The First Americans

    There was a time long ago when a land bridge connected Asia and North America. The first settlers in North America crossed this land bridge from what is now Siberia to Alaska. The people who made this initial crossing were probably following the animals they used for food.

    Finally, the oceans rose and the land bridge between the continents disappeared. The settlers, who I shall call the “First Americans”， could not return to their homeland.{#blank#}1{#/blank#}

    For the next few thousand years, the First Americans moved south and east throughout North and South America. They made the journey all the way from Alaska to the southern tip of South America, a distance of more than 10,000 miles.{#blank#}2{#/blank#}

    In the far north, above the Arctic Circle, the First Americans became hunters of the ocean.{#blank#}3{#/blank#}In the summer, they gathered berries and other plants. In the winter, they stayed in lodges much of the time preparing for the next summer. It was a hard life, but they learned to survive in these terrible conditions.

    Farther south, in what is now Arizona, Utah, Colorado, and New Mexico, the First Americans became cliff dwellers. They began by living in caves that already existed in the cliffs.{#blank#}4{#/blank#}The dwellings they built in many ways resembled today's apartment buildings.

    {#blank#}5{#/blank#} They built a system of dams and canals so they could store and use water almost any time of the year. They were so successful that they could raise fruits and vegetables that were not found naturally in the desert.

A．They also discovered foods like corn and potatoes.

B．Along the way, they established many different civilizations.

C．They discovered how to add to the caves by building structures of wood and stone.

D．People living near each other tended to share similar environments and customs.

E．They built boats of animal skins and hunted or fished for their food.

F．They would have to survive in the New World they had discovered.

G．The First Americans of the Southwest learned to water the desert.

    Weight loss is a hard topic. Lots of people aren't satisfied with their present weight, but most people aren't sure how to change it. You may want to look like the models or actors in magazines or on TV, but those goals might not be healthy or realistic for you.{#blank#}1{#/blank#}

    So what should you do about your weight control?

    {#blank#}2{#/blank#}The best way to find out if you are at a healthy weight or if you need to lose or gain weight is to talk to a doctor or dietitian（营养学家){#blank#}3{#/blank#} If it turns out that you can benefit from weight loss then you can follow a few of the simple suggestions listed below to get started.

    {#blank#}4{#/blank#}People who lose weight quickly by crash（速成的）dieting or other extreme measures usually gain back all of the pounds they lost, because they haven't permanently changed their habits. Therefore, the best weight management ways are those that you can maintain for a lifetime.

    Small changes are a lot easier to stick with than large ones. Try reducing the size of what you eat.{#blank#}5{#/blank#} Once you have that down, start gradually introducing healthier foods and exercise into your life.

    It's a good idea to maintain a healthy weight because it's just that: healthy.

A. Try giving up regular soda for a week

B. Try to pay attention as you eat and stop when you're full.

C. Weight management is about long-term success.

D. Besides, no magical diet will make you look like someone else.

E. Being healthy is really about being at a weight that is right for you.

F. Changing from whole to nonfat or low-fat milk is also a good idea.

G. They will compare your weight with healthy standards and help you set goals.

    Some people are naturally better than others at social activities. There are the lucky few that draw people to them without any effort. {#blank#}1{#/blank#}Put yourself at ease and remember these tips:

    Smile! A smile is understood in any culture and any age as a sign of friendship. So go ahead! It will put the other person at ease. You will seem approachable and happy. {#blank#}2{#/blank#}

    Make eye contact. Good eye contact engages the other person to you. When you are introduced to someone, shake their hands and repeat their names. {#blank#}3{#/blank#}Making eye contact shows you have confidence and shows you are interested in the other person.

    {#blank#}4{#/blank#} Having a trusted friend next to you makes it less frightening to walk into a room full of people. But remember that even if you walk in as a pair, it doesn't mean you just stick together the whole time. The point in a social gathering is you make friends with other people.

    Go to social settings with a shared interest. For example joining an art class automatically puts you in a setting with other people you already have a common interest in. {#blank#}5{#/blank#}

A.Go with friends.

B.Ask the other person questions.

C.That will help you remember their names.

D.This is the worst impression to make in any setting.

E.It will let the other person know that you are safe to talk to.

F.But for most of us, we feel shy and awkward in social activities.

G.You now have something to talk about and work it from there.

    Whether you're a child, teenager, young adult or are middle-aged, respect for your parents is an important value. Your parents are the people who raised you, devoting time, energy and money to your development. {#blank#}1{#/blank#} No matter your age is, there are 5 ways to show respect.

    Respect their belongings.

    One important way to show respect is to show regard for the things important to your parents. For younger children, this may mean not touching jewelry or other valuable things. For grown children, respect may mean returning a borrowed tool in good condition and on time. Lack of respect for a parent's belongings is a violation of personal boundaries. {#blank#}2{#/blank#}— And never borrow things without asking first.

