Grammar Rule in 30 Seconds
English sentences prefer 'heavy' or long information at the end to make them easier to read and understand.
- Move long subjects to the end using 'It' as a placeholder: 'It is clear that he lied.'
- Place longer objects after shorter ones: 'I gave the book to the girl with the red hat.'
- Avoid 'top-heavy' sentences where the subject is much longer than the verb phrase.
Overview
it 开头写句子，即使我们根本不在谈论某个物体？你有没有注意到，母语人士经常说 It is important to study，而不是 To study is important？这不仅是一个随机的选择。这是一个被称为 End-Weight Principle（句末重心原则） 的秘密规则。基本上，说英语的人讨厌“头重脚轻”的句子。我们喜欢把短而简单的内容放在句首，而把长而“重”的信息留在句末的高潮部分。把它想象成电影预告片：你先看到简短的钩子，大细节稍后才会出现。如果你在句首放太多的信息，听者的脑子可能在你还没说完之前就有点累了。我们想让他们保持参与，对吧？这条规则是你听起来自然的最佳搭档，尤其是在给朋友发短信或在社交媒体上发帖时。就像笨重的老电脑和纤薄的新平板电脑之间的区别——它流动得更好。别担心，你不需要语言学博士学位就能掌握这一点。一旦你看到了这个模式，它实际上是非常直观的。嘿，即使你弄错了，人们仍然会理解你，但使用这个技巧会让你听起来像个真正的专业人士。想象一下你是一个 DJ，在大降之前建立节拍。这正是你对句子所做的！此外，它让你的英语听起来不那么像教科书，而更像 Netflix 的节目。Word Order Rules
Subject + Verb + Object（主语+动词+宾语）的模式。这是语言的基础。但 End-Weight Principle 增加了一个有趣的转折。当句子的主语很长或很复杂时（我们称之为“重”），我们会把它移到句末。为了填补句首的空缺，我们使用一个“形式”主语，如 It 或 There。这些词在这种语境下实际上没有任何意义；它们只是为了保持句子平衡的占位符。例如，与其说 That you are here makes me happy（这在句首感觉有点正式且沉重），不如说 It makes me happy that you are here。看看这感觉有多流畅？这就像把沉重的杂货放在汽车后备箱里，而不是仪表盘上。你仍然可以开车，但后备箱更安全、更舒适。对于 A1 学习者来说，你最常见到的形式是 It is + [形容词] + [to-动词]。这是你表达意见的首选公式。它被用于从 WhatsApp 消息到工作面试的方方面面。另一种常见的方法是使用 There is 或 There are 来引入新信息。通过以简短的 There is 开头，你可以给听者一秒钟的时间来准备接受接下来的描述。这一切都是为了管理“信息流”，这样你的朋友就不必费劲去理解你了。记住，开头短小精悍，结尾长而详细。这是成功的简单秘诀！How This Grammar Works
It 这样的单个单词非常轻。像 to travel around the world with my best friends 这样的短语非常重。通过把重的部分放在最后，你遵循了英语的自然节奏。它就像一个下坡路——开始很容易，然后动力增加。当你指路或描述情况时，这特别有用。如果你以一个又长又复杂的主语开头，人们可能会失去焦点。通过以短词开头，你“锚定”了句子。它给了听者一个清晰的起点。这个原则非常普遍，以至于我们经常甚至没有意识到我们在使用它。例如，当你查看天气应用时，它可能会说 It is sunny today。单词 It 就在那里，帮助句子平稳开始。如果我们只说 Sunny today，那将是一个碎片。如果我们说 The weather today is sunny，那是正确的，但稍微长一点。It is sunny 是重量和速度的完美平衡。这几乎适用于任何情况：在线订餐、与朋友玩游戏，甚至只是打个招呼。它让你的话听起来平衡且深思熟虑。它就像英语句子的黄金比例。一旦你开始注意到它，你会发现它无处不在——在歌词中、电影标题中，甚至就在这段解释中！它是那些能让你听起来流利程度大不相同的“无形”规则之一。
Formation Pattern
It 或 There。It 通常用于表达意见或事实，而 There 用于说明某物的存在。
is、was 或 makes），可能还有个简短的形容词或名词。
Conjugation Table
| Form | Example | Translation |
|---|---|---|
| --- | --- | --- |
| It is + 形容词 + to-动词 | It is fun to play games. |
玩游戏很有趣。 |
| It is + 形容词 + that从句 | It is clear that he likes you. |
很明显他喜欢你。 |
| There is/are + 名词 + 细节 | There is a cat on the sofa. |
沙发上有一只猫。 |
| It + 动词 + 宾语 + that从句 | It makes me sad that you are leaving. |
