人教版八年級(jí)下冊(cè)現(xiàn)在進(jìn)行時(shí) 過(guò)去進(jìn)行時(shí) 現(xiàn)在完成輔導(dǎo)學(xué)案（無(wú)答案）

1、學(xué)科教師輔導(dǎo)學(xué)案 練習(xí)目標(biāo)1、 現(xiàn)在進(jìn)行時(shí)態(tài)復(fù)習(xí)，鞏固訓(xùn)練；2、 過(guò)去進(jìn)行時(shí)態(tài)復(fù)習(xí)，鞏固訓(xùn)練；3、 現(xiàn)在完成時(shí)態(tài)復(fù)習(xí)，鞏固訓(xùn)練。授課日期及時(shí)段 八年級(jí)英語(yǔ)現(xiàn)在進(jìn)行時(shí)態(tài)復(fù)習(xí)現(xiàn)在進(jìn)行時(shí)態(tài)復(fù)習(xí)一、定義：1、表示說(shuō)話時(shí)正在進(jìn)行的動(dòng)作及行為2、表示現(xiàn)階段正在進(jìn)行的動(dòng)作。二、結(jié)構(gòu): 現(xiàn)在進(jìn)行時(shí)常有三種句型：（1）肯定式：主語(yǔ)bev-ing其它。如： He is mending his bike他正在修自行車。（2）否定式：主語(yǔ)benotv-ing其它。如：       He is not（isn't） mending his bike他沒(méi)在修自行車

2、。（3）疑問(wèn)式：主要分一般疑問(wèn)句和特殊疑問(wèn)句兩種句式。       一般疑問(wèn)句：Be主語(yǔ)v-ing其它？如：                Is he mending his bike？他正在修自行車嗎？ Yes，he is（No，he isn't）       特殊疑問(wèn)句：疑問(wèn)詞be主語(yǔ)v-ing其它？如：What is he doing

3、？他正在干什么？三、何時(shí)用現(xiàn)在進(jìn)行時(shí)？（1）以Look！或Listen！開(kāi)頭的句子提示我們說(shuō)話時(shí)動(dòng)作正在進(jìn)行，應(yīng)用現(xiàn)在進(jìn)行時(shí)。如 ：Look！The children are playing games over thereListen！Who's singing in the classroom？（2）當(dāng)句子中有now（現(xiàn)在）時(shí)，常表示說(shuō)話時(shí)動(dòng)作正在進(jìn)行，這時(shí)也常用現(xiàn)在進(jìn)行時(shí)。如：We are reading English now（3）描述圖片中的人物的動(dòng)作時(shí)常用現(xiàn)在進(jìn)行時(shí)，以示生動(dòng)。如：  Look at the pictureThe girl is swimming（

4、4）表示當(dāng)前一段時(shí)間內(nèi)的活動(dòng)或現(xiàn)階段正在進(jìn)行的動(dòng)作時(shí)常用現(xiàn)在進(jìn)行時(shí)。這時(shí)常與時(shí)間狀語(yǔ)these days，this week等連用。如：    We are playing football these days這些天我們?cè)谔咦闱颉＃?）有時(shí)句子中可能沒(méi)有時(shí)間狀語(yǔ)，但如果表示的是說(shuō)話時(shí)或者現(xiàn)階段正在進(jìn)行的動(dòng)作，就應(yīng)該用現(xiàn)在進(jìn)行時(shí)。如：What's Jim doing？吉姆在干什么？He is cleaning the room他正在打掃房間。注意：是不是所有的動(dòng)作都可以用現(xiàn)在進(jìn)行時(shí)？不是。有一些表示狀態(tài)、結(jié)果、感覺(jué)和感情的動(dòng)詞，如have（有），be（是）

5、，like（喜歡），know（知道），want（想要），think（認(rèn)為），see（看見(jiàn)），hear（聽(tīng)見(jiàn)），forget（忘記）等，一般不用現(xiàn)在進(jìn)行時(shí)。如：I have a new bike now現(xiàn)在我有一輛新的自行車。但不說(shuō)：I'm having a new bike now四、有些動(dòng)詞的現(xiàn)在進(jìn)行時(shí)表示近期按計(jì)劃或安排要進(jìn)行的動(dòng)作。go,come,leave,start,arrive,return,work,sleep,stay,play,do, have,wear, die等。如：She's coming to see me tomorrow. 她明天要來(lái)看我。The

