②The police are following several lines_of_enquiry．

　　警方正沿着几条线索进行调查。

　　enquire vt. & vi. 　 打听，询问；调查

　　enquire about 询问，打听

　　enquire into 调查，查问

　　③I called the station to_enquire_about train times.

　　我给车站打电话询问火车时间。

　　3．(教材P57)Hmm, well, we do welcome students to visit this centre, but you will have to fill in a form ...

　　嗯，哦，我们的确欢迎学生们来参观该中心，但是你们必须要填一个表格......

　　★fill in 填写(表格)；消磨(时间)；填满，塞满

　　①You need to fill in some forms if you are interested.

　　如果有兴趣，你需要填一些表格。

　　②He watched TV all day yesterday, filling_in his time.

　　他昨天看了一天电视打发时间。

　　③The hole has been filled in after a day's hard work.

　　经过一天的努力，洞已填平。

　　fill up with　　　　　 使充满，使填满

　　fill sth. (up) with sth. 用......把......填满

　　be filled with 填满了......，装满了......

　　④He filled up the tank with oil and set off at once.

　　他把油箱装满油，接着就出发了。

　　⑤The room was_filled_with smoke because so many people were smoking here.

　　屋子里满是烟，因为如此多的人在这里吸烟。

　　4．(教材P57)We could split up into groups, and come at different times.

　　我们可以分组在不同的时段来。

　　★split (split, split) vi. & vt.分割，(使)分开；撕开，割破

　　①Suddenly the box split open and a puppy jumped out.

　　箱子突然打开，从里面蹦出只小狗。

　　②His time is split between the London and Paris offices.

　　他一半时间在伦敦的办事处，一半时间在巴黎的办事处。

　　split up　　划分，分解；分组；分手

　　split off 分离，脱离

③So far, the old farm has_been_split_up into house lots.