C
Not many years ago, some American farmers began to complain about hawks(鹰). The hawks were killing chickens. The farmers did not know what to do. They went to the government officials and asked for help.
The officials said, “ We’ll pay you for each hawk you kill.” The farmers began to kill the hawks. Many hawks were killed, but the farmers now had another problem. The field mice were growing in number and they were eating up the farmers’ corn. Hawks eat not only chickens but also field mice. They eat more field mice than chickens. But if the farmers had known that, they would not have upset(打乱) the balance of nature. In one part of the USA, there are deer which eat a kind of wild rose. The deer are eaten by mountain lions. The number of deer, mountain lions, and wild rose does not change much if people stay away from them. If there are too many deer, mountain lions will increase rapidly in number and kill many deer. If there are too many mountain lions, there will be fewer deer and there will be more roses.
It is always necessary for us to keep the balance of nature. The government once killed almost all the mountain lions to protect the deer. Soon there were so many deer that they ate up all the wild roses. Then they began to eat the green leaves of young trees which were important to the farmers.
So the farmers protected their trees from the deer. The deer had nothing to eat, and many of them died.
The government learned a valuable lesson from nature.
44. What had happened after the hawks were killed?
A. People wouldn’t worry about their chickens.
B. The number of the field mice became too large.
C. The number of the field mice became small.
D. The field mice were eating up the farmers’ corn.
45. Why did American people have to protect their trees?
A. Because the mountain lions destroyed the trees.
B. Because there were so many deer that they began to eat the green leaves.
C. Because they wanted the trees to grow well.
D. Because the trees are more important than the deer.
46. What can we learn from the article?
A. We must keep the balance of nature.
B. We must not kill any animals.
C. we must feed the hawks with our corn to keep the balance of nature.
D. Both A and B.
We now think of chocolate as sweet, but once it was bitter.We think of it as a candy, but once it was a medicine.Today, chocolate can be a hot drink, a frozen dessert, or just a snack.Sometimes it's an ingredient(配料) in the main course of a meal.Mexicans make a hot chocolate sauce called mole and pour it over chicken.The Mexicans also eat chocolate with spices(香料) like chili peppers.
Chocolate is a product of the tropical cacao tree.The beans taste so bitter that even the monkeys say "Ugh!" and run away.Workers must first dry and then roast the beans.This removes the bitter taste.
The word "chocolate" comes from a Mayan word.The Mayas were an ancient people who once lived in Mexico.They valued the cacao tree.Some used the beans for money, while others crushed them to make a drink.
When the Spaniards came to Mexico in the sixteenth century, they started drinking cacao too. Because the drink was strong and bitter, they thought it was a medicine.No one had the idea of adding sugar.The Spaniards took some beans back to Europe and opened cafes.Wealthy people drank cacao and said it was good for the digestion.
In the 1800s, the owner of a chocolate factory in England discovered that sugar removed the bitter taste of cacao.It quickly became a cheap and popular drink.Soon afterwards, a factory made the first solid block of sweetened chocolate.Later on, another factory mixed milk and chocolate together. People liked the taste of milk chocolate even better.
Besides the chocolate candy bar, one of the most popular American snacks is the chocolate chip cookie.Favorite desserts are chocolate cream pie and, of course, an ice cream sundae with hot fudge sauce.
It was _____that discovered sugar could remove the bitter taste of cacao.
A.The workers in the chocolate factory |
B.The Spaniards |
C.The people in England |
D.The owner of a chocolate factory |
The Spaniards think that cacao was a medicine because_____
A.it was strong and bitter. |
B.it was good for digestion. |
C.it cured man's diseases. |
D.it was a kind of drink for good health. |
Which is the right time order of the events regarding chocolate?
a.Chocolate became a cheap and popular drink in England.
b.A factory made the first solid block of sweetened chocolate.
c.The Spaniards started drinking cacao.
d.It was found that sugar removed the bitter taste of cacao.
e.A factory mixed milk and chocolate together.
A.a-b-c-d-e | B.c-d-e-b-a |
C.c-d-a-b-e | D.c-d-b-e-a |
It can be inferred from the passage that _____.
A.chocolate can be a hot drink, a frozen dessert, or a candy bar |
B.Mexicans like chocolate very much |
C.chocolate is a product of the cacao tree |
D.people liked the taste of chocolate mixed with milk |
How clean are the nation’s homes?