你要离开让我很难过。 |
Pattern Variations
It is 模式最常见，但在日常生活中还有其他几种体现 End-Weight Principle 的方式。例如，你可以把它与 seems 或 appears（似乎）之类的动词连用。与其说 That they are lost appears likely，不如说 It appears likely that they are lost（他们似乎迷路了）。这听起来更像是一个真人在旅行视频博主中会说的话。你也可以把它与描述情绪的动词连用，比如 bothers（困扰）或 surprises（惊讶）。It surprises me that you don't like pizza! 比 That you don't like pizza surprises me! 好得多。另一种变化是在长宾语后跟一个简短描述时，将长宾语移到句末。目标始终是将“重”的部分保持在最后，这样句子就不会翻倒。就像玩层层叠一样——在开始在顶部添加复杂的块之前，你需要一个坚实的基础。这个原则也有助于处理“新”信息与“旧”信息。我们通常把听者已经知道的东西放在开头，而把全新的、令人兴奋的东西放在结尾。这能保持对话的进行，让你听起来更有吸引力。Politeness Levels
- Casual
It's cool you're coming.（非常适合 TikTok 或 WhatsApp）
- Informal
It is nice to meet you.（认识新朋友的标准用语）
- Formal
It is requested that all guests arrive early.（用于正式邮件或 Zoom 会议）
Real Conversations
场景 1：给朋友发关于电影的短信
Alex
It was so boring to watch that film.Sam
Really? I thought it was okay.Alex
Nah, it is better to just watch YouTube trailers.场景 2：在咖啡馆
Server
There is a free table over there by the window.Customer
Great! It is nice to have some sunlight.场景 3：Zoom 上的工作面试
Interviewer
It is important for us to find someone who loves teamwork.Candidate
I agree. It is clear that collaboration is key here.
Memory Trick
想象你的句子是一个 跷跷板。如果你把沉重的大象放在开头，而把小老鼠放在结尾，跷跷板就卡住了！为了让跷跷板动起来并获得乐趣，把小老鼠 (It / There) 放在开头，把沉重的大象（长短语）放在结尾。现在你的句子可以摆动了！
Common Mistakes
To learn a new language like English is very hard. (✗)
It is very hard to learn a new language like English. (✓)
Is good to see you. (✗)
It is good to see you. (✓)
It is my friend who is coming. (✗)
My friend is coming. (✓)
The fact that the weather is bad makes me sad. (✗)
It makes me sad that the weather is bad. (✓)
Progressive Practice
从改写简单的句子开始：To swim is fun → It is fun to swim.
添加细节：It is fun to swim in the ocean with friends.
尝试使用 There is：A big dog is in my garden → There is a big dog in my garden.
挑战自己：使用 It makes me... that... 对电影发表看法。
Quick FAQ
把长的部分放在开头总是错的吗？
不，这在语法上并没有“错”，但听起来非常正式或诗意。如果你只是和朋友聊天，听起来会有点奇怪。
为什么我们称之为“重量”？
因为长短语会让大脑在处理时感到“沉重”。把它们放在最后可以让大脑在接受重大信息之前休息一秒钟！
Extraposition Structure
| Dummy Subject | Verb/Adjective | Real (Heavy) Subject |
|---|---|---|
|
It
|
is important
|
that you listen.
|
|
It
|
is strange
|
whether he comes or not.
|
|
It
|
bothered me
|
that she forgot.
|
|
It
|
seems
|
that we are lost.
|
|
It
|
is fun
|
to play games.
|
Meanings
The End-Weight Principle is a stylistic tendency in English where longer, more complex structures (phrases or clauses) are placed at the end of a sentence to improve processing and flow.
