If you had billions of dollars, would you donate almost all of it to charity? Well, that's what Mark Zuckerburg, CEO and founder of Facebook, just said he would do.
    Zuckerburg and his wife Priscilla Chan promised to give 90% of their Facebook shares to society. Right now that is about $45 billion, and they plan to donate the money to things like science and education.
    Many billionaires have done similar things. Bill Gates, creator of Microsoft, made The Giving Pledge, an activity in which billionaires promise donate more than half of their wealth to charities. This started in 2010, and now 139 people from 15 countries joined it.
    But giving back and helping others isn't just for big billionaires. People like Zuckerberg, and Gates may have more to give, but people with less are doing it, too.
    Especially around the holidays, people want to do their part and give back to people who are less lucky than them. Schools may have food collections where people bring a few food items, and together they can make a big donation to places like homeless people's homes.
    People also host special events like concerts of runs to be creative while raising money. Regular people donate whatever they can to US charities like the United Way and the American Red Cross.
    Then these charities are able to help US communities in different ways like education, health and improving the lives of the poor. These individual donations come together to make a big difference.

Many people love reading. Some successful people will {#blank#}1{#/blank#}(建议) you reading because they think you can learn {#blank#}2{#/blank#}(某些事) new and have a {#blank#}3{#/blank#}(强大的) {#blank#}4{#/blank#}(精神) by reading books. Recent {#blank#}5{#/blank#}(研究) have {#blank#}6{#/blank#}(表明) there are {#blank#}7{#/blank#}(几个) hidden benefits to reading regularly.

The physical benefits of reading include strengthened(加强) brain connections and reduced {#blank#}8{#/blank#}(紧张) levels. {#blank#}9{#/blank#}(科学家) have discovered that many different areas of the brain are at work when {#blank#}10{#/blank#}(有的人) gets involved in a story (故事). This brain activity {#blank#}11{#/blank#}(有时) can continue for many days. In fact, {#blank#}12{#/blank#}(花费) 30 minutes reading every day can lower one's blood pressure and heart rate.

On top of that, reading books is one of the {#blank#}13{#/blank#}(最简单的) ways to improve our vocabularies and understanding of others. When we read a book, we are improving our language {#blank#}14{#/blank#}(技巧). Reading can also {#blank#}15{#/blank#}(塑造) our thinking about the world. This helps us to develop the ability to understand and {#blank#}16{#/blank#}(满足) the needs of someone else. Even though reading is a {#blank#}17{#/blank#}(单独的) individual(个人的) activity, it can actually improve our {#blank#}18{#/blank#}(社会的) skills, such as talking with strangers or dealing with different {#blank#}19{#/blank#}(情况).

{#blank#}20{#/blank#}(有些) people believe that reading books can also make us more{#blank#}21{#/blank#}(特别的) and {#blank#}22{#/blank#}(更聪明的). When we meet a new person, we often talk about {#blank#}23{#/blank#}(相似的) interests, like books, movies, and {#blank#}24{#/blank#}(运动). It is{#blank#}25{#/blank#}(认为) that people feel more interested in those who read because it is a {#blank#}26{#/blank#}(信号) of intelligence(智力). Nowadays, readers can make exciting connections through a{#blank#}27{#/blank#}(分享的) interest in books on the platforms. So you will not alone.

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China's Four Great Literary Classics

Discount ( 打折 ) on June 18th

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Wuxi City in eastern China's Jiangsu Province is known as the 'Home of the erhu" because it is the birthplace of many erhu masters.  Looking around Wuxi，you can often hear the beautiful sound of the erhu. The erhu was called the huqin at first, a musical instrument of ethnic(种族的)groups in northern China，and it dates more than a thousand years back to the Tang Dynasty. In modern times，with the development of operas, the huqin was renamed the erhu and it slowly spread throughout China. 

The erhu plays a leading role in many Chinese folk orchestras(管弦乐队)just as the violin does in Western orchestras. They are both made up of a body，a bridge，strings(弦)and a bow(弓). 

The performer usually holds the erhu straightly on the leg,▲and pressing the strings with his fingers, while drawing the bow with his right hand. As the bow runs against the strings and touches and shakes them, beautiful music comes. 

Not limited (限制)by just two strings，a good player can give the erhu amazing emotional expressions. It can present both soft, lovely songs and sad music. Sometimes it gives a human crying voice, and sometimes a great horse-running sound. 

Today, as a folk instrument, the erhu has been used more widely by communicating with Western musical instruments. In many international concerts, the erhu can be seen playing with different Western instruments, such as the piano，violin and guitar. This performance form not only adds new possibilities to music creation，but also brings richer enjoyment to the listeners. 

Doorbells are the bells（铃）for people to ring at a door. When someone hears it, he or she can open the door. Do you know that you can ring a doorbell for fish, too?

Every spring, millions of fish migrate（洄游）along the river in the city to find better places to lay eggs. But in the river, there are many locks（水闸）. They stop fish from swimming through. Weerd Lock is in Utrecht, the fourth largest city in the Netherlands. When fish get there, they have to wait a long time before the lock opens for boats to pass through. The lock keeper there is glad to open the lock for fish, but he cannot tell when fish want to get through. So in 2021, Mark a scientist, came up with a good idea to help solve this problem— by using the fish doorbell.

Under the water near the lock, there's a camera. People from around the world can visit a website to see fish through the camera. When you see a group of fish waiting, you can ring the doorbell on the screen. And when the lock keeper notices it, he will open the lock for the fish.

In its first spring season in 2021, people around the world rang the fish doorbell more than100,000 times. If you want to join them to help fish, visit the website and ring the fish doorbell next spring!