When we are talking about animals in China, the most precious (珍贵的) animal we would think of is the panda. In fact, we have one kind of bird as precious as the panda,1many people don't know much about it. The bird is called crested ibis (朱鹮) . It is as2as snow with a red face and looks very beautiful. It is also in danger like the panda.

Crested ibises3in tall trees by small rivers or rice fields. They look for small fish and4small animals for food. About one hundred years ago,5crested ibises lived in China, Russia and Japan. Later, as they lost their homes,6them was getting smaller and smaller. Between 1965 and 1980, people didn't see any of them living in the wild. Luckily, on May 23, 1981, scientists7seven of them in the south of Shanxi Province. 8protect crested ibises in the wild, the Chinese government is setting up nature parks and developing other plans. Now scientists are doing a lot of research to help them to9more babies. Today there are about 1,500 crested ibises living in the wild. Zoos and research centres10after about 500 crested ibises.

    Cars make our lives more convenient. But theycan also be a problem. For example, fossil fuel (化石燃料)cars mainly cause air pollution.

    To improve the environment, many countriesare developing electric vehicles (EVs,电动车).Among them, China is taking a leading role and has created the world's largestEV market.

    Last year, over 40 per cent of the 753,000EVs sold in the world were sold in China, more than twice as many as the numbersold in the United States.

    "Filling up a fossil fuel car with gas(汽油) is more expensive than charging (充电) an electric car," said Wu Hao, who bought an electric carthis year.

    However, there are still some problems. Itcan be hard to find charging piles (充电桩) andthe cars can't go far before being recharged.

    Some of these problems are being solved. In2014, China had 31,000 charging piles. Now China has the world's largest EVcharging network, with more than 450,000 charging piles in total.

    Developing EVs is one of many efforts thatChina has made to cut down pressure on its environment after the governmentpromised to stop increases in carbon dioxide emissions (二氧化碳排放量) by 2030.

    "As China goes, so will the world'scar industry," the Wall Street Journal said.

Man first walked on the moon 55 years ago. Now we are still {#blank#}1{#/blank#} (梦想) of living in space.

We learn from the {#blank#}2{#/blank#}(新闻;消息) that a US company is building a space hotel—The Von Braun Station. It looks like a wheel(车轮) from the outside and as many as 400 people can live in it. So what will the hotel be like {#blank#}3{#/blank#}(在里面)? In some ways, it is just like {#blank#}4{#/blank#}(普通的) hotels on the earth. People can have a drink in bars while enjoying the {#blank#}5{#/blank#}(宇宙). But living in such a hotel is still {#blank#}6{#/blank#}(不可能的) at the moment. It's said that the company plans to complete the {#blank#}7{#/blank#} (项目) by 2025 and open it to the public by 2027. And space travel is {#blank#}8{#/blank#} (昂贵的). One person will spend 250,000 dollars {#blank#}9{#/blank#} (到达;抵达) the hotel. And the {#blank#}10{#/blank#}(价钱;成本) of staying in the hotel will be 9.5 million dollars.

①As missing children get older，they become quite different from the faces in their last﹣known photographs，which makes finding the really difficult. Now AI（人工智能）can make it easier to match any found children to those old photos. 

②Police can use software（软件）to age photos of missing people，but it seems to work best in adults

③Unlike adults ，the faces of children change greatly as time goes by，and matching photos of found children to old images（画像）（数据库）of missing children is difficult. "Even with a recent face image of a child，it is quite hard for a human to recognize（辨认），who the child is from a large data set of child face images，" says Debayan Deb at Michigan State University. 

④Now Deb and his teammates have created an algorithm（算法）to work out the problem. They created a face﹣recognition algorithm on data sets，which have images of nearly 1

⑤AI learned to match recent photographs of children with images taken 2. 5 years earlier. The correct matching rate can be 80 percent. With one year between the two photographs，it was 90 percent correct at recognizing faces. This dropped to 73 percent after three years. The new AI might help to improve accuracy （准确性）of this kind of software

⑥Deb's next goal（目标 ）is to make the age gap wider. His team also hopes to develop an app to fight against the sale of children. 

Mr. Wang is a teacher in our school. He teaches us English. He walks to work every day. 

Ten years ago, I took up studying luck. I wanted to know why some people are always in the right place at the right time, while others always experience ill luck. Many people volunteered for my research. Over the years I interviewed them, watched their lives and had them take part in my experiments(实验).

I carried out a simple experiment to discover why there were differences in their ability to find lucky chances. I gave both lucky and unlucky people a newspaper and asked them to look through it and tell me how many photographs were inside. I had secretly placed a large message halfway through the newspaper saying, "Tell the researcher you have seen this and win $50." This message took up half of the page and was more than two inches(英尺) high. It was looking at everyone straight in the face, but unlucky people tended to(倾向于) miss it and lucky people tended to notice it.

Unlucky people are just more nervous than lucky people. They are busy looking only for what they need and this stops them from noticing the unexpected. As a result, they miss out on chances. Lucky people tend to be more relaxed and open. They can see everything that is in front of them, rather than just what they are looking for.

My research shows that lucky people live by several principles(原则). Here are some of these principles:

* Listen to your gut instincts(直觉) — they are often right.

* Be open to new experiences and break your normal thought patterns.

* Spend a few moments each day remembering things that went well.

* See yourself being lucky before an important meeting or phone call.