Read the following article and answer the question. Article: Our environment is being polluted faster. Man's present efforts cannot prevent it .Time is bringing us more people, and more people will bring us more industry, more cars, larger cities and the growing use of man-made materials. What can explain and solve this problem ?The fact is that pollution is caused by man ----by his desire for a modern way of life. We make "industrialization "our main aim. So we seem to be ready to give up everything: clear air, pure water, good food, our health and the future of our children. Large numbers of people are moving from the countryside into the cities, looking forward to the modern life. But as our world has developed so fast in the last twenty years, pollution has become a serious problem. Isn't it time for us to stop to ask ourselves where we are going-----and why? It makes one think of the story about the airline pilot who was heard over the loudspeaker, "I've some good news and some bad news. The good news is that we're flying at 530 miles per hour. The bad news is that we're lost and don't know where we're going." The sad fact is that this becomes a true story when we talk about our modern society. Question: The story about the airline pilot tells us that _ . Answer:
OPTIONS:
- man knows where the society is going
- people do not welcome the fast development of modern society.
- man can do little about the problem of pollution.
- the writer is worried about the future of the our society

Answer: the writer is worried about the future of the our society

Question: Read the following article and answer the question. Article: When we talk about instant messaging tool, which will be the first one jump into your mind? If your answer is QQ or MSN, I must say you're a bit old fashioned. Today, Wechat is becoming the most popular text and voice messaging tool all over the world. It has had 700 million registered users all over the world up to now. It has a Chinese name Weixin, it is necessary for the young people in China to have the communication tool. Actually, it is also a new product from Tencent ,so we can call it QQ's little brother. You can log in to Wechat with your Facebook account or _ with your phone number, and then add your friends' number in your contact list , by which you can chat with your family of friends in a brand new way by using your phone no matter when and where you are. It's just like using a walkie talkie (two way radio).But you don't need to worry about other things, such as basic fees. It won't cost you extra money to make conversations. You can also only need three steps to finish calling others through Wechat. It is free for ten minutes. If you want to make a phone call again, you need to pay for it through a credit card. Someone thinks the sound in the phone is not clear. There is some noise in it. It is not safe for the user. So you should pay attention to your personal information and not share it to others. Question: Which of the following is NOT true about Wechat? Answer:
OPTIONS:
- It is a messaging tool.
- It is used in the phone.
- You can't do anything except making a call.
- You need to add your friends' number in your contact list before chatting with them.
Answer: You can't do anything except making a call.

input with options: Read the following article and answer the question. Article: Everyone dreams of changing the world. But can teenagers really make a difference? And how can they go about it? Michael Norton's book 365 Ways to Change the World is a good starting point. The book gives an idea or task for every single day of the year. The tasks include offering to work at a local homeless shelter and planting a tree. The book says that one simple act, no matter how small, can help someone in need. It may even influence other teens to do something. Nathan Anthony, a student at Maple High School in Modesto, California, US, agrees. "It is impossible to get anything in life without giving something to someone or working hard at school or workplace," Anthony said. Another Maple student, Ariane Mota, has the same idea." Giving is our way of repaying those who help us," she said." Whether it is a helping hand or a donation, we should help others to make their day or life better." But how often do teens see peers helping a stranger or doing something nice for someone? According to Anthony, not a lot. He and Mota both believe this needs to be changed. "I help my friends by telling them that their lives are better than those poorer people," Anthony said." Humor is also a great tool." So whether you're helping to find a cure for bad illness or simply smiling at a stranger, do something every day to help change the world for the better. Question: From the article, we know _ . Answer:
OPTIONS:
- Michael Norton dreams of changing the world most
- only great acts can influence other teens to do something
- Nathan Anthony and Ariane Mota are both teenagers at Maple High School
- humor does not belong to what teenagers should do to change the world
output: Nathan Anthony and Ariane Mota are both teenagers at Maple High School

Question: Read the following article and answer the question. Article: You can't see any object unless light from that object gets into your eyes.Some of the things you see give off light of their own. The sun,the stars,a lighted lamp are the examples that can be seen by their own light.But most of the things you see are not giving off light of their own.They are just reflecting light that falls on them from the sun or some other luminous bodies.The moon,for example,doesn't give off any light of its own.It is not 1uminous.You see it because sunlight falls on it and some of the sunlight reflects on the earth.So moonlight is only second--hand sunlight. When you look at a book,it sends some of the light which fails on it to your eyes,and you see the book.If light could be kept out from where you're so that there would be no light from the book to reflect.Then you couldn't see the book even with your eyes wide open.Light travels so fast that the time in which it travels from the book you're reading to your eyes is as short as if there were no time at time.Light reaches us from the moon,which is about 380,000 kilometres away,in only a little more than a second. Question: Which of the following is TRUE? Answer:
OPTIONS:
- All the things you can see give off light.
- Light from the book is much faster than that from the moon.
- The moment you open your eyes,the light from the book travels to your eyes.
- Light travels so fast that there is no time for you to read.
Answer:
The moment you open your eyes,the light from the book travels to your eyes.