新概念2,第四课,最后一句：So,he is finding this trip very exciting 这句话的结构怎么分析啊,我语法不好,why is Tim finding ths trip very exciting 中is 可以用do 替换吗 为什么?

新概念英语二册第四课中的问题请问：最后一句so he is finding this trip very exciting为什么要这样用?前面都是现在完成时,为什么突然变成现在进行时?有什么语法在里面? 新概念2,第四课,最后一句：So,he is finding this trip very exciting 这句话的结构怎么分析啊,我语法不好,why is Tim finding ths trip very exciting 中is 可以用do 替换吗 为什么? 关于新概念英语第四册新概念第四册第20课snake poison的最后一句the effects on these of viperine poison is almost immediate.为什么谓语用is而不用are? 对新概念英语第二册第四课结尾句的理解新概念英语第二册第四课结尾句：My brother has never been abroad before,so he is finding the trip very exciting.为什么后半句要用现在进行时he is finding,应该怎么理解 新概念英语2册47课最后一句The villagers have told him that they will not accept pub even if he gives it away.直接引语变间接引语不应语态后退吗?应用过去式啊 新概念英语第二册第4课的一个问题第4课最后一句:My brother has never been abroad before,so he is finding this trip very exciting.为什么后半句的谓语动词用现在进行时“is finding”而不用过去式“found”? 新概念3册24课最后一句的 once upon a time怎么理解, 在新概念英语第四课中,so he is finding this trip very exciting.为什么用现在式is,这里不是用过去式吧?那句话写为so he finds this trip very exciting,可以不? 新概念英语第四册一共有多少课啊 谢 关于新概念英语第四课He is working for a big firm and he has ...还有一句He has just bought an Australian car and has gone to.为什么第一个and后有主语“he”而第二个and后直接就接“has gone to...“了? 为人民服务第四段最后一句的体会 新概念英语2册96课练习题,He spoke so quickly,I did not have time to take_____what he said.I have taken _____painting in my spare time.Can you make _____the address on this envelope?第三句怎么翻译 新概念二册第49课最后一句After he had put it on the floor ,he promptly went to sleep againAfter he had put it on the floor ,he promptly went to sleep again这句话可不可以改成 putting it up on his house,he went back to sleep.我是 新概念二册第49课最后一句After he had put it on the floor ,he promptly went to sleep againAfter he had put it on the floor ,he promptly went to sleep again这句话可不可以改成 putting it up on his house,he promptly went back to sleep 新概念英语第三册第四课1.Alf was ____ anything to his wife.a.so embarrassed he said b.very embarrassed and saidc.very embarrassed,so he said d.so embarrassed he did not say2.He want to be______Mr.Bloggs,not Alfa.addressed as b.namedc.cr 新概念二第四课的 i miss you so much英文歌曲最后一句 真诚的希望各位朋友帮我解答下这句英语我现在学习新概念英语第四册17课遇见一句不懂的句子现在需要求大家帮我解答下.The question became one of whether Man could control the disease he had invented这句