1、Unit 20Period Three.语法填空1I _ (do) my homework this time tomorrow.2The president _ (meet) the foreign delegation (代表团) at the airport then tomorrow.3I _ (finish) all the work by the time you are back this evening.4I am sure he _(leave) Paris by this time tomorrow.5I hope we _(get) all the information
2、 before you come tomorrow.6Can we meet tomorrow afternoon?Not in the afternoon. Im afraid I _ (work)7Ill be able to come to see your performance at 8：30 tomorrow evening.Im sorry, by then my performance _(end) and I _ (meet) reporters in the meeting room.8If the horse wins tomorrow, it _(win) twenty
3、 races in the past three years.9By the time he gets home, his father _(leave) for Paris on business.10I wont tell the student the answer to the math problem until he _ (work) on it for more than an hour.【答案】1.will/shall be doing2.will be meeting3will have finished4.will have left5.will have got6will
4、 be working7.will have ended；will be meeting8will have won9. will have left10.has been working.单项选择1When you arrive at the airport, a guide_ for you.Awill be waitingBwill waitCis waitingDis going to waiting2I am afraid I will not be available. I_ a friend off at 2：00 this afternoon.AseeBam seeingCwi
5、ll seeDwill be seeing3I hope you_ the instructions ready before I come tomorrow.Ato getBshall getCwill getDwill have gotten4She has been studying here for five years and by the end of next summer she _.Awill graduateBwill be graduatingCwill be graduatedDwill have graduated5The conference_ a full wee
6、k by the time it ends.Amust have lastedBwill have lastedCwould lastDhas lasted6By the time Jane gets home, her aunt _for London to attend a meeting.Awill leaveBleavesCwill have leftDleft7Id like to call you at 10 oclock next Friday morning if it is convenient.Im afraid I_an important exam.Awill have
7、 attendedBwill be attendingCattendDam attending8By the end of this year, I_ enough money for a holiday.Awill saveBwill be savingCwill have savedDhave saved9By the summer，Elizabeth_ here for 10 years.Awill workBworksCwill have workedDhas worked10By the time you arrive in London，we_ in Europe for two
8、weeks.Ashall stayBhave stayedCwill have stayedDhave been staying【答案与解析】1A句意：当你到达机场时，一个导游将会在那儿等你。表示在将来某一时刻正在进行的动作，故应选用将来进行时。2D句意：恐怕我没有时间。今天下午2点我要去为一位朋友送行。该题表示下午2点正在发生的事情，故应用将来进行时。3D句意：我希望在我明天来之前，你已经把说明书准备好了。“把说明书准备好”发生在明天“我”回来之前，所以用将来完成时。故选D。4D句意：她已经在这里学习了5年，到明年夏天为止就毕业了。by the end of next summer表明应该用
9、将来完成时。故选D。5B句意：会议从开始到结束，将持续整整一个星期。到将来某时(会议结束)之前已完成的动作，所以用将来完成时。故选B。6C句意：等简到家时，她的姑姑那时就已经动身去伦敦参加会议。由by the time可以判断出，本题应用将来完成时。7B根据句意可知，本题应选用将来进行时，表示将来的某一时间正在进行的动作或状态。8Cby the end of this year是明确表示将来的时间状语，主句表示在这个时间以前完成的动作，故应用将来完成时。9C句意：到今年夏天为止，伊丽莎白就在这里工作10年了。句意表示动作到将来的某一时间为止，所以用将来完成时。故选C。10C由by the time you arrive in London可知，此处应用将来完成时。
