Climate change has caused a rise in sea levels. This has increased the amount of salt in fresh water {#blank#}1{#/blank#}(use) on coastal farms. As a result, farmers are {#blank#}2{#/blank#}(gradual) unable to use fields close to the sea. However, Marc Van Rijsselberg, a farmer in the Netherlands is now using a {#blank#}3{#/blank#}(mix) of sea and fresh water {#blank#}4{#/blank#}(grow) healthy and tasty vegetables.

    He teamed up with scientists from the Free University and divided a farm {#blank#}5{#/blank#}eight negated areas. Separate pipes pumped fresh and sea water, and a computer program created water with eight levels of salinity (含盐度).

    The water levels and the levels of salinity was {#blank#}6{#/blank#}(control) by computerized measuring devices called “sensors”. Mr. Van Rijsselberg said he was able to harvest vegetables from most of the eight testing areas. He said the vegetables were smaller than {#blank#}7{#/blank#} grown in fresh water. But he said they also had more sugar and salt, so they tasted much {#blank#}8{#/blank#}(good).

    He found that potatoes grew better than the other vegetables in the combination of sea and fresh water. Mr.Van Rijsselberg said four kinds of these potatoes would be sent to Pakistan {#blank#}9{#/blank#}thousands of hectares of land {#blank#}10{#/blank#}(damage) by salinization last year.

    Experts have started working on {#blank#}1{#/blank#} unbelievable project to make a robot made by NASA act like a human.

    {#blank#}2{#/blank#}(name) Valkyrie, the robot looks like a woman and may be used to explorer Mars one day. It {#blank#}3{#/blank#} (invent) by NASA scientists to compete in the DARPA Robotics Challenges(DRC). It is 1.9 meters tall and {#blank#}4{#/blank#} (weight) 125 kilograms. It comes with a series {#blank#}5{#/blank#} cameras, sonar, and other sensors spread across its body to help it move around.

    Valkyrie is powered by a battery on its back, which can keep it {#blank#}6{#/blank#} (operate) for an hour. It can walk on {#blank#}7{#/blank#} (it) own, pick up objects and control many objects and tools, {#blank#}8{#/blank#}is part of the requirements for the DARPA challenge.

    The machine can walk on two legs and perform basic{#blank#}9{#/blank#} (move) at present. However, the team from Scotland's Edinburgh University wants to give it {#blank#}10{#/blank#} (many) skills. It is hoped that the new and improved robot will work along with astronauts in space.

    In many places like Britain and Italy, if you leave the house without your wallet, you'll be in a tough situation all day. But in China, you can enjoy your day just {#blank#}1{#/blank#} a smart phone.

    The other day, I set out {#blank#}2{#/blank#}(see) how far a phone would get me in the country's capital. Admittedly, I was surprised to discover how {#blank#}3{#/blank#}(convenience) it was.

    I used my phone to call a taxi to meet my Chinese friend,Gu Yu, {#blank#}4{#/blank#}would guide me to get around Beijing. We paid for breakfast by{#blank#}5{#/blank#}(scan) a QR code (二维码) on the window of a restaurant selling jianbing, one of China's most popular street breakfasts. My purchase cost 6 yuan and {#blank#}6{#/blank#} (take) just a few seconds. At a nearby coffee shop, {#blank#}7{#/blank#}(it) owner scanned a QR code on my phone. As we sipped our coffee,Gu Yu paid her household water bill. She used the same simple process to pay other bills and even her rent. We also paid by phone for movie tickets ,takeout food and shopping for goods for {#blank#}8{#/blank#}(deliver)

    I have known from Gu Yu that from tiny street stands to large chains, {#blank#}9{#/blank#} huge number of people accept mobile payments, {#blank#}10{#/blank#}(most) through popular apps Alipay and WeChat.