例：All of them went there. → None of them went there. 他们全都去了那里。→ 他们全都没去那里。 Both of the twins like you. → Neither of the twins likes you.
② 句子中含有little、few、too(太)、hardly、never、neither、nor、seldom等词时, 则视为否定句。
例：Few people live there because life there is very hard. 几乎没有人生活在那里因为那里的生活太艰难了。 ③ 陈述句(主语+谓语+其他)在口语中可以直接表示疑问,表示惊讶或明知故问。 例：That s your boss? 那就是你的老板？
④陈述句一般情况下应使用正常的语序,即：主语+谓语+其他。但是有时会倒装,详见“倒装句”。 ⑤所有的从句一律使用陈述句语序,即在连接词后采用“主语+谓语+其他”的顺序。 例：The old man told me that he would live here for ten more years before he returns home.
老人告诉我说他还要在这儿住几年然后回家。
Could you tell me who you saw at the party last night? 能告诉我在聚会上你都看见了谁吗？
热身练习
将下列句子改为否定句。
1. He has been to the Great Wall.
2. There is something wrong with the boy. 3.Jim was late for class. 4. Alice does the shopping on Sundays.
5. His friend has already posted the photos.
疑问句
用以提问的句子叫做疑问句(interrogative sentence)。疑问句句末须用问号。疑问句有一般疑问句、特殊疑问句、选择疑问句、反意疑问句等。
1） 一般疑问句(general question)
需要用肯定词yes或否定词no来回答。其基本结构为：助动词+主语+谓语。同时在一般疑问句的句子的末尾一定要加上“?”
例如：Have you locked the door? Yes, I have.
Can Mary play the piano? No, she can t.
热身练习
将下列句子改为一般疑问句。 1. The woman is a nurse.
_________________________________________ 2. The boy is drawing a picture now.
_________________________________________ 3. He is as tall as his elder sister.