陈述句：
妹妹长得很漂亮。
疑问句： 妹妹长得不漂亮吗？
陈述句：
今天下雨了。
疑问句： 今天下雨了吗？
陈述句：
功课没做完，不能去看电影。
疑问句： 功课做完了吗？能去看电影吗？
陈述句：
泪珠是人类内心纯真感情的升华。
疑问句： 泪珠不是人类内心纯真感情的升华吗？
陈述句：
他呀!都老头子了，不用订这些东西了。
疑问句： 他不是老头子吗？还需要订这些东西？
陈述句: I am from China.
疑问句: Are you from China？
陈述句: His father is an English teacher.
疑问句: Is his father an English teacher？
陈述句: These cats are crying.
疑问句: Are these cats crying？
陈述句: They can swim.
疑问句: Can they swim？
陈述句: I like to read English.
疑问句: Do you like to read English？
陈述句: I go to school on foot.
疑问句: Do you go to school on foot？
陈述句: He likes English.
疑问句: Does he like English？
陈述句: His father goes to school by bus.
疑问句: Does his father go to school by bus？
陈述句: She can speak French.
疑问句: Can she speak French？
陈述句: They are playing football in the park.
疑问句: Are they playing football in the park？
通过这些例子，你可以看到如何将二年级的陈述句转换为疑问句。主要的方法包括改变句子的语序、添加助动词或疑问词，以及调整句子的语气。希望这些例子对你有所帮助!
