It 用法大全
一、指无生命、动物、植物和在性别不计或不详时指人和婴儿。There is a person knocking at the door Who can it be
二、指心目中的人或上文中提到的人或事物,这那它 He is fifty-two, but doesn't look it
Jim is ill Have you heard of it
三、可以代替指示代词this和that
What's this/that? ------It's a book。
四、作无人称代词的主语,表时间、天气、距离、温度、环境和情况。It was noisy when I got to the room
五--表含糊概念,无补语,指从句叙述内容。
I hate it that I've made so many mistakes
I hate it when you can't discuss things openly
You may depend on it they are valuable
How's it going with you 近况如何?
Does it itch much 很痒痒吗?
Where does it hurt 哪儿疼?
Now you are in for it 现在你可以到家了。
It says in the Bible, "Thou shalt not steal" 《圣经》上说:"勿偷窃。" Hang it all, we can't wait all day for him见鬼,我们不能整天等他呀! There is nothing else for it but to stand 别无他法,只好忍受。Whose turn is it next 接下来轮到谁了You never had it so good 日子从来没有这样好。Take it easy 放松点!不要紧张!
How is it in the market 超市情况如何?
六----强调句中使用"It is/was+强调部分 (主语,宾语等)+that/who+其余部分"。如果强调的是特殊疑问句,表示"究竟,到底"等语气时,就用结构:"疑问词+is/was it that +句子",如:Where was it that you met him What is it that he wants to see When was it that you saw him
Why is it that you want to change your idea
这类强调句也可用作表语或宾语。The question is which book it is that you want to buy
He found out who it was that saved the drowning boy
如果强调谓语,谓语动词部分的语气用do,does,did,常译作"的确,千万,真的"
Do be patient! 千万要耐心!He does speak English well。He said he would come and did come
七、作形式宾语
a) 谓语动词appreciate, dislike, like, hate, love, make (按时到达,成功)等后接由if或when 等引导的宾语从句时,往往在前面加上形式宾语it。 I would appreciate it if you could come to my birthday party
2、动词have(表明,坚持说)、take(认为,猜想)、hide(隐藏)、publish(公布)、put(表达,写出来)等后接由that引导的宾语从句时,往往在从句的前面加上形式宾语。I take it that you will be leaving Shanghai soon我认为你不久就离开上海。
We published it that we had finished the project ahead of time 我宣布我们已经提前完成了这项工程。
3、 动词短语allow for(担保)、count on(期待)、depend on(依靠)、insist on(坚持)、see to(确保)等后接that引导的宾语从句时,必须冠以形式宾语it。 如:I am counting on it that you will come 我们期待着你的到来。
She'll see to it that he goes ahead。 她确保让他先走。
八、 作形式主语-it作形式主语,真正的主语可以是to do,doing 和clause等
It 做形式主语,真正的主语是动名词,这类结构是it be + adjective/noun + doing, 这类词有nice, good, useless, hard, foolish, enjoyable, worthwhile, 和名词use, good, fun, job, a waste of 等。如:It is no use trying to argue with Shylock
It 作形式主语时,常用于下列四种结构,且由固定译法
a) it + be + noun + that-clause
it is a fact that…事实上是……
it is common knowledge that众所周知的是……
it is a question that………是个问题
it is a pity that…可惜的是……
it is a wonder that………真是个奇迹
it is a shame that…可耻的是……
it is an honor that…非常荣幸……
it is a common saying that…俗话说……
it is no good that………是没用的
it is no use that… 做……是无用的
it is one's turn to do 轮到……做……
it is one's duty to do 做……是……的职责
it is one's fault to do 做……是……的过错
it is worth that 可以看出…;可以说……;
it is no wonder that…难怪……
it is no good that做……是没用的
it is no harm that做…是无害的,无妨是…
I think it would be a good idea to do 我认为做……是个好主意
it is a great joy/pleasure to do 高兴做……
it is a shame to do 做……不光彩
