高中英语unit3ahealthylifesectionⅲgrammarit的用法(1)课件新人教选修6
4．注意以下固定句型
It seems(ed)/appears(ed) that ... It (so) happened that ... It turns(ed) out that ... It occurred to sb. that ... 似乎…… 碰巧…… 结果是…… 某人突然想起……
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．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。
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。
[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baby C．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?
动名词(短 ④用在“It is＋no use/good＋动名词(短语)”中，it指代__________ 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 。
Section Ⅲ Grammar— it的用法(1)
语法图解
探究发现 ①It is a utiful 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.
(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．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。
[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
高中英语UNIT3AHEALTHYLIFESECTIONⅢ_GRAMMAR课后习题含解析新人教版选修
Unit 3A healthy life主题语境:人与自我——生活与学习Section Ⅲ— Grammar课后篇巩固提升一、根据汉语提示完成句子1.They (还没有公之于众) wherethey are to hold the conference.2.I think (对我们来说是不可能的) to finish our work on time.3. (据报道) two people were injured in the accident.4. (那是没有用的) saying any more about it.5. (那是我的职责) to help you improve your English.6. (众所周知) that smoking does harm to people’s health.7. (要花我们十分钟) to walk to school every day.8.We should always (记住) that the earth is our only home.(我讨厌那样)when you say such things in public.10.I would (非常感激)if you could help me with it.二、变式训练(用it改写下列句子)1.To arrive there on time seemed impossible.to arrive there on time.2.He bought her a birthday present.That was very kind of him.= to buy her a birthday present.3.He is said to have studied abroad.he has studied abroad.4.You found your wallet.That is lucky.to find your wallet.5.She is ill in hospital.That is a pity.she is ill in hospital.6.That he doesn’t like it is very clear.he doesn’t like it.7.Discussing the problem again is no use.discussing the problem again.三、七选五阅读理解(2019全国Ⅰ高考)Is Fresh Air Really Good for You?We all grew up hearing people tell us to “go out and get some fresh air”. 1 According to recent studies,the answer is a big YES,if the air quality in your camping area is good.2 If the air you’re breathing is clean—which it would be if you’re away from the smog of cities—then the air is filled with life-giving,energizing oxygen.If you exercise out of doors,your body will learn to breathe more deeply,allowing even more oxygen to get to your muscles(肌肉) and your brain.Recently,people have begun studying the connection between the natural world and healing(治愈). 3 In these places patients can go to be near nature during their recovery.It turns out that just looking at green,growing things can reduce stress,lower blood pressure,and put people into a better mood(情绪).Greenery is good for us.Hospital patients who see tree branches out their window are likely to recover at a faster rate than patients who see buildings or sky instead. 4 It gives usa great feeling of peace.5 While the sun’s rays can age and harm our skin,they also give us beneficial Vitamin D.To make sure you get enough Vitamin D—but still protect your skin—put on sunscreen right as you head outside.It takes sunscreen about fifteen minutes to start working,and that’s plenty of time for your skin to absorb a day’s worth of Vitamin D.A.Fresh air cleans our lungs.B.So what are you waiting for?C.Being in nature refreshes us.D.Another side benefit of getting fresh air is sunlight.E.But is fresh air really as good for you as your mother always said?F.Just as importantly,we tend to associate fresh air with health care.G.All across the country,recovery centers have begun building Healing Gardens.四、完形填空As an older student at your school,do you sometimes feel a kind of responsibility?I was lucky enough to be named one of our prefects (级长).My 1 has so far meant that I’ve had to help with school meetings,events,and many 2 across the school.One of the events was a soccer tournament for 7th and 8th year prefects in September.We had to 3 a soccer team made up of several prefects for the tournament.4 at the soccer field on the day of the tournament,we were full of5 that our6 and age would be enough for us to win.7 ,we had underestimated (低估) the situation.The younger students quickly started dominating us,and8 beat us.We were9 of the competition after the first game!Having been 10 ,we realized that our size and age really didn’t 11 ,as the younger students were not intimidated (威胁).However,although we were defeated,we were able to talk to the 12 students afterwards,which was quite 13 .After our pitiful attempt at 14 soccer,we had to help referee (裁判) the final few 15 .Refereeing was a difficult task,as a bad 16 could cost a team the game.17 for me,there were no extremely difficult decisions.After refereeing,we were all given dinner and the student leaders and the younger kids all 18 together.At that moment I 19 the true job of a prefect—we are here to 20 the school.1,这些是级长的工作内容。
高中英语-Unit-3-A-Healthy-Life-grammar
A. for; learning
B. of; learning
C. of; to learn
D. for; to learn
8. It’s very kind ___ you ______ me..
A.for, helping
B. of ,help
C. for, to help
D.of, to help
3.It is amazing that the Chinese women's volleyball team won the championship in the sports event. That the Chinese women's volleyball team won the championship in the sports event is amazing.
