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2018考研英语复习正在进行中，何凯文老师的每日一句每年都很受关注，在长难句解析拆分句子的方法也讲解得十分到位，文都考研汇总了何凯文2018考研英语每日一句，下面是何凯文每日一句第168句。

今天的句子：

Fire officials say the buildings are as safe as any other once they’re fully operational— with sheetrock, fire breaks,smoke detectors, and sprinklers installed — but they are vulnerable during construction,when flames can shoot quickly through rooms composed of little more than wood.

词汇突破

1.operational可使用的

2.sheetrock石棉水泥板

3.detector探测器

4.sprinkler洒水器

5.install安装

6.vulnerable易受伤害的；有弱点的

7.composed of由…组成

确定主干：

Fire officials say (the buildings are as safe as any other 宾语从句), but they are vulnerable during construction.

切分成分：

1.once they’re fully operational时间状语

2.with sheetrock, fire breaks,smoke detectors, and sprinklers installed介词短语作状语

3.when flames can shoot quickly through rooms时间状语

4.composed of little more than wood后置定语

参考译文：消防官员说，一旦全面投入使用，这些建筑会和其它建筑一样安全，装有石棉水泥板、隔火设施、烟雾探测器和洒水器。但在施工过程事，它们非常脆弱，火焰可以快速地穿透主要是木头的房间。

明天的句子：

As trade and human travel has become globalised many thousands of species have crossed oceans or mountain ranges and become established in new regions, with some causing “invasional meltdown” and over a trillion of dollars of damage a year. Recent research shows that ever more animals and plants are finding their way to foreign lands and that invasive species are a “primary threat” to economies, human wellbeing and wildlife.

 推荐阅读：何凯文考研英语每日一句：2018考研句子汇总

暑期是关键的强化复习阶段，文都考研为2018考研学子准备了半年集训营、暑期集训营等辅导课程。8月1日二期营正火热报名中，早报有优惠!