请问如何区别if引导的条件句和if引导的虚拟语气

what和if引导的从句有何区别

这个问题比较容统,不太好回答。不同的句子意思当然也不会相同。以下我将对宾语从句简单地说明一下: 1。作动词的宾语: (1)由that引导的宾语从句 如:I hope that you can trust me。 又如Our teacher says that the world is becoming a global village。 常跟that宾语从句的动词有:admit,agree,believe,confess(坦白,承认),decide,declare,expect,explain,feel,hear,hope,intend, mean,order,purpose,remem...全部

  这个问题比较容统,不太好回答。不同的句子意思当然也不会相同。以下我将对宾语从句简单地说明一下: 1。作动词的宾语: (1)由that引导的宾语从句 如:I hope that you can trust me。
  又如Our teacher says that the world is becoming a global village。 常跟that宾语从句的动词有:admit,agree,believe,confess(坦白,承认),decide,declare,expect,explain,feel,hear,hope,intend, mean,order,purpose,remember,request,say,see,suggest,think等 在think,suppose,believe,presume(假使)dare等后时,that往往省略。
   (2)由连接代词或副词what,when,where,which,who,whom,whether(if),how, why等引导的宾语从句 如:We don't konw what Tom will do next。
  又如:I wonder if I have made a mistake。 2。作介词的宾语: 介词后的宾语从句一般用连接代词和连接副词引导 如:I have no idea of how anxious she had been。
   注意:介词后跟that引导的宾语从句只能在固定搭配中使用,常用的只有in that(因为),but that(要不是),except(save)that(除了。。。)等。 3。作形容词宾语 如:I am afraid (that) my father will be back soon。
  又如:We are not sure whether(if) we can find a better solution to this problem。 这类可跟that从句的形容词还有:anxious,certain,confident,determined(决定的)glad,proud, surprised,sorry,pleased,satified,worried等。
   4。动词+it+that从句 正如it可以作形式主语一样,it也可以作形式宾语,而把真宾语的that从句后置,特别是带复合宾语的情况下。如:We consider it necessary that you should give us a general idea before going into details。
  又如:We all thought it a pity that you were unable to attend our meeting。收起