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if主过从过例句
if
引导的从句怎么用?
答:
1.
If I had got there earlier,I should/could have met her.
如果我早到那儿,我就会见到她。(事实:去晚了)2.If he had taken my advice,he would not have made such a mistake. 如果他听我的劝告的话,就不会犯这样的错误了。(事实:没有听我的话)3.she looked at me as ...
用
IF
分别造4句主将从现,4句
主过从过
的句子
答:
If
he got up ealier, he would not be late.
if
虚拟语气的用法归纳
答:
(3)if主语:did(动词过去式)/were。3、例句:(1)
If he should come here tomorrow,I would talk to him.如果他明天来这儿的话
,我就跟他谈谈。(事实:来的可能性很小)。(2)If there were a heavy snow next Sunday,we would not go skating.如果下周日下大雪,我们就不能去滑冰了。
when,
if
用作
主过从过
的情况
答:
看例子就明白了,when he came, the film had been over. We didn't know
if
he had finished his homework. When引导时间状语从句,if 引导宾语从句
怎样理解
主过从过
?主句用过去将来时,从句用一般过去时。能多举几个例...
答:
即从句用一般过去式,主句用过去将来时,
if it should rain tomorrow,we would not go out ;if we were to have some days off
,we would go out for a trip 其实这类句子,就是表示与将来事实相反,大多数都是虚拟语气,所以建议多看看虚拟语气的语法,也是高考重要考点。
if
引导的从句有哪些形式?
答:
(1)
If
+ 主语 + 动词过去式 (be的过去式用were). 通常要与一个表示将来的时间状语连用. (2)If+主语(任何人称和数)+should+动词原形 (3)
if
+主语(任何人称和数)+were to+动词原形 I (we)should+动词原形 主语+would (might, could)+动词原形
例句
:·If it rained tomorrow, our ...
虚拟语气
if
的三种用法
答:
1、从句:If+主语+动词一般过去时(Be动词用were)。2、主句:主语+ should/would/might/could+do。3、例句:
If I were you,I would take an umbrella
。表示与过去事实相反的情况:1、从句:If+主语+had+done。2、主句:主语+should/would/might/could+have done。3、例句:If he had taken my...
if
用在什么从句中?
答:
1、语序:宾语从句用陈述句语序,即:主在前谓在后,无需do/does/did。2、时态:
主过从过
某,主现从所需,从句若是客观事实和真理,永远用一般现在时。另外,whether 和
if
是同义的,但句中 出现了or或or not 常用whether,而不用if。eg:1)--I wonder if our foreign teacher Mr. White ...
IF
虚拟语气的三种时态是什么?
答:
1、提出将来会发生的事:主句:主语+would/should/might/could+动词原形;从句:should+动词原形/were to+动词原形;2、提出现在的条件: 主句:主语+would/should/might/could+动词原形;从句:动词过去式;
例句
:
If
he studied at this school, he would know the enviornment around the school ...
英语中
if
的使用方法
答:
主句和从句位置可以互换,时态:主将从现 变成:Please tell me,
if
he comes.宾语从句中:I want to know if(是否) he comes.可改成:I want to know whether he comes.当句子中有or not是 只能用whether——I want to know whether he comes or not.时态:1.
主过从过
2.主句一般...
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