It的用法及强调句型教学设计
It的用法及强调句型教学设计
[导读] 掌握和运用it的用法，尤其是it在强调句型中的用法。
一、教学目标：
掌握和运用it的用法，尤其是it在强调句型中的用法。
二、教学重点：
1. Its no good / no use / a waste of time (money) + doing.
2. 主语+ hate / dislike / appreciate it + when / if...
3. It + be + 一段时间+ since从句/ before从句.
4. not until / till在正常句型、倒装句型与强调句型中的运用；only + 状语在强调句型和倒装句型中的运用。
5. 强调句型与其他句型的比较。
三、教学难点：
1. “It + be +一段时间+since从句/ before从句”.
2. not until / till在正常句型、倒装句型与强调句型中的运用；only + 状语在强调句型和倒装句型中的运用。
3. 强调句型与其他句型的比较。
四、教学理念：精讲多练，以学生为中心，体现学生的主体性。
五、教学方法：讲练结合，点拨归纳。
六、教学模式：先学后教，当堂训练。
七、教学过程：先学→后教→再练。
1. 先学。看语法指南、完成相关练习、提出疑问。口诀：
代词it本意它, 既可指这又指那; 时间天气均可指, 谈到距离也用它; 假主假宾均可做, 强调句型跟that。
完成句子：
1. ___ (哭没有用) over spilt milk.(use)
2. ___ (我讨厌) when people talk with their mouths full. （hate)
3. It is almost two years ___ (自从她来我们班). (come)
4. ___ (直到我回来) that he left．(return)
5. It was in this village ___ (我长大). (bring)
6. I wonder ___ (是什么) makes you unhappy. (it)
Keys: 1. It is no use crying
2. I hate it
3. since she came to our class
4. It was not until I returned
5. that I was brought up
6. what it is that
2. 后教。讲练结合，点拨归纳重点、难点。
◆点拨一It?蒺s no good / no use / a waste of time (money) + doing.
1. It?蒺s no use ___ (跟他争论). (argue)
2. I think it is a waste of time ___ (等他). (wait)
Keys: 1. arguing with him
2. waiting for him
◆点拨二主语+ hate / dislike / appreciate it + when / if...
___ (我将感激不尽) if you would like to teach me how to use the computer.(appreciate)
(2006山东卷)
Key: I?蒺d appreciate it
◆点拨三“It + be + 一段时间+ since从句”表示从事情发生/ 结束到现在有多长时间了。
“It + be + 一段时间+ before从句”说明一件事与另一件事的间隔，意为“过……才……”。
1. It is almost five years ___ (自从我们见面) each other last time. (see)
(2005北京卷)
2. It is almost five years ___. (他不抽烟快有5年时间了) (smoke)
3. It was some time ___ (我们才意识到) the truth.(realize)
(2005山东卷)
4. ___ (过不了多久) before we meet again. (it)
Keys: 1. since we met
2. since he smoked
3. before we realized
4. It won?蒺t be long
◆点拨四not until / till在正常句型、倒装句型与强调句型中的运用；
only + 状语在强调句型和倒装句型中的运用。
1. ___ (我才离开) until he returned.(leave)
Not until he returned ___(我才离开). (leave)
It was not until he returned ___ (我才离开). (leave)
2. It is only when the disease has progressed to AIDS ___ (一个人才开始) to look sick. (begin)
Only when the disease has progressed to AIDS ___ (一个人才开始) to look sick. (begin)
Keys: 1. I didn?蒺t leave; did I leave; that I left
2. that a person begins; does a person begin
◆点拨五强调句型与其他句型比较。
1. It was on the farm ___ (他工作) last year. (work)
2. It is the farm ___ (他工作) last year. (work)
3. ___ (是星期五) that he came back.(it)
4. ___ (是星期五) when he came back. (it)
5. — Where did you get to know her?