According to a survey by CIF, there’s room for improvement all over Britain.
Love or hate it — cleaning your home is one job you simply can’t ignore(忽视). But that’s not to say everyone spends the same amount of time or effort on making their places spotless. A new survey by CIF— experts on making tough cleaning jobs easier—— shows that when it comes to washing windows or cleaning the oven(烤箱),where you live in the UK it may show how much effort you put into the task.
BATHROOM
25% of men have never cleaned the toilet — but those in Wales are the worst. Nearly four in 10 Welsh men said they never cleaned anywhere in the house. Hate cleaning the shower head? You’re not alone — a quarter of a million Brits say the same. 20% of Scots regard window-cleaning as their most hated job.
KITCHEN
36% of people in the south-east say cleaning the cooker is their hated task. 68% of those in the north-east spend more than six hours a week cleaning their homes — especially the kitchen — in sharp contrast to the 49% of Welsh and West Country folk, who put their hands up to cleaning for under an hour.
BEDROOM
18% believe cleaning starts here: that’s the percentage of women who clean wearing their dressing gowns. 51% of women in the north-west may be staying in bed and giving their husband a cuddle(拥抱)—as a thank-you for helping them clean. In other places, there are far fewer helpful men.
LIVING ROOM
32% of women in the north-east turn up the stereo to help make the dusting more fun. Almost six in 10 women agree, however, that cleaning is seriously energetic exercise.
SHIFT THE DIRT WITH CIF
It’s no secret that the right cleaning products will cut cleaning time and effort in half— and no one knows that better than How Clean Is Your house? Presenters Aggie Mackenzie and Kim Woodburn. For solutions(解决办法)to all your cleaning needs, here are some of CIF’s top tips:
·Stop a lot of build-up on your shower head—give it a quick squirt(喷洒)with CIF bathroom spray once a week.
·Stainless steel(不锈钢)tools seem to need endless cleaning. The CIF Wild Qrchid Qxy-Gel-it lifts dirt easily and leaves the kitchen smelling fresh and clean.
·Cooking outside? CIF cream will get your barbecue (烤架)spotlessly clean, ready for those long, lazy summer evenings. Perfect!
The main purpose of this passage is to ______.
A.tell us the results of a certain survey |
B.advertise a certain product |
C.advise men to do more cleaning housework |
D.tell us which is the hardest job at home |
It can be concluded from the survey that people in different parts of Britain______.
A.have different views on house cleaning |
B.spend different amounts of time and effort on house cleaning |
C.like to do different kinds of housework |
D.have different ways to do housework |
According to the survey,______ spend the most time cleaning their homes.
A.the Welsh | B.people in the north-west |
C.people in the south-east | D.people in the north-east |
CIF in the passage probably refers to ______.
A.an organization doing research on housework |
B.a group of experts who give advice on doing housework |
C.a company providing advice and products on cleaning |
D.a company providing cleaning services |
阅读理解E
Do you have a sore throat, a running nose and a headache? Do you keep coughing and sneezing? If you do, the chances are that you have a cold or perhaps flu---but which one? Although both colds and flu are caused by viruses, they are very different illnesses.
Colds, which usually last about a week, affect the nose most. They commonly cause a running nose and sneezing. Sometimes, they cause a headache, a cough and slightly aching muscles.
Flu is a much more serious illness and is caused by different groups of viruses. People with flu usually get all the symptoms(症状) described above. However, they also get a high fever, a dry cough and much worse aching. Fever is one of the characteristic symptoms of the flu for all ages. The symptoms also last much longer. Sometimes they don’t disappear for at least two weeks.
Flu can be a deadly disease. The elderly(年长的), who are weaker and less healthy than most younger people, can die from flu. This is one reason why old people are advised to have a flu injection(预防针) before the start of winter when flu is most common. This injection is inexpensive and definitely(明显地)worth it.
If you have a cold or flu, you must always deal with used tissues(手巾纸) carefully. Don’t leave dirty tissues on your desk or on the floor. Someone else has to pick these up and viruses could be passed on. And finally, remember to cover your nose and mouth when you sneeze! You don’t want to see the small drops of liquids blown(喷) out of your nose and mouth when you sneeze, do you? Disgusting(令人作呕), eh? Now you can understand why it’s a good idea to cover your nose and mouth when you sneeze!
In paragraph 4, we learn that ________.
