Be supposed to do 的supposed什么词性

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adj 假设的；想像上的；假定的。 a supposed case 一个假设的情况。也可能是suppose的过去式或分词suppose 及物动词 1.设想，推测；猜想某事[某人]如何 (to do to be)。2.假定〔证题时用语，和 given, provided 通用〕。3.意味着；必须先假定，以…为必需条件。4.〔现在分词或祈使语气〕如果…好不好。5.〔口语〕如果(＝if)。I suppose you are right. 我想你说得对。 I should suppose him to be about fifty. 我可也猜他是五十岁左右。 Supposing [Suppose] you miss your tiger, he is not likely to miss you. 你如果打不着老虎，老虎不见得吃不着你。 Purpose supposes foresight. 目的就意味着预见。 S- we try. 去试试吧。 S- we go to bed. 咱们去睡吧。 be supposed to (do) 1. …(在职务上)要，应该(You are supposed to be here at eight every day. 你应该每天八点钟到这里)。 2. 〔用于否定句〕〔口语〕不许，不准 (You"re not supposed to smoke here. 不许你在这儿吸烟)。不及物动词 推测，料想。 I suppose so. 我想是的。

）suppose+that表推测，假定，假如，认为例如:Isupposethatyouareright.我想你是对的。Itissupposedthathewasathomeduringthattime.据推测，他当时是在家的。Suppose(that)thisisthemostbeautifulfloweryoucanfindontheearth,then...假如这就是你能在地球上找到的最美丽的花朵，那么...（注意:前半句是条件状语从句，then后才是主句）（2）suppose用于祈使句中，表示“让……”。如：Supposewegoforaswim.(=Let"sgoforaswim.)让我们去游泳吧。（3）suppose+名词+tobe表示“认为……是……”。Manypeoplesupposehimtobeover50.许多人认为他已经50多岁了。

supposed是suppose的过去式和过去分词，他是一个单词，但不是词根。那个词组应该是be supposed to do，你那样说说明你没有理解，这是一个作谓语的词组，supposed不是过去式，而是过去分词，相当于表示被动，因为suppose有要求，期望，认为的意思，被要求做什么，意思就是应该做什么，你是初中生吧，记住这一个词组就行，其他不用深究。这个词组很重要。suppose [sə"pəuz]conj. 假使…结果会怎样vt. 假设；认为；让（虚拟语气）；推想vi. 猜想；料想

很高兴能够为您解答！当我们学习英语时，经常会遇到一些非常相似的词汇和表达，但其实它们之间有着微妙的区别。比如“be supposed to do” 和 “supposed to do”，这两个表达看起来非常接近，但又似乎不完全相同。那么这两者到底有什么区别呢？让我们来一探究竟。以下是我做的表格:总体来说，“be supposed to do” 表示一种期望或责任感，通常是从外部获得的规定、期望等；而“supposed to do” 则表示一种约定俗成的惯例或者大家都认为理所当然的情况。两者语法结构不同，在实际使用中要根据具体情境选择合适的表达方式。希望可以帮到你，祝你生活愉快！

读 se"poz原型是suppose

1想, 设想, 猜测; 认为, 以为；I suppose you are right.2[和given, provided 通用]假定；Let"s suppose (that) the news is true.3包含, 意味着; 必须有, 以...为必需条件；4[用于祈使语气]让, ...如何, ...怎么样；(=if)[口]如果Suppose your father saw you now, what would you say？ 及物动词 vt. [W]1.猜想,以为[Y][+(that)][O2][O8]I suppose he is still in town. 我想他还在城里。2.期望;认为必须,认为应该[H][O2][O8]You"re not supposed to take the books out of the room. 这些书不能拿出屋去。3.必须以...为前提Every effect supposes a cause. 任何事的产生都必然有其原因。4.(用于祈使语气)让...[+(that)]Suppose we set out at six. 我们六点动身吧。5.假定[+(that)][O2]Suppose the car should break down again. 假定汽车又出毛病了。

