雅思语法_主语从句
写作：形式主语从句是雅思写作中非常常用的一种句型
写作：形式主语从句是雅思写作中非常常用的一种句型形式主语从句是雅思写作中非常常用的一种句型。
我们先来看一下它是如何构成的。
(That + 一个完整的句子可做主语)。
比如说：(That education is important) is clear.这就是主语从句的基本形式。
但如果句子要是这样，主语过长。
所以，我们习惯于用it来代替原来的主语。
而把原来的主语放在句子的最后。
这句话可改为：It is clear that education is important.这就叫做形式主语从句。
以下的形式主语从句句型在雅思写作中都常常用到。
希望大家能认真掌握，灵活使用。
1 It is often the case that2 It’s a fact that3 It seems that4 It’s said that5 It’s reported that6 It’s believed that7 It’s unive rsally accepted that8 It’s announced that9 It’s estimated that10 It must be admitted that11 It’s obvious that12 It must be stressed out that13 It is widely-accepted that14 It cannot be denied that15 It can be foreseen that16 It’s as clear as crystal that17 It goes without saying that18 It is acknowledged that19 It is well-known that20 It is estimated that1．句子成分残缺不全We always working till late at night before taking exams.（误）We are always working /We always work till late at night before taking exams（正）We should read books may be useful to us. （误）We should read books which may be useful to us. （正）2．句子成分多余This test is end, but there is another test is waiting for you. （误）One test ends, but another is waiting for you. （正）The driver of the red car was died on the spot. （误）The driver of the red car died on the spot. （正）3．主谓不一致Someone/Somebody think that reading should be selective. （误）Some think that reading should be selective. （正）My sister go to the cinema at least once a week. （误）My sister goes to the cinema at least once a week. （正）4．动词时态、语态的误用I was walking along the road, and there are not so many cars on the street. （误）I was walking along the road and there were not so many vehicles on the street. （正）We have little time to read some books which we interest. （误）We have little time to read some books in which we are interested. （正）I am a student who has studying in the college for two years. （误）I have been studying in the college for two years（正）5．词类混淆It is my point that reading must be selectively. （误）In my opinion, reading must be selective. （正）Honest is so important for everyperson. （误）Honesty is so important for everyone. （正）The old man was hit by a car when he across the street. （误）The old man was hit by a car when he was crossing the street. （正）一，现象解释型模板 ( 括号内为备选模板句型)1．__________has become a common part of people’s life.(空格内概括最近总体现象)（We have witnessed ______________）（________has been brought into focus）2. And _____has always aroused the greatest concern.（填题目要求讨论的具体现象）（According to _______, ___________.空格一据题目提示填the chart, the report 等，空格二填现象的具体表现一)3. What impresses us most is_____________. （现象的具体表现）（And / in addition______. 现象的具体表现二）4. The reasons _____________are varied. (过渡句，填现象或其结果，为下文分析原因作铺垫) ( Many reasons contribute to ________. )5. Among the various reasons, ____plays an important part.（原因一）6. That is to say,___________. （具体说明原因一）7. What is more, ___________, （原因二）8. For examples,____________. （举例说明原因二）或：(To begin with, ——）（原因一）（moreover,_______） (原因二)（In addition ，_____）（原因三）(As a result, _____) (原因导致的结果)9. When talking about __________, _____________.（空格一填作者要讨论的现象，空格二填作者的看法）（As to me, ________）10. On the one hand / First of all, _________.（支持看法的理由一）11. On the other hand, / Besides, / Furthermore, _______. （支持看法的理由二）12. In brief,/ To conclude, / In a word,_______.（总结）二，对比选择型模板1. Different people have different views on ______.( There is no complete agreement among people as to_______.)2. Some people prefer / consider____.3. However, others tend to / think_______.4. As to me, I agree with / to__________.5．