It is said that all the dreams serve a purpose(目的)．While there is no agreement among scientists about why we dream, there are many ideas about the different kinds of dreams we have．
One common kind of dream is the repeating dream, in which the same story is repeated again and again, often for many months or even years．Some believe these are a sign people have a problem in their life and once that problem is gone then the dream will stop．Others think they are a way to help people remember something very important．
Another well－known kind of dream is the nightmare．The pictures and stories in such dreams make people very afraid and dreamers usually remember them far more clearly than normal dreams．The cause of such dreams may be seeing something frightening such as a car accident or some dead snakes．Others think such dreams may be trying to make a person pay attention to something that is dangerous in their life．
Daydreams happen during wake－time when we forget where we are or what we are doing and find ourselves in a made－up story or unreal word．We often daydream when we are doing something that is not interesting or exciting．They help us think about our future．
Lucid(清醒的)dreams are the most fun．These happen when dreamers suddenly understand that they are dreaming．Instead of waking up, they stay in the dream and are able to control what happens in the dream as if they are making a movie．
(1)
Scientists ________ about the different kinds of dreams．
Good afternoon.Welcome to England.We hope that your visit will be a pleasant one.Today I'd like to tell you something about a few of our laws.
The first one is about drinking.Now you may not buy wine in this country if you are under 18 years of age,nor may your friends buy it for you.
The second one,noise.Enjoy yourselves by yourself,but don't make unnecessary noise,especially at night.We ask you to respect other people who may wish you be quiet.
The third one,crossing the road.Be careful.The traffic moves on the left side of the road in this country.Use pedestrian crossing (人行横道) and don't take any chances when crossing the road.
My next point is about rubbish.It isn't lawful to drop rubbish in the street.When you have something to throw away,please put it in your pocket and take it home,or put it in a dustbin.
Finally,smoking.It is against the law to buy cigarettes if you are less than 16 years of age.
I'd like to finish by saying that if you need any kinds of help,you should contact the police.They will be glad to help you.You can call,write or go to ask any policemen.
(1)
Who do you think is most likely to make the speech?
A.A guide. B.A person who makes laws.
C.A teacher. D.An English officer.
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(2)
How many laws are discussed in the speech?
A.Four. B.Three. C.Six. D.Five.
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(3)
The main purpose (目的) of this speech is to ______.
A.tell people that those above 18 can drink and smoke in England
B.declare (宣布) the different laws in England
C.give advice to the travelers in England
D.warn people against going to England
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(4)
The underlined word“contact”in the last paragraph means“______”.
A.keep up B.go to see C.make a call to D.bring trouble
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(5)
From the passage we can learn______.
A.in England,if you are under 18 years of age,you can't buy wine,but your friends can buy it for you
B.you may not buy cigarettes unless you are above 16 years of age
C.because the traffic moves on the left side of the road,you must use the pedestrian crossing when crossing the road
