作业帮it和that代替从句的区别,在括号中1.---In fact,youneedn't get a visa through a travel agent.---Can Ididn't know （that） before.2.---She'salready fifty.---You must be joking.She doesn't look （it）.
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it和that代替从句的区别,在括号中1.---In fact,youneedn't get a visa through a travel agent.---Can Ididn't know （that） before.2.---She'salready fifty.---You must be joking.She doesn't look （it）.
it和that代替从句的区别,在括号中
1.---In fact,youneedn't get a visa through a travel agent.
---Can Ididn't know （that） before.
2.---She'salready fifty.
---You must be joking.She doesn't look （it）.
it和that代替从句的区别,在括号中1.---In fact,youneedn't get a visa through a travel agent.---Can Ididn't know （that） before.2.---She'salready fifty.---You must be joking.She doesn't look （it）.
首先that 和 it都是特指,而在具体语句中两者起的作用不相同.
第一个方面：（单指某一词）
则that与所指名词为同类,但不是同一个,而it 与所指名词为同一个.
eg1:The hat you bought is bigger than that I bought.(同类但不同个)
eg2:I can’t find my hat.I don’ t know where I put it.(同一物)
另一方面:it一般只代某一事物（即句子中的宾语）或作形式主语或宾语,而that可代一整句话.
这就是你的提的区别所在.
eg1:---In fact,youneedn't get a visa through a travel agent.
---Can Ididn't know （that） before.
这里that代（get a visa through a travel agent）,而用it就无法表达这层意思了,it在此只能代宾语visa~
eg2:---She'salready fifty.
---You must be joking.She doesn't look （it）.
这里it代（fifty）,很清楚,那为嘛不用that呢?在这里用that的话就是指整句话,也行,不过必须这么用look like that形成从句~
本人能力有限,只能讲到这种地步了~
句子中that和it都是指代
1 that指代的是整件事，即指代无需通过旅行社办理签证 这件事
2 it指代的是句子中的某一具体事物，即指代 五十岁