语法练习

1.___ a large group, your tone should be clear and loud.

A.When addressing

B.While addressing

C.When you address

D.Upon addressing

2.Pedestrians always cross the street ___ moving vehicles.

A.among

B.between

C.in

D.along

3.Advertising is distinguished from other forms of communication ___ the adviser pays for themessage to be delivered.

A.in that

B.because

C.which

D.whereas

4.I never go past that house ___ I think of my childhood.

A.in which

B.to which

C.with which

D.which

5.They were the B Scouts ___ to help elderly people cross the streets.

A.whose was the task

B.to whom the task was

C.whose task it was

D.it was whose task

答案详解

1.[C]【解析】非谓语动词。该题答案中的A、B、D项均错，因为它们的逻辑主语应该是人，而不是your tone。因此，此处可以用一个状语从句，即C项。句意：面对很多人讲话时，你的声音就一定要清楚、洪亮。

2.[B]【解析】介词用法。among仅表示“在多者之中”，而between则可表示“多个人（或物）的每二者之间”，根据本题题意，应选between。故答案为B项。句意:步行者总是在奔驰的车辆之间横穿马路。

3.[A]【解析】名词性从句。在该题中that引导从句作介词in的宾语，表示“在于或因为”的意思；其他选项不符合题意。因此，A项为正确答案。句意：广告不同于其他交流形式之处就在于，做广告的人要付款发送信息。

4.[B]【解析】状语从句。句中but that往往用于否定句或疑问句，具有否定含义。在该句中用在状语从句后，表示否定意义。其他选项都不符合题意，不能在该句中做成分。因此，B项为正确答案。句意：每一次路过那幢房子，我就会回想起我的童年。

5.[C]【解析】定语从句。该题的定语从句“whose task it was to...”中，it是先行词，实际主语是“to help elderly people...”,“whose task”是从句中的表语。其他选项都不合适。因此，C项为正确答案。句意：他们是童子军，其任务是帮助老人过马路。