Microsoft has stopped providing service for Windows XP since April 8. The computers that use the XP system are not as safe as before. The 'demise' of Windows XP will have the greatest influence on China because it has about 210 million XP users, who make up about 70.percent of the PC market in the world. Microsoft's decision to 'kill' Windows XP, a product with hundreds of millions of users, has a certain purpose to show its strong position in the operating system market. At the same time, the 'death' of XP has created opportunities for China's IT companies to grow and develop. In fact, shortly after Microsoft announced the “demise” of XP,some Chinese IT security(安全)providers were willing to offer safe solutions for XP users who do not change into a new system. Information security is crucial for the IT companies, and the key to safeguarding information is the core technology, which very much depends on innovation(革新). Although China has some well-known IT companies, it still does not have the core technology to develop an operating system. Many people are always complaining about and criticizing.  Therefore, only by having information technology and a policy that encourages innovation can China break the monopoly(垄断)of international IT giants and protect the internet security. 小题1:根据短文内容完成句子填空。（每空限填一个单词）。 From the first paragraph of the passage, we know Microsoft has __________ __________ providing service for Windows XP. 小题2:根据短文内容完成句子填空。（每空限填一个单词）。 According to the passage, there are about__________ __________XP users in the world. 小题3:根据短文内容回答问题。 According to the passage, how can China break the monopoly of international IT giants and protect the internet security? 小题4:把短文中划线的句子译成汉语。 _______________________________________________________________________________ 小题5:根据短文内容用一个完整的句子回答问题（限10个词以内）。 What is the main idea of the passage? _______________________________________________________________________________