Light travels at a speed which is about a million times faster than the speed of sound. In one second, light travels about 300,000km, but sound travels only 344m. You can get some idea of this difference by watching the start of a race. If you stand some distance away from the starter, you can see smoke come from his gun before the sound reaches your ears. This great speed of light produces some strange facts. Sunlight takes about 8 minutes to reach us. If you look at the light of the moon tonight, remember that the light rays（光线）left the moon 1.3 seconds before they reached you. The nearest star is so far away that the light which you can see from it tonight started to travel towards you four years ago at a speed of nearly 2 million km per minute. In some cases the light from one of tonight’s stars started on its journey to you before you were born.
Thus, if we want to be honest, we cannot say “ The stars are shining tonight.” We have to say, “ The stars look pretty. They were shining four years ago but their light has only just reached Earth.” Light speed is ________ than sound speed.
| A．millions times faster | B．a million times slower |
| C．about millions of times faster | D．about a million times faster |
If you stand 200 meters away from a man who is firing a gun to start a race, you will find out that _____.
| A．you can hear the gun before you see the smoke. |
| B．sound does not travel as fast as light. |
| C．the sound of the gun will reach you before the man fires his gun. |
| D．sound travels about a million times faster than light. |
What does “ it” refer to?
| A．moon light | B．light rays | C．the nearest star | D．the moon |
The scientific way of saying “ The stars are shining tonight” should be________.
| A．the stars have been shining all the time. |
| B．the stars seen tonight will be shining four years later. |
| C．the stars were shining long ago but are seen tonight. |
| D．the starlight seen today could be seen four years ago. |
To extinguish （熄灭）different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable （手提式的）kinds operate for less than a minute, so they are useful only on small fires. The law requires ships, trains, buses and planes to carry extinguishers.
Since fuel（燃料）, oxygen and heat must be present in order for fire to exist, one or more of these things must be removed or reduced to extinguish a fire. If the heat is reduced by cooling the material below a certain temperature, the fire goes out. The cooling method is the most common way to put out a fire. Water is the best cooling material because it is low in cost and easy to get.
Another method of extinguishing fire is by cutting off the oxygen. This is usually done by covering the fire with sand, steam or some other things. A blanket may be used do cover a small fire.
A third method is call
ed separation, which includes removing the fuel, or material easy to burn, from a fire, so that it can find no fuel.
The method that is used to put out a fire depends on the type of fire. Fires have been grouped in three classes（级别）. Fires in wood, paper, cloth and the like are called Class A fires. These materials usually help keep the fire on. Such fires can be stopped most readily by cooling with water. If a fire breaks out on a bus, which of the following should be ready there for you to use?
| A．Sand | B．An extinguisher | C．A blanket. | D．Water |
To cover a small piece of burning wood with a basin in order to stop the fire i
s an example of _______.
| A．separating the fire | B．cutting off the oxygen |
| C．removing the fuel | D．reducing the heat |
In choosing how to put out a fire, we should first be clear about_______.
| A．when it breaks out | B．how it comes about |
| C．what kind it is | D．where it takes place |
What would the author probably discuss in the paragraph that follows?
| A．Another class of fires | B．Another type of extinguishers |
| C．How fires break out. | D．How fires can be prevented. |
The crowd cheered and cheered. The man with the horn（号）waved and smiled his great smile. “More! More!” cried the crowd. And Louis Armstrong took his horn and began to play again.
Here he was in England. Now a famous man, he was rich. He knew many important people. Wherever he went, people knew his name. They wanted to hear his music. As he played the sad, slow songs, Louis thought of his home in New Orleans. He lived there as a boy. It was a busy, exciting city. But Louis’s family was very poor. He went to work to help his mother. He also went to school. One of Louis’s teachers asked him to join the school band. “This horn is yours until you leave our school,” his teacher said. Louis’s music was jazz a
nd he loved it. He remembered all the music he heard. He didn’t learn to read music until he was a man.
When he left school, he played on many bands. He loved his work and people loved him. They knew that he had a wonderful talent. Louis played in little towns and in big cities. Armstrong’s horn had as many sounds as ten horns—sometimes slow and sometimes sweet; sometimes fast and hot, high and low. His music was always strong and exciting. “He does make wonderful music,” said the man who listened happily. “Yes,” said another man, “he makes that horn speak. ”
The music ended and the crowd cheered. Louis Armstrong spoke with tears in his eyes, “I think, my friends, you can listen to as much jazz as I can play. I thought jazz was my music; but now I understand it is ours. It is beautiful that music brings us together. ”Louis went to work when he was _______.
| A．a schoolboy | B．a musician | C．famous | D．a man |
Louis was very smart but he didn’t learn to read music until ______.
| A．he left school. | B．he was in the the school band. |
| C．he became a grown-up. | D．he became famous. |
He was famous for ______.
| A．his horn | B．his sad songs |
| C．his wonderful jazz music | D．his love for music |
Which of the following is the best title for this story ?.
| A．Musician | B．A beautiful horn. |
| C．The man with the horn. | D．Sweet smiles. |
Air travel is such an everyday experience these days that we are not surprised when we read about a politician having talks with the Japanese Prime Minister one day, attending a meeting in Australia the following morning and having to be off at midday to sign a trade agreement in Hong Kong. But frequent long-distance flying can be so tiring that the traveler begins to feel his brain is in one country, his digestion（消化吸收）in another and his powers of concentration nowhere---in short, he hardly knows where he is.
Air travel is so quick nowadays that we can leave London after breakfast and be in New York in eight hours, yet what really upsets us most is that when we arrive it is lunch time while we have already had lunch on the plane and are expecting dinner.
