You are sitting on the desk. A teacher is writing on the blackboard. Kids are yelling in the playground outside. A book falls off the desk next to you. Suddenly, the teacher hands you a pop quiz.

Don't panic! {#blank#}1{#/blank#} You're in a “virtual（虚拟的）classroom”. Everything you see and hear is coming to you through a computer-operated display that you're wearing on your head like a pair of very big glasses. Wearing this kind of virtual-reality equipment, you can find yourself sitting in a classroom, touring a famous museum, wandering across a strange landscape, flying into space, or playing with a cartoon character. {#blank#}2{#/blank#} Virtual-reality equipment that delivers images and sounds directly to your eyes and ears makes these fake worlds seem lifelike.

Unlike the classroom, the technology is real. It's a type of technology that uses computer programs to imitate real world situation.{#blank#}3{#/blank#} Movie directors and video game producers have been using computers for years to create ever more realistic special effects. Some companies are now building three-dimensional（三维）fantasy worlds in which players, linked by computer networks, appear to meet and go on explorations together.

    {#blank#}4{#/blank#} They see virtual reality technology as a useful tool for learning more about why people act as they do. It could help psychologists deter identify and come up with solutions for behaviors problems, for example.

“We've spent the last 100 years looking for certain laws in how people interact with the real world,” says psychologist Albert. “ {#blank#}5{#/blank#} This is psychologist's dream.”

How to Make Friends

    Friendship is a very important human relationship and everyone needs good friends. Good friendship has many benefits. It offers companionship, improves self-worth and promotes (促进) good health. There are times in our lives such as when we have recently moved into a new town, or changed our jobs or schools. Such changes often leave us without a friend. {#blank#}1{#/blank#} But for many of us the process is difficult and requires courage. Below are some helpful suggestions on how to make and keep friends.

● Associate with (与……交往) others.

    The first step to making friends is associating with other people. You can go to public places to meet new people. Besides, you will need to make yourself known by becoming an active member of such places.

● Start a conversation.

    Starting a conversation is the second most important step in making new friends. {#blank#}2{#/blank#} You can always start the conversation. Being able to make small talk is a very useful skill in relating with other people.

●{#blank#}3{#/blank#}

    Choosing friends with common interests is important in building friendship as these interests would always bring you and your friend together. Hanging out (闲逛) will always be a pleasant experience.

● Let it grow.

    It is a good thing to stay in touch. However, try not to press your new friend with calls, messages or visits as this would likely wear him or her out and finally you may lose your friend.{#blank#}4{#/blank#} The best friendships are the ones that grow naturally.

● Enjoy your friendship.

    The best way to enjoy your friendship is to allow your friends to be themselves. {#blank#}5{#/blank#} Try not to change them from who they are to what you want them to be. Become the kind of friend you will want your friend to be to you.

A. Do things together.

B. Be cheerful.

C. Making new friends comes easy for some people.

D. So you will need to give your friend time to respond to you.

E. Do not wait to be spoken to.

F. For a friendship to develop you need to stay in touch.

G. Try not to find fault with your friends.

    Your children are watching you.{#blank#}1{#/blank#} According to the Health Program，developing healthy habits is an important part for your children. And when it comes to developing healthy habits, parents influence their children more than anyone else.

    {#blank#}2{#/blank#} What happens during those early years can influence children for the rest of their lives. This includes some eating and exercise habits. Children are very careful, even at a young age. Children watch what others do carefully and imitate the behaviors of those closest to them. As parents, you should do the following:{#blank#}3{#/blank#} If you do that, your children are more likely to be enthusiastic about developing theirs.

    Let your children see you taking care of your own physical health by eating fruits and vegetables. Talk to them about healthy habits in appropriate terms and at a proper time.{#blank#}4{#/blank#}

{#blank#}5{#/blank#} Computers，televisions and other forms of technology are a major part of life in the 21st century. Unfortunately, as the use of technology in the home increases, so does the time spent watching TV or playing on the computer. So as parents, you should also arrange the time for your children wisely.

A. Take part in physical activities and exercise regularly.

B. Don't get rid of technology, but use it wisely.

C. Be enthusiastic about developing healthy habits of your own.

D. Your actions arc speaking to them louder than your words will.

F. Children prefer to imitate their parents rather than listen to them.

F. This can be helpful to teach your children to form good eating habits.

G. It's easy for the children to form their healthy habits when they arc young.

    Do you ever draw? Most of us don't. The reason we usually leave drawing to the artists is that we're not very good at it. Who wants to do anything they're bad at? {#blank#}1{#/blank#}. Studies have found drawing has many benefits, artist or not. Here are just a few reasons for picking up a pen or pencil of any kind.

