Having a pet dog at home can be beneficial in many ways. It can teach you the value of responsibility, companionship, and caring for something other than yourself. Owning a pet dog is not just a temporary thing{#blank#}1{#/blank#}You should care for your pet dog properly so you do not neglect it and help your parents train the pet dog so it is well behaved. You should also make sure you deal with any issues your pet dog is having responsibly so you do not harm your pet dog in any way.

    {#blank#}2{#/blank#}You should start by providing the necessities for your pet dog, including food and fresh water. Your parents may already have a feeding schedule set up, with set times in the day for feeding your pet dog. You should follow this feeding schedule and ask your parents if you can help it with giving your pet dog food and water on a daily basis.

    Clean up after the pet dog. You can also be a good pet owner by making sure you clean up after your dog. This means picking up any food that falls out of its food bowl and wiping up any water around its water dish so its feeding area is clean.{#blank#}3{#/blank#}

    Take your pet dog for daily walks.{#blank#}4{#/blank#} You should create a walking schedule with your parents and assist your parents in walking your pet dog. You may put the collar or harness on the dog and take a tarn holding the leash during the walk, with the supervision of a parent.

    Play with your pet dog. You should spend at least ten to fifteen minutes a day playing with your pet dog so that it feels loved and acknowledged by you{#blank#}5{#/blank#}

A. Give food and water to the pet dog.

B. Train your pet dog with simple orders.

C. It is a permanent responsibility that you must care for on a daily basis.

D. Never ever try playing jokes on your pet dog, because it will get hurt easily.

E. You should also use encouraging words and reward it with a treat if it behaves well when playing.

F. You can also pick up any pet toys and put them in one area so that they are not scattered all over house.

G. M you have a pet dog that is medium to large in size, you will need to walk it on a daily basis.

    How to Say Goodbye

    Knowing how and when to say goodbye is often difficult, even in informal situations. But learning to say goodbye appropriately is a skill that will help you keep your relationships and let people know you care.{#blank#}1{#/blank#} Read on to learn how to recognize opportunities when you leave.

    {#blank#}2{#/blank#}

    When you're at any kind of party or gathering, or even a one-on-one conversation, it can be difficult to get away. Learning to recognize good opportunities to leave will make a short-term goodbye much easier.

Watch body language.

    People don't like telling you that they'd like you to leave.{#blank#}3{#/blank#} If the host of a party starts cleaning up, or withdraws (退出) from the conversation, gather your friends or belongings and make your exit. If someone starts checking their watch, or seems otherwise restless, it's also time to leave.

    Make plans to see each other again.

    Even saying, “See you at school tomorrow,” or “Can't wait to see you again at Christmas” keeps the goodbye light and focused forward.{#blank#}4{#/blank#}

Tell the truth.

    Many people expect to come up with a “good excuse” when they're ready to leave.{#blank#}5{#/blank#}If you want to leave, just say, “I'm going to go now, see you later.”

A. You don't need to.

B. Set up a coffee date.

C. Recognize when to leave.

D. So try and watch for signals.

E. It makes the goodbye easier.

F. It's also easier than it seems sometimes.

G. If you haven't already made plans, use it as an opportunity to make them.

    Four Ways to Be a Great Roommate

    Having a roommate can be one of the best experiences in college or, easily, one of the worst.

    {#blank#}1{#/blank#} Follow these tips to avoid the common mistakes that turn good roommate relationships sour.

    Talk things out.

    Communication is key. If something happens, sit down with your roommate and have a face-to-face conversation. I've seen roommate relationships fall apart because something happens and, instead of talking to each other, the two start complaining about their roommates behind their backs. {#blank#}2{#/blank#}

    Don't expect to be best friends.

    Some roommates become the best of friends, and some don't. Don't put pressure on yourself or your roommate, especially when you first meet. {#blank#}3{#/blank#} And if your roommate doesn't end up being your best friend, don't worry.

    Ask before you take.

    This applies to food, clothes and anything else. If you want to keep a relationship going, show your roommate that you have respect for what is his or hers by asking first. {#blank#}4{#/blank#}     ◇Clean up after yourself.

    This should do without saying. Don't be lazy. Or, at least, don't bury your roommate in your clothes and garbage. Most people I've come across in college are messy. {#blank#}5{#/blank#} But being considerate with where you put your stuff will help you avoid conflict.

A. So you need to think twice before you help your roommates out.

B. This creates nothing but awkward situations and unhappiness.

C. Even if you both agree to share everything, you should still ask.

D. You don't have all the time to clean your room and keep it organized.

E. It all starts with you to have a good relationship with your roommate.

F. Sometime you get stuck with someone who has tons of negative energy.

G. Remember, you're trying to make a new friend, not to scare your roommate away.

    Radar is an electronic device that detects planes, ships, coastlines, landmarks, and even storm clouds. The name radar comes from the first letters of the words radio direction and ranging. As the human eye uses light waves to see, radar “sees” with radio waves. Without radar, planes could not land safely in bad weather and ships could not move safely in thick fog{#blank#}1{#/blank#}

    In the 1800s it was discovered that radio waves could be reflected from objects. But scientists did not make great advances in radar research until the 1930s, when the world was threatened by war{#blank#}2{#/blank#} It has been used widely in almost every conflict since then.

