A new report says plastics are responsible for $13 billion in damage to the oceans and the undersea environment. The findings were announced recently at a United Nations conference．{#blank#}1{#/blank#}.

    Plastic thrown away carelessly makes its way into rivers and other waterways.{#blank#}2{#/blank#}. After a while, it collects in the sea. And plastic never goes away. Plastic is not biodegradable—destroyed by bacteria or natural processes. Instead, it just breaks up into smaller pieces over time. The oceans contain a lot of chemicals and other pollutants(污染物).{#blank#}3{#/blank#}.That means harmful material may get into our food supply.

    {#blank#}4{#/blank#}. Human beings cause pollution and they can take steps to stop it. They can use fewer single use product containers and throw plastics away correctly. Plastic recycling programs also works—where old bottles and other plastics are collected, broken down and used to make new products. We could reuse bottles in our households many times if we wish to, rather than end it after the first use. We could, when we get rid of that plastic, recycle it and reuse it, which replaces the need for raw materials.

    The report also calls on companies to improve methods for using plastics.{#blank#}5{#/blank#}. And it calls for information about the way plastic is thrown out or removed from use. By putting a new value on plastic, industry has a special reason to clean up the environment.

    But all of the companies must join to deal with the problem.

A. Then, fish may eat the plastics.

B. But people can make a big difference.

C. Plastics should be gathered together and reused.

D. It is convenient to use plastic bags in everyday life.

E. It asks for them to better measure and control plastic use.

F. The plastic eventually reaches coastal areas and ocean waters.

G. The report tells about harm to sea life and what might be done to improve the situation.

    Curiosity is an important characteristic of a genius. I don't think you can find an intellectual giant who is not a curious person. Thomas Edison, Leonardo da Vinci, Albert Einstein, Richard Feynman, they are all curious characters. Richard Feynman was especially known for his adventures which came from his curiosity.{#blank#}1{#/blank#} Here are four reasons:

    It makes your mind active and strong.

    {#blank#}2{#/blank#}Their minds are always active. Since the mind is like a muscle which becomes stronger through continual exercise, the mental exercise caused by curiosity makes your mind stronger and stronger.

    It makes your mind observant of new ideas.

    When you are curious about something, your mind expects new ideas related to it. When the ideas come they will soon be recognized.{#blank#}3{#/blank#} This is because your mind is not prepared to recognize them. Just think, how many great ideas may have lost due to lack of curiosity?

    {#blank#}4{#/blank#}

    By being curious you will be able to see something new that is normally not visible. They are hidden behind the surface of normal life, and it takes a curious mind to look beneath the surface and discover the unknown.

    It brings excitement into your life.

    The life of curious people is far from boring. It's neither dull nor routine. There are always new things that attract their attention and there are always new “toys” to play with.{#blank#}5{#/blank#}

A. So is curiosity that important?

B. But why is curiosity so important?

C. It leads you to a new and exciting life.

D. It opens up new worlds and possibilities.

E. Curious people always ask questions and search for answers.

F. Rather than get bored, curious people have an adventurous life.

G. Without curiosity, the ideas may pass right in front of you and yet you miss them.

    We all know that a hot, milky drink and a warm bath are supposed to relax you before bed, but many of us still can't slip into sleep. Here are some tips to help you go to sleep.

    Breathe in through your left nostril(鼻孔)

    {#blank#}1{#/blank#} Sleep specialist Peter Smith says, “Lie on your left side, resting a finger on your right nostril to close it. Start slow, deep breathing in the left nostril.” Peter, author of Sleep Better With Natural Therapies, says this technique is particularly good when overhearting is preventing sleep.

    {#blank#}2{#/blank#}

    Relaxing all your muscles can prepare your body for sleep. Anxiety expert Charles Linden says: “Lying on your back, take a deep, slow breath in through your nose and, the same time, squeeze your toes tightly as if you are trying to curl them under your foot, then loosen them slowly. Breathe again, contract your leg muscles, then your thigh, belly, chest, arms, and so on until you hat all the way up your body{#blank#}3{#/blank#}

    Try to stay awake

Challenge yourself to stay awake— your mind will fight against it! “It's called the sleep paradox(悖论).” Says psychotherapist Julie Hirst. She explains: “Keep your eyes wide open, repeat to yourself 'I will not sleep'{#blank#}4{#/blank#}but instead view this as an instruction to sleep and eye muscles tire quickly as sleep turns up.”

    {#blank#}5{#/blank#}

    Use at least three senses imagining yourself in a situation where you feel content—a paradise(乐园), sailing on calm waters, walking in flower fields.

