题目内容
20．More and more middle school students are going to various training classes or having family teachers at weekends．There are two different viewpoints （观点） about it．Some think it is necessary．First of all，it's （46）more effective （effective） to study with a teacher than （47）by students themselves．Secondly，it can strengthen（48）whatis learned in class．Besides，they can learn a lot more．Others think it is （49）unnecessary （necessary）．For one thing，students can （50）easily （easy） form the habit of dependence．For （51）another，students need to relax from time to time．What's more，the purpose of many training classes and family teachers is （52）to make （make） money．
In my opinion，whether a training class or family teacher （53）is needed （need） just depends on yourself．If you are really very weak at or interested in （54）a certain subject，maybe it's OK for you．But be sure to choose a good and suitable class or family teacher，（55）orit would be a waste of time and money．
分析 文章介绍了周末很多学生参加培训班或请家教的现象．人们对此褒贬不一，有人认可，有人认为是浪费精力．作者认为感兴趣或者适合最重要．
解答 46．more effective；考查比较级．句中than连接比较对象，可以知道这是一个比较级用法；effective的比较级要通过加more来构成．
47．by；考查短语搭配．by oneself靠自己，固定短语；句意表达的是学生和老师一起学习要比自学更有效．
48．what；考查连词．句中is learned in class作动词strengthen的宾语，是一个宾语从句；从句缺少主语，且句意表达的是事物，要用what来连接．
49．unnecessary；考查句意理解．句中they can learn a lot more表示肯定，后面是和前面的构成对比，可以知道这里表达的是否定；necessary的否定是通过添加前缀un-来构成．
50．easily；考查副词．句中easy修饰动词form，要用副词形式．
51．another；考查搭配短语．for one thing…for another…一方面…另一方面…，常用搭配结构．
52．to make；考查动词不定式．句中make作系动词的表语，句意表达的是未发生的动作，要用动词不定式来构成．
53．is needed；考查语态．句中need和主语a training class or family teacher构成动宾关系，要用被动语态；句意表达的是一般事实，要用一般现在时态的被动语态；主语是单数，系动词要用is．
54．a；考查冠词．句意表达的是泛指某一学科，要用不定冠词来限定．
55．or；考查句型搭配．祈使句+or+陈述句，表示做某事，否则就怎样，常用的句型结构．
点评 语法填空题是考查学生的语言运用能力．解题时，要在理解文章的基础上，灵活运用语法知识，如词性，时态，名词单复数，连接词，代词，冠词等判断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．
