
若干
若干,一些;许多
I decided not to go, for a number of reasons.
我决定不去 有若干理由
I have a number of things to do today.
我今天有许多事情要做。
His lecture ranged over a number of topics.
他的讲座涉及许多话题。
A number of thin cracks appeared in the wall.
墙上出现了许多细裂缝。
A number of forged tickets are in circulation.
有一些假入场券在流通。
The essay contains a number of factual errors.
文章中有一些与事实不符的错误。
"a number of"是英语中常见的限定性短语,表示"若干"或"许多",用于修饰可数名词复数形式。该短语具有以下核心特征:
数量表达功能
根据牛津英语词典的解释,"a number of"表示不确定但可观的量级,通常指代三个以上的数量,强调复数概念。例如:"A number of students submitted their projects early"(许多学生提前提交了项目)。
语法搭配规则
剑桥英语语法指南指出,该短语后接复数名词时,谓语动词必须采用复数形式。对比句式:"The number of applicants is increasing"(申请者数量在增长)中"the number of"为单数概念。
语用场景分析
柯林斯英语用法辞典强调,该短语多用于正式书面语和学术写作,在日常口语中常被"several""many"等词替代。例如科研论文中常用"There are a number of limitations to this study"来引出多个研究限制。
语义强度梯度
根据《朗文英语语法》,其表意强度介于"some"(一些)和"a lot of"(大量)之间,具体含义需通过上下文判断。例如商务报告中"a number of complaints"可能指代具体统计的投诉数量。
“a number of”是一个常用英语短语,其核心含义是“一些;若干”,但具体用法和细节需要注意以下几点:
A number of students attended the lecture.
(许多学生参加了讲座。)
✗ A number of information is missing.
✓ A number of documents are missing.
A number of issueshave been resolved.
(许多问题已解决。)
The number of participantsis increasing.
(参与者人数在增加。)
✗ A number of peoplewas present.
✓ A number of peoplewere present.
✗ The number of books on the shelf are interesting.
✓ The number of books on the shelfis large.
如果需要进一步区分具体量词的使用场景或更多例句,可以补充说明。
comatosecommitmentscunardfumessuedtingleWurthagrarian reformgrade factorsintegration methodlife raftstolen propertyternary systemticket reservationagaveAnoplocephalidaebicornbourreecodewordscorfdaffodillydehydrocortisonedingotfusafungineintraglacialisomorphousleitmotivmacrostatementNabokovYosemite