菜篮子兴趣思朗文词典

be

B 开头单词四级词汇专八核心词高考词汇

音标发音

  • 英式音标 [biː]
  • 美式音标 [bi]
  • 英式发音
  • 美式发音

基本解释

  • v.是
  • aux.用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质

同根派生

  • be

用法辨析

    aux. (助动词)

  • be用作助动词时可与动词的现在分词连用,构成进行时态,也可与及物动词的过去分词连用,构成被动结构。
  • be可以和动词不定式连用，有以下几点意义：①表示计划或安排要发生的事或打算要做的事，不定式可用被动式，在was或were后用不定式的完成式可表示“本来打算…”；②表示“必须”“得”等，意思接近must, have to；③表示“应该”“宜于”等，意思接近should，有时用来征求对方的意见，不定式可用被动式；④表示“可以”“能”等，意思接近can, may，多用于被动结构；⑤表示“想要”等，意思接近want to, intend to；⑥表示注定要发生的情况，常用于过去式；⑦表示虚拟语气，用于与事实相反的条件句中。
  • be置于句首引起倒装句，可表示虚拟语气，这带点文学色彩，不太常用。

    • linkv.

  • be作系动词可用于There is/are句型，意思是“有；存在”。
  • be还可与名词、代词、形容词、副词、介词短语、动词的现在分词及过去分词、动词不定式或名词性从句连用，以提供名称或信息。
  • be还可用于It is/was句型，用于描述情况或表达想法，也可用于表达时间等。
  • be还可与mine〔yours, etc.〕或for me〔you, etc.〕等连用，表示某物的所属。
  • be还可与表示数量等的名词连用，表示花费、值、等于、等同等义。
  • be还可与everything〔nothing, etc.〕 (to sb)连用，表示对某人的重要性。

英汉例句

    用作助动词 (aux.)

    用作助动词: S+～+ v -ing

  • They are/were dancing.
    他们正在跳舞。

    • S+～+ v -ed

  • He was caught.
    他被捉住了。

    • S+～+to- v

  • When are we to leave France for home?
    我们什么时候离开法国回国？

    • Be+主语+实义动词+其他

  • No man loves his fetters, be they made of gold.
    即使是金子做的镣铐，也没人喜欢。

    • (linkv.)

    用作系动词: There+～+S (+A)

  • Is there a God?
    上帝存在吗？

    • S+～+ n./pron.

  • Susan is a nurse.
    苏珊是个护士。

    • S+～+ adj./adv.

  • The world is round.
    地球是圆的。

    • S+～+ v -ing/ v -ed/to- v

  • My sight's going.
    我的视力在逐渐减退。

    • S+～+that/wh-clause

  • The fact is that he is innocent.
    事实上他是无辜的。

    • S+～+mine〔yours, etc.〕/for me〔you, etc.〕

  • The money is not yours, it's John's.
    这钱不是你的，是约翰的。

    • S+～+数量短语

  • “How much is that hat?”“Twenty dollars.”
    “那顶帽子多少钱？”“20美元。”

    • S+～+everything〔nothing, etc.〕 (+ to sb)

  • Money isn't everything.
    金钱不是一切。

    • It is/was+ n./adj.

  • It was really hot in the sauna.
    桑拿浴的确很热。

    • Be+主语+表语+其他

  • Be the problem easy or difficult, this method applies.
    不管这问题容易还是困难，这个方法都是适用的。

    • 用作动词 (v.)

    用作不及物动词: S+～(+A)

  • Smith's upstairs.
    史密斯在楼上。

词组短语

    ～+名词

  • be a teacher 是教师

    • ～+副词

  • be in 在家
  • be off 离开
  • be out 不在家

    • ～+介词

  • be at 从事于,做
  • be for 到…去,赞成
  • be in for 可能遭到,难免

英英字典

    剑桥英英字典

  • (DESCRIPTION) used to say something about a person, thing, or state, to show a permanent or temporary quality, state, job, etc.
  • (ALLOW) used to say that someone should or must do something
  • (FUTURE) used to show that something will happen in the future
  • (CAN) used to say what can happen
  • (EXIST) to exist or live
  • (CONTINUE) used with the present participle of other verbs to describe actions that are or were still continuing
  • (PASSIVE) used with the past participle of other verbs to form the passive

    • 柯林斯英英字典

  • You use be with a present participle to form the continuous tenses of verbs.
  • be going to&rarrsee going
  • You use be with a past participle to form the passive voice.
  • You use be with an infinitive to indicate that something is planned to happen, that it will definitely happen, or that it must happen.
  • be about to&rarrsee about
  • You use be with an infinitive to say or ask what should happen or be done in a particular situation, how it should happen, or who should do it.
  • You use was and were with an infinitive to talk about something that happened later than the time you are discussing, and was not planned or certain at that time. (was)(were)
  • You can say that something is to be seen, heard, or found in a particular place to mean that people can see it, hear it, or find it in that place. (seen)(heard)(found)
  • You use be to introduce more information about the subject, such as its identity, nature, qualities, or position.
  • You use be, with "it" as the subject, in clauses where you are describing something or giving your judgment of a situation. (it)
  • You use be with the impersonal pronoun "there" in expressions like there is and there are to say that something exists or happens. (there)
  • You use be as a link between a subject and a clause and in certain other clause structures, as shown below.
  • You use be in expressions like the thing is and the point is to introduce a clause in which you make a statement or give your opinion. (the thing is##thing)(the point is)
  • The form "be" is used occasionally instead of the normal forms of the present tense, especially after "whether." (be)(whether)
  • If you talk about what would happen if it wasn't for someone or something, you mean that they are the only thing that is preventing it from happening.
  • Belgium

专业释义

    化学

  • 丙烯酸乳胶外墙涂料

    • 地球科学

  • 稀有稀土金属矿石

    • 电子、通信与自动控制技术

  • 超额突发量