Let's face it: homework can be almost as frustrating for parents as it is for kids. Getting kids to do their homework can be a challenge, and when they do sit down to study, a variety of other problems can appear.

    Doing homework may not be as fun as playing video games or chatting with friends, but it shouldn't be something that kids hate. Your children's assignments should not be busywork, but should help them build a skill or learn something new.

    You can offer help by stepping in to answer questions or offer encouragement. This gives you a chance to see what they are learning and how well they understand the material. It helps you understand their learning style and shows you care about their education.

    Many kids refuse to study by asking why they have to learn things they'll never use in real life. If your son or daughter shows little interest in their assignments, you can make them seem more important by pointing out ways you use them in daily life.

    Parents who feel that their kids have too much homework can talk about it with the teachers, but they're in the minority. A 2007 survey showed that 15 percent of parents said their kids had too much homework. About 60 percent said the homework load was just right, and 25 percent thought their children had too little homework.

    If you think it takes your child too long to finish homework, try to determine whether the problem lies in having too much work or managing time poorly. One of the things homework is supposed to do is to teach time management.

    If your child feels bored while doing homework, consider the following suggestions to make study sessions more enjoyable.

    Get help from friends: if your children are struggling with an assignment, let them call a friend for help or invite a friend over to work on it with them. You might also invite neighborhood kids over and let them do homework together. Have them sit around the dining table and help each other.

    Add physical activities: set mini-goals for homework and allow time for stretching, jumping around, or a snack after each goal is completed. For a kid who can't sit still, find active ways to study.

    Turn the tables: let your children teach you a lesson. Let them give you a quiz on the things they have just learned.

    Injuries and deaths caused by driving after drinking are preventable. Sadly, actions by the police can only catch a small number of drunk drivers on the roads. It is up to each person to make the decisions.{#blank#}1{#/blank#}So we should help guide our friends and persuade them to avoid driving after drinking. Here are some tips.Start talking to the person early. With every drink, judgment becomes increasingly uncontrolled.{#blank#}2{#/blank#}So as soon as your friend starts drinking, you should try to persuade him to make a plan to get home safely. Remember, after he gets drunk, he may not listen to you.Help the person realize he is drunk. Talk to him and show him that he is increasingly clumsy.{#blank#}3{#/blank#}For example, ask who you can call to pick him up, or what public transport he would like to use. If he knows he is drunk, he may follow your advice.Make last efforts. If all else fails and a drunk person wants to drive home, threaten to call the police or take his keys.{#blank#}4{#/blank#}When he is not concentrated, take his keys. This may make it easier to convince him to take a cab home. Remember, don't give him the keys even if he's angry.{#blank#}5{#/blank#}If you once drove home after you got drunk, your friend may not listen to you. So in order to succeed in persuading your friend to avoid driving after drinking, you should behave yourself first.

A. Ask him where his keys are.

B. Set a good role model.

C. Give him an alternative way to get home.

D. But it isn't easy to make the right decisions.

E. Make him realize drinking makes him look like a fool.

F. The police will come to help you out once you call them.

G. It means the more one drinks, the less likely that he will listen to you.

    Perhaps at one point in time, it was acceptable to start any letter or e-mail with “To Whom It May Concern.”{#blank#}1{#/blank#} Starting your cover letter or e-mail for a job this way might give off the impression that you didn't do your research on who you're writing to{#blank#}2{#/blank#}After all, people who address other people by their names when writing and speaking to them tend to be more pleasant.

    {#blank#}3{#/blank#}It can be used in letters of recommendation or reference, formal complaints（抱怨）made to a company, letters of introduction, and letters of interest.

