人教版英语选修六高二 unit3 语法 Grammar— it的用法(1)
(完整版)人教版英语选修六高二unit3语法Grammar—it的用法(1)
Section_ⅢGrammar—it的用法(1)语法图解探究发现①It is a beautiful day here and I am sitting under the big tree at the end of the garden.②Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up.③It is never too late to mend.④It is no use talking to them.⑤It is said that he stole the money.⑥I think it difficult to learn English well.⑦We make it clear that speaking to the teacher in that way is not polite.⑧I don't like it when people talk with the mouth full of food.[我的发现](1)①句it表示天气，②句第一个it代替to_give_it_up作形式宾语；第二个it代替句中所说的“吸烟”的事。
(2)在句③④⑤中it用作形式主语，其中句③用在“It is＋形容词＋(for/of＋sb.)＋动词不定式(短语)”中，it指代动词不定式(短语)；句④用在“It is＋no use/good＋动名词(短语)”中，it指代动名词(短语)；句⑤用在“It is＋said/believed/reported＋that从句”中，it指代that 从句。
(3)在句⑥⑦⑧中it用作形式宾语，其中句⑥用在“动词＋it＋形容词＋动词不定式(短语)”中，it指代动词不定式(短语)，句⑦用在“动词＋it＋形容词＋that从句”中，指代that 从句；句⑧it用在某些特殊的句式中，指代when从句。
Grammar it的用法
be+介词短语； 介词短语； 介词短语 e.g. It is against the law to do that. 这样做是违法的。 这样做是违法的。 其他类型的谓语 e.g. It gives me great pleasure to see the movie. 观看这部电影让我很高兴。 观看这部电影让我很高兴。
3. 用于强调结构 要强调句子的某一部分, 通常是主语、 要强调句子的某一部分 通常是主语、 状语、宾语, 可以把it当作先行词 当作先行词。 状语、宾语 可以把 当作先行词。 这种句子的结构是： 这种句子的结构是： “It is/was+被强调部分+that/who+
句子的其他部分” 句子的其他部分”。如果强调的是 人,可以用who, whom代替that。
It remains to be seen whether it will do us harm or good. 对我们有好处还是有害处, 对我们有好处还是有害处 还要等着 瞧。 It was clear enough what he meant. 他的意思很清楚。 他的意思很清楚。
2. 作形式宾语。 作形式宾语。 当复合宾语中的宾语是不定式、 当复合宾语中的宾语是不定式、动 名词、宾语从句时 名词、宾语从句时, 往往把宾语放 在它的补足语后面, 而用 作形式宾 在它的补足语后面 而用it 放在宾语补足语之前。 语, 放在宾语补足语之前。 e.g. I think it no use arguing with him. 我认为和他争吵没有用。 我认为和他争吵没有用。
4. 用作人称代词 代替前文提到的事物。 代替前文提到的事物。 e.g. The frog is not a warm-blood animal. It’s a cold-blooded one.
高中英语Unit3 it的用法Ⅰ课件新人教版选修6
02 课后训练
Ⅰ.句型转换(用 it 作形式主语) 1．We all knew that they had broken their promise. →_I_t_w__as__k_n_o_w_n_t_h_a_t _________ they had broken their promise. 2．If you want to give up smoking in a short time, it will be difficult. →__I_t _is_d_i_f_fi_c_u_lt_t_o_g_i_v_e_u_p_______ smoking in a short time. 3．Since you have spilt your milk, crying over it is useless. →__I_t'_s _u_se_l_e_ss_/_n_o_u_s_e___________ crying over spilt milk. 4．He has made up his mind. You needn't try to persuade him. →_I_t_'s_n_o_t_n_e_c_e_s_sa_r_y_________ for you to try to persuade him.
me how to use the computer. 4．The doctor thought ______it________ better for you to have a
holiday than to keep on working.
5．It never occurred to me _____t_h_a_t ______ you could succeed in persuading him to change his mind.
