useful的语法

1. 有用的，实用的，有益的，有帮助的，有效的，重要
2. 值得高度赞扬的，令人满意的，值得称赞的，好的
3. 对...很熟练的，能干的，精通...的，得力，优秀的
4. 可资利用的，有实际使用价值的

1. 有用的,有益的,有帮助的 effective in use, bringing help or advantage
2. [A] 令人满意的 satisfactory

1. being of use or service;

   "the girl felt motherly and useful"
   "a useful job"
   "a useful member of society"
   

2. having a useful function;

   "utilitarian steel tables"
   

• How useful he was helping in the garden.

  出自：R. Macaulay

• A useful school sportsman..got into the first eleven at most sports at Dartmouth.

  出自：N. Stacey

• A most useful addition to the Society's list of titles.

  出自：A. N. Wilson

Night class-(上夜课)

A：Where are you going?
你去哪里？

B：It’s Tuesday today. I always go to my class on Tuesday night.
今天是星期二。我星期二晚上通常要去上课。

A：I didn’t know you were taking any kind of class. Tell me about it.
我可没听说你要上什么课。跟我说说。

B：Well, I’m learning how to use math in the business environment.
哦，我在学习如何在商务中应用到数学。

A：What for?
学这个有什么用呢？

B：The job market is so competitive nowadays. I want to develop someuseful skills.
现在人才市场竞争激烈。我想拓展一些有用的技能。

A：I really admire you for that. How is it going?
真是佩服你。（课）进展如何？

B：It’s going all right. I’m learning some things for the first time, but I’m also brushing up on some things that I already know.
一切顺利。我在学习一些新东西。同时也在温习一些已经学过的知识技能。

1. useful的基本意思是“有用的,有益的,有帮助的”,也可表示“令人满意的”。
2. useful在句中可用作定语,也可用表语,作定语时,后面可跟介词for, for的宾语通常是人。作表语时,后面可接介词at, for, to, in。表示对于人有益时,用be useful to; 表示“对于某目的有益”时,用be useful for; 表示“对某事精通”时,用be useful at; 当表示“在…方面有益”时,用be useful in。