有劳帮忙分析一下此句结构，谢谢。

请大家帮忙分析一下这句话的句子的结构。谢谢！~

with引导的分词独立宾语从句做状语，主句是个问句。
With(介词)all sides(主)presenting(分词谓语)their own experts(从句主语)armed(从句谓语) with(介词引出从句宾语) conflicting scientific（宾语的定语） studies（从句宾语），whom（疑问词引导宾语疑问句）should（情态动词） parents（主语）believe（谓语）?
翻译：各方都出示了他们的专家所支持的相互冲突的科学研究结果，父母们应该相信谁呢？

说的是有积极意义，并不是说"只"有积极意义。
况且总体来说对个体的成长和整个种群的进化还是积极意义大于消极意义。
正如交通事故是当前人类的第一大杀手，死于交通事故的人已经远远大于死于战争的人。但是汽车的发明对人类是有积极意义的。

AN important skill to develop in any foreign language（主语） is （is做系动词）to understand the gist of what is being communicated without understanding every word.（to do结构作表语）
be+to do 的用法 参考：
一般说来，“be to do” 这个结构有两种语法意义，其一是连系动词be+动词不定式做表语，其二是be to是一个独立词汇单位,具有情态含义,可以把它叫做情态习语(modal idiom)。
一、be +动词不定式, 不定式做表语,表示主语和表语在概念上是等同的。如：
The problem is to find a solution.
His plan is to clean the room.
My wish is to be a doctor.
二、be to +动词不定式中的be to用作情态习语, 这时的be to do表示: “计划”、“安排”、“义务”、“应该”、“可能”、“命运”等。(have to, ought to)。如:
He is to have a holiday. (表示将来)
The committee is to meet today. (表示计划、安排)
You are to go to the hotel where rooms have already been booked for you.

1. 表示 “将”、“计划”、“安排”。(意思接近于be going to) 如：
Their daughter is to get married soon.
Who is to question him？
It was the last film at the cinema，which was to close next day.
After dinner they were to go to a movie.
was/ were to do 表示过去曾经计划要做的事，或者过去应当做的事，而且从现在的角度来看已经实现了。如：
I felt nervous because I was soon to leave home for the first time.
I was to play Juliet.
The expedition was to start in a week’s time.
was/ were to have done, 表示 “本打算”、“本计划”或“本应当” 做的事而没有做成或没有发生。如:
I was to have seen him last Wednesday, but he didn’t come.
We were to have been married last year.

2. 表示 “义务”、“应该” 。(意思接近于should， must， ought to， have to) 如：
No one is to leave the building. 谁也不得离开这楼房。
You are not to smoke in this room.=You are not supposed to smoke in this room.
You are to be back by 10 o’clock. 你必须十点以前回来。

3. 表示可能性, 相当于can, may 如:
Such books are to be found in the library. 这样的书在图书馆里就能找到。
Not a single sound was to be heard. 一点儿声音也听不到。
Not a soul was to be seen. 看不到一个人影。
She was nowhere to be found. 哪儿也找不到她。
She was never to see his wife and family again.

4. 表示 “命运”, 将来必然要发生的事, 译作 “注定……”。如：
He came to power, but he was to play dearly for it: soon he was assassinated.
The worst is still to come.
They said goodbye, little knowing they were never to meet again.

5. 用于“if…were to do”，表示虚拟语气。如：
If it were to rain tomorrow, the sports meeting would be put off. 如果明天下雨, 运动会就会延期。

An important skill (主语） to develop（介宾结构做定语，表目的） in any foreign language （介宾结构做状语修饰develop，表范围） is （谓语，系动词） to understand the gist of what is being communicated without understanding every word.(to 引导的不定式短语做表语，该结构的宾语是gist，of what……是定语从句，修饰gist；without……介宾短语做状语）

be加不定式做表语，to后面的成分和主语一个概念。比如my dream is to travel around the world.类似的名词还有plan

其他四名学生是我在伦敦班里的。 are是系动词，系动词之前是主语，之后是表语。in london是做后置定语 我爱我的家庭,因为我有一个快乐的Inside the

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温宿县18879513016： 请大家帮忙分析此句的句型结构:You may be only one critical skill away from top performance.谢谢？
闾程头孢： 首先翻译:你也许离最佳表现只差一个关键性的技能了. 分析: 主语:you 情态动词:may 系动词:be 主要结构:be away from,只是be后面加了only one critical skill,不影响句子成分. 去掉所有修饰成分后得到:You are one skill away from top performance.

