Ebola is a dangerous virus that can cause people to get very sick and even die. The virus is causing the biggest problems in western Africa, where it has spread quickly. {#blank#}1{#/blank#} But it can get worse and cause life-threatening symptoms(症状), such as bleeding and trouble breathing.

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    Ebola does not spread like colds or the flu because it does not float through the air. Ebola also doesn't spread through food or water, like some other viruses. Instead, Ebola spreads when someone touches the body fluids(液体) of a sick person.

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    An outbreak is when many people are getting sick with the same illness around the same time. You may have heard of a flu outbreak, which is when lots of people get sick from the same types of flu virus. When an outbreak happens because of a virus, more people could get sick because there is a lot of that virus around.

    Where did Ebola come from?

    Scientists aren't sure how the first person gets Ebola at the start. {#blank#}4{#/blank#}Tropical animals in Africa believed to carry the virus include great apes, chimpanzees, gorillas, monkeys, fruit bats, porcupines, and forest antelopes.

    What do kids need to do about Ebola?

    Ebola is making many people sick in Africa, but no matter where you live, it's always a good idea to wash your hands well and often. {#blank#}5{#/blank#}

A. How do people catch Ebola?

B. But they think that people may pick up the virus by touching or eating infected animals.

C. Why do I need to wash my hands?

D. It's very important that infected people get treatment right away.

E. Ebola symptoms can start with fever and headache, kind of like the flu.

F. What is an outbreak?

G. Keeping hands clean can help protect you from common illnesses like colds and the flu.

    It's natural to great friends with a smile and a wave.{#blank#}1{#/blank#}But what happens if your face and body send mixed messages? Would someone be more likely to believe the look on your face or the way you hold your body?

    Scientists have recently tackled these questions. They found that when a person is looking at your face, she might not believe what she sees of your body language doesn't match the feeling that your face shows.

    {#blank#}2{#/blank#} Previously, they had found that the tone of a person's voice can be more important than the words that are spoken. For example, most people tend not to believe a person who says in a flat voice, “I'm so excited.”

    When it came to emotions conveyed by facial expressions and body language, most scientists suspected that the face was more important. To test if this was true, psychologists from the Netherlands and Boston showed people a number of pictures of isolated faces and isolated bodies(with faces blurred out )that showed anger or fear{#blank#}3{#/blank#}

    An angry face had low eyebrows and tight lips. A scared face had high eyebrow and a slightly open mouth.{#blank#}4{#/blank#}A scared body had arms forward and shoulders square, as if ready to defend.

    These results told the researchers that mixed signals can confuse people. Even when people pay attention to the face, body language subtly influences which emotion they read.

    {#blank#}5{#/blank#}And if you want to be understood, it helps to avoid sending mixed messages.

A. Studying such mixed messages is nothing new for scientists.

B. So, your body language plays a major role in telling people how you feel.

C. Scientists feel new to study the mixed message that confuses people.

D. An angry body had arms back and shoulders at an angle, as if ready to fight.

E. Body language can sometimes be misunderstood in different culture backgrounds.

F. When you do this, your face and body work together to show your friends that you're happy to see them.

G. They also showed pictures in which angry or scared faces were paired with angry or scared bodies

    We often describe spring as a time of rebirth, renewal and awakening. However, when the weather turns warm, many of us suffer from spring fever Are we actually sick when we have spring fever? Originally, yes,{#blank#}1{#/blank#} When the weather turned warm, some people developed sore throats, headaches, or stuffy noses. The definition of “spring fever” slowly changed in the early 1800s, Now people come to use the term to mean a sudden increase of romantic feelings. Elvis Presley describes this feeling in the song “Spring Fever.” “Spring fever, comes to everyone. Spring fever, it's tune for fun. There's no doubt now, love is everywhere. Get up, get out, spring is everywhere.” These days, we use “spring fever to describe a restless feeling after the long, cold days of winter. But the word “spring” is not just a season.{#blank#}2{#/blank#}

    Imagine that you are resting on the couch when suddenly you see a mouse run across the floor. You spring into action! You jump from the couch and run after the mouse! But you miss,{#blank#}3{#/blank#} Audit works! But when you tell your roommate that you caught a mouse in a trap, tears spring to her eyes. You feel bad and awfully sorry, but she really should have told you about her pet mouse Charlie! After all, your apartment doesn't allow pets.

    {#blank#}4{#/blank#} You say to her, “You can't just spring that on me! I'll need time to find another roommate!” But then you think that maybe it's for the best. Every time you see her, you feel guilty about Charlie, her pet mouse.{#blank#}5{#/blank#} She always expects you to compensate her for her loss of the mouse: she wants you to spring for lunch, spring for movie tickets, and sometimes even spring for groceries. When you spring for something, you pay for someone else.

    These expressions are really cool, aren't they? Next time, you can say to a friend, “I have spring fever. Let's leave early and go to an outdoor cafe, I'll spring for coffee.”