suppose常指根据一些证据而得出的推断，强调暂时性，可接不定式（特别是to be）、介词短语、形容词等的复合结构，接从句等，作“假定，猜想”等解。如： We all supposed him to be an actor．我们都以为他是个演员。 Let"s suppose he is right． 让我们假定他是对的。guess表达说话人在缺乏了解和证据时所陈述的见解，其后可接名词、复合宾语、从句。如： I should guess the old woman to be about sixty．我猜这位老太太六十岁上下。 Guess how much it is worth．猜猜看这东西值多少钱。

it是“to be sent as soon as possible”的形式主语.be supposed to do 是理应做某事的意思。句子翻译：这份报道很重要，所以应尽快的发出去。it is supposed to do 经常这么搭配。快给我分啊！

一般来说，原形可以，过去式不可以（诗歌等特殊行文的除外）

be supposed to do与should是一样的意思“理应做某事”“被期望做某事”。You are supposed to get home at 5pm.你五点就应该到家的。be worry about没有这样的用法。因为be动词后面是不可以接动词原形的！be worried about doing 是担心做某事，担心而已，不存在强调动作或状态。

suppose是动词,supposing是现在分词,都可用作连词,引导条件状语从句,意为“假若”“如果”等suppose用作连词引导条件状语从句时,它必须置于主句之前,但supposing用作连词引导条件状语从句时,则可置于主句之前,也可以置于主句之后

be supposed to （do）：应该；被期望；理应.固定用法

be supposed to 和should都有“应该”的意思 ,有时可互换，但它们的用法也是有点不同。1、be supposed to有人称和数的变化。侧重于强调“被期望”，就是说，大家希望你这样做但你不一定要这样做；也可用来表示劝告、建议、义务、责任等，相当于情态动词should。2、should 没有人称和数的变化.既可指有责任或义务 “应该”做某事，也可指建议或劝告某人“应该”做某事，还可指推测某事或某情况“应该”会发生“等。语气更强烈。如：1). You are supposed to liten to your boss.你应该听你老板的。2).He is supposed to work hard. 他应该努力工作。3). We should help each other. （表示责任）=We are supposed to help each other .我们应该互相帮助。4). You should see a doctor.（表示建议或劝告）=You are supposed to see a doctor .你应该去看医生。5).They should be there by now, I think. (表示推测）我想现在他们都已经到了。

是动词suppose的过去分词。根据查询相关信息显示，weresupposedto中supposed的词性是动词suppose的过去分词，suppose的基本意思是猜想、以为、假定。supposed，英语单词，主要用作为形容词，动词。

现在式和过去式

如果就是supposing和supposed的话，用法倒没什么不同吧，都是形容词，是意思不同而已。但是你举的例子里面，supposing是由动词suppose变形来的（因为动词要充当主语要以动名词形式或者动词不定式），所以supposed跟这个句子里面的supposing没有可比性

要根据上下文判断,在课文中应该是省略了主句.

are supposed tobe supposed to 英[bi: su0259u02c8pu0259u028azd tu:] 美[bi su0259u02c8pozd tu] v. 应该，被期望; [网络] 应该,理应; 应该,被期望; 被期望/被要求; [例句]And now that they were easy to trade, why shouldn " t they be worth what they were supposed to be worth&$ 500,000?不过，既然它们易于交易，为什么它们不应该按照它们原本应该具有的价值50万美元来进行估价呢？

是

这两个词：都是动词,都有“认为、想”之意； 不同的是：think “认为、想”；suppose“认为、以为”、“设想、猜想”. 相比较,think 的语气要比suppose更强,更肯定.后者较弱且有“猜测、设想”含义在内.

be supposed to do…固定用法，相当于should。这里的supposed已经变为形容词，你可以在字典里查到。

因为用法的be supposed to be. ..