— It was on the farm ___ we worked. (2007山东卷)
A. that
B. there
C. which
D. where
Keys: 1. that he worked
2. where / on which he worked
3. It was on Friday
4. It was Friday
5. D
3. 再练。当堂测试，检查学习效果。
It用法测试
姓名：_____ 分数：_____
1. Can it be in the drawer ___ you put your passport?
A. where
B. in which
C. there
D. that
2. It was July 1, 1997 ___ saw the return of Hong Kong to the motherland.
A. that
B. when
C. which
D. in which
3. It is two years ___ I joined the army.
A. before
B. since
C. that
D. after
4. It was two years ___ I joined the army.
A. before
B. since
C. that
D. after
5. — Was it under the tree ___ you were away talking to a friend?
— Sure. But when I got back there, the bike was gone.
A. that
B. where
C. which
D. while
6. It was not until 1920 ___ regular radio broadcast began.
A. while
B. which
C. that
D. since
7. Someone is knocking at the door. Who can ___ be?
A. one
B. he
C. she
D. it
8. What a pity!My new computer doesnt work. ___ must be something wrong with it.
A. It
B. There
C. This
D. That
9. They have made ___ a rule ___ in the room.
A. this; not to smoke
B. it; smoking
C. it; to not smoke
D. it; not to smoke
10. ___ is a fact that English is being accepted as an international language.
A. There
B. This
C. That
D. It
11. It was only when I reread his poems recently ___ I began to appreciate their beauty.
A. until
B. that
C. then
D. so
12. Someone is ringing the doorbell. Go and see ___.
A. who is he
B. who he is
C. who is it
D. who it is
13. ___ no need for us to discuss the problem again since it has already been settled.
A. It has
B. There has
C. It is
D. There is
高考英语 it的用法教案
it的用法： ⑴it用作人称代词：指代前面已经提到过的动物、事物、小孩或性别/身份不明的人，但应注意：指宠物时常用he/she，指大动物（马、大象等）可以用he/she；指祖国或家乡时，常用she. 注意句子：He failed in the examine，and it worried him. He failed in the examine. It worried him. He failed in the examine，which worried him. ⑵it用作非人称代词：常常用作句子的主语，可以指时间、距离、价格、长度、重量、日期、星期、月份、季节、气候等。 ⑶it用作形式主语或形式宾语：根据句子结构的需要，人们常用it作形式主语或宾语，而把真正的主语或宾语（不定式短语、动词-ing短语或名词性从句）放在句末。注意it作形式主语的常见结构有： ①It+ be + adj/n（for sb）to do sth. ②It +be + adj of sb to do sth. ③It +be + adj /n+ doing sth（一般限于名词fun，good，luck，joy，use，pleasure 或形容词foolish，wonderful，good，nice，interesting，useless，worth等作 表语时，才用it作形式主语，将真正的动名词主语后置） ④It +be + adj./n + that-clause. ⑤It +be+过去分词（如said，proved，known，believed，reported，thought，hoped， decided，announced, suggested，ordered，demanded，proposed，requested，advised 等）+that-clause.注意如果表语是划线部分的词，从句应该用虚拟语气。 ⑥It takes sb some time to do sth. ⑦It seems/looks as if…. ⑷it用在强调句型中： 强调句型“It is/was + 被强调部分 + 其他”的用法 ①这一句型可以强调除谓语、表语、定语和同位语以外的任何部分；如果被强调的部分是人，可以用who/that，如果被强调的部分是事物，只能用that。如：It was I who/that came here late this morning. It is a book that is on the desk. ②注意该句型不能强调让步状语从句；强调原因状语从句时，只能用because，不能用
高考英语It的用法(专项总结及训练)
It的用法（专项总结及训练） 一、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: ①They watched the train until it disappeared in the distance. 2.，也可以指动物或婴儿(未知性别的婴儿或孩子): ②Is this your dog？No, it isn’t. ③They got a baby and it was a ten-pounder 3.，也可指抽象事物或指抽象环境和情景: ③I hate it when people talk with a full mouth.． 二、.非人称代词 1.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： ⑴.指天气：It is a lovely day, isn’t it? ⑵.指时间: It was nearly midnight when she came back. ⑶.指日期:It is April First today. ⑷.