essential与 necessary的区别

英语虚拟语气
It is essential that everyone (should) be prepared for emergency.
问:做好准备不是主动吗?
we insist that jack (should ) be sent to hospital right now
问:马上送去医用go为什么要用过去时?
说错了..是说为什么不直接用send干嘛要用过去分词啊

What is becoming essential in the course of economic globalizationg according to the aurthor?
怎么翻译啊?

AT shcool,it is essential that every child--equally regardless of family background
AtreatingBtreatedCbe treated Dis treated

英语问题.
It was essential that all the necessary documents ________ to the president’s office being the end of this month.
A) be handed in B) must be handed in
C) should hand in D) had been handed in

It is essential that these application forms ______ back as early as possible. A．must be sent B．will be sent C．are sent D．be sent

water is very essential for human beings
保持原句意思
Water is very ------- ------- human beings

句子语法 英语
Animals that die to produce non-essential luxury items include rabbits,foxes,seals and so on .
是由that引导的定语从句吗

问英语作业25
25. It is essential that these application forms ________ back as
early as possible.
A. must be sent
B. will be sent
C. are sent
D. be sent

It is essential that the program _________ into the computer
A：load
B：be loaded
C：will load
D：loads

Don't you think it essential that every resident of Nanjing should spare no effort to make contributions to Nanjing 2014 Youth Olympic Games?
全句意思知道spare no effort 怎么翻译?
另外it essential 怎么翻译

The participation of the boys (was,were) essential to the success of the ex

英语翻译
21.It is essential that effective actions should be taken to end the situation.
22.It is no doubt that special attention must be paid to the problem of ______________.
23.But both ______________ and ______________ have disadvantages.For example,______________.Which to choose,______________ or ______________?Careful consideration is necessary before you make your own choice.
24.From what has been discussed above,we may reasonably arrive at the conclusion that ______________.
25.We must search for a quick action,because the present situation of ______________ is grievous,if allowed to proceed,will certainly lead to ______________.
26.No doubt,if we ignore the problem,there is every chance that ______________ will be put in danger.
27.We need to take a second look at the matter from a wider standpoint,otherwise,we won’t ______________.
作文的模板。

这句话语法表达对不对?
Remove ambition and the essential elements of organization seem to fly apart.
以前在一本书上看到的例子,好像是这样.但是现在看不大懂,请分析下这句话是否正确以及语法结构.

forces have arisen that seek to change america's essential nature.如何理解句中的that作的成分?求翻
如何分析得出是that 引导定语从句，在从句中做主语。

Unable to find some essential data
后面还有 Please ensure that the game si installed correctly.If the problem persists,please contact technical support ,

关于英语的问题
Because exercise is essential for keeping health 中的exercise 是不是应该用exercising?为什么还有
be 后面用的过去分词应该用形容词修饰还是用副词修饰
还有 为什么有时候动词表被动前面没有be动词，什么情况下不用

It's essential that every child ___ the same education opportunity.
A.had B.would have C.could D.should
选什么?为什么?

英语翻译
We must pour out a large stream of essential words,unhampered by stops,or qualifying adjectives,or finite verbs.请问这句话怎么翻译,是状语从句吗?是什么状语从句?unhampered是修饰什么的?前面省略了什么?
但看到下面的回答，我的头更大了，各种理解各种回答，我还是没搞清到底是定语从句还是状语从句还是同位语从句？

英语造句
用
It is common that
It is essential to
can·t wait to do sth.
manage to do sth.
disadvadtages
treat 写一小段话 急
是disadvantages

_____good knowledge of several languages is essential to___study
of world history.
第一个为什么填a?第二个为什么the?

and lacking something that which essential 请问这里面的that
全句式这样的！An idea is not perfect！it is but a partial image，and lacking that something which is essential seldom come ture！
刚才提问错了，that 应该在something前面的！

英语语法 求教
Essential English is a course for the teaching of English to foreign students.
请问 ：to foreign students 到底是修饰哪个名词的“定语”呢?
是 course 的,the teaching 的 ,还是 english 的,这样的问题困扰了我很长时间了,是否哪位大侠能“掰开了揉碎了,帮我解开这个”结“呢?
期待您们的回复.

