Fri.Experienced college English teachers.Close to city centre and bus stops.Tel: 67605272 Add. 105 Zhongshan Road, 100082NO. 2 Modern Language SchoolSpecial courses in English for business, travel, banking, hotel management and office skill.Small classes (12—16 students) on Sat. & Sun. from 2:00—5:00 p. m.Native English teachers from Canada and the USA.Language lab and computers supplied.3-month course: 1050 yuan; 6-month: 1850 yuan.Write or phone: Modern Language School, 675 Park Road, 100056Tel: 67353019NO. 3 The 21st Century English Training CentreWe specialize in effective teaching at all levels.We offer morning or afternoon classes, both of which last three months and a half at a cost of 800 yuan.We also have a six-week TOFEL preparation class during winter and summer holidays.Entrance exams: June 1 and Dec. 1.Only 15-minute walk from city centre.Call 67801642 for more information. If you take the evening program, how many choices would you have You would have ______ choices.
阅读以下文字，完成以下问题。 说谎者控制不了脑波变化，谎话逃不出脑波监测。传统的测谎仪和FMRI图像测试结果有明显不同，也表明了如此复杂的说谎过程用传统测谎仪进行单一的生理指标判定并不科学。利用磁共振技术在今天可以辨别谁在撒谎，谁是说真话。 不过，功能性磁共振成像测谎也并非全能，有着致命的弱点。沈政告诉记者，这一技术只记录说谎后大脑变化的最终结果，然而神经活动却在瞬间完成，说谎也不例外。功能性核磁共振监测的血氧含量是在大脑完成说谎以后的3-6秒发生明显变化，那时，神经活动已经结束。因此，监测到的是心理括动的一个最终结果，而不是活动过程。 不过，与之相比，还有另外一个办法，“说谎时，脑波会发生变化，脑波的变化是说谎者控制不了的。”沈政说。 这个办法被叫做脑事件相关电位。据沈政介绍，这种办法记录的是脑波的变化，而且时间[ ]率非常精细，到了毫秒数量级的脑信号变化，每一毫秒的大脑变化都能够被记录下来。不过，这种方法的空间定位却较功能性磁共振成像测谎差，它不能够准确地记录哪些脑区结构在撒谎过程中发生了变化。 “兼具这两种技术的测谎，将是比较理想的。”沈政告诉记者，目前国际上已经有先进的国家将这两项技术结合起来，只是还没有同时用于测谎。这两项技术的结合运用，将是脑认知科学上最热的课题。 在美国费城Temple大学医学院功能性大脑影像中心主任斯考脱发罗所进行的实验中，就有人成功地通过了传统的测谎仪，而没被测试出来。有专家认为，在今天测谎仪面临巨大争议时，FMRI有望成为一种新型的测谎仪而介入司法活动中。 不过，北京大学心理系教授、博士生导师沈政认为，要使功能性磁共振成像测谎得到普遍、广泛地应用，还需要相当长的时间。 一方面，功能性磁共振成像测谎的设备非常昂贵，一套设备价值200多万美元；另一方面，对实验室的条件和操作人员的要求都非常高。这样的成本，无疑是推广、普及该项技术的一大障碍。 相对而言，脑事件相关电位的测谎较为容易一些。这项技术实施条件并不是很苛刻，成本较低，同时还能监测到大脑内部活动，克服传统测谎仪的弊端。专家预测，这项技术很快即可得到广泛应用。 测谎，是对谎言的鉴别活动。 自1895年意大利犯罪学家朗布罗梭首先使用“测谎仪”从事犯罪侦查以来，测谎技术的发展迄今已有100余年历史。我国自1991年研制出第一台“测谎仪”以来也有10年的历史了。 应用测谎技术，使世界各国的犯罪调查技术向前迈进了一大步，由以往只对物的鉴识，进而为对人的鉴识，成为世界侦查史上一大突破。 不过传统的测谎技术仅是对生理指标进行分析比较，因此遭到不少专家的质疑。人们正期待着一种新的、更为科学的测谎仪器面世。 根据原文所提供的信息，下列推断不正确的一项是( )。
假如你叫张明，你的美国朋友Sam今年暑假打算到中国来学习汉语，你得知师范大学将于 2010年7月20日举办为期六周的“暑假汉语培训班”，请写信将此信息告诉他。 信的内容应包括以下几点： 1．“暑假汉语培训班”开班的时间、地点、学费 2．如果他决定来，你愿意提供住宿并帮他练习汉语 3．如果他来，请他帮你带一盘你喜欢的英文歌，曲磁带
The world is not only hungry; it is also thirsty for water. This may seem strange to you because nearly 75% of the earth’s surface is covered with water. But about 97% of this huge amount is seawater or salt water. Man can only drink and use the other 3%—the freshwater that comes from rivers, lakes, underground, and other sources. And we cannot use all of that, because some of it is in the form of iceberg and glaciers (冰河). Even worse, some of it has been polluted. However, as things stand today, this small amount of fresh water, which is constantly being replaced by rainfall, is still enough for us. But our need for water is increasing rapidly almost day by day. Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on. A limited water supply would have a bad effect on agriculture and industry. We all have to learn how to stop wasting our precious water. One of the first steps we should take is to develop ways of reusing it. Experiments have already been done in this field, but only a small scale. The systems that have been worked out resemble those used in spacecraft. The author says that we may face a severe worldwide water shortage in the future because______.
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