精选优质文档-倾情为你奉上专题四介词及介词短语考点一常见介词的用法常用介词如in,on,for,with,against,of,beyond,out of,across等含义较多,应全面把握。1against有“违背,违逆;反对;对不利;倚;靠;碰撞;预防;衬托”之意。2014湖南Vacations help us perform better at work,improve our sleep quality and cushion us against depression.假期帮助我们在工作中表现得更好,提高我们的睡眠质量和缓解忧愁。2beyond可表示范围,限度,意为“超出,为所不及”。常用短语:beyond words/description/imagination/belief/ones reach/ones control,意为“无法用语言形容/无法用语言描述/想象不出来/无法相信/够不着/无法控制”。2014浙江“I came to thank you,”she said,surprisin