it is good manners to do 做……是有礼貌的
it is a waste of time to do…做……是浪费时间
b) it + be + adjective + that-clause
it is certain that…很肯定的是 ……
it is clear/evident that…很清楚……
it is unlikely that…未必会,不见得,不太可能
it is likely that…很可能……
it is better that…最好……
it is natural that…很自然……
it is necessary that有必要……
it is obvious that … 很明显……
it is important that重要的是……,……是重要的
it is impossible that………是不可能的
c) it + be + past participle + that-clause
it is said/reported that…据说/报道……
it is demanded that…按要求……
it is estimated that…据统计……
it is believed that… 据认为……;人们认为……
it can be said that…可以说……
it can be seen that …可见……,可以说……
it has been proved that…已经证明……
it has been shown that…业已表明……
it must be pointed that…必须指出……
it must be admitted that 必须指出/承认,
it must be realized that 必须意识到
it is acknowledged that 应该承认……
it is announced that…据称……,有人宣称……
it is observed that… 值得注意的是……
it is arranged that…已经商定……
it is pointed out that…有人指出……
it is proposed that 有人提议…,一般认为……
it is regarded/thought that 人们认为……
it is considered that 人们认为…,据估计……
it is declared that…据宣称……,有人宣布
it is described that… 据说……,
it is expected that…人们希望……,预期……
it is generally accepted that通常人们认为……
it is believed/recognized that 普遍认为……
it is hoped that…人们希望……
it should be noted that 应该注意/指出。。。;it used to be said that 常言道……
it was noted above that 如上所述……
it will be said that 有人会说……
it will be seen from that 由此可见……
it is stated that据称;据说;有人说;一般认为
it is suggested that 有人提议;据建议
it is supposed that 据推测;假定;人们猜测
it is usually considered that 通常认为
it is well known that 大家都知道,众所周知
it is not settled whether 是否……还未决定
d) it + be + intransitive verb + that-clause
it seems that/as if 好像是……
it happens/happened that 碰巧……
it follows that 由此可见……
it matters that 要紧的是……
it occurs/occurred to sb that 某人想到……
it struck me that 我突然想到……
it appears to …that 在……看来似乎
it doesn't matter if/whether 即使……也无妨
it goes without saying that ……不言而喻
it is not until … that…直到……才……
it is up to somebody to do 该……做……
it remains to be proved that 尚待证明
it remains to be seen that 尚待分晓
it remains for sb to do 有待某人做……
it so fell out that 结果是,终于
it turned out that证明是,结果是
it is worth notice that 值得注意的是
it looks as if 看起来好像,似乎
it makes no difference that…都是一样,无区别
it is not just like sb to do 某人不会做……
it takes somebody something to do 某人花费……做……
九、习惯用法
it all depends=that depends 视情况而定
if it is convenient to you 如果你方面的话
believe it or not 信不信由你
take it easy 别着急,慢慢来,别紧张, as it is 但是实际上,其实
see (to it ) that 设法使,务必做到
what become of somebody/something 是……的结局,发生于
if it had not been for 若不是=but for
after what seemed +时间
it was not long before 不久就
cab it 乘车 brave it out 拼命干到底
walk it 步行 do/go it alone单q匹马的干
beat it =go away 滚
make it =succeed in doing 办成功
come it 尽自己的分内事come it strong 做的过分lord it over 欺压take it out of sb 拿某人出气have it out with sb 和某人讲个明白be hard put to it 在艰难之中
You're it 你下一个(用于儿童游戏中)
Is that it = Is that all you wanted me for 你要的就是这些吗?
