There are many wetlands (湿地) in China ‒ and some of them have become the world's important wetlands. The Chinese Yellow Sea Wetlands are {#blank#}1{#/blank#} them. They are in Yancheng, Jiangsu Province. They are {#blank#}2{#/blank#} to many different kinds of animals. The world's {#blank#}3{#/blank#} Milu deer nature reserve (自然保护区) is on these wetlands. More than 700 Milu deer live there. There are not many red-crowned cranes (丹顶鹤) {#blank#}4{#/blank#} in the world, but every winter, you can see some in the red-crowned crane nature reserve in the Yellow Sea Wetlands.

    The {#blank#}5{#/blank#} in the wetlands is neither too high nor too low. There is  {#blank#}6{#/blank#} rain and sunshine, too. They are a good place for wildlife. But offering food and shelter for special kinds of animals is not the  {#blank#}7{#/blank#} reason we need to protect wetlands. Wetlands are important {#blank#}8{#/blank#} they also prevent floods. But some people want to {#blank#}9{#/blank#} the wetlands to make more space for farms and less space for wildlife.

    More people are beginning to realize the {#blank#}10{#/blank#} of wetlands and wildlife. Every year, on Feb 2, many activities are held to teach people about the wetlands.

Humans are mammals (哺乳动物). Most mammals are born able to do many things.

Some can walk within a few minutes of being born. They have to be able to run away if 1 is near. But human babies are born 2. They need the care of adults to live.

In the first month of life, babies can not smile or sit up. They can not even hold up their own heads 3 some help from grown-ups.

In the next few months, babies grow a lot. They learn to roll over, support their heads, and 4 sit up while being held.

Babies also have to learn to use their 5. It takes months for them to learn to reach for objects. At around six months old many babies can 6 an object from one hand to another.

Babbling is 7 a human baby learns to speak. Babies all seem to make similar sounds by babbling. They try to imitate (模仿) the sounds they hear from adults. It will take about nine months 8 a baby can say real words.

Somewhere around a baby's first birthday he or she may stand or walk with help. Soon the baby will 9 around on his or her own!

The first year of a baby's life is a time of growing and 10. Growing sure takes a lot of work!

We rely on our memory for sharing stories with friends or learning from our past experiences. Yet evidence shows that our memory isn't as consistent as we'd like to believe.

There are countless reasons why tiny mistakes might happen each time we recall past events. And whenever these mistakes happen, they can have long-term effects on how we'll recall that memory in the future.

Take storytelling for example. When we describe our memories to other people, we might ask ourselves whether it's important to get the facts straight, or whether we only want to make the listener laugh. And we might change the story's details depending on the listener's attitudes. It isn't only the message that changes, but sometimes it's also the memory itself. This is known as the "audience-tuning effect", showing us how our memories can change automatically over time, as a product of how, when, and why we access them.

In fact, sometimes simply the act of repeating a memory can be exactly what makes it easy to change. This is known as "retrieval-enhanced suggestibility". In a typical study of this effect, participants watched a short film, then took a memory test a few days later. But during the days between watching the film and taking the final test, two other things happened. First, half of the participants took a practice memory test. Second, all of the participants were given a description of the film to read, which contained some false details. Participants who took a practice memory test shortly before reading the false information were more likely to reproduce this false information in the final memory test.

Why might this be? One theory is that repeating our memories of past events can temporarily make those memories malleable. In other words, retrieving（找回）a memory might be a bit like taking ice-cream out of the freezer and leaving it in direct sunlight for a while. By the time our memory goes back into the freezer, it might have naturally become a little misshapen, especially if someone has influenced it purposely in the meantime.

These findings lead us to wonder how much our most treasured memories have changed since the very first time we remembered them. Remembering is an act of storytelling, after all. And our memories are only ever as reliable as the most recent story we told ourselves.

Things to Do in Star Town This Summer

Drones（无人机）are like planes, but come in many shapes and sizes. They have no pilots and are controlled from outside the drones. During these years, they have been used to attack（进攻）enemies or moved goods（货品）in dangerous areas. 

Now small drones are part of people's lives. For example, people use drones to take photos or make videos. Besides, a drone delivery（n.投递）service has proved（证明）successful. 

Online store JD can use drones to deliver small packages（包裹）. It has built several drone stations so that it can load（装载）and deliver（v. 投递）its packages. 

Drones have made our shopping experience different. We can order a new coat in the early morning and it will be delivered before we finish breakfast. 

Bizzby Sky, a UK company, has created a delivery service for small goods. Open a smart phone app, enter your address, set a time and pay enough money for the delivery service. Then in minutes, a drone will do tasks for you. 

However, any drone company needs government permission（允许）to fly its drones in many countries. We believe we will see more and more drones with goods fly in the sky very soon. 

Americans love to drive. They have drive- in movie theaters and drive- through restaurants. And they also drive for vacations. They often call it the "Great American Road Trip": the whole family gets into a car or recreational vehicle(RV,旅行房车), and goes on a summertime trip across the country.

American cars are always big, but RVs are the biggest. These are houses on wheels. RVs have kitchens, bathrooms and bedrooms. All across the country you can find RV parks. They are places to park your RV and spend the night. And, if you can't find a good park, you can always make your home in a grocery store parking lot(杂货铺停车场).

When your little brother kicks you in the face all night in your small bed under the table, a big RV can seem very small. And, when the dog barks(吠) and Mom plays her country music on the radio—your family is not at its best. What's worse, RVs are always breaking down.

But RV travel can be a great time with the family, too. You can see the country in the comfort of your own "home". You can spend every night in a different scenic(景色的) place, or just stay where you are. You don't have to pay for hotels or restaurants, only gas. But, best of all, you are free to go wherever you want whenever you want in your home-away-from-home.