1、四级阅读词汇hold sth to account 与.对证，核实admit to 许可，允许appear to 似乎，好像apply sth to sth 把适用于ask for 要求assure sb of sth 使某人确信某事 ensure sb to do sth 保证某人做某事attach importance to = pay/ call attention to 关注，重视be based on 以为基础be bound to 肯定，一定when it comes to 当谈论到, 涉及到be concerned with 担心，忧虑contribute to 促成，造就be
2、content with 对满意cut back 消减be convinced of/that 相信，认为cope with=deal with 处理，克服daily routine 日常生活devote to 投身于，致力于have difficulty in doing sth 做.有困难end up sth with sth 用 结束be engaged in 参与，从事elementary school 小学be equal to 等同于，相当于expose to 暴露，接触to some /a extent 从某种角度far from 一点也不，根本不fail to 没能做成at f
3、ault 有责任，有错误federal authority 联邦政府be filled with 充满have to 必须得homeland security 国土安全be involved in 参与，从事be judged on 按评判，判断lay stress on = focus on 强调，重视meet ones needs/standards 满足需要，符合标准notbut不是，而是oil drilling= oil tapping= oil exploitation 开采石油owing to/ due to / because of / thanks to 幸亏，由于，因为opp
4、ose to 反对make a point of 重视pay increases 加薪四级阅读词汇persuade sb to do sth 劝说pick up 捡起，接送，学习there is no question that 毫无疑问range from to范围从到resort to 采取 方法，手段be responsible for 对负责have roots in 根源于，原因in the long run 从长远角度看see/view/regard/consider as 把当作，看做share ones opinion 同意.的观点have something to do with 和有关 have nothing to do with 和无关social ties 社会联系stop/prevent/keep sb from doing sth 阻止做 strive to do 设法，努力tend to 常常in terms of 有关于，涉及到volunteer to do sth 主动，志愿in the wake of sth 之后