十、 It's + adj + for/of somebody to do sth选择of 还是for,要根据形容词来决定,如果表示人的内在品质,后面引出的名词既是前面形容词的主语,也是动词不定式的逻辑主语,那么用of, 这类形容词有kind, brave, merciful, fine, cruel, selfish, stupid, clever, wise, unfair等;如果表示难易程度,可能性,等外在的特征,而且所引出的词只作后面动词不定式的主语,这类形容词有easy, difficult, hard, impossible, possible, convenient 等等。比如:
It is easy for you to make it
It is impossible for him to walk 30 miles within one minute
It is very kind of you to help me
It is wise of you to take his advice
十一、it 引起的容易混淆的时间句型
1、 it is/has been +段时间+since-clause 这个句型表示从since谓语动作发生以后到现在或过去所经过的一段时间,意思为:"自从……以来已经多久了",主句多采用一般现在时,从句用过去时,如果表示过去的情况,since 主句用一般过去时,从句用过去完成时,或主句用过去完成时,从句用一般过去时。要注意:since引导时间状语从句时,从句若使用终止性动词,则表示该时间是从现在算起的;若使用延续性的动词,则表示时间是从过去算起的。如:
It's five years since they got married(从现在算起) It's five years since they were married (从过去算起)
It is three years since his father passed away
2、 it be +段时间+before-clause ---这个句型中的时间是段时间(long years, months, weeks, days, hours, minutes),主句中的谓语动词用肯定式,意思为:"过多长时间才……"。主句谓语动词是否定式时,意思为:"没过多长时间就……"。主句的时态可用过去时was或将来时will be,用was时,before从句的时态用一般过去时,用will be时,从句常用一般现在时。如
It was not long before he learned those poems by heart她没过多久就会背那些诗了。
It was long before the police arrived
It will be hours before he makes a decision
It will not be hours before we meet again
3、 it be +点时间+when-clause这个句型中,it指时间,而且表示时间的词语前没有介词,时间为具体时间。主句中的谓语部分和从句中的谓语动词在时态上一般是一致的,主句是will be时,从句中用一般现在时替换将来时。如:It was already 8 o'clock we got there
It will be late afternoon when they get there
it be +时间+that-clause 此句型为强调句型
4、 it be +high/about 时间+that-clause 此句型是个虚拟语气句型,表示是该做……的时候了,此时无论主句中的be是什么时态,从句中的谓语动词一律用一般过去时或者should do,high和about是用以加强语气的。如:It is high time that we he went to school
It is time that we should make people's life a little better
6、It/This/That be the first(second/third…) time that-clause这个句型表示说话时为止某人的一种经历,关键是time前面的序数词,主句是is时,从句要用现在完成时,主句是一般过去时,从句要用过去完成时。
This is the first time (that) these Europeans have visited the Great Wall
It was the fifth time (that) I had paid a friendly visit to America
十二、下面的句型中用there而不用it。
There is something wrong with… ……有毛病
There is no doubt of/that 无疑……
There is no need for/to do 不需要做……
There is no denying 无可否认……
There is no hurry about 无需慌忙……
There is no difficulty in 在……方面没有困难
There is no help for ……没有办法
There is no deference between ……没有区别
There is no lack of 有很多的,不缺乏
There is no possibility of/that 没可能
There is no room for 没有……的余地
There is no sense in ……是没有意义的
There is no sign of 没有……的迹象
There is no saying that ……难以断言,很难说
There is a chance that/of 很可能
There is a possibility that/of有可能
There is a slim hope of ……有微小的希望
There is some difficulty in 在……有困难
There is some trouble in 在……有麻烦
There appears to be 似乎有
There seems to be似乎有,好像有
There used to be (过去)常常有,原来这里有
There was a time when从前曾经有一个时候
There is evidence that ……显然
There is no probability of/that很难有/会
IT是信息技术(Information Technology)的缩写,是主要用于管理和处理信息所采用的各种技术
的总称。
它主要是应用计算机科学和通信技术来设计、开发、安装和实施信息系统及应用软件。它也常被称
为信息和通信技术(Information and Communications
Technology, ICT)。主要包括传感技
术、计算机与智能技术、通信技术和控制技术。
主要是软件开发、软件销售、软件测试。
:
应用范围:信息技术的研究包括科学,技术,工程以及管理等学科,这些学科在信息的管理,传递
和处理中的应用,相关的软件和设备及其相互作用。
信息技术的应用包括计算机硬件和软件、网络和通讯技术、应用软件开发工具等。计算机和互联网
普及以来,人们日益普遍的使用计算机来生产、处理、交换和传播各种形式的信息(如书籍、商业
文件、报刊、唱片、**、电视节目、语音、图形、图像等)。
参考资料:
It的用法(专项总结)
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
1it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 A to B
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
3it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 well②It is necessary that he (should) remember these words
⑶It is said (reported/ learned/believed/thought/known/told/hoped) that 从句 常译为"据说(据报道,据悉...)"。
①It is said that he has come to Beijing ②It is reported that another earth satellite has been put into orbit
⑷It is suggested ( advised/ ordered / demanded/ insisted/ commanded ) that 从句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...)