Of course, _______. ( 承认自己所不赞同的看法有一定合理性)6. For example,_______. （举例说明，支持第五句）7. But __________. （转折指出这种观点的不足）8. The following reasons can account for my preference ___. （启下，过渡到下段具体阐述自己所支持的观点或理由）9. The main reason is ______. （支持观点的理由一）10. A good example to illustrate is____________. （举例说明理由一）11. For anther, _________. （理由二）12. From the foregoing, __________. （总结全文：从长远看---）或：1.2.3 同上4. Some people may say_____.5. They hold this opinion because_______.6. However, others believe_______.7. They argue that______.8. Personally, I am in favor of the _________.9. Firstly,___________. ( 个人看法的依据一)10. Secondly,__________. ( 个人看法的依据二)11. Most important of all, __________. ( 个人看法的依据三)12. Taking above-mentioned factors into consideration, we/I may reasonably conclude that________.或:1. When asked about______, different people will offer different opinions.2. Some people take it for granted that _________. (观点一)3. In their opinion, _________. (观点的理由一)4. Besides, ________. (观点的理由二)5. However, other hold _______. (观点二)6. They maintain that_______. (观点二的理由一)7. And _________. (观点二的理由二)8. Weighing up these two arguments, I am for _______.9. For one thing, ________.（作者观点的理由一）10. For another, ___________.（作者观点的理由一）11. For instance, ___________.（举例说明）12. Therefore, as stated above, __________. ( 综上所述，再次强调选择)三，问题解决型模板1. With the development / improvement of ____, ________. ( 空格一填铺垫，空格二写某一问题)2. It is necessary that________. （关注解决问题的必要性）3. On the one hand, ________. （解决问题很必要的理由一）4. On the other hand, ________. （解决问题很必要的理由二）5. Therefore, how to_____is worth paying attention. （承上启下，空格内填要解决的问题）6. Firstly,________. （解决办法一）7. Secondly, _________. （解决办法二）8. For example, ________. （举例解释解决办法一）9. Thirdly, ______. （解决办法三）10. In other words, ________. （阐明解决办法三）11. In fact, ways to _______are countless. （总结：解决办法多种多样）12. It’s time that ________. （强调解决问题时不可待，虚拟语气：从句中用一般过去时态）或：1. There has been a discussion recently about____________.2. It is obvious that_________. （解决问题的必要性一）3. Additionally, _________. （解决问题的必要性二）4. So it is high time_________. （承上启下，说明解决问题的必要性）5. First of all, ______. （解决办法一）6. The reason is _______. （解决办法一的理由）7. Secondly, __________. （解决办法二）8. That is to say,_________. （解决办法二的理由）9. Thirdly, __________. （解决办法三）10. In fact, more than three ways can be adopted. （说明解决办法很多）11. As for me, _______. （小结：解决问题的根本途径）12. All in all, ________. （总结全文）或：1. It is certain that_________. （提出问题及解决的必要性）2. For one reason, _____. （解决问题的必要性一）3. For another, ______. （解决问题的必要性二）4. However, some still puzzle on how to ________. （转折到谈如何解决问题）5. Here come some suggestions.6. To begin with, _______.7. Secondly, _________.8. For instance, _______.9. Thirdly, __________.10. That is because _________. （解决办法三的理由）11. The solution vary according to different situations.（解决某一问题的办法因情而宜）12. Therefore, _________. （总结全文，要灵活地依据具体情况处理问题）四，观点论证型模板1. It is true that ________. （指出普遍存在的观点）2. However, _________. （谈不同的观点）3. I think__________. （提出自己的观点，即文章的论点）4. ________can be listed as follows. （过渡句，转向论点的论证，空格内根据具体情况填具体的词）5. Firstly, _________. （论证理由一）6. Secondly, ________. （论证理由二）7．For example, _____. （举例说明论证理由二）8. Thirdly, ________. （论证理由三）9. A case in point is ________. （举例说明论证理由三）10. It goes without saying that ________.（转折句，提出执行该观点时应注意的事项）11. There is no doubt that________. （得出结论）12. In conclusion_________. （总结全文）或：1. Some people believe that ________. （直接提出本文的论点）2. The truth is deep and profound. （进一步强调观点的正确性）3. As we know, _________. （论证理由一）4. In addition, ________. （论证理由二）5．