A. who is he B. who he is C. who is it D. who it is
Homework
Champion Students’ Way状元之路P31-32
Unit 3 A Healthy Life
Grammar: The use of “it”
It is It is a movie. It was showed in 2010. “Monster It is about a man who is Hpruegnnta”n.t and gives birth to a monster called Wuba. What is the name of the movie?
What is the name of the disaster?
It is a sports event.
It is tIht weas2h0e1ld6in Rio in 2016.
2020_2021学年高中英语Unit3AhealthylifeSectionⅢGrammar教师用书教案新人教版选修6
Unit 3 it的用法(Ⅰ)语境自主领悟先观察原句后自主感悟1．It is a beautiful day here and I am sitting under the big tree at the end of the garden．2．Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up．3．Believe me，I know how easy it is to begin smoking and how tough it is to stop．1．例句1中的it作非人称代词，此处指代时间。
2．例句2中的第一个it作形式宾语，真正的宾语为后面的不定式短语to give it up；第二个it作人称代词，代替前文提到的名词smoking。
3．例句3中的第一个it作形式主语，真正的主语为后面的不定式短语to begin smoking；第二个it也作形式主语，真正的主语为后面的不定式短语to stop。
一、用作代词1．it作非人称代词常用于指代时间、距离、自然现象、量度、价值等。
It is time to get up．(指时间)到起床的时间了。
It is going to snow．(指天气)(天)要下雪了。
It is a long way from my school to the hospital．(指距离)从我的学校到医院(距离)很远。
2．it用作人称代词代替前文提到的事物或动物、指婴儿(尤指性别不明者)，未指明但谈话双方都明白的事情或情况。
Her baby's due next month．She hopes it will be a boy．(代替前文提到的Her baby) 她的孩子该下个月出生。
她希望会是个男孩。
高中英语unit3ahealthylifesectionⅲgrammar6英语_00001
名师点睛 it 还可在答语中代替指示代词 this 和 that。 －Whose dictionary is that？那是谁的词典？ －It's mine.我的。
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考点·研讨 1. [2013·大 连高二检测 ]The pop singer is talented and elegant.________ is no surprise that she has so many fans around the world. 答案研讨：It 句意：那位流行歌手才貌出众。她在全世界 拥有这么多的粉丝并不奇怪。句中 that 引导主语从句，所以空 格处用 it 作形式主语。
作非
面。
是泛指时
人称
Is代词
It's over 200 miles from London to
距离、温 Manchester. 从 伦 敦 到 曼 彻 斯 特 有
度、环境等 200 多英里。
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用法 举例
例句
Apparently it's cheaper to fly than to go by train.很显
所知晓
词
我，不是我的主意。
的动物
This little dog is very lovely. It belongs to my 或事物
neighbour.那只小狗很可爱，是我邻居的。
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用法 举例
例句
不 指 具 体 It was 11 o'clock but he hadn't
turned up.11 点了，他却还没有露 的东西，而
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4. [2013·杭州高二检测]－Do you like ________here? －Oh, yes. The air, the weather, the way of life. Everything is nice. 答案研讨：it 考查代词 it 的用法。句意：——你喜欢这里 吗？——噢，是的。(我喜欢)这里的空气、天气、生活方式。这 里的一切都是美好的。it 用来指代下句中的 the air，the weather， the way of life。
高中英语unit3ahealthylifesectionⅲgrammar—it的用法(ⅰ)6英语
ห้องสมุดไป่ตู้
02 课后训练
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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.
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(3)It be＋adj.＋doing...做……是……的。(常用于本句型的形 容词有 useless, worthwhile 等)
(4)It be＋adj.＋that...(对某人来说)做……是……的。(常用于 此句型的形容词有 necessary, important, strange, natural 等)
Unit 3 A healthy life Grammar
Unit 3 A healthy life Grammar "It"用法一、it 作人称代词1. it的最基本用法是作代词，主要指刚提到的事物，以避免重复:Xi’an is a beautiful city, isn’t it?2. 也可以指动物或婴儿(未知性别的婴儿或孩子):Is this your dog？No, it isn’t.二、it作非人称代词it有时并不指具体的东西，而泛指天气、时间、日期、距离、价值、度量、温度、环境等，称为非人称的it：指天气：It is a lovely da y, isn’t it?It is a bit windy.2. 指时间: It was nearly midnight when she came back.3. 指环境: It was very quiet in the café.4. 指距离：It is half an hour’s walk to the city centre from my home.5. 指日期：--What's the date today? --It's May 1, 2007.6. 指季节：It is summer now.7. 指度量：It is about 5 kilograms.8. 指价值：----What's the cost of the T-shirt?----It is 150 yuan.三、it用作形式主语替代作主语的从句、动词不定式、动名词，而把真正作主语的从句、动词不定式、动名词置于句尾。
