1. be good to对……友好be good for对……有益;be bad to…/be bad for… 2. add up加起来增加add up to合计，总计
add… to把……加到……
3. not…until/till意思是“直到…才”
4. get sth/sb done使……完成/使某人被…… 5. calm down平静下来
6. be concerned about关心关注
7.当while, when, before, after等引导的时间状语从句中的主语与主句的主语一致时，可将从句中的主语和be动词省去。
While walking the dog, you were careless and it got loose. 8. cheat in the exam考试作弊
9. go through经历;度过;获准，通过10. hide away躲藏;隐藏11. set down写下，记下
12. I wonder if…..我不知道是不是…. 12. on purpose故意
13. sth happen to sb某人发生某事
sb happen to do sth某人碰巧做某事it so happened that ……正巧碰巧
14. It is the first (second…) that… (从句谓语动词用现在完成时) 15. in one’s power处于……的控制之中16. It’s no pleasure doing….做…..没有乐趣
It’s no good/ use doing sth.做某事是没好处/没用的
17. She found it difficult to settle and calm down in the hiding place. it做形式宾语18. suffer from患…病;遭受19. so…that… /such…thay…
20. get tired of….对…感到劳累疲惫
21. have some trouble with sb/sth.在……上遇到了麻烦22. get along with sb/sth.与某人相处
23. ask(sb)for advice. (向某人)征求建议
24. make后接复合宾语，宾语补足语须用不带to的不定式、形容词、过去分词、名词等。常见的有以下几种形式:
make sb. do sth.让(使)某人做某事make sb. /sth. +adj.使某人/物…
make sb./ oneself +v-ed让某人/自己被…
When you speak, you should make yourself understood. make sb.+n.使某人成为…
25. alone /lonely.单独的/孤独的
26. I would be grateful if…委婉客气提出请求27. Why not do….. = why don’t you do…