2024届高三英语复习：it的用法课件(共12张PPT)
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| 名称 | 2024届高三英语复习：it的用法课件(共12张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 137.8KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 通用版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-08-08 08:16:55 | ||
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(共12张PPT)
it 的用法
it 的用法
代词it常用来指代前文提到的事或物，还用在各种特殊句型中。
1. it用作形式主语
（1）It + be + adj. + 主语从句
It is clear（obvious / true / possible / certain…）+ that / whether…从句…
It is essential（important / necessary / right / strange / natural…）+ that从句…（should + 动词原形）
It is uncertain whether he can come to Jenny’s birthday party or not.
It is important that we should learn English well.
it 的用法
代词it常用来指代前文提到的事或物，还用在各种特殊句型中。
（2）It + be + 名词词组 + 主语从句
It’s a pity that you missed the exciting football match.
（3）It + 不及物动词（seem / appear / happen / turn out…等）+ 主语从句 （看来 / 似乎 / 碰巧 / 证明是）
It seemed that he didn’t tell the truth.
It happened that I was out when he called.
it 的用法
（4）It’s + adj. + for / of + sb. + to do sth
特别注意：如何选择介词for 或of？
如果该句型中的形容词是用来说明“某人”的性格或品质（如kind, good, nice, wise, stupid, clever, foolish, silly, impolite, selfish, considerate ...）时，介词用of（“某人”和这些形容词可以构成主系表结构），其它情况介词用for。
It + be + adj. (easy / difficult / hard / important / possible / necessary...) + for sb + to do sth
It + be + adj. (kind / nice / clever / stupid / foolish / silly / impolite / selfish / considerate ...) + of sb + to do / have done sth.
It is unwise of you to give children whatever they want. 孩子需要什么你就给什么是不明智的。
It is necessary for you to turn to your teachers when in trouble.
你遇到困难时求助老师是必要的。
it 的用法
（5）It + be + n. & adj. (no good / no use / useless / senseless / a waste of time (money) /…) + v.-ing
It is no use arguing about the matter with him.
和他争论这件事没有用。
（6）It + took / will take (sb) + 时间（或金钱）+ to do sth.
It took the workers almost three years to finish building the dam.
工人们花了将近三年的时间才把大坝建成。
it 的用法
2. it用作形式宾语
主语 + find / make / consider / feel / think / believe / imagine / regard / suppose… + it（形式宾语）+ adj.& n. + to do sth.或句子（真正宾语）
Remembering more words and expressions, you will find it easier to read and communicate. =
Remember more words and expressions, and you will find it easier to read and communicate.
记住更多的单词和表达方式，你会发现阅读和交流更容易。
it 的用法
3. it在特定句型中的运用
（1）It (never) occurred to / came to / hit / struck sb. that… 某人（从没）想到…
It never occurred to me that you could succeed in persuading（说服） him to change his mind.
（2）It is / has been + 时间段 + since从句 (过去时态) … 自从…以来有…久了
It is / has been two weeks since you came to our school for the exchange program, which has benefited all of us.
（3）It is the first / second / last time that + sb. has / have done sth. 是某人第…次做某事
It was the first / second / last time that + sb. had done sth. 是某人第…次做某事
Unfortunately he didn’t win this year. It was the second time that he had been nominated（提名）, but gone home empty-handed.
it 的用法
3. it在特定句型中的运用
（4）It was / took + 一段时间 + before从句（过了…时间才…）
It will be / will take + 一段时间 + before从句（要过…时间才…）
It wasn’t / didn’t take + 一段时间 + before从句（没过…时间就…）
It won’t be / won’t take + 一段时间 + before 从句（过不了…时间就…）
After that it still took seven years before they got married.
I’m sorry to have kept you waiting, but it’ll still be some time before Brian gets back.
It didn’t take long before new trouble arose.
It won’t be long before we meet again.
it 的用法
3. it在特定句型中的运用
（5）It’s (high / about) time that + sb. did sth. / should do (should不可省)（是…的时候了）
The final examination is coming soon, it’s about time that we got down to/should get down to our studies.
（6）It is suggested / required / ordered / insisted/… that sb. should do sth（据建议 / 有命令…）
It was ordered that we (should) arrive there in two hours.
（7）It is…when从句（当某事发生时，时间是在…）
It was 10 o’clock when they arrived at the village.
注意: when引导的是一个时间状语从句，主句中的it指时间。
it 的用法
3. it在特定句型中的运用
（8）主语 + make + it + a rule + to do / that从句 （定规矩；习惯于）
主语 + make + it + clear + that从句（明确表示；阐明）
I made it a rule to recite five sentences each day.我把每天背诵五句话定为一条规则。
He made it clear that he totally agreed with what I said.他明确表示完全同意我所说的话。
（9）It is said / reported / learned / assumed / announced /…that从句… =
sb. / sth. is said / reported / learned / assumed / announced /… to do /to have done （据说 / 报道 / 了解 / 推测 / 宣称…）
（10）It looks / seems / appears / sounds as if 从句 （看起来好像…；听起来好像…）
注意：as if引导一个状语从句，如果与事实不相符合，则用虚拟语气。
it 的用法
3. it在特定句型中的运用
（11）It remains to be seen whether / when /…从句 （有待证实）
（12）hate / dislike + it + when / if 从句（讨厌…）
（13）appreciate + it + if 从句（假如…，将不胜感激）
（14）see to / answer for / depend on / insist on it + that 从句（确保 / 对…负责 / 指望 / 坚持）
（15）How did it come about that + 从句（…怎么发生的？）
it 的用法
3. it在特定句型中的运用
（16）It doesn’t matter / makes no difference + 特殊疑问词 + 从句（不论…都没关系）
（17）(It is) no wonder (that) + 从句（难怪…）
（18）took it for granted that + 从句（把…当做理所当然）
it 的用法
it 的用法
代词it常用来指代前文提到的事或物，还用在各种特殊句型中。
1. it用作形式主语
（1）It + be + adj. + 主语从句
It is clear（obvious / true / possible / certain…）+ that / whether…从句…
It is essential（important / necessary / right / strange / natural…）+ that从句…（should + 动词原形）
It is uncertain whether he can come to Jenny’s birthday party or not.