A.flu injection can cause death |
B.most old people die from flu |
C.flu can kill old people easily |
D.flu is most common in summer |
Dealing with used tissues properly(正确地) is important because ________.
A.it helps keep your classroom tidy |
B.it prevents the spread of colds and flu |
C.people hate picking up dirty tissues |
D.picking up lots of tissues is hard work |
Which of the following statements is TRUE according to the passage?
A.Both colds and flu last the same time. |
B.Both colds and flu can be prevented by injection. |
C.Both colds and flu are caused by the same viruses. |
D.Both colds and flu have an aching symptom. |
Which is probably the best title for the passage?
A.Colds and Flu |
B.The Different Symptoms of a Cold and Flu |
C.Prevention Is Better Than Cure |
D.Cover Your Nose and Mouth When Sneezing |
Each year, road accidents kill a million people and injure millions more . The economic costs are greatest for developing countries . Earlier this year , the United Nations called for a campaign to improve road safety .
One way to avoid accidents is better driving . Another is better roads and bridges . Engineers in the Unites States have designed ten new concrete mixtures that they think could make bridges last longer .
Professor Paul Tikalsky leads the experiments by a team at Pennsylvania State University . He says bridges made of concrete now last about twenty-five to thirty-five years . But he says the new mixtures might extend that to seventy –five or even one-hundred years .
Concrete is made of stone , sand , water and cement(水泥). The materials in the cement hold the concrete together . Ancient Romans built with concrete . Yet strengthened concrete bridges did not appear until the late 1800s . People keep looking for new ways to improve concrete . Professor Tikalsky says it is one of the most complex of all chemical systems .
The new mixtures designed by his team contain industrial waste products . He says these make the concrete better able to resist damage from water and salt over time . One of the products is fly ash . This is released into the air as pollution when coal is burned .
Professor Tikalsky says particles (颗粒)of fly ash are almost exactly the same size and chemical structure as Portland cement . This is the most costly material in concrete . So using fly ash to replace some of it would save money .
The federal government is paying for part of the research . Engineers anywhere can use the technology . Professor Tikalsky says some of the ideas have already been put to use in China , the Philippines and other countries .
Why did the United Nations launch the campaign ?
A.Because the United Nations wanted to reduce road accidents and economic costs |
B.Because two million people were killed in the accidents . |
C.Because engineers wanted to design ten new concrete mixtures . |
D.Because the United Nations made bridges of the new mixtures which could last for about 20 to 35 |
years .
What does the underlined word “ this ” in the sixth paragraph refer to ?
A.Fly ash | B.Portland cement | C.Sand | D.Chemical |
Which of the following statements is TRUE ?
A.Ten new concrete bridges have already been built in the United States . |
B.A new concrete bridge could last 50 more years than an ordinary concrete one . |
C.People didn’t know how to build with cement until the late 1800s . |
D.Water and salt won’t do any damage to bridges over time . |
What does the passage mainly tell us ?
A.The causes of road accidents . | B.The advantages of fly ash |
C.The measures of avoiding road accidents | D.Latest information about long-life concrete bridges |
The best way of learning a language is using it. The best way of learning English is talking in English as much as possible. Sometimes you’ll get your words mixed up (混合) and people will not understand you. Sometimes people will say things too quickly and you can’t understand them. But if you keep your sense of humor (幽默感) you can always have a good laugh at the mistakes you make. Don’t be unhappy if people seem to be laughing at your mistakes. It’s better for people to laugh at your mistakes than to be angry with you, because they don’t understand what you are saying. The most important thing for learning English is: “Don’t be afraid of making mistakes because everyone makes mistakes.”
The writer thinks that the best way for you to learn a language is ____.
A.writing | B.using it | C.listening | D.learning grammar |
What should you do in learning English?
A.Be careful not to make any mistake. | B.Write as quickly as you can. |
C.Speak English as much as you can. | D.Laugh more often. |
When people laugh at your mistakes, you should _____.
A.not care | B.be happy | C.feel worried | D.be unhappy |
The story tells us_______.
A.only foolish people make mistakes |
B.few people make mistakes |
C.people never make mistakes |
D.there is no one who does not make mistakes |
The writer of the text has a _______ attitude towards people’s mistakes while using the language.
