我知道It’s the first time that…的从句时态要用现在完成时。如:It’s the first time he has come here. 这是他第一次来这儿。同时也知道It wasthe first time that…的从句时态要用过去完成时。如:It wasthe first time that I had seen him. 那是我第一...
关于 in the past (last) few years 这类介词短语,我知道以下知识点:一是它们通常与现在完成时连用;二是其中的介词 in 也可以换成 during / for,即说成during the past (last) few years, for the past (last) few years。我的疑问是:这类用法中的介...
She stood there motionless, her eyes filled with tears—whether of shame, frustration, or grief it was difficult to tell. motionless 是形容词,为何修饰动词sat? 原句中的用法是固定搭配吗?再比如 drive safe, 而不是drive safely.
...rth's biodiversity is expensive in nature,an
estimated 1.5 million species of plants,animals,bacterias,fungi and others have
been catalogued with potentially millions.我在字典里查了介词with的各个词条解释,感觉没有适合解释这句话里with使用的。请教这句话里with的...
He made another wonderful discovery, ___A___ of great importance to science.A. which I think is B. which I think it isC. which I think it D. I think which is
Each couple's style of
communication changed very little from that initial videotaped contentious
exchange.1.very little后是省略了中心名词还是本身就是可以指代某些事物?他是状语还是宾语,里面的very和little分别是什么词性表明修饰关系,为什么?2.fro...