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      學(xué)習(xí)啦 > 學(xué)習(xí)英語(yǔ) > 英語(yǔ)單詞 > be to do的正確用法

      be to do的正確用法

      時(shí)間: 燕妮639 分享

      be to do的正確用法

        在英語(yǔ)里,“ be + to do ”結(jié)構(gòu)可用來(lái)表示將來(lái)時(shí)間,下面是學(xué)習(xí)啦小編整理的一些關(guān)于be to do的正確用法,歡迎大家閱讀!

        be to do sth 的正確用法

        1、be + to do表示“想,打算”,相當(dāng)于intend, want。

        If we are to be there before ten, we’ll have to go now.

        如果我們要在十點(diǎn)前到,我們現(xiàn)在就得走。

        以下是be to do sth. 作情態(tài)助動(dòng)詞的用法。

        2、be + to do 表示按計(jì)劃或安排要做的事。

        When are you to leave for home?

        你什么時(shí)候回家?

        She is to be married next month.

        她將于下個(gè)月結(jié)婚。

        The Queen is to visit Japan in a week’s time.

        女王將于一周后訪問(wèn)日本。

        這種結(jié)構(gòu)也可用于過(guò)去。was / were to do sth. 表示曾經(jīng)計(jì)劃要做的事,但并說(shuō)明計(jì)劃是否被執(zhí)行了,所以也可表示曾經(jīng)計(jì)劃但未有實(shí)現(xiàn)的事。例如:

        I felt nervous because I was soon to leave home for the first time.

        我感到很緊張,因?yàn)槲液芸炀鸵状坞x開(kāi)家了。

        They said goodbye, little knowing that they were never to meet again.

        他們告了別,不知道以后再也不會(huì)見(jiàn)面了。

        We were to have told you, but you were not in.

        我們本來(lái)想告訴你的,但是你不在家。

        3、be + to do 表示“可以,可能”,相當(dāng)于may, can。

        The news is to be found in the evening paper.

        這條消息可以在晚報(bào)上見(jiàn)到。

        Such people are to be found everywhere.

        這種人到處都有。

        She is nowhere to be found.

        在哪里也找不著她。

        4、be + to do 表示“應(yīng)該”,相當(dāng)于should, ought to。

        You are to report to the police.

        你應(yīng)該報(bào)警。

        What is to be done?

        應(yīng)該怎么辦呢?

        5、be + to do 表示“必須”,相當(dāng)于must, have to。

        The letter is to be handed to him in person.

        這封信必須親手交給他。

        You are to do your homework before you watch TV.

        看電視之前你得先做完作業(yè)。

        6、be + to do 用于否定句,表示“禁止”,相當(dāng)于mustn’t。

        The books in this room are not to be taken outside.

        這個(gè)室內(nèi)的書籍不得帶出室外。

        You are not to smoke in the reading-room.

        你不可以在閱覽室里吸煙。

        7、be + to do 用于第一人稱疑問(wèn)句,表示征求對(duì)方意見(jiàn)。

        Am I to go on with the work?

        要我繼續(xù)完成這項(xiàng)工作嗎?

        What are we to do next?

        我們下一步該怎么辦?

        8、在虛擬語(yǔ)氣中,不論什么人稱都用were to do sth. 表示對(duì)未來(lái)的假設(shè)。

        If I were to tell you that I killed him, would you believe me?

        要是我告訴你是我殺了他,你會(huì)相信嗎?

        Even if the sun were to rise in the west, I would never do such a thing.

        即使太陽(yáng)從西邊出來(lái),我也決不做這種事。

        9、還有兩個(gè)常用的 be to do sth. 結(jié)構(gòu):be to blame(該受責(zé)備,對(duì)某壞事應(yīng)負(fù)責(zé)任),be to let(待出租)。兩種結(jié)構(gòu)中,用不定式的主動(dòng)形式表示被動(dòng)含義。

        Which driver is to blame for the accident?

        這事故是哪個(gè)司機(jī)的責(zé)任?

        This house is to let.

        這房子要出租。

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