Beautysleep is a real thing, researches have shown that people who have enough sleeplook more attractive (有魅力的) to others.

    A few badnights are enough to make a person look especially "more ugly", theirsleep experiments show.

    Theresearchers asked 25 university students to join in their sleep experiment.They were asked to get a good night's sleep for two nights.

    A weeklater, they were asked to sleep for only four hour every night for two nightsin a row. The researchers took make—up free (素颜) photos of the volunteers afterboth the good and the bad sleep.

    Next, theyasked 122 strangers to have a look at the photos and judge (评价) them on attractiveness, health,and sleepiness, as well as asking them: "How much would you like to makefriends with this person in the picture?"

    Thestrangers were good at judging whether the person they were looking at wastired, and if he was sleepy, his attractiveness score would be low.

    Thestrangers also said they wouldn't want tosocialize with the tiredstudents. The researchers say this is natural for people. An unhealthy-lookingface makes people run away. In other words, people don't want to hang aroundwith people who might be ill.

    Dr Brewer,an expert at the University of Liverpool said: "Judgment of attractivenessis often unconscious (无意识的), but we all do it, and we are able to judge on even somethingsmall like whether someone looks tired or unhealthy. This study is a goodreminder of how important sleep is to us."

Computers make people's lives really easy. People can use their computers for working, {#blank#}1{#/blank#} (shop), or playing games. Laptop (笔记本) computers make people's lives even {#blank#}2{#/blank#} (easy) as people can take laptops anywhere. They can work, shop, or play games any place {#blank#}3{#/blank#} any time. {#blank#}4{#/blank#} there is a problem with laptops. People can {#blank#}5{#/blank#} (burn) by them!

People who sit with laptops on {#blank#}6{#/blank#} (they) legs for hours and hours have noticed they get dark marks on their legs. The hot laptop is toasting the skin. {#blank#}7{#/blank#} (doctor) have noticed more people show up with "toasted skin syndrome (综合症)". The marks are not {#blank#}8{#/blank#} (danger), but they look strange because they are just in one spot on people's legs.

Companies that make computers tell people not {#blank#}9{#/blank#} (let) warm computers touch bare skin for a long time. Wearing pants and putting a laptop's case under the laptop is {#blank#}10{#/blank#} (usual) enough to protect one's skin from the computer's heat.

Is it difficult to learn English well? For many Chinese students, the answer might be "Yes". Some still find it boring, {#blank#}1{#/blank#} they know English is important. Here are some ideas on how to learn English well.

To warm up, listen to English as often as possible. You can find {#blank#}2{#/blank#} materials from tapes, radios or TVs. If you can't hear them clearly, try a {#blank#}3{#/blank#} time. With English around, you will feel much easier to get started.

When you are learning new words, deal with your {#blank#}4{#/blank#} and feel free to pronounce them. Normally, you can {#blank#}5{#/blank#} get the pronunciation correct if you just keep silent without opening your mouth. Besides, some apps on the mobile phone can help with your spoken English practice. After you complete the tests, they can even show {#blank#}6{#/blank#} to tell how well you can pronounce.

What's more, you can watch English movies. There are tons of English movies {#blank#}7{#/blank#}Spider Man and Captain America. You are sure to get interested in them. Listen to the characters carefully and learn useful English expressions. If you {#blank#}8{#/blank#} to understand, try to connect them with the actions of characters. This will help {#blank#}9{#/blank#} guess what they mean.

All in all, there are many ways to learn English well and you just need to find the best way for yourself. Remember that everyone {#blank#}10{#/blank#} the skills to learn a language well. Always believe that you can make it.

If you've ever seen elephant seals(象海豹) lying on a beach, you might think all they do is sleep. But now scientists have discovered that when elephant seals are in the ocean, they hardly sleep at all. They just sleep for about two hours a day. 

Even though elephant seals are large animals, they have to be careful in the ocean. Near the surface(水面), predators like sharks and orca s are a danger. So elephant seals spend most of their time diving(潜水) deep underwater, looking for food. Usually, they will dive for about 30 minutes, then come up for air for just a couple of minutes before diving again. 

Scientists have wondered how elephant seals can sleep while they're at sea, since they are almost diving all the time. Animals like dolphins and sea lions have a special way. One half of their brain can sleep, while the other stays awake. But elephant seals are like humans- both halves of the brain need to go to sleep at the same time. So how do they sleep? 

To find out, a scientist named Jessica Kendall- Bar did a research. She created a special cap that could record the elephant seals' brain activity. The cap also collected information on the elephant seals' heart rates, how their bodies were moving, and how deep they were. Dr. Kendall- 

Bar and her team put the caps on thirteen young female elephant seals. 

The scientists learned that elephant seals steep in short times while they are diving. They only sleep for about 10 minutes at a time. They wake up in time to go up for more air. The scientists found that elephant seals only sleep for about two hours a day when they're in the ocean. That means that the rest they get once they return to land is very important, which helps them have energy again. Back on land they sleep for about 10.8 hours a day 

The researchers hope that their work will help to protect the places where elephant seals sleep when they're on land. 

Ben isn't happy. His sister has a cold and his grandparents need to look1 her. There is 2 food at home，so his mom goes shopping and he has to go，too. He walks with his mom to their 3 . It is a fine day，so his mom puts the roof（车顶） down. Ben's hair is blown（吹） by the wind. It's fun and Ben begins to sing4 . 

Mom5 the car and they go into the store. Shopping takes a long time because Mom buys a lot of food. When the 6 is done，Ben helps his mom put the bags in the car. Then he gets into the car. 

"Good boy. You are very 7 ，"says Mom "Do you want to have an ice cream？""Yes，please，"says Ben happily. 

When they get to the ice cream 8 ，they find there are many flavors（口味）. Ben doesn't know what to eat "9 ，"says Mom， "This is taking you longer than the shopping. "Ben takes the strawberry flavor. It is nice. 

Ben finds that shopping isn't so10 . He feels very happy not only because he has some ice cream，but also because he can help his mom when shopping.