Doctors say that air travelers are in no condition to work after crossing a number of time zones. Airline pilots, however, often live by their own watches. After a long air travel, a traveler _______.
| A．finds himself in a different world |
| B．finds his brain apart from his body |
| C．finds himself in Hong Kong the following morning |
| D．has little sense about where he is |
The sentence “Airline pilots often live by their own watches. ” means______.
| A．they don’t trust others’ watches |
| B．they don’t change their watches |
| C．they make a living by their own watches |
| D．they do as they used to do |
Doctors suggest the travelers_______?
| A．should rest when they arrive in New York from London. |
| B．should work in good condition since they just finish a long journey. |
| C．rest in a place with good condition. |
| D．give up long journey since it makes them tired. |
During the school year many parents take on the role of driver as they drive their children from one lesson to 
another. It can be understood that many of us want our children to have a little taste of everything, from organized sports to music, dance and more. But we overdo it, leaving our children feeling a l
ittle tired, and according to parent educator Diane Loisie, it’s their school work that suffers the most. “After school, if they’re busy in a number of sporting events, besides they need to do their homework, then the time they’ll feel sleepy is in the classroom. Your child needs free time. So if you’re filling up that after school time, then it’s during the day they’re going to be taking a break. ”
Professor Claire McDermott agrees that there’s a lot to be gained from sometimes putting those planned lessons and activities away. “Relaxing time is important for children. It’s time just
to do the things they want to do. A child
can go up to their room, or they can play around. It doesn’t look like useful time; parents certainly wouldn’t be saying ‘Wow, are they ever learning things now?’ But this relaxing time gives both the body and the brain just a wonderful chance to relax after a day. It helps a child prepare for sleep, but it also helps to understand the learning that’s gone on that day. ”
It’s hard to prevent signing our kids up for some activities and lessons. After all, many of us want our children to have a head start in life and the chance to join in great activities in the arts or sports is a part of that. However, Loisie feels that in the long run most children feel better with just a few key activities because it gives them an opportunity to master them. “When we get our children in too many activities because we want our children to experience everything, then what we’re doing is setting them up not to be good at one thing or gaining a skill. ” So choose your children’s activities wisely. It may be one of the best things you’ve ever done for your kids… and for the family driver!What is the biggest disadvantage for children to attend too many lessons after school?
| A．They can get bored easily about everything. |
| B．They might have no time to do the homework. |
| C．They might not pay much attention to learning. |
| D．They cannot easily focus on learning during the day. |
What should we think of children’s playing around aimlessly?
| A．It is simple. |
| B．It is helpful. |
| C．It is a bad habit. |
| D．It is a waste of time. |
Why should parents limit the activities our children attend?
| A．Because children have no time. |
| B．Because children cannot learn many things. |
| C．Because children do not have enough sleep. |
| D．Because children cannot focus on too many activities. |
What is the main idea of this passage?
| A．Don’t be children’s drivers after school. |
| B．Choose activities for your children wisely. |
| C．Make your children learn as much as possible. |
| D．Let children learn something from various subjects. |
Pupils are ordered not to wade into ankle-deep water unless teachers first carry out a full risk assessment and put “proper measures in place”.
Staff are expected to check rivers, ponds and the sea for currents and rocks before allowing children to dip their feet.
Guidance issued to schools warns that any “impromptu (事先无准备的) water-based activities” could pose dangers to children.
The recommendations were outlined in a document-available to all 21,000 schools in England — to help teachers organize more school trips. Advice from the DepartmentforChildren, Schools and Families is intended to cut red tape (官样文章) and give staff practical tips.
But the guidance caused argument after teachers were presented with a series of orders surrounding swimming and the use of minibuses.
It said: “Swimming and padding or otherwise entering the waters of river, canal, sea or lake should never be allowed as an impromptu activity. The pleas of young people to bathe — because it is hot weather, for example, should be resisted where bathing has not been prepared for.”
“In-water activities should take place only when a proper risk assessment has been completed and proper measures put in place to control the risks.”
Teachers are urged to check the weather, currents, weeds, rip tides, river or sea beds and breakwaters before allowing children into the water. No child should be able to swim deeper than waist height, the guidance added.
Margaret Morrissey, from campaign group Parents Outloud, said: “Wading out into the ocean is one thing but there’s nothing wrong with padding where the waves break.”
“Part of children’s learning is to walk along the water’s edge and get your feet wet. There are dangerous currents further out and you stay at the edge.”
She added: “I want to see schools and youth groups taking advantage of opportunities that learning outside the classroom can provide.”
But the Department for Children, Schools and Families said teachers had to plan activities carefully.
“We are not banning padding,” said a spokeswoman. “We have seen cases in the past where things have not been planned and assessed for the risk. Unplanned activities around water can be dangerous.”Guidance issued to schools in England gives the information that _________.
| A．school trips to oceans are forbidden in the country |
| B．school swimming pools should be surrounded with fence |
| C．school staff must plan water-based activities carefully |
| D．school children shouldn’t have a walk along river banks |
Advice from the Department for Children, Schools and Families shows us that _________.
| A．they are strongly against the guidance |
| B．they are fond of the outline of the guidance |
| C．they don’t understand the aim of the guidance |
| D．they want the guidance to become more useful |
To the guidance, Margaret Morrissey holds the opinion that _________.
| A．oceans are dangerous place for children to visit |
| B．young people should be encouraged to learn outside |
| C．children should learn padding in rough ocean alone |
| D．schools should stop students from walking along beaches |
Which of the following can be the best title for this passage?
| A．No padding on school trips, children told. |
| B．No walking along the rivers, teachers told. |
| C．No swimming after school, parents told. |
| D．No learning out of school, students told. |