Sharks are among the oldest animals on Earth. There are hundreds of kinds of sharks. Most are about two meters long. The dogfish shark, however, is less than twenty centimeters in length. A shark has an extremely good sense of smell. It can find small amounts of substances in water, such as blood, body liquids and chemicals produced by animals. {#blank#}1{#/blank#} Sharks eat fish, other sharks, and plants that live in the ocean.

    Sharks grow slowly. About forty percent of all sharks lay eggs. {#blank#}2{#/blank#} Some sharks carry their young inside their bodies as humans do. Some sharks are not able to reproduce until they are twenty years old．Most reproduce only every two years. And they give birth to fewer than ten young sharks. For this reason, over-fishing of sharks is of special danger to the future of the animal.

    Sharks are important for the world's oceans. They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too great. {#blank#}3{#/blank#} 

    People hunt sharks for sport, food, medicine and their skin. Experts say the international market for some kinds of sharks has increased because many parts of a shark are valuable. Collectors pay thousands of dollars for the jaws of a shark. {#blank#}4{#/blank#} The skin of a shark can be used like leather.  In Asia, people enjoy a kind of soup made from shark fins. Experts say a fisherman can earn a lot of money for even one kilogram of shark fins. Sharks are among the oldest animals on Earth, but some sharks are in danger of disappearing from Earth. {#blank#}5{#/blank#} 

A. Shark liver oil is a popular source of Vitamin A.

B. This protects the plants and other forms of life that exist in the oceans.

C. Sharks are valuable to us and we can make full use of them.

D. These powerful senses help sharks find their food.

E. If too many sharks in one area are killed, that group of sharks may never return to normal population levels.

F. This is a threat to other forms of life in the ocean.

G. The others give birth to live young.

    People lie all the time, but depending on how skilled they are, it can be difficult to determine when someone is lying to you. Do you know how to recognize the signs that someone is lying to you? Some of the signs are obvious while others are more subliminal(难以察觉的), but there are ways to catch someone in a lie, you just need to know what they are. {#blank#}1{#/blank#}

1） Liars make false eye contact.

    A person who is lying to you won't make eye contact with you or they make too much eye contact. If a person is lying they may feel you are watching him and he will look down at the floor or away from your eyes. Some people try to stare you in the face deliberately. {#blank#}2{#/blank#}

2）Liars avoid using contractions(缩略形式)

    The liar will say “I did NOT notice that.” instead of “I didn't notice that.”{#blank#}3{#/blank#} Usually it ends up making the story a lot less believable.

3）Unnatural Body Language.

    Liars often feel uneasy, turn away from the person to whom they are speaking, blink(眨眼) rapidly, smile less and have pitch changes in their tone of voice. They may cross their arms which is a sign of being “closed” or trying not to reveal too much information. {#blank#}4{#/blank#} They could touch parts of their face, an ear or a nose or play with keys or another item that they have in their hand.

4）Liars provide additional information without being asked for it

    {#blank#}5{#/blank#}The result is the more complicated the story is, the less believable it will be. You will have the feeling that nothing could be further from the truth.

A. This is an attempt by the liar to be absolutely clear what they mean.

B. Here are some easy ways to recognize liars and catch lies.

C. Sometimes people look unnatural when they are lying

D. They will get angry if you doubt their story

E. They seem to think that by telling their story in detail, you will find it more believable.

F. They try to change the subject or move the conversation in a different direction

G. In this way they feel like making eye contact will make what they are saying more believable.

    Eyesight plays avery important role in our daily life. Every waking moment, the eyes are working to see the world around us. Over forty percent of Americans worry about losing eyesight, but it's easy to include steps into our daily life to ensure healthy eyes. Here are five suggestions for a lifetime of healthy eyesight：

    •Schedule yearly exams.{#blank#}1{#/blank#}Experts advise parents to bring babies 6 to 12 months of age to the doctor for a careful check. The good news is that millions of children now can have yearly eye exams and following treatment, including eyeglasses.

    •Protect against UV rays(紫外线)．Long­term stay in the sun creates risk to your eyes. No matter what the season is, it's extremely important to wear sunglasses.{#blank#}2{#/blank#}

    •Give your eyes a break. Two­thirds of Americans spend up to seven hours a day using computers or other digital products.{#blank#}3{#/blank#} Experts recommend that people practice the 20/20/20 rule: every 20 minutes, take a 20­second break and look at something 20 feet away.

    •{#blank#}4{#/blank#}As part of a healthy diet, eat more fruits and vegetables each day. Vitamins(维生素) C and E help protect eyesight and promote eye health.

    •Practice safe wear and care of contact lenses(隐形眼镜)．Many Americans use contact lenses to improve their eyesight. While some follow the medical guidance for wearing contact lenses, many are breaking the rules and putting their eyesight at risk.{#blank#}5{#/blank#} Otherwise, you may have problems such as red eyes, pain in the eyes, or a more serious condition.