Extraposition of Subject
Moving a long clausal subject to the end and replacing it with 'it'.
“It is important that you arrive on time.”
“It bothered me that she didn't call.”
Dative Shift / Object Ordering
Ordering direct and indirect objects so the longer one comes last.
“I sent a letter to my cousin who lives in Australia.”
“She gave the man who was waiting outside a small gift.”
Heavy NP Shift
Moving a very long direct object to the end of the sentence, after an adverbial.
“He confessed to the priest all the sins he had committed over the years.”
“She explained to the students the importance of the upcoming exam.”
Reference Table
| 原则 | 别扭/不自然 (Awkward) | 丝滑/自然 (Natural) |
|---|---|---|
|
信息流向
|
That she decided to quit her job and travel the world was surprising.
|
It was surprising that she decided to quit her job and travel the world.
|
|
复杂主语
|
A detailed report outlining the financial implications of the new policy was submitted.
|
A detailed report was submitted, outlining the financial implications of the new policy.
|
|
新信息
|
His new car, which he bought last week with his bonus, is red.
|
His new car is red, which he bought last week with his bonus.
|
|
长从句
|
To finish the challenging project before the deadline was their main goal.
|
Their main goal was to finish the challenging project before the deadline.
|
|
清晰度与节奏
|
The reason for the delay, because of unexpected technical issues, was announced.
|
The reason for the delay was announced, because of unexpected technical issues.
|
|
正式写作
|
That the government must address climate change is imperative.
|
It is imperative that the government must address climate change.
|
正式程度
It is a pleasure that you have joined us today. (Welcoming someone)
It's great that you came. (Welcoming someone)
Good you're here! (Welcoming someone)
Glad you made it, fam. (Welcoming someone)
尾重原则：逻辑思维导图
什么是“重”？
- 长短语 Complex multi-word groups
- 新信息 Details not yet known
- 复杂从句 Clauses with subject/verb
好处
- 清晰度 Easier to understand
- 自然语流 Sounds native and smooth
- 强调 Highlights key details
如何应用
- 使用 'It' 'It is important that...'
- 重新排列 Move long elements to the end
- 被动语态 Sometimes helps with agent phrase
尾重原则应用前后对比
应用尾重原则：决策流程图
句子读起来觉得别扭或笨重吗？
句子开头是否包含长、复杂或全新的信息？
能用 'It is...' 开头并把真实主语放后面吗？
描述性从句是否打断了主语和动词？
何时优先考虑尾重原则
清晰第一
- • 引入复杂概念
- • 确保易于理解
- • 避免歧义
风格润色
- • 正式写作 (论文、报告)
- • 专业演讲
- • 听起来像母语者
特定结构
- • 长 'that' 从句
- • 不定式短语做主语
- • 详尽的定语从句
按水平分级的例句
It is good to see you.
It is good to see you.
It is hot in the sun.
It is hot in the sun.
It is time to go home.
It is time to go home.
It is easy to cook pasta.
It is easy to cook pasta.
It is important to drink water.
It is important to drink water.
It is difficult to learn Chinese.
It is difficult to learn Chinese.
I gave the book to my teacher.
I gave the book to my teacher.
It is nice that you called me.
It is nice that you called me.
It is clear that he doesn't know the answer.
It is clear that he doesn't know the answer.
It doesn't matter if we are late.
It doesn't matter if we are late.
I sent an email to the manager of the store.
I sent an email to the manager of the store.
It is possible that the flight will be delayed.
It is possible that the flight will be delayed.
It is highly probable that the interest rates will rise next month.
It is highly probable that the interest rates will rise next month.
It bothered Sarah that her brother never helped with the chores.
It bothered Sarah that her brother never helped with the chores.
The professor explained to the class the complex theories of quantum physics.
The professor explained to the class the complex theories of quantum physics.