指距离:It is some 3000 kilometers from Beijing to Guangzhou. ⑸.指价值:It is three dollars. ⑹.指温度:Today it is 30 degrees centigrade. 三、其他用法 1.在句子的主语不太明确时充当主语，表示谁在做某事： ①Who is it there? It's I (me/you/he.....). ②I thought it was Mary, but it was not she. ③Her face lighted when she saw who it was. 2.泛泛的指某件事：(有时泛指一般情况) ①It doesn’t matter. ②It is a shame, isn’t it? ③How is it going?(情况怎样) ④It says in the newspaper that...... 3.it用在一些词组中，it 没有特别的意思 The last train's gone. Come on, we'll foot it.(来，咱们步行吧。) 四、作形式主语，替代主语从句，动词不定式，或动名词短语： 1.作形式主语替代主语从句 ⑴It is clear ( obvious，true，possible，certain....) that 从句常译为＂┅清楚的（显然的，真的，可能的,肯定的．．．）＂ It is very clear that he’s round and tall like a tree. = That he’s round and tall like a tree is very clear. ⑵It is important ( necessary，right，strange，natural...) that 从句常译为┅是重要的(必要的,对的,奇怪的,自然的┅).that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去，建议记住该句型中的形容词。 ①It is important that we (should) learn English well.
It 的用法总结
It 的用法总结 一. 代词: 1)指代上文 2)指代this/that 3)指代未知性别的婴儿或孩子或身份不明的人 4）指代时间/地点/天气/温度/距离/环境 What does “it” refer to? 1.It gets dark very early in the winter. 2.What will you call it if it’s a boy? 3.I love spring---It’s a wonderful time of the year. 4.It’s less than 100 kilometres from here to Jinan. 5.When the factory closes, it will mean 500 people losing their jobs. 6.What’s this? It’s a cat. 7.It has snowed much this year. 注意：it, one和that, those作替代词的区别 (1)The book in your bag is very interesting. Can I borrow ? (2) The book in your bag is more interesting than ______ on the desk. (3) The weather here is much colder than____ in Nanjing. (4) The books are free. You can take____ free of charge. (5) The books in the bag are better than _____ on the desk. it 表示特指，与前面指代的名词是同一个 one 表示泛指，指代单数可数名词，与指代的名词同类但不同一个 that表示特指，相当于the+名词单数，与指代的名词同类但不同一个those表示特指,相当于the+复数可数名词, 与指代的名词同类但不同一个
It用法和强调句
It用法和强调句 典型例句： 1.---Who is knocking? “---谁在敲门？” ---It must be Li Hong. (不用she). “---肯定是李红。” 比较：---Who is that girl？“---那个女孩是谁？” ---She is Li Hong. “---她是李红。” 注：it作实义代词，代替前面提到过的人、事、物。指代人时，常用于小孩或身份、性别不明的人。 2.Our computer is stolen. Have you heard about it? 我们的计算机被偷了。你听说过这事了吗？ 与下列句子进行比较： （1）As they are retired, Mr.and Mrs. Scott prefer a house in the country to spend their late years to one in a large city. 由于退休了，Scott先生和夫人更想要座乡下的房子而不愿要大城市的来度过晚年。 （2）Few pleasures can equal that of a cool drink on a hot day. 很少有乐趣能同热天的一杯冷饮相等同。 3.It’s half an hour’s ride from here to the station. 从这里到车站开车要半个小时。 It’s midnight when my father came back. 我父亲回来的时候是半夜。 比较：It’s at midnight that my father came back. 是在半夜的时候，我父亲回来的。 4.It took me more than 3 days to finish all the hard work. 花费了我三天多才完成所有这些困难的工作。 试译下列各句： （1）It is time for me to get down to working. 到了我开始认真工作的时候了。 =It is time that I got down to working. （2）这是我第一次来这里。 It/This is the first time that I have been here. 5.How long is it since we visited your mother? 自从看了你母亲后有多长时间了？ 比较下列几个句子： （1）It was a long time that I spent doing the work.(强调句) 我做这项工作是花了很长一段时间。 （2）It was a long time before I finished doing the work.(才) 过了很长一段时间我才完成了这项工作。 （3）It was not long before I finished doing the work . (不久就) 不久我就完成了这项工作。 （4）It is 3 years since I left school.(since句式)。 自从我毕业离校已经三年了。 （5）It will be 3years before I leave school. 要过三年我才能够离校。 6.It is impossible for us to finish so much work in such a short time.
