多选题Normally an individual thunderstorm lasts about 45 minutes, but under certain conditions the storm may ______, becoming ever more severe, for as long as four hours.AwaneBmoderateCpersistDendureEvacillateFdisperse

共用题干
Sleep
Sleep is part of a person's daily activity cycle .There are several different stages of sleep,and they too occur in cycles.______(46)
When you first drift off into slumber,your eyes will roll about a bit,your temperature will drop slightly,your muscles will relax,and your breathing will slow and become quite regular. Your brain waves slow down a bit too,with the alpha rhythm of rather fast waves predominating for the first few minutes.______(47)
For the next half hour or so,as you relax more and more,you will drift down through stage 2 and stage 3 sleep.______(48)
Then about 40 to 60 minutes after you lose consciousness you will have reached the deepest sleep of all.Your brain waves will show the large slow waves that are known as the delta rhythm.
This is stage 4 sleep.You do not remain at this deep fourth stage all night long,but instead about 80 minutes after you fall into slumber,your brain activity level will increase again slightly. ______(49)
Your eyes will begin to dart around under your closed eyelids as if you were loo-king at something occurring in front of you.______(50)
It is during REM sleep period,your body will soon relax again,your breathing will grow slow and regular once more,and you will slip gently back from stage 1 to stage 4 sleep-only to rise once again to the surface of near consciousness some 80 minutes later.

______(48)
A: The delta rhythm will disappear,to be replaced by the activity pattern of brain waves.
B: If you are an average sleeper,your sleep cycle is as follows.
C: In stage 4 sleep people tend to dream.
D: The lower your stage of sleep,the slower your brain waves will be.
E: This period of rapid eye movement lasts for some 8 to 15 minutes and is called REM sleep.
F: This is called stage 1 sleep.

The storm caused severe damage.

A: physical
B: accidental
C: serious
D: environmental

On television all over the world there are programmes about the work of the police．They are popular because they are usually very exciting．In London there is a television programme called"Police Five"--because it is on for five minutes once a week．A television reporter,Shaw Taylor,talks about crimes in the London area．He asks for public help．The police station needs the help of ordinary people because sometimes you or I have information that can be useful to the police.
Shaw Taylor shows pictures of paintings,jewellery(珠宝)and other things which thieves stole during the week．Sometimes he shows the car that the thieves escaped in．When people see men or things on the television programme which they may remember,they can tell the police where they saw them．With their help the police may catch more criminals.
Sometimes the police find a car or some money．Shaw Taylor shows them on television．The owners sometimes see them．Then they can telephone the police and say,"Thank you very much--that's mine!"

The television programme is called"Police Five",because it is about the work of the police and__.

A.it is on for five times every seven days
B.it lasts five minutes a week
C.it begins at five in the afternoon
D.it is a programme about five policemen

______ that the pilot couldn’t fly through it.

A.The storm so severe was
B.So severe was the storm

C.So the storm was severe

D.Such was the storm severe

The storm caused severe damage.

A: physical
B:accidental
C:serious
D:environmental

共用题干
The First Four Minutes

When do people decide whether or not they want to become friends?During their first four minutes
together,according to a book by Dr. Leonard Zunin.In his book,Contact:The First Four Minutes,he
offers this advice to anyone interested in starting new friendships:"________(46)A lot of people's whole
lives would change if they did just that."
You may have noticed that the average person does not give his undivided attention to someone he has
just met._________(47)If anyone has ever done this to you,you probably did not like him very much.
When we are introduced to new people,the author suggests,we should try to appear friendly and
self-confident. In general,he says,"People like people who like themselves".
On the other hand,we should not make the other person think we are too sure of ourselves.It is
important to appear interested and sympathetic,realizing that the other person has his own needs,fears,and
hopes.
Hearing such advice,one might say,"But I'm not a friendly,self-confident person.That's not my
nature.It would be dishonest for me to act that way."
__________(48)We can become accustomed to any changes we choose to make in our personality."It is
like getting used to a new car. It may be unfamiliar at first,but it goes much better than the old one."
But isn't it dishonest to give the appearance of friendly self-confidence when we don't actually feel that
way?Perhaps,but according to Dr. Zunin,"total honesty"is not always good for social relationships,
especially during the first few minutes of contact. There is a time for everything,and a certain amount of
play-acting may be best for the first few minutes of contact with a stranger. That is not the time to complain
about one's health or to mention faults one finds in other people.It is not the time to tell the whole truth
about one's opinions and impressions.
________(49)For a husband and wife or a parent and child,problems often arise during their first
four minutes together after they have been apart. Dr. Zunin suggests that these first few minutes together be
treated with care.If there are unpleasant matters to be discussed,they should be dealt with later.
The author says that interpersonal relations should be taught as a required course in every school,along
with reading,writing,and mathematics.__________(50)That is at least as important as how much we know.

