单选题 Let us begin by saying that what does not cause our dreams. Our dreams do not come from" another" world. They are not messages from some outside source. They are not a look into the future, either.
All our dreams have something to do with our emotions, fears, longings, wishes, needs and memories. But something on the" outside" may affect what we dream, ff a person is hungry, or tired, or cold, his dreams may include a feeling of this kind. If the covers on your body, such as a quilt or a blanket, have slipped off your bed, you may dream that you are sleeping or resting on the ice and snow. The material for the dream you will have tonight is likely to come from the experiences you have today.
So the subject of your dream usually comes from something that has effect on you while you are sleeping (feeling of cold, a noise, a discomfort, etc. ) and it may also use your past experiences and the wishes and interests you have now. This is why very young children are likely to dream of angels, old children of school examinations, hungry people of food, homesick soldiers of their families, and prisoners of freedom.
To show you how what is happening while you are asleep and how your wishes or needs can all be joined together in a dream, here is the story of an experiment. A man was asleep and the back of his hand was rubbed with a piece of cotton. He would dream that he was in a hospital and his charming girl friend was visiting him, sitting on the bed and feeling gently his hand.
There are some scientists who have made a special study of why we dream, what we dream and what those dreams mean. Their explanation of dreams, though a bit reasonable, is not accepted by everyone, but it offers an interesting approach to the problem. They believe that dreams are mostly expressions of wishes that did' net come true. In other words, a dream is a way of having your wishes carried out.

单选题 According to the passage, dreams seem to be mainly caused by ______.
A. something from" another world" B. some of people's feelings
C. some materials people use D. people's uncomfortable surroundings

【正确答案】 B

【答案解析】be caused by和have something to do都讲的是原因，可定位到第二段的第一句，emotions， fears，longs和wishes都是feelings的具体表现，因此选[B]。[A]与第一段第二句不符；[C]、 [D]是作者举的具体例子，但不是引起人们做梦的主要原因，故排除。

单选题 What happens to us or what we do today will probably ______.
A. become the contents of our dreams
B. have nothing in common with the contents of our dreams
C. appear in our dreams just like the same in real life
D. appear in our dreams usually in the opposite way

【正确答案】 A

【答案解析】由题干what happened to us or what we do today可定位到第二段最后一句话。contents of our dreams是对material for the dream的同义转述，因此选[A]，同时排除[C]。[C]、[D]与原文内容不符。

单选题 Young children are likely to dream of angels because ______.
A. angels have once appeared in their examination
B. they have seen angels in their dreams before
C. they have a very strong desire to see angels
D. angels may bring them good luck in their examinations

【正确答案】 C

【答案解析】由题干angels可定位到第三段一、二句，根据第一句后半部分“人的愿望和需要会体现在梦中”由此推断孩子梦到天使，是因为他们有这种想见到天使的强烈愿望，因此选[C]。[A]、 [B]和[D]文中未提及。

单选题 Some scientists supported the statement that ______.
A. people's dreams exactly reflected what they experienced
B. people already know the direct cause of dreams
C. all of people's wishes can be reflected in their dreams
D. we may know people's wishes from the content of the dreams

【正确答案】 D

【答案解析】由题干可知本题考查科学家们的观点，可定位到最后一段最后两句话，意思是“现实中不能实现的愿望在梦中会实现”，因此选[D]从人们做梦的内容，可知他们的愿望。[A]对原文中的不太肯定的内容加以肯定；[B]原文未提及；原文倒数第二句话中是mostly“大部分”而不是 all“全部”，故排除[C]。

单选题 The best title of this passage would be ______.
A. How to Carry out Your Wishes B. Why People Dream
C. Dream, a Look into the Future D. New Findings about Dreams

【正确答案】 B

【答案解析】该题考查文章的主旨，纵观全文都是讲述梦的内容，即人为什么会做梦的问题，因此选 [B]；[A]与主题无关；[C]与原文第一段的最后一句话的内容相悖，[D]文章的主题并非主要阐述“新的发现”的具体内容，而是讲述人为什么会做梦。