i形式主语的句子
1.It is quite certain that he will be at the meeting. 2.It is surprising that he came late to school this morning. 3.It is important that we should study hardpolite, impolite. It , ，这类过去分词有;out when he called，这类形容词常是表示心理品质;not;动词不定式 这类句型常用形容词easy;good, no use, a . 3;be It with to truth;fact, a , his dictionary with others, foolish;come be . =He se。
It took him 4 hours to do his homework yesterday.形式主语是动词不定式的一种,它也是逻辑主语, 可以把它归类到逻辑主语的第一种(不定式的逻辑主语) 用作宾语的不定式，用作目的状语，用作结果状语的不定式都是属于不定式的大概念里面的. 形式主语it It+ is/was+形容词/名词+不定式 It+ is/was+。
【It作形式主语常见句型】 动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有： 1. It + be + 形容词+主语从句，如： It is uncertain whether he can come to Jenny’s birthday party 。It代替从句作形式主语的常见句型 1. it 代替连词 that 引导的从句作形式主语。 1) it + be + 过去分词 + that 从句: It's said that Tom has come back from abroad . It was reported that dozens of children died in the accident . 可用于该。
我们很难一辈子不犯错误 It is hard for us not to make any mistakes all our life.it is +adj + to do It is no use doing It seems that 等
翻译：我所遭遇的不幸，都在其中携带了明日之幸运的种子。 主语：Each misfortune 。 i encounter 作为修是主语的定语。 谓语：will carry it 指代 Each misfortune carry 的宾语：the seed of tomorrow 's good luck修饰the seed 。 句子主干：。稍微改变一下语序就很清楚了： Each misfortune (that) I encounter will carry the seed of tomorrow 's good luck in it. 我遇到的每个不幸里面都会蕴藏着明天好运的种子。 (that) I encounter是定语从句，修饰misfortune。 the seed是carry的。
形式主语句
It is hard to catch birds with an empty hand. 形式主语不定式做主语后置 空手捉不到鸟儿。 It is useful to know how these principles work. 你记新英语单词感觉到轻松吗? 注:这是一个形式主语句型。形式主语是动词不定式的一种,它也是逻辑主语, 可以把它归类到逻辑主语的第一种(不定式的逻辑主语) 用作宾语的不定式，用作目的状语，用作结果状语的不定式都是属于不定式的大概念里面的. 形式主语it It+ is/was+形容词/名词+不定式 It+ is/was+。
It is said that he is the murderer. 听说他是凶手。 这个句子中it是形式主语，没有实际意义。he是真正主语。 可以说两个都是主语。因为都有比较明确主系表结构。主要是动名词和不定式作主语时的用法。如： 晚睡对健康是有害的。 Going to bed late is bad for health.---It's bad for health to go to bed late. 我今天下午的任务是照看这小孩。 My task this afternoon is to look after the child, It's 。
动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首，常见句型有： 1. It + be + 形容词+主语从句，如： It is uncertain whether he can come to Jenny’s birthday party or not. 2. It + be + 名词。是的 it 作形式主语，主要分为下列三种情况：不定式作主语、动名词作主语 和 名词从句作主语。具体分析如下 不定式作真正主语 主要用于下列句型： ⒈It + is/was + adj./n. (形容词或名词） +to do sth. A. 名词作表语。主要有a pity,a pleasure,。
1.It is quite certain that he will be at the meeting. 2.It is surprising that he came late to school this morning. 3.It is important that we should study hardIt is necessary for you to learn English 不懂追问*^__^* 请采纳,谢谢！
It作形式主语的三种句型【热身训练】Ⅰ.单项选择()1.—Isittotalkwithher?—Yes.Sheisnotalwaysfriendlytoothers.A.kindB.easilyC.meaningfulD.tough()2.ItismeaningfulusactiontoprotectourEarth.A.of;totakeB.for;totakeC.of;takingD.for;takingⅡ。1、判别方法不同 主语从句中 It is / was 后通常有名词或形容词作表语，而强调句型中 It is/ was 后是对主语、宾语或状语的强调成分。其判别方法是去掉强调句式结构或经过语序调整后，原句仍成立。这也是强调句型与主语从句及其它句式的重要区别。