阅读下面五篇短文，根据文章的内容选择最佳答案。

　　Every day in China, about 200 million children go to school．Many of them take school buses．What should we do to keep these students safe on the road?

　　New rules about school bus safety came out on April 5．These new rules are much stricter than the old ones．

　　Under the new rules, local governments must make sure that students go to nearby schools or boarding schools to reduce traffic accidents．Also, local government must help kids in the countryside reach their school buses．

　　From now on, school buses have a speed limit of 80km per hour on highways and 60km per hour on normal roads．While on the road, other cars must let school buses go first．

　　The new rules also say that school buses must never be overloaded(超载)．

　　There are many other rules as well．A school bus must have more than seven seats．On each bus, there must be at least one adult to keep an eye on the kids．Each school bus must have a fire extinguisher, a first aid case and a GPS．

　　Last year, too many school bus accidents happened in China．To stop such accidents, the Central Government decided to change the situation．

　　The most serious accident happened in November in Gansu, when a nine-seat minibus and a truck hit each other．There were 62 children inside, and 21 of them died．

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阅读下面五篇短文，根据文章的内容选择最佳答案。

　　The London Olympic Games are coming soon．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 look like they are there in the room with you．For example, while a car is running fast towards you on the screen, you are afraid that it will hit you．Yes, it's a 3-D movie．But do you know how they are made?

　　3-D is based on the way the human brain and eyes work．When we look at something, each eye sees it from a different angle(角度)．Our two eyes send the two images to our brain, and the brain puts them together．What you see becomes 3-D．

　　3-D movies are made using two video cameras at the same time, which creates two different images at different angles．When the movie plays in a cinema, two projectors put the two images on the screen．One projects(投射)a left eye image and the other projects a right eye image．The 3-D glasses help get a different image into each eye of us．

　　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 so your eyes are easy to get tired．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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阅读下面五篇短文，根据文章的内容选择最佳答案。

　　On my way to lunch today, I saw an old man sitting on a park bench, crying his heart out．I was surprised, so I stopped and asked him what was wrong．

　　“I have a 22-year-old wife at home．She makes lots of delicious food for me, like pancakes, fresh fruit and hot coffee, ” he said slowly．

　　“Well, then why are you crying? ” I asked．

　　“ She makes me delicious soup for lunch, cleans the house and then watches sports on TV with me for the rest of the afternoon, ” he added．

　　It sounded like his wife was a very good person．“Well, what are you crying for? ” I asked again．

　　“For dinner she makes me a great meal with wine and my favorite dessert．”

　　“Well then, why in the world would you be crying? ”

　　“I just can't remember where I live, ” he answered sadly．

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