supposed读音：英（su0259u02c8pu0259u028azd）、美（su0259u02c8pou028azd）。释义：adj：假定的，据说的；被要求的；被允许的；坚信的，期望的。v：认为，推断；假定，设想；（婉转表达）我看，要不；必须做；（理论）要求以……为前提（suppose的过去式和过去分词）。同近义词：1、adj：假定的；被信以为真的；想象上的。assumed/presumptive.2、v：假定（suppose的过去分词）。Presumed.双语例句：1、These supposed professional opinions are just a cover for late payment.这些所谓的专业观点不过是延迟交款的幌子罢了。2、He only valued the supposed benefits of the project and ignored the risks of it.他只看重项目可能带来的利益，而忽视了它的风险。3、These supposed claims will only cause unnecessary public panic.这些假定的说法只会引起公众不必要的恐慌。4、You"re not supposed to park here.你不应该把车停在这儿。5、Oh,that reminds me:I"m supposed to have dinner with my professor tomorrow.噢，这倒提醒我了，我明天应该跟教授吃晚饭。

supposed这个单词的读音是 /su0259u02c8pou028azd/。supposed的意思是“假定的；所谓的；认为的”，通常做为形容词使用。它表示一种虚假的、未经证实的、假定的或理论性的情况。例如，We cannot act on suppositions, we must wait for concrete evidence. （我们不能凭假设行事，必须等待具体的证据。）同义词包括：1、Presumed： 假定的，假设的，推定的。2、Alleged： 所谓的，涉嫌的，声称的。3、Hypothetical： 假设的，假想的，推测的。supposed例句1、She is supposed to come at 8 o"clock, but it"s 9 now and she hasn"t arrived. (她应该8点来的，可现在已经9点了，她还没来。)2、The plane was supposed to take off at 3 o"clock, but it was delayed by bad weather. (这架飞机应该3点起飞，但是因为天气不好而延误了。)3、He is supposed to be an expert in this field, but he doesn"t seem to know much about it. (他应该是这个领域的专家，但他似乎对此不太了解。)4、The company is supposed to pay us on the 15th of every month, but they are always late. (公司应该在每个月的15号给我们发工资，但是他们总是拖欠。)5、Sarah was supposed to study for the exam, but she went out with her friends instead. (Sarah应该复习考试，但她和朋友出去玩了。)6、The phone was supposed to be fixed by yesterday, but it"s still not working. (这部手机应该昨天修好了，但还是没法用。)7、The hotel was supposed to be five-star, but the rooms were small and the service was poor. (这家酒店应该是五星级的，但房间很小，服务也不好。)8、You were supposed to call me last night, but you didn"t. (你应该昨晚给我打电话的，但是你没有。)9、The box was supposed to contain four books, but one was missing. (这盒子里应该有四本书，但少了一本。)10、The project was supposed to be finished by the end of the month, but it"s not even halfway done. (这个项目应该在月底完成，但现在连一半都没做完。)

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besupposedto的用法用法一：besupposedto...其中to是动词不定式符号，不是介词，其后要跟动词原形。当besupposedto...的主语是“人”时，意为“应该……”；“被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should。如：everyoneissupposedtowearaseat-beltinthecar.每个人在汽车里都应该系安全带。teachersaresupposedtotreatallthestudentsalike.老师应该对所有的学生一视同仁。用法：当besupposedto...的主语是“物”时，它表示“本应；本该”，用于表示“某事本应该发生而没有发生”。如：thenewlawsaresupposedtopreventcrime.这些新法令本应该起到防止犯罪的作用。thetrainwassupposedtoarrivehalfanhourago.火车本应在半小时之前到达。用法三：besupposedto后面接“have+过去分词”时，表示“本应该做某事而没做”。如：youaresupposedtohavehandedinyourhomeworkbynow.现在你应该已经把作业交上来了。heissupposedtohavearrivedanhourago.他应该一小时前就到了。用法四：besupposedto...的否定结构为benotsupposedto...,它常用于口语中，意为“不被许可；不应当”。如：shewasnotsupposedtobeangryaboutthat.她本不该为那件事而生气的。youarenotsupposedtosmokeonthebus.你不应该在公共汽车上吸烟。

