题型：语法填空（语篇） 题类：常考题 难易度：困难
广东省揭阳市第一中学2017-2018学年高一上学期英语期末考试试卷
A patent is an official document(give)to an inventor by a government. This document (general) gives inventors the right to stop anyone else from copying, using or selling the invention without their permission.
Inventions are the result of hard work. It may only take a moment of inspiration to think of a good idea but it takes a lot of research and experimentation to turn it into a(n) (use)and working invention. So, inventors deserve a reward for the amount of time they spend (develop)their ideas. They also need the (secure) of knowing that if they share the invention with rest of the world, nobody will steal it, use it or copy it without their permission.
Patents also benefit the society return for patent protection. Inventors agree(show)all the technical information about their invention. This information is available to everyone and has enough details can be used by people with basic knowledge to produce the invention. In this way, patents help to spread new knowledge, which can in turn help people find (solve)to different problems or to make further advances in science and technology.
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