Directions：Complete the following passage by filling in each blank with one word that best fits the context.
Search engines are a type of puter program. The links that you get are not classified by subject. These engines search the Internet for you based 1on the key words you type in, 2and choose web pages for you 3which/that contain the words you ask for. The contents they search have not been evaluated. This means that the information has never been checked—it could be reliable, true information 4or false information written by a person 5without qualifications or someone who does not have solid facts. 6The links you obtain from the search engine go to full articles or pages. This requires 7you to be patient as you have to read the information to decide whether it is linked to 8what you are searching. Examples of famous search engines are Google, Yahoo and Baidu. You can also go to the www.thesearchenginelist. website and check their list of search engines.
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解析：
【小题1】base on 词组
【小题2】并列句
【小题3】定语从句，先行词pages在从句中做contain的主语
【小题4】根据true和后面的false可知，是指真实的或者（or）是虚假的信息。
【小题5】根据句意可知此处指的是不好方面的信息，是没有任何资格的人发布的信息。
【小题6】此处指的是上文提到的连接，所以是特指
【小题7】根据句子后半部分可知主语是you
【小题8】根据句子结构可知可知此处是宾语从句，is linked to 后面的宾语从句中缺少search的宾语，故选择what