A.agreeable | B.negative(否定的) | C.neutral (中立的) | D.humorous |
The film stars out as a normal day at a typical American high school. Friends chat in the dining room and boys play football. But there's big surprise when the movie ends with two students going crazy in the school-shooting and killing people.
This is Elephant. It stars real school kids. American director Gus Van Sant had no ready-made lines. The student actors made up their own dialogue, with Van Sant asking them to base their characters on their own lives.
Although it may not sound very high quality, the film won the Palme d'Or (金棕奖) for Best Film and the award for Best Director at the Cannes film festival.
The film is based on the shootings at a high school in the US, where two boys killed 13 people and then themselves in 1999.
The title of the movie refers to the old expression about a problem that's as hard to ignore as an elephant in the house.
The film takes a close look at a few hours in the lives of the victims and the killers. It shows how high school is a different experience for everyone---fun and friendly, or hard and lonely.
In many ways, the two boys, who carry out the shooting, act like ordinary kids. They joke around with one boy's mother as she serves them cakes and play the piano.
But there're hints of the anger they feel inside. One of the boys is bullied (欺负) at school. The other plays violent video games. But Van Sant isn't blaming their killings on either bullying or violent games. In fact, the film doesn't offer any reason for why school violence happens.
"I didn't want to explain anything. It's up to the audience to draw its own conclusions," said the 51-year-old director.
The lines of the film were ________.
A.given by the director |
B.created by student actors |
C.thought out by the director during the acting |
D.carefully designed by professional people |
The film doesn't tell why school shootings happen________.
A.so as to leave room for the audience to think and judge |
B.because life itself is the problem maker |
C.because the mental problems of students are hard to explain |
D.but there are some hints of the reasons |
The film is named Elephant because ________.
A.an elephant is always gentle and never causes trouble |
B.an elephant is a symbol of big problems in American schools |
C.elephant is used to suggest that the school crime is a big problem |
D.the two boys liked elephants when alive |
What’s the passage mainly about?
A.It shows American school life. |
B.It introduces the film Elephant. |
C.It tells people to be careful while in peace. |
D.It reports a school killing in a US school. |
As you grow older,you’ll be faced with some challenging decisions--like whether to cut class or try cigarettes.Making decisions on your own is hard enough,but when other people get involved and try to pressure you one way or another it can be even harder.People who are your age,like your classmates,are called peers.When they try to influence how you act,to get you to do something,it’s called peer pressure.
Peers can have a positive influence on each other.Maybe another student in your science class taught you an easy way to remember the planets in the solar system.Maybe you got others excited about your new favorite book,and now everyone’s reading it.These are examples of how peers positively influence each other.
Sometimes peers influence each other in negative ways.For example,a few kids in school might try to get you to cut class with them; your soccer friend might try to convince you to be mean to another player and never pass him the ball.
It is tough to be the only one who says “no” to peer pressure,but you can do it.Paying attention to your own feelings and beliefs about what is right and wrong can help you know the right thing to do.
You’ve probably had a parent or teacher advising you to “choose your friends wisely.” Peer pressure is a big reason why they say this.If you choose friends who don’t cut class,smoke cigarettes,or lie to their parents,then you probably won’t do these things either,even if other kids do.
If you continue to face peer pressure and you’re finding it difficult to handle,talk to someone you trust.Don’t feel guilty if you’ve made a mistake or two.
For whom is the passage most probably written?
A.Students |
B.Parents |
C.Teachers |
D.Doctors |
In the last three paragraphs,the author mainly_____.
A.explains why friendship is so important |
B.gives advice on how to deal with peer pressure |
C.discusses how peers influence us |
D.shows how to make more good friends |
Which of following may help handle peer pressure?
A.Spending more time with classmates. |
B.Taking up more relaxing hobbies. |
C.Choosing friends with no bad habits. |
D.Helping others who are in trouble. |
What is the topic of the passage?
A.Friendship |
B.Making decisions |
C.Self-confidence |
D.Peer pressure |
阅读下列短文,选出最佳选项。 Three-year-old Teddy Lasry was sleeping in his cowboy outfit (套装) yesterday at his family’s Fifth Ave.apartment when he shot up in bed screaming.A 3-foot-long black-and-white snake twisted around his left arm and had just bitten his little finger.
“The babysitter (a person taking care of children while their parents are away for a short time) was frightened to death,” said Teddy’s father, David Lasry, who, along with his wife, Evelyn, was at work when the snake appeared about 4:00 pm.
