invite/invitation/invent/inventor/invention/patent
记忆：
1. invite [ in5vait] in, 里面；vit, vi, 看；到里面看，这是在发出邀请，vt. 邀请, 引起 I will invite all my good friends to have the birthday party.我将邀请所有的好朋友来参加这次生日晚会。
2. invitation [ 7invi5teiFEn ] n. 邀请, 邀请函 Have you sent out all the invitations?你发出所有的邀请函了吗？
3. invent [ in5vent ] 词根vent表示出现，invent, 从（设想等）里面出来， vt. 发明, 创造 Paper was first invented in China. 纸是中国先发明的。
4. invention [ in5venFEn ] n. 发明, 创造 The invention contributed a lot to the human civilization.这项发明对人类文明作作出了巨大的贡献。
5. inventor [In5ventE(r)] n. 发明者, 创造者 Thomas Edison, a great American inventor, invent films, electrical lights and so on.伟大的美国发明家托马斯•爱迪生发明了电影、电灯等等。
6. patent [ 5peitEnt, 5pAtEnt ] n. 专利权 Our application for the patent has been approved. 我们的专利申请已经被批准了。
7. create [ kri5eit] vt. 创造, 创作 The invention of the computer created a new era.电脑的发明创造了一个新纪元。
另类阅读：
We have invited all the famous inventors across the country. They must have received our invitations so far. We hope they can come with their latest inventions.