it的用法归纳
?Never be afraid of grammar ?Collect some examples; ?Watch them very carefully; ?Find out something in common; ?Try to use the rules ---- practise. it用法完全归纳 一、it 作人称代词的用法 1.指事物 作为人称代词，it 可以除人以外的一切事物或动物。如： I dropped my watch and it broke. 我把手表掉在地上摔坏了。 It’s hard work, but I enjoy it. 工作很辛苦，可是我乐意干。 “Where is the dog?”“It’s in the bedroom. ”“狗在哪?”“在卧室里”。 2.指人 it 指人主要用于指不性别不明的婴儿或用于确认某人的身份。如： Is it a boy or a girl? 是男孩还是女孩? There is a knock on the door. It must be the postman. 有人在敲门，一定是邮递员。 【说明】在答语中，常用来指本人，如说It’s me。
3.代替某些代词 代词it 还可用于代替指示代词this, that 以及复合不定代词something, anything, nothing等。如： “What’s this?”“It’s a new machine. ”“这是什么?”“是一种新机器”。 Nothing is wrong, is it? 没出什么问题，是吗? 二、it 作非人称代词的用法 1.基本用法 it 作非人称代词的用法，主要用于指时间、距离、价值、天气、气候及温度等自然现象。如： It’s too late to go there now. 现在去那儿已经太迟了。 It rained all day yesterday. 昨天下了一天的雨。 It can get very hot here. 这里有时会很热。 2.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. 某人该干某事了。 It’s (about / high) time + that-从句. 某人该做某事了。(从句谓语用过去式，有时也用“should+动词原形”) It’s first (second) time + that-从句. 某人第几次干某事。(从句谓语用现在完成时)
It's time…用法归纳
It's time…用法归纳 It's time…句型是中学英语里使用频率较高的句型，其意为“该是……的时候了”。用法灵活多变，也是大家以掌握的句型。现就其有关句式归纳如下： ⑴ It's time for + n.“该是（干）……的时候了。”例： Boys and girl, It's time for class. 同学们，该上课了。 ⑵ It's time + (for sb.) to do sth. .表示“该是（某人）干……的时候了。”例： It's time for you to clean the classroom. 该是你打扫教室的时候了。 It's time to go to school. 该去上学了。 ⑶ It's time + that clause 时，that可省略，time可由high,about修饰，从句中的谓语动词有两种形式，或者用动词的过去式(be用were)；或者用shoud + 动词原形（should不能省略)。此句型为虚拟语气句型，表示“现在某人该做某事了”。含有该事早该去做而未做，现在去做似乎都为时已晚的意思。例： It's time （that）we went to bed. 我们该去睡觉了。 It's high time that the article were published. 发表这篇文章是适时的。 It's time you should do cleaning. 你该去打扫卫生了。 4) It's + the+序数词+ time+ that clause.也表示某人第几次做某事。例： It is my first time that I've even written letters. 这是我第一次用写信。
(完整版)it的用法练习题
it的用法练习题（一） 1.It took us over an hour _____________along the street. A. walk B. to walk C. walking D. walked 2.I think it a great honor ________to visit your country. A. to invite B. inviting C. having invited D. to be invited 3.Many people now make_____________ a rule to buy cards for their friends before Christmas. A. themselves B. it C. that D. this 4._____is very clear to everyone that he's round and tall like a tree. A. This B. What C. That D. It 5.In the United States, bus travel doesn't cost much as train travel,_____________? A. don't they B. does it C. do they D. doesn't it 6.Someone is at the door, who is_____________? A. this B. that C .it D. he 7.—It is raining cats and dogs. —_____________ . A. So it is B. So is it C. Neither it is D. Neither is it 8.—My home is in that tall building over there. —_______________? A. Can it see B. Can see it C. Can be seen it D. Can it be seen 9. _____________raining hard for 3 hours without stopping. A. It is B. It was C. It has been D. It had been 10.—Has the boy got his bicycle now? —Yes, the police gave_____________. A. him to him B. it to it C. it to him D. him to it 11.—Boy, —It is, looks like spring is coming soon.
