［误］ He has a great interest for physics.
［正］ He has a great interest in physics.
［误］ He has some interest in many companies.
［正］ He has some interests in many companies.
［误］ This is an interested book.
［正］ This is an interesting book.
［析］ 修饰物时应用interesting, 如，an interesting film，而讲某人对某事感兴趣时要用过去分词interested，如： I'm interested in this play. 但"他是一个十分有趣的人"。应译为He is an interesting man. 所以interesting是"令人感兴趣"之意，而interested则表示某人对某事物感兴趣，多用"be interested in something"这一句型。
invent
［误］ America was invented by Christopher Columbus in 1492.
［正］ America was discovered by Christopher Columbus in 1492.
［析］ invent意为"发明"即从无到有，如： Compass was invented by the Chinese people. 而discover则意为"发现"。
it
［误］ That takes me ten years to finish this work.
［正］ It takes me ten years to finish this work.