    It pushes you to be patient. We're used to things happening fast these days. Drawing is not fast. {#blank#}2{#/blank#} That's OK, and as something comes together over time, you'll be reminded of the value of patience. Drawing is an object lesson that not everything good comes quickly, which is an easy thing to forget.

    {#blank#}3{#/blank#} A few of my drawings are really kind of great. Í can look at them with pride. But plenty of my little drawings ate nonsense or unfinished. It doesn't matter. I still have the experience of drawing and the benefits that brings. Even if you're not naturally "good" at drawing, you'll get better over time if you practice. {#blank#}4{#/blank#} Your drawing doesn't have to mean anything or do anything useful, Sometimes you will even fail. No big deal.

    It makes memories stick, I draw in order to capture (捕获) moments from my life. I'm not great at drawing, but that's not the point. Sometimes I draw the view from the window of my hotel room-whether it's a great view or not. Remember, the idea is to capture the moment, not create a masterpiece. Other times I draw from my dinner table. {#blank#}5{#/blank#}

    Imagine an area 34 times the size of Manhattan. Now imagine it covered ankle-deep in plastic waste—a total of about 19 billion pounds of garbage. {#blank#}1{#/blank#}.

    "We're being overwhelmed(淹没) by our waste," said Jenna Jambeck, an environmental engineer who led the 2015 study that determined this astonishing number. {#blank#}2{#/blank#}, unless something is done to stop the tide of garbage.

    Plastic—a widely-used material—has in many ways been a benefit to humans but it has also caused a growing problem. Today, plastics are the No.1 type of garbage found in the sea. Ocean Conservancy, a nonprofit that organizes an annual coastal cleanup event worldwide, said plastic waste makes up around 85 percent of the garbage collected from beaches and oceans.

    Ocean Conservancy says plastics are believed to threaten(威胁)at least 600 different wildlife species(物种). {#blank#}3{#/blank#}; a growing body of evidence suggests humans are consuming plastics through the seafood we eat. A research suggests some plastics could be poisonous to humans, and could potentially increase the risk of health problems.

    {#blank#}4{#/blank#}. At the Economist World Ocean Summit this week, ten nations announced to reduce plastic sea liter as part of UN Environment's CleanSeas campaign. {#blank#}5{#/blank#}Corporations also have a role, as do individuals. We can start by thinking twice before using single-use plastic products—and when we do use them, we should take care to properly throw them off or recycle.

A. The following is what we should do

B. And it's not just wildlife that's threatened

C. And this figure is likely to double by 2025

D. But it's not just countries that need to do their part

E. By 2050, that figure is expected to rise to 1000 pieces

F. That's how much plastic waste ends up in our oceans every year

G. All of us have an important role to play in dealing with the problems

    Earthquakes are among the most destructive (破坏性的)natural disasters. It can strike without warning. The earthquake safety tips below will increase your chances of surviving an earthquake.

    If you are indoors, stay there. Quickly move to a safe location in the room such as under a strong desk or a strong table. {#blank#}1{#/blank#}You can also get to a corner formed by two walls with your arms over your head. Avoid taking cover near windows, large mirrors, or hanging objects.

    {#blank#}2{#/blank#} Don't take shelter under a tree, street lights, electric poles or tall buildings. Run to open spaces and move away from the nearby buildings to avoid anything falling on you. Remember that most of the people who die in earthquakes are killed by falling buildings, broken glass and flying objects.

    If you are driving, slow down smoothly and stop on the side of the road. {#blank#}3{#/blank#}You should also avoid stopping on or under bridges. Stay in your car.

    If you are in the event of getting trapped in ruins during an earthquake, don't panic. Instead, cover your mouth with a piece of clothing. Use your cellphone to call for help if possible. Don't shout. Shouting can cause you to breathe in dust. {#blank#}4{#/blank#}

    Be prepared for aftershocks. They can happen in the first hours after the earthquake. {#blank#}5{#/blank#}Therefore, if you are not in a safe place after the first shock, you should move quickly but carefully to a safer place.

A. Try to move about or kick up dust.

B. This can protect you from falling objects.

C. If you are outdoors, move to the nearby buildings.

D. However, sometimes they even happen months later.

E. Avoid stopping under power lines, trees and large signs.

F. If you happen to be outside during an earthquake, move to an open area.

G. Try to gain the attention of the rescuers by tapping on a nearby wall or pipe.