①It is suggested that the meeting ( should ) be put off
②It was ordered that we ( should ) arrive there in two hours
⑸It is time ( about time ,high time ) that从句(虚拟语气:动词用过去时did)
① It is time that children went to bed
⑹It is the first ( second ) time that从句(从句用现在完成时 have done )
It was …(从句用过去完成时had done )常译为"是第一(二)...次..."。
It is the first time I have been here = This is the first time I have been here
⑺It is a pity ( a shame /an honour/a good thing/a fact,/a surprise/ ) that从句
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。
①It is a pity that such a thing ( should ) happen in your class 这种事竟然发生在你们班上,真是遗憾!
②It is a pity that he is ill 他生病了,真遗憾!
⑻It happens (seems, looks, appears ) that从句常译为 “ 碰巧…,似乎是…,看起来…”
①It happened ( so happened ) that he met his teacher in the street 碰巧..
②It seems that he will be back in a few days 看来...
2作形式主语替代不定式
⑴ It is kind ( of sb ) to do sth 不定式的逻辑主语是由 of引起,主句中的形容词必须是能表示逻辑主语特征的褒义或贬义形容词。 常见的词有:
bad , brave , careless, clever , cruel , foolish , good (好心的), honest , horrible , kind , lazy , modest , naughty , nice(有教养的), polite, rude , silly , stupid , wise , wrong(错误的)等。 这个句型可以改写为:sb is kind to do sth 。 如:It is kind of you to say so = You are kind to say so
⑵It is necessary ( for sb ) to do sth 不定式的逻辑主语是由for引起,主句中的形容词通常是表示重要性,紧迫性,频繁程度,难易,安全等情况的中性形容词。 常见的形容词有:
important, necessary, natural easy , safe , common , normal , hard , difficult , dangerous , unusual, rare , impossible , pleasant
如:It is important for her to come to the party = It is important that she (should ) come to the party
⑶It takes sb to do sth 常译为"做...要花费某人..."。
如:It took thousands of people many years to build the Great Wall
3作形式主语替代动名词短语
It is no good / no use / useless doing sth 常译为 “┅有好处或没有用”
①It is no good learning English without speaking English
②It's useless trying to argue with Shylock
五、作形式宾语,代替不定式,动名词短语或宾语从句。
We think it important to learn a foreign language
该句型中的it 作形式宾语,该结构中常用的动词有:think, believe, make ,find consider, feel; 如:
We think it our duty to clean our classroom every day
He felt it important learning English well
They found it difficult that they would finish their work in two days
The Internet makes it easier for companies to keep in touch with customers
CF: keep sth, in mind / keep in mind that
六、it的重要句型
1强调句型: It is/was + 被强调部分 + that 从句 (被强调的主语如果是人,that可以由who换用)
①It was about 600 years ago that the first clock with a face and an hour hand was made
②It was they that (who ) cleaned the classroom yesterday
特例:It is 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
it
it
[It; it]
代名词
1 [第三人称单数中性主格] 它,它
2 [第三人称单数中性受格]
a [直接受词] 它,它
I saw ~
我看到它
I gave it him
我把它给了他
b [间接受词] 它,它
I gave it food
我给它食物
c [介系词受词]
I gave food to it
我给它食物
3
Go and see who it is
去看看是谁
It's me (
口语)是我
It says, "Keep to the left"
它 [标示] 写著「靠左边走”
It says in the Bible that
圣经上说…
It says in the papers that
报纸上说…
4 a
