2024屆高三英語一輪復習課件（安徽用）考點14 It的用法
Part2 考點14 考點14
It的用法 1.主要考查的知識點： (1)it作形式主語、賓語 (2)it強調(diào)句的結(jié)構(gòu) (3)it的其他固定用法 2.復習重點： (1)it作形式主語、賓語的用法 (2)it用于強調(diào)句的用法 (3)it的固定句型 1. it作人稱代詞的用法 (1) It's a tree.
(2) I have a new bike. It (＝ The bike) was given to me as my birthday present by my parents.
(3)— Who is it knocking at the door? — It must be Leo. He said he'd come to see me. (4) It is spring now and it's warm these days. (5) It's time that we should clean the house. ＝It's time that we cleaned the house. 1. it作人稱代詞的用法 (6) It is three years since I became a doctor.
我當醫(yī)生已經(jīng)3年了。
(7) It is three years since he was a doctor.
他不當醫(yī)生已經(jīng)3年了。 (8)It is the second time that she has visited the Great Wall. 1. it作人稱代詞的用法 (9)It was evening when we got home. ＝It was evening in which we got home. (10) It was five years before they finally graduated from Beijing University.
過了5年他們才從北大畢業(yè)。 (11) It won't be long before we graduate from our school.
不久，我們就要從學校畢業(yè)了。 1. 指代除了人以外的一切事物，如：(1)。 2. 指代上文提過的事物，相當于“the ＋ 名詞(單數(shù))”或替代上文的this / that，意指同類同物，如：(2)。 3. 指代人時，常指小孩或身份不明的人，如：(3)。 4. 指代時間、季節(jié)、天氣、溫度、距離、環(huán)境、情況等自然現(xiàn)象，如：(4)。 【注意】
it指代時間的句型有： (1)It is time for sth. / (for sb.) to do sth. / that-從句(should do/ did，必須用虛擬語氣)，如：(5)。 (2)It is /has been ＋ some time ＋ since-從句 (從句用一般過去時)
此句型中，若從句的謂語為非持續(xù)性動詞，句意為“自從……以來已有多長時間了”；若從句的謂語為持續(xù)性動詞，句意為“有多長時間沒有做……了”，如：(6)、(7)。 (3)It / This is the first /second…time that-從句(必須使用現(xiàn)在完成時)句意為“某人第……次做了某事”，如：(8)。 (4)It was ＋時間點 ＋ when-從句，句意為“當……時，已經(jīng)是……時間了”，如：(9)。 (5)It was / will be ＋ some time ＋ before-從句，句意為“過了……時間才……”；其否定句It wasn't / won't be ＋ some time ＋ before-從句，句意為“沒過……時間就……”，如：(10)、(11)。 2．it作非人稱代詞的用法 (1) It is good for you to take part in social activities. (2) It looks as if he is ill.
(3) It happened that Mary was there too. (4) It seems that he is right.
(5) How did it come about that so many people were attacked? (6) Mobile phones make it possible for us to keep in touch anywhere. 2．it作非人稱代詞的用法 (7) I consider it no good chatting with strangers through the Internet. (8) I really find it a pity that you didn't come to the party. (9) I hate it when people speak with their mouths full. (10) I really appreciate it if you could help me with my math. (11) You can depend upon it that we won't give up. (12) It was Edison who invented the lamp. 2．it作非人稱代詞的用法 (13) It is I that am going to be sent there. (14) He didn't go to bed until_he_finished_his_homework. → It wasn't until he finished his homework that he went to bed.
(15) It was because he got there late that we didn't catch the first bus.