人教课标版高中英语选修6 Unit3_单元语法详解
Unit3 单元语法详解“it”的用法一、代词it1. 代替前文提到的事物。
如：——Where is the dog?-It's in the bedroom. ——狗在哪?——在卧室里。
2. 指性别不明的婴儿或不明确身份的人。
如：There is a knock on the door. It must be the postman.有人在敲门，一定是邮递员。
3. 代替指示代词this，that。
如：——What's this?——It's a new machine. ——这是什么？——是一种新机器。
二、it 用于某些句型It's time for sth. 该做某事了It's time to do sth. 该做某事的时候了It's time for sb. to do sth. 是某人该做某事的时候了It's(about/high）time+that从句某人该做某事了（从句谓语用一般过去时）It's the first(second)time+that从句某人第几次做某事（从句谓语用现在完成时）It's+时间段+since从句自从……有多长时间了It will be/was+时间段+before从句过多长时间才……(1）It is the first time that I have been here.这是我第一次来这儿。
(2）It is three years since the war broke out.自战争爆发以来有三年了。
(3）It will be half a year before I come back.还得再过半年我才能回来。
三、it用作形式主语当不定式、动名词、从句等复杂成分用作句子主语时，为保持句子平衡，通常把真正的主语后置，而在句首使用形式主语t。
如：(1）It's unknown when he will come.他什么时候来还不知道。
人教版高中英语【选修六】[知识点整理及重点题型梳理] it的用法(1)
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人教版高中英语选修六知识点梳理重点题型（常考知识点）巩固练习it的用法（1）概念引入小词it是我们学英语之初就学会的，是不是感觉它似乎有点无所不能，经常出现呀？那么我们是不是已经了解了it的用法了呢？本单元和下单元我们就把it的用法做一小结。
先看这些句子，想想it的用法是什么？1. It is a beautiful day here and I am sitting under the big tree at the end of the garden.(表天气)2. It seems amazing that at my age I am still fit enough to cycle 20 kilometres in anafternoon.(代替that从句作主语)3. It’s my birthday in two weeks’ time and I’ll be 82 years old!(表时间)4. Your mother tells me that you started smoking some time ago and now you are finding itdifficult to give it up.(第一个it代替to give it up作宾语；第二个it代替上文中“吸烟”的事) 下面我们就先学习it作为代词和形式主语、形式宾语的用法。
用法讲解代词it1. 作人称代词人称代词it是有实义的，是单数第三人称代词。
主格与宾格相同。
1）指代人以外的一切生物或事物，如前文提到的事物或未指明但谈话双方都知道的那件事；Ningbo is a beautiful city, isn’t it? 宁波是座美丽的城市，是不是？It doesn’t matter. 没关系。
2）替代前文中的this, that；This is your plan? Will you hand it in? 这是你的计划？你要交上去吗？3）指代婴儿、小孩或性别不明的人。
人教版本高中英语选修六Book6Unit3Grammar“it”的用法一
高中英语学习资料madeofjingetiejiGRAMMAR“it”的用法（一）【概括】it的用法好多，本单元我们主要学习它的基本用法以及它作形式主语或形式宾语的用法。
1.用作人称代词，指代上文提到的事物、动物、性别不明或没必需知道性其他人。
如：“Where’syourcar?”“It’sinthegarage.”Herdogwashowlingatthedoor,soheletitin.Thebabynextdoorkeptmeawake.Itcriedallnight.用作非人称代词，用来指代时间、日期、地址、天气、温度、距离、环境、状况等。
如：Itwas4o ’clockandthemailstillhadn’tcome.It’squitewarmatthemoment.It’sover200milesfromLondontoManchester.It’sgettingverycompetitiveinthecarindustry.3.用作形式主语，真实的主语常为不定式（短语）、动词-ing形式（短语）或名词性从句。
如：It’s impossibleforustogetthereintime.It’salwayssadsayinggoodbyetosomeoneyoulove.It’sstrangethatshenevermentionedthewedding.4.用作形式宾语，真实的宾语常为不定式（短语）、动词-ing形式（短语）或名词性从句。
如：Manypeoplefindithardtostopsmoking.Shefindsitboringstaying/tostayathome.Ifinditstrangethatshedoesn ’twanttotravel.【辨析】it,one和that1.it指物时，是明确指上文提到的那个事物。
it能够取代单数可数名词、不行数名词及前方提到的事情或状况。
选修六book6unit3grammar-it用法
s+v+it+ adj/n + to do/that…
我认为不浪费粮食是我们的责任。 _I _th__in_k__it__o_u_r_d_u_t_y_n_o_t__to__w_a_s_t_e_f_o_o_d__.