It remains to be seen whether the new policy will be effective.
It remains to be seen whether the new policy will be effective.
It is a matter of some urgency that we address the structural deficits in our current budget.
It is a matter of some urgency that we address the structural deficits in our current budget.
He attributed to his upbringing his remarkable ability to remain calm under pressure.
He attributed to his upbringing his remarkable ability to remain calm under pressure.
It is often argued by sociologists that urban sprawl contributes significantly to social isolation.
It is often argued by sociologists that urban sprawl contributes significantly to social isolation.
It makes no difference to the outcome whether you choose to participate or not.
It makes no difference to the outcome whether you choose to participate or not.
It is incumbent upon the board of directors to ensure that all safety protocols are strictly adhered to.
It is incumbent upon the board of directors to ensure that all safety protocols are strictly adhered to.
There followed a period of intense negotiation during which both parties made significant concessions.
There followed a period of intense negotiation during which both parties made significant concessions.
It was with great reluctance that the prime minister finally agreed to the terms of the treaty.
It was with great reluctance that the prime minister finally agreed to the terms of the treaty.
I leave to your discretion the decision of how best to allocate these limited resources.
I leave to your discretion the decision of how best to allocate these limited resources.
容易混淆
Both use 'It is...' at the start. Learners often confuse moving a whole clause (End-Weight) with focusing on one specific word (Cleft).
Learners might use 'There is' when they should use 'It is'.
Both are used to move information around in a sentence.
常见错误
To swim is fun.
It is fun to swim.
Is important to go.
It is important to go.
That you are here is good.
It is good that you are here.
I like very much pizza.
I like pizza very much.
I gave to him the book.
I gave him the book.
That she is late is a problem.
It is a problem that she is late.
Is true he left?
Is it true that he left?
Whether he will come is not known.
It is not known whether he will come.
I explained the problem to the man who was standing by the door.
I explained to the man who was standing by the door the problem.
It was surprising his reaction.
His reaction was surprising. / It was surprising that he reacted that way.
That the results were manipulated by the researchers was revealed.
It was revealed that the results were manipulated by the researchers.
I mentioned to him the fact that I was leaving.
I mentioned the fact that I was leaving to him.
It is important for to go.
It is important to go.
句型
It is ___ to ___.
It is ___ that ___.
It ___ me that ___.
It remains to be seen whether ___.
Real World Usage
It is widely accepted that climate change is driven by human activity.
It has always been my ambition to lead a creative team.
It's cool that you're coming tonight!
It was reported today that the two companies will merge.
It is our policy to offer a full refund within thirty days.
It's so annoying when the Wi-Fi stops working.
听听语感
Read your sentences aloud.
拒绝“前载”信息
让 'It' 来帮忙
It is difficult to say...
听起来更像母语者
Native speakers instinctively use end-weight.
识别“重量级”选手
Smart Tips
Stop and try starting with 'It is...' instead. It will almost always sound more natural.
Use 'It is argued that' or 'It has been suggested that' to introduce sources. It follows end-weight and sounds objective.
Check which one is longer. Put the longer one at the very end.
Always use 'It' as a placeholder if you have a clausal subject.
发音
Dummy 'It' Stress
The word 'It' at the beginning of these sentences is almost never stressed. It is pronounced quickly as /ɪt/.
End-Focus Intonation
The pitch of your voice usually drops at the end of the 'heavy' part, which is where the most important information sits.
The Slide
It is certain that they will ↘️ win.
Conveys certainty and completion of the thought.
记住它
记忆技巧
Heavy goes Home: Long parts of the sentence want to go 'home' to the end.
视觉联想
Imagine a seesaw. If a giant (long phrase) sits at the front, the seesaw crashes. If the giant sits at the back, it stays balanced.
Rhyme
If the subject is long and brings a fright, move it to the end and make it right.
Story
A little word named 'It' was a hero. He saw a giant, heavy sentence part trying to climb onto the subject's chair. 'It' said, 'I'll sit here for you! You go relax at the end of the sentence.'