(16) Was it not until he finished his homework that he went to bed? (17)When was it that he went to bed? 1．it 作形式主語
當不定式、動名詞短語或從句作主語時，為平衡句子，通常用it 作形式主語，而將真正的主語移到句子的末尾，如：(1)。
用于某些固定句型中： ①It looks / sounds as if-從句，句意為“看起來好像……；聽起來好像……”，如：(2)。 ② It happens that-從句，句意為“碰巧……”，如：(3)。 ③ It appears / seems that-從句，句意為“看來…”，如：(4)。 ④ How did it come about that-從句，句意為“……怎么發(fā)生的？”，如：(5)。 ⑤ It is no good/use doing sth. 句型，句意為：“……沒有用。” ⑥ It doesn't matter/ makes no difference ＋ 特殊疑問詞/whether / if -從句。 ⑦ It turned out that-從句，意為“結(jié)果是……，證明是……”。 ⑧ It occurred to / hit sb.that-從句，意為“某人突然想到了……”。 ⑨ It is no/little wonder that-從句，意為“難怪……”。 2．it 作形式賓語
當不定式、動名詞短語或從句作賓語時，有些情況須用it 作形式賓語。 ① think / consider / find / feel / make / believe / regard ＋ it ＋ adj./n. (for sb.) ＋ to do，如：(6)。 ② think / consider / find / feel ＋it＋ no good / use doing sth.，如：(7)。 ③ believe / imagine / think / consider / find / feel / (make) / regard / ＋it＋ adj. / n. ＋ that-從句，如：(8)。 ④ hate / dislike / love / like ＋it ＋ when-從句，如：(9)。 ⑤ appreciate ＋ it＋ if-從句，如：(10)。 ⑥ see to/ answer for it＋ that-從句；depend on it ＋that-從句，如：(11)。 3．it引導強調(diào)句型
強調(diào)句結(jié)構(gòu)
“It is / was ＋ 被強調(diào)部分 ＋ that / who ＋ 句子的其余部分”。
It是引導詞，被強調(diào)部分可以是句子的主語、賓語、狀語。如果被強調(diào)的部分是人，that 可用who代替，其他情況一律用that；原句中用的是過去的某種時態(tài)， 用it was…that/who…，原句中用的是現(xiàn)在或?qū)淼哪撤N時態(tài)，用it is…that，如：(12)。
【注意】 ① 強調(diào)句中的被強調(diào)部分不能是定語或謂語。 ② 在強調(diào)句型中，當強調(diào)主語時，that后面的謂語動詞須與that前面的主語一致，如：(13)。 ③ 在not…until…結(jié)構(gòu)中，若強調(diào)until部分時，not 要提前到until前，until后面的部分一起被強調(diào)，即：It wasn't until…that ＋句子的其余部分，如：(14)。 ④ 當強調(diào)原因時，只能強調(diào)because引導的原因狀語從句，而as, since, for等連接原因不能被強調(diào)，如：(15)。 ⑤ 強調(diào)句的一般疑問句形式：Is/Was it ＋ 被強調(diào)部分 ＋ that ＋ 句子的其余部分，如：(16)。 ⑥ 強調(diào)句的特殊疑問句形式：特殊疑問詞＋ is/was it＋ that ＋ 句子的其余部分，如：(17)。 4．it 的一些習慣用法 ① (You've/I've) Got it. 懂了，明白了。 ② Forget it 算了吧，別在意，沒關系。 ③ Take it easy. 別著急，慢慢來；別過于緊張。 ④ make it 辦得到，做成功 ⑤ make it ＋時間 把……定在(某時) ⑥ It / That (all) depends. 那要看情況而定。 ⑦ It can't be helped. 沒有辦法/這是不可避免的。 ⑧ It is hard to say. 情況很難說。 ⑨ It comes to nothing. 沒有什么結(jié)果。 ⑩ Don't mention it. 不用謝。 ? That's it. 對了；正是。 ? catch it (口語) 被責罵； 受處罰 ? Believe it or not. 信不信由你。 ? It doesn't matter. 沒有關系； 不要緊。 ? When it comes to …當談到……； 當涉及到…… ? keep it up 再接再厲 5. it, one, ones, that和those的區(qū)別
it指的是同名同物，相當于the＋名詞；
one 指的是同名異物，表示單數(shù)可數(shù)名詞相當于a ＋名詞；用作a/an＋形容詞＋one，等于a/an＋形容詞＋名詞；復數(shù)形式用ones；
that后面常有后置定語，有特指意義，代替不可數(shù)名詞或單數(shù)可數(shù)名詞，相當于the＋名詞；
復數(shù)名詞用those，相當于the ones。
Part2 考點14 考點14
It的用法 1.主要考查的知識點： (1)it作形式主語、賓語 (2)it強調(diào)句的結(jié)構(gòu) (3)it的其他固定用法 2.復習重點： (1)it作形式主語、賓語的用法 (2)it用于強調(diào)句的用法 (3)it的固定句型 1. it作人稱代詞的用法 (1) It's a tree.
