9、【S+LV+SC（主语+系动词+主语补足语)】 常见的动词有：be, seem, appear, look, remain, sound, feel, smell, taste, become, grow, turn, go, prove, etc. ▲S + LV + N （主语+系动词+名词) 1. ________________is one of man’s greatest_______________________. 生物多元化是人类最大的财富。 2. _________________of the Internet is an appropriate _____________of the government. 对互联网的立法管制是政府的职能。 3. The legalization of marijuana___________________________ in our community. 大麻合法化在我们社区成了个焦点话题。 4.The greatest