A. Things art conning to life in spring!

B. Your roommate turns her back on you.

C. It is also a verb that means something happening or appearing quickly.

D. Spring fever used to refer to an Actual illness.

E. Then unexpectedly, your roommate is moving out tomorrow.

F. That night you spring a trap with some cheese in it

G. Even so, she constantly annoys you.

    Do you want to be at the top of your class？Add these tips to your life and you should be on your way to being a top student!

    {#blank#}1{#/blank#} I cannot stress enough how important it is to pay attention to what your teacher is teaching you. Take part in class discussions if you have something worthwhile to add. Pay attention during class，especially during lectures.

    Taking notes is important. You don't need to write down every word your teacher says but write down what he/she writes on the board，or any special fact you think you might need for a test.{#blank#}2{#/blank#} This way it will help you learn more effectively by actually thinking about what you are writing.

    Don't skip school. You will missing out on stuff.{#blank#}3{#/blank#}However，you will have more work because you have missed lectures and in-class movies. Also，try not to be late for class. It's most likely that your teachers won't appreciate it and you will get yourself behind.

    {#blank#}4{#/blank#} If you have an "I don't care about school or this class" attitude，then teachers will be less willing to help you with problems or offer you extra credit(学分).The same goes for lazy attitude. Have a respectful attitude to the teacher and other students. Try not to laugh when other students make a mistake.

    Always ask questions.{#blank#}5{#/blank#} If you don't understand，ask someone. Read your textbook and notes，and then if that fails，seek help. Ask a teacher，friend，classmate，parent, ect. Get a tutor if you need one.

A. Be prepared.

B. Staying organized will be helpful.

C. Write in your own words.

D. It is true that you could make up the work.

E. Pay attention to everything the teacher says.

F. Keep a good attitude toward things.

G. There is no shame in needing some help.

    Imagine that you are in a remote village somewhere with no medical clinic.{#blank#}1{#/blank#}Once the doctors get to you, they examine you and take blood samples, but they won't be able to help you until they take the samples back to the hospital to find out what is wrong.{#blank#}2{#/blank#}Thanks to engineer Andy Ozcan, many people may never be in this situation. He has invented an app that turns your mobile phone into a diagnostic (诊断的) tool.

    Ozcan's invention is important because it is very accurate and easy to use. In many remote places, even if doctors have microscopes and other instruments to help them make diagnoses, there may still be other problems. Many doctors, for example, don't have enough training to correctly interpret what they see.{#blank#}3{#/blank#}With Ozcan's mobile phone app, health workers can take a special photo of a blood sample and send it to a central computer at a hospital. The computer will then automatically interpret the photo and send a diagnosis back in a few minutes.

    {#blank#}4{#/blank#}His technology only requires a mobile phone and an Internet connection. As more than four billion people already have cell phones, the cost of establishing the diagnostic system is fairly low.

By inventing a medical tool that uses existing technology—mobile phones—Ozcan has developed a medical tool that is both practical and economical. Therefore, it can be effectively almost anywhere.{#blank#}5{#/blank#}

A. As a result, they may diagnose illnesses incorrectly.

B. People are trying to reduce the cost of this new medical tool.

C. This tool has become much more popular all around the world.

D. Another reason that Ozcan's invention is important is that it is inexpensive.

E. You become very sick and must wait days until a mobile medical unit arrives to help.

F. Ozcan's simple, cost-effective tool might just save millions of lives around the world.

G. Even though you may only have a simple infection, you might die because of the delay.

Time is precious for students especially during finals. Having good skills of time management becomes so important. But how can you manage your time?

Get some sleep.

When things get rough, sleep often gets cut out of your schedule. The lab report has to be done by tomorrow morning, so... no sleep tonight, right? Wrong.{#blank#}1{#/blank#} Your brain will run slower, and you'll be super tired all the time. So even if it sounds strange, spare time to get quality sleep.

Prioritize (划分优先顺序) often.

Keep a running list of the major tasks that you're performing. Change it as often as necessary and refer to it when you feel worried about all the things you have to do.{#blank#}2{#/blank#} You can't do so many all at once.

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Although you might try hard to plan every, detail of your routine, sometimes things just happen. You might get sick or your roommate loses your keys. Set aside as much time as you can each day for emergencies. That way, you needn't deal with the unexpected in a rush.

Schedule time to relax.

Finals can be surprisingly stressful, and you may not realize how much harm they do to you until they're over. Workload can sometimes be unbearable. Schedule some free time to make you mentally recharged.{#blank#}4{#/blank#}

Ask for help when you need it.

Asking for help is pretty normal during leaning. It's rare to find a student who can make it through school life without any help.{#blank#}5{#/blank#} There are lots of places that can give you a hand at the end of a term.

A. Get on well with roommates.

B. Leave extra time, just in case.

C. Thus, don't hesitate to seek help when necessary.

D. Feeling worried may help you accomplish nothing.

E. If you feel depressed, focus on the one at the top of the list.

F. Let your brain take a break so it can go back to work efficiently.

G. Not getting enough sleep can actually cost you more time in the long run.