1、 Have you...yet? 你……了吗？ （1）Have you eaten yet?你吃过了吗？ （2）Have you found your keys yet?你找到钥匙了吗？（3）Have you decided on your major yet?你决定好自己的专业了吗？ （4）A: Have you finished your project yet? B: No, but I’ll be finished by tomorrow afternoon. A: 你们完成项目了吗？B: 没有，但明天下午之前能完成。 （5）A: Have you found a job yet? B: Come on, it’s tough finding a job these days. I just started looking two days ago! A: 你找到工作了吗？ B: 你别开玩笑了，现在找份工作不容易啊！我两天前才开始找呢！ 2、（1）雨时落时止。It rains at intervals.（2）暴风雨刮得正猛。The storm is at its height.（3）犯人依然逍遥法外。The prisoner is still at large.（4）我几乎没有任何办法了。I was almost at my wit’s end.（5）我经他人之手买了一台彩色电视机。I bought a color TV at second hand.（6）他牺牲了自己的健康才获得成功。He succeeded at the expense of his health.（7）她一看到妈妈就哭了。She cried at the sight of her mother.（8）大不了我去道歉。At the worst, I shall have to make an apology.（9）是去是留，请随便。You may go or stay at will.（10）你必须把这座右铭记在心头。You should bear the motto in mind.