They have nothing to do every day.

他们每天无所事事。

句型29：be sure/be sure of/about sth./be sure to do sb.

[意思]确信；对......有把握

I think so,but I'm not sure.

我想是这样，但不敢确定。

I was not sure of/about the way，so I asked someone.

我对于怎么走没有把握，所以我问别人了。

句型30：between...and...

[意思]在A和B之间

There is a shop between the hospital and the school.

在那家医院和那所学校之间有一家商店。

句型31：keep sb./sth.＋adj./V-ing/介词补语/adv.

[意思]保持......在某种状态；一直做某事

You must keep your classroom clean.

你们必须保持教室干净。

Sorry to have kept you waiting.

对不起，让你久等。

Can you keep him in the room？

你能让他在这个房里吗？

Keep them here.

让他们在这儿呆着。

句型32：find＋宾语＋宾补

[意思]发现......是怎么样的

He finds it very hard to travel around the big city.

他发现要环游这个大城市是很难的。

句型33：...not...anymore/longer

[意思]不再......

The old man doesn't travel any more.

这位老人不再旅行了。

He isn't a thief any longer.

他不再是个贼。

句型34：What's the weather like...？

[意思]某地的天气怎么样？

What's the weather like in spring in your hometown？

在你们家乡春天天气怎么样？

句型35：There is no time to do/have no time to do

[意思]没有时间做某事

There was no time to think.

没有时间思考。