Question

16．（1）He had to go to the library．（改为一般疑问句）
Did he have togo to the library？
（2）I want you to go to your room at once．（改为否定形式）
I don't want you to go to your room at once．
（3）The handbag is very lovely，isn't it？（写出反义疑问句）
（4）I have had to stay there for a week．（就划线部分提问）
How long have you had to stay there？
（5）He says，"I come from Australia．"（改为间接引语）He says that he comes from Australia．．

Answer 1

分析 1）Did they go to the library？
2）I don't want you to go to your room at once．
3）isn't it
4）How long have you had to stay there？
5）He says that he comes from Australia．

解答 1）答案是Did he have to go to the library？本题考查句型转换；题目要求改成一般疑问句；原句是含有have to 的肯定陈述句，改一般疑问句时要在句首加助动词do的适当形式；原句是过去时，故在句首加did，had to 还原为have to；故答案是Did he have to go to the library？
2）答案是I don't want you to go to your room at once．本题考查句型转换；题目要求改成否定句；原句是含有实意动词want的肯定陈述句，改为否定句时要在实意动词前加助动词do not的适当形式；本题是一般现在时，故在want前加don't，故答案是I don't want you to go to your room at once．
3）答案是isn't it；本题考查句型转换；题目要求完成反意疑问句；反意疑问句的疑问句部分的结构是"助动词+主语？"，助动词和主语与陈述句保持一致，并且遵循"前肯后否"或"前否后肯"的形式；本题中前面的陈述句是肯定句，故疑问句用否定，陈述句中助动词为be，主语the handbag用it代替，故答案是isn't it．
4）答案是How long have you had to stay there？本题考查句型转换；题目要求就划线部分提问；被划线的是段时间"for a week"，所以用how long 提问；将原句中的助动词have提到主语之前构成一般疑问句，并将第一人称改为第二人称，故答案是How long have you had to stay there？
5）答案是He says that he comes from Australia．本题考查句型转换；题目要求改为间接引语；直接引语改为间接引语时，原句是陈述句，改为that引导的宾语从句；主句动词是一般现在时，原直接引语中的时态不做变化，主语改成与主句主语一致，故从句中动词用第三人称单数，故答案是He says that he comes from Australia．

点评 本题考查句型转换，在比较原句和改写句的基础上分析同义结构或句型，要积累常见同义词、同义短语和同义结构．