The world is our only home. Doing small things can make the world a better place. Here is some advice to you.

Give someone a book you once read. Once the person takes the book and finishes reading it, you can talk about the book with him. 【小题1】 They’ll probably feel uncomfortable.

Say something nice to someone. Tell the person how much you like his job, new clothes, singing and so on. 【小题2】 Just let someone know that something he is doing works.

【小题3】 Draw a picture or make a delicious cake for someone. Like giving someone a book, it tells the person that you are thinking about him and want to do something nice for him. Maybe the person will respond（回应）, and maybe not. That’s not important. 【小题4】

Teaching someone how to do something. Share your talent with a person by showing him how to do something. 【小题5】 Have patience and respect the person.

Anything that shows people you care about them will make the world a better place. Don’t wait and just do it now.

It’s the night before a big test. After you’ve spent many hours studying, your eyes have gotten heavy. Will you go on studying for the exam or go to bed instead?

Before we talk about this given case, let’s first discuss the following questions. How do we remember what we have learned? And what can make learning easier for us?

When we come across new knowledge for the first time, our brains (大脑) usually store (存储) this information in our short-term memory. How can we make it move into our long-term memory more quickly? One way is to expose (使接触) ourselves to this knowledge again and again. In other words, review your lessons! Another way is to connect (联系) this new knowledge with information we’ve learned before. Either way can help our brains learn and remember the new knowledge better.

Our brains can get tired, though. Take a break after keeping it busy for an hour or so. A good rest can help our brain perform better. For this reason, going to bed early before an exam may be more helpful to us than burning (燃烧) the midnight oil.

Of course, studying for an exam should begin much before the “last night”. You’d better try to spread out the work over several days or even longer. Try to go over what you have learned each day and connect the new information with your background knowledge. You will find it much easier to learn!