There are numerous examples________. （承上启下）6. A case in point is________. （举例一具体论证）7. This is close to suggest________. （总结例一）8. For another example, _________. （举例二具体论证）9. Moreover, _________. （举例三具体论证）10. All mentioned above tell us__________. （总结上文，重申论点）11. But one thing we have to notice is that___ __. （提出该论点应注意什么）12. In short, ________. （总结全文）议论文的框架（1）不同观点列举型（选择型）There is a widespread concern over the issue that __作文题目_____. But it is well known that the opinion concerning this hot topic varies from person to person. A majority of people think that _ 观点一________. In their views there are 2 factors contributing to this attitude as follows: in the first place, ___原因一_______.Furthermore, in the second place, ___原因二_____. So it goes without saying that ___观点一_____.People,however,differ in their opinions on this matter.Some people hold the idea that ___观点二_______. In their point of view, on the one hand，___原因一_______. On the other hand, ____原因二_____. Therefore, there is no doubt that ___观点二______.As far as I am concerned, I firmly support the view that __观点一或二______.It is not only because ________, but also because _________. The more _______, the more ________.（2）利弊型的议论文Nowadays, there is a widespread concern over （the issue that）___作文题目______. In fact, there are both advantages and disadvantages in __题目议题_____. Generally speaking, it is widely believed there are several positive aspects as follows. Firstly, ___优点一______. And secondly ___优点二_____.Just As a popular saying goes, "every coin has two sides", __讨论议题______ is no exception, and in another word, it still has negative aspects. T o begin with, ___缺点一______. In addition, ____ 缺点二______.To sum up, we should try to bring the advantages of __讨论议题____ into full play, and reduce the disadvantages to the minimum at the same time. In that case, we will definitely make a better use of the ____讨论议题___.（3）答题性议论文Currently, there is a widespread concern over （the issue that）__作文题目_______ .It is really an important concern to every one of us. As a result, we must spare no efforts to take some measures to solve this problem.As we know that there are many steps which can be taken to undo this problem. First of all, __途径一______. In addition, another way contributing to success of the solving problem is ___途径二_____.Above all, to solve the problem of ___作文题目______, we should find a number of various ways. But as far as I am concerned, I would prefer to solve the problem in this way, that is to say, ____方法_____.（4）谚语警句性议论文It is well know to us that the proverb: " ___谚语_______" has a profound significance and value not only in our job but also in our study. It means ____谚语的含义_______. The saying can be illustrated through a series of examples as follows. （also theoretically ）A case in point is ___例子一______. Therefore, it is goes without saying that it is of great of importance to practice the proverb____谚语_____.With the rapid development of science and technology in China, an increasing number of people come to realize that it is also of practical use to stick to the saying: ____谚语_____. The more we are aware of the significance of this famous saying, the more benefits we will get in our daily study and job.说明利弊题型这种题型往往要求先说明一下现状，再对比事物本身的利弊，有时也会单从一个角度（利或弊）出发，最后往往要求考生表明自己的态度（或对事物前景提出预测）1．说明事物现状2．事物本身的优缺点（或一方面）3．你对现状（或前景）的看法Nowadays many people prefer A because it has a significant role in our daily life. Generally, its advantages can be seen as follows. First ________（A的优点之一）. Besides ____________（A的优点之二）.But every coin has two sides. The negative aspects are also apparent. One of the important disadvantages is that ________（A 的第一个缺点）．T o make matters worse,____________（A的第二个缺点）．Through the above analysis, I believe that the positive aspects overweigh the negative ones. Therefore, I would like to ________（我的看法）．（From the comparison between these positive and negative effects of A, we should take it reasonably and do it according to the circumstances we are in. Only by this way, ________（对前景的预测）．