(Question)
Many places in the world need more fresh water. Every country is trying to find ways to turn salt water into fresh. Why aren't there many factories like the Symi factory? In some places the sun is not hot enough. Or it does not shine every day. In such places other ways of heating sea water can be used. These ways cost more money, but they work faster than the sun. By boiling sea water with high heat a lot of fresh water can be made quickly. But heating is not the only way to get fresh water from salt water. Other ways are tried. One way is freezing. The fresh part of salt water freezes first. To get fresh water, the bits of ice are taken out. Which way is the best? The one that gives the most water for the least money. It may be a different way for each place. Symi's way seems very good for small, hot places. It does not make much water at a time. But the factory is easy to build and costs little. That is why people in many dry places talk about Symi. What fact doesn't the passage mention ? A) New ways of getting fresh water. B) A lot of fresh water can be made quickly by heating. C) The best way is to get the freshest water with the least money. D) The Symi's way doesn't work in dry places.
(Answer)
D

(Question)
One of Anna's friends has chickenpox . Two days later, Katie has chickenpox. Anna's mother says: " Your best friend has chickenpox . We have to keep an eye on you." The next evening, Anna finds some red spots on her face. The next morning, she stays home from school. She can't go to her grandpa's birthday party. She can't go to her soccer practice. She can't go to the supermarket with her mother.Anna cries : " I don't like chickenpox. I miss school. I miss my friends." Then Anna's mother has an idea. After lunch, Katie, Mike and Danny come to Anna's home--- all with spots like her. Anna's mother says : " Let's have a chickenpox party!" All the afternoon, the kids play games. When Anna's friends have to go home, "See you at school." Katie says. "Having chickenpox is not so bad." says Danny. "I know," Anna says with a laugh , " Can we all have chickenpox again next week?" first has chickenpox. A) Katie B) Mike C) Danny D) We don't know
(Answer)
D

(Question)
The world itself is becoming much smaller by using modern traffic and modern communication. Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest problems is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even eat it. Man has been polluting the earth. The more people, the more pollution. Many years ago, the problems was not so serious because there were not so many people. When the land was used up or the river was dirty in one place, man moved to another place. But this is no longer true. Man is now slowly polluting the whole world. Air pollution is still the most serious. It's bad for all living things in the world, but it is not the only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us angry more easily. Many countries are making rules to fight pollution. They stop people from burning coal in houses and factories in the city, and from putting dirty smoke into the air. Pollution by SO2 is now the most dangerous kind of air pollutions. It is caused by heavy traffic. We are sure that if there are fewer people driving there will be less air pollution. The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in pollution at the same time. : Hundreds of years ago, life was _ it is today. A) much easier than B) as easy as C) much harder than D) as hard as
(Answer)
C