四六级选词填空题是一项考察基础语法和短语知识比较多的题型，语法是学习英语的基础，是构建语言系统的框架，复习选词填空就更应该掌握这些基本语法知识，来看看 四六级考试网整理的英语四六级语法吧。

　　常见的连接词有though, although，as, while, even though

　　区分though，although，as

　　eg：Although/though he is a child, he can live by himself.

　　as 表示虽然的时候，要进行倒装;

　　Child as/though he is , he can live by himself.

　　eg：Although/though she works very hard ,she makes very little progress.

　　Hard as she works, she makes very little progress.

　　Although/though she is young, she has travelled to many countries to put shows .

　　Young as she is, she has travelled to many countries to put shows .

　　while：连接两个句子，表示虽然，但是;

　　eg：He is experienced while he is young.

　　真题分析：

　　1.The anti-virus agent was not known

　　(直到一名医生偶然发现了它)

　　until a doctor find it by chance.

　　2.I would prefer shopping online to shopping in a department store because __________(它更加方便和省时)

　　it is more convenient and timesaving.

　　3.But since water is much cheaper than wine, and many of the fancier brands aren’t available in stores, most diners don’t notice or care.

　　4. While there’s no question that continuous stress is harmful, several studies suggest that challenging situations in which you’re able to rise to the occasion can be good for you.

编辑推荐：

　　 英语四六级暑期语法学习大全

　　 2015年6月英语四六级成绩查询入口

　　 2015年6月英语四六级考试成绩查询时间

　　 2015年12月大学英语四六级考试时间

【责任编辑：屈应兰】