-it的用法及强调句型(精心整理)
it的用法及强调句型 it的用法 一、it作指示代词【完成句子】用one，ones，it，that，those填空 (1) — I can't find my watch. —You haven't found ______？If you want to buy a new ______，I suggest you buy ______ made in China. (2) We've got a big cup and two small ______. (3) The weight of an elephant is much greater than ______ of a tiger. (4) The books on the first shelf are easier than ______ on the second shelf. (5) The boy told his story and ______ of the girl upstairs. 【答案】(1) it; one; one (2) ones(3) that (4) those / the ones (5) that / the one 【结论1】 ①指代上文提过的事物时，it指的是同名同物，相当于the＋名词； ②one指的是同名异物，表示单数可数名词相当于a ＋名词；a / an＋形容词＋one等于a / an＋形容词＋名词；复数形式用ones； ③that后面常有后置定语，有特指意义，代替不可数名词或单数可数名词，相当于the＋ 名词； ④复数名词用those，相当于the ones。 【例句观察】— Someone is knocking at the door. Who is it? — It must be Leo. He said he'd come to see me. 【结论2】it指代人时，常指小孩或身份不明的人。 【例句观察】It's too quiet in the room. Everyone just keeps silent. 【结论2】it可用以指代环境或情况。 (6)— What time is it now? — It's half past seven. (7)— It is spring now and it's warm these days. 【结论3】it可用以指代时间、季节、天气或距离。 【注意】it指代时间时，有如下一些句型： (1) It is time for sth. (for sb.)to do sth. / that－从句(should do / did, 必须用虚拟语气) 例：① It's time for lunch. ② It's time for us to clean the house. ③ It's time that we should clean the house. ＝It's time that we cleaned the house. (2) It is / has been ＋some time ＋since－从句(从句用一般过去时) It is 10 years since I graduated from college. (3) It / This/That is the first / second time that－从句(必须使用现在完成时)这是某人 第……次做了某事。 It / This/That was the first / second time that－从句(必须使用过去完成时) 例：①It is the second time that she has visited the Great Wall. ②This was the first time that I had come late to school. (4) It was ＋时间点＋when －从句 例：It was evening when we got home. ＝It was evening in which we got home. (5) It was / will be ＋some time ＋before －从句 例：①过了5年他们才从北大毕业。 It was five years before they finally graduated from Beijing University. ②不久，我们就要从我们学校毕业了。 It won't be long before we graduate from our school. 二、it作形式主语 1.代替主语从句 ①It is clear ( obvious，true，possible certain....) that ..... “清楚（显然，真的，肯定．．．）” ②. It is important ( necessary，right，strange，natural...) that ... that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去，建议记住该句型中的形容词。 It is important that we (should) learn English well.
