Most animals have little connection with animals of a different kind, unless they hunt them for food. Sometimes, however, two kinds of animals come together in a partnership (伙伴关系) which is good for both of them. You may have noticed some birds sitting on the backs of sheep. This is not because they want a ride, but because they find easy food in the parasites (寄生虫) on sheep. The sheep allow the birds to do so because they remove the cause of discomfort. So although they can manage without each other, they do better together.

    Sometimes an animal has a plant partner. The relationship develops until the two partners cannot manage without each other. This is so in the corals(珊瑚) of the sea. In their skins they have tiny plants which act as “dustmen”, taking some of the waste products from the coral and giving in return oxygen which the animal needs to breathe. If the plants are killed, or are even prevented from receiving light so that they cannot live normally, the corals will die.

    Parents should help their children understand money. {#blank#}1{#/blank#} So you may start talking about money when your child shows an interest in buying things, candy or toys, for example.

    Tell them the basic use of money.

    Begin explaining the use of money by showing how people buy things. If your child wants to have a toy, give him the money and let him hand the money to the saleswoman. {#blank#}2{#/blank#} When your child grows a bit older and understands the use of money, you can start explaining more ways of using money.

    Give them money lessons.

    {#blank#}3{#/blank#} If you must say no to a child's request to spend money, explain, “You have to make a choice between this and that toy.”

    {#blank#}4{#/blank#}

    You can show your child how to make choices between different brands（牌子） of a product so that you can save money. {#blank#}5{#/blank#} If he chooses the cheaper brand, allow him to buy other things with the money saved.

A. Make wise decision.

B. Tell them the value of money.

C. Allow the child to choose between them.

D. Tell your child why he can or cannot have certain things.

E. Ask yourself what things that cost money are most important to you.

F. Talk about how the money bought the thing after you leave the toy store.

G. The best time to teach a child anything about money is when he shows an interest.

    Communicating with elderly parents is an important part of making sure they're doing okay.{#blank#}1{#/blank#}

    It's important to set aside time every week to call up or drop by and see how your parents are doing.{#blank#}2{#/blank#}Also listen for the things they're not telling you, such as health problems or money worries.

    Your parents might be slower and less active than before.{#blank#}3{#/blank#}It's important to respect this. Don't think that your elderly parents can't take care of their needs unless there are clear signs that this is the case. Remember, your elderly parents always care about being treated as someone who matters.

    {#blank#}4{#/blank#} Also you must keep your words simple and often ask your elderly parents whether they've really understood. If you realize your parents need to make a major change, like moving to a nursing home, talk about such future issues early in small steps. Ask them about their plans for the future and what they hope. When you get a feel for what they prefer, you can slowly mention the topic of starting to make such changes.

    Accepting the generation gap (代沟) is also important.{#blank#}5{#/blank#}For most people, making changes to their lifestyles, their opinions and their beliefs gets much harder as they age. Your views might differ a lot, but it's best to agree to disagree.

A. Bring happiness into your parents' life.

B. Be clear when you explain anything to your parents.

C. However, they're still able to make their own decisions.

D. Know their daily happenings and ask them what they're doing.

E. Though life is busy, remember to stay in touch with your parents.

F. Your parents have been doing things a certain way for a long time.

G. Be prepared to find suitable advisers that your parents might need.

    In many countries, authority is seldom questioned, either because it is highly respected, or because it is feared. Because rank has been important in certain societies for a long time, people have been trained never to question those in authority. For example, children are not expected to question their teachers in school. It may be considered improper for young businessmen to suggest ideas that differ from those of older, more experienced members of the business.

    In other countries, including America, children are trained to question and search for answers. When a child asks a question, he will often be told to go to the library and find the answer for himself. By the time students reach the age of 14 or 15, they may be developing exciting new ideas in all fields of science and arts. To encourage such creativity, there are many national prizes offered to students every year for their scientific discoveries and artistic accomplishments.

    This interest in questioning and searching may be considered by some people as bad for young people's manners, that young people lack respect for authority. This impression may be created when visitors notice young Americans asking questions and arguing with older people. However, this is because many Americans have a different attitude toward authority than may exist in other areas of the world. In a work or business situation, ideas are freely and openly discussed and argued. It is important to remember that it is the person's ideas that are being questioned, not the individual himself. The two are quite separate. The purpose of the searching, questioning, and arguing is to find the facts in a particular situation, and therefore a solution, so that the work of the business can progress in the most effective manner possible.

    As was mentioned earlier, you may notice the same questioning in social conversations. Although some individual may think that Americans are rude because of the direct manner with people, they are merely trying to learn more about your ideas.

    During World War Ⅱ, William Powell served in Europe as a solider in the US Army. Golf was his hobby. He played at some of the most popular courses in Scotland. However, upon his return home, William Powell was discouraged to find that he wasn't allowed to play golf at local courses because he was an African American. William Powell took a unique approach to solving his problem. He built his own golf course.

    William Powell began the construction of the Clearview Golf Course in 1946. He moved rocks and spread grass seeds to build a golf course in Canton, Ohio. He convinced two African American doctors to invest in the course and continued to build it for the next year and a half. William Powell built it without the help of a designer. He did it while working at night as a security guard. In 1948, the Clearview Golf Course opened, and the business is still popular today.

    In 1967, William Powell's daughter, Renee, became a professional golfer on the Ladies Professional Golf Association (LPGA) tour. Now, she serves as Head Professional at her father's golf course. In 2001, the Clearview Golf Course was one of the 15 golf courses listed on the National Register of Historic Places. It's the only course owned, built, designed and run by African Americans. The Clearview Golf Course not only serves as a challenge to experienced golfers, but also provides an enjoyable round for those players who are new to the game.

    In 2009, the Professional Golfers' Association of America (PGA of America) honored William Powell with a Distinguished Service Award. William Powell, 92 years old, accepted the award politely. "I have had so many special things happen to me, because the golf sees no color," he said.

    With the development of technology and economy, social media is becoming one of the fastest-growing industries in today's world. A study conducted by the US Pew Research Centre showed that 92 percent of teenagers go online daily. {#blank#}1{#/blank#}

    Changing relationships.

    High school student Elly Cooper from Illinois said social media often reduces face-to-face communication. "It makes face-to-face relationships harder because people's attention is given to their phones instead of their friends," Cooper said.

    {#blank#}2{#/blank#} Beth Kaplan from Illinois meets her long-distance friend through social media. He currently lives in Scotland, but they're still able to frequently communicate with each other. "I can feel close to someone that I'm talking to via FaceTime," Kaplan said.

    Wanting to be "liked".

    {#blank#}3{#/blank#} The 19-year-old Essena O'Neill announced on the social networking service Instagram that she was quitting social media because it made her unable to stop thinking about appearing perfect online. {#blank#}4{#/blank#} Teenagers who get harmful comments can't help but feel hurt.

    {#blank#}5{#/blank#}

    However, Armin Korsos, a student from Illinois, takes advantage of the comments(评论) he receives over social media to improve his videos on the social networking site YouTube. "Social media can help people show themselves and their talents to the world in a way that has never been possible before," Korsos said.

A. Opening new doors.

B. Teenagers' attitude toward social media.

C. Unpleasant comments can also do great damage to a teenager's self-respect.

D. The wide spread of social media has changed nearly all parts of teenagers' lives.

E. Yet, the social media is beneficial to show people's talents.

F. The rise of social media has changed the way teenagers see themselves.

G. Yet, some people believe social media has made it easier to start relationships with anyone from anywhere.