根据短文内容，从每小题A、B、C三个选项中选出一个最佳答案。

　　This summer, Chinese sports fans will be able to watch the exciting games in 3-D on CCTV．

　　When you watch 3-D movies or TV, you have to wear a special pair of glasses．The 3-D glasses make the images(影像)from the screen look like they are there in the room with you．

　　3-D, means having three dimensions(维度)：width, height and depth．3-D technology is based on the way the human brain and eyes work．Because the pupils of a person's eyes are about 6.5cm apart, when we look at something, each eye sees it from a different angle(角度)．Our eyes send the two images to our brain, and the brain puts them together．The small difference between the image from the right eye and the image from the left eye allows us to see depth．

　　When we view media such as pictures and television in two dimensions, each eye gets the same information．That is because the image has no real depth, and there is only one way of viewing it．

　　So the goal of 3-D technology is to get a different image into each eye of the viewer．It uses two film projectors(投射器)．One projects a left eye image and the other projects a right eye image．The 3-D glasses allow us to see a different image in each eye．

　　While watching 3-D films, we feel that we are actually in the same environment as the things we’re watching．However, it also has its disadvantages．The 3-D glasses make the screen look darker．What's more, people with eye problems may get headaches if they spend too much time watching 3-D movies, because their brains need to work harder to “read” the images．

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阅读下列短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。

　　A blind boy sat on the steps of a building with a hat by his feet．He held a sign which said, "I am blind．Please help me．"

　　There were only a few coins in the hat．A man was walking by．He took out a few coins from his pocket and dropped them into the hat．He then took the sign, turned it around, and wrote some words on it．He put the sign back so that everyone who walked by could see the new words．

　　Soon the hat began to fill up．A lot more people were giving money to the blind boy．That afternoon the man who had changed the sign came to see how things were．The boy recognized his footsteps and asked, "Are you the one who changed my sign in the morning? What did you write? "

　　The man said, "I only wrote the truth．I said what you said, but in a different way．"

　　What he had written was, "Today is a beautiful day, but I cannot see it．"

　　Do you think the first sign and the second sign were saying the same thing?

　　Of course both signs told people the boy was blind．But the first sign simply told people to help by putting some money in the hat．The second sign told people that they were able to enjoy the beauty of the day, but the boy could not enjoy it because he was blind．

　　The first sign simply said the boy was blind．While the second sign told people they were so lucky that they were not blind．

　　There are at least two lessons we can learn from this simple story．

　　The first is：Treasure what you have．Someone else has less．Try your best to help those who need your help．

　　The second is：Be creative．Think differently．There is always a better way．

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阅读理解，阅读下列内容，从每小题所给的A、B、C、D四个选项中选出一个最佳答案。

　　Televisions were among the most talked-about things at CES 2013-he 2013 International Consumer Electronic Show(国际消费类电子产品展销会)last week in Las Vegas, Nevada．They were bigger and better with some of the highest technology(技术)．Some TVs used a new technology called OLED．They were bigger, thinner and lighter, offered better colour and were brighter than traditional TVs using LED．

　　Ultra High Definition TVs were also popular．Most of the TVs shown on the exhibition used 4k technology．

　　Smart TVs this year were smarter．Many offered technology that users have a more personalized(个性化的)experience．One such TV from TCL can know who is watching with the help of new technology．Then it can offer programmes according to the user's usual interest．Another TV from Panasonic offers a similar personalized user experience．

　　Size also played an important part in CES 2013．TVs changed in size from big to bigger, with at least two companies-Samsung and Hisense-showing TVs that are 110 inches large on the exhibition．

　　The yearly CES is the biggest technology show in North America and one of the biggest in the world．

　　It's a meeting of the brightest minds and the top leaders from many industries and those who want to know about the future．

　　Digital health and fitness inventions were also big at CES 2013．There was even a fork that tells you when you are eating too fast．

　　The show had over 3, 200 different companies showing more than 20, 000new products in about 26 miles of exhibition space．

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阅读下面的五篇短文，根据短文内容，从短文后各题所给的A、B、C、D四个选项中，选择最佳选项。

　　Volunteering means spending some of your free time helping others．You may volunteer to help other people, but you can also volunteer to protect animals, the environment, or any other things that you care about．

　　Volunteering helps others, but it can also help you．If you’re worried about something that's happened, doing something can be a great way to deal with(处理)your feelings．

　　Volunteering can let you see your own life in new ways．Sometimes it's easy to worry about things like grades or get angry because you don't have the most expensive shoes or the newest computer game．Volunteering lets you spend some time on others for a while．

　　Lots of people find that they really enjoy volunteering．Volunteer experiences often put you in a different environment．Doing volunteer work means one very important thing： You make a difference in the world．

　　Volunteering is a great way to have fun with your family, and here are some ideaas on how you can do together．

　　●Clean up a park, or a road along a river．

　　●Plant trees or flowers in your community(社区)

　　●Serve food at a homeless shelter(收容所)

　　●Give meals to people who are elderly or ill at home．

　　●Clean up a school or other public buildings．

　　Some schools now require(要求)kids to spend some of their time on service to others．Volunteering gives kids a taste of responsibility, because people are depending on them for something important．Volunteering also can help kids learn important things about themselves．A volunteer job can even help some kids decide what they want to do when they grow up．So what are you waiting for? Make a plan to start volunteering today!

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