it句型(包括强调句等经典句型)(教案)
教学过程 一、复习预习 1、教师出示上节课预留的练习题，根据学生实际情况进行讲解分析； 2、引导学生复习上节内容； 3、并引入本节课程内容。 二、知识讲解 考点/易错点1 it基本用法 ①it用作代词，代替前面提到过的人或事。如： —Is the baby a boy or a girl? —It’s a boy. (it指上文提到的baby) The doctor advised Vera strongly that she should take a holiday, but it didn’t help. (it指上文叙述的事)
注意： it, that, one都可以用来代替前面提到的人或事，但这三个代词之间有不同之处： it用来代替前面提到的可数名词，所指的是事物本身；that用来代替不可数名词，指的是前面提到的名词中的同一类事物；one则用来代替前面出现过的可数名词，并且是指这类事物中的一个。如： I can’t find my pen anywhere. I must have lost it. (it指前面的pen本身) Life today is much better than that in the old days. (that指代前面提到的与life同类的事物) I can’t find my pen. I’m going to buy one. (one指前面的pen这类事物中的一个) ②it可用来指天气、时间、距离、自然环境等。如： It was very cold in Beijing in winter. （it指天气） It was too late and I had to leave for home. （it指时间） What a long way it is from Beijing to London! （it指距离） It was quiet in the school at night. （it指自然环境） ③it可用来指人，特别是不知道对方的性别时。如： Whose baby is it? It’s very lovely. 考点/易错点2 It 用作形式主语 当不定式（短语）、动名词（短语）或从句在某个句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it作形式主语置于句首，而将真正的主语放在句尾。此时it 只起先行引导作用，本身无词义。 e.g. It is wrong to tell a lie. (说谎是错误的。) 〔It为to tell a lie的形式主语〕
1it的用法和强调句型
it的用法和强调句(20) 1．It was only when the accident took place _________ （他才意识到）the importance of careful driving．（realize） that he realized 2．I heard that it was ten years later, in 2010, _______________(他们的婚姻破裂).(break) that their marriage broke up 3. It __________________________(直到战争结束) that he returned home. (end) was not until the war ended 4.Actually, it was not until I was appointed to be in charge of the research team_____________ the importance of teamwork. (aware) 实际上，直到我被指定负责这个研究小组的时候我才意识到团队合作的重要性。 that I was aware of考查强调句和短语。题干使用了句型''it was not until.. .that...", 因此本空是强调句的后面部分，应用that, 用be aware of表示"意识到，知道"。 5. Communication becomes more convenient nowadays. Cellphones ______________ (使得这成为可能)for us to talk to anyone from anywhere. (make) make it possible 6．在上学的路上，我突然想起我把英语书忘在家里，所以我不得不回去取。 On my way to school, ___________________________ that I had left my English book at home, so I had to fetch it .(occur) it (suddenly) occurred to me 7 .__________________（坚持在一起）your friends through thick and thin that brings you lifelong friends.（stick） It is sticking with 8．Could you tell me _____________（在哪里）you found the missing boy．（it）where it was that 9. It is your efforts, rather than your intelligence,__________（决定）your success.（determine） that determine 10. I still wonder what it was (令他失望)badly. Shall we go and comfort him?( let ) that let him down 11．Though he was a newcomer, I found it easy_____________ （和他相处）.（get）to get along / on with him 12．I think it important ___________________ (与我们的朋友保持联系). (touch) to keep / stay in touch with our friends 13.Each new way of looking at a situation improves our understanding
It的用法 教案
Grammar of Unit 20 ------The usage of “it”. Teaching goals 教学目标 1. Target language 目标语言 The usage of “it”. 2. Teaching goals教学目标 After learning the usage of “it”，the students can recognize the structure of the sentence，so as to understand it better and use it. 3.Teaching important points and difficult points 教学重点和难点 a. To replace Infinitive phrases, Subject Clauses as the Subject. b. To replace Infinitive phrases,Object Clauses as the Object 4.Teaching methods 教学方法 Teach, learn and practice. 5.Teaching aids 教具准备 Blackboard and some papers 6.Teaching procedures & ways 教学过程与方式 Step I Review and summarize usage of “it” by students Give the students some groups of sentences and let them summarize usage of “it”Step II Showing the usage of “it” Learn the usage of “it” on a piece of paper. Ste pⅢ Practices Do some relative exercises in exercise book and newpapers Ste pⅣSummary Ste pⅤTeaching Reflection(教学反思)
it的用法及句型总结
It的用法 一、Tell the functions for “it” in each sentence: 1、---What’s the weather together ---It is fine. 2. It is hard to communicate with him. 3. I find it hard to communicate with him. 4. It is Li that who cleaned the classroom. 5. It is a book. 二、It 用法归纳 1，指代it （1）.用作人称代词：指代物、整个句子 （2）用作非人称代词 2，形式it：（1）作形式主语（2）作形式宾语 3，强调it 4，特殊句型 5.在答语中指代this/that： 1).--- Whose book is that ---It’s mine. 三、特别注意： it, one和that作替代词的用法及区别 1. it代替前面提到的同一事物,该事物既可以是可数名词也可以是不可数名词。 (特指，指代单数，指代物，同名同物) Can I borrow your pen—Sorry， I’m using it.