请帮我看看这1句英文有没有问题
there are 2essential factors when people who want to sell a company.

初三英语作文修改
friends are essential in our life.of course,i have good friends.having problems with our friends is common.they are sometimes caused by a small thing.so i think the best way to deal with problems is to talk with your friends patiently. usually,a faithful apology will help you and your friends be better. friendship is forever.i shall get on well with my friends.
老师给我评分17分,结构分扣1分,谁帮我看看怎么样才能拿到这一分,谢谢

帮我翻译一下
Computers are now essential in many areas of life – modern banking, retail and information exchange among others. However, this is not true for education. At a simple level some subjects may be better taught using computers, but to explain important concepts a human teacher is still indispensable. - Introduction shows main idea
There are some subjects in which a computer can be used successfully to teach. Elementary mathematics, elementary language leaning, any area which requires a student to memorize basic facts through repetition is well suited to computer learning. The computer can be programmed to provide an endless number of simple questions, and as the student answers these questions the facts are learned and reinforced. - Why computers do well, with examples
However, in the learning and practice of more complex ideas, the computer is not adequate. A computer can evaluate an answer as right or wrong, but it cannot determine why. It cannot find out why a student is making mistakes, and then re-present important concepts in a different way so the student will understand. It cannot determine at what stage in a mathematics problem the student has made an error, it can only indicate that the final answer is wrong. Tasks involving reasoning cannot be taught by computers, as there are too many variables for a computer to deal with successfully. - What computers cannot be, with an example
Thus, while computers may be useful as a tool for practicing simple skills, they are not an essential feature of modern education, because they cannot monitor a student’s grasp of concepts, nor evaluate a student’s reasoning. Until further developments in computers are made the human teacher will remain indispensable. -
Conclusion re-states main ideas
Remember: this sample answer is one of several satisfactory ways to answer the question. Other essays which respond to the writing task would also be acceptable.,X!R` k~sw5FSource: Prepare for IELTS, by Vanessa Todd & Penny Cameron, 1996, UTS, Australia.

It is absolutely essential that William______his study in spite of some learning difficulties.
A.Will continue B.continued C.continue D.continues
答案说选C.请问对吗.这是强调句吗?

英语翻译
The most essential characteristic of mind is memory,and there is no reason whatever to suppose that the memory associated with a given person survives that person's death.

英语翻译
1.与德语相比,法语言在国际事务中起着更为重要的作用(essential)
2.成功的演讲要求诸如姿态,手势,和时间控制等非言语交流(call for)
3.我们不知道如何才能减轻他儿子的去世给带给她的悲痛(distract)
4.去参加聚会之前,请确保礼物要适合主人家庭(make sure)
5.要对观众产生最大影响,你必须将观众视作参与者(impact)

tonic with essential 英文的意思是什么?
朋友送了瓶the face shop的tonic with essential 和daily moisturizer 前者是水 后者是乳液 不知道是涂哪里的

By the time you have completed the essential training, you _____ exposed to virtually every new feature of the course． A．are B．will have been C．have been D．will be

_____ provides us with essential nutrients (营养), while ______ provides us with oxygen
解释为什么填eating 和breaking
A. To eat; breathing B. Eating; to D. Eaten; breathed 打错breathing

