阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。-优题课

Keeping a diary in English is one of the most ______(eff ect) ways to improve our English writing ability. ________ (compare) with other forms of writing, it is shorter and takes _______(little) time. It can help us to develop the habit of thinking in English. ______ we persist in this practice, gradually we’ll learn how to express ourselves in English. I n keeping a diary in English, we certainly run up against many _________. （difficult）In the first place, _______ often happens that we have trouble finding appropriate words and phrases to give expression to our mind. Secondly, there are many idiomatic ways of saying things in Chinese. And it is extremely hard for us to put them into English properly. As far as I ________ (concern), my _______ (suggest) is that we should always have a notebook and a Chinese-English dictionary within easy reach . Whenever something g beats us, we can first put it down in our notebook and then consult our dictionary. We can also turn to our English teacher for help, if necessary. In short, I believe that it is ______great use to keep a diary in English for _______ development of our writing skills.

Long ago, in a far-away place, an old tribal chief found himself terminally ill. So he called three most promising young villagers to his bedside and said, “As I(leave)you soon, I hope you can do one more thing for me. Young men, you three are all(usual)strong and resourceful, so I’d like you to strive to climb that high mountain we have always been worshippinga sacred place. Try to reach the top and then turn back to tell me about your findings.
Three days later, the first young man returned smartly dressed and said(smile), “Lord, I’ve been to the mountaintopI saw flowers of all sorts, spring water and singing birds. That’s a real nice place. ”
The old tribal chief replied with a smile, “Son, I’ve been there before. It’s not the mountaintopthe foot of the mountain. You can leave now. ”
A week later, the second young man also returned. “Lord, I’ve been to the mountaintopa forest of tall pine trees and vultures circling in the air. That’s a really nice place. ”
“What a pity! ”said the chief. “Son, you’ve been halfway up the mountain rather than to the summit. Now you can leave. ”
A month later, the third young man showed up in rags, his hair off-colored but his eyes clear and bright.
“Lord, I succeeded in reaching the summit. There was nothing there but the highland wind and the blue sky(hang)over the land. ”
“So you saw nothing at all? Not evenbutterfly? ”
“No, Lord, nothing. All you can see is yourself. You just feel how insignificant you are in this infinite universestanding at the top! ”
“Son, you’ve reached the real mountaintop. Congratulations! You will be undoubtedly made our new tribal chief! ”

I have found that spreading kindness is not always aboutyou do for someone, but it can also be what you say. One day I was standing in line at the gas station. Ahead of me were other people. of them had a smile on their face and they all seemed to be in a hurry .After the cold ,snowy winter, we were having a warm, sunny day. I wanted to cheer them up, so I spoke up and said, “I don’ t knowone of you ordered this fantastic day for us, but l want to say I really appreciateand thank you .”After that, the five of us smiledwe started talking to each other. What I had said madebig difference to everyone’s day. You can see that it is much easier to spread kindnesswords.

Being able to learn to relax can be very important, especially if you have a stressful life. When you build up too much tension without being able to control or release it, over time, can develop some serious health problems.
If you want to learn to relax, one simple way is to remind yourself that most of the things that we worry about never even happen. It is good to think ahead to make sure that future problems don’t show up, many people spend a lot of time worrying about things that are totally out of their control. Learn to relax by only focusing on things you control. Relaxing doesn’t always mean sitting back and doing anything. If you have things to do, you can do them in a relaxed manner.
You can still relax and do all the things you need to do. Just you have demands and responsibilities, it doesn’t mean you have to do everything in stressed manner. The key is to simplify your life. Just relax by focusing the moment.

阅读下面材料，在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。
The truthtrees are vital to our life is not a secret. They provide us with food, wood and most (important), oxygen. Now there is one more thing we can add to this list—blocking out harmful bacteria from water.
The discovery (make) by a team (consist) of scientists from the Massachusetts Institute of Technology (MIT) and high school students were seeking a natural water filter—one that would help communities in developing countries that do not have (accessible) to modern water filter systems.
The(research), led by Professor Rohit Karnik, decided to turn to trees for help because they could allow liquid to flow through, while blocking out air bubbles.
They began by cutting 1.5-inch-wide sections of tree bark from the branches of a white pine tree. The people related then tested the wood’s filtering ability by pouring water containing red dye particles of different sizes through.their amazement, they found that it was effective in trapping all the articles.(encourage), the team conductedexperiment, this time with water that contained bacteria. Sure enough, the sapwood held back 99% of the bacteria, allowing only 1% to flow through.