Module 4 Education Unit 3 Language in use Language practice How long have you studied Chinese? For a year. How long have you lived here? Since 2004. She has studied it for a year. Since 1989 Project Hope has built schools all over China.要表达某一行为或某一状态从过去某一时间一直持续到现 在，我们可用现在完成时表达。如： I have lived in Beijing for 10 years. 我在北京住了10年了。 I have studied English for four years. 我学习英语已经四年了。 I have been in this school since 2000. 从2000年起我就一直在这所学校。I have lived here since my childhood. 我从小就一直住在这里。 从以上例句可以看出，在表示