2. one代替前面提到的同类事物中的一个。该事物只能是可数名词,前面可以有冠词,也可以被this、that或形容词修饰,其后也可以有定语。（泛指，指代可数名词，指代人或物，同名异物） I have a bike. Do you have one Eg: (1).I bought a dictionary three years ago and I am still using______ now. (2) I bought a dictionary three years ago but I am going to buy a new _______soon. (3). that代替前面提到的同类事物中特指的一个。该事物既可以是可数名词也可以是不可数名词,必须要有后置定语,但不可以有前置修饰语。（特指，指代单数或不可数，指代物，后面有定语） The coffee produced in Brazil is more famous than __________in Mexico. 四：形式主语、宾语、强调句及其他
It的用法及典型句型归纳. 个人总结
It的用法及典型句型归纳 一、人称代词it的最基本用法是作代词，主要指刚提到的事物，想法，以避免重复;也可以指性别不明或性别被认为是不重要的人或动物；未指明但谈话双方都明白的事情或情况。 ①They watched the train until it disappeared in the distance. ②Is this your dog？No, it isn’t. ③I hate it when people talk with a full mouth.． 二、.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： It is a lovely day, isn’t it? // It was nearly midnight when she came back. It is April First today. // It is some 3000 kilometers from A to B. It is three dollars. // Today it is 30 degrees centigrade. 三、作形式主语，替代主语从句，动词不定式，或动名词短语 1.作形式主语替代主语从句 ⑴It is clear ( obvious，true，possible，certain....) that ＂┅清楚的（显然的，真的，可能的,肯定的．．．）＂ ⑵It is important ( necessary，right，strange，natural...) that + (should ) do (虚拟语气) ┅是重要的(必要的,对的,奇怪的,自然的┅) ⑶It is said (reported/ learned/believed/thought/known/told/hoped.....) that = sb / sth is said (reported/ believed /thought…) to do( to be doing/ to have done) sth ＂据说（据报道，据悉．．．）＂。 ⑷It is suggested ( advised/ ordered / demanded/ insisted/ commanded... ) that +(should ) do ＂据建议；有命令．． ⑸It is a pity ( a shame /an honour/a good thing/a fact,/a surprise/... ) that that后的从句一般用虚拟语气（should + 动词原形），should可省去．表示出乎意料，常译为＂竟然＂。没有这种意义时，则不用虚拟语气。 小练一下： It is very clear that he’s round and tall like a tree. = It is important that we (learn) English well. It is necessary that he (remember) these words. It is said that he has come to Beijing. = It is reported that another earth satellite has been put into orbit. = It is suggested that the meeting ( put off). It was ordered that we (arrive) there in two hours. It is a pity that such a thing ( happen) in your class. It is a pity that he (be) ill. 2.作形式主语替代不定式 . ⑴It is kind ( of sb. ) to do sth.= sb be kind to do sth.一般都是表示人的特性的形容词。如： bad /brave /careless/ clever /cruel / foolish / good （好心的）/ honest/ kind / lazy / modest/ naughty/ nice（有教养的）/polite/ rude / silly / stupid / wise ，等。 Eg. It is kind of you to give me a hand. = ⑵It is necessary ( for sb. ) to do sth. .不定式的逻辑主语是由for引起。常见的形容词有： Important/ necessary/ natural/ easy / safe / common / normal / hard / difficult / dangerous/ unusual/ rare / impossible / pleasant Eg. It is important for her to come to the party.
