be useful to和be useful for的區(qū)別是介詞后面連接的分別是somebody和something。
1、be useful to
意思: 對(duì)…有益。通常在to后面加somebody。
例如: be useful to me: 對(duì)我有益。
2、be useful for
意思: 對(duì)…有用;具有…用途。通常在for后面加something。
例如: be useful for writing :對(duì)編寫(xiě)有用。
擴(kuò)展資料
例句
1、be useful to
1) Once our services cease to be useful to them, we're expendable.
一旦我們的服務(wù)對(duì)他們不再有用,我們就可能被拋棄。
2) This reference book is very useful to our study.
這本參考書(shū)對(duì)我們的研究很有用。
3) We all know trees are very useful to human.
我們都知道,樹(shù)是非常有用的人。
4) Again, every article is worth a look and most will be useful to you.
同樣,這一章中的每篇文章也都值得一讀,這些知識(shí)很可能會(huì)對(duì)您有用。
5) The canal has proved useful to the county in many ways.
這條水渠給這個(gè)縣帶來(lái)的好處是多方面的。
2、be useful for
1) The slow cooker is very useful for people who go out all day.
慢燉鍋對(duì)于整天都不在家的人來(lái)說(shuō)很有用。
2) We shall find this definition useful for the determination of the criticalload.
采用這個(gè)定義,對(duì)確定臨界荷載是有用處的。
3) This can be useful for performance analysis, error checking, andtroubleshooting.
這對(duì)于性能分析、錯(cuò)誤檢查和故障檢修很有用。
4) This model is very useful for long-tail applications.
這個(gè)模型對(duì)長(zhǎng)尾應(yīng)用程序(long-tail applications)非常有用。
5) Automated tools are also extremely useful for writing and managingrequirements.
自動(dòng)化工具對(duì)編寫(xiě)和管理需求同樣非常有用。