Most earthquakes occur within the upper 15 miles of the earth’s surface, but earthquakes can and do occur at all depths to about 460 miles. Their number decreases as the depth increases. At about 460 miles one earthquake occurs only every few years. Near the surface earthquakes may run as high as 100 in a month, but the yearly average does not vary much.
The extent of the disaster in an earthquake depends on many factors. If you carefully build a toy house with an erect set (坚立架), it will still stand no matter how much you shake the table. But if you build a toy house with a pack of cards, a slight shake of the table will make it fall. An earthquake in Agadir was not strong, but it completely destroyed the city. Many stronger earthquakes have done comparatively little damage. If a building is well constructed and built on solid ground, it will resist an earthquake. Most deaths in earthquakes have been due to faulty building construction or poor building sites. A third and very serious factor is panic. When people rush out into narrow streets, more deaths will result.
There is one type of earthquake disaster that little can be done about. This is the disaster caused by seismic (地震的) sea waves, or tsunamis (海啸). These are often called tidal waves, but the name is incorrect. They had nothing to do with tides. In certain areas, earthquakes take place beneath the sea. These submarine earthquakes sometimes give rise to seismic sea waves. The waves are not noticeable out at sea because of their long wave length. But when they roll into harbors, they pile up into walls of water 6 to 60 feet high. The Japanese call them “tsunamis” meaning “harbor waves”, because they reach a sizable (相当大的) height only in harbors.
Tsunamis travel fairly slowly, at speeds up to 500 miles an hour. An earthquake warning system is in use to warn all shores likely to be reached by the waves. But this only enables people to leave the threatened shores for higher ground: There is no way to stop the oncoming wave. Which of the following can NOT be concluded from the passage?
| A．The number of earthquakes is closely related to the depth. |
| B．Roughly the same number of earthquakes occur each year. |
| C．Earthquakes are impossible at depths over 460 miles. |
| D．Earthquakes are most likely to occur near the surface. |
The destruction of Agadir is an example of .
| A．faulty building construction |
| B．an earthquake’s strength |
| C．widespread panic in earthquakes |
| D．ineffective instruments |
According to the passage, the waves caused by submarine earthquakes are not noticeable out at sea because of .
| A．their high speed |
| B．the wide shores |
| C．their silent movements |
| D．their long wave length |
The significance of the slow speed of tsunamis is that people may .
| A．help reduce fear |
| B．find ways to stop them |
| C．be warned early enough |
| D．develop warning systems |
According to the passage, the number of factors that may determine the extent of the disaster in an earthquake is .
| A．two | B．five | C．four | D．three |
When was the last time your family sat down together to have a dinner?
The speed at which we live today no longer allows for slow eating habits. Most people work long hours. There is lots of fast food and eating out is now on the increase. Often, food is eaten in front of the television in silence, or a child eats alone in front of the computer.
When I was a child, every evening around the same time, one of the children would be asked to set the table, and then we'd go and wash our hands: before the meal. This was the time of day when we would talk about our day at school. But now things have changed a lot.
A family environment plays an important role for children in learning to communicate with others and understanding table manners, such as waiting for others to finish before leaving the table and not speaking with a mouth full of food. Parents’ likes and dislikes of a certain food will also influence a child's own likes and dislikes. Studies have shown that children who often eat with their families have better results at school than children who eat with their families less than twice a week.
Regular meal times give children the chance to discuss their problems with family members. They can also learn to respect others around the table. Talking to your children over dinner is the best way of having their-trust. Children learn good eating habits from their parents at a very young age. Family meals are important. Prepare them for your children.Some families eat less together because __________.
| A．most children live in a school |
| B．people are busy with their work |
| C．table manners change a lot |
| D．food in the restaurant is better |
Children who often eat with their families _________.
| A．turn out to do better in their studies |
| B．prefer to share food with others |
| C．show concerns about families |
| D．are interested in cooking |
Which word can best describe the writer's attitude towards eating together with families?
| A．Supportive. | B．Doubtful. | C．Worried. | D．Grateful. |
Which would be the best title of the passage?
| A．Table manners of a family | B．The importance of meals |
| C．Why should the family eat together? | D．How to choose food for your family? |
Welcome to the Ambassador Hotel. To make your stay as enjoyable as possible, we hope you can make full use of our facilities（设备）.