A．Eat your greens.

B．Eye care should begin early in life.

C．They can properly protect your eyes.

D．Stay in good shape by taking more Vitamins.

E．Parents usually don't care about their own eyesight.

F．Always follow the doctor's advice for appropriate wear.

G．This frequent eye activity increases the risk for eye tiredness.

    How to Have a Successful Teenage Life

    Everyone wants to succeed in their life, don't they? Even as a teenager, you can achieve success in your life, it really isn't that hard.{#blank#}1{#/blank#}

    Do well in school. No matter how boring it is now, education will help you be a productive member in society. Try your best for excellence in school: listen to the teachers, do your homework, study, and get good grades. Doing so will help you get into a better university, which will enable you to have a bright future.{#blank#}2{#/blank#}

    Do good in your community(社区). Volunteering can not only improve your community's status, but could make you happier. Studies show that people who volunteer are less likely to develop depression(抑郁) than people who don't.{#blank#}3{#/blank#}For example, if you love animals, volunteer at an animal shelter. If you love helping the environment, plant trees or pick up litter. When you help others, it will make you feel better about yourself.

    {#blank#}4{#/blank#}Remember, they're there to help you be the best that you can be. Respect them and value their opinions, even if they annoy you sometimes.{#blank#}5{#/blank#}You don't get to choose your teachers or your family, but you still have to put up with them. Learn how to deal with people now, because when you're an adult, you don't get to choose your boss or your co-workers, so learn how to respect them now.

A. Here are some important points that you may find helpful

B. Be nice to your parents and teachers

C. School sets you up on the right track

D. Find chances to do volunteer work that interests you

E. Keep in mind that they do the things they do because they care about you

F. Live life to the fullest

G. It will help you pass time and develop your personality

    Are you new to experiencing relationships? Well, let me give you some advice on having a healthy and possibly long-term relationship.

    {#blank#}1{#/blank#} Do not hide things from them; do not lie. Don't be afraid to say things that aren't very flattering about yourself. Getting them to trust you is the most important element in any relationship. If there's no trust, there's nothing there. So please be honest and they'll learn to open up to you.

    Make sure you give them respect. Now respect isn't just simply treating her or him nicely. There's a lot more to it. You have to learn to adjust to their liking. {#blank#}2{#/blank#} Don't just think about yourself; think about what your partner needs out of it as well.

    {#blank#}3{#/blank#} Always be willing to help them and give them honesty and positivity at the same time. Make them feel you are someone they can really count on. This is an important step in a relationship.

    Make sure you have a good sense of humor with them. Laughter is the key to happiness.

    Laugh a lot with them, and joke with them. Laughter may seem silly, but it's the secret to a lot in life. It will keep the sparks alive. {#blank#}4{#/blank#}

    Make sure the communication is good. This goes along with trust, but always communicate how you feel, even if it's something that upsets you. Instead of screaming, talk to them. {#blank#}5{#/blank#} It's important to communicate this to them, not to keep it bottled up.

A. If they did something that made you unhappy, tell them about it in a respectful manner.

B. Basically, learn to study your partners' moods, wants and needs.

C. Don't start to neglect them and make them feel unwanted.

D. Make sure you are helpful to your partner.

E. Be an honest person with them.

F. Laughter keeps the relationship strong and lasting.

G. Show them your personality.

    Britons are well known for the amount of tea that they drink. The average person in the UK consumes around 1.9 kg of tea annually. That's around 876 cups of tea. Tea is drunk by all sections of society. {#blank#}1{#/blank#}The fast majority of tea is grown in India and China. So, how did it become an important part of British culture?

    {#blank#}2{#/blank#}At this time, British ships were exploring the world and came across the drink in China. It was not long before green tea was available to buy. However, this was only available to the richer sections of society.

    At the beginning of the 1700s，the amount of tea arriving in Britain increased gradually. Black tea arrived at this time. {#blank#}3{#/blank#}They soon discovered that it makes really well with a little milk and sugar, giving the drink a special British characteristic.

    In the 1800s Tea was still a product enjoyed only by people with money. {#blank#}4{#/blank#}This involves drinking tea with a snack around 4 p.m. to avoid feeling hungry between lunch and dinner. It is a tradition that is still going today, but has become less popular in recent times.

In the late 1800s, the price of tea decreased sharply as more tea began to arrive on ships from India and China. It was no longer a drink just for rich people. Tearooms—shops where you could buy and drink tea —started to appear across the country. {#blank#}5{#/blank#}At the start of the 20th century, Britons began to make tea in their homes whenever they felt like it. Kettles became essential in every kitchen.

A. At this time, they begin to have afternoon tea.

B. People in lower classes could not afford it.

C. Let's have a look at its history.

D. People enjoy drinking tea and socializing in these places.

E. But tea does not grow in Britain.

F. Tea arrived in London in the 1600s.

G. At first, people drank this tea exactly as it was in China.