unit 4 public transport grammar and writing 学案

　　动词短语

　　[语法初识]

原句感知 自主探究 ①This traffic problem led to the development of the underground system.

②In 1884, the Metropolitan Railway Company and the Metropolitan District Railway linked up.

③When London was bombed, many underground stations functioned as bomb shelters.

④But you will have to fill in a form and then we will decide on the best way.

⑤We could split up into groups, and come at different times.

⑥I can call you back later. (1)以上例句中黑体部分在句中作谓语；它们不是一个词单独作谓语而是由动词加一个介词或副词一起作谓语。

(2)①③④句中黑体部分的构成特点是它们都是由动词加介词构成的，相当于及物动词，可以直接带宾语。

(3)②句中黑体部分的构成特点是由动词加副词构成的，其后不接宾语；若接宾语，需要加介词，如⑤句。

(4)⑥句中黑体部分的构成特点是由动词加副词构成的，其后可以加宾语。宾语为代词时，必须放在动词与副词之间。 　　

　　[语法剖析]

语法点一 动词短语常见的构成方式及特点 　　1.动词＋副词

　　该类动词短语分及物的和不及物的两类。

　　Please turn off every light in the house.

　　请把房子里的每一盏灯都关掉。(及物)

Harry turned up after the party when everyone had left.