高一英语上册单元同步练习三.doc

练习3 Ⅰ.单项填空 1．—How long________at this job? —Since 1990. A．were you employed　　　B．have you been employed C．had you been employed D．will you be employed 答案：B　从答语Since 1990，我们可以知道，说话人问的是一段时间，since表示“从过去一直到现在”，因此本空用现在完成时。 2．—What happened to the priceless works of art? —________. A．They were destroyed in the earthquake B．The earthquake was destroying them C．They destroyed in the earthquake D．The earthquake destroyed them 答案：A　本题考查时态、语态与习惯表达。句意：“那些价值连城的艺术品发生了什么事？”“它们在地震中被毁掉了。”第一个说话人问的是发生在the priceless works of art上的事情，因此回答时为了有所侧重，将they放在了主语的位置上，they与destroy之间为被动关系，且叙述过去的事情，因此最佳答案是A。 3．If city noises________from increasing, people________shout to be heard even at the dinner table 20 years from now. A．are not kept; will have to B．are not kept; have to C．do not keep; will have to D．do not keep; have to 答案：A　句意：如果城市噪音的上升趋势不被禁止，那么二十年后人们即使在用餐的时候也得大声喊叫才能被人听到。真实条件状语从句用一般现在时，主句应用一般将来时。还要注意city noises和keep是被动关系。 4．All the gifts must be mailed immediately________in time for Christmas. A．in order to have received B．in order to receive C．so as to be received D．so as to be receiving 答案：C　so as to后接动词原形，表示“以便”，根据gift与receive的关系可判断出要用to be done的形式；表示被动。 5．Millions of pounds worth of damage________by a storm which swept across the north of England last night. A．has been caused B．had ben caused C．will be caused D．will have been caused 答案：A　损失被造成，用被动语态，持续到现在的影响。 6．As a result of the use of the new technology, the production of this product________50 percent. A．has risen to B．has been raised to C．has risen by D．has been risen by 答案：C　rose是不及物动词，不能用被动语态；如果是增长或提高了百分之多少，必须用介词by，用介词to时只能是具体数字。根据这两条可判断，答案为C。 7．—Why isnt the recorder ready yet? —Im sorry. It________in the shop. A．is being repaired B．is repaired C．has been repaired D．hasnt repaired 答案：A　此题考查时态和语态。根据语意，应该用现在进行时态的被动语态，所以正确答案为A，表示机器正在修理。 8．—The window is dirty. —I know. It________for weeks. A．hasnt cleaned B．didnt clean C．wasnt cleaned D．hasnt been cleaned 答案：D　根据时间状语可确定用现在完成时，表示已经有好几周没擦窗子了；根据句意应用被动语态。 9．Albert Einstein will