A few people have lucid (清醒的) dreams, in {#blank#}1{#/blank#} the dreamer is aware they're dreaming and can control the experience. Some others can learn {#blank#}2{#/blank#} (have) lucid dreams. The practice can be used to deal with frightening dreams. However, its potential has been limited by it often {#blank#}3{#/blank#} (be) so hard to achieve. Now, researchers have developed the most effective method yet for promoting lucid dreams.

    The researchers let 121 adults aged 19 to 75 pick something {#blank#}4{#/blank#} (see)in a previous dream. It was called a "dreamsign" that can serve {#blank#}5{#/blank#} a reminder to become lucid when met again. The {#blank#}6{#/blank#} (volunteer) were then handed capsules. Each person got a high-dose (大剂量的) capsule, a low-dose capsule and a placebo (无效对照剂) capsule, but they couldn't tell which was which. On three occasions, they woke in {#blank#}7{#/blank#} middle of the night, took a capsule, imagined their dreamsign and went back to sleep. The high dose was most effective, causing lucid dreams in 42 per cent of participants. About 27 per cent {#blank#}8{#/blank#} (report) lucid dreams with the low dose and 14 per cent after taking the placebo capsule.

    The potential applications are {#blank#}9{#/blank#} (excite). "This new method has the success rate we need to be able to {#blank#}10{#/blank#} (proper) do research on lucid dreaming," says Denholm Aspy at the University of Adelaide in Australia.

    One day, Daily dreamed {#blank#}1{#/blank#} dream. She flew in a wonderful carpet and talked with an antelope in Tibet. The antelope told her they {#blank#}2{#/blank#} (hunt) because of their fur {#blank#}3{#/blank#} can be used to make sweaters for people like hers. In the future they may all may die {#blank#}4{#/blank#}. Later, she flew to Zimbabwe {#blank#}5{#/blank#}, she talked with an elephant and got {#blank#}6{#/blank#} (know) the farmers there no longer hunted them. That's {#blank#}7{#/blank#} the government decided to help and the farmers {#blank#}8{#/blank#} (final) made a lot of money from the tourism , At last she arrived at the thick rain forest where a monkey told her "No rain forest , no animals {#blank#}9{#/blank#} no drugs." Although everything had gone, she had learned {#blank#}10{#/blank#} much!

    Digital receipts offer a few improvements over {#blank#}1{#/blank#}(tradition) paper receipts. One is health-related. Lots of receipt paper contains bisphenol—A, or BPA. This chemical can completely influence or outright change some bodily processes, like hair growth, hormone function and cell repair. {#blank#}2{#/blank#} (reduce) receipt paper reduces the risk for BPA exposure for not only consumers but also for employees who handle the paper {#blank#}3{#/blank#} a more routine basis.

    Another reason why digital receipts are better just boils down to {#blank#}4{#/blank#} (convenient). You can access those receipts through your email and file {#blank#}5{#/blank#} (they) away in a separate folder or with a specific label for easy sorting. Or, if you need more help on the organization front, try a receipt tracking app. Physical receipts require you physically {#blank#}6{#/blank#} (keep) track of them, and that means a shoe box or an accordion folder or a big thumb tack on a cork board in the kitchen. There have been times when I've let something go unreturned {#blank#}7{#/blank#} I didn't have the receipt. I'm betting I'm not alone on that.

    Some businesses, particularly local ones, use newer point of sale systems like Square that will {#blank#}8{#/blank#} (automatic) send you a digital receipt if you've already received one from another business that uses Square. When you pay with the same credit you did at the first seller, and you've already provided {#blank#}9{#/blank#} email address to the Square system, you {#blank#}10{#/blank#} (get) a receipt in your email minutes later.