快速排查本单元阅读词汇并在不认识的词汇前划√
□statistic n． □sunburnt adj. □super adj. □output n． □circulate vt.& vi.
□grain n． □occupation n． □personality n． □organic adj. □fertile adj.
□fertilizer n． □bacteria n． □nutrition n． □pest n．
□mineral n． □skim vt. □underline vt. □industrial adj.
□chemical adj. □battle n．& vt.& vi.
