C．pass away D．pass on

答案　D

解析　pass on sth.to sb.把......传递给某人，符合句意，所以选D。

7．If you miss this chance，it may be years________ you get another one.

A．as B．before

C．since D．after

答案　B

解析　考查连词。句意为：如果你错过这次机会，可能得过好多年才能再有一次机会。该句考查"It will/may be＋一段时间＋before..."句式，表示"过多久才......"。

8．The task is very difficult. I wonder whether we will be able to finish it in the________ of any other helpers.

A．appearance B．effect

C．presence D．absence

答案　D

解析　in the absence of 在......缺席或没有的情况下，符合句意。

9．Do you think shopping online will________ take the place of shopping in stores?

A．especially B．frequently

C．merely D．finally

答案　D

解析　句意为：你认为网上购物最终会取代商店购物吗？finally最终，最后，符合句意。especially特别地，尤其；frequently频繁地，经常地；merely仅仅，只是。故选D。

10．At the top of the mountain，________to see the blue sky，the kids made cheerful noises of all kinds.

A．delighted B．delighting

C．having delighted D．delight

答案　A

解析　考查非谓语动词。句意为：在山顶上，高兴地看着蓝天，孩子们唧唧喳喳欢快地说笑着。be delighted to do sth.很高兴做某事，所以选A。

11．To avoid ________on how to use the word，you'd better refer to a dictionary.

A．to get confused B．getting confused

C．to get confusing D．getting confusing

答案　B

解析　动词avoid后需跟动词­ing形式，同时系动词get后要跟过去分词，因此选B。

12．Having a brother or sister protects adolescents against negative feelings such as loneliness and