Question

阅读理解 　　①Many 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 isn't hot enough, or it doesn't shine every day. In these 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 pieces 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 doesn't make very much water at a time. But the factory is easy to build and cost little. 　　②That is why people in many dry places talk about symi! (1) 把短文中①句改为被动语态：_____________ (2) 把短文②句译成汉语：_________________ (3) From the passage we know that fresh water_________________. 　　A.is needed in many countries　　B.is needed in every country 　　C.can be used in many ways　　D.is very important for factories [　　] (4) The writer is mainly talking about water making factories in different countries.(判断正误) (5) What is the meaning of“freezing?”

Answer 1

答案：3．B ;