解决方法题型要求考生列举出解决问题的多种途径1．问题现状2．怎样解决（解决方案的优缺点）In recent days, we have to face I problem——A, which is becoming more and more serious. First, ________（说明Ａ的现状）．Second, ________（举例进一步说明现状）Confronted with A, we should take a series of effective measures to cope with the situation. For one thing, ________（解决方法一）. For another ________（解决方法二）. Finally, ________（解决方法三）.Personally, I believe that ________（我的解决方法）. Consequently, I’m confident that a bright future is a waiting us because ________（带来的好处）.阐述主题题型要求从一句话或一个主题出发，按照提纲的要求进行论述．1．阐述名言或主题所蕴涵的意义．2．分析并举例使其更充实．The good old proverb ________（名言或谚语）reminds us that ________（释义）. Indeed, we can learn many things form it.First of all,________（理由一）. For example, ____________（举例说明）. Secondly,________（理由二）. Another case is that ________（举例说明）. Furthermore , ____________（理由三）．In my opinion, ________（我的观点）. In short, whatever you do, please remember the say____A. If you understand it and apply it to your study or work, you”ll necessarily benefit a lot from it.人生哲理背诵文本一、成功的关键因素(Critical Success Factor):explain its intended meaning:In my view, it is the real/ indisputable/ undeniable/ uncontrovertible/ unequivocal/ unquestionable /sure-enough （同义替换词）meaning of the drawing that perseverance （变量）is critical for everyone to achieve the eventual goal.Although there are all sorts of/ a number of controversial factors/agents/ ingredients/elements to contribute to success, such as courage and resources, prudence and determination, diligence and frugality, a positive and aggressive attitude, initiative and self-confidence, enthusiasm and optimism, learnedness and curiosity, frustration and perseverance, favorable circumstances, adverse circumstances, chance or opportunity, destiny or fortune, and so on, in my view, as this picture indicates, perseverance is one that is usually more important than all the others.(93字)Support your view with an example/examples:One of the characteristics/properties/features/virtues/qulities/characters of successful people/notable figures/famous people is having perseverance, including novelists, engineers, scholars，poets, artists, thinkers, writers, and mathematicians. For example, Albert Einstein was a simple man but a great scientist in the 20th century, who won a 1921 Nobel Prize. Albert Einstein had a great effect on science and history, and his achievement was even greater than only a few other great scientists have achieved. His creativity or scientific accomplishment is the result of a combination of hard work and perseverance. (82字) In addition, A number of great scientists found that success favors those who persevere, such as EdisonThomas Alva, Alfred Nobel, Sir Isaac Newton, Albert Einstein, Marie Curie, Huxley Thomas Henry, James Watt, Henry Bessemer, Louis Pasteur, Beethoven, Qian Xuesen, Mao Yisheng and so on.Harry Truman: (1884-1972) 美国第33任总统(1945-1953年）A pessimist is one who makes difficulties of his opportunities and an optimist is one who makes opportunities of his difficulties.二、人生观和价值观(philosophy of life and values of life):explain its intended meaning:In my view, it is the real/ indisputable/ undeniable/ uncontrovertible/ unequivocal/ unquestionable /sure-enough meaning of the drawing that we should live each day with gentleness, vigor and a keenness of appreciation, and Life lies in struggling. Greed is a false value. Often we go about our petty tasks, hardly aware of our true values of life. The picture enlightens us becoming more appreciative of the meaning of life and its permanent spiritual values. Life is ten percent what you make it and ninetypercent how you take it. The value of life lies not in the length of days, but in the use we make of them. So having right values in life is very important for us, especially youngster. (103字) 生活有百分之十在于你如何塑造它,有百分之九十在于你如何对待它.生命的价值不在于能活多少天,而在于我们如何使用这些日子。