besupposedto的用法用法一：besupposedto...其中to是动词不定式符号，不是介词，其后要跟动词原形。当besupposedto...的主语是“人”时，意为“应该……”；“被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should。如：everyoneissupposedtowearaseat-beltinthecar.每个人在汽车里都应该系安全带。teachersaresupposedtotreatallthestudentsalike.老师应该对所有的学生一视同仁。用法：当besupposedto...的主语是“物”时，它表示“本应；本该”，用于表示“某事本应该发生而没有发生”。如：thenewlawsaresupposedtopreventcrime.这些新法令本应该起到防止犯罪的作用。thetrainwassupposedtoarrivehalfanhourago.火车本应在半小时之前到达。用法三：besupposedto后面接“have+过去分词”时，表示“本应该做某事而没做”。如：youaresupposedtohavehandedinyourhomeworkbynow.现在你应该已经把作业交上来了。heissupposedtohavearrivedanhourago.他应该一小时前就到了。用法四：besupposedto...的否定结构为benotsupposedto...,它常用于口语中，意为“不被许可；不应当”。如：shewasnotsupposedtobeangryaboutthat.她本不该为那件事而生气的。youarenotsupposedtosmokeonthebus.你不应该在公共汽车上吸烟。

suppose [su0259"pu0259uz] vt.1. 假使，假定：Supposing he isn"t out, how can I do then?假定他没出去，我该怎么办呢?Let"s first suppose the second defense line has been destroyed.我们先来假定这第二条防线已被摧毁。2. [用于祈使句]让：Suppose we wait until tomorrow.咱们就等到明天吧。Suppose I tell you.我来告诉你吧。3. 猜想，推测：I suppose he"ll come back now.我想他这会儿该回来了。You can"t suppose whom I met in the street.你准猜不着我在大街上看见谁啦。4. 认为，以为：What do you suppose I will do?你认为我会做什么?5. 意味着；说明(或证明)…的事实(或情况)：The number of the cars supposes that the city traffic would get busier and busier.这些汽车的数量意味着该市的交通会越来越拥挤。That doesn"t suppose you were absent at the scene of the crime.那并不能说明你不在犯罪现场。6. 假定…的存在；需要…的存在为先决条件：First, we have to suppose that she was out to make money.首先，我们得假定她抛头露面是为了赚钱。7. [用于被动语态]认为应该，认为必须；认为…必要；[口语]认为可以：I"m not supposed to be at the party.我不该在聚会上露面。The motorbike is supposed to make annoying noise.摩托车当然会发出令人感到烦恼的噪音。vi.猜想，料想；认为：No need to suppose about.没必要胡乱猜疑。Say as you suppose.怎么想的就怎么说。conj.1. 假使，假如2. 假使…结果如何(或怎样)希望我的回答 对你有所帮助 如有疑问 请在线交谈 祝你：天天开心 心想事成 O(∩_∩)O ...就是这样了

supposed be supposed to 的用法 用法一：be supposed to...其中to是动词不定式符号,不是介词,其后要跟动词原形.当be supposed to...的主语是“人” 时,意为“应该……”；“被期望……”,它可以用来表示劝告、建议、义务、责任等,相当于情态动词should.如： Everyone is supposed to wear a seat-belt in the car. 用法二：当be supposed to...的主语是“物”时,它表示“本应；本该”,用于表示“某事本应该发生而没有发生”.如： The new laws are supposed to prevent crime.这些新法令本应该起到防止犯罪的作用. 用法三：be supposed to后面接“have + 过去分词”时,表示“本应该做某事而没做”.如： You are supposed to have handed in your homework by now. 现在你应该已经把作业交上来了. He is supposed to have arrived an hour ago.他应该一小时前就到了. 用法四：be supposed to...的否定结构为be not supposed to...,它常用于口语中,意为“不被许可；不应当”.如： She was not supposed to be angry about that.她本不该为那件事而生气的. You are not supposed to smoke on the bus.你不应该在公共汽车上吸烟.