_________（49）
A:In reply,Dr. Zunin would claim that a little practice can help us feel comfortable about changing our social habits.
B:Much of what has been said about strangers also applies to relationships with family members and friends.
C:In his opinion,success in life depends mainly on how we get along with other people.
D:Every time you meet someone in a social situation,give him your undivided attention for four minutes.
E:He keeps looking over the other person'S shoulder,as if hoping to find someone more interesting in another part of the room.
F:He is eager to make friends with everyone.

Which of the following statements about American education is wrong？( )

A.Elementary and secondary education is free and compulsory.
B.More public collges，universities than private ones.
C.Private school fnancially supported by religious，nonreligious and private organizations，individuals.
D.Credits taken at community colleges are normally applicable to requirement for a four-year bachelor’s degree.

The（ ）structure describes a process that may be repeated as long as a certain remains true.

A.logic
B.sequential
C.selection
D. loop

At the first sight the planet Mars does not appear very welcome to any kind of life．It has very little oxygen and water,the temperature at night is below-50~Cand winds of 100 miles per hour cause severe dust storms．However,the surface of the planet seems to show that water flowed across it some time in the past,and it is believed that there is enough ice at the poles to cover the planet with water if it melts．Although there is no life on the Mars now,some scientists think that there may have been some form of life long time ago．At that time,the planet had active volcanoes;the atmosphere was thicker and warmer;and there was water．In fact,in some ways the Mars may have been similar to the Earth,where life exists.
Some people believe that the Mars could support life in the future if the right conditions were produced．The first step would be to warm the planet using certain gases which trap the Sun's heat in the planet's atmosphere．With warmth,water and carbon dioxide(二氧化碳),simple plants could begin to grow．These plants could slowly make the Mars more suitable for living．It is estimated that the whole process might take between 100,000 and 200,000 years．In the meantime,people could begin to live on the planet in special closed environments．They would provide a lot of useful information about conditions on the Mars and the problems connected with living there.

Which is the best title for this passage?

A.The Possibility of Life on the Mars
B.Future Conditions on the Mars
C.The Mars and the Earth
D.A Study of the Climate of the Mars

At the first sight the planet Mars does not appear very welcome to any kind of life．It has very little oxygen and water,the temperature at night is below-50~Cand winds of 100 miles per hour cause severe dust storms．However,the surface of the planet seems to show that water flowed across it some time in the past,and it is believed that there is enough ice at the poles to cover the planet with water if it melts．Although there is no life on the Mars now,some scientists think that there may have been some form of life long time ago．At that time,the planet had active volcanoes;the atmosphere was thicker and warmer;and there was water．In fact,in some ways the Mars may have been similar to the Earth,where life exists.
Some people believe that the Mars could support life in the future if the right conditions were produced．The first step would be to warm the planet using certain gases which trap the Sun's heat in the planet's atmosphere．With warmth,water and carbon dioxide(二氧化碳),simple plants could begin to grow．These plants could slowly make the Mars more suitable for living．It is estimated that the whole process might take between 100,000 and 200,000 years．In the meantime,people could begin to live on the planet in special closed environments．They would provide a lot of useful information about conditions on the Mars and the problems connected with living there.

Some scientists think there may have been life on the Mars in the past because__.

A.there is no life there now
B.there is a large amount of water at the poles
C.the Mars may be able to support life in the future
D.conditions may have been similar to those on the Earth

It is hard for the young people to imagine what severe conditions their parents once lived under.

A:sincere
B:hard
C:strict
D:tight

Their parents once lived under very severe conditions.

A:sound
B:hard
C:strict
D:tight

Their parents once lived under very severe conditions.