Unit3单词1) After gold was first discovered at Sutters Mill in 1848 ,many people travelled all the way to California in quest(探索) of gold and fortune.2)He had finished his speech ,but somehow he remained(依然) at the microphone for a few minutes, gazing at the audience.3)Medical research has proved that people who consume(消耗) large amounts of animal fats are more likely to get cancer and heart disease than those who do not.4)My fathers job is to look through a microscope at viruses day a