Many people hurt their backs when they try to lift heavy things from the floor. It is easy to hurt your back muscle(肌肉) when you try to pick up a heavy thing. However, there is a correct way to lift things from the floor. If you pick up heavy things correctly, you probably will not hurt your back.
To lift something from the floor correctly, first bend (弯曲) your knees and lower yourself. Keep your back straight. Do not bent over, from your waist (腰) keep your back and hips (臀部) and waist in a line. If you bent over, the muscles in your lower back can became hurt very easily. If you keep your back and hips straight, the muscles are stronger, because they hold up together. The other muscles can then help the lower back muscles.
As you lower yourself, try to get as close to thing as you can, put one knee on each side of the thing. Remember at all times to keep your back straight. Put your hand under the thing that is in front of you, between y our knees.
To lift the thing, you should stand up slowly. Use your leg muscles in order to stand up. In other words, lift with your legs, not with your back.
小题1:Which part of your body is more easily to be hurt when you lift heavy things?

A．The leg muscles.	B．The back muscles
C．The hips	D．The knees

小题2:Many people hurt their backs when they lift something because _______.

A．they are not strong

B．the things are very heavy

C．the way to lift the things is not correct

D．they are very heavy

小题3:The muscles are stronger if you _______.

A．keep your back, hips and waist in a line

B．bend over from your waist

C．lower yourself

D．get down on your knees

小题4:To lift heavy things, the most important of all is to _________.

A．stand up slowly

B．keep your back straight

C．bend your knees

D．put one knee on each side

小题5:What does “In other words” mean? ________

A．总而言之

B．换句话说

C．在其它话中

D．在其它单词中

If you have a bottle of water recycled(再利用) from urine(尿), would you drink it? Astronauts at the ISS may soon do so.
NASA(美国航空航天局) said it would use a high-tech machine to recycle wastewater at the ISS. The machine will recycle water for washing hands, shower water, water for brushing teeth and even urine to make drinking water. It will save millions of dollars each year.
At present, each ISS astronaut uses about 4.4 liters(升) of water every day. It costs about 24 million dollars a year to send water up to the ISS. A liter of water costs about $ 11,000.
The machine will be sent to the ISS later. NASA hopes it will recycle about 93% of all the water used on the station.
Will the water be clean? Different chemicals will be put in the wastewater. The water will be heated to 130℃ to kill bacteria(细菌). Scientists say that the recycled water is thousands of times better than the water from a city tap.
小题1:NASA will use a high-tech machine to recycle wastewater at the ISS to ______.

A．protect the ISS

B．make the astronauts work harder

C．provide better water and food for the astronauts

D．save the cost of sending water up to the ISS

小题2:At present it costs NASA about ______ dollars to transport water up to an astronaut at the ISS a day.

A．4.4 thousand	B．11 thousand
C．48.4 thousand	D．24 million

小题3:Scientists plan to get rid of bacteria in the wastewater by ______.

A．freezing	B．heating
C．shaking	D．precipitating(沉淀)

小题4:The passage mainly tells us something about ______.

A．water recycling at the ISS

B．the International Space Station

C．a high-tech machine

D．the cost of NASA

小题5:Which of the following sentences is TURE?

A．The recycled water is much better than that from a city tap.

B．The high-tech machine will recycle all the water used on the station.

C．The ISS astronauts use more water than us.

D．The high-tech machine can only recycle urine to make water.

A Brown University sleep researcher has some advice for people who run high schools: Don’t start classes so early in the morning. It may not be that the students who nod off at their desks are lazy. And it may not be that their parents have failed to enforce(确保) bedtime. Instead, it may be that biologically(生物学上)these sleepyhead(贪睡者)students aren’t used to the early hour.
　　“Maybe these kids are being asked to rise at the wrong time for their bodies,” says Mary Carskadon, a professor looking at problem of adolescent (青春期的)sleep at Brown’s School of Medicine.
　　Carskadon is trying to understand more about the effects of early school time in adolescents. And, at a more basic level, she and her team are trying to learn more about how the biological changes of adolescence affect sleep needs and patterns(方式).
　　Carskadon says her work suggests that adolescents may need more sleep than they did at childhood, no less, as commonly thought.
　　Sleep patterns change during adolescence, as any parent of an adolescent can prove. Most adolescents prefer to stay up later at night and sleep later in the morning. But it’s not just a matter of choice---their bodies are going through a change of sleep patterns.
　　All of this makes the transfer(迁移)from middle school to high school---which may start one hour earlier in the morning----all the more difficult, Carskadon says. With their increased need for sleep and their biological clocks set on the “sleep late, rise late” pattern, adolescents are up against difficulties when they try to be up by 5 or 6 a.m. for a 7:30 a.m. first bell. A short sleep on a desktop may be their body’s way of saying. “I need a timeout.”
小题1:Carskadon suggests that high schools should not start classes so early in the morning because _______.

