请英语高手帮忙分析下这句话It is as if single unimportant event set up a chain of reactions,在这句话中as if引导是方式状语从句,请问前面It is干什么用?请问这里的as if引导的是方式状语从句吧？还是表语

请英语高手帮忙分析下这句话It is as if single unimportant event set up a chain of reactions,在这句话中as if引导是方式状语从句,请问前面It is干什么用?请问这里的as if引导的是方式状语从句吧？还是表语 请英语高手帮忙分析下句子结构 i have never been to a debate so far这句话是什么意思, 高手帮忙分析下 only when it is hungry will a lion attack a human being.这句话倒装正确吗?请分析下～ It really makes me so tired that I want to have a rest.请高手帮忙分析这句话表达是否有问题, it's time for you to sleep 这句话对吗 请帮忙分析下 请英语高手帮我分析一下下面这句话的结构,when your cargo is stuffed into a container ,it is shipped to the container yard to be loaded on board the ship according to the stowage plan! There is a film on at one cinema called 'Space War'.请高手帮忙分析下该句子结构. 英语句子求高手帮忙具体分析句子成分,The rural population bth dispersed and grew,and was probably less homogeneous and more mobile than it had been a generation earlier.请英语高手帮我具体分析一下这句话里面的成分, 英语高手帮忙分析下句子结构 英语高手帮忙分析下句子结构, 请英语高手帮忙分析句子结构 life is but a dream.请高手帮忙怎么翻译这句话? 请英语高手帮忙分析下,这个句子成份!请英语高手帮忙分析下,这个句子成份:your house will take care of you in old age when getting into a problem,how should i solve it?这句话有没有语法错误呢,请懂的人帮忙分析下 It is common for the best student to give speeches.请各英语高手吧这句话含有的语法完整的说下好吗? A is to B,what C is to D.想请英语高手分析下此句中what 的成分以及这是什么 请高手帮忙分析两个英语句子.Once you have got to know someone try to give them a present to suit their personal interests as well.这里的once 和got to在这里是什么意思,整句话怎么翻译比较通顺?In Asia it is considered p