一道英语选择题,赐教下( )at least once a year,whether you are a child or an adult,is very important for your health.A.being examined B.examined C.examining D.having been examined翻译下,还有为什么选A不选B详细讲解下

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一道英语选择题,赐教下( )at least once a year,whether you are a child or an adult,is very important for your health.A.being examined B.examined C.examining D.having been examined翻译下,还有为什么选A不选B详细讲解下

一道英语选择题,赐教下( )at least once a year,whether you are a child or an adult,is very important for your health.A.being examined B.examined C.examining D.having been examined翻译下,还有为什么选A不选B详细讲解下
一道英语选择题,赐教下
( )at least once a year,whether you are a child or an adult,is very important for your health.
A.being examined B.examined C.examining D.having been examined
翻译下,还有为什么选A不选B详细讲解下

一道英语选择题,赐教下( )at least once a year,whether you are a child or an adult,is very important for your health.A.being examined B.examined C.examining D.having been examined翻译下,还有为什么选A不选B详细讲解下
两逗号间成份是插入语,把它划掉,发现句子缺主语,B项不可以作主语.不管你是小孩或是成人,一年至少进行一次体检,对你的健康有益.

选择A,不选B。因为这里是动名词短语Being examined 作主语。同时也含有被动之意。
无论你是孩子还是成年人,每年至少做一次体检对你的健康来说是非常重要的。
做体检是被动的,是接受医生的检查,所以用被动be examined.
动名词短语作主语的例子还有很多。如:
Reading in the sun is bad for your eyes.
P...

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选择A,不选B。因为这里是动名词短语Being examined 作主语。同时也含有被动之意。
无论你是孩子还是成年人,每年至少做一次体检对你的健康来说是非常重要的。
做体检是被动的,是接受医生的检查,所以用被动be examined.
动名词短语作主语的例子还有很多。如:
Reading in the sun is bad for your eyes.
Planting more trees is important for our environment.

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这一题考查的是非谓语动词做句子的主语,它有两种形式不定式和动名词,此题应填动名词。选A:your health是做examine的承受者,故应用被动语态。而B项不能表示被动语意。

B项是个过去式啊!A项是将来式的啊