1.代作主语的动词不定式（1）It be adj.（for sb.）to do sth.此处adj. 通常为描述事件的形容词：easy，difficult，hard，necessary，unnecessary，possible，impossible，likely，unlikely，right，wrong，important，unimportant，legal，illegal，well-mannered，ill-mannered，polite，impolite，clear，obvious，certain，suitable，proper，fit，useful，useless，dangerous…It is illegal（for a teenager）to drive a car without a license.（2）It be adj. of sb. to do sth.此处adj. 通常为描述人的形容词：kind，unkind，nice，rude，cruel，considerate，thoughtful，thoughtless，careful，careless，silly，foolish，stupid，clever，wise，crazy.It's kind of you to help me with the problem.(3)It替代作主语的动名词的常见句型It's no good/use doing…It's（well）worth doing…It's（well）worth one's while doing/to do…It's（well）worth while doing/ to doIt's no use crying over spilt milk.2.it作形式主语替代主语从句①It is adj. +clauseIt is clear ( obvious，true，possible, certain …) that ...该句型中it 是形式主语，真正的主语是that 引导的主语从句，常译为“清楚（显然, 真的……）”是主语从句最常见的一种结构。
Unit 3 A healthy life Grammar(教师版)
B6U3 Grammar The use of “it” (I)1.用作代词⑴用作人称代词，代替前文出现的事物。
Eg：Guangzhou is a beautiful city, isn’t it?练习：My pen is missing. I can’t find it anywhere.(我哪儿都找不到它)⑵指代动物，性别不明的人或婴儿。
Eg：Is this your dog？No, it isn’t.Who is knocking at the door? It might be the poster.My wife gave birth to a baby yesterday. It weighed 4kg.练习：——Who is it? ——It’s me, Henry. (是我，Henry.)⑶用以指代指示代词this/that.Eg：——Whose book is that? ——It’s Mary’s.——What’s this? ——It’s a watch.练习：——What’s this? ——It’s a kind of food. (这是一种食物。
)2.用作非人称代词，表示时间，日期，地点，天气，距离，环境等。
Eg：It is ten o’clock.(表示_______)时间，It's May 1, 2007.(表示_______)日期It is a good place which is worth a visit.(表示_______)地点It is a bit windy.(表示_______)天气It is four meters’walk to the city center from my home.(表示_______)距离It was very quiet in the café. (表示_______)环境练习：It’s a good day today. 今天是个好日子。
2017_2018学年高中英语Unit3AhealthylifeSectionⅢGrammar_it的用法1教学案新人教版
Unit 3 A healthy life Section Ⅲ Grammar-it的用法（1）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。
高中英语Unit3Ahealthylife知识讲解Unit3Ahealthylife语言点教案
Unit 3 A healthy life 语言点编稿：牛新阁审稿：王春霞学习目标要点词汇abuse, stress, ban, quit, effect, strengthen, desperate, disappointed, ashamed, risk要点短语due to, be addicted to, be accustomed to, decide on, in spite of, get into, take off , feel like 要点句型As you know...do 组成的重申知识解说要点词汇abuse【原句回放】Drug abuse 滥用药物【点拨】 abuse n. & vt.滥用，凌虐，谩骂He was arrested on the charge of abuse of power. 他因滥用权利罪而被捕。
Child abuse is widespread in this country.这个国家凌虐小孩的状况很广泛。
I’ll lend you my camera but don ’tabuse it. 我会把照相机借给你，但你得珍爱使用。
【拓展】前缀ab-，常表示“偏离，远离，不”或用于增强语气。
abuse = ab（偏离） + use（使用）abnormal 不正常的= ab（不） + normal （正常的）abortion 流产=ab（不） +bor （ born 的变体，出生）+tion （名词后缀）aboard 上船 =ab（增强语气to） +board（板子、甲板）stress【原句回放】Stress 压力【点拨】 stress n.（精神）压力，紧张，重音vt. 侧重，重申，重读常用搭配：under the stress of ... 为 ......所迫，在 ......压力下lay/ place/ put stress on... 把要点放在 ......上Stress is often a factor in the development of long-term sickness.压力常常是疾病长久不愈的要素。
高中英语优质课课件-unit3 a healthy life grammar
“It” used as formal subject—it 作形式主语
• Summary：“It“作为形式主语，其本身并无意义，其 真正的主语通常是不定式和主语从句。
• Structure: • Sentence①② • Sentence③④ • Sentence⑤⑥ • Sentence⑦⑧
It is +__a_d_j_.__(for sb)to do sth It is +__n__. ___(for sb)to do sth It is +__a_d_j_.__that-clause It is +__n_.___that-clause
“It” used as formal subject——it 作形式主语
• 【探究2】 • ①It is important for us to keep healthy in school life. • ②It is necessary for us to balance study and life. • ③ It is a good idea for us to take exercise every day. • ④It is a bad habit to sit in the classroom every day without
•
v.+it+___a_d__j.__to do
• 常用的有：
Subject（主语）+think/believe/make/find it+adj/n. to do
• e.g. Istudy English.
•
I think it necessary to keep healthy.
• _I_t _is__n_o__u_s_e__a_rg__u_in_g__a_b_o_u__t _th_i_s_t_h_i_n_g_._________