因为他是一个非限定定语，从句它引导的是一个比较直白的一个统计，所以说不能用引导宾语，从句加载的

expect希望 supposed建议 should应该

suppose常指根据一些证据而得出的推断,强调暂时性,可接不定式（特别是to be）、介词短语、形容词等的复合结构,接从句等,作“假定,猜想”等解.如：We all supposed him to be an actor．我们都以为他是个演员.Let"s suppose he is right． 让我们假定他是对的.guess表达说话人在缺乏了解和证据时所陈述的见解,其后可接名词、复合宾语、从句.如：I should guess the old woman to be about sixty．我猜这位老太太六十岁上下.Guess how much it is worth．猜猜看这东西值多少钱.

besupposedto的用法用法一：besupposedto...其中to是动词不定式符号，不是介词，其后要跟动词原形。当besupposedto...的主语是“人”时，意为“应该……”；“被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should。如：everyoneissupposedtowearaseat-beltinthecar.每个人在汽车里都应该系安全带。teachersaresupposedtotreatallthestudentsalike.老师应该对所有的学生一视同仁。用法：当besupposedto...的主语是“物”时，它表示“本应；本该”，用于表示“某事本应该发生而没有发生”。如：thenewlawsaresupposedtopreventcrime.这些新法令本应该起到防止犯罪的作用。thetrainwassupposedtoarrivehalfanhourago.火车本应在半小时之前到达。用法三：besupposedto后面接“have+过去分词”时，表示“本应该做某事而没做”。如：youaresupposedtohavehandedinyourhomeworkbynow.现在你应该已经把作业交上来了。heissupposedtohavearrivedanhourago.他应该一小时前就到了。用法四：besupposedto...的否定结构为benotsupposedto...,它常用于口语中，意为“不被许可；不应当”。如：shewasnotsupposedtobeangryaboutthat.她本不该为那件事而生气的。youarenotsupposedtosmokeonthebus.你不应该在公共汽车上吸烟。

很高兴能够为您解答！当我们学习英语时，经常会遇到一些非常相似的词汇和表达，但其实它们之间有着微妙的区别。比如“be supposed to do” 和 “supposed to do”，这两个表达看起来非常接近，但又似乎不完全相同。那么这两者到底有什么区别呢？让我们来一探究竟。以下是我做的表格:总体来说，“be supposed to do” 表示一种期望或责任感，通常是从外部获得的规定、期望等；而“supposed to do” 则表示一种约定俗成的惯例或者大家都认为理所当然的情况。两者语法结构不同，在实际使用中要根据具体情境选择合适的表达方式。希望可以帮到你，祝你生活愉快！

1.be supposed to 的用法 用法一：be supposed to...其中to是动词不定式符号,不是介词,其后要跟动词原形.当be supposed to...的主语是“人” 时,意为“应该…… ”；“被期望……”,它可以用来表示劝告、建议、义务、责任等,相当于情态动词should.如： Everyone is supposed to wear a seat-belt in the car. 每个人在汽车里都应该系安全带. Teachers are supposed to treat all the students alike. 老师应该对所有的学生一视同仁. 用法：当be supposed to...的主语是“物”时,它表示“本应；本该”,用于表示“某事本应该发生而没有发生”.如： The new laws are supposed to prevent crime.这些新法令本应该起到防止犯罪的作用. The train was supposed to arrive half an hour ago.火车本应在半小时之前到达. 用法三：be supposed to后面接“have + 过去分词”时,表示“本应该做某事而没做”.如： You are supposed to have handed in your homework by now. 现在你应该已经把作业交上来了. He is supposed to have arrived an hour ago.他应该一小时前就到了. 用法四：be supposed to...的否定结构为be not supposed to...,它常用于口语中,意为“不被许可；不应当”.如： She was not supposed to be angry about that.她本不该为那件事而生气的. You are not supposed to smoke on the bus.你不应该在公共汽车上吸烟. 2. tell us what happened 是 告诉我们发生了什么.既然是发生了,则就是过去式了,所以要加ed形式的过去式 英语除了记住单一的语法,还要根据语境去理解句子的意思和语句所要表达的内容,多读多看多听就会慢慢理解的

