阅读理解。 Microwaves may be great at warming up food, but what about warming pe

题文

阅读理解。    Microwaves may be great at warming up food, but what about warming people?    Using microwaves to directly heat owners of a room would save much of the energy wasted by heating walls and furniture. And despite popular ideas about microwaves, this technique would be safe, according to Charles R. Burlier of the Microwave Rearch Center in Marlborough, New Hampshire. Low-power microwaves only penetrate (贯穿) the skin (low-power microwave penetration in a ham is about 0.2 inches, for example) and with no negative effects.    To test this idea, Buffler subjected himlf to microwaves in a special room using a standard 500-watt, 2459 MHz magnetron (磁控管). He found that a person will start to feel warmth at about 20milliwatts per square centimeter (mw. / sq. cm. ) ; a satisfactory feeling of warmth occurs between 35 and50mw. / sq. cm. By comparison, a person standing in noonday summer sun feels the amount of 85mw. / sq. cm. And a frozen meat pie in your microwave oven receives about 1000 mw. / sq. cm.    In hous of the future, each room could be provided with its own magnetron, says Buffler. When you stepped into the living room, for example, a motion detector (运动感应器)would turn on the magnetron, filling the room with low-power microwaves. In the same way that a microwave oven heats up a hamburger, but not the plate it’s on, you would feel warmth from the microwaves without changing the temperature of your coffee table. (You could, however, make your favorite easy chair even more comfortable by treating it with a radiation-absorbing chemical.)    While it might be some time before homeowners are comfortable enough with the idea to t up whole-body microwave heaters in hous, Buffler says microwaves may attract livestock(家畜) farmers. Lambs that are born outdoors in winter, for example, are frequently lost to cold. Microwaves could warmthe lambs safely and quickly.1. Which of the following can tell the main idea of the passage?A. A new heating system.B. A new microwave oven.C. A popular technique.D. The magnetron. 2. According to Paragraph 2, which of the following does not describe the characteristics of a microwave heater?A. It directly heats people in a room.B. It heats walls and furniture in a room.C. It is safe. D. It saves energy．3. The test conducted by Buffler shows that when a person feels comfortable warmth, he receives about________________.A. 20 mw. / sq. cm.B. 40 mw. / sq. cm.C. 60 mw. / sq. cm.D. 85 mw. / sq. cm.4. According to Paragraph 4, which of the following fills the room with low-power microwaves?A. The magnetron.B. The motion detector.C. The microwave oven.D. The radiation-absorbing chemical.5. Which of the following statements about microwave heaters would Buffler most probably agree with?A. Microwave heaters will soon be widely ud by homeowners.B. Microwave heaters sometimes make people feel uncomfortable.C. Perhaps microwave heaters will be first ud by livestock farmers, who wish to protect their lambs in winter. 题型：未知难度：其他题型

答案

1-5.  ABBAC

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考点

据考高分专家说，试题“阅读理解。 Microwave.....”主要考查你对 [日常生活类阅读 ]考点的理解。 日常生活类阅读

日常生活类阅读的概念：

日常生活这一话题主要涉及人们衣食住行等方面的活动。这一话题的选材主要针对人们日常的工作，生活以及学习情况。做这一类题时，最主要的是要把握好人物的活动内容，时间和地点。

日常生活类阅读题答题技巧：

【题型说明】该类文章内容涉及到人们的言谈举止、生活习惯、饮食起居、服饰仪表、恋爱婚姻、消遣娱乐、节日起源、家庭生活等。文章篇幅短小，追根溯源，探索各项风俗的历史渊源，内容有趣。命题也以送分题为主，如事实细节题、语义转换题、词义猜测题和简单推理判断题等。虽然这类文章读起来感觉轻松，试题做起来比较顺手，但绝不能掉以轻心。因为稍不留神，就会丢分。 【备考提醒】为了保证较高准确率，建议同学们做好以下几点： 1、保持正常的考试心态。笔者在教学中发现，越是容易的试题，同学们越是容易失分。为什么呢？因为在这种情况下，同学们极易产生麻痹思想，认为题目好做，就不引起高度重视，于是思维不发散、不周密。而命题人就是利用同学们的这一弱点，设计陷阱题。所以，无论试题难易与否，我们都要保持正常的考试心态。试题容易，不欣喜；试题难，不悲观。 2、根据前面讲到的方法，认认真真、细细心心做好事实细节题。 3、做好语义转换题。这类题是根据英语中一词多义和某些词语在文中能表达一定的修辞意义的原则而设计的。要求同学们解释某生词的含义，确定多义词或短语在文中的意思，确认文中的某个代词所指代的对象，或者对英语中特有的表达、格言、谚语进行解释。这种题要求同学们一定要根据上下文猜测词义或理解句子，切不可望文生义。 4、做好简单推理判断题。简单推理判断题要以表面文字为前提，以具体事实为依据进行推理，做出判断。这种推理方式比较直接，只要弄清事实，即可结合常识推断出合理的结论。