高中英语《Unit 2 Heroes》Section Ⅱ 语法讲座 专题练习课下作业 北师大版必修1.doc

高一英语课下作业北师大版必修1unit 2 heroessection 语法讲座 专题练习.完成句子1i (从未听说过) it before.答案：have never heard of2 (你挤牛奶了吗)? yes. i have done that already.答案：have you milked the cow3oh dear! i (没见到你) for several years.答案：havent seen you4what (发生) to zhouqu in the last month?答案：has happened5ill help you when i (完成) my paper.答案：have finished6if it (雪停了), ill go to the park.答案：has stopped snowing7he (买这本书) for a week.答案：has had the book8it is the second time that i (犯这种错误)答案：have made the mistake9its a week since he (生病)答案：fell ill10john (工作) for 10 years.答案：has worked/has been working.单项填空1when i was at college, i _ three foreign languages, but i _ all except a few words of each.aspoke; had forgottenbspoke; have forgottenchad spoken; had forgottendhad spoken; have forgotten解析：句意：我在大学里会说三种外语，但是现在只记得每种外语中的几个单词了。上大学时是过去的一段时间，所以第一空用过去时spoke；而忘记这一动作发生在到目前为止的时间段内，故用现在完成时。答案：b2 where is the key to the meeting room? dear me! i _ it in the taxi!ahave left bleavechad left dleaving解析：根据语境可知，钥匙不在答话者手中，而是忘在出租车上了，因此用现在完成时表示过去发生的动作对现在的影响门打不开了。答案：a3according to the report, the number of people out of work _ by 10% in the past two years.awas increased bwere increasedchave increased dhas increased解析：“the number of复数名词”作主语时，谓语动词用单数形式；又“in the past一段时间”与现在完成时连用，故选d项。答案：d4we _ each other ever since we graduated from high school in the 1990s.adidnt see bwouldnt seechavent seen dhadnt seen解析：句意：我们自从90年代高中毕业后就再也没见过对方。ever since引导的时间状语从句常与现在完成时连用。答案：c5 how are you today? oh, i _ as ill as i do now for a very long time.adidnt feel bwasnt feelingcdont feel dhavent felt解析：答语句意：哦，很长一段时间以来我没有像现在这样难受了。for a very long time是重要的判断依据。答案：d6 how long have you known christopher? since he _ to our company.acame bhas comecwas coming dcomes解析：since意为“自从”，引导时间状语从句，从句中常用一般过去时，主句中用现在完成时。答案：a7 when shall we restart our business? not until we _ our plan.awill finish bare finishingcare to finish dhave finished解析：在时间状语从句中，如果表示将来发生的动作时，常用一般时态代替，但在表示完成的动作时，可以用完成时态。故选d项。答案：d8for many years, people _ electric cars. however, making them has been more difficult than predicted.ahad dreamed of bhave dreamed ofcdreamed of ddream of解析：由时间状语“for时间段” 可知，应用现在完成时。答案：b9progress _ so far very good and we are sure that the work will be finished on time.awas bhad beenchas been dwill be解析：句意：到目前为止，进展很顺利，我们相信工作会按时完成。so far表示“到目前为止”，常与现在完成时连用。答案：c10this is the first time we _ a film in