It is impossible to master English in a month or two
要在一两个月内精通英文是不可能的
It will be difficult for him to come so early
要他来得那么早是有困难的
It's kind of you to give me a present
你真好,送我礼物
It is no use trying
试也白试
It isn't certain whether we shall succeed
我们是否会成功还很难说
It is strange that he says so
他这样说真奇怪
It is said that the universe is infinite
据说宇宙是无限的
b [作形式上的受词,以代表后述实际主词的不定词片语、动名词片语、that 子句等]
I make it a point to get up early
我强调要早起
They considered it impossible for us to attack during the night
他们认为我们不可能在夜间攻击
You will find it very nice taking a walk early in the morning
你会发现在清晨散步很好
I think it necessary that you (should) do it at once
我认为你必须立刻做那件事
I take it (that) you wish to marry her
我以为你想和她结婚
c
It is a nuisance, this delay
这样拖延真受不了
5 [作非人称动词 (impersonal verb) 的主词]
a [天气、气候的冷暖]
It is raining
正在下雨
It is getting hot
天气渐渐变热
It looks like snow
好像要下雪的样子
b [时间、日期]
It will soon be New Year
快要新年了
It is Friday (today)
今天是星期五
How long does it take from here to the park
从这里到公园要多久
It takes time to get used to new shoes
穿惯新鞋需要时间
c [距离]
It is 2 miles to the station
到车站 (距离) 有两哩
d [明暗]
How dark it is !
好暗啊, [事情、情况] !
How goes it with you today
你今天觉得怎样
Had it not been for you, what would I have done
要不是有你 (的帮助) ,我真不知该怎么办呢
f 作 seem [appear,happen,etc] that 的主词
It seems (that) he has failed
看来他已经失败了
It happened (that) he was not present
碰巧他没有出席
6(口语)
a [作某种动词无意义的形式上受词]
Let's walk it
我们走路去
Damn it (all)!
该死!糟了!
You'll catch it from your father
你会挨你父亲的骂
Give it (to) him!
教训他一顿!
→ Go it
b
If we miss the bus, we'll have to foot it
如果我们赶不上公共汽车,我们只好走路
cab it (
美)坐计程车去
lord it
→lord vt
king it
→ king vt
queen it
→queen vt 2
c [作介系词的无意义、形式上之受词]
I had a good time of it
我玩得很愉快
Let's make a night of it
让我们痛饮一晚吧
7 [在 "it is[was] that [who,whom,which,etc] "的句型中用以强调句子主词, (动词或介系词的) 受词,副词片语]
It is I that [who] am to blame
该受责备的是我
It is the price that frightens him
使他吓一跳的是那价钱
It was Franklin who wrote "God helps them that help themselves"
写“天助自助者”这句话的人是富兰克林
It was Mary (that) we saw
我们看到的是玛丽
It was peace that they fought for
他们作战为的是和平
It was in this year that the war broke out
战争就是在这一年爆发的
It was beer (that) you drank, not water = It was beer, not water, (that) you drank
你喝的是啤酒,不是水
have had it →have v
have what it takes →what pron
If it had not been for →if
If it were not for → if
it
[It; it]
《Italian vermouth 之略》
不可数名词
(英口语)! (甜味的) 义大利的苦艾酒
gin and it
杜松子酒与甜苦艾酒的混合酒
it
[It; it]
《it 的转借》
不可数名词
1 ! (捉迷藏等游戏的) 鬼
2 (口语)
a 极致,理想 (the ideal)
In that blue dress she was ~
她穿上那件蓝色衣服美极了
As a Christmas gift, this is really it
当作耶诞礼物,这是最理想的东西
b 重要人物,第一号人物,头号人物
Among physicists he is it
在物理学家中他是佼佼者
3 (俚)性的魅力,性感 (sex appeal)
That's it
(1) (问题) 就在那里
(2)就像那样,那样就可以
That's it for today
今天到此为止 (就此结束)
(3)那样就结束,那就是全部
This is it
(口语)终于到了时候 [紧要关头] ; 果然不出所料
with it
(1)不落伍的,时髦的,现代化的
(2)领悟力强的; 精明的,机警的; 知内情的
get with it
赶上时代,顺应新潮流; 警觉,留神
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