    Grammarly uses the example of needing to write a letter of recommendation, for a colleague who will have to make several copies to distribute to interviewers{#blank#}4{#/blank#}“In most cases, though, try to narrow your focus rather than cast a broad net,” notes Grammarly.”Ask yourself. Who does this e-mail concern? If you can honestly answer 'Anyone, 'then feel free to use “To Whom It May Concern.” （These are the things you should never say in your cover letter.）

    If you do happen to find that using “To Whom It May Concern” is appropriate, don't make grammar mistakes, for example, letters or punctuation.{#blank#}5{#/blank#}

A. However, it maybe interesting.

B. Those times have changed, though.

C. Making mistakes in writing will surely get you low scores.

D. It's also very impersonal, which some employers might not appreciate.

E. In that circumstance, sending and receiving letters is more of a formal greeting.

F. You might want to take note of other common errors you might be committing, too.

G. But according to Grammarly, there are four times when it's OK to use this greeting.

    Steel is a hard metal that people use to make many different products. Car bodies, bridges, building frames, and containers are just a few of the things made from steel. {#blank#}1{#/blank#} But steel is better than iron in many ways. Steel is stronger but lighter than iron. Steel also lasts longer than iron.

    {#blank#}2{#/blank#}Then they add carbon to the liquid iron. They may also add other materials to make different types of steel. For example, steel with added chromium（铬）is called stainless steel. It will not rust（生锈）or stain. Finally, workers use machines to cool the liquid steel into bars or long sheets.{#blank#}3{#/blank#}

    People made the first steel as early as 1400 BC. Ancient people heated iron inside a pile of burning charcoal（木炭）. {#blank#}4{#/blank#}. The result was not the same as modern steel, but it was stronger than regular iron.

    In the 1800s people began to use huge ovens to make large amounts of steel. In the late 1800s builders used steel to make some of the first skyscrapers. {#blank#}5{#/blank#}. In the 1900s new processes made steel-making easier. Today steel remains one of the most popular building materials in the world.

A. This added carbon to the iron.

B. Steel is quite different from iron.

C. The hardened steel may then be made into products.

D. Steel is basically iron mixed with a little carbon.

E. Then they will be cooled and put on the market.

F. To make steel, workers hear iron until it melts.

G. They also used steel to make large, modern bridges.

Dealing with Difficult Relationships

    Everyone has at least one awkward or tense relationship. {#blank#}1{#/blank#} It may be with somebody who will use up your energy whenever you are with them. Or worse, it could be someone who always cuts you down. By persuading you it's your obligation or duty, you forget about your own needs. Sadly, by remaining loyal to these people, you forget who you are. {#blank#}2{#/blank#} No matter who they are, it's necessary that you learn to set boundaries (界限) for yourself. It is you who allow them to take advantage of you or even belittle you.

    If you find a relationship unhealthy and it's time for you to set boundaries, the following advice may be helpful.

    Setting boundaries for difficult relationships starts by admitting how you are affected by the relationships. {#blank#}3{#/blank#} For example, it's time to study for tomorrow's test. But your friend wants to take you to a party. Here, setting boundaries will help protect your academic goals. Someone who pressures you to something you're not comfortable doing will stress you out. {#blank#}4{#/blank#}

Next, decide how much time you should spend with these people. {#blank#}5{#/blank#} But it's difficult to help others if you forget to protect your own priority (优先次序).

    Settling boundaries requires taking a long, honest look at yourself. By saying no to harmful patterns in relationships, you say “yes” to a healthier you.

A. Does this kind of relationship lower your self-respect?

B. These people may be your family members or even friends.

C. It's easy to spend too much time and energy offering them help.

D. People may try to keep you in an unhealthy relationship.

E. But a friend who considers how you feel will respect your willingness to try something new.

F. It's not easy to set boundaries because you may be afraid of losing them.

G. Do they bring you closer to your goals or pull you farther away?

    Directions: Read the following passage. Fill in each blank with a proper sentence given in the box.

    Each sentence can be used only once. Note that there are two more sentences than you need.

    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 with the wash water.

    Studies on microfibers in the environment

    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#}2{#/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#}3{#/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#}4{#/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. So if these microfiber s have been found in fish and seafood, are they safe to eat?

C. They can also move around the atmosphere.

D. Studies are conducted 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 w ash water.