Recently some American scientists have given a useful piece of advice to people in industrialized nations．They say people should eat more of the same kind of food eaten by humans living more than 10,000 years ago． {#blank#}1{#/blank#}

    The scientists say that the human life has changed greatly．Our bodies have not been able to deal with these changes in lifestyle and this had led to new kinds of sicknesses． {#blank#}2{#/blank#} So they are called “diseases of civilization”．Many cancers and diseases of the blood system are examples of such diseases.

    Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none． {#blank#}3{#/blank#} However, a change in food is one of the main differences between life in ancient times and that of today.

    Stone Age people hunted wild animals for their meat, which had much less fat than domestic ones．They ate a lot of fresh wild vegetables and fruits．They did not have milk or any other dairy products, and they made very little use of grains． {#blank#}4{#/blank#} We eat six times more salt than our ancestors．We eat more sugar．We eat twice as much fat but only one third as much protein and much less vitamin C.

    {#blank#}5{#/blank#} But scientists say that we would be much healthier if we eat much the same way the ancient people did, cutting the amount of fatty, salty and sweet food.

A．Stone Age people lived a simple life.

B．But today, we enjoy eating a lot of these.

C．In that case, they would live much healthier.

D．Ancient people also got lots of physical exercise.

E．These new sicknesses were not known in ancient times.

F．People today probably don't want to live like our ancestors.

G．Modern people used to suffer from “diseases of civilization”.

What Teenagers Can Do to Earn More Respect?

    As teenagers continue to grow and develop into young adults, the transition (过渡) into adulthood has begun. With so many physical and emotional changes going on, certain manners are often forgotten and other adult traits are not yet accepted as a way of life. {#blank#}1{#/blank#} By doing the following things, you will earn more respect.

Contribute to the household

    At the very least, clean up after yourself. As a teenager, you are old enough to clean up after yourself. When you make a mess, clean it up. {#blank#}2{#/blank#} All chore (杂活) that you do help to reduce the load of the person who did them before. Now that you're old enough and capable, why shouldn't you contribute to the household? {#blank#}3{#/blank#}

Be responsible

    {#blank#}4{#/blank#} Whether they are basic things, like brushing your teeth or doing your homework, or more involved chores that contribute to the household, simply fulfill your responsibilities on time. When adults know that they can rely on you, their trust and respect for you will increase.

Solve more of your own problem without asking for help

    Instead of taking the easy approach and asking for help, make an effort to solve your problems on your own first. The “easy way” is only easy for you, but it is an extra task for the person from whom you are seeking help. Seek help only after you have made an honest effort to solve your own problems. {#blank#}5{#/blank#} When you become a good problem solver, you increase your value to the community.

A. Everyone has certain responsibilities.

B. By being aware of these manners and traits, you can manage them sooner.

C. When speaking to a group, speak loud enough.

D. The people doing the chores before will greatly appreciate the help.

E. Depending on the problem, 15 minutes of effort is usually a good guideline.

F. It will make your life more pleasant.

G. This includes, but is not limited to, your dishes and your room.

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?

A: Excuse me, Madam. You can't park in front of the shop.

B: I'm so sorry. It's my first time to drive alone. {#blank#}1{#/blank#}

A: {#blank#}2{#/blank#} I think you can park there.

B: {#blank#}3{#/blank#}

A: About two kilometers.

B: Thanks. Can you tell me the way there?

A: You can use the guide map in your car. {#blank#}4{#/blank#}

B: But I don't know how to use it! Can you help me?

A: {#blank#}5{#/blank#} All right, it's OK now.

B: It's very kind of you. Thank you so much!

A: You are welcome.

Go fly a kite

    Learning how to fly a kite is simple and flying kites can be a fun form of exercise.

    Of course, the first thing you need is a kite and a ball of string (线). {#blank#}1{#/blank#} Then wait for a windy day.

    When the perfect day arrives, find an open space, such as field. {#blank#}2{#/blank#}

    Before flying your kite, find out which way the wind is blowing. {#blank#}3{#/blank#} To begin flying your kite, stand with your back to the wind and hold the kite up so the wind can catch it. If the day is not very windy, you may need to get your kite started by running.

    {#blank#}4{#/blank#} At the same time, walk backwards a few steps to keep the string tight. Now that your kite is up in the air, you can decide how long to fly it and how high you want it to go.

    {#blank#}5{#/blank#} Slowly wind up (卷起) the string. Try not to pull your kite in too fast or it may crash (坠落).

    Flying kite is a great way to spend a windy afternoon. If you follow these steps carefully, you will have something more fun to do than sitting inside and watching TV. So on the next windy day, get up off the sofa. Go fly a kite!

A. You can do this by throwing grass into the air.

B. Finally, you will need to bring your kite down.

C. You can buy your kite and string at a toy shop.

D. Follow the instructions to put your kite together.

E. Nothing beats seeing a kite sail high into the clouds.

F. Don't fly your kite near trees because it can get caught.

G. Once the wind catches your kite, let out more string so it can climb higher.

    Americans use many expressions with the word "dog". People in the United States love their dogs and treat them well. {#blank#}1{#/blank#}However, dogs without owners to care for them lead a different kind of life. The expression, to lead a dog's life, describes a person who has an unhappy existence.

    Some people say we live in a dog-eat-dog world. {#blank#}2{#/blank#}They say that to be successful, a person has to work like a dog. This means they have to work very, very hard. Such hard work can make people dog-tired. And, the situation would be even worse if they became sick as a dog.

    {#blank#}3{#/blank#}This means that every person enjoys a successful period during his or her life. To be successful, people often have to learn new skills. Yet, some people say that you can never teach an old dog new tricks. They believe that older people do not like to learn new things and will not change the way they do things.

    {#blank#}4{#/blank#}People who are unkind or uncaring can be described as meaner than a junkyard dog. Junkyard dogs live in places where people throw away things they do not want. Mean dogs are often used to guard this property. They bark or attack people who try to enter the property. However, sometimes a person who appears to be mean and threatening is really not so bad. We say his bark is worse than his bite.

Dog expressions are also used to describe the weather. The dog days of summer are the hottest days of the year. A rainstorm may cool the weather. But we do not want it to rain too hard. {#blank#}5{#/blank#}

A. Some people are compared to dogs in bad ways.

B. Dogs are people's loyal friends all the time.

C. Still, people say every dog has its day.

D. They take their dogs for walks, let them play outside and give them nice meals.

E. That means many people are competing for the same things, like good jobs.

F. Sometimes, morning rain can light up the day.

G. We do not want it to rain cats and dogs.