会英语的来哦. 很简单的···

强调主语 It was us who read newspapers in the reading-room in the morning。

强调时间状语 It was in the morning that We read newspapers in the reading-room .

强调地点状语 It was in the reading-room that We read newspapers.

强调宾语 It was newspapers that we read in the reading-room in the morning。

强调主语 It was us who read newspapers in the reading-room in the morning。

强调时间状语 It was in the morning that We read newspapers in the reading-room .

强调地点状语 It was in the reading-room that We read newspapers.

强调宾语 It was newspapers that we read in the reading-room in the morning。

因为这件事是已经发生过所以用it was

强调主语 We；
强调宾语 newspapers；
强调时间状语 in the morning；
强调地点状语 in the reading-room；
清晨，我们在书房看报。

强调主语It is we who read newspapers in the reading-room in the morning.

强调宾语It is newspapers that we read in the reading-room in the morning.

强调时间状语It is in the morning when we read newspapers in