6、football match is starting next Monday.五、另外，有一些表示狀態(tài)和感覺(jué)的動(dòng)詞，一般不用于現(xiàn)在進(jìn)行時(shí)態(tài)be,love,like,hate,want,hope,need,prefer,wish,know,understand,remember,guess,mean,think(以為)，feel, seem, look(看起來(lái)),see, own, hear, find, mind(在意),have(有)等。 現(xiàn)在進(jìn)行時(shí)態(tài)課堂檢測(cè)【現(xiàn)在進(jìn)行時(shí)態(tài)鞏固練習(xí)】寫出下列動(dòng)詞的現(xiàn)在分詞：play_ run_ swim_ make_ go_ study_ writ

7、e_ read_ have_ sing_ dance_ put_ see_ buy_ fly_ take_ eat _ live_ take_ come_ get_ stop_ sit _ begin_ shop_ chat_ rain_ 二、單項(xiàng)選擇1. Listen! They _ in the next room.A. sing B. is singing C. are singing D. were singing2. Lucy is always busy. She _ only five hours every day.A. is sleeping B. will sleep C.

8、 would sleep D. sleeps 3. Its eight oclock. The students _ an English class.A. have B. having C. is having D. are having 4. -Is your father a doctor?-Yes, he is. He _ in Town Hospital.A. has worked B. is working C. works D. worked5. Physics _ much harder than English, I think.A. are B. is C. was D.

9、were6. -Mary, could you help me?-Wait a moment. I _.A. read a book B. did my homework C. was watching TV D. am cooking dinner.7. The final exam _ next Thursday.A. will take place B. take place C. is taking place D. takes place8. -Can your father drive?-Yes, and he usually _ to school.A. drove B. is

10、driving C. drives D. has driven 9. -Excuse me, where is Jim?-Oh, he _ dumplings in the kitchen.A. makes B. will make C. is making D. made10. -Hurry up! Its time to leave.-Ok, _.A. I come B. Ive come C. Ill come D. Im coming11. Dont turn on the TV. Grandma _ now.A. is sleeping B. will sleep C. slept

11、D. sleeps12. -_ you _ a book?-Yes, I am.A. Do; read B. Are; read C. Are; reading D. Are; looking13. Sometimes she _ in the day, but now she is _.A. works; working B. working; work C. work; working D. work; work14. Kate _, and the others _. A. sing; listen B. is singing; is listening C. sing; are lis

12、tening D. is singing; are listening 15. -Tom _ the piano in the room.-Please ask him to come here.A. play B. plays C. played D. is playing三、用括號(hào)內(nèi)所給動(dòng)詞的適當(dāng)形式填空1. Look! The children _(play) football on the playground. They _(play) football every Sunday afternoon.2. Please be quiet! We _( listen ) to the

13、song You and Me.3. -Mrs. Green likes children very much, doesnt she?-Yes, thats true. She _( write ) a childrens book these days.4. How many lessons _ Peter _ (have) on Monday?5. Its fine today. The sun _( shine).6. Tom and Jim _(do) their homework at the moment.7. Tim usually _ (get) up at six oclo

14、ck.8. Be quick! LiLei _(wait) for us at the school gate. 9. Han Meimei _(like) watching TV. She _( watch) TV every evening. But now she _( not watch) TV. She _( get) ready for her final exam.10. Its six oclock. My teacher _(work) in his office.11. -Listen, who _(read) in the classroom? -Maybe Kate _

15、(be).12. Amy _ (write) good English but _(not speak) English well.13. - _ Lily _ (listen) to the teacher? - No, she isnt.14. I _(like) drawing pictures very much. Look! I _ (draw) a big tree.15. The little girl _(look) like her father. Now, she _(look) at the photos of her family.八年級(jí)英語(yǔ)過(guò)去進(jìn)行時(shí)態(tài)復(fù)習(xí)過(guò)去進(jìn)行時(shí)態(tài)

16、復(fù)習(xí)1、 定義及結(jié)構(gòu)1.定義 過(guò)去進(jìn)行時(shí)，是表示過(guò)去某個(gè)具體時(shí)刻正在進(jìn)行的事情或動(dòng)作。2. 結(jié)構(gòu)：be (過(guò)去式）+ 動(dòng)詞ing2、 用法1.過(guò)去進(jìn)行時(shí)的主要用法是描述一件事發(fā)生的背景；一個(gè)長(zhǎng)動(dòng)作發(fā)生的時(shí)候，另一個(gè)短動(dòng)作發(fā)生。常用的時(shí)間狀語(yǔ) when, while例如： My brother fell while he was riding his bicycle . 我哥哥騎自行車的時(shí)候從車上摔下來(lái)。It was raining when they left the station. 他們離開(kāi)車站的時(shí)候天正在下雨。They left the station while it was rain