A. Just imagine.

B. Enjoy a paradise.

C. Squeeze and relax

D The brain doesn't process negatives well

E. You must repeat what you have done

F. This yoga method is thought to reduce blood pressure and calm you

G. When you have gone from head to toe, you should feel ready for sleep

    Artificial intelligence（AI，人工智能）can help us make phone calls, guide us to where we want to go, or play games. {#blank#}1{#/blank#} Researchers from Microsoft recently created the first machine translation system that can translate news articles from Chinese to English, Business Standard reported.

    According to Microsoft's official website, researchers tested the system by asking it to translate hundreds of sentences taken from news stories.{#blank#}2{#/blank#}They concluded that the system's translations were as good as the human translations. {#blank#}3{#/blank#}This is partly because different words can be used to express the same meaning. It can be hard to say which word is more “correct”.

    {#blank#}4{#/blank#}“Much of our research is really inspired by how we humans do things,” lead researcher Liu Tieyan said.

    One method is called dual learning（对偶学习）. In this method, the system translates every sentence from Chinese to English, as well as translating the sentences back from English into Chinese.{#blank#}5{#/blank#}This is similar to what humans do to make sure their translations are accurate.

        Another method makes use of deliberation networks. This is when the system is made to translate the same sentence over and over. Gradually, the system improves the quality of its translation, like humans who would improve their own writing by going over it again and again.

A. Machine translation is always challenging.

B. However, experts used several methods to improve the system's translation abilities.

C. Then, language experts compared the results to two translations that were done by humans.

D. Researchers collected a lot of data to help the system learn and improve.

E. And now, AI can do even more things.

F. Researchers have worked on machine translation for decades.

G. This way, the system can improve itself and learn from its own mistakes.

    People all have good days and bad days. And some of the bad days happen due to events beyond your control.{#blank#}1{#/blank#}One way to increase the possibility that you have a good day is to join in “gratification(喜悦)” activities , which you enjoy and you're good at.{#blank#}2{#/blank#}However, if you don't have the type of job, you can take part in other activities and find the same result.

    {#blank#}3{#/blank#}There are many little pleasures you can add to your life, such as tea, a warm bath, a walk in the park and so on. As long as you enjoy them, they can really brighten your every day. Laughter is also part of having a good day. That's why it's important to do what you can to create joy for you.{#blank#}4{#/blank#}After all, if you are humorous, you can more easily center on fun things.

    If you don't have much time, one way can be used during a stressful day.{#blank#}5{#/blank#}You should achieve this by making your plan flexible and checking that everything in your plan is necessary. Being busy is okay, but wasting time and energy on too many unnecessary things can just lead to stress.

A. Often, bad days come from overweight stress.
B. Some people experience joy and happiness at work.
C. Good moods enable us to notice more chances.
D. Life's pleasures are also able to add a quick lift to your mood.
E. However, people do have power in creating better days.
F. So it's important —especially if you're a busy person—to stay balanced.
G. Besides, developing a sense of humor also helps you have a good day.

Symptoms of Dehydration(脱水)

    You're bad- tempered.

    Researchers tested the mood and concentration of 25 women who drank healthy amounts of water one day, and then didn't over the next two days. When slightly dehydrated, the women reported tiredness, bad temper, headaches, and difficulty focusing. In a separate test, men with mild dehydration also had trouble with mental tasks. {#blank#}1{#/blank#} Scientists are still trying to figure out why.

    You have a bad workout.

    {#blank#}2{#/blank#} It impacts how much you can push yourself. Even a 2 to 3 percent fluid loss affects your ability to get a good workout and more than 5 percent dehydration decreases exercise capacity by about 30 percent. A no-brainer way to avoid dehydration and dehydration symptoms is to aim for this much water per day.

    {#blank#}3{#/blank#}

    Driving while dehydrated may be just as dangerous as getting behind the wheel drunk, in terms of how many mistakes you could make on the road. British researchers had participants take two-hour drives [using a simulator (模拟器). When they drank enough water, there were 47 driving errors. {#blank#}4{#/blank#}

    You feel dizzy when you stand up too fast.

    One of the signs of dehydration is when your blood volume and pressure drops, it can leave you feeling dizzy or faint, or bring on that rush of light-headedness after you quickly get up from sitting or lying down.

    The exact treatment for dehydration symptoms depends on age and how severely dehydrated someone is. {#blank#}5{#/blank#} Most of the time, however, people use some over-the-counter solutions for kids, and adults can drink more water

A. You drive like you're drunk.

B. Dehydration can be life-threatening.

C. To get rid of dehydration you have to replace lost water.

D. In extreme cases, people might go to the hospital for a treatment.

E. Dehydration reduces blood pressure and makes the heart work harder.

F. But when it came to mood changes, women changed much more than men's.

G. But when they are short of water, there were more than doubled driving errors to 101.