时态的基本判定方式：一、时间状语同时态的关系：一般情况下，简单句可根据句中的时间状语确定谓语动词的时态。

其判定方式如下：1、句中含有yesterday; last year（last + 具体时间）; two days ago（一段时间+ ago）; just now; this morning; in 2008（in + 过去的年代）; the other day; over the weekend等时间状语时，谓语动词用一般过去时；2、句中含有tomorrow; next week（next +具体时间）; in two hours（in +一段时间）; (how) soon; from now on; 10 years from now（一段时间+from now）; in the future; in 2012（in +将来的年代）; by (the end of) next month （by+将来时间）; for the weekend; this afternoon; this evening; tonight; this weekend等时间状语时，谓语动词用一般将来时；3、句中既有yesterday等过去时间状语，又有一个具体时间点（at 5:00; this time; at that time）时，谓语动词用过去进行时；4、句中含有recently; in the last/past two years（in the last/past+一段时间）; over the years（over the+一段时间）; since 2005（since+具体时间或从句）; for two years（for+一段时间，句中无其它时间状语）; before（单独用于句尾）等时间状语时，谓语动词用现在完成时；5、by (the end of) last year（by+过去时间）; two days before（一段时间+before）; for和since说明的时间同时用于句中;by the time + 从句（过去时态）等时间状语时，谓语动词用过去完成时；6、简单句中如不含上述时间状语或有含说话时间在内的表示现在时间关系的词语时（如now; today; these days等词），其时态的判定一般按以下步骤进行：------ 句中是否含有表示频率关系的词。

如有，用一般现在时；------ 句子是否说明客观规律。

如是，用一般现在时；------ 句中动词是否表示状况。

如是，用一般现在时；------ 句中动词是否为延续性动态动词。

如是，用现在进行时；------ 句中动词是否为完成性动词（瞬间动词）。

如是，用现在完成时。

二、主从句时态的一致性原则：主从复合句可根据其时态一致性原则，通过主从句中任意一个句子的时态确定另外一个句子的时态；含有时间状语从句的主从句还可通过其引导词所表示的不同时间关系，确定主句和从句的时态。

三、通过上下文关系判定时态：另外我们还可以根据并列谓语的时态一致性原则、问句和答语的时态一致关系、无转折时间的短文时态一致原则等上下文时态的关联以及句子的逻辑关系来判定句子中谓语动词的时态。