2019-2020年高中英语人教版选修六教学案：Unit 4 Section Ⅲ Grammar— it的用法(2)(含答案)
2019-2020年高中英语人教版选修六教学案：Unit 4 Section ⅢGrammar— it的用法（2）(含答案) 语法图解 探究发现 ①There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon. ②It was a scientist called Charles Keeling, who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. ③They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide. ④It was during the 20th century that the temperature of the earth went up about one degree Fahrenheit. [我的发现] 这些句子都是强调句，句中的黑体词部分标出了句中的强调句结构，即：it_is/was＋被强调部分＋that/who ...句首词用“it”；be动词总是用单数形式，即is或was。连接词一般用that，当强调部分是人时，强调连接词也可用who。 一、强调句的基本用法 强调句就是把句中要强调的部分(通常是主语、宾语、状语或状语从句)放在It is/was和that/who之间，原句中剩余部分放在that/who之后。 1．强调句的陈述句式 “It is/was＋被强调部分＋that/who＋其他剩余部分．” The 2022 Winter Olympic Games will take place in Beijing and Zhangjiakou.
高中英语语法知识之It的用法总结
高考英语语法知识之It 的用法总结 1．It is + 被强调部分+ that ... 该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，状语。强调的主语如果是人，that可以由who换用。 如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。 It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father. 2．It was not until + 被强调部分+ that ... 该句型也是强调句型。主要用于强凋时间状语，译成汉语＂直到．．．才．．．＂，可以说是not ... until ... 的强调形式。 It was not until she took off her dark glasses that I realized she was a famous film star. = Not until she took off her dark glasses did I realize she was a famous film star. = I didn’t realize she was a famous film star until she took off her dark glasses. 3．It 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，肯定．．．）＂是主语从句最常见的一种结构。 It is very clear that he’s round and tall like a tree.= That he’s round and tall like a tree is very clear. 4. It is important ( necessary, right, strange, natural...) that ... 由于主句中的形容词不同，that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去。 It is important that we (should) learn English well. It is necessary that he (should) remember these words. 5. It is said (reported, learned....) that ... 该句型中的it 仍是形式主语，真正主语是that 引导的主语从句。该结构常译为＂据说（据报道，据悉．．．）＂。It is said that he has come to Beijing. 6. It is suggested ( ordered ... ) that ... 主句中的过去分词是表示请求，建议，命令等词时，that后的从句要用虚拟语气（should + 动词原形），should 可以省。常译为＂据建议；有命令．． It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours. 7. It is a pity ( a shame ... ) that ... 该句型中，that后的从句一般用虚拟语气（should + 动词原形），should可省去．表示出乎意料，常译为＂竟然＂。没有这种意义时，则不用虚拟语气。 It is a pity that such a thing ( should ) happen in your class. It is a pity that he is ill. 8. It is time ( about time ,high time ) that ... 该句型中that 后的从句应该用虚拟语气，值得注意的是①常用过去时态表示虚拟．②有时也用should + 动词原形，should 不能省。常译为＂是（正是）．．．的时侯．．．＂。 It is time that children should go to bed. = It is time that children went to bed. 9. It is the first ( second ... ) time that ... 该句型中的that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人第几次做某事了＂。 It is the first time I have been here. = This is the first time I have been here. 10 It is the +形容词最高级+ 名词+ that + ….. 该句型中的that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中that 可以省去；it有时用this / that 替换．常译为＂这是某人做过的最…的事情＂。 This is the best film that I have ever seen . That was the worst song that he had heard . 11. It is .... since ...