雅思常用语法总结
雅思常用语法总结雅思考试中常用的语法总结如下：1. 时态：包括一般现在时、一般过去时、现在进行时、过去进行时、将来时、过去将来时等。
时态的正确使用是非常重要的，特别是在写作和口语表达中。
2. 被动语态：被动语态用于强调动作的接受者和动作的重要性。
被动语态的形式为“助动词be + 过去分词”，常用的助动词有am, is, are, was, were等。
3. 条件句：条件句用于表达假设、可能性、推测等。
包括三种类型：零条件句（零条件句表示一般事实）、一般条件句（表示现在或将来的情况）、虚拟条件句（表示与现实相反的假设或不可能实现的情况）。
4. 从句：从句是一个句子中的一部分，具有主语和谓语，可做其他句子的主语、宾语、状语等。
常见的从句包括名词性从句（作主语、宾语、表语等）、定语从句（修饰名词）、副词从句（修饰动词、形容词、副词等）。
5. 并列结构：并列结构用于连接两个或多个相同重要性的句子，可以使用连词and, but, or等。
并列结构使句子更加流畅和有逻辑性。
6. 符合最佳用法：在雅思写作中，使用符合最佳用法是非常重要的。
这包括使用适当的连接词、平衡句子结构和长度、使用多样的句型和长句，并在表达观点时提供足够的支持和证据。
7. 倒装句：倒装句的语序颠倒是为了强调特定的信息或实现平衡和连贯。
常见的倒装情况包括完全倒装（谓语动词位于主语之前）、部分倒装（助动词位于主语之前）和否定倒装（否定词位于句首）。
8. 间接引语：间接引语用于转述别人的话或思想。
常见的引述动词包括say, tell, ask等。
在使用间接引语时，需要注意时态的转换和引号的使用。
这些是雅思考试中常用的语法要点总结，合理运用这些语法规则可以提高语言表达的准确性和流利度。
同时，还需要多加练习，掌握常用的语法用法。
雅思阅读中三种主语从句分析
成千上万人，学洛基英语雅思阅读中三种主语从句分析1. whether 引导的主语从句Whether mobile phone bring more harm than good to us has caused a heated debate.Whether the increase of fuel price can solve the world's environmental problem is a controversial issue.Whether universities should provides students with practical skills or academic knowledge is a controversial issue.2.先行词it开始的主语从句It is obvious that we are living in an information age.(该句是That we are living in an information age is obvious. 的变形)It is obvious that investing in education is investing in one's future.3.what 引导的主语从句What the government should do is to create policies to encourage low carbon development.What most companies and workforces need are not robots, but creative people who can contribute ideas.What the poor countries need most is not money, but advanced technologies and talents in some key areas.“成千上万人疯狂下载。
主语从句在雅思写作中的应用
主语从句在雅思写作中的应用主语从句在雅思写作中是一个常见的句型，可用于强调或者插入一些额外信息。
以下是一些在雅思写作中常见的主语从句的应用：1. 强调问题或现象主语从句可以用于强调问题或现象，使句子更加生动具体。
例如：- What causes climate change is a topic of great concern.- Whether technology has improved our lives or not is a controversial issue.2. 插入个人观点或观点引用主语从句可用于在句子中引入个人观点或观点引用，增加写作的深度和准确性。
例如：- It is generally believed that education plays a crucial role in one's future success.- As Henry Ford once said, "Whether you think you can or you think you can't, you're right."3. 陈述普遍真理或规律主语从句可以用于陈述普遍真理或规律，使句子更有权威性和说服力。
例如：- What goes up must come down.- That honesty is the best policy is a widely accepted principle.4. 表示过去的观点或信仰主语从句可以用于表示过去的观点或信仰，从而突出时态的转变和观点的变化。
例如：- That smoking is harmful to health was once not widely recognized.- It was believed in the past that women should stay at home and take care of the family.请注意，使用主语从句时，需要注意时态的一致性和主谓的一致性。
6雅思托福语法之主语从句
4) It + be +过去分词+从句
e.g.，advised有人说/announced据宣布/consider据认为/decided作出决定 /found out据查明/heard有人听说/hoped有人希望/ordered根据命令 /pointed out有人指出/remembered有人记得/told据告知/thought有人认为 /turned out结果/well known/estimated/expected/hoped//noted/required/demanded/made clear/discussed/ It is said that... 据说…… It is known to all that... 众所周知…… It is reported that... 据报道…… It is believed that...据信……;人们相信…… It is suggested that + (should）do... 建议…… It must be admitted that…必须承认…… It cannot be denied that… 不可否认…… It must be pointed out that…需指出的是……
副词性从句 并列句
主语的四大表现形式
Jane is good at playing the piano.(名词) To see is to believe. （不定式） Smoking is bad for health. （动名词） What he has said is true. (从句）
主语从句 (Subject Clause) 主语从句的概念，什么是主语从句。
It happened that 刚好)I came into the office *________________( at that time. *____________________( It occurred to me that 我突然想起)I forget to sent the letter.
