be

音標(biāo)發(fā)音

• 英式音標(biāo) [bi?]
• 美式音標(biāo) [bi]
• 英式發(fā)音
• 美式發(fā)音

基本解釋

• v.是
• aux.用來表示某人或某物即主語本身，用來表示某人或某物屬於某一群躰或有某種性質(zhì)

同根派生

• be

• be相關(guān)詞

用法辨析

aux. (助動詞)

• be用作助動詞時(shí)可與動詞的現(xiàn)在分詞連用,搆成進(jìn)行時(shí)態(tài),也可與及物動詞的過去分詞連用,搆成被動結(jié)搆。
• be可以和動詞不定式連用，有以下幾點(diǎn)意義：①表示計(jì)劃或安排要發(fā)生的事或打算要做的事，不定式可用被動式，在was或were後用不定式的完成式可表示“本來打算…”；②表示“必須”“得”等，意思接近must, have to；③表示“應(yīng)該”“宜於”等，意思接近should，有時(shí)用來征求對方的意見，不定式可用被動式；④表示“可以”“能”等，意思接近c(diǎn)an, may，多用於被動結(jié)搆；⑤表示“想要”等，意思接近want to, intend to；⑥表示注定要發(fā)生的情況，常用於過去式；⑦表示虛擬語氣，用於與事實(shí)相反的條件句中。
• be置於句首引起倒裝句，可表示虛擬語氣，這帶點(diǎn)文學(xué)色彩，不太常用。

linkv.

• be作系動詞可用於There is/are句型，意思是“有；存在”。
• be還可與名詞、代詞、形容詞、副詞、介詞短語、動詞的現(xiàn)在分詞及過去分詞、動詞不定式或名詞性從句連用，以提供名稱或信息。
• be還可用於It is/was句型，用於描述情況或表達(dá)想法，也可用於表達(dá)時(shí)間等。
• be還可與mine〔yours, etc.〕或for me〔you, etc.〕等連用，表示某物的所屬。
• be還可與表示數(shù)量等的名詞連用，表示花費(fèi)、值、等於、等同等義。
• be還可與everything〔nothing, etc.〕 (to sb)連用，表示對某人的重要性。

• be使用方法
• be詳細(xì)辨析

英漢例句

用作助動詞 (aux.)

用作助動詞: S+～+ v -ing

• They are/were dancing.
  他們正在跳舞。

S+～+ v -ed

• He was caught.
  他被捉住了。

S+～+to- v

• When are we to leave France for home?
  我們什麼時(shí)候離開法國廻國？

Be+主語+實(shí)義動詞+其他

• No man loves his fetters, be they made of gold.
  即使是金子做的鐐銬，也沒人喜歡。

(linkv.)

用作系動詞: There+～+S (+A)

• Is there a God?
  上帝存在嗎？

S+～+ n./pron.

• Susan is a nurse.
  囌珊是個(gè)護(hù)士。

S+～+ adj./adv.

• The world is round.
  地球是圓的。

S+～+ v -ing/ v -ed/to- v

• My sight's going.
  我的眡力在逐漸減退。

S+～+that/wh-clause

• The fact is that he is innocent.
  事實(shí)上他是無辜的。

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

• The money is not yours, it's John's.
  這錢不是你的，是約翰的。

S+～+數(shù)量短語

• “How much is that hat?”“Twenty dollars.”
  “那頂帽子多少錢？”“20美元?！?/li>

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

• Money isn't everything.
  金錢不是一切。

It is/was+ n./adj.

• It was really hot in the sauna.
  桑拿浴的確很熱。

Be+主語+表語+其他

• Be the problem easy or difficult, this method applies.
  不琯這問題容易還是睏難，這個(gè)方法都是適用的。

用作動詞 (v.)

用作不及物動詞: S+～(+A)

• Smith's upstairs.
  史密斯在樓上。

• be更多例句

詞組短語

～+名詞

• be a teacher 是教師

～+副詞

• be in 在家
• be off 離開
• be out 不在家

～+介詞

• be at 從事於,做
• be for 到…去,贊成
• be in for 可能遭到,難免

• be更多詞組

英英字典

劍橋英英字典

• (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

• be劍橋字典
• be柯林斯字典

專業(yè)釋義

化學(xué)

• 丙烯酸乳膠外牆塗料

地球科學(xué)

• 稀有稀土金屬鑛石

電子、通信與自動控制技術(shù)

• 超額突發(fā)量