if you this experiment,you will understand the theory better.答案是have done,为什么呢?

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if you this experiment,you will understand the theory better.答案是have done,为什么呢?

if you this experiment,you will understand the theory better.答案是have done,为什么呢?
if you this experiment,you will understand the theory better.
答案是have done,为什么呢?

if you this experiment,you will understand the theory better.答案是have done,为什么呢?
if引导条件状语从句,某事很可能发生,条件是可能存在的,主句中某种情况发生的概率也是很高的.
if从句用现在完成时,主句用一般将来时.如.
If you "have finished" dinner,I’ll ask the waiter for the bill.
如果你吃完了,我就叫服务生来算账
所以题目填have done,
if you "have done"this experiment,you will understand the theory better.
如果你做完这个实验,你就会更好地理解这个理论.
）

你好:
have sth done 使某事被做 相当于是 do sth 它是固定的用法 可以当成公式来记住
意思是 如果你做了实验 你将更好的理解这个原理

have done现在完成时态
如果你完成了，你就能更好理解这个理论。
前提是已经完成了
这道题目是根据句意填的，多多揣摩！

是一种假设，have done 完成时，所以用到了虚拟语气，译为：如果你做过这个实验，你就会更好的理解这套理论。

If someone( )you this question If you go _____ (shop)this afternoon. If you're leaving take this... 35.With such a short time (leave)______,it’s impossible for US to finish this complicated experime为何填left,而不填has been left If you can read this answer this question :D If this world abandoned your丶 you to abandon this 英语翻译You will ____________________ if you do like this. If I love you,you love me,that this much if you do like this,i will beat you to If you would understand this sentence,you still love me. This can help you if you let it. If you continue like this,I die before you Please c______me if you have time this evening. If you will leaving .please take this my well,if you really like this book,______it.(take) If you can translate this sentence ,I can have a If you want me ,satisfy me Like this words RT i will let you know if this changes.