查下语法书⊙u2200⊙？

be supposed to do sth 应该做 ; 应该做某事Be supposed to do something 本应该做某事 ; 应该 ; 应该做某事

suppose 一般两种用法suppose + 宾语从句，表示猜，我认为，想be supposed to do是因为suppose前面有个谓语的，supposed在这里是被动语态用法，表示应该。所以两种用法而已，你可以说I was supposed to meet him at 2pm, but he didn"t show up.我该和他下午2点见的，但他没来。I suppose you knew it.我猜你早就知道了

http://cn.bing.com/dict/supposed%20that. 这个是supported that 解释 provided that+句子 只要什么什么，是条件状语从句点下采纳！！！

本应该做某事（实际没做）。

to do

（应该是besupposedto后要用原型。）A.tobesentbesupposetodosth.(也就是后用动词原形）译为被期望或被要求做某事。是一个固定句型,记住它就行，以后做题会方便。

被动的假设,期望,认为等表示认为应该......You"re not supposed to take the books out of the room.这些书不能拿出屋去。

I suppose 是"我认为 我推测"be supposed to是"应该"你说的这几种 ，同样期待答案

suppose如何用suppose的基本意思是“猜想；以为；假定”，但在具体的语言环境中意义不止于此，其用法如下：1.suppose+that从句，表示“猜测；假定”。如：Isupposethatyouareright.我想你是对的。YoucansupposethatAequalsB.你可以假定A等于B。2.suppose+名词/代词+tobe...，表示“认为……是……”。如：Manypeoplesupposehimtobeover50.许多人认为他已经50多岁了。3.suppose用于祈使句中，表示“让……”。如：Supposewegoforaswim.(=Let"sgoforaswim.)让我们去游泳吧。besupposedto的用法用法一：besupposedto...其中to是动词不定式符号，不是介词，其后要跟动词原形。当besupposedto...的主语是“人”时，意为“应该……”；“被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should。如：Everyoneissupposedtowearaseat-beltinthecar.每个人在汽车里都应该系安全带。Teachersaresupposedtotreatallthestudentsalike.老师应该对所有的学生一视同仁。用法：当besupposedto...的主语是“物”时，它表示“本应；本该”，用于表示“某事本应该发生而没有发生”。如：Thenewlawsaresupposedtopreventcrime.这些新法令本应该起到防止犯罪的作用。Thetrainwassupposedtoarrivehalfanhourago.火车本应在半小时之前到达。用法三：besupposedto后面接“have+过去分词”时，表示“本应该做某事而没做”。如：Youaresupposedtohavehandedinyourhomeworkbynow.现在你应该已经把作业交上来了。Heissupposedtohavearrivedanhourago.他应该一小时前就到了。用法四：besupposedto...的否定结构为benotsupposedto...,它常用于口语中，意为“不被许可；不应当”。如：Shewasnotsupposedtobeangryaboutthat.她本不该为那件事而生气的。Youarenotsupposedtosmokeonthebus.你不应该在公共汽车上吸烟。

besupposedto和should都有“应该”的意思，后面都是跟动词原形,有时可互换。但它们的用法有点不同。1、besupposedto强调客观上，侧重于强调“被期望”，“猜想会.......”常用于被动语态中。有人称和时态的变化。2、should主观上的原因，“应该……”。没有人称和时态变化。如：1).Youaresupposedtocomehereontime.=Youshouldcomehereontime.2).Youshouldgetupearlier.3).Heissupposedtointroducehimselffirst.=Heshouldintroducehimselffirst.4).Thetrainwassupposedtoarrivehalfanhourago.火车本应在半小时之前到达。