The horrified babysitter called 911 and the building’s doorman.The doorman and two cable TV workers helped take the snake off the boy’s arm and put it in a garbage bag.Police rushed Teddy to Mount Sinai Medical Center, where he spent two hours attached to a heart monitor as a precaution in case the snake was poisonous.It wasn’t.Experts at the snakebite treatment center at Jacobi Medical Center in the Bronx, where policemen took the snake, found out it was a non-poisonous California king snake.
But how did it end up in Teddy’s bed?
A little detective work determined that the snake had escaped two weeks ago from its cage in the apartment of a doctor whose family lives four floors below the Lasrys.The apologetic owner said his son’s pet snake likely traveled up the water pipes and into his neighbor’s apartment.“It’s a very gentle, very harmless snake,” he said.“It’s handled by our family all the time.”
David Lasry believed the pet was simply hungry after two weeks of wandering.Evelyn said her son seems to have overcome his fright by thinking of himself as a hero cowboy as he rode in the back of the police car to the hospital.
“I told Teddy he’s a pretty snake, a nice pet snake who got out of his cage,” Evelyn said.“But he asked, ‘Why did he bite my finger, Mamma?’ And I said, ‘Because he saw that you are a big boy, Teddy, in your cowboy outfit and he got scared.’”
What did the babysitter do after Teddy was bitten by a snake?
A.She ran out of the apartment. |
B.She called the TV company. |
C.She made an emergency call. |
D.She took the snake off Teddy’s arm. |
We can learn from the passage that the snake _______.
A.was poisonous |
B.was kept in a cage by its owner |
C.was deserted by its owner |
D.escaped to the apartment |
From the passage, we know _______.
A.Teddy needed a heart machine to stay alive for two hours |
B.Teddy was awake when the snake arrived |
C.Teddy’s mother was at home when the snake turned up |
D.the snake was used to being touched |
Teddy probably believed he was attacked because _______.
A.his parents weren’t at home |
B.he was asleep the snake |
C.was scared of him |
D.the snake was hungry |
B
Populations and Land (1987) |
||||
|
Area in |
Percent |
Population |
Percent |
|
Square miles |
Cultivated |
In millions |
forested |
United States |
3615104 |
20 |
243.8 |
28 |
Canada |
3851792 |
5 |
25.9 |
33 |
United Kingdom |
94525 |
29 |
56.8 |
9 |
Australia |
2967896 |
6 |
16.2 |
14 |
India |
1269340 |
51 |
800.3 |
21 |
China |
3705390 |
11 |
1062.0 |
14 |
Which two countries are the closest to each other in area?
A.The US and Canada | B.The US and China |
C.China and Canada | D.India and China |
_____ has the highest population density(密度), and _____ has the second highest.
A.China, India | B.India, China |
C.India, the US | D.China, the US |
Which two countries have the closest percentage of cultivated land?
A.The US and the United Kingdom. |
B.The US and China |
C.Australia and Canada. |
D.Australia and China |
There are _____ countries whose cultivated land percentage is larger than the forest percentage.
A.2 | B.3 | C.4 | D.5 |
For those who make journeys across the world, the speed of travel today has turned the countries into a series of villages. Distances between them appear no greater to a modern traveler than those which once faced men as they walked from village to village. Jet plane fly people from one end of the earth to the other, allowing them a freedom of movement undreamt of a hundred years ago.
Yet some people wonder if the revolution in travel has gone too far. A price has been paid, they say, for the conquest (征服) of time and distance. Travel is something to be enjoyed, not endured . The boat offers leisure and time enough to appreciate the ever-changing sights and sounds of a journey. A journey by train also has a special charm about it. Lakes and forests and wild, open plains sweeping past your carriage window create a grand view in which time and distance mean nothing. On board a plane, however, there is just the blank blue of the sky filling the narrow window of the airplane. The soft lighting, in-flight films and gentle music make up the only world you know, and the hours progress slowly.
Then there is the time spent being “processed” at a modern airport. People are conveyed like robots along walkways; baggage is weighed, tickets produced, examined and produced yet again before the passengers move again to another waiting area. Journeys by rail and sea take longer, yes, but the hours devoted to being “processed” at departure and arrival in airports are luckily absent. No wonder, then, that the modern high-speed trains are winning back passengers from the airlines.