It + be + 过去分词 + 主语从句
注意：常见的过去分词有believed, expected, reported, said, shown，如果主句中的过去分词是表示请求，建议，命令等词如： suggested/ ordered / demanded /insisted / commanded... 等时 that 后的从句要用虚拟语气（should + 动词原形），should 可 以省略
If you can answer correctly, I will give you the thumbs-up .
为你点赞
The group getting the most thumbs-up will be the winner.
积赞最多
A riddle (谜语) Guess who I am . The answer is __?__. 代词我， 本意它， 即可指这又指那；
Unit 3 A healthy life Grammar：The usages of it
一.基本用法: it 做代词
1.用作人称代词，代替前面提到的人（不明确的）或 物,也可以指动物或婴儿.
选修六_Unit_3_Grammar-It_用法
It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours.
It is + n. (a pity, a shame, no wonder ... ) +that ...
It doesn’t matter whether ( if ) ...
该句型中whether (if) 引导的从句是真正主语，该句型常译为 “不论（是否）……没关系……”
It doesn’t matter if they are old.
It worries sb. that…… 某事使某人担心
take it for granted that…
keep it in mind that…
认为…理所当然的
把…记在心里…
We owe it to you that we finished the work on time. I leave it to your own judgment whether you should do it.
It is a pity that he is ill. 他生病了，真遗憾！
It takes sb. some time to do sth.
句型中的不定式是真正的主语，it是形式主语，句型中的直接宾 语是时间，常译为 “做……要花费某人……”
It took thousands of people many years to build the Great Wall.
It’s about an hour’s drive from here to Nanchang.
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Section_ⅢGrammar—it的用法(1) 语法图解探究发现①It is a beautiful day here and I am sitting under the big tree at the end of the garden.②Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up.③It is never too late to mend.④It is no use talking to them.⑤It is said that he stole the money.⑥I think it difficult to learn English well.⑦We make it clear that speaking to the teacher in that way is not polite.⑧I don't like it when people talk with the mouth full of food.[我的发现](1)①句it表示天气，②句第一个it代替to_give_it_up作形式宾语；第二个it代替句中所说的“吸烟”的事。
(2)在句③④⑤中it用作形式主语，其中句③用在“It is＋形容词＋(for/of＋sb.)＋动词不定式(短语)”中，it指代动词不定式(短语)；句④用在“It is＋no use/good＋动名词(短语)”中，it指代动名词(短语)；句⑤用在“It is＋said/believed/reported＋that从句”中，it指代that 从句。
(3)在句⑥⑦⑧中it用作形式宾语，其中句⑥用在“动词＋it＋形容词＋动词不定式(短语)”中，it指代动词不定式(短语)，句⑦用在“动词＋it＋形容词＋that从句”中，指代that 从句；句⑧it用在某些特殊的句式中，指代when从句。
一、it用作人称代词和非人称代词1．用作人称代词(1)it用来指代前面的名词或前面提到过的事。
My friend offered me a beautiful gift yesterday, and I like it very much.我朋友昨天给了我一件漂亮的礼物，我非常喜欢。
(2)指代性别不明的child或baby。
His sister has given a birth to a baby recently and it is very beautiful.他姐姐最近生了个孩子，很漂亮。
(3)指代未出场的身份不明确的人。
—Who is waiting for you at the bus stop?—I have no idea.It may be my brother.——谁在车站等着你？——不知道，可能是我哥哥。
(4)替代前文中的this, that。
This is your plan? Will you hand it in?这是你的计划？你要交上去吗？2．用作非人称代词it用作无人称的主语，不指物，而表示时间、天气、气候、季节、距离等自然现象，或指事物的状态。
It is a fine day today, isn't it?今天是个好天气，对吧？It is five kilometers to the town from the village.从农村到城镇有10里路。
It's ten o'clock.十点钟了。
