1、1Why does the lake smell terrible?Because large quantities of water _(污染了)(pollute)【答案】have been polluted2I havent the slighted idea_(他正在说什么)(talk)【答案】(of)what he is talking about3(2008年湖北卷)At present lots of food，water，tents，and medicine_(正在运往)from all over China and other parts of the world to the
2、 earthquakestricken area.(transport)【答案】are being transported4_(如有必要)，I will take some food with me.(if)【答案】If (it is) necessary5The professors advice_(非常有价值) to us.(of)【答案】is of great value 6He will have learned English for eight years by the time he _(大学毕业) next year.(gradute)【答案】graduates from th
3、e university7So far，Hope Project _(阻止) thousands of students in the rural areas of western and central China from dropping out of school.(prevent)【答案】has prevented8No sooner _(我坐下来) than the phone rang.(sit)【答案】had I sat down9The lawyer _(与订婚) my Chinese teacher for ten years.(engage)【答案】has been en
4、gaged to 10Hi，Jim，I _(没想到你会来) today.John said you were ill.Oh，yes.But I feel better today.【答案】didnt think (that) you would come11Three fifths of the workers in our factory _(已经受过训练) in that technical and engineering school.(train)【答案】have been trained12We _(在上网) when there was a power cut.(surf)【答案】were surfing the Internet13John couldnt stay in the house，which_(在粉刷)(paint)【答案】was being painted14_(那不可能是周先生)，for he has gone to Shanghai.(can)【答案】That cant be Mr zhou15I was still sleeping_(火灾发生了)，and then it spread quickly.(break)【答案】when the (a) fire broke out