Word Web
挑战
Look at a news article. Find three sentences that start with 'It is...' and try to rewrite them with the long part at the beginning. Notice how much harder they are to read!
文化笔记
British English often uses end-weight in formal correspondence to maintain a polite, indirect distance. 'It would be appreciated if...'
In US universities, students are taught to avoid 'wordiness,' but the End-Weight principle is still encouraged to keep the 'action' (the verb) near the start of the sentence.
Legal documents use 'Heavy NP Shift' constantly to ensure that long lists of conditions don't interrupt the main verb of a contract.
The End-Weight principle has been a feature of Germanic languages for over a millennium, evolving as English shifted from a more flexible word order to a strict SVO structure.
对话开场白
Do you think it's important to learn a second language?
Does it bother you when people are late for meetings?
It is often said that money can't buy happiness. Do you agree?
It remains to be seen how AI will change the job market. What's your take?
日记主题
常见错误
Test Yourself
选择听起来最自然的句子：
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
The company decided to delay the launch of the new product, ___ unexpected technical issues.
Score: /3
练习题
8 exercisesThat he forgot your birthday is sad.
Ordering objects:
___ is important that we finish this project by Friday.
Find and fix the mistake:
Is clear that you are the best candidate.
bothers / that / it / me / is / raining / it
1. To eat healthy is good. 2. That he lied is true. 3. Whether they win is unknown.
Select the formal structure:
It ___ to be seen whether the economy will recover.
Score: /8
Practice Bank
12 exercisesIt was impossible to ignore ___ everyone was saying about the new boss.
That the event was cancelled at the last minute disappointed many attendees.
选择听起来最自然的句子：
将此句翻译成英语：'理解这个复杂的理论很难。'
将这些单词排列成一个连贯的句子：
匹配句子部分：
He made a surprising announcement ___ to leave the company next month.
A student who had been working on the research project for over a year finally presented their findings.
哪个句子的结构最清晰？
将此句翻译成英语：'新规则太严厉让我很担心。'
创建一个语法正确且自然的句子：
匹配句子片段：
Score: /12
常见问题 (8)
No, it is not grammatically wrong, but it is stylistically 'heavy.' Native speakers avoid it because it makes the sentence harder to process.
No. In the End-Weight principle, only `It` works as a dummy subject. You cannot say '*This is true that he left.'
Usually no. If the subject is just one or two words (e.g., 'He is nice'), we don't move it. End-weight is for 'heavy' parts.
Typically, any phrase with more than 5-7 words, or any clause starting with `that`, `to`, `whether`, or `if`.
No, it's very common in speaking too! We naturally say 'It's funny that...' rather than 'That... is funny.'
End-weight is about the *length* of the words. End-focus is about putting the *newest* or *most important* info at the end.
It's most common with the verb `to be` and adjectives, or verbs of emotion/perception like `bother`, `seem`, `appear`, and `surprise`.
Because the word `It` doesn't actually refer to anything. It's just a 'placeholder' to keep the subject position filled.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Flexible word order / Subject post-position
Spanish is pro-drop and doesn't use a placeholder like 'it'.
C'est... que / Extraposition
French uses 'Il' or 'Ce' depending on the formality and the following adjective.
Expositions-es
German verb-second (V2) rules make the placement of 'Es' more restricted.
Topic-Comment structure
The most important/heavy part (the verb) is always last in Japanese.
VSO order
The subject naturally follows the verb, so no 'extraposition' is needed.
Topic-prominent structure
Chinese is comfortable with very long 'topics' at the start of a sentence.
Learning Path
Prerequisites
相关视频
01:06 Grand Budapest Hotel - Carousel scene
04:49 When should you break a promise? - Sarah Stroud and Michael Vazquez
04:55 How we got hooked on credit cards - Nidhi Upadhyaya
Grammar Lesson #1 - Tips to Improve Your Sentence Structure
Oxford Online English
Word Order: How to structure a sentence | English Grammar Lesson | B1-Intermediate
Anglo-Link
English grammar tutorial - Word order - Gramática inglesa
Your English Web: Weekly English video lessons
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