Man, however, is now a world traveler and can not turn his back on the airplane. The working lives of too many people depend upon it; whole new industries have been built around its design and operation. The holiday maker, too, with limited time to spend, patiently endures the busy airports and limited space of the flight to gain those extra hours and even days, relaxing in the sun. Speed controls people’s lives; time saved, in work or play, is the important thing—or so we are told. Perhaps those first horsemen, riding free across the wild, open plains, were enjoying a better world than the one we know today. They could travel at will, and the clock was not their master.
What does the writer try to express in Paragraph1?
A.Travel by plane has speeded up the growth of villages. |
B.The speed of modern travel has made distances relatively short. |
C.The freedom of movement has helped people realize their dreams. |
D.Man has been fond of travelling rather than staying in one place. |
How does the writer support the underlined statement in Paragraph2?
A.By giving instructions. |
B.By analyzing cause and effect. |
C.By following the order of time. |
D.By giving examples. |
According to Paragraph 3, passengers are turning back to modern high-speed trains because______.
A.they pay less for the tickets |
B.they feel safer during the travel |
C.they can enjoy higher speed of travel |
D.they don’t have to be “processed” |
What is the main idea of the passage?
A.Air travel benefits people and industries. |
B.Train Travel has some advantages over air travel. |
C.Great changes have taken place in modern travel. |
D.The high speed of air travel is gained at a cost. |
When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived on a farm and, in the winter especially, we were quite cut off from the outside world. As soon as I left school, I packed my bags and moved to the capital. However, I soon discovered that city life has its problems too.
One big disadvantage is money---it costs so much to go out, not to mention basics like food and housing. Another disadvantage is pollution. I suffer from asthma(哮喘), and at times the air is so bad that I am afraid to go outside. Then there is the problem of travelling round. Although I have a car, I seldom use it because of the traffic jams. One choice is to go by bicycle, but that can be quite dangerous.
Of course there are advantages. First, there is so much to do in the city, whatever your tastes in culture or entertainment. Besides, there are wonderful jobs and greater chances of moving to a more important job or position. Finally, if you like shopping, the variety of goods is very surprising---and, what is more, shops are often only a short walk away.
Is life better then, in the city? Perhaps it is, when you are in your teens(十几岁) or twenties. However, as you get older, and especially if you have small children, the peace of the countryside may seem preferable. I certainly hope to move back there soon.
What was the writer always thinking about when he was a child?
A.Staying on the farm |
B.Moving to the countryside |
C.Leaving home for the city |
D.Running away from the school |
Which of the following is true about the writer?
A.He is very old now. |
B.He is in good health. |
C.He prefers driving a car. |
D.He lives in the city now. |
In the passage, the writer tries to _______.
A.express his opinions about way of life |
B.describe his life in the countryside |
C.show an interest in the outside world |
D.persuade the reader to live in the city |
How is the passage mainly developed?
A.By inferring | B.By comparing |
C.By listing examples | D.By giving explanations |
A friend is better than fortune. A friend is worse than poison in some cases.
The two sentences above have opposite meanings and seem to be unreasonable, but they can be explained as follows: the first refers to all good friends who drive us towards good while the second all bad ones who lead us into bad ways.
My ideal friend is of course a good friend whose goodness is shown below — he has no bad habits, such as smoking and drinking. He lives in frugality (节俭). He studies hard so as not to waste his golden time. At home he honors his parents and loves his brothers; at school he respects his teachers and shares the feelings of his classmates. He treats those truly who are true to him. In a word, he has all the good characteristics that I don’t have. I can follow him as a model. With his help I can be free from all difficulties.
Indeed, if I have such a person as my friend, I shall never fear difficulty and I shall never know the existence of the word “failure”.
This passage tells us ____.
A.how to make friends with others |
B.how to help friends |
C.what kind of person the writer’s friend is |
D.what kind of person we should make friends with |
According to the writer, an ideal friend refers to _______.
A.a friend without bad habits |
B.a famous man |
C.a perfect man |
D.a respectable man |
From the passage we can learn that ________.
A.the writer and his ideal friend have a lot to learn from each other |
B.the writer has a lot to learn from his ideal friend |
C.the writer’s ideal friend has a lot to learn from him |
D.the writer has only a little to learn from his ideal friend |
From the second paragraph, we can infer the writer is sure that _______.
