More than a hundred years ago, an American produced a game. He called it indoor tennis. The Americans were not interested in it at first so he sent it to his London friends and it became very popular in Britain.The game was then played across the dining room table, or on the floor with the net hung between two chairs. The balls were made of cork or rubber.The bats were made of wood.
   A few years later a hollow ball like the one we use today was invented. The game then quickly spread all over the world. An Englishman once made a bat covered with rubber. He first played the game in England and called it “ping-pong”. “Ping”was the sound of the bat when it hit the ball. and “pong” was the sound of the ball when it hit the table.

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秦王谓唐雎曰：“寡人以五百里之地易安陵，安陵君不听寡人，何也?且秦灭韩亡魏。而君以五十里之地存者，以君为长者，故不错意也。今吾以十倍之地，请广于君，而君逆寡人者，轻寡人与?”唐雎对曰：“否，非若是也。安陵君受地于先王而守之，虽千里不敢易也，岂直五百里哉?”

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阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

    What is the most popular communication tool today? ____your answer is QQ or MSN, I must say you are a bit old fashioned. Today, a new form of communication “Wechat”, which  ____ (own) a Chinese name Weixin, is becoming the most influential text and useful tool all over the world.

    What advantages do Wechat have? First, Wechat is ____relative cheap way of communication; that is to say, it uses network traffic instead of telephone fare. Next, we can know  ____is going on at any time. And we can have ____ (easy) access(通道) to information available than other messaging tools.

    What roles does it play ____ our daily life? According to the latest report, the registered (登记的) users on Wechat platform has topped 200 million and expanded its business to overseas market. Can you imagine that a mobile phone “app” is so ____(attract) that it reaches 200 million users within 8 months? Wechat itself has become the most popular mobile chat application in the world. A large ____ of people have become “Wechataholic”, which means they keep staring at the mobile phone all the time and can't live without ____.

    However, while enjoying its great convenience, people should not ignore the danger of ____ (cheat), for information on Wechat is publicly known.