一.1.It is known to us all that the earthe is round?可以去掉all吗?去掉all后和原句意思一样吗?2.It is known to us which he liked best.与It is known to us all which he liked best有区别吗?3.It is known to us which he liked best. 众所周知他最喜欢哪一个。这个句...
...;政治家;政客 numerous /ˈnjuːmərəs/ adj. 众多的;许多的 theory /ˈθɪəri/ n.
理论;学说 relativity /ˌreləˈtɪvəti/ n.
相对论;相对性 formula /ˈfɔːmjələ/ n.
公式;方程式;配方 genius /ˈdʒiːniəs/ n.
(pl geniuses) 天才;天资;天赋 gentle /...
...及时态的一致性。下面看两个句子:1. Tom is not present at the meeting because he has gone to Shanghai on business.2. I have been told that Tom is a university student.以上两句中,一个在从句一个在主句,分别使用了现在完成时。▲句1,按说“他去上...