Is Runyang Bridge open to the public yet?Yes,it _____for almost one and a half months.A has opened B has being openedC has been open D was open答案到底是什么呢?不应该是 has been opened吗?求分析

Is Runyang Bridge open to the public yet?Yes,it _____for almost one and a half months.A has opened B has being openedC has been open D was open答案到底是什么呢?不应该是 has been opened吗?求分析
Is Runyang Bridge open to the public yet?Yes,it _____for almost one and a half months.
A has opened B has being opened
C has been open D was open
答案到底是什么呢?不应该是 has been opened吗?求分析

Is Runyang Bridge open to the public yet?Yes,it _____for almost one and a half months.A has opened B has being openedC has been open D was open答案到底是什么呢?不应该是 has been opened吗?求分析
在这里open是形容词!　不是动词!　比如：这个商店开着门 the store is open!
所以是C

has been opened和has been open都没有错，用法不一样而已。
如果是has been open的话，has been是动词 (be)，open是形容词。
如果是has been opened的话，has been仍是动词 (be)，但特指被动语态，opened是动词、open的被动形式。那在这句话里表被动用也不应该算错吧？用被动形式没有错，以上两个选项意思是...

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has been opened和has been open都没有错，用法不一样而已。
如果是has been open的话，has been是动词 (be)，open是形容词。
如果是has been opened的话，has been仍是动词 (be)，但特指被动语态，opened是动词、open的被动形式。

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has been open 是系动词+形容词,表示持续的状态,"已经开业一个半月了"
像这种情况一般是不用被动语态的
所以选C啊
系动词的用法和举例如下:
系动词三大类：
　　1. “存在”类: 表示存在或具有某种特征或状态。这类连系动词强调“存在”。常见的有: be(是)，look(看起来)，feel(摸上去)，seem(似乎是)，appear(似乎、显得...

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has been open 是系动词+形容词,表示持续的状态,"已经开业一个半月了"
像这种情况一般是不用被动语态的
所以选C啊
系动词的用法和举例如下:
系动词三大类：
　　1. “存在”类: 表示存在或具有某种特征或状态。这类连系动词强调“存在”。常见的有: be(是)，look(看起来)，feel(摸上去)，seem(似乎是)，appear(似乎、显得)，prove(证明是)，smell(闻起来)，taste(尝起来)，sound(听起来)等。例如:
　　The story sounds true.
　　Those oranges taste good.
　　2. “持续”类: 表示某种情况或状态的持续。这类连系动词强调“持续”。常见的有: remain(依然)，keep(保持)，stay(保持)，continue(继续、仍旧)，stand(处于某状况或情形)等。例如:
　　—Why don't you put the meat in the fridge?
　　—It will stay fresh for several days.
　　It's already ten in the morning. The store remains closed. What's the matter?
　　3. “变化”类: 表示由一种情况或状态变化成另一种情况或状态。这类连系动词强调"变化"后的情况或状态.常见的有: become(变成)， turn(变成)， grow(变得)， go(变得)等。例如:
　　Put the fish in the fridge, or it will go bad in hot weather.
　　连系动词使用要点：
　　1. 有些连系动词通常不用于被动语态和进行时态中。如:feel，taste等词。例如:
　　-Do you like the material?
　　-Yes, it feels very soft.
　　2. 一般情况下，连系动词主要跟形容词或分词作表语。例如:
　　Be careful when you cross this very busy street. If not， you may get run over by a car.
　　3. 能跟名词作表语的连系动词常见的有:be, become, appear, seem, prove, remain和turn等。注意:turn后跟(表示主语身份的)名词作表语时，不加冠词。例如:
　　Twenty years later, he turned teacher.
　　The population growth in China remains a problem.
　　4. 连系动词也可跟不定式(to do / to be)，常见的有: appear, seem, remain, prove, look等。
　　例如:
　　Having a trip abroad is certainly good for the old couple, but it remains to be seen whether they will enjoy it.
　　On the long journey, Peter proved to be a most interesting guide. We all had a wonderful time

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