Read the article and select the best answer. Article: In America, seldom do you go anywhere without hearing a principle called WIN-WIN. It sounds strange to me at first because throughout my childhood, I have always been taught to try everything possible to win an upper-hand, rather than to help other people win. However, as time goes by, I have gradually understood the essence of WIN-WIN principle--it is the way of winning on both sides. When I was little, I used to play Chinese checkers which includes two basic tactics : One is to create paths for yourself; the other is to prevent your rival moving. Players may use these two totally different ways in the game, but the key for the player to win is to continuously create paths for him even if his rival may take advantage of it. Finally he can always reach the goal a few steps ahead of the other player. In the 1990s, a strategy called WIN-WIN became widespread in the western world. Its aim is to achieve your success while giving other people some advantages, so there is no real loser. One example of using the WIN-WIN principle is the voluntary system in the US. Most Americans support the spirit of voluntary contribution. In the US, schools and children organizations usually encourage and support kids to take part in community activities so that the voluntary spirit can be _ in their minds from childhood. In China, it's quite usual that some people are too selfish and never take people's interests into consideration, while someone who really has courage to do something for the public is often called "foolish" or "silly". Actually helping other people can be of great delight for the helper, for he can also learn something useful for his life such as sympathy, care, devotion, etc. So only if you take other people's interests into consideration , you can make sure to win what you want. Question: The purpose of the author in writing the passage is _ . Options: A: to tell us the cultural differences between China and the US. B: to tell us the different educational systems in the US and China. C: to tell us the importance and meaning of WIN-WIN. D: to show that WIN-WIN is popular in the US and China.
C

Read the article and select the best answer. Article: When most people think of the Olympics, they don't think of science. But in the USA, each year, students take part in a kind of competition called the Science Olympiad. It has a lot of different events. Students go there to show how much they know about the science of music, biology, chemistry and others. My best event is forestry . This time, I went to the Olympiad with my school's team. We had worked hard, but this was the state competition. It would be hard to win. The Olympiad was out of town, so we got to ride on a bus and stay in a hotel for a night. The Olympiad was in three big rooms. When we got there, we set up our team's "camp" off to one side. The big day had come at last! First, I went to watch the tower building competition. That's when students build small towers and put heavy things on top of it. They hope they can hold them up. One of my schoolmates was putting things on her tower. She was nervous, and in the end it was too heavy for her tower to hold it--it broke! I felt bad for her. After lunch, I helped some teammates with their events. One was geography, and the other was history. I don't know much about those things, so I just watched my teammates do most of the work. At last, it was time for my favorite event--forestry. Another student was also in the forestry event. The rules were easy. We had to look at more than 40 different kinds of leaves and find out which plants they were from. We also had to answer some questions about the uses of each leaf. I knew almost all of the leaves and could answer most of the questions. I had spent more than a month studying on the Internet to get ready. At the end, it was time for the awards , I was nervous, because the forestry awards were last. We won second place in the whole state! A nice man gave me a medal and smiled at me. I had a great time at the Science Olympiad. I can't wait for next year! Choose the best answer according to the passage. Question: We know that _ . Options: A: you know a lot about biology if you're good at forestry B: it's the first time for the writer to be in the competition C: the writer had to do some experiments in the competition D: the state competition lasted several days
B

Read the article and select the best answer. Article: Do you know why different animals or pests have their special colors? Colors in them seem to be used mainly to protect themselves. Some birds like eating locusts. but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night. If you study the animal life, you'll find the main use of coloring is protecting themselves. Bears, lions and other animals move quietly through forests. They cannot be seen by hunters. This is because they have the colors much like the tree. Have you ever noticed an even more strange act? A kind of fish in the sea can send out a kind of very black liquid when it faces danger. While the liquid spread over, the enemies cannot find it. And it immediately swims away. So it has lived up to now though it isn't strong at all. , . Question: From the passage we learn that locusts _ . Options: A: are small animals B: are easily found by birds C: are dangerous to their enemies D: change their colors to protect themselves
D