陈述句

　　陈述句说明一个事实或是表达说话人的看法。如：

　　She arrived quite early.

　　I don't see any point in making another speech on this problem.

疑问句

　　疑问句分为一般疑问句、特殊疑问句、选择疑问句和反意疑问句。

　　1.一般疑问句

　　一般疑问句通常以助动词开始，要求以yes 或no回答。如：

　　“Will you pass on a message to him?” “Yes， what's it?”

　　“Do you like sports?” “No， I prefer reading in my spare time. ”

　　2.特殊疑问句

　　特殊疑问句以疑问代词开头，后面通常接一般疑问句，如果疑问词或其修饰的词作句子的主语，后面应用陈述句句序。如：

　　How much did she charge ?

　　Who is responsible for the accident?(be responsible for 为……负责)

　　“______ do you record the temperature in the lab?”

　　“Every two hours.”

　　A. How soon B. How long C. How often D. How much(答案 C how often 表示频率，how soon最快……，how long 一段延续的时间，how much 问价钱)