答案:ThedeathofthefamousscientistisagreatlosstoChinesepeople.这里是说客观事实用一般现在时,主语是这位著名科学家的去世用of所有格Thedeathofthefamousscientist,是三单,谓语动词is表示是,宾语一个巨大的损失agreatloss,对中国人民,用介词to,加上Chinesepeople,故toChinesepeople.故答案是ThedeathofthefamousscientistisagreatlosstoChinesepeople.