1.按使用目的,句子可分为陈述句、疑问句、祈使句和感叹句。
1)陈述句(Declarative Sentences):说明一个事实或陈述一种看法。例如:
Light travels faster than sound. 光比声传播速度快。(说明事实)
The film is rather boring. 这部电影很乏味。(说明看法)
2)疑问句(Interrogative Sentences):提出问题。有以下四种:
a. 一般疑问句(General Questions):
Can you finish the work in time? 你能按时完成工作吗?
b. 特殊疑问句(Wh-Questions):
Where do you live? 你住那儿?
c. 选择疑问句(Alternative Questions):
Do you want tea or coffee? 你是要茶还是要咖啡?
d. 反意疑问句(Tag-Questions):
He doesn't know her, does he? 他不认识她,对不对?
3)祈使句(Imperative Sentences):提出请求,建议或发出命令。例如:
Don't be nervous! 别紧张!
4)感叹句(Exclamatory Sentences):表示说话人惊奇、喜悦、愤怒等情绪。例如:
What good news it is! 多好的消息啊!