The world is not only hungry, but also thirsty for water. This may seem strange to you, since nearly 70% of the earth’s surface is covered with water. But about 97% of this huge amount is sea water, or salt water. Man can only drink and use the other 3%—the fresh water that comes from rivers, lakes, underground and other sources (来源), and we cannot even use all of that. Even worse, some of it has been polluted.

However, as things stand today(以目前的情况来看), this small amount of fresh water is still enough for us. But our need for water is increasing quickly—almost day by day. We should take steps to deal with this problem now and in this way we can get away from a serious world—wide water shortage (短缺) later on.

We all have to learn how to stop wasting our precious water. One of the first steps we should take is to develop ways of reusing it. Today in most large cities, water is used only once and then sent out into a sewer (污水管) system. From there it returns to sea or runs into underground places.

But even if(即使) every large city reused its water, we still would not have enough. All we’d have to do to make use of sea water in the world is to take away the salt. If we take these steps, we'll be in no danger of drying up.

Many of us don't realize how important eye care is. It is said that if you take care of your body, then you can surely be healthy. That is why our eyes should be given a lot of care.   Then what can we do? Should we take some medicine? No. Natural eye care should be put in a number one place.

There are several causes leading to poor eyesight like not enough food, genes （基因） and age. Televisions, computers and reading are also the causes of having poor eyesight. If you happen to work in front of the computer, it is best to take a break every once in a while.   Something dirty can cause redness and they will make you feel uncomfortable. It is bad for your eyes, too. If this happens, the best way is to clean your eyes by using cold water. You must also try your best to protect your eyes from harmful things. For example, wearing sunglasses can serve as a great way to protect your eyesight from UV rays in the strong sunlight.

Some foods will do well to your eyesight. Remember that vitamins A is good for eyes. Try to eat the food that has vitamin A. And you should do eye exercises because exercise protects your eyesight, too. If a person exercises regularly and eats the right kind of food, his eyes will stay in good condition for a long time.

All above are natural ways of eye care that help us keep healthy eyes.Being happy all the time can be good to a person's eyesight, too. In a word, eye care is very important, no matter how old a person is.

Answer the following questions with no more than 5 words except.

Have you ever been bullied(霸凌) and then someone gave you a hug or asked if you’re OK? How did you feel? Offering support to people who are in trouble is an important life skill. It is also an act of kindness that will help others and can break the cycle of unfair treatment.

How to tell the difference between jokes and bullying?

It’s common for people to joke around with each other, but sometimes it’s hard to tell if someone is just having fun or trying to hurt you. Sometimes they’ll laugh it off with words like “just kidding” or “don’t take it so seriously”. But if you feel hurt or think others are laughing at you, then the joke has gone too far. If it continues even after you’ve asked the person to stop and it even makes you feel really upset, then this could be bullying. Remember, if you are not happy about someone’s “joke”, there’s no need for you to stand it.

Anti-Bullying Week Anti-Bullying Week is an event that aims to raise awareness(意识) of bullying and provide ways of preventing and dealing with it. Year Date Theme 2020 Nov. 16-20 United Against Bullying 2021 Nov. 15-19 One Kind Word 2022 Nov. 14-18 …

The Difference Between Jokes and Bullying

What can I do to help someone who is being bullied?

Being an ally(支持者) is one way you can help. An ally is someone who is willing to stand up for what is right and support those who are being bullied.

Can I really make a difference?

Yes, your support, even just one kind word, can mean a lot to the person being bullied. Martha Evans of the Anti-Bullying Alliance charity says, “It can be a turning point for someone on the receiving end of bullying.”