    Echoes make it possible for radar to work. When a beam of radio waves is sent out, it strikes on an object and returns an echo. This echo is picked up by radar and recorded on a screen similar to television screen. On the screen an observer sees a flash, or a blip, that shows the direction and distance of the object.{#blank#}3{#/blank#}

    Airport control towers use radar to guide planes in for safe landings. Almost all large ships depend on radar to prevent collisions with icebergs or other ships{#blank#}4{#/blank#}Weather forecasters “see” the size, direction, and speed of storms on radar screens. Astronomers can even use radar to measure accurately the distance to the moon. Thus, the device has generated major advancements.

    {#blank#}5{#/blank#}Huge radar antennas have been installed all over the United States. They guard us against possible enemy attacks. We have ballistic—missiles (战略导弹)warning systems that can alert us to attacks when missiles are more than 1,000 miles away. Other radar systems warn us against enemy aircraft and even spying space satellites.

A. Police track speeders in radar-equipped cars.

B. These measurements are now highly accurate.

C. The device can be used in a wide range of fields.

D. It is therefore especially valuable to shippers and travelers.

E. During World War II many countries used radar effectively.

F. Today radar is used by commercial airliners and weather forecasters.

G. Strengthening national defense is one of radar's most important functions.

    Are Your Clothes Causing Pollution? Very small pieces of plastic, called microfibers, are polluting rivers and oceans. {#blank#}1{#/blank#} Clothes worn for outdoor activities and exercise are often made of artificial material, which is useful in keeping warm. But they contain very small plastic fibers, which may also be harming the environment when you wash them. When people wash these clothes, very small pieces go down the drain （下水道） with the wash water.

    {#blank#}2{#/blank#}

    Pollution caused by plastic is not new，but recent studies have shown the effect of microfibers in the environment.

    Studies show very small microfibers are ending up in our waters，which may come from waste water treatment factories. A 2015 study found them in fish from California.

    Microfibers, effect on food supplies.

Beyond the waterways，the researchers say microfibers may end up in soil and agricultural lands. {#blank#}3{#/blank#}This means there is much to be learned about microfibers and the environment. Some studies have shown that microfibers end up inside sea animals，like oysters. {#blank#}4{#/blank#} Researchers say that the fibers tend not to move into the tissue of the fish，but it needs more study.

    Steps to save or keep microfibers from the environment.

    Until more information becomes known，there are steps to take to reduce the amount of microfibers in the environment. People should use less of the artificial materials. If we already have those in our lives and we're using them，an important step would be washing them less. {#blank#}5{#/blank#} A bag is being designed in which to wash these clothes. It traps the microfibers in the bag and it may be available for purchase soon.

A. New technology may also help.

B. Studies on microfibers in the environment.

C. They can also move around the atmosphere.

D. Studies on how much of the microfibers is released.

E. The source of these microfibers may surprise you: your clothes.

F. Washing machines keep microfibers from escaping with wash water.

G. So if these microfibers have been found in fish and seafood, are they safe to eat?

Five steps to make a difference to the oceans

    The oceans are being seriously polluted now. Plastics are harming the marine (海产的) life. Carbon pollution is warming the oceans and increasing their acidity(酸度). Waters are being overfished. {#blank#}1{#/blank#} Here are some steps we can take to help make a difference.

    ⒈Bring our own bags. {#blank#}2{#/blank#} Try carrying a reusable bag at all times, including while traveling, and bringing our own things to work to avoid relying on plastic items.

    ⒉Talk about it now. We should carry that conversation into public places. Talk to our friends and family about why the ocean is important and why we take steps to help it, and challenge them to do the same.

    ⒊{#blank#}3{#/blank#} A good way to make a difference is to organize a garbage cleanup now. Whether it's an inland cleanup or one near the coast, plan one in our community.

    ⒋Throw away our cars. {#blank#}4{#/blank#} When we hang out, we should reduce our carbon footprint, which may help slow global warming and ocean acidification as well as conserve energy

    ⒌Recycle, obviously. Experts say recycling is an obvious action to take. Check on what can be recycled in our community, and make sure you're separating out your plastic.

    In summary, think about it more and act on it more. The more someone thinks about plastics and plastics pollution, the environment and the consequences of our actions, the more likely they are to act on it. {#blank#}5{#/blank#}

A. Plan a cleanup.

B. Choose public transportation over driving our cars.

C. Driving cars is not a good way to protect the oceans.

D. However, experts say there's still hope to make a difference.

E. However, marine life plays a very important role in the oceans.

F. If everyone can contribute to the oceans, the oceans will be well preserved.

G. Whenever we put something, we should bring our own bag, but not a plastic one.