① 时间
Looking up suddenly, Robert saw a rainbow in the sky.
Floating on water, a ship displaces an amount of water equal to its own wweight.
Hearing the news that her son was rescued, she felt greatly relieved.
② 原因
Not knowing how to pronounce the word “plough”, the Frenchman looked up it in a dictionary.
Considering the importance of the experiment, they checked the result again and again.
Living in a remote village, we rarely have visitors coming.
③ 条件
This same thing, happening in the peacetime, would be a great disaster.
Unless meeting with unexpected difficulties at the office today, I shall be home early tonight.
④ 让步
Granting the achievements to be great, we have no reason to be conceited.
Walking and sleeping, he has the plan in his mind.
The chemical composition of water is H2O, whether being solid, liquid or vapor.
⑤ 结果
Their car was caught in the traffic jam, thus causing their delay.
We introduced a lot of advanced devices, thus saving much time and labor.
⑥ 目的
The people are working hard, striving to realize our country’s modernization.
We held a meeting, marking the anniversary of his death.