adj.(形容词)

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

adj.(形容词)

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

Adjective:

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"
   

1.有用的；可用的；有助益的
If something isuseful, you can use it to do something or to help you in some way.

e.g. The slow cooker is veryuseful for people who go out all day...
慢炖锅对于整天都不在家的人来说很有用。
e.g. Hypnotherapy can beuseful in helping you give up smoking...
催眠疗法可能有助于你戒烟。

usefully
...the problems to which computers could be usefully applied...
可以利用计算机解决的问题
We need to find ways of dealing creatively and usefully with our feelings.
我们需要找到一些既有创意又实用的方法来调整我们的情绪。usefulness
His interest lay in the usefulness of his work, rather than in any personal credit.
他的兴趣在于所从事的工作是有用的，而不在于什么个人荣誉。

2.有用；派得上用场
If an object or skillcomes in useful, it can help you achieve something in a particular situation.

e.g. The accommodation is some distance from the clubhouse, so a hire car comes inuseful.
住处离会所有一段距离，所以租一辆车会很有用。

1. useful是什么意思

1. 有效的：如果公共事业振兴署的产出是有效的(useful)并且已经被出售,那么对失业者的公共事业振兴署的类救济不及失业保险那样容易引发通货膨胀. 如果公共事业振兴署的产出有效(useful),那么即使它不在市场上出售,对于那些发现该产出有效的人们来说,

It is a useful book and, what is more, not an expensive one.

这是有用的书，更难得的是不贵。

The book contains much useful information.

这本书包含了许多有用的资料。

John always tries to cultivate people who are useful to him.

约翰经常设法和对他有用的人结交。

A sauna in the hotel would be a useful amenity.

旅馆中的芬兰蒸汽浴室倒是个有益的好设施。

She stopped hanging about and did something useful.

她不再闲逛,而是做了些有益的工作。

This manual is full of useful tips.

这本小册子里有很多实用的小建议。

They are not only ornamental, but also useful.

它们不但具有装饰性，而且是实用的。

a useful gadget

有用的小器具

It can be useful to write a short summary of your argument first.

先把你的论点纲要写下来可能会有帮助。

He might be useful to us.

我们也许用得上他。

These plants are particularly useful for brightening up shady areas.

这些植物特别有助于让背光的地方明亮起来。

Don't just sit watching television'u2500 make yourself useful !

别光坐着看电视——帮一下忙吧！

This information could prove useful .

这条信息往后也许有用。

Your knowledge of German may come in useful (= be useful in a particular situation) .

你的德文知识可能会派上用场。

Some products can be recycled at the end of their useful life.

有些产品过了有效使用年限后是可以回收再利用的。

He's a very useful player.

他是个很棒的运动员。

The money could be more usefully spent on new equipment.

这笔钱用来购置新设备可能会更有价值。

The slow cooker is very useful for people who go out all day...

慢炖锅对于整天都不在家的人来说很有用。

Hypnotherapy can be useful in helping you give up smoking...

催眠疗法可能有助于你戒烟。

The accommodation is some distance from the clubhouse, so a hire car comes in useful.

住处离会所有一段距离，所以租一辆车会很有用。

Shoemaking is a useful trade.

做鞋是一种有用的手艺.

This dictionary is very useful, only it is a bit costly.

这本词典很有用, 左不过贵了些.

A useful characteristic of the car is its ability to see in the dark.

这种汽车的一个有利特点是在黑暗中能看清东西.

The canal has proved useful to the county in many ways.

这条水渠给这个县带来的好处是多方面的.

Don't linger away your holidays. Try to find something useful to do.

不要虚度假日, 尽量找些有意义的事做.

Year by year a few of these slang terms prove so useful that they graduate into respectable society.

年复一年,这些俚语中的一些证明是十分有用的,因而逐渐进入了上流社会.

His wife is very useful at cooking.

他的妻子擅长烹调.

The minister has piloted several useful bills through Parliament.

这位部长设法使几项有用的法案得以在国会通过.

Gems unwrought can do nothing useful.

玉不琢,不成器.

She makes herself generally useful.

她能干各式各样的工作.

It is very useful for a person to know how to swim.

对一个人来说会游泳是很有用的.

I picked up some highly useful old books.

我偶然得到了几本极为有用的旧书.

This chisel is useful for getting into awkward spaces.

这凿子在要伸入到犄角儿里时十分有用.

Every part of the pig is useful.

猪浑身上下都是宝.

He's a useful member of the team.

他是该队的一名强手.

用作定语～+ n.

1. She's a useful person to know.
   她是个应该结交的有用的人。
2. John is a useful person to be around on such occasions.
   在这种场合有约翰在身边是很有帮助的。
3. Horses are useful animals.
   马是有用的动物。
4. I need a useful dictionary.
   我需要一本有用的词典。
5. He gave us some useful advice.
   他给了我们一些有益的忠告。
6. Salt is a useful substance.
   盐是一种有用的物质。
7. This is a useful book for beginners in English.
   这是一本对英语初学者有用的书。
8. The England cricket team scored quite a useful total.
   英格兰板球队得分总数令人满意。

用作表语S+be+～

1. Money is always useful.
   钱总是有用的。
2. Information about people's language ability is often very useful.
   有关人们语言能力的信息经常是很有用的。

S+be+～+ prep .-phrase

1. He is useful at cooking.
   他很会烧菜。
2. He is very useful at maths.
   他精通数学。
3. These books might be useful to you.
   这些书可能会对你有用。
4. These story books are useful to children.
   这些故事书对儿童有好处。
5. Your advice was very useful to me.
   你的劝告对我很有益处。
6. We should absorb whatever experience is useful to us.
   我们应吸取对我们有益的经验。
7. Tom's advice has been most useful to us.
   汤姆的建议对我们是很有用的。
8. Such information is useful only to those who know that particular subject.
   这种材料只是对了解那个特殊问题的人才有用。
9. Outdoor sports are useful to your health.
   户外运动对你的健康很有好处。
10. This book will come in useful for criticizing the wrong behaviour.
    这本书对批评错误的行为很有用。
11. The computer is useful in processing data.
    计算机在处理数据方面很有用。

It is/was+～+(for sb+) to- v

1. It is useful to read the text early in the morning.
   清晨读课文很有用。
2. It is very useful for a person to know how to swim.
   对一个人来说会游泳是很有用的。
3. Probably it will be useful for them to acquire a practical knowledge of English.
   有英语的实际知识可能对他们有用。

It is/was+～+ v -ing

1. It's useful knowing several foreign languages when you are traveling abroad.
   在国外旅行时,会几门外语是非常有用的。

用作宾语补足语S+V+O+～

1. I find this pen very useful.
   我觉得这支笔很有用。

useful as

可用作…的 can be used as

副词+～

• useful">amazingly useful非常有益的
• useful">extremely useful极有用的
• useful">generally useful样样都行的
• useful">particularly useful极有用的

～+介词

• useful%20at">useful at擅长…
• useful%20at%20cooking">useful at cooking擅长烹饪
• useful%20for">useful for对…有用
• useful%20for%20students">useful for students对学生有用
• useful%20in">useful in在…方面有用
• useful%20in%20agriculture">useful in agriculture在农业方面有用
• useful%20to">useful to对…有用
• useful%20to%20parents">useful to parents对家长们有用

• 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。

adj.(形容词)

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。