Maybe it is true that we do not know what we have got until we lose it, but it is also true that we do not know what we have been missing until it arrives．
It takes an hour to like someone, and a day to love someone, but it takes a lifetime to forget someone．Giving someone all your love is never an assurance that they will love you back．Do not expect love in return; but if it does not, be content it has grown in yours．Do not rely on one’s appearance; it can trick you．Do not rely on wealth; even that fades away．Rely on someone who makes you smile, because it takes only a smile to make a dark day seem bright．
There are moments in life when you miss someone so much that you just want to pick them from your dreams and hug them．Dream what you want to dream; go where you want to go; be what you want to be, because you have only one life and one chance to do all the things you want to do．
The brightest future will always be based on a forgotten past．You cannot go on well in life until you let your past failures and heartaches go off．May you have enough happiness to make you sweet, enough trails to make you strong, enough sorrow to keep you human, enough hope to make you happy．The happiest of people do not necessarily have the best of everything; they just make the most of everything that comes along their way．Happiness waits for those who cry, those appreciate the importance of people who have touched their lives．Always put yourself in others’ shoes．If you feel that it hurts you, it probably hurts the other person, too．
When you were born, you were crying and everyone around you was smiling．Live your life so that when you die, you are the one who is smiling and everyone around you is crying．In this passage, the writer wants to tell us ______．
| A．where to go with other persons |
| B．how to treat our life |
| C．how to get on well with other persons |
| D．what to do in our life |
Which of the following statements is true according to the passage?
| A．If it takes you a short time to love someone, you will easily forget the person． |
| B．If you give someone your love, you are sure to receive love in return． |
| C．It is wise not to rely on anybody because you are likely to be deceived． |
| D．We often don’t know what we have lost until it comes someday． |
If you put yourself in another person’s position, ______．
| A．you should depend on your imagination |
| B．you should put on other people’s shoes |
| C．you shouldn’t do what will hurt other people |
| D．you should believe in other people |
In the last paragraph the writer is actually telling us that a person in the world should be one who ______．
| A．has made a lot of money for himself before he dies |
| B．can live happily and forget the past |
| C．does good for other people and is respected and loved by them |
| D．can accept the suggestions made by others |
If you get into the forest with your friends, stay with them always. If you don’t, you may get lost. If you really get lost, this is what you should do. Sit down and stay where you are. Don’t try to find your friends—let them find you by staying in one place.
There is another way to help your friends or other nearby people to find you. Give them a signal (信号) by shouting or whistling (吹口哨) three times. Any signal given three times is a call for help.
Keep up shouting or whistling always three times together. When people hear you, they will know that you are not just making noise for fun. They will let you know that they have heard your signal. They give you two shouts, two whistles, or two gun-shots (枪声). When someone gives you a signal, it is an answer to a call for help.
If you don’t think that you will get help before night comes, try to make a little house---cover up to the holes with branches (树枝) with lots of leaves. Make yourself a soft bed with leaves and grass.
What should you do if you get hungry or need drinking water? You would have to leave your little house to look for a river. Don’t just walk away. Pick off small branches and drop them as you walk so that you can find your way back. The most important thing to do when you are lost is—stay in one place.If you are lost in the forest, you should _______.
| A．walk around the forest and shout so that your friends could hear you |
| B．try to find your friends as soon as possible |
| C．stay where you are and give signals three times |
| D．try to get out of the forest and shout for help |
If you want to let people believe that you are not just making noise for fun, you should _______.
| A．tell people that you are lost |
| B．shout or whistle three times |
| C．keep up shouting or whistling |
| D．shout at the top of your voice |
When you hear two shouts, or whistles, or gunshots, __________.
| A．it is an answer to your call for help |
| B．you can whistle three times |
| C．you should shout more loudly |
| D．you should try to run to them |
When you want to leave your place to get drinking water, you should ________.
| A．just go to the river |
| B．find some glasses or bottles before you go |
| C．make a fire so that you can have some tea |
| D．leave marks so that you can find your way back |
Teenagers are often a difficult group. With all those hormones（荷尔蒙） flooding their bodies, they can be moody, unpredictable, and tend to make uncertain choices. But however confusing their teenage years are, kids can still be generally happy, depending on their lifestyle choices. According to a new research by British scientists, teens who don’t smoke, drink only moderately or not at all, and who don’t eat much junk food are likely to be happier than other teens.
