助词 v.aux.1.(表示必要、命令或强制)必须,得 You mustn't talk like that.你可不能这样说话。You must do as you are told.你必须遵嘱行事。We must be home by six.我们必须在六点以前回家。 2.(表示肯定的推测)一定是,谅必,八成 This must be your room.这一定是你的房间
must的英式读法是[mʌst]；美式读法是[mʌst]。单词直接源自古英语的moste，意为应当，必须，需。作助动词意思有必须；应当；很可能。作名词意思有必须做的事；未发酵的葡萄汁；发霉。相关例句：1、Something must be done about it.必须得想个办法。2、The dictionary must be on the ...
1，只做情态动词：must,can(could),may(might)……2，可做情态动词又可做实义动词：need,dare 3，具有情态动词特征：have(had,has) to,used to 4，情态动词表猜测；一肯一否三不定；must一肯，must not一否，can，could，would三不定。情态...
在学校我们必须穿校服。2. You mustn't play football in the street .（表示禁止）你不能在街上踢足球。3. --Where is Jim?吉姆在哪里？-- He must be in the classroom .（表示猜测）他一定在教室里。2、have to 表示客观原因，意思是“不得不”，有人称和时态的变化，一般不能用于猜测。
2) 表可能(事实上)。可以指过去时间,也可以指现在时间,但语气更加不肯定。例如:① He may be at home. 他可能在家。\ ② She may not know about it. 她可能不知道这件事。must 1) 表示义务。意为“必须”(主观意志)。例如:① We must do everything step by step. 我们一切都...
—Yes, you must.2)—Must I attend the meeting?—No, you needn't(No, you don't have to). You can ask Tom to go instead.2、在回答need开头的一般疑问句时,肯定回答用must,否定回答用needn't. 如：1)—Need we stay behind after school?—Yes, you must.2)—Need he go now?
1.news不可数，a去掉 2.Jimmy是三单。like后面跟to do 或者doing。所以go改为going或者go前面加to。dont改为doesnt.3.must是情态动词，后面跟动词用原型，takes改为take 4.Jimmy是三单。must是情态动词，后面跟动词用原型。have改为has.sees改为see 5.Mr.Williams是三单。are改为is。tow改为two ...
He must have been here yesterday,―didn't he―？He must have been here for 2 years,―hasn't he―？语法分析：句子含表示推测的 must have done，反意疑问句的形式视具体情况而定。有 already, for two days 等完成时的时间状语时，反意疑问句的助动词用 haven’t；有last night, ...
二.在否定结构中表不许。You mustn't leave here.你不能离开这儿。三.表坚定的建议。You must come and see us as soon as you get to Shanghai.一到上海你得马上来看我们。四.表推测，暗含有很大的可能性，用在肯定句。He must be ill. He looks so pale.他肯定是病了。他的脸色那么苍白...
1． You’re Tom’s good friend, so you must know what he likes best.2． Your mother must be waiting for you now.need 1) need 作情态动词用时, 常用于疑问句、否定句。在肯定句中一般用must, have to, ought to, should代替。1．You needn’t come so early.2. --- Need I...