1.besupposedto对现在或者将来的事推测例如Heissupposedtobeintheclassroomnow.Youaresupposedtofinishtotheworksoon.2.besupposedtohavedone对过去发生的事推测或虚拟应该选CWhatdoyousuppose___tohear之中的“doyousuppose”对于“doyouthink”是插入语，你可以从句中把它删去，再来做题

suppose如何用 suppose的基本意思是“猜想；以为；假定”,但在具体的语言环境中意义不止于此,其用法如下： 1.suppose + that 从句,表示“猜测；假定”.如： I suppose that you are right.我想你是对的. You can suppose that A equals B.你可以假定A等于B. 2.suppose +名词 / 代词 + to be...,表示“认为……是……”.如： Many people suppose him to be over 50.许多人认为他已经50多岁了. 3.suppose用于祈使句中,表示“让……”.如： Suppose we go for a swim.(= Let"s go for a swim.) 让我们去游泳吧. be supposed to 的用法 用法一：be supposed to...其中to是动词不定式符号,不是介词,其后要跟动词原形.当be supposed to...的主语是“人” 时,意为“应该…… ”；“被期望……”,它可以用来表示劝告、建议、义务、责任等,相当于情态动词should.如： Everyone is supposed to wear a seat-belt in the car. 每个人在汽车里都应该系安全带. Teachers are supposed to treat all the students alike. 老师应该对所有的学生一视同仁. 用法：当be supposed to...的主语是“物”时,它表示“本应；本该”,用于表示“某事本应该发生而没有发生”.如： The new laws are supposed to prevent crime.这些新法令本应该起到防止犯罪的作用. The train was supposed to arrive half an hour ago.火车本应在半小时之前到达. 用法三：be supposed to后面接“have + 过去分词”时,表示“本应该做某事而没做”.如： You are supposed to have handed in your homework by now. 现在你应该已经把作业交上来了. He is supposed to have arrived an hour ago.他应该一小时前就到了. 用法四：be supposed to...的否定结构为be not supposed to...,它常用于口语中,意为“不被许可；不应当”.如： She was not supposed to be angry about that.她本不该为那件事而生气的. You are not supposed to smoke on the bus.你不应该在公共汽车上吸烟.

besupposedto的用法用法一：besupposedto...其中to是动词不定式符号，不是介词，其后要跟动词原形。当besupposedto...的主语是“人”时，意为“应该……”；“被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should。如：Everyoneissupposedtowearaseat-beltinthecar.每个人在汽车里都应该系安全带。Teachersaresupposedtotreatallthestudentsalike.老师应该对所有的学生一视同仁。用法：当besupposedto...的主语是“物”时，它表示“本应；本该”，用于表示“某事本应该发生而没有发生”。如：Thenewlawsaresupposedtopreventcrime.这些新法令本应该起到防止犯罪的作用。Thetrainwassupposedtoarrivehalfanhourago.火车本应在半小时之前到达。用法三：besupposedto后面接“have+过去分词”时，表示“本应该做某事而没做”。如：Youaresupposedtohavehandedinyourhomeworkbynow.现在你应该已经把作业交上来了。Heissupposedtohavearrivedanhourago.他应该一小时前就到了。用法四：besupposedto...的否定结构为benotsupposedto...,它常用于口语中，意为“不被许可；不应当”。如：Shewasnotsupposedtobeangryaboutthat.她本不该为那件事而生气的。Youarenotsupposedtosmokeonthebus.你不应该在公共汽车上吸烟。