从语言表达中学习句型转换
句型转换基本一是每次检测中必不可少的一道可口的“菜肴”。

英语表达中，一个意思也像中文一样不仅仅局限于一种形式，所以在口语表达之中和完成作品之中句型转换是一项很好的练习，是对句型知识的全面检验，是融习惯用语、句法、词语为一体的综合复习。

所以进行句型转换是复习课文和文章的一种很有效的方式。

如：
（1）This book cost me two yuan.这一句就是看同学们是否了解“花费”一词的应用。

Cost不仅可用it 作主语。

它还可用“物”作主语，其后跟间接宾语“人”再加直接宾语“钱”。

spend 和pay 要求用人作主语，其后跟钱，用与之固定搭配的介词on 或for 引出“物”。

take 除了花费“时间”之外，还可以花费“钱”。

所以这个句子可以转换成以下这些句子：①It cost me two yuan to buy the book.②I spend two yuan on for the book.③I paid two yuan for the book.④It took two yuan for me to buy the book.⑤It took me two yuan to buy the book.
种句型的内在联系的运用的熟练程度①Please lend me your English dictionary,will you?
②Why not lend me your English dictionary?③May I have your English dictionary?④Will you please lend your English dictionary to me?
(3)The room is so big that it can hold so many people. 这一句看学生是否掌握了副词Very, so, enough, too,等如何修饰其它词，这一句可以用以下四种形式去替换①The room is big enough to hold so many people.②The bigger the room is the more it can hold.③The room is very big so it can hold so many people.④There is such a big room that it can hold so many people.
(4) Bike is short for bicycle.是不是也可以用其它形式去代替呢？下面有五种表达方式讲的是同一种意思①We call bicycle bike for short..②Bicycle is called bike for short.③Another way of saying bike is bicycle.④The word bicycle means bike.⑤We mean bike by bicycle.
按上述形式去进行语法和口头表达，可以扩大学生的知识面，充分调动学生的学习积极性还有学生的口头表达兴趣，还可以活跃课堂气氛，能起到事半功倍的效果，我们不妨试一试。

很有作用的。