题目内容
13．Enough sleep is important to health．The amount of sleep（41）needed（need） depends on the age of the person and the conditions in（42）whichsleep takes place．The young may need more sleep than（43）theold，but usually eight hours are enough for the health of grown-ups．Some can do with（44）lessthan this amount，but others may need more．Every person knows his own need．（45）Itis then a matter of good judgment to satisfy his need．Sleep should always be enough to make one bring back is（46）strength（strong） and get ready for a day's work．Fresh air is necessary to sound sleep．So it is not without reason for some people to think that it is practicable to sleep（47）inthe open air．A bath at bedtime，（48）neitherhot nor cool but of body temperature，may be helpful（49）tosleep．Sleep-producing drug should never be taken except when（50）suggested（suggest） by a doctor．
分析 每个人都需要睡眠，充足的睡眠对健康的意义重大．为了一个良好的睡眠，需要考虑很多因素，比如，时间，睡觉的场所及睡觉时的温度等．
解答 41．needed 考查过去分词．sleep与need之间是动宾关系，用过去分词作后置定语．
42．which 考查定语从句．分析句子结构可知这是一个定语从句，先行词conditions在从句中作介词in的宾语，用关系代词which．
43．the 考查冠词．"the+形容词"结构表示"一类人"．
44．less 考查比较级．根据句中than要用比较级，因表示数量，用little的比较级less．
45．It 考查it用法．it是形式主语，真正的主语是动词不定式短语to satisfy his need．
46．strength 考查名词．根据句意：充足的睡眠能让人恢复精力并为一天的工作作好准备．用名词strength，意为"力量"．
47．in 考查介词．in the open air意为"在户外"，是固定搭配．
48．neither 考查固定搭配．neither…nor…表示"既不…也不…"．其含义是否定的，可连接任意两个并列的成份．
49．to 考查动词不定式．sth．be adj．to do sth是一个句型，用动词不定式．
50．suggested 考查过去分词．when suggested by a doctor相当于when taking sleep-producing drug is suggested by a doctor的省略，用过去分词短语作状语．
点评 在一篇200词左右的语篇（短文或对话）中留出10处空白，部分空白的后面给出单词的基本形式，要求考生根据上下文填写空白处所需的内容或所提供单词的正确形式，所填写词语不得多于3个单词．要做好语法填空题，理解短文是解题的前提，扎实的词汇、句型和语法知识是基础，英语国家的背景知识是必要的补充．考生须灵活运用语法知识，如单词词性、单词时态、名词单复数、连接词、代词、冠词等判断各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．
