(Question)
How much paper do you use every year? Maybe you can't answer this question quickly. In 1900 the world's use of paper was about one kilogram for each person in a year. Now some countries use 50 kilograms of paper for each person in a year. But countries like America, England and Sweden certainly use more paper than other countries. Paper was first made in China about 2000 years ago. It was made from the hair-like parts of certain plants. Paper was not made in southern Europe until about the year 1100. In 1500, a German named Schaeffer found out that one could make the best paper from trees. After that the forest countries of Canada, Sweden, America, Finland became the most important ones in paper making. When we think of paper, we think of newspapers, books and writing paper. But there are many other uses. Only half of the paper is used for books and things like that. Paper is very good for keeping you warm. Houses are often insulated(,  ) with paper. You may see some men asleep on a large number of newspapers. They're insulating themselves from the cold. In Finland the temperature is sometimes -40 centigrade (C). The farmers wear paper boots in the snow. Nothing could be warmer. Each year more and more things are made of paper. We have had paper cups and plates for a long time. But now we hear that chairs, tables and even beds can be made of paper. With paper boots and shoes, you can wear paper hats, paper dresses and paper raincoats. When you have used them away and buy new ones. People have made paper boats, but they haven't made paper planes or cars. Just wait they perhaps will. Why do farmers in Finland wear paper boots in the snow? A) Because they are so poor that they can buy only paper boots B) Because there are no other kinds of boots there C) Because paper boots are warmer than anything else there D) Because paper boots are so nice that they don't like other kinds
(Answer)
C


(Question)
Sunny countries are often poor. A shame, then, that solar power is still quite expensive. Eight19, a British company by Cambridge University, has, however, invented a novel way to _ this. In return for a deposit of around $10 it is supplying poor Kenyan families with a solar cell able to generate 2.5 watts of electricity, a battery that can deliver a three amp  current to store this electricity, and a lamp whose bulb is a light-emitting diode . The firm thinks that this system, once the battery is fully charged, is enough to light two small rooms and to power a mobile-phone charger for seven hours. Then, next day, it can be put outside and charged back up again. The trick is that, to be able to use the electricity, the system's keeper must buy a scratch card--for as little as a dollar--on which is printed a reference number. The keeper sends this reference, plus the serial number of the household solar unit, by SMS to Eight19. The company's server will respond automatically with an access code to the unit. Users may consider that they are paying an hourly rate for their electricity. In fact, they are paying off the cost of the unit. After buying around $80 worth of scratch cards--which Eight19 expects would take the average family around 18 months--the user will own it. He will then have the option of continuing to use it for nothing, or of trading it in for a bigger one, perhaps driven by a 10-watt solar cell. In that case, he would go then through the same process again, paying off the additional cost of the upgraded kit at a slightly higher rate. Users would therefore increase their electricity supply steadily and affordably. According to Eight19's figures, this looks like a good deal for customers. The firm believes the average energy-starved Kenyan spends around $10 a month on oil--enough to fuel a couple of smoky lamps--plus $2 on charging his mobile phone in the market-place. Regular users of one of Eight19's basic solar units will spend around half that, before owning it completely. Meanwhile, as the... What might be the most suitable title for the passage? A) Solar Energy: Starting from Scratch. B) Eight19: a creative British Company. C) Kenyan Families: Using Solar Energy for Free. D) Poor Countries: Beginning to Use Solar Energy.
(Answer)
A


(Question)
To protect you and your fellow passengers, the Transportation Security  Administration (TSA) is required by law to check all checked baggage. As part of this process, some bags are opened and checked. Your bag was among those selected for check. During the check, your bag and its contents may have been searched for items forbidden by law such as fireworks, fuels, gunpowder, etc. At the completion of the check, the contents were returned to your bag, which was resealed with a "special" lock. If the TSA screener was unable to open your bag for check because it was locked, the screener may have been forced to break the locks on your bag. TSA sincerely regrets having to do this, and has taken care to reseal your bag upon completion of check. However, TSA is not _ for damage to your locks resulting from this necessary security precaution   . For packing tips and other suggestions that may assist you during your next trip, visit: WWW.TSATravelTips.us. We appreciate your understanding and cooperation. If you have questions, comments, or concerns, please feel free to contact the Transportation Security Administration Consumer Response Center: Phone: toll-free at (866) 289-9673 Email: TellTSA@tas.dot.gov The passage is most probably written to those who   _  . A) had their baggage selected for checking B) refused to check their baggage C) kept some damaged items in their baggage D) left their baggage unlocked
(Answer)

A