The study looked at 40,000 British families and came up with some interesting findings. For example, kids who never drank alcohol were up to six times more likely to report higher levels of happiness than kids who drank. And teens who smoked were five times less likely to rate high on happiness charts compared to kids who don’t smoke. Same goes for diet and physical activity. The more fruits and vegetables kids eat, and the more hours they spend playing sports, the happier they are.
Now, of course this doesn’t mean that not smoking or drinking, and playing sports guarantees happiness. It could be that kids who have happy character tend to be more active and less addicted to drinking or smoking. And it could equally be the case that kids who are unhappy are more related to drinking and smoking and eating junk food.
Other studies have shown that exercise is a proven way to treat anxiety and depression. Future studies may support the idea that other healthful behaviors, including refraining(克制) from smoking, drinking, and eating too much junk, can avoid sadness and increase happiness, too.What can we learn from the text?
| A．Not smoking or drinking guarantees happiness. |
| B．Teens with flooding hormones can not be happy. |
| C．Playing sports can decrease teen’s unhappiness. |
| D．Unhappiness can certainly result in smoking and drinking. |
Which of the following might help teens quit anxiety?
| A．Smoking and drinking. |
| B．Taking exercise. |
| C．Eating junk food. |
| D．Going on a diet. |
What did your school smell like? Was it noisy or peaceful? It might not seem important, but a growing body of research suggests that smells and sounds can have an impact on learning, performance and creativity．
Bridget Shield has been conducting studies and advising people on the effects of all sorts of noises, such as traffic and sirens, as well as noise made by the children themselves． "Everything points to a harmful impact of the noise on children’s performance, in numeracy, in literacy, and in spelling,” says Shield．
Shield says the sound of “babble” －the chatter of other children, is particularly distracting in the classroom．。People are very distracted by speech-particularly if it is understandable, but you’re not involved in it．” This phenomenon is also known as the irrelevant speech effect, she says, adding that “it’s a very common finding in open-plan offices as well．’’
In a series of studies published last year, Ravi Mehta found that people were more creative when the background noises were played at a medium level than when volume was low． Loud background noise, however, damaged their creativity． Ravi Mehta suggests there maybe some benefit to playing music or other sounds in an art class or other situations where creativity is the key．
Many teachers all over the world already play music to students in class． Many are inspired by the belief that hearing music can boost IQ in their tasks, the so-called Mozart effect． While the evidence actually suggests it’s a guess to say classical music boosts brainpower, researchers do think pleasant sounds before a task can sometimes lift your mood and help you perform well, says Ravi Mehta," If you like the music or you like the sound-even listening to a Stephen King novel-then you did better． It didn’t matter about the music,“ he says．
However, it’s worth considering that music is not always helpful while you’re trying to work． Trying to perform a task which involves serial recall - for instance, doing mental mathematics-will be distracted by sounds with audio variation, says Ravi Mehta． Songs with lyrics, on the other hand, are more likely to interfere（干扰）with tasks that involve languages-such as reading comprehension．
This isn’t the only sense being related to affecting learning．The second paragraph implies that _________.
| A．general noise also has a harmful effect． |
| B．students are sensitive to noise． |
| C．some children need special sounds to do tasks． |
| D．children aren't affected by their own noise． |
The irrelevant speech effect refers to the fact that _________.
| A．you don’t understand what others are talking |
| B．you are interrupted by the chatting of others |
| C．you are unwilling to chat with other people |
| D．you find what others are talking irrelevant to you |
Everyone has done experiments in high school laboratories, but have you ever thought about designing a satellite to explore space?
On Nov. 19, a team of students from Thomas Jefferson High School for Science and Technology in the US awed peers and even scientists by successfully launching a satellite.
The first satellite designed and built by high school students was sent up into space along with a record-setting. 28 other small ones on a rocket were sent from a NASA center in Virginia, CNN reported. It took the students seven years to build.
