下列句子划线部分的句子成分
下列句子划线部分的句子成分
1.The problem (is how to feed a growing world population of almost 6 billion).
2.Alice made a promise （to allow Peter to take a pound of his flesh from whatever part of his body) if he-did not pay the money back at the end of three months.
3.At the time when Bassanio and Portia were getting married,a letter arrived from Antonio (saying that all his ships had been lost at sea and that he would have to give Shylock a pond of his flesh ).
4.what she was afraid of (was their taking her daughter abroad)
5.when I came out of the house he dropped the stick and explained that there was (something alive in our) rubbish bin
请简要说明
1.（是放在BE动词后）一般放在be动词或者其他系动词后的为表语）
2.定语（不定式作后置定语） 不过这个也有点象同位语噶
3.定语
4.表语.前面半截是主语从句
5.从表面看是表语,其实也可算是there be 句型里面真正的主语.因为there be 是倒装了的句型.可是第一句中，be动词也被划进去了啊。。第三局答案上写的是状语，不过我也觉得是定语。be 不该滑进去啊。 划进去就不算一个句子成分了哦。 相当于系表结构了吧。 我也不清楚哦。一般没这样划的吧第三句也可以理解为状语。虽然说它是定语也说得过去 。相当于是doing 表伴随吧如：he arrived home at mid nignt，carrying a girl on his back. 这里的carring后面半截就可以算伴随状语。