高中英語語法-“It”用法及其句型和固定搭配講解
It用法及其句型和固定搭配講解(2)
三、It作主語的句型
1. It takes sb. to do（=sb takesto do）某人用多長時間做某事
例 It took the men a week to mend our roof.（= The men took a week to mend our roof.）
2. It's（just）（un）like sb. to do（不）像某人做某事的風格
例 It was（just）like him to think of helping us.
3. It's（about/high）time that should /v-ed是該做某事的時候了
例 It's（about/high）time that we should take action.
4. It's the x-th time（that） have v-ed第幾次做某事了
例 It's the third time that he has failed the driving test.
5. It is/has been since continuous v-ed（延續性動詞）某動作已有多長時間不發生了
例 It's 10 years that he lived here
6. It was（not） before過（不）了多長時間某動作發生了
例 It was not long before they arrived.
四、It 作形式賓語
用來替代作賓語的從句、動詞不定式、動名詞，而把真正作賓語的從句、動詞不定式、動名詞置于句尾。
It 作形式賓語的常見句型：
1. verb+ it+ adj./noun（for/of）to do/clause （verb=think，believe，suppose，consider，feel，make，keep）
例 I think it hard for you to do the task on your own./I think it hard that you'll do the task on your own.
2. verb+it+adj./noun（one's）doing（adj.=useless/worth/worthwhile）（noun=no use/no good/worth one's while/a waste of time/money/energy/words）（verb=think，believe，suppose，consider，feel，make，keep）
例 I'll make it worth your while telling me about his secret.
3. verb+it+ important/unimportant/necessary/unnecessary/natural/essential that （should）
verb+it+of much/great/no/little importance that（should）
（verb=think，believe，suppose，consider，feel，make，keep）
例 I think it important that you（should）attendthe conference.
4. verb + it+ as+ noun/adj.+ clause（verb=accept，regard，take，see，view）
例 The lecturer takes it as encouraging when so many students attend his lecture.
5. v. +it + prep. + that
owe it to sb. that把歸功于
leave it to sb that把留給某人去做
take it for granted that 想當然
keep it in mind that
例 Don't bother to arrange anything. Just leave it to me to sort out.
6. It用在不能直接跟賓語從句的動詞后面，尤其是表示好惡的動詞后，enjoy，like，love，dislike，resent，hate，don't mind，be fond of，feel like，see to 賓語從句緊跟it之后
例 I hate it you can swim so well and I can't.
7. It用在不能直接跟賓語從句的介詞后面，賓語從句緊跟it之后（except that例外）
例 I'm for it that you will follow their advice.
五、強調句型
It is/was+被強調部分+ that（who） 強調句型用來強調謂語動詞以外的任何句子成分。當被強調部分是人時也可以用who.
在使用強調句型時需注意以下幾點：
1. 請注意強調句型的特殊疑問句
例 When was it that he changed his mind to take part in the activity？
2. 在強調原因狀語從句時，只能強調由because所引導的從句
例 It was because he was ill that he didn't come to school yesterday.
3. 在強調not until結構時必須把not與until一起放到被強調的位置上
例 It was not until she took off her dark glasses that I realized she was my brother.
4. 注意強調句型與定語從句的區別
例 It was at 7 o'clock that he came here yesterday.（ 強調句型）
It was 7 o'clock when he came here yesterday.（定語從句）[1][2][3]
It用法及其句型和固定搭配講解(2)
三、It作主語的句型
1. It takes sb. to do（=sb takesto do）某人用多長時間做某事
例 It took the men a week to mend our roof.（= The men took a week to mend our roof.）
2. It's（just）（un）like sb. to do（不）像某人做某事的風格
例 It was（just）like him to think of helping us.
3. It's（about/high）time that should /v-ed是該做某事的時候了
例 It's（about/high）time that we should take action.
4. It's the x-th time（that） have v-ed第幾次做某事了
例 It's the third time that he has failed the driving test.
5. It is/has been since continuous v-ed（延續性動詞）某動作已有多長時間不發生了
例 It's 10 years that he lived here
6. It was（not） before過（不）了多長時間某動作發生了
例 It was not long before they arrived.
四、It 作形式賓語
用來替代作賓語的從句、動詞不定式、動名詞，而把真正作賓語的從句、動詞不定式、動名詞置于句尾。
It 作形式賓語的常見句型：
1. verb+ it+ adj./noun（for/of）to do/clause （verb=think，believe，suppose，consider，feel，make，keep）
例 I think it hard for you to do the task on your own./I think it hard that you'll do the task on your own.
2. verb+it+adj./noun（one's）doing（adj.=useless/worth/worthwhile）（noun=no use/no good/worth one's while/a waste of time/money/energy/words）（verb=think，believe，suppose，consider，feel，make，keep）
例 I'll make it worth your while telling me about his secret.
3. verb+it+ important/unimportant/necessary/unnecessary/natural/essential that （should）
verb+it+of much/great/no/little importance that（should）
（verb=think，believe，suppose，consider，feel，make，keep）
例 I think it important that you（should）attendthe conference.
4. verb + it+ as+ noun/adj.+ clause（verb=accept，regard，take，see，view）
例 The lecturer takes it as encouraging when so many students attend his lecture.
5. v. +it + prep. + that
owe it to sb. that把歸功于
leave it to sb that把留給某人去做
take it for granted that 想當然
keep it in mind that
例 Don't bother to arrange anything. Just leave it to me to sort out.
6. It用在不能直接跟賓語從句的動詞后面，尤其是表示好惡的動詞后，enjoy，like，love，dislike，resent，hate，don't mind，be fond of，feel like，see to 賓語從句緊跟it之后
例 I hate it you can swim so well and I can't.
7. It用在不能直接跟賓語從句的介詞后面，賓語從句緊跟it之后（except that例外）
例 I'm for it that you will follow their advice.
五、強調句型
It is/was+被強調部分+ that（who） 強調句型用來強調謂語動詞以外的任何句子成分。當被強調部分是人時也可以用who.
在使用強調句型時需注意以下幾點：
1. 請注意強調句型的特殊疑問句
例 When was it that he changed his mind to take part in the activity？
2. 在強調原因狀語從句時，只能強調由because所引導的從句
例 It was because he was ill that he didn't come to school yesterday.
3. 在強調not until結構時必須把not與until一起放到被強調的位置上
例 It was not until she took off her dark glasses that I realized she was my brother.
4. 注意強調句型與定語從句的區別
例 It was at 7 o'clock that he came here yesterday.（ 強調句型）
It was 7 o'clock when he came here yesterday.（定語從句）[1][2][3]
