need变否定怎么变
答:needn't和don't need都是否定的意思,但是二者用法不同:needn't是情态动词的否定式,后面加动词原形。don't need是实义动词的否定式,后面加to do不定式。
答:needn't do 、don't need to do其实没什么区别,就是前者是情态动词,后者是行为动词。否定句多用needn't。
答:即需要什么东西时,使用don't need。如果是情态动词,就用needn't。你看句子中有没有其他动词直接加在need后面,有的话need就是情态动词。变成neednt。I need a bag. I don't need a bag.我需要/不需要一个包。I need buy a bag. I needn't buy a bag.我需要/不需要去买一个包了。
答:当need作为实意动词时,否定形式为don't/doesn't/didn't need 例如:I need a pen.I don't need a pen.当need作情态动词时,否定为need not=needn't 例如:I need come to the meeting.I needn't come to the meeting.希望帮到你 ...
答:don't need to do.need to do sth、need sth 中的need是实意动词,表示需要做某事,否定形式是在谓语动词前加助动词进行否定。例:①I need to eat some fruits. 我需要吃一些水果。否定:I don't need to eat any fruits. 我不需要吃水果。②I need some fruits to eat. 我需要些水果来...
答:should have done”表示应该做到而实际上没有做到.You should have started earlier.“ought to have done”表示过去应做某事而实际未做.You ought to have helped him (but you didn't)切记:need作情态动词时仅用于否定句或疑问句中在肯定句中一般用must,have to,ought to或should代替 [返回 ...
答:need是情态动词,不是实义动词,就像can,could之类的,help是动词。He doesn’t need help,need是动词,help是名词 补充:正确回答 He needs help = He need help (need 前一个是实义动词,后一个是情态动词)
答:不可以!如果是don't need 要用TO DO!n.需要, 必需 缺乏; 穷困; 困难; 危急 [常用复]需要的东西 be in need of food 需要食物 daily needs 日用品 =There is no need to hurry). 不用着急。satisfy one's needs 满足某人的需要 from each according to his ability, to each according ...
答:你说的不对 need后面一般+to 使用 应该是u dont need to do sth和u need not to do sth needn't to do中need 是当作"can ,may,must"一类的情态动词使用 而 dont need to do中 "need"是当作动词来用的,否定时要+主动词 do 比如 我不需要去买一辆车 i needn't to buy a car for my...
答:need作为动词,有两种理解,一是做情态动词,二是做行为动词。1)need作为情态动词时,一般不用于肯定句,只用于否定句/疑问句。其后直接加动词原形,没有时态/人称的变化。其否定句为在need后面直接加not,或使用缩写needn't.如:I needn't work hard.其疑问句必须把情态动词need提前,回答也一般借助...
网友评论:
国颖15684841007:
I need some help.(改否定句)① I── ──help.②I── ── ──help(有分析) -
8853褚物
:[答案] 1.I need no help 2.I don't need any help need后加了名词,说明need不是情态动词,那么就是实义动词,因此变否定,不能直接加not,用needn't,必须用don't need
国颖15684841007:
need 的适宜动词和情态动词的否定式应该如何变啊?
8853褚物
: 首先,区分下need的实义动词和情态动词形式 实义动词:一般是need to do或者need sth. 情态动词:跟can may must一样+动词原形. 实义动词的否定:don't need to/don't need sth. 情态动词否定:needn't
国颖15684841007:
关于need变否定句,问句的句型转换题目 -
8853褚物
: need 表示“需要”或“必须”,作情态动词时,仅用于否定句或疑问句中.在肯定句中一般用must, have to, ought to或should 代替.例如:You needn't come so early. Need I finish the work today? --Yes, you must.注意:needn't have done“表示...
国颖15684841007:
请问,need的三种否定形式mustn't,can't,needn't要如何使用呢? -
8853褚物
: musn't do sthcan't do sthneedn't do stn=don't have to do sthThanks
国颖15684841007:
对不起,顺便问一下
8853褚物
: need 有两种用法: (1)need 实义动词,就是普通的动词,有时态和形式的变化.意思是需要.用法是need to do something.变疑问和否定就要借助助动词.如don't need to (2)need 作情态动词,后面直接接动词原形.变否定直接在其后加“not",意思也是“需要” (3)have to do something 意思是不得不做某事,don't have to意思上可以don't need to互换.
国颖15684841007:
need的否定形式可以是need not吗?need to do sth为啥在否定形式时不可以呢?need doing sth在否定形式时
8853褚物
: need 可做行为动词(通常用在肯定句) 和情态动词(通常用在否定句) 例句中明显是当行为动词用的,所以不可用not not形式 need to do (主语是人) need doing (主语是物,表示被动意义 = need to be done)
国颖15684841007:
need做情态动词的时候否定可以连写吗? -
8853褚物
: 当然可以 need表示“需要”或“必须”,作情态动词时,仅用于否定句或疑问句中,在肯定句中一般用must, have to,...
国颖15684841007:
need做情态动词时的肯定句,否定句,一般疑问句例句 -
8853褚物
: 用于表示“需要,必要”之意.做情态动词时,仅用于否定句和疑问句,只有现在时,过去式要用needn't have,疑问式用need+人称?,否定式用need not(即needn't), 1.—Need we leave soon? —Yes, you must.(No, you needn't)2.You needn't have hurried.(=It was not necessary for you to hurry,but you did).你当时不必这么匆忙. 3.He needs to see a doctor.(need to do)
国颖15684841007:
need的用法 -
8853褚物
: need可以作为实意动词,是及物动词,后加动词不定式to do或名词.否定形式常考与情态动词的区别,要区分开,实意动词否定形式是don't need to do不需要去做某事 need也是情态动词.后直接加动词原型.否定形式为needn't,needn't do sth不必做某事 一般情况下肯定的都用实意动词(need to do sth需要做某事) 一般用Must提问的否定回答是No,……needn't.或还有一个用法,sth need to be done = sth need doing 某物需要被…… 例如Flowers need to be watered.= Flowers need watering.
国颖15684841007:
need后加to和不加to的区别 -
8853褚物
: need to do sth是需要做某事,这时need是一个实意动词,当它变否定时要加助动词以否定:do/does/did not need to do sth. 而不加to这时候need是一个情态动词,是一个助动词,就可以在其本身加not否定,后面接动词原形:need do sth/need not do sth. 一个是实意动词,一个是助动词.