Giraffes are beautiful, smart and friendly. They have long legs and necks (脖子). They are so tall that they can grow up over 5 meters (米). So how do they sleep or drink?

    You may think it's difficult for them to sleep, but they have no such problems because giraffes don't often stop for a sleep. Giraffes just need to sleep about thirty minutes a day. When they sleep, they don't always lie down (躺下). They usually sleep for minutes at a time, because it's difficult for them to get up again. And it's a great danger to sleep in the wild (荒野). But the giraffes in the zoo sleep for about 4-6 hours every day. They usually lie down when they sleep.

    Drinking water is a big problem for giraffes because their long necks are too "short". To drink water, they must spread (伸展) their front legs in a difficult way. And in this way, other animals like Africa's big cats can easily hunt (猎食) them. So they usually get most of their water from the trees and flowers. Giraffes don't need to drink water very often. They can even drink no water for months!

What should mobile phone buttons(按键) look like? What are Shakespeare's artistic achievements? {#blank#}1{#/blank#}

As new technologies continue to develop, many students are choosing to study STEM subjects (science, technology, engineering and math) so they can get good jobs later. {#blank#}2{#/blank#}They need ideas from artists, historians and sociologists(社会学家)— in other words, people who major in liberal arts(主修文科). 

Learning how to program is not enough. The US writer Scott Hartley mentioned it in his book. {#blank#}3{#/blank#} He points out that soft skills, including communication, collaboration(合作) and understandings of social problems, are of equal importance. 

One possible solution is to put liberal arts and STEM studies together. In fact, Lewis University in the US has started to offer a set of courses called " CS + X".{#blank#}4{#/blank#} At the University of Vermont, a program called Engineering Management connects engineering with business. Engineers need to understand markets while business people need to learn engineering. 

{#blank#}5{#/blank#}Only when we know this, can we create the greatest technology with humanity. 
 

You may know about "junk food" like French fries. But do you know about "junk sleep"?

Recently, a British survey found that electronic products（电子产品）in teenagers' bedrooms are affecting（影响）their sleep.

The survey was done among 1,000 British kids from 12 to 16. It found that 30 percent of them got just 4 to 7 hours of sleep every day. But doctors say they need 8 to 9 hours.

Almost a quarter of the kids said they fell asleep more than once a week while watching TV, listening to music or using other electronic products.

"This is very worrying. " said Dr Chris Idzikowski, "We call it ‘junk sleep', It means you don't get enough sleep and the quality(质量) of the sleep is bad, too. If you don't get good rest, you don't perform well in school the next day. "

The survey found that 40 percent of the kids felt tired each day, with girls between 13 and 16 feeling the worst. Nearly all the teenagers have a phone, Mp5 or TV in their bedroom. And many of them have all three.

When we talk about reading, we probably think of eyes, because we do the reading with eyes. Many years ago, some people {#blank#}1{#/blank#} (wonder) whether they could do some reading with ears or not. And now their dream has already come true. With the development of smartphones, it's getting much {#blank#}2{#/blank#} (easy) to do some reading with ears. This is audio reading.

Many people think reading in bed before going to sleep is {#blank#}3{#/blank#}(help) to have a good sleep and it would be a perfect time to do some audio reading. When they read an ordinary book, the lights have to be turned on and they have to turn the pages with their{#blank#}4{#/blank#} (hand）while they don't need to do that when they do audio reading instead.

Also, some other people would like to do audio reading in the kitchen. They can enjoy their time by{#blank#}5{#/blank#}(listen)to the news or stories while cooking. They find it interesting{#blank#}6{#/blank#} (cook) according to instructions that are made{#blank#}7{#/blank#}famous cooks. Audio reading is some people's favorite while they are exercising. It allows the mind to be free while the legs, body and arms are kept busy. But be careful. Don't make yourself or others in danger. Let's take driving for example. If you pay no attention to{#blank#}8{#/blank#} (drive) but lose yourself in doing audio reading, you may cause a traffic accident.

Finally, audio reading is{#blank#}9{#/blank#} (true) helpful to blind people. It was difficult for them to read in the past. But now they can do it easily. What {#blank#}10{#/blank#}interesting way to read! 

Here is some advice for you to become a good student at school. 

Go to school on time. {#blank#}1{#/blank#}If you are late, you will miss some lessons. It's bad for your study. The teachers will be angry with you, too. So remember to go to school on time. 

Follow the school rules. Do not break the school rules. For example, you can't sleep in class.{#blank#}2{#/blank#} Don't fight with your classmates, and you should be friendly to your classmates and your teachers. 

Prepare (准备) for lessons before class. If you want to know what you will learn the next day, you'd better prepare for the new lessons. It is good for your study and it can help you get good grades. {#blank#}3{#/blank#}It will help you with your problems.

{#blank#}4{#/blank#}They are good for your balanced development (均衡发展). For example, playing sports can make you be good with your classmates. It can also make you healthy.

What's your idea for being a good student? {#blank#}5{#/blank#}