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17.In my free time,I really like (66)surfing (surf) the Internet.When I get home from work,I turn on my computer,wait until it boots up(启动)(67)completely ( complete),and then I go online.I usually check my email first and then write a few(68)messages( message) to family and friends.I sometimes scan the local news headlines at my favorite news Website and read up on the(69)latest (late) local and international news.This Website often provides video news clips(片段) (70)that\wich you can view online.I sometimes order products or service online to save money and time instead (71)of going to a store and(72)buying(buy) what I'm looking for.For example,I (73)ordered  (order)a digital camera online the other day and saved about $50.Whatever I do,I realize that there are problems with using the Internet including scams(诈骗),identify theft,and viruses,so I'm very careful not to give out my (74)personal (person) information.Furthermore,I don't download or open files I don't recognize.Using the Internet can be fun and a convenient way of shopping and finding out new information,(75)but you just need to be careful.

分析 我空余时间喜欢上网,收发邮件,浏览国内外的新闻,还可以购物.但网络上也有一些诈骗和病毒,因此对个人信息一定要注意.

解答 答案:66.surfing;考查动词搭配.like doing sth喜欢做某事. 
67.completely;考查副词.句中complete修饰动词boot up,要用副词形式. 
68.messages;考查名词.句中有a few修饰,开始名词要用复数形式. 
69.latest;考查比较级.句意表达的是最新的消息,要用最高级形式.
70.that\wich;考查连词.句中you can view online修饰名词clips,是一个定语从句;从句缺少宾语,且先行词clips指物,要用that或which来引导. 
71.of;考查短语搭配.instead of代替,常用短语. 
72.buying;考查动名词.句中buy作介词of的宾语,要用动名词形式.
73.ordered;考查时态.句意表达的是过去的动作,要用一般过去时态. 
74.personal;考查形容词.句中person修饰名词information,要用形容词形式;personal information个人信息. 
75.but;考查连词.句意表达的是转折,要用but来连接.

点评 语法填空题是考查学生的语言运用能力.解题时,要在理解文章的基础上,灵活运用语法知识,如词性,时态,名词单复数,连接词,代词,冠词等判断空白处应填写的内容.答完后,还要通读全文,核对所填单词形式是否正确,是否符合语境.

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