Exercise( )1. What _____ you _____ over the weekend?A. will; doB. does; doC. did; doD. were,; doing( )2. Xiao Li usually _____ to school by bike last year.A. goesB. wentC. will goD. is going( )3. What _____ in our town 100 years from now?A. happenedB. is happenedC. has happenedD. will happen( )4. Mr. Smith _____ to see you in an hour.A. came B. has comeC. will come D. comes( )5. _____ you _____ from your parents recently?A. Did; hearB. Have; heardC. Do; hearD. Will; hear( )6. We _____ TV at home this time last night.A. were watchingB. watchedC. have watchedD. would watch ( )7. We _____ over 1500 English words by the end of last month.A. have learnedB. had learnedC. will learnD. learnt ( )8. She _____ in Shanghai for ten years since 1992.A. has livedB. had livedC. livedD. will live( )9. She _____ in Shanghai for ten years. A. has lived B. had lived C. lived D. will live( )10. We all know that the earth _____ round the sun.A. goesB. wentC. is goingD. will go( )11. “Where are the boys?”“They _____ soccer on the playground.”A. playB. are playingC. were playingD. played( )12. Look! Lucy _____ under the tree.A. readsB. is readingC. was readingD. read( )13. He _____ more than 200 model cars in the last five years.A. has collectedB. had collectedC. collectedD. will collect( )14. Jim _____ a letter to his parents at 7:30 last night.A. had writtenB. wroteC. would writeD. was writing ( )15. The Smiths _____ in Beijing since two weeks ago.A. stayedB. were stayingC. would stayD. have stayed ( )16. “When _____ you _____ the bike?”“Last Monday.”A. have; boughtB. did; buyC. will; buyD. do; buy( )17. Look! The boy _____English now. A. likes B. liked C. is liking D. was liking( )18. Most students in our class _____ TV twice a week.A. watchB. watchedC. will watchD. are watching( )19. How soon _____ they _____ back from work?A. do; comeB. did; comeC. have; comeD. will; come( )20. “Where _____ you _____ Mr. Li?”“In his office, half an hour ago.”A. will; seeB. did; seeC. have, seenD. do; see( )21. I _____ a new dictionary. Look! It’s very useful.A. boughtB. will buyC. have boughtD. would buy( )22. I won’t watch the movie tonight. I _____ it before.A. will seeB. have seenC. sawD. had seen( )23. Hello! I _____ know you _____ in Chengdu. How long have you been here?A. didn’t; wereB. don’t areC. didn’t; areD. don’t; were ( )24. He _____ a fire and then cooked a meal.A. had madeB. was makingC. madeD. has made( )25. If I _____ time tomorrow, I will go to visit my grandfather.A. haveB. will haveC. would haveD. am having( )26. I’m going to be a doctor when I _____ up.A. growB. will growC. grewD. am growing( )27. The film _____ on for five minutes when I got to the cinema.A. has beenB. had beenC. wasD. is( )28. She _____ dinner when her son came in.A. has cookedB. had cookedC. was cookingD. would cook ( )29. The train _____ when we got to the station. We had to wait for the next one.A. has leftB. had leftC. leftD. was leaving( )30. He said that he _____ to the barber’s tomorrow morning.A. will goB. wentC. is goingD. would go)31. In the last years I _____ a lot of friends.A. have madeB. madeC. will makeD. was making( )32. The boys _____ for about two hours.A. are playing soccerB. have been playing soccerC. were playingD. play soccer( )33. He _____ so quickly that he could win the race.A. is runningB. will runC. ranD. hadrun( )34. He didn’t go there with us because he _____ there before.A. has beenB. had beenC. wentD. wouldgo( )35. I don’t know if he ______ tomorrow. If he _____, I will tell you.A. will come; will comeB. comes; comesC. will come; comesD. comes; will come( )36. When I was young, my mother told me that the sun _____ in the east.A. riseB. risesC. roseD. hadrisen( )37. “_____ you _____ your work?” “Yes. I finished it an hour ago.”A. Did; finishB. Have; finishedC. Will; finishD.Had; finished( )38. Hurry up, or you _____ the early bus.A. will missB. has missedC. would missD. missed ( )39. I _____ Mr. Green while I _____ along the street last Sunday.A. met; walkedB. was meeting; walkedC. met; was walkingD. was meeting; was walking ( )40. Tom is strong and he _____ to school every day.A. walkedB. walksC. will walkD. haswalked( )41. He said that he _____ with Mr. Black at that time.A. talkedB. was talkingC. is