Treasure hunting(寻宝游戏) is not just a story from m{#blank#}1{#/blank#} or books, but can also be part of your next holiday.

Five years ago, US art collector and writer Forrest Fenn h{#blank#}2{#/blank#} a treasure box somewhere in New Mexico, the US. The box was f{#blank#}3{#/blank#} of gold coins, diamonds and other treasure. It's worth about ＄1. 8 m{#blank#}4{#/blank#} (12, 400,000 yuan), and it will go to whoever finds the box. The 84-year-old millionaire(百万富翁)7 l{#blank#}5{#/blank#} some clues(线索) in his book The Thrill of the Chase.

    Fenn said the i{#blank#}6{#/blank#} came to him after he got cancer(癌症) in 1988." I wanted the monetary value(金钱的价值) to be a consideration for those who are l{#blank#}7{#/blank#} for it, but mostly my motive(动机)was to get kids off the sofa and a{#blank#}8{#/blank#} from their texting machines and out in the m{#blank#}9{#/blank#} ."he told KOAT News in the US. Fenn said about 30,000 people came to find the box last year. He g{#blank#}10{#/blank#} that this year more than 50,000 people would come.

    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.

Scientist have developed a way to read minds, translating unspoken thoughts into written words. It's the first time it's been done without having to put anything into the brain. They used artificial intelligence (AD). It is the name given to a computer system that is able to "think" for itself and carry out tasks that usually require human intelligence. 

Scientists used a special scanner (扫描器). The machine can see where blood runs, which shows the parts of the brain that are most active. People taking part in the experiment (listened to the radio for 16 hours as their brains were scanned. The AI tool learned to connect certain brain activity with words they heard. After that, each person was asked to think of a story, and the AI tool managed to pick up these thoughts as they happened. 

The results had about a50%accuracy rate (准确率), although the AI found it hard to work out the meaning of pronouns, such as he or she, her or him. For example, it turned "I don't have my driver's license yet" into "She has not even started to learn to drive yet". It could usually understand the meaning of what someone was thinking rather than the exact words. The AI was personalized, so when it had learnt form one person but it was tested on another, it couldn't understand their thoughts. 

The scientists, who have been working on the technology for 15 years, say they understand the risks of it being used badly. Scientist Jerry Tang told a newspaper, "We want to make sure people only use these types of technololgies when they want to, and that it helps them." The scientists hope it will help people with certain medical conditions, who are still awake but have lost the ability to speak, to communicate once again. 

Cell phones are useful in our {#blank#}1{#/blank#} lives. But you should be careful not to be a noisy phone user. You are supposed to control your own behavior. Here are a few {#blank#}2{#/blank#} .

 When you are in a public place and see a sign that says"Turn {#blank#}3{#/blank#} your cell phone", don't use your phone. If you {#blank#}4{#/blank#} to answer the phone, remember to speak softly for a short time and try to keep away from other people.

 Pay attention! {#blank#}5{#/blank#} on a cell phone while driving is dangerous. According to new traffic rules, drivers who talk on a cell phone while driving will get an offence on their licenses.

A lot of animals travel from one place to another. We call this migration. 

In Africa, large animals, like elephants and zebras, migrate to find food and water. They usually follow the same ways every year. 

A lot of birds migrate to find food and better weather, too. They are usually birds that eat insects. They spend the summer in northern Europe, because there are lots of insects there. In the winter there aren't any insects, so the birds fly south to southern Europe and Africa. 

Some insects migrate, too. In North America, millions of monarch butterflies fly south to spend the winter in Mexico, California and Florida, where it's warmer. They travel 50-65 km each day and they travel about 1,125 km. 

Some fish migrate to breed (繁殖). Salmon (鲑鱼) can swim over 20,000 km in their life. They are born in rivers in Ireland, Scotland and other places in northern Europe. The young fish swim down the river to the sea and into the Atlantic Ocean. They live in the ocean until they are adults. Then they return to the river where they were born. They lay their eggs in the river and then they usually die. Salmon do this, because their eggs are safer in the river. Other fish can't eat them. 

Arctic terns (北极燕鸥) travel the furthest when they migrate. They spend the summer in the Arctic, but when winter comes they fly to the Antarctic, because it's summer there. The next year they fly back to the Arctic again. In one year these small birds travel 36, 000km from one end of the earth to the other and back again. Nobody knows how they do it.