Dining Room
Breakfast is served in the dining room from 8 a.m. to 9:30 a.m. The room staff will bring a breakfast tray to your room at any time after 7 a.m. Please fill out a card and hang it outside your door when you go to bed.
Lunch: 12:00 a.m. to 2:30 p.m.
Dinner: 7:30 p.m. to 9:00 p.m.
Room Service
This operates 24 hours a day; phone the Reception Desk, and your message will be passed on to the room staff.
Telephones
To make a phone call, dial 0 for Reception and ask to be connected. We apologize for delays in putting calls through when the staffs are very busy. There are also public telephone boxes near the Reception Desk. Early calls should be booked with Reception.
Laundry
We have a laundry in the hotel, and will wash, iron and return your clothes within 24 hours. Ask the room staff to collect them.
Bar
The hotel bar is open from 12 a.m. to 2 p.m. and 7 p.m. to 1 a.m.You would see this notice ___________.
| A．in a hotel bar |
| B．in a hotel dining room |
| C．in a bedroom of a large hotel |
| D．in the entrance of a small family hotel |
What time can you have breakfast in the dinning room?
| A．6:50 a.m. | B．7:00 a.m. | C．7:30 a.m. | D．8:30 a.m. |
What should you do when you come back to the hotel to make an important call and see a lot of people around the Reception Desk?
| A．Go to your room and phone from there. |
| B．Ask at the Reception Desk. |
| C．Go to the public telephone boxes. |
| D．Go out again and look for a private phone. |
What should you do if you want to have your trousers washed?
| A．Ask the room staff to collect them to the laundry. |
| B．Go to the hotel bar. |
| C．Hang a message outside your door. |
| D．Ask the room staff to clean them for you. |
Every year in late spring at Wild Friends, the wildlife health center, workers receive baby animals, including songbirds and rabbits. This is the busiest time when workers care for and raise all the little ones before sending them back into the wild.
There are many reasons for these little animals' coming to the center. First of all, street cats or dogs catch, injure or take away little birds from their nests. Sometimes people catch baby animals and keep them at home, giving them food that they are not used to. It would make them sick. Most people don't realize that it's against law to get live animals out of their nests.
As for songbirds, people often find them on the ground in their yards, thinking they have no other choice but to leave them on the ground to die. This is because many people wrongly believe that once a bird is touched by a person, its mother will not accept this child bird. But that's not true.
If a little bird falls out of the nest, you should check whether it is injured. If not, you should put the bird back in the nest. If the bird is injured, call your local wildlife center quickly.
As for the progress of protecting wild animals, people at Wild Friends devote all their energy to this work. Over the last weeks, they have been able to send many of the birds and rabbits that came here earlier this spring back to nature.Which is the busiest season for workers at Wild Friends?
| A．Spring | B．Summer. | C．Autumn. | D．Winter. |
Which of the following will probably injure young birds?
| A．Giving them food they don't like. | B．Letting them play with children. |
| C．Leaving them on the ground. | D．Bringing them to the center. |
If a young healthy bird is lying on the ground, you should ________.
| A．wait for its mother | B．help it go back home |
| C．touch it with your hands | D．call workers at Wild Friends |
Life on Mars could become a reality and it could happen in your lifetime.
A welcoming planet
Scientists say Earth’s neighbor Mars, a bright red planet about half Earth’s size, is the most likely to support human life. Mars even has frozen water on its surface.
Since the late 1990s, NASA has been exploring Mars using remote-controlled vehicles（装置）. Most recently Curiosity, a car-size vehicle, traveled through space on an unpiloted spacecraft(航天器) and landed on Mars in August 2012. Directed by NASA scientists , the vehicles move on the surface, taking pictures , collecting and analyzing soil, and looking for signs of life.
But what about human explorers? Plans are already in the works to send astronauts to Mars as soon as the mid-2030s.
_____________________________________
But before you start packing your bags, let’s consider the challenges. For starters, Mars is far away. Just getting there could take up to 10 months.
Scientists already know that time away from Earth’s gravity harms the human body. Bones and muscles get weaker. The body produces less blood. What damage would months and months of living in space do?
And then there is the matter of water, oxygen, food and fuel. Scientists will have to find solutions to these problems, or the first humans on Mars won’t survive very long in their new home.