It is important that we should learn English well.
it 的用法
代词it常用来指代前文提到的事或物，还用在各种特殊句型中。
（2）It + be + 名词词组 + 主语从句
It’s a pity that you missed the exciting football match.
（3）It + 不及物动词（seem / appear / happen / turn out…等）+ 主语从句 （看来 / 似乎 / 碰巧 / 证明是）
It seemed that he didn’t tell the truth.
It happened that I was out when he called.
it 的用法
（4）It’s + adj. + for / of + sb. + to do sth
特别注意：如何选择介词for 或of？
如果该句型中的形容词是用来说明“某人”的性格或品质（如kind, good, nice, wise, stupid, clever, foolish, silly, impolite, selfish, considerate ...）时，介词用of（“某人”和这些形容词可以构成主系表结构），其它情况介词用for。
It + be + adj. (easy / difficult / hard / important / possible / necessary...) + for sb + to do sth
It + be + adj. (kind / nice / clever / stupid / foolish / silly / impolite / selfish / considerate ...) + of sb + to do / have done sth.
It is unwise of you to give children whatever they want. 孩子需要什么你就给什么是不明智的。
It is necessary for you to turn to your teachers when in trouble.
你遇到困难时求助老师是必要的。
it 的用法
（5）It + be + n. & adj. (no good / no use / useless / senseless / a waste of time (money) /…) + v.-ing
It is no use arguing about the matter with him.
和他争论这件事没有用。
（6）It + took / will take (sb) + 时间（或金钱）+ to do sth.
It took the workers almost three years to finish building the dam.
工人们花了将近三年的时间才把大坝建成。
it 的用法
2. it用作形式宾语
主语 + find / make / consider / feel / think / believe / imagine / regard / suppose… + it（形式宾语）+ adj.& n. + to do sth.或句子（真正宾语）
Remembering more words and expressions, you will find it easier to read and communicate. =
Remember more words and expressions, and you will find it easier to read and communicate.
记住更多的单词和表达方式，你会发现阅读和交流更容易。
it 的用法
3. it在特定句型中的运用
（1）It (never) occurred to / came to / hit / struck sb. that… 某人（从没）想到…
It never occurred to me that you could succeed in persuading（说服） him to change his mind.
（2）It is / has been + 时间段 + since从句 (过去时态) … 自从…以来有…久了
It is / has been two weeks since you came to our school for the exchange program, which has benefited all of us.
（3）It is the first / second / last time that + sb. has / have done sth. 是某人第…次做某事
It was the first / second / last time that + sb. had done sth. 是某人第…次做某事
Unfortunately he didn’t win this year. It was the second time that he had been nominated（提名）, but gone home empty-handed.
it 的用法
3. it在特定句型中的运用
（4）It was / took + 一段时间 + before从句（过了…时间才…）
It will be / will take + 一段时间 + before从句（要过…时间才…）
It wasn’t / didn’t take + 一段时间 + before从句（没过…时间就…）
It won’t be / won’t take + 一段时间 + before 从句（过不了…时间就…）
After that it still took seven years before they got married.
I’m sorry to have kept you waiting, but it’ll still be some time before Brian gets back.
It didn’t take long before new trouble arose.
It won’t be long before we meet again.
it 的用法
3. it在特定句型中的运用
（5）It’s (high / about) time that + sb. did sth. / should do (should不可省)（是…的时候了）
The final examination is coming soon, it’s about time that we got down to/should get down to our studies.
（6）It is suggested / required / ordered / insisted/… that sb. should do sth（据建议 / 有命令…）
It was ordered that we (should) arrive there in two hours.
（7）It is…when从句（当某事发生时，时间是在…）
It was 10 o’clock when they arrived at the village.
注意: when引导的是一个时间状语从句，主句中的it指时间。
it 的用法
3. it在特定句型中的运用
（8）主语 + make + it + a rule + to do / that从句 （定规矩；习惯于）
主语 + make + it + clear + that从句（明确表示；阐明）
I made it a rule to recite five sentences each day.我把每天背诵五句话定为一条规则。
He made it clear that he totally agreed with what I said.他明确表示完全同意我所说的话。
（9）It is said / reported / learned / assumed / announced /…that从句… =
sb. / sth. is said / reported / learned / assumed / announced /… to do /to have done （据说 / 报道 / 了解 / 推测 / 宣称…）
（10）It looks / seems / appears / sounds as if 从句 （看起来好像…；听起来好像…）
注意：as if引导一个状语从句，如果与事实不相符合，则用虚拟语气。
it 的用法
3. it在特定句型中的运用
（11）It remains to be seen whether / when /…从句 （有待证实）
（12）hate / dislike + it + when / if 从句（讨厌…）
（13）appreciate + it + if 从句（假如…，将不胜感激）
（14）see to / answer for / depend on / insist on it + that 从句（确保 / 对…负责 / 指望 / 坚持）
（15）How did it come about that + 从句（…怎么发生的？）
it 的用法
3. it在特定句型中的运用
（16）It doesn’t matter / makes no difference + 特殊疑问词 + 从句（不论…都没关系）
（17）(It is) no wonder (that) + 从句（难怪…）
（18）took it for granted that + 从句（把…当做理所当然）