英语翻译
文章如下：
Effective Search Marketing
Traffic is essential to every website on the web.80% of internet users find what they are looking for from Search Engines.Are you effectively marketing to your share of those users?
Search Engine Optimization efforts are futile.SEO is both an art and a science.Just like building a home or commercial building the blueprints are the most important and vital piece of the puzzle.If you don’t build your SEO efforts from the beginning the process of optimizing your site will take longer.If your site is already built your SEO efforts need to be implemented carefully to gain success.
Effective Pay Per Click Marketing could supplement your success until your SEO efforts kick in.
If you’re a hands on person like myself,you may think you can just jump in,throw up some PPC ads and your good to go however with the rising costs of PPC advertising and the technology controlling it,this attitude could be detrimental to your success.
To run a successful PPC Campaign you need to do research and look at statistical data and analyze your market.Who are your competitors,what are they doing,where are they advertising,what are they advertising,how much are they spending!By having this knowledge you will save more money on your Search Marketing Efforts and you will Make More Money Online!
Here are some very simple yet telling stats!
May-07 Jun-07 % Chg.vs.Prev.Month
Total Internet Population 100.0% 100.0% N/A
Google Sites 50.7% 49.5% -1.2
Yahoo!Sites 26.4% 25.1% -1.3
Microsoft Sites 10.3% 13.2% 2.9

From the first glance at this information you can see that MSN search has gained some ground in the Search World.By digging a little deeper you will find out that MSN Search Query Volume is up 36% and it is because they have launched their Live Search Club Program (a program that rewards users of Live Search).With this data you can make a Business Decision to move advertising dollars to take advantage of this gain in traffic with MSN’s low priced PPC costs!
By digging even deeper you could also find out that Americans Searched 8.0 Billion Times on Google and even though their Market Share is down,their Search Query Volume is up,what does that mean to me (More Long Tail Searches!) and what does that mean (Lower PPC Costs!) If you analyze your data correctly you can also see that Google’s Market Share is up 10% over last year and that alone should tell you something!
All this data is public information but it takes time to gather it all,process it and then react.
To learn more about setting up an Effective Search Marketing Campaign I have created a series that takes you step by step through setting up a Pay Per Click Campaign.

34._____ photosynthesis (光合作用)is the essential source of food for almost all plants on earth..
A.It is an important process x05x05x05B.An important process,it is
C.That an important process as x05x05x05D.An important process

英语并列定语从句的省略!
“It is very essential to seek a step length that can determine the state of f(t),and that can vary with f(t).”中的第2个“can”可以省略吗?

英语翻译
课文里有一句是He was there,in the essential,classic circumstance.Man in the nature.The man in the water.参考书的翻译是这样的：他在那里,置身于典型的,人与自然抗争的紧要关头.一方是人类,即水中人,另一方是自然,即河水.主要是后面那句不知道为什么要这么翻译,不然该怎么翻,请学过或了解这篇文章的童鞋指点一下,感激不尽啊

英语翻译
It's not essential that you do this at the start,but I am telling you this now
so that if you want to fill up your card before the course starts,that is what
I need to give you some money back.
求翻译这一段,尤其是that is what 这一句!它与前面那一句的关系是什么?

advance purchase essential（提前购买很重要）,请问这三个词在句子中分别是什么词性?希望能够得到具体的语法解答!

Which home appliance do you think is essential to your life?
g给个例文,1分钟能说完就可以

英语翻译
Even so,the essential difference between solids and fluids remains.Any fluid,no
matter how "thick" or viscous it is,begins to flow,even if imperceptibly,under the
action of the slightest net shear force.Moreover,a fluid continues to flow as long
as such a force is applied.A solid,however,no matter how plastic it is,dose not flow unless the net shear force on it exceeds a certain value.For forces less than
this value the layers of the solid move over one another only by a certain amount.
The more the layers are displaced from their original relative positions,however,
the greater are the forces resisting the displacement.Thus,if a steady force is applied ,a state will be reached in which the forces resisting the movement of one
layer over another balance the force applied and so no further movement of this kind can occur.If the applied force is then removed,the resisting forces will tend
to restore the solid body to its original shape.
可以用任何软件,语句通顺,重要单词翻译正确.

It is absolutely essential that all the applicants one by one
A interviewed B to interview C be interviewed D to be interviewed