Tiny Dangers
There’s another tinier risk. It’s so tiny that you can’t even see it: germs.
Some scientists believe that our germs could pollute the whole planet of Mars. Potentially killing Martian life before we have the chance to discover it. Worse, there is a small but terrifying chance that any microscopic life already there might be harmful to us .
Worse still, if any of those Martian germs(火星细菌) were brought back to Earth, the result could be disastrous. Animals, plants, and people could be wiped out.
Worth the $$$?
A more practical concern is the cost. The price could approach $ 1 trillion(万亿). How can we justify spending that much when so many problems—poverty, disease—could use the cash here on Earth?Which of the following is TRUE according to the “A welcoming planet” part?
| A．Mars is a little bigger than Earth. |
| B．There are flowing rivers on Mars. |
| C．People haven’t been to Mars so far. |
| D．Scientists have discovered signs of life on Mars. |
Which of the following can best fill in the blank in the passage?
| A．Living in space. | B．Limited resources. |
| C．Extreme conditions. | D．Interesting challenges. |
By “Tiny dangers” the author means ________________.
| A．there is no serious danger |
| B．people won’t be in any danger |
| C．it’s difficult for people to realize the danger |
| D．the danger may be caused by very small things |
Which may cause the biggest danger?
| A．Martian germs may be different from those on Earth. |
| B．Martian germs may be brought back to Earth. |
| C．People may carry germs to Mars. |
| D．There may be germs on Mars. |
Which section of a newspaper is the passage most probably taken from?
| A．People | B．History | C．Science | D．Business |
President Barack Obama rode a bicycle at the White House Science Fair on April 22. But it wasn’t an ordinary bike. As he pedaled, the President stayed in place, while the energy from his pedaling powered a water filtration (过滤) system. He was testing an invention created by a team of 14 students from Northeast High School, in Oakland Park, Florida.
Payton Karr, 16, and Kiona Elliot, 18, attended the fair as representatives of the project.“We were hoping President Obama would ride the bike, but we didn’t actually expect him to,” Payton told TFK. “ It really meant a lot.” Kiona agreed. “It was pretty awesome to see the invention, which was invented by a group of 14 high school students and one teacher, along with the help of community members, got the interest of the leader of our nation,” she said.
The project was an idea that came about after one of the Northeast students, Kalie Hoke, visited Haiti after the terrible 2010 earthquake and saw how difficult it was to find clean water. The students invented a portable(便携的), bicycle-powered emergency water filtration system, which can provide 20-30 people with drinking water in a 15-hour period. The teens hope their invention will one day be used by relief organizations like the Red Cross. “ They can take it to places after natural disasters so that water can be clean for the people there,” said Payton.
Payton and Kiona were among the 100 students from more than 40 states invited to the third annual White House Science Fair, in Washington, D.C., which is also attended by leaders in science and education. President Obama started the event in 2010 to stimulate students interested in STEM (Science, Technology, Engineering, Maths).“Well, if you’re a young person and you produce the best experiment or design, you ought to be recognized for that achievement,” Obama said when he first announced the fair.
President Obama praised the projects during a speech to attendees after the fair. “The science fair projects of today could become the products and businesses of tomorrow,” he said. “If you’re inventing things in the third grade, what are you going to do by the time you get to college?”What is special about the bicycle President Obama rode?
| A．It can move very fast. |
| B．It is extremely beautiful. |
| C．It is used to make water clean. |
| D．It is made of eco-friendly materials. |
The representatives of the bicycle-powered water filtration system_________.
| A．were both community members |
| B．graduated from a famous university |
| C．finished the project with the help of their parents |
| D．were surprised that their invention interested Obama |
The bicycle-powered water filtration system was designed ________________.
| A．at the request of the Red Cross |
| B．for city families to get pure water |
| C．during the terrible 2010 earthquake in Haiti |
| D．to provide people in disaster areas with clean water |
The underlined word “stimulate” in Paragraph 4 can be replaced by _________.
| A．help | B．inspire | C．change | D．entertain |
We can know from the last sentence in the passage that President Obama _____.
| A．wanted the youth to have big dreams |
| B．encouraged the youth to go to college |
| C．worried the young inventors would do nothing in college |
| D．believed the young inventors would have a promising future |