早培全科模拟题三.docx

早培全科模拟题三数学局部:1.用火柴棒按以下图中的方式搭图形，按照这种方式搭下去，搭第8个图形需 根火柴棒，搭第n个图形需 根火柴棒.2.（第1个图形）（第2个图形）（第3个图形）：.——_8,那么 开x等于.一项工程，甲队单独做12天可以完成，甲队做3天后乙队做2天，那么可以完成工 程的一半，现在甲乙合做假设干天后，由乙队单独完成，两队合做时间与乙队独做时 间相等，完成任务共用 天.3 . A,B,C,D四个班的人数均少于50人，平均为46人，A,B两班相差 4人，B,C两班相差3人，GD两班相差2人，如果A班人最多，那么 A班有 人.future, but in the long term it has the potential to change the way you travel. It will become no more expensive than driving your car on the motorway. Travel time could be reduced by more than half.So the next time you are told to fasten your seat belt, it may be to prepare for take-off.33. We know from the passage that the flying carA. has to run on special fuel B. will replace traditional planesC. is popular with the rich D. can shift between two formsThe flying car is presently forbidden to take off because.A. many people think driving it not very safeB. its hard to decide whether its a car or a planeC. the government and the authorities don't accept itD. there are still some technical problems to be solved 35. We can learn from the passage that.A. few people will be able to afford a flying carB. flying cars may share the market in the futureC. traffic jams will disappear because of flying carsD. driving a flying car doesn't require a pilots licensePassage 2Electronics and FashionAs you probably know, clothing has been around since the time of Adam and Eve—and it has become a lot more complex than the early fig leaf design. On the other hand, electronics have been with us for only a few hundred years-beginning with Franklin running around with his portable lightening rod. With gadgets more popular than ever these days, the combination of clothing and electronics was inevitable (unavoidable).First let me mention a line of jackets launched in the fall of 2000 by Royal Philips' Electronics and Levis Strauss & Amp Co. Philips' original press release called it umixing fashion with technology in the creation of work wear for the digital age”. I love that kind of talk.Each design is said to contain ua simple body area network using wires in the body design”. What it really does is allow you to use a Philips Xenium GSM mobile phone and MP3 player in a jacket-all controlled by a universal remote.A company named Vivo Metrics has designed a different type of electronic garment. It*s called Life Shirt, and its a hearing monitoring system in a flexible, washable T-shirt.Vivo Metrics has built a system that allows doctors to monitor more than 40 physiological signs (heart rate, breathing rate, blood pressure, etc.) over extended periods of time while patients are away from a doctor's office or hospital. One of the early target markets is people who suffer from sleep apnea.'Various wires plug into a Springboard module that records and holds all of the medical data. The patients can then send the information wirelessly to their doctor or send the module to the lab.55But it says that this is the type of product that will probably never be available to consumers. Its real purpose is for clinical and medical research.The company hopes to market the Life Shirt to medical companies and research centers conducting trials of new drugs. Vivo Metrics is going to show off the product. The company says it has “secured one driver, Jon Herd, to wear the shirt during his race”.I believe these products are only the tip of the iceberg. In the future I think well see more varied combinations of electronics and clothing. Theyll find new ways to link future computer designs to clothing to improve our lives seamlessly (无缝地). 36. From the passage, we learn the jackets launched in the fall of 2000.A. are controlled by a mobile phoneB. can play an MP3 without a remoteC. contain a wireless body area networkD. are a clothing creation for the digital age37.According to the passage, Life ShirtA. is available to consumersB. has been used by research centersC. can monitor patients outside the hospitalD. only targets people with sleeping problems38.The author mentions the two products toA. compare the advantages of the two designsB. introduce the development of clothing designC. promote the great creations of the companies39.D. show the combination of clothing and technologyWhafs the author's attitude towards the combination of electronics and clothing?A. Negative.C. Skeptical.B. Optimistic.D. Objective.科学局部:40.化石存在于(A、花岗岩)B、玄武岩C、石灰石D、沉积岩41 .地球上的冰大概占有总水量的百分之几？A、75%B、10%( )C、2%D、0.3%42 .以下有关云的说法，哪个是错误的？(A、云由水汽凝结而成C、气温下降时，云比拟容易形成B、D、)云可能由液态水和冰晶组成及其干净的空气有利于云的形成43 .以下有关现代社会金属用途的说法错误的选项是？A、铅用来制造涂料C、锡涂在金属外表防止金属腐蚀B、D、( )锂可以用来制造电池镁铝合金强度局、质量轻44 .人类在吃鸡蛋的时候主要吸收的是什么？A、核酸B、氨基酸C、) 丙三醇D、葡萄糖45 .以下哪种简单机械没有改变力的方向A、斜面B、轮轴C、D、螺丝46.相比于两项插头，对于三项插头多出来的一个触头的描述正确的选项是(A .接地线，防止触电C ,接零线，防止触电B.接火线，保障电路D.接保险丝，保障电路47.不属于常见干燥剂的是（）A、生石灰 B、无水氯化钙C、硫酸钙D、铁锈48.远视眼需要佩戴哪种眼镜（）A、墨镜B、凸透心1 说C、凹透镜D、偏振镜49.验钞。