双基限时练(七) unit 4 lesson 4 ⅰ.单词拼写 1．it is said that ________ (旅游业) has brought in a lot of money for this little town. 答案 tourism 2．three hundred years ago, the smiths arrived and ________ (定居) in this town. 答案 settled 3．mr.li can earn an ________ (平均的) income of five thousand dollars a month.
