作业帮高三英语问题~~~~~~~~~~~~~~~~~~~~~~it is said that a polar winterit is said that a polar winter,____,will stays for more than six months 填once arrives 还是once it arrives ,这里应该是插入语,插入语不是应该是不完整的句子
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高三英语问题~~~~~~~~~~~~~~~~~~~~~~it is said that a polar winterit is said that a polar winter,____,will stays for more than six months 填once arrives 还是once it arrives ,这里应该是插入语,插入语不是应该是不完整的句子
高三英语问题~~~~~~~~~~~~~~~~~~~~~~it is said that a polar winter
it is said that a polar winter,____,will stays for more than six months 填once arrives 还是once it arrives ,这里应该是插入语,插入语不是应该是不完整的句子吗?
farming,_____to human welfare,is now a small part of the economy.
答案是essential as it is ,这里插入语为什么是一句句子?为什么不把it去掉?
高三英语问题~~~~~~~~~~~~~~~~~~~~~~it is said that a polar winterit is said that a polar winter,____,will stays for more than six months 填once arrives 还是once it arrives ,这里应该是插入语,插入语不是应该是不完整的句子
1.插入语可以是以下几种：过去分词短语作插入语、句子
所以这里只能选once it arrives
2.就是同上面的道理了
你可以看看这里的参考
第一个填once arrives
第二个的it是指代前面的farming，在插入语中不能去掉，这句话还可以这么说：
Essential as farming is to human welfare, it is now a small part of the economy.
前面一句因为it is said that a polar winter will stays for more than six months 已经是完整的,所以我认为应该是once arrives 只做修饰性的插入语.而后面一句只有farming,没有一个完整的句型. 而essential as it is 插入后就成为强调语式.