    Punctuality.

    {#blank#}3{#/blank#} Therefore, always be on time. For teenagers, showing up on time means coming home by curfew （宵禁）.Adult children should show up on time for family dinners or events, or to pick a parent up for a medical appointment. Call if you're going to be late because parents worry about children, no matter their age is.

    {#blank#}4{#/blank#}

    Remembering birthdays, anniversaries and other special days is a sign that you honor your parents. Make plans to take them to lunch or dinner or bake a cake or cookies. Most parents don't expect expensive gifts, but a handmade gift is always appreciated .A phone call from a grown child who lives too far for a visit is a welcome sign of respect.

    Be kind.

    Kind words and affection are simple ways to show respect. Tell your parents you love them. Listen and allow your parents to speak without interruption. Show a sincere interest in what your parents have to say. Be patient with your parents and don't rush them. Never talk back or be rude or disrespectful. Acknowledge your parents' achievements. {#blank#}5{#/blank#}

A. Celebrate with them.

B. Be a good listener.

C. Don't take advantage of your parents' kindness and generosity.

D. Treat your parents the way you would like to be treated.

E. Being respectful helps build positive relationships with others.

F. And they love you unconditionally throughout your life.

G. Lateness indicates a lack of respect.

    12 months ago, we tested most of the drone (无人机) models on the market. Typically models under $100 were very difficult to control even in light wind. {#blank#}1{#/blank#} However in the last few months, a cheap drone model called the DroneX pro has been receiving a lot of praise among experts.

    Why is this extremely high quality drone so cheap?

    The DroneX Pro was designed by two engineers and drone lovers. They did lots of research and came to a shocking conclusion. The high-quality technology in most expensive brand drones comes mostly from the SAME supplier companies and was quite inexpensive. In other words? {#blank#}2{#/blank#} it's because the cost of advertising the brand name itself is very high.

    {#blank#}3{#/blank#}

    Intelligent flight modes enable the drone to land safely and make 3D spins & other cool flips.

    The high-quality hidden 3-axis gimbal (三轴万向节)is able to stabilize the camera even at high speed for sharp images and jitter-free video. Even with wind, the videos are razor-sharp in real-time transmission from your environment -like a HD live stream.

    The wide-angle lens provides 100mbps ultra-HD images for wonderful and crystal clear images.

    When folded up, the drone is barely larger than a fist. It fits in every belt bag and in every backpack! You do not need a film crew when flying the DroneX Pro.

Why is this drone so popular?

    This drone costs only a small part of the price of professional brand drones. It comes in a sleek and compact design and can be taken anywhere. It is also quiet in the air and has an improved flight time.

    {#blank#}4{#/blank#} Flying feels very natural. Even a first time drone flyer can learn to use it in a matter of minutes. It is unbelievable how easy to fly the drone is thanks to its included controller.

    Our conclusion

    This brilliant new drone is taking the world by storm. {#blank#}5{#/blank#} the best el ling gift in 2019.

A. This cheap drone might be the best selling gift in 2019.

B. Their camera also struggles to deliver high-quality photos and videos.

C. Is this inexpensive drone really as good as the experts are saying?

D. What makes the DroneX Pro so special?

E. That means they're able to offer a world class quality drone at an incredibly low price.

F. The reason why brand name drones are so expensive isn't because of their technology.

G. This drone makes beginners look like professionals.

    From time to time, we all get a bit down. Maybe we are feeling bad because we're not doing well with our goals. There are many reasons for feeling down, but I'm not able to discuss all of them.{#blank#}1{#/blank#}
    Make a list. Sometimes we are sad simply because we are troubled by all the things we have to do.{#blank#}2{#/blank#}Make a list of the most pressing things you have to do. Thus you're getting things under control. You can see, right in front of you, what you need to do, and that can pick up your mood.
    {#blank#}3{#/blank#}You've made a list, and you still feel puzzled? Well, get started on the first thing you need to do. Once you get into action, you'll feel better. And once you start doing something, you will feel much better than lying around feeling sorry for yourself.
     {#blank#}4{#/blank#}I like Brown Eyed Girl, the Kinks, the Ramones, or an upbeat Beatles tune. You might have your own brand of feel-good music. Whatever it is, let yourself move to the beat. It may just be what the doctor ordered.
    Talk about it. Get a best friend, family member or coworker you can talk to.{#blank#}5{#/blank#}It can also help you work out the reasons you're feeling down.

A. Take action.

B. Play some lively music.

C. Get out of the house and do something.

D. Getting things off your chest makes a big difference.

E. Start simply by picking up a piece of paper and a pen.

F. Do whatever you need to do to feel good about yourself.

G. What I can talk about are some things that have worked for me.