(2) I have a new bike. It (＝ The bike) was given to me as my birthday present by my parents.
(3)— Who is it knocking at the door? — It must be Leo. He said he'd come to see me. (4) It is spring now and it's warm these days. (5) It's time that we should clean the house. ＝It's time that we cleaned the house. 1. it作人稱代詞的用法 (6) It is three years since I became a doctor.
我當醫(yī)生已經(jīng)3年了。
(7) It is three years since he was a doctor.
他不當醫(yī)生已經(jīng)3年了。 (8)It is the second time that she has visited the Great Wall. 1. it作人稱代詞的用法 (9)It was evening when we got home. ＝It was evening in which we got home. (10) It was five years before they finally graduated from Beijing University.
過了5年他們才從北大畢業(yè)。 (11) It won't be long before we graduate from our school.
不久，我們就要從學校畢業(yè)了。 1. 指代除了人以外的一切事物，如：(1)。 2. 指代上文提過的事物，相當于“the ＋ 名詞(單數(shù))”或替代上文的this / that，意指同類同物，如：(2)。 3. 指代人時，常指小孩或身份不明的人，如：(3)。 4. 指代時間、季節(jié)、天氣、溫度、距離、環(huán)境、情況等自然現(xiàn)象，如：(4)。 【注意】
it指代時間的句型有： (1)It is time for sth. / (for sb.) to do sth. / that-從句(should do/ did，必須用虛擬語氣)，如：(5)。 (2)It is /has been ＋ some time ＋ since-從句 (從句用一般過去時)
此句型中，若從句的謂語為非持續(xù)性動詞，句意為“自從……以來已有多長時間了”；若從句的謂語為持續(xù)性動詞，句意為“有多長時間沒有做……了”，如：(6)、(7)。 (3)It / This is the first /second…time that-從句(必須使用現(xiàn)在完成時)句意為“某人第……次做了某事”，如：(8)。 (4)It was ＋時間點 ＋ when-從句，句意為“當……時，已經(jīng)是……時間了”，如：(9)。 (5)It was / will be ＋ some time ＋ before-從句，句意為“過了……時間才……”；其否定句It wasn't / won't be ＋ some time ＋ before-從句，句意為“沒過……時間就……”，如：(10)、(11)。 2．it作非人稱代詞的用法 (1) It is good for you to take part in social activities. (2) It looks as if he is ill.
(3) It happened that Mary was there too. (4) It seems that he is right.
(5) How did it come about that so many people were attacked? (6) Mobile phones make it possible for us to keep in touch anywhere. 2．it作非人稱代詞的用法 (7) I consider it no good chatting with strangers through the Internet. (8) I really find it a pity that you didn't come to the party. (9) I hate it when people speak with their mouths full. (10) I really appreciate it if you could help me with my math. (11) You can depend upon it that we won't give up. (12) It was Edison who invented the lamp. 2．it作非人稱代詞的用法 (13) It is I that am going to be sent there. (14) He didn't go to bed until_he_finished_his_homework. → It wasn't until he finished his homework that he went to bed.
(15) It was because he got there late that we didn't catch the first bus.