A.friendship means a great deal to him |
B.nothing can be done without friends |
C.he who does not smoke or drink must be a good friend |
D.good friends should always help each other |
There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do .
In the ancient world , as is today ,most boys played with some kinds of toys and most girls with another .In societies where social roles are rigidly determined, boys pattern their play after the activities of their fathers and girls are being prepared, even in play , to step into the roles and responsibilities of the adult world .
What is remarkable about the history of toys is not so much how they changed over the centuries but how much they have remained the same . The changes have been mostly in terms of craftsmanship ,mechanics, and technology . It is the universality of toys with regard to their development in all parts of the world and their persistence to the present that is amazing .In Egypt ,America ,China ,Japan and among the Arctic (北极的)people, generally the same kinds of toys appeared. Variations depended on local customs and way of life because toys imitate their surrounding. Nearly every civilization had dolls, little weapons, toy soldiers, tiny animals and vehicles.
Because toys can be generally regarded as a kind of art form, they have not been subject to technological leaps that characterize inventions for adult use .The progress from the wheel to the cart to the automobile is a direct line of ways up. The progress from a rattle (拔浪鼓) used by a baby in 3000BCto one used by an infant today , however , is not characterized by inventiveness. Each rattle is the product of the artistic tastes of the times and subject to the limitations of available materials.
The reason why the toys most boys play with are different from those that girls play with is that .
A.their social roles are rigidly determined |
B.they like challenging activities |
C.most boys would like to follow their fathers’ professions |
D.boys like to play with their fathers while girls with their mothers. |
One aspect of “the universality of toys ”lies in the fact that .
A.the basic characteristics of toys are the same all over the world |
B.technological advances have greatly improved the durability of toys |
C.the exploration of the universe has led to the creation of new kinds of toys |
D.the improvement of craftsmanship in making toys depends on the efforts of universities |
Which of the following is the author’s view on the historical development of toys?
A.Toys are playing an increasingly important role in shaping a child’s character. |
B.The toy industry has witnessed great leaps in technology in recent years. |
C.The craftsmanship in toy-making has remained essentially unchanged. |
D.Toys have remained basically the same all through the centuries. |
Regarded as a kind of art form, toys .
A.reflect the pace of social progress |
B.are not characterized by technological progress |
C.follow a direct line of ascent |
D.also appeal greatly to adults |
Here’s an amazing way to get a hard-boiled egg into a bottle, even though the mouth of the boiled is smaller than the egg! What’s more, you don’t even need to touch the egg to get it to go in!
For this experiment you will need:
·a hard-boiled egg
·a glass bottle with a mouth just slightly smaller than the egg (a fruit-drink bottle works well)
·a 8-cm by 8-cm(3-inch by 3-inch)piece of newspaper
·a match
Remove the shell from the egg. Set the egg on the mouth of the bottle to see that the egg does not fit through the mouth.
Light the paper. Remove the egg from the mouth of the bottle and drop the burning paper into the bottle. Before the fire goes out, set the egg back onto the mouth of the bottle. Within a few seconds the egg will squeeze(挤) through the mouth and into the bottle.
As it entered the bottle, the egg may have broken into pieces. This happens when the diameter(直径) of the egg is more than about 0.5 cm(about 3/16 inch) larger than the diameter of the bottle’s opening.
Why does the egg slide into the bottle, even though no one is pushing it? Because the pressure of the air is pushing it. Before the burning paper is put into the bottle, the pressure of the air inside is the same as outside. The burning paper, however, heats the air inside. This causes the air inside to expand. When the egg is placed on top of the bottle, it seals(封住) the bottle. When the fire goes out, the air inside cools. As it cools, the air contracts(紧缩), and the pressure of the air inside becomes less than the pressure outside. Then, the higher outside pressure pushes the egg into the bottle!
The best title of this passage can be .
A.An interesting story | B.The pressure of the air |
C.Egg in a bottle | D.Egg, bottle and match |
What don’t you need in this experiment?
A.Eggs. | B.Water. | C.Bottles. | D.Paper. |
Why will the egg break into pieces while entering the bottle?
A.Because of the burning paper. |
B.Because the diameter of the egg is too larger than that of the bottles opening. |
C.Because it is cool inside the bottle. |
D.Because the pressure of the air inside is larger. |
What is the most important to get the egg into a bottle?
A.A match. | B.A fruit-drink bottle. | C.The pressure of the air. | D.The burning paper. |