温宿县18879513016： 帮忙分析一下这句英语的结构,越详细越好,介绍一下这句话所用的所有我语法和词组,谢谢I believe I have made detailed and exhaustive a study of his ... - ？
闾程头孢：[答案] 答:凭语感和语法,当我阅读到a study时,就感觉此句有误.一般说:so +adj.+a 单数可数名词 that ...或as +adj.a 单数可数名词 +as.这是两个句型.通常都是:a +adj.+可数名词单数.所以判断,你的detailed前应该还有一个...

温宿县18879513016： 请帮我分析下这句的语法结构谢谢!Is there something repellent about me?前半句是主系表结构,从repellent about me 这里是什么成份? - ？
闾程头孢：[答案] Is there something repellent about me? 前半句是主系表结构,repellent 是形容词作定语修饰 something about me是介词短语作定语修饰 something repellent 注意 修饰不定代词something的形容词必须放在后面

温宿县18879513016： 帮我分析一下句子结构,谢谢I hope you have understood this by now:going to college means a lot more than getting a grade. - ？
闾程头孢：[答案] 这其实是两句句子,以冒号为分界.两句句子的关系是,前一句中this是代词,代指冒号后面的内 容. 前一句是一句宾语从句.连接词that省略,也就是I hope (that) you have understood this by now..by now是时间状语,也就是have understoodxianz现在完...

温宿县18879513016： 分析这句话的语法结构.？
闾程头孢： 它(主语)是(系动词)程序(表语)或(连词)代码(表语). 总的结构是我们常说的系表结构.

温宿县18879513016： 请帮忙分析一下这个句子的句子成分:Is there anything I can do for you?谢谢哦! - ？
闾程头孢： 这是一个复合句,Is there anything 是主句,问“有没有什么事?”,后面的 I can do for you 是定语从句,省略了关系代词 that,即“我可以为您做的”.合在一起就是“有没有什么我可以为您做的事?”这是很有礼貌的,主动询问他人是否需要帮助的常用口语.

温宿县18879513016： 英语语法问题:I watched you walk away. 请各位大大帮忙分析下这个简单的句子结构谢谢 - ？
闾程头孢： I watched(主谓语) you(宾语) walk away(不带to 的不定式作宾补) 全句意为: 我看你走开了 see hear watch notice feel observe 等感官动词后可以接 sb do sth ,用不带to 的不定式作宾补

温宿县18879513016： “I,m going to put it on this table.”请帮忙分析一下此句子的语法结构和句子成份.可以详细一些或... - ？
闾程头孢： 句中为一般将来时的时态,采用be going to结构,它表示将来打算、计划去做或者有意去做的事. 例如:She is going to write to him.她就要给他写信了. It is going to snow.天就要下雪了. 句子成分分析:I 为句子主语,put为动词,it指示代词为宾语,on this table为地点状语.

温宿县18879513016： 请高手帮忙分析分析这个句子的结构“I think I know what you know I know”,谢谢! - ？
闾程头孢： 第一框架 I--主语 think--谓语 I know what you know i know--宾语 第二框架--在宾语从句中: I--主语 know--谓语 what you know I know--宾语从句 第三框架--在第二个宾语从句中: you--主语 know--谓语 what I know--宾语然后就是最后一个宾语从句 I --主语 know--谓语 what--宾语 你懂的,呵呵.

温宿县18879513016： 请帮忙分析一下这几个句子语法结构、句子成分. 谢谢! - ？
闾程头孢： 1、句子主干: A solar day is the length of time. 这是一个＂主系表＂结构. it takes the Earth to revolve once around the Sun.是定从,修饰the length of time. 由于先行词在定从中作takes的宾语,故此定从省略了关系代词that . 在定从中it作形式主语...