Passage 4
Individuals and businesses have legal protection for intellectual property they create and own. Intellectual property _1_ from creative thinking and may include products, services, processes, and ideas. Intellectual property is protected from misappropriation (盗用).Misappropriation is taking the intellectual property of others without _2_ compensation and using it for monetary gain.
Legal protection is provided for the owners of intellectual property. The three common types of legal protection are patents, copyrights, and trademarks.
Patents provide exclusive use of inventions. If the U.S. Patent Office _3_ a patent, it is confirming that the intellectual properly is unique. The patent prevents others from making, using, or selling the invention without the owners _4_ for a period of 20 years.
Copyrights are similar to patents except that they are applied to artistic works. A copyright protects the creator of an original artistic or intellectual work, such as a song or a novel. A copyright gives the owner exclusive rights to copy _5_, display, or perform the work. The copyright prevents others from using and selling the work. The lehgth of a copyright is _6_ the lifetime of the author plus an additional 70 years.
Trademarks are words, names, or symbols that identify the manufacturer of a product and _7_ it from similar goods of others. A servicemark is similar to a trademark but is used to identify services. A trademark prevents others from using the __8_ or a similar word, name, or symbol to take advantage of the recognition and _9_ of the brand or to create confusion in the marketplace.Upon registration, a trademark is usually granted for a period of ten years. It can be _10_ for additional ten-year periods indefinitely as long as the marks use continues.
A)recurred B)identical C)due D)typically
E)grants F)parallel G)popularity H)distinguish
I)retrieves J)renewed K)distribute L)results
M)random N)permission O)instantaneously
Passage 4
解题思路
1.[L]本句主语是Intellectual property(知识产权)，前一句是一般现在时，故此处需填入第二人称单数形式的谓语动词。主语与空格后的creative thinking(创造性思维)是结果和原因的关系。results与from构成固定搭 配,表示源于，语句通顺。retrieve sth. from表示从取回/找回某物，填入空格后语义不通。
2.[C]此处需填人名词、形容词或分词,修饰compensation(补偿)。本句解释了 misappropriation(盗用)的概念,即没有给予他人补偿就使用别人的知识产权，故填入due应付的。
3.[E]此处需填入if条件句的谓语动词，因主语是Office,故该动词为第三人称单数。本句意为：如果美国专利局专利权，就确认了该知识产权是唯一的。grants与a patent搭配，指授予专利权，符合语义逻辑。
4.[N]此处需填人名词，作without的宾语。这里讲专利权所要防止的事情，Permission与without the owners搭配，表示未经专利持有者许可，其他任何人不得制造、使用或出售该项发明创造，符合句意。
5.[K]此处需填入与copy, display和perform并列的动词原形。distribute分发，发行与复制、展示及演示作品均属版权所有者的专有权，故正确。
6.[D]空格前后分别是系动词和表语，句子的主要成分完整，故此处需填人副词。本句说明版权的期限,typically通常符合语义，表明期限通常是作者的寿命再加上额外的70年。
7. [H]此处需填入动词原形，与identify并列充当that定语从句的谓语。动词库中distinguish符合句意，distinguish... from表示有别于，区别于，与该句similar语义相对，说明注册商标是把产品和别人的类似商品 区分的文字、名称或符号。
8.[B]此处需填人形容词或分词，修饰word, name, or symbol。identical同一的，同样的与or后面的similar相呼应，符合语义逻辑，表示注册商标防止他人使用相同或者相类似的文字、名称或符号。
9.[G]空格后的of表明此处需填入名词。popularity声望和recognition(认可，公认)并列，符合语义逻辑，指利用该品牌的知名度和声望。
10.[J]空格所在句子缺少谓语,根据空格前的be确定此处需填人过去分词，构成被动语态。renewed延长期限与后文additional ten-year periods(额外10年的期限)呼应,符合文意。