We are going to have a barbecue _______ it rains .A.if not B.when C.except that D.unless选哪一个啊~C为什么不行啊?B肯定不行，现在就是不确定C和D是不是应该这样理解啊？Unless引导的条件状语从句遵循主将从现

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We are going to have a barbecue _______ it rains .A.if not B.when C.except that D.unless选哪一个啊~C为什么不行啊?B肯定不行，现在就是不确定C和D是不是应该这样理解啊？Unless引导的条件状语从句遵循主将从现
We are going to have a barbecue _______ it rains .
A.if not B.when C.except that D.unless
选哪一个啊~
C为什么不行啊?
B肯定不行，现在就是不确定C和D
是不是应该这样理解啊？Unless引导的条件状语从句遵循主将从现的原则，except that后引导从句，但是应该是except that it will rain.所以选择D。

We are going to have a barbecue _______ it rains .A.if not B.when C.except that D.unless选哪一个啊~C为什么不行啊?B肯定不行，现在就是不确定C和D是不是应该这样理解啊？Unless引导的条件状语从句遵循主将从现
C except that 是除了.以外只可惜表示一种遗憾,
unless 是如果不,除非所以选D

D
不下雨就去烧烤
A是如果不We are going to have a barbecue if it doesn't rain .
B当
C除...之外
D除非

D
unless 是如果不，除非的意思，符合上下句意思。
C except 作为连词，是要不是的意思，整句应为 We would go to have a barbecue except that it rains. 要不是下雨的话，我们就去BBQ了。

选A C一般都是讲一类事物，有另类这样的情况用except

应该是C（除了....之外）,We are going to have a barbecue except that it rains .
如果是D（除非）的话要表达相同的意思应该是：We are not going to have a barbecue unless it rains . 即：我们将不去烧烤，除非天下雨。

我怎么感觉选A啊

Where are we going to have it? We are going to have a picnic on next Sunday. 改错:We are going to have an football match. we are going to have a class t______? holiday,we,going,are,have,to,a连词成句 We are going to have a sports day next Monday. We are going to have a 还有,下面的扩句填什么好?We are going to have a Picnic．We are going to have a Picnic＿We are going to have a Picnic＿＿ have,to,we,a,good,are,going,time.(排序) We are going to have a picnic ( ) tomorrow morning We are going to have a barbecue _______ it r.. We are going to have the weather tomorrow~求翻译! going,are,have,lunch,we,to,together.连词成句 We are going to have a sports day next are we going to have Science by the we are going to have a party tonigh.engoy_____. We are going to have a holiday the month ( ) next we are going to have a holiday if it( )October we are （）going to have any classes next week