题目内容
18．According to a news report，a certain private school in Washington was recently（71）faced （face） with（72）a unique problem．A number of 12-year-old girls were beginning to use lipsticks and would put it on in the bathroom．That was fine，but after they put on their lipsticks，they would press their lips to the mirror，（73）leaving （leave） dozens of little lip prints．
Every night the maintenance man would remove the lip prints，and the next day the girls would put（74）them（they） back．
Finally the principal decided that something had to be done．She called all the girls to the bathroom and met them there with the maintenance man．She （75）explained（explain） that all these lip prints were causing a major problem for the custodian（管理人）（76）who/that had to clean the mirror every night．
（77）To show（show） how difficult it had been to clean the mirrors，she asked the maintenance man to show the girls how much effort （78）was required （require）．
He took out long-handled squeegee，dipped it in the toilet，and cleaned the mirror with it．Since then，there have been no lip prints （79）on the mirror．
There are teachers…and then there are （80）educators （educate）．
分析 维多利亚某私立学校的一些九年级女生开始在浴室使用口红，并将唇印留在镜子上．每天晚上清洁工人打扫干净后，第二天早上女孩们又把她们的唇印留在镜子上，给清洁工人造成很大麻烦．针对这件事情，校长想到了一个解决的好办法，最终问题得 以解决．
解答 71．faced 考查固定短语．动词短语be faced with 意为"面临，面对"，符合语境，故填faced．
72．a 考查不定冠词．此处意为"一个独特的问题"，因为表示"一"的概念时需用不定冠词，故填不定冠词a表示泛指．
73．leaving考查现在分词．他们把嘴唇按在镜子上，留下了很多唇印，这是自然而然的结果，所以用现在分词leaving作结果状语，故填leaving．
74．them考查人称代词．此处应作动词put的宾语，故用they的宾格them．
75．explained考查一般过去时．因为文章叙述的是过去的事情，所以用一般过去时，故填explained．
76．who/that考查定语从句的关系代词．分析句子成分可知，先行词 custodian 在从句中作主语，所以是定语从句，在定语从句中指人作主语的关系代词是who或that，故填who/that．
77．To show考查动词不定式．根据句意"为了展示清洁镜子是多么困难"可知此处是目的状语，所以应用动词不定式To show作目的状语，故填To show．
78．wasrequired 考查一般过去时的被动语态．因为主语effort和动词require之间是被动关系且文章用的一般过去时，所以应用一般过去时的被动语态，故填was required．
79．on 考查介词的用法．此处意为"在镜子上"，故用介词on．
80．educators考查名词复数．根据前面的teachers和空前的are，可知此处是表人的名词复数形式，故填educators，意为"教育者"．
点评 语法填空是通过语篇在语境中考查语法知识的运用能力，在解题前应快速浏览短文掌握大意，在读懂短文的基础上，结合短文提供的特定的语言环境去逐句分析，逐题解答．扎实的语法功底加上准确的理解是解答语法填空题的关键．