A．it is really tough for parents to enforce bedtime

B．it is biologically difficult for students to rise early

C．students work so late at night that they can’t get up early

D．students are so lazy that they don’t like to go to school early

小题2:The underlined phrase nod off most probably means _______.

A．turn around

B．agree with others

C．fall asleep

D．refuse to work

小题3:What might be a reason for the hard transfer from middle school to high school?

A．Adolescents depend more on their parents.

B．Adolescents have to choose their sleep patterns.

C．Adolescents sleep better than they did at childhood.

D．Adolescents need more sleep than they used to.

小题4:What is the test mainly about?

A．Adolescent health care.

B．Problems in adolescent learning.

C．Adolescent sleep difficulties.

D．Changes in adolescent sleep needs and patterns.

March 5 is Lei Feng Day. Lei Feng is one of the most famous role models（榜样） in China. He is known for his warm heart and kind deeds（行为）. We should learn from him. In honor of this great person, we did lots of kind deeds on March 4. Take a look!
Xu Hanchi, 13:
I went to a square（广场）in a local university with my classmates to do cleaning. We swept off the fallen leaves and picked up rubbish. When we finished, the ground was very clean. Though no one came up to praise us, we still felt very happy. We learned that doing good things itself could make us happy.
Zhu Lingyue, 14:
My group cleaned the teachers’ office that day. When we got there, we were surprised that the office was not as clean as we expected. How could teachers work in such an untidy（不整洁的） place? We started cleaning quickly. Teachers work really hard and may not have the time to clean their offices. It’s great that we can do something to help make them less tired.
Tom Rui, 14:
We helped clean the yard in the front of a hospital, but some patients（病人） there left us a very bad impression（印象）. They were very impolite and shouted at nurses and doctors. I think nurses and doctors’ work is hard. They try their best to help us. We should give them more respect and understanding.
小题1:The three children did lots of kind deeds _________

A．on March 5

B．on March 8

C．on March 4

D．on March 3

小题2:Zhu Lingyue _______ on that day.

A．cleaned the yard	B．cleaned the teachers’s office
C．cleaned a square	D．cleaned a hospital.

小题3:Tom Rui thinks the patients in the hospital are ________

A．kind

B．polit

C．happy

D．rude

Just as in face-to-face communication, there are some basic rules of behavior(行为) that should be followed on the Internet. The basic rule is simple: treat others in the same way you would want to be treated. Imagine how you’d feel if you were in the other person’s shoes.
For anything you’re about to send: ask yourself, “ Would I say that to the person’s face?” If the answer is no, rewrite and reread. If someone in the chat room is rude to you, you needn’t to fire back. You should either ignore(不理睬) the person, or use your chat software to block their messages. Remember to respect the beliefs and opinions of others in the chat room.
Everyone was new to the network once. Offer advice when asked by newcomers, as they may not be sure what to do or how to communicate. When someone makes a mistake, be kind about it. If you do decide to tell someone about the mistake, point it out politely. At the same time, if you find you are wrong, be sure to correct yourself and apologize to those that you have offended(冒犯). You’d better not ask others questions about their age, sex and families. Unless you know the person very well, and you are both comfortable with sharing personal information, or don’t ask such questions.
小题1:The Chinese meaning of the sentence “ treat others in the same way you would want to be treated”

A．以牙还牙

B．以己度人

C．治病救人

D．殊途同归

小题2:You should point out someone’s mistake __________.

A．politely

B．rudely

C．patiently

D．seriously

小题3:If you don’t know the person very well, you’d better not to ask_______.

A．their age

B．their sex

C．their weight

D．both A and B

小题4:This passage is mainly about ____

A．how to communicate

B．sharing personal information

C．basic rules of behavior on the Internet.

D．respecting others in the chat room.

In America, parents want their children to do something they can.小题1:, they want them to use小题2:wisely（精明地）. When the children are still very young, parents will begin telling them different kinds of money. Parents also tell them  what money can小题3:.When the children  become a little小题4:, parents teach them to save  money. If the children want to buy something, they can use小题5:money. Parents will tell them what they should buy and what they shouldn’t  .
When children use their money, parents often tell them to share（分享）with小题6:Parents are glad小题7:their children share their money and help others.小题8:the children can learn to be helpful. Parents also teach their children to make a plan for小题9:money. It is good for them.
In America, people often sell some of their old things . If people buy them, they can get some money. Some children help others wash cars小题10:sell newspapers to get money . But in China, parents have different opinions. Maybe there is something good for us to learn. Do you think so ?