[即时演练1]匹配下面it的用法A．指代前面的名词B．指代性别不明的child或babyC．指代未出场的身份不明确的人D．时间E．距离①—Who's that at the door?—It is the milkman. __C__②Qingdao is a beautiful city, isn't it?__A__③The baby is crying. It might be hungry. __B__④What a long way it is from Beijing to London! __E__⑤It was nearly midnight when she came back. __D__二、it用作形式主语it常代替由不定式、动词的-ing形式或从句表示的真正主语，作形式主语，而将真正的主语移至句子的后面。
1．代替不定式短语作形式主语It is impossible to get there by boat.坐船不可能到那里。
It's very kind of you to help me.你帮助我真好。
2．代替动名词短语作形式主语常用于以下结构中：It's no use/no good/no fun/useless/a waste of time doing sth.做某事没有用/没有好处/没有意思/没有用/浪费时间。
It is no use giving him some advice.＝It is useless giving him some advice.给他提建议没用。
3．代替主语从句作形式主语It is necessary that the work should be done well.这项工作应该被完美完成是必须的。
It's a pity that I didn't think of it earlier.我没有早一点这么想真是遗憾。
4．注意以下固定句型It seems(ed)/appears(ed) that ...似乎……It (so) happened that ... 碰巧……It turns(ed) out that ... 结果是……It occurred to sb. that ... 某人突然想起……It is said/reported/believed/hoped/well-known/suggested ... that ...据说/据报道/大家都相信/人人都希望/大家都知道/有人建议……It so happened that the tickets were sold out.碰巧票都卖光了。
It occurred to her that she might adopt a homeless child.她突然想到她可以收养一个无家可归的孩子。
It turns out that the situation is quite serious.结果表明情况很严峻。
[即时演练2]补全句子①(2015·四川高考满分作文)I badly need to improve my oral English, so it_is_great_for_me_to_find a native speaker to learn from.我急需提高我的英语口语，因此对我来说找到一个可以向他学习的当地人真是太好了。
②(2014·重庆高考满分作文)It_is_true_that a smartphone plays an important role in our daily life.真的，智能手机在我们日常生活中扮演重要的角色。
③It_is_no_use_trying to solve the problem by force. Peace talks are the only solution.试图用武力解决问题是没用的，和谈才是唯一的办法。
④It_was_said_that the typhoon had caused a lot of damage.据说台风已造成了很多的破坏。
三、it用作形式宾语it常可代替不定式(短语)、动名词(短语)或从句在句子中作形式宾语，而将真正的宾语放在句子后面，it作形式宾语常用于以下几种情况：1．动词＋it＋形容词/名词＋(for/of)＋to do/从句They considered it important to have the work done on time.他们认为按时完成这项工作很重要。
We make it a rule to visit the old every weekend.我们规定每个周末都去拜访那些老人们。
2．动词＋it＋no good/no use/useless/a waste of time/worth one's while等＋doing ...I'll make it worth your while telling me about his secret.告诉我他的秘密，我会酬谢你的。
He thought it no use trying to convince them.他认为企图说服他们没有用。
3．动词＋it＋介词短语＋that ...多亏医生的照料，他身体又好起来了。
4．动词appreciate/hate/love/like/dislike后面接if 或when引导的从句作宾语时，中间需用形式宾语it，构成“appreciate/hate/love/like/dislike＋it＋if/when从句”。
He will appreciate it if they will invite him.如果他们邀请他，他将非常感激。
She hates it when he bragged that he was the most important.她讨厌他自吹自己最重要。
[即时演练3]补全句子①First of all, I think_it_very_important_to_make_more_friends abroad.首先，我认为在国外多交朋友是非常重要的。
②(2014·山东高考改编)Susan made_it_clear_to_me_that she wished to make a new life for herself.苏珊明确向我表明，她想为自己谋得一份新生活。
③(2014·陕西高考改编)I'd_appreciate_it_if you could let me know in advance whether or not you will come.如果你能让我提前知道你是否能来，我会很感激的。
④I think_it_no_use_arguing with him.我认为和他争论是没有用的。
⑤We all take_it_for_granted_that Mile can succeed.我们都想当然地认为米莱能成功。