早教吧作业答案频道 -->英语-->
can能力,may请求,must命令,should建议,can"t猜测,mustn"t禁止.请各造一个句子need 和shouldn"t表示什么?也请各造一个句子
题目详情
can能力,may请求,must命令,should建议,can't猜测,mustn't禁止.请各造一个句子
need 和shouldn't表示什么?也请各造一个句子
need 和shouldn't表示什么?也请各造一个句子
▼优质解答
答案和解析
首先, 必须澄清一下的是, 这些情态动词的用法是互相交叉的
因此, 你的分类并不全面
[常用的分类, 不包括全部情态动词]
1.能力
can/could (有时需使用be able to, manage to)
The baby can't(couldn't) dress himself.
2.许可
can/(could)/may/(might)
Can/May I watch TV tonight?
Yes, you can/may.
3.命令与禁令
must (not), will(军令式的粗暴命令), [shouldn't]
You mustn't play now!
You will finish the job tomorrow!
[据 Practical English Usage, 表示一种强制的,粗暴的命令, 就像预言未来必定发生的事件一般]
4.必要性
must, need, should, ought to, need (not)
Must/Need I come here tomorrow?
No, you needn't.
You should/ought to come here on time.
5.推测
can (not), could (not), must, might (not), may (not)
It can't be!
It must be Tom.
He may be in the office.
6.建议
[should 更常见于 虚拟语气中] had better
I suggest that you should bring some pork tomorrow.
He had better do something for his family, hadn't he?
(注意Tag Question疑问尾句的变化)
另外,情态动词必须带 [不加to的动词不定式] 也就是原形,因此 need to do/need doing的用法不属于情态动词(显然,need这时候有人称变化)
要知道详细的用法, 请查阅一本好的语法书
(A Practical English Grammar, 薄冰, .)
因此, 你的分类并不全面
[常用的分类, 不包括全部情态动词]
1.能力
can/could (有时需使用be able to, manage to)
The baby can't(couldn't) dress himself.
2.许可
can/(could)/may/(might)
Can/May I watch TV tonight?
Yes, you can/may.
3.命令与禁令
must (not), will(军令式的粗暴命令), [shouldn't]
You mustn't play now!
You will finish the job tomorrow!
[据 Practical English Usage, 表示一种强制的,粗暴的命令, 就像预言未来必定发生的事件一般]
4.必要性
must, need, should, ought to, need (not)
Must/Need I come here tomorrow?
No, you needn't.
You should/ought to come here on time.
5.推测
can (not), could (not), must, might (not), may (not)
It can't be!
It must be Tom.
He may be in the office.
6.建议
[should 更常见于 虚拟语气中] had better
I suggest that you should bring some pork tomorrow.
He had better do something for his family, hadn't he?
(注意Tag Question疑问尾句的变化)
另外,情态动词必须带 [不加to的动词不定式] 也就是原形,因此 need to do/need doing的用法不属于情态动词(显然,need这时候有人称变化)
要知道详细的用法, 请查阅一本好的语法书
(A Practical English Grammar, 薄冰, .)
看了 can能力,may请求,mu...的网友还看了以下:
B地在A地的正东方向4千米处,C地在B地的北偏东45°的22千米处.有一直线型的马路l过C地且与线段 2020-03-30 …
请用Y,U,F,A,N,G,当作头文字,造一组给力的英语短句.例如:T.,C,L,就是TodayC 2020-04-08 …
1.有一个C=10pF的电容器,引脚的分布电感为L=2nH.请问当频率f在什么范围时,电容器开始呈 2020-05-13 …
如图,直线l表示一条公路,点A,点B表示两个村庄.现要在公路上造一个车站,并使车站到两个村庄A,B 2020-05-21 …
/l/读音coal中的l读什么?一为什么[kəʊl]电脑发音就想发出的kəʊ?好像最后一个l没有读 2020-06-08 …
已知正数a,b,c和m,n,l满足a+m=b+n=c+l=k请构造一个图形,利用图形面积说明al+ 2020-06-12 …
已知正数a,b,c和m,n,l满足a+m=b+n=c+l=k请构造一个图形,利用图形面积说明al+ 2020-06-12 …
某公园建造一座跨度为L=8米,高度和跨度的比为H:L=1:4的圆弧拱桥,每隔一米竖一根撑住,求第五 2020-06-19 …
在一个面积为350㎡的矩形地基上建造一个仓库,四周是绿地,仓库的长L大于宽W的4倍仓库长L大于宽W4 2020-10-31 …
药液配法配方一NaCl80mmoL/L,KCl50mmoL/L,CaCl25mmoL/L,MgCl2 2020-11-07 …