The students call their tiny satellite TJ3Sat, which is named after their school. It is just 10x10x12 centimeters and weighs only 0.89 kilograms, according to Orbital Sciences, a company which developed the rocket and supported the students’ project. It can be controlled with a smartphone.
Like most satellites, TJ3Sat can send and receive data. The small spacecraft is equipped with a voice synthesizer (合成器), which can switch text to voice and transmit those sounds back to Earth over radio waves, said Orbital officials. In this case, anyone can give it a try via the project’s website (school website) by submitting (提交) a text. The texts that get approved will be sent to the satellite, changed to voice and then broadcast back to Earth via radio waves.
“I can say ‘Go Colonials’ on our ground station and when it is on the other side of the world, in India, someone can hear ‘Go Colonials’over the radio,” the team explains on the website.
The satellite will stay in space for at least three months.
School principal Evan Glazer told The Washington Post that the project started in 2006 as an activity in the spare time. Later it became a research project for a select group of seniors.
At a time when American students are busy with SATs, the launch of the satellite shows what diligent teenagers can achieve when allowed to pursue their own curiosities, Glazer said.
“It used to be that kids growing up wanted to be an astronaut,” Andrew Petro, program executive (主管) for small spacecraft technology at NASA, said in a statement. “I think we might be seeing kids saying what they want to do is build a spacecraft. The idea here is that they really can do that.”Which of the following statements about TJ3Sat is TRUE according to the article?
| A．It took a group of students about a decade to build the satellite. |
| B．Besides TJ3Sat, 28 other small satellites were built by the students. |
| C．TJ3Sat can receive text messages that the students send into space, which can be changed to voice messages and broadcast back to Earth. |
| D．TJ3Sat is expected to stay in orbit for the next year, sending out messages together with information about its position in space. |
According to the article, the launch of the satellite _______.
| A．is evidence of the advance of spacecraft technology |
| B．proves that hard-working teenagers can achieve a lot |
| C．shows the importance of extracurricular activities at school |
| D．has inspired many people to take an interest in space travel |
You may have seen a talking parrot on a TV show, in a movie, or even in someone’s home. The parrot has learned to copy sounds that people make. Birds are not the only animals that can copy the noises they hear. Dolphins, bats, and some apes also copy sounds. Now we can add elephants to this list of copycats.
Dr. Joyce Poole is a zoologist. She studies the sounds of elephants. While she was in Kenya, she would hear strange noises made by Mlaika after sunset. Mlaika was a 10-year-old African elephant.
Mlaika lived near a highway. Dr. Poole says, “I could not tell the difference between Mlaika’s call and the distant truck noise.” She and other scientists studied Mlaika’s sounds. It turned out that Mlaika was copying the sounds of the trucks driving by. Why would Mlaika copy trucks that she heard going by on the highway? Animals that are able to copy sounds may enjoy practicing new sounds. When they are kept outside of their natural environment, they may copy unusual sounds. That may be why an elephant would copy the sound of a truck.
“Mlaika was not the only copycat elephant,” Dr. Poole says. Calimero is a 23-year-old male African elephant. He spent 18 years with two female Asian elephants. Asian elephants make chirping sounds (sounds made by birds) to talk with one another. African elephants usually do not make chirping sounds. But Calimero now does. He is copying his Asian elephant friends. Dr. Poole says that elephants need to form bonds with their family and friends. She says, “They make sounds to communicate with each other. When they are separated, they use sounds to keep in contact.”
Parrots, dolphins, humans, and elephants show that being a copycat is one way that animals and people make new friends and keep old ones.According to the passage, what does Mlaika copy?
| A．The sound of people. | B．The sound of trucks. |
| C．The sound of Calimero. | D．The sound of birds. |
From paragraph 4, we can know________.
| A．how long it takes for an elephant to learn a new sound |
| B．why the African elephant can make chirping sounds |
| C．why the Asian elephants make noises after sunset |
| D．how Asian and African elephants are alike |
According to the passage, why do some animals like to be copycats?
| A．To keep in touch with nature. |
| B．To please people and other animals. |
| C．To make new friends and keep old ones. |
| D．To avoid the danger from the outside world. |