主语从句知识点总结
主语从句知识点总结一、主语从句的构成主语从句一般由连接代词或连接副词引导。
连接代词有：what, who, whom, whose, which 等。
连接副词有：when, where, why, how等。
主语从句通常放在句子的主语位置，由于其句法作用相当于名词，在使用时还需要注意时态和数量的一致。
下面分别对连接代词和连接副词介绍。
1. 连接代词引导的主语从句连接代词what通常引导主语从句，其时态和数量要看引导它的句子的时态和数量而定。
例如：What you said is true.（你说的是真的。
）What we need is time.（我们需要的是时间。
）What we need to do is to work hard.（我们需要做的是努力工作。
）连接代词who, whom, whose, which在引导主语从句时都有其特定的用法。
例如：Who is knocking at the door?（谁在敲门？）Whom you met yesterday was my friend.（昨天你见到的人是我的朋友。
）Whose book is this?（这是谁的书？）Which is your favorite color?（哪种颜色是你最喜欢的？）2. 连接副词引导的主语从句连接副词when, where, why, how等也可以引导主语从句。
其构成也是需要根据引导它们的句子的时态和数量做相应的调整。
例如：When to start the project is still under discussion.（项目何时开始还在讨论中。
）Where to go for the holiday is a big problem.（去哪里度假是一个大问题。
）Why he left suddenly remains a mystery.（他为什么突然离开仍然是一个谜。
）How to solve the problem has not been decided yet.（如何解决这个问题还没有决定。
主语从句的知识点总结
主语从句的知识点总结一、主语从句的引导词1. that“that”可引导宾语从句，如：I know that she is beautiful.（我知道她很漂亮。
）但是“that”也可以引导主语从句, 如：That you are late is not acceptable.（你迟到是不可接受的。
）2. whether“whether”表示“是否”，引导宾语从句，也可引导主语从句，如：Whether we win or lose, we will do our best.（无论输赢，我们会尽最大努力。
）3. who“who”指人，引导主语从句时，句子的谓语动词要用单数形式，如：Who is in charge of the project is still unknown.（谁负责这个项目还是未知的。
）4. whom“whom”也指人，多用于正式场合，引导主语从句，如：Whom the vase belongs to is a mystery.（这个花瓶属于谁是个谜。
）5. whose“whose”表示“谁的”，也可以引导主语从句，如：Whose book is on the desk is unknown.（谁的书在桌子上尚不得而知。
）6. which“which”指物，引导主语从句时，句子的谓语动词要用单数形式，如：Which to choose is the problem.（选择哪一个是问题。
）7. what“what”指事物，引导主语从句时，句子的谓语动词要用单数形式，如：What is delicious depends on personal taste.（美味与否因人而异。
）8. whoever“whoever”指代“任何人”，也可以引导主语从句，如：Whoever stole my wallet is in big trouble.（谁偷了我的钱包麻烦大了。
）9. whomever“whomever”用于正式场合，指代“任何人”，也可以引导主语从句，如：Whomever you choose will be fine.（无论你选择谁都行。
雅思经典必背之主语从句
• 采取有效的措施来结束日益恶化的空气污 染势在必行。
imperative end/ put an end to It is imperative to take some actions
to end the worsening air pollution. It is imperative that some actions
无可争辩，现在有成千上万的人过着挨饿受冻的 痛苦生活。
starvation，exposure
It is indisputable that millions of people today are still living a miserable life, facing the danger of starvation and exposure.