talkingD. wouldtalk( )42. We _____ English in this school since we came here.A. have studiedB. studiedC. had studiedD. werestudying( )43. She _____ at home until her mother came back.A. has stayedB. stayedC. had stayedD. willstay( )44. There will be an interesting movie _____ two days.A. forB. inC. afterD. since ( )45. She _____ there until I came back.A. didn’t leaveB. has stayedC. leftD. wasstaying( )46. It has been raining _____ two hours ago.A. untilB. forC. sinceD. by ( )47. His father _____ since he was two years old.A. has diedB. diedC. has deathD. hasbeen dead( )48. The meeting _____ for ten minutes when I got there yesterday.A. has begunB. had begunC. has been onD. hadbeen on( )49. He had collected over 500 stamps _____ he was twelve years old.A. sinceB. forC. untilD. by thetime( )50. I was doing my homework _____ she rang me up last night.A. whenB. whileC. sinceD. before ( )51. “Where is John?” “He _____ the library.”A. has been toB. has gone toC. has been inD. hasbeen at( )52. How long _____ you _____ the computer?A. have; boughtB. did; buyC. have ; hadD. will;buy( )53. She _____ Shanghai for two days.A. leftB. has leftC. will leaveD. hasbeen away from( )54. He didn’t tell me anything about it _____ he left.A. sinceB. untilC. by the timeD. while ( )55. She _____ China since she was five years old.A. has come toB. has arrived atC. has arrived inD. hasbeen in( )56. I had finished my homework _____ I watched TV last night.A. beforeB. afterC. whenD. until ( )57. Miss White has been _____ the music club for 4 years.A. joiningB. joinC. joinedD. in ( )58. What do you think he will _____ ten years?A. be for B. be atC. be toD. be in( )59. There _____ two football games in our school next week.A. is going to beB. will haveC. will beD. is goingto have( )60. They _____ a birthday party next Friday afternoon.A. is going to beB. will beC. will haveD. is goingto have( )61. How long have you ____ the pen?A. kept B. bought C. borrowed D. got( )62. I _____ Mr. Brown since I left Shanghai in 2004.A. have seenB. sawC. haven’t seenD. didn’tsee( )63. You don’t have to describe her. I _____ her several times.A. had metB. have metC. metD. meet ( )64. I _____ a cold for five days. I still can’t get rid of it.A. caughtB. hadC. have caughtD. havehad( )65. What _____ you _____ at nine o’clock that morning?A. are; doingB. did; doC. were; doingD. had;done( )66. What _____ you _____ by nine o’clock that morning?A. are; doingB. did; doC. were; doingD. had;done( )67. The sign _____, “ No Parking!” A. readsB. was readC. is readingD. read( )68. “_____ you _____ your lunch?” “Yes. I _____ it at school.”A. Did; have; have hadB. Have; had; hadC. Did; have; hadD. Have; had; have( )69. Lily _____ for her mother until she _____ home.A. will wait; will comeB. won’t wait; comesC. will wait; comesD. waits; will come( )70. “Mr. Brown is leaving for a trip.” “Really? Where _____ he _____?”A. has; goneB. will; goC. did; goD. does;go( )71. Tom, you _____ the book for two weeks. You have to return it now.A. borrowedB. have borrowedC. keptD. havekept( )72. “Have you mended your shoes?” “Yes. I _____ it twenty minutes ago.”A. have mendedB. mendedC. had mendedD. willmend( )73. Mr. Smith _____ to China last year and _____ in love with her.A. goes; fallsB. went; fellC. went; feltD. hasgone; fell( )74. If you don’t go to the meeting tomorrow, _____.A. he will, tooB. he won’t, eitherC. he does, tooD. hedoesn’t, either( )75. “Shall we go watching the match?” “Sorry, I can’t. I _____ my homework.”A. doB. have doneC. am doingD. did ( )76. The children won’t go hiking if it _____ next Sunday.A. rainB. rainsC. will rainD. israining( )77. “_____you _____ to Japan?” “Yes. I will go there next month.”A. Have; beenB. Have; goneC. Are; goingD. Did; go ( )78. When I got there, the film _____ for five minutes.A. had been onB. had begunC. was beginningD. began ( )79. Don’t open the door until the bus _____.A. will stopB. doesn’t stopC. is stoppingD. stops ( )80. “_____ you _____ to Japan?” “Yes. We went there last year.”A. Have; beenB. Have; goneC. Did; goD. Are; going参考答案：1-5 CBDCB 6-10 ABBAA 11-15 BBADD 16-20 BAADB21-25 CBACA 26-30 ABCBD 31-35 ABCBC 36-40 BBACB41-45 BABBA 46-50 CDDDA 51-55 BCDBD 56-60 ADDCC61-65 ACBDC 66-70 DABCB 71-75 BBBBC 76-80 BCADA。