is+it+necessary
答：1、加上to do, 翻译成做……很有必要 2、加上that 从句，翻译成句子加上很有必要，比如说It is necessary that you make a cake. 你做一个蛋糕很有必要。3、加上人，再用前两步的用法，比如说，It is necessary for you
答：was it necessary that my uncle should be informed?意思是，是不是我舅舅必须要被告知？
答：necessary 是形容词，表示某个事物或情况是必要的、需要的。It is necessary（这是必要的）：用来强调某件事情是必须的或必要的。例句：It is necessary to wear a seatbelt while driving.necessary for（对于…是必要的）表示某件事情对于实现另一件事情是必须的。例句：A healthy diet is necessary ...
答：The necessity of English rests with the language being used in most countries in the world as a communicating tool. For example, a German and a Chinese can't speak opposite side's language, but they both know English. And then there is no problem between their language communica...
答：Is It Necessary to have pe According to the graph, great changes have taken place in the number of training classes in the past twenty years. On the one hand, in the last century, the increase of the training classes was not so great. On the other hand, there has been a ...
答：不可以 It is + 形容词+ (For sb) to do sth是 固定用法 意为 某人做什么事情是。。。样的
答：1，It is necessary that he returns the book at once.这是一个虚拟语气句型，从句要用should+动词原形，should可省略，所以正确表达是 It is necessary that he shoud return the book at once.他必须马上把书还回去 2, It is necessary for him to return the book at once.下面这个句型是 ...
答：it is necessary ...表示...是必要的 全句意思就是：他们为了与这些人交流并向他们学习，学习这门语言是必要的
答：It's necessary 可以是句子 (ie. It is necessary 这是必要的)it necessary 被放句子的中间 eg. It is necessary to boil water before drinking 饮用前有必要烧好开水 eg. I find it necessary to boil water before drinking 同样意思, 不同表达, 第二句 it 等于 "boil water before drinking...
答：be necessary for和be necessary to的区别只有一个就是介词不同，所表达的意思不同。1、be necessary for意思是对 ... 是必要的； 必须； 应。如：Is it necessary for us to meet/necessary that we meet?我们非见面不可吗?2、be necessary to意思是为 ... 所必需。如：Food is necessary ...
网友评论：
巢温15270869884：
It is +adj+that的从句用法 -
24251耿胥
： It is +adj+that的从句从句用虚拟语气:should + do;其中should 可以省略.例子:It is important that you arrive on time. 准时到达很重要.It is necessary that he come next Monday. 他有必要下周来.It is natural that he change his mind. 他改变主意很正常.这种形容词包括 important, necessary, impossible, exxential, imperative, natural, urgent, 等,用于表示建议或惊奇等.
巢温15270869884：
在“it is +时间段+since+从句(通常用一般过去时)”句式表示时间多久,一般现在时而不用现在完成时 -
24251耿胥
： It is +一段时间+since...意思是“自......发生以来已经一段时间了”. 如: it is three years since he died.(自)他去世以来已经三年了. It is +一段时间+before...意思是“过了一段时间...才发生” 如: It is 3 years before they accept the fact.过了三年他们才接受这个事实. 这是固定句型.自从发生到现在 当然是个一般现在时的状态了,叙述个事实而已.
巢温15270869884：
it's important/ necessary ...+that 后面该怎么加虚拟语气? -
24251耿胥
： 后面加 should + 动词原形 (或 should + have + 过去分词)或只有动词原型(省略should) 如:It is important that we should speak politely. 我们说话要有礼貌,这的很重要的.
巢温15270869884：
it+和+itself,is的区别 -
24251耿胥
： it它,itself它自己,is是
巢温15270869884：
it is+adj+从句 -
24251耿胥
：[答案] It 15+adj.+that+从句此句型常用来说明对某事的感受,其中it只是形式主语,that引导的从句才是真正的主语,通常放在句尾.适用于此句型的形容词有:necess呷,elear,true,strange,eertain,likely,meaningful,important,pos...
巢温15270869884：
it is +adj + that +从句 等于什么 -
24251耿胥
： it is +adj + for sb to do sth. it is necessary that we learn english. it is necessary for us to learn english.
巢温15270869884：
To clean the rabbit's hutch every day is necessar -
24251耿胥
： It is is necessary to clean the rabbit's hutch every day如不明白请追问,如果满意请【采纳】祝学习进步
巢温15270869884：
固定句式it is 形容词+of or+sb+to do 中of or sb是插入语吗 -
24251耿胥
： 该句式应为:It is +形容词+of/for sb to do sth..意为“某人做某事是……的”.其中of/for sb不叫插入语.of/for sb与后面的不定式构成不定式复合结构.
巢温15270869884：
It's+n+to do sth和It's+adj+for/of+sb todosth -
24251耿胥
： it is +adj+for +n+to do sth It is necessary for student to work hard 或者不加for sb 也行,例如 It is necessary to protect environment. It's time to go home. It's my honor to know you. It's your turn to clean the room.太多了. It is easy for me to answer ...
巢温15270869884：
Greeting each other with a smile is necessar -
24251耿胥
： it is necessaryfor us to greet each other with a smile in our daily life