雅思经典必背
主语从句
现在，人们普遍认为没有一所大学能够在学生 毕业的时候教给他们所需要的所有知识。
Now, it is generally believed that no college or university can give students all the knowledge they need by the time they graduate.
What I am going to say is very important.
should be taken to put an end to the worsening air pollution.
Байду номын сангаас
人们普遍认为现代科技使我们的社会发生了巨大 的变化，近几十年人类在科技方面取得了惊人的 进步。
It is commonly thought that our society had dramatically changed by modern science and technology, and human had made extraordinary progress in knowledge and technology over the recent decades.
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Why the sun in tபைடு நூலகம்e morning looks bigger than the sun at noon is very interesting.
二、主语从句的拓展： 主语从句放在句首，句子常常显得比较笨重，因此常 把它移至句子末尾，而用it来作形式主语。例如：
• That he is the best student in the class is obvious. = It is obvious that he is the best student in the class.
IELTS Grammar
Carrol Han
Lesson 3-1
名词性从句主语从句
一、定义：
主语从句是在复合句中充当主语的从句。主语从句的位置与陈述句 基本结构中的主语相同。
主语从句的引导词：
(1)从属连词that ，whether • 中国有着悠久的历史是众所周知的事实。
That China is a country with a long history is a well-known fact. • 手机是否给我们带来的坏处多于好处已经引起了热烈的讨论。
It is good news that… It is common knowledge that… • 事实上投资教育就是投资一个人的未来。 It is a fact that investing in education is investing in one’s future.
用“it”作形式主语的主语从句常见的有：
It is + 形容词 +从句： It is clear that… It is (un)likely that… It is important that… It is certain that…
• 很明显我们生活在信息时代。 It is obvious that we are living in an information age.
It is + 过去分词 + 从句：It is said that… It is reported that… It has been proved that… It is estimated that…
• 已证明人类活动对环境有着最大的影响。 It has been proved that human activities have the greatest impact on environment.
造句练习： • 你是否能成功地实现梦想取决于努力工作而不是运气。
Whether you can succeed in making your dream come true depends on hard work more than luck. • 据报道中国又成功地向太空发射了一颗人造地球卫星。 It is reported that China has sent another man-made earth satellite into space. • 信息技术是福是祸正被人们热烈讨论。 Whether technology is a blessing or a curse is discussed heatedly by people. • 恐龙为什么会灭绝对于科学家和研究者来说一直是个迷。 Why dinosaurs became extinct has long been a mystery to scientists and researchers. • 家长在孩子面前的一举一动将对小孩的行为举止有重大影响。 What the parents do and how they behave in front of their children will have a great impact on their children in shaping their behaviors. • 什么因素导致一些稀有物种的灭绝一直是科学家的研究重点。 What factors contribute to the disappearance of some rare species has always been a research focus of scientists.
(3)连接副词 where, when, how, why • 这件事是怎么发生的任何人都不清楚。
How this happened is not clear to anyone. • 你的思想和行动将会影响你的人生。
How you think and act will influence your life. • 为什么早晨的太阳看上去比中午的太阳大是很有趣的。
(2)连接代词who, whom, whose, what, which, whoever, whatever, whichever， • 你所说的是正确的。
What you said is quite correct. • 大多数的公司需要的不是机器人，而是能够贡献主意的有创造能力的人。
What most companies need is not robots, but creative people who can contribute ideas. • 贫困国家最需要的不是钱，而是先进的科技和人才。 What the poor countries need most is not money, but advanced technologies and talents. • Whoever wants to reach a distant goal must take many small steps. • Whatever you love and trust in this world loves you in return.
• 很奇怪，Bill昨天没有来。 It is strange that Bill did not come yesterday.
• 飞机何时起飞还没宣布。 It has not been announced when the plane is to take off.
用“it”作形式主语的主语从句常见的有： It is + 名词 + 从句: It is a fact that…