单选题
We all get tired when night comes. Then we need to sleep. That is why we need beds. But not all beds are the same. There are many kinds of beds. One kind of bed is the bunk bed. Bunk beds are two beds placed one on top of the other. This kind of bed doesn't take as much room as two beds side by side. It's a nice way to sleep if two or more children are sleeping in the same room. That is why families with many children use them. A water bed can be a lot of fun. It is a very big bag that's filled with water. The water can be made nice and warm. You move up and down as the water moves. It's something like being on a boat. It rocks you to sleep. A cot is a very light bed. When it's not being used, you can fold it up and put it out of the way. Then you can take it out again when you need it. You can use it for a friend. A cot is just right for someone who is sleeping over, In some places people sleep on mats. The mats are made of long pieces of grass. People take them out at night on the floor. In the morning people take them up off the floor and roll them up. Think of how much room a house has with no beds!
单选题
In this passage, it mentioned ______ kinds of bed. A. four B. three C. two D. one
【正确答案】
A
【答案解析】本题要求回答“文章中提到几种不同种类的床?”，通读全文可知，文中提到四种床： bunk bed，water bed．cot and mat，故选A。
单选题
According to this passage, families with many children often use ______. A. water beds B. bunk beds C. mats D. cots
【正确答案】
B
【答案解析】细节题。本题要求回答“根据这篇文章，孩子较多的家庭通常使用何种床?”，原文第二段最后一句说“That is why families with many children use them.”(这就是孩子多的家庭使用这种床的原因)，因此可知孩子多的家庭通常使用高低床，故选B。
单选题
Which of the following statements is NOT mentioned in this passage? A. A cot can be folded if it is not used. B. At least two persons can sleep on a bunk. C. Water beds are being used as a boat. D. Mats are very convenient for people.
【正确答案】
C
【答案解析】本题要求回答“下列哪一种说法文章中没有提到?”，A折叠床如果不用的话可以叠起来放；B高低床最少可容纳两个人睡，D草垫床人们使用起来很方便，三个选项在文章中都有提到。只有选项C水床可以被当作船使用，与原文第三段中“It's something like being on a boat.”(有点儿像是在船上)意思不符合，故选C。
单选题
The passage is mainly about ______. A. the importance of bunk beds B. the difference between cots and mats C. several different kinds of beds D. the role that water beds play
单选题
Which of the following statements is true according to the passage? A. People sleep on bunks when they feel tired. B. Children like bunks very much. C. Water beds are dangerous to sleep on. D. A bunk bed takes up less room than two beds side by side.
【正确答案】
D
【答案解析】判断推理题。本题要求回答“根据文章，下列哪种说法是正确的?”，A人们累的时候就睡在高低床上，B孩子们非常喜欢高低床；C睡在水床上很危险，以上三项均与原文意思不相符合，只有D是正确的。原文第二段第三句，“This kind of bed doesn't take as much room as two beds side by side.”故选D。