(16) Was it not until he finished his homework that he went to bed? (17)When was it that he went to bed? 1．it 作形式主語
當不定式、動名詞短語或從句作主語時，為平衡句子，通常用it 作形式主語，而將真正的主語移到句子的末尾，如：(1)。
用于某些固定句型中： ①It looks / sounds as if-從句，句意為“看起來好像……；聽起來好像……”，如：(2)。 ② It happens that-從句，句意為“碰巧……”，如：(3)。 ③ It appears / seems that-從句，句意為“看來…”，如：(4)。 ④ How did it come about that-從句，句意為“……怎么發(fā)生的？”，如：(5)。 ⑤ It is no good/use doing sth. 句型，句意為：“……沒有用。” ⑥ It doesn't matter/ makes no difference ＋ 特殊疑問詞/whether / if -從句。 ⑦ It turned out that-從句，意為“結(jié)果是……，證明是……”。 ⑧ It occurred to / hit sb.that-從句，意為“某人突然想到了……”。 ⑨ It is no/little wonder that-從句，意為“難怪……”。 2．it 作形式賓語
當不定式、動名詞短語或從句作賓語時，有些情況須用it 作形式賓語。 ① think / consider / find / feel / make / believe / regard ＋ it ＋ adj./n. (for sb.) ＋ to do，如：(6)。 ② think / consider / find / feel ＋it＋ no good / use doing sth.，如：(7)。 ③ believe / imagine / think / consider / find / feel / (make) / regard / ＋it＋ adj. / n. ＋ that-從句，如：(8)。 ④ hate / dislike / love / like ＋it ＋ when-從句，如：(9)。 ⑤ appreciate ＋ it＋ if-從句，如：(10)。 ⑥ see to/ answer for it＋ that-從句；depend on it ＋that-從句，如：(11)。 3．it引導強調(diào)句型
強調(diào)句結(jié)構(gòu)
“It is / was ＋ 被強調(diào)部分 ＋ that / who ＋ 句子的其余部分”。
It是引導詞，被強調(diào)部分可以是句子的主語、賓語、狀語。如果被強調(diào)的部分是人，that 可用who代替，其他情況一律用that；原句中用的是過去的某種時態(tài)， 用it was…that/who…，原句中用的是現(xiàn)在或?qū)淼哪撤N時態(tài)，用it is…that，如：(12)。
【注意】 ① 強調(diào)句中的被強調(diào)部分不能是定語或謂語。 ② 在強調(diào)句型中，當強調(diào)主語時，that后面的謂語動詞須與that前面的主語一致，如：(13)。 ③ 在not…until…結(jié)構(gòu)中，若強調(diào)until部分時，not 要提前到until前，until后面的部分一起被強調(diào)，即：It wasn't until…that ＋句子的其余部分，如：(14)。 ④ 當強調(diào)原因時，只能強調(diào)because引導的原因狀語從句，而as, since, for等連接原因不能被強調(diào)，如：(15)。 ⑤ 強調(diào)句的一般疑問句形式：Is/Was it ＋ 被強調(diào)部分 ＋ that ＋ 句子的其余部分，如：(16)。 ⑥ 強調(diào)句的特殊疑問句形式：特殊疑問詞＋ is/was it＋ that ＋ 句子的其余部分，如：(17)。 4．it 的一些習慣用法 ① (You've/I've) Got it. 懂了，明白了。 ② Forget it 算了吧，別在意，沒關系。 ③ Take it easy. 別著急，慢慢來；別過于緊張。 ④ make it 辦得到，做成功 ⑤ make it ＋時間 把……定在(某時) ⑥ It / That (all) depends. 那要看情況而定。 ⑦ It can't be helped. 沒有辦法/這是不可避免的。 ⑧ It is hard to say. 情況很難說。 ⑨ It comes to nothing. 沒有什么結(jié)果。 ⑩ Don't mention it. 不用謝。 ? That's it. 對了；正是。 ? catch it (口語) 被責罵； 受處罰 ? Believe it or not. 信不信由你。 ? It doesn't matter. 沒有關系； 不要緊。 ? When it comes to …當談到……； 當涉及到…… ? keep it up 再接再厲 5. it, one, ones, that和those的區(qū)別
it指的是同名同物，相當于the＋名詞；
one 指的是同名異物，表示單數(shù)可數(shù)名詞相當于a ＋名詞；用作a/an＋形容詞＋one，等于a/an＋形容詞＋名詞；復數(shù)形式用ones；
that后面常有后置定語，有特指意義，代替不可數(shù)名詞或單數(shù)可數(shù)名詞，相當于the＋名詞；
復數(shù)名詞用those，相當于the ones。