小题11:

A．For example B．However C．Such as D．Because

小题12:

A．things B．computers C．money D．time

小题13:

A．be used to B．is used for C．use for D．be used for

小题14:

A．big B．younger C．older D．old

小题15:

A．their own B．of their own C．his own D．themselves

小题16:

A．the others B．others C．other D．the other

小题17:

A．seeing B．to see C．looking D．to look

小题18:

A．On the way B．In this way C．In the way D．By the way

小题19:

A．spending B．costing C．taking D．paying

小题20:

A．and B．or C．but D．though

What can you do on the Internet? Many of us like to read the news, buy things and play games. Some students now have a new use for the Internet – helping them with their homework.
Tina, 14, from Shenzhen, Guangdong, often searches online for the answers to her math problems. She said sometimes she and even her parents don’t know the answers to the problems, so she has to turn to the Internet.
“I can see how other people work out these problems and learn from them,” Tina said. “It’s easy and saves time.”
But not all the students welcome this. Leo, 15, from Hangzhou, Zhejiang, thinks it may make students stop thinking.
“We should think over the problems first. Simply copying the answers won’t improve our abilities. ” he said.
In the eyes of Wang Zhaoming, a Shanghai teacher, the success of all this is down to the students. If they use the Internet properly (适当地), it could be a good tool for study, Wang said.
“Students should first think about the problems by themselves. As for the online answers, they should choose the best among different ones. The most important thing is to know the logic (逻辑) behind the answers,” he said. “Don’t be shy to ask teachers and classmates the next day if you don’t understand the answer.”
小题1:According to the passage, it’s a new use for students to ___________ on the Internet.

A．buy things

B．play games

C．help with homework

D．read news

小题2:The right order to use the Internet to help with our homework is ____________.
① Choose the best answers among different answers online;
② Search the answers on the Internet;
③ Think about the problems by ourselves;
④ Try to understand the logic behind the answer you’ve chosen.

A．①②③④

B．③②①④

C．②③①④

D．④③②①

小题3:In Leo’s opinion, searching online for the answers may _______________. 

A．make students simply copy the answers instead of thinking

B．help solve the problems between students and their parents

C．be a good tool of study if students use the Internet properly

D．improve the students’ different abilities

小题4:The best title of this passage is_____________.

A．How to use the Internet	B．Think before you search online
C．Is Internet bad or good for students	D．Computers or teachers

 
“Low *carbon” becomes the most popular words these days because more and more people pay attention to our environment. Not only China but all other    1   concentrate on the topic of “low carbon”. Low carbon life    2    a kind of lifestyle in which people do their best to use less energy. The purpose of the lifestyle is to push us to    3    the environment.
Because of the fast increase of population and human *desire, the human living environment, health and safety are    4    worse and worse. So we can say, the lifestyle is becoming the killer of the earth and human beings. Therefore, low carbon life is needed by man’s own health. So we should develop good    5    in our daily life. For example, when we go shopping, we’d better use    6    plastic bags. We should eat more    7    and less meat. As for clothing, we’d better buy the necessary clothes and not buy clothes with animal *leather. As for housing, when building a    8   , we must use green material; buy the lights that need less energy and remember to    9    the lights when not needed; put rubbish into different kinds and recycle the useful things, like bottles and paper. As for transportation, we can    10    if you go to the places near your house. For short trips, we can ride a bike instead of driving a car. Try to use public transportations. As for working, companies should    11    clerks to use e-mail, MSN and other ways instead of using paper. We use paper only when necessary. For using    12    : If you don’t use computer in a short time, you can change the computer into its “sleep”.
Besides, we should try    13    best to tell the people around us the importance of the low carbon lifestyle. And we can also ask them to    14    us to take the low carbon life, in this way, not only can we make our city better,    15    also it’s good for ourselves.
In all, it weighs greatly for all of us to put the low carbon lifestyle into practice.

小题1:	A．countries B．cities C．towns D．villages

小题2:	A．helps B．means C．lives D．thinks

小题3:	A．keep B．pollute C．protect D．make

小题4:	A．doing B．trying C．discovering D．becoming

小题5:	A．lists B．shops C．decisions D．habits

小题6:	A．more B．less C．fewer D．many

小题7:	A．tea B．vegetables C．meat D．food

小题8:	A．house B．bridge C．store D．market

小题9:	A．turn off B．turn on C．put off D．put on

小题10:

A．walk B．rush C．run D．drive

小题11:

A．make B．let C．see D．encourage

小题12:

A．machine B．light C．bed D．computer

小题13:

A．ours B．we C．our D．us

小题14:

A．stop B．tell C．join D．hear

小题15:

A．so B．but C．and D．though

The London Olympic Games are coming soon. This summer, Chinese sports fans will be able to watch the exciting games in 3-D on CCTV.
When you watch 3-D movies or TV, you have to wear a special pair of glasses. The 3-D glasses make the people and the things on the screen look like they are in the room with you.
3-D, means having three *dimensions: *width, height and *depth. 3-D technology is based on the way the human brain and eye work. Because the *pupils of a person’s eyes are about 6.5cm apart, when we look at something, each eye sees it from different *angle. Our eyes send the two pictures to our brain, and the brain puts them together. The small difference between the picture from the right eye and the picture from the left eye make us see depth.
While watching 2-D films, we don’t have to wear the special glasses. We see the pictures in two dimensions, each eye get the same information. This is because there is only one way of watching it.
So the aim of 3-D technology is to get a different picture into each eye of the person. It uses two film *projectors. One *projects a left eye picture and the other projects a right eye picture. When we are in the cinema, we can see different pictures in each eye at the same time with the help of the 3-D glasses.
While watching 3-D films, we feel that we are actually in the same environment as the things we are watching. However, some people are against watching 3-D films. One of the reasons is the 3-D glasses makes the screen of the film or TV look darker. It is bad for eyes. What’s more, people with eye problems may get headaches if they spend too much time watching 3-D movies, because their brains need to work harder to “read” the pictures.  
小题1:Paragraph 3 mainly tells us __________.

A．how we see things in 3-D	B．how we watch the Olympic Games
C．how 3-D films are made	D．where we watch 3-D films or TV

小题2:When we watch a 2-D film, each of our eyes get ________ information.

A．no

B．different

C．dark

D．the same

小题3:Which is the following is right according to the passage?

A．We don’t have to wear 3-D glasses if we watch games in 3-D on TV.

B．The 3-D technology is based on the way the human ear and eye work.

C．All the people can have fun watching 3-D movies or TV for a long time.

D．3-D glasses make us see different pictures in each eye at the same time.

小题4:Why are some people against watching 3-D films? Because ____________.

A．they make them more excited or sadder

B．3-D glasses make the screen look darker

C．3-D films make all people get headaches

D．they dislike watching the Olympic Games

March 16 is World Sleep Day. This year’s slogan is “Breathe Easily, Sleep Well”. Its aim is to celebrate the *benefits of good and healthy sleep.
Fangfang, from Liaoning, just became a high school student last September. She gets up at 5:30 a.m. every day and goes to bed at about midnight. Fangfang feels sleepy all the time. “I want to finish all my homework first,” she said.
Sleep is like food for the brain. Enough sleep helps the body and brain grow and develop. According to the National Sleep *Foundation in the US, adults need seven to nine hours of sleep every night. For students who are 10 to 17 years old, a healthy amount is about eight to nine hours every night.
But many students don’t get enough sleep because of early school start time and heavy homework. About 80 percent of middle school students don’t get enough sleep, the China Youth and Children Research Center reported. For some students, they want to sleep early, but they keep worrying about their schoolwork and can’t fall asleep quickly. For others,they may even have insomnia, and usually they have to ask the doctors for help.
These sleeping problems greatly *affect people’s life. Some doctors found out that *lack of sleep for teenagers lead to poor grades. Students without enough sleep cannot pay attention in class or do well in sports. Also, they often become anxious easily.
Luckily, with good sleep habits, it is easier to fall asleep. Some of these good habits include *avoiding drinks that make people excited late in the day, going to sleep at the same time every night, and sleeping in a comfortable place that is dark, quiet, and neither too warm nor too cold.
More tips to get a good night’s sleep:
Exercising during the day. You’d better do sports three hours before going to bed.
Don’t eat big meals before bedtime. Drink a warm glass of milk.
If you stay awake worrying about things, try making a list of things that you need to do before you go to bed.
小题1:How much sleep do students aged from 10 to 17 need every night? 

A．7 hours.

B．8-9 hours.

C．10-12 hours

D．Less than 7 hours.

小题2:What does the word “insomnia” mean in Paragraph 4?

A．失眠症.

B．好动症.

C．咽喉炎.

D．关节炎.

小题3:If teenagers don’t get enough sleep, they may _____________. 

A．do well in sports	B．grow and develop better
C．feel sleepy in class	D．do much better in studies

小题4:Which of the following is a good sleeping habit according to the passage?  

A．Do exercise at night before going to bed.

B．Going to sleep at the same time every night.

C．Going to sleep in a place where it is bright.

D．Eat big meals or drink a lot of wine at night.

小题5:What is the main idea of the passage?   

A．People should sleep well to live healthy and study better.

B．Teenagers should sleep longer on Saturdays and Sundays.

C．People should see the doctor if they don’t have enough sleep.

D．Teenagers don’t get enough sleep because of heavy homework.