11．________energy under the earth must give off in one form or another，for

example，an earthquake.

A．Gathering B．Collected

C．Accumulated D．Assembled

答案　C　[句意"地下积聚的能量一定以一种或另一种形式释放出来，例如地震"。accumulate积累，积聚；gather聚集；collect收集；assemble集合。]

12．Each boy and girl as well as some teachers who________to visit HengshuiMiddle School in Hebei Province________asked to be at the bus station at 6∶30.

　　A．are；is B．are；are

　　C．is；are D．is；is

答案　A　[who...Province为定语从句，先行词为some teachers，故从句谓语用复数；as well as连接的并列成分作主语时，谓语动词与as well as前的成分在人称和数上保持一致，"each＋n.＋and＋(each＋)n."作主语时，谓语动词用单数，故第二空用is。]

13．-My mother devoted all her spare time to learning typing during the last two years.

-That's the case，or she ________the job in that computer company.

A．wouldn't get B．wouldn't have got

C．hadn't got D．haven't got

答案　B　[上句描述过去的事实，"or"意为"否则"，后面的句子所表达的意思与过去事实相反，故用虚拟语气。]

14．Had he worked harder，he ________the exam.

A．must have got through B．would have got through

C．would get through D．could get through

答案　B　[表示与过去事实相反的虚拟语气，从句用过去完成时，主句用would/should/could/might have done的形式。据此可知，A、C、D三项是不符合题意的。Had he worked harder是倒装句，相当于If he had worked harder。]

15．A lot of language learning，________has been discovered，is happening in the first year of life，so parents should talk much to their children during that period.

　　A．as B．it

　　C．which D．this

答案　A　[考查定语从句。as 引导的定语从句位置比较灵活，可以置于句首，句中