17、ing . 天正在下雨的時(shí)候他們離開(kāi)了車站。When I got to the top of the mountain, the sun was shining. 當(dāng)我到達(dá)山頂?shù)臅r(shí)候，陽(yáng)光燦爛。2.過(guò)去進(jìn)行時(shí)可以表示在過(guò)去某個(gè)時(shí)間點(diǎn)發(fā)生的事情。時(shí)間點(diǎn)可以用介詞短語(yǔ)、副詞或從句來(lái)表示。常用的時(shí)間狀語(yǔ)：this morning, the whole morning, all day yesterday, from nine to ten last evening, 例如： What was she doing at nine o'clock yesterday? 昨天晚上九點(diǎn)她在做什么？

18、(介詞短語(yǔ)表示時(shí)間點(diǎn)) When I saw him he was decorating his room. 當(dāng)我看見(jiàn)他的時(shí)候他正在裝飾房間。(when從句表示時(shí)間點(diǎn))We were watching TV from seven to nine last night. 昨天晚上七點(diǎn)到九點(diǎn)的時(shí)候我們?cè)诳措娨暋hat was he researching all day last Sunday? 上周日他一整天都在研究什么？3. 在復(fù)合句中，如果主要?jiǎng)幼骱捅尘皠?dòng)作都是延續(xù)的或同時(shí)發(fā)生的，那么主從句的動(dòng)詞都可用過(guò)去進(jìn)行時(shí)。例如：While he was waiting for the bus, h

19、e was reading a newspaper.他邊等車邊看報(bào)。 (兩個(gè)動(dòng)作都是延續(xù)的)He was cleaning his car while I was cooking. 他擦車時(shí)我在做飯。(兩個(gè)動(dòng)作同時(shí)進(jìn)行)4. 通常不能用于過(guò)去進(jìn)行時(shí)的動(dòng)詞主要有：agree, be, believe, belong, care, forget, hate, have(擁有), hear, know, like, love, mean, mind, notice, own, remember, seem, suppose,understand, want, wish等。例如：誤：I was kno

20、wing the answer.正：I knew the answer. 我知道答案。誤：I wasn't understanding him.正：I didn't understand him. 我不明白他的意思。第三部分：與一般過(guò)去式的區(qū)別1一般過(guò)去時(shí)敘述舊事，過(guò)去進(jìn)行時(shí)描述背景。、一般過(guò)去時(shí)）敘述過(guò)去狀態(tài)、動(dòng)作或事件He went to Beijing the other day.（帶具體時(shí)間）表示過(guò)去的習(xí)慣would ,used to與過(guò)去時(shí)would 表間斷性不規(guī)則的習(xí)慣，常帶頻率時(shí)間used to 表一貫性有規(guī)律的習(xí)慣They used to meet and wo

21、uld sometimes exchange one or two words.He smoked a lot two years ago. （過(guò)去行為） would 用于文中不用于句首，只表過(guò)去習(xí)慣。used to 表今昔對(duì)比的含義，敘述習(xí)慣動(dòng)作可與would 換用。When he was a boy , he would often go there . （敘述過(guò)去）She isn't what she used to be. (今昔對(duì)比)表示狀態(tài)時(shí)一般只用used toTom used to be fat /There used to stand a tree there. (狀

22、態(tài))was (were) used to +ving表示“合適于，適應(yīng)于.”He used to work at night . (“習(xí)慣”表經(jīng)常)He was used to working at night. (習(xí)慣表適應(yīng))）表示過(guò)去的經(jīng)歷，平行動(dòng)作，依此事件用一般過(guò)去時(shí)。He sat there and listened to the radio.(依此發(fā)生)）表示客氣委婉的語(yǔ)氣，用于情態(tài)動(dòng)詞，助動(dòng)詞和want , wonder , hope 等How did you like the film? / Could you help me?B. 過(guò)去進(jìn)行時(shí)1）表示在過(guò)去某階段或某一時(shí)刻正在

23、發(fā)生What were you doing at 8:30 last night? (過(guò)去某時(shí)刻正在發(fā)生)2）與always ,often ,usually 等連用表喜愛(ài)，討厭等感情色彩。He was always changing his mind.C. 進(jìn)行時(shí)表某一行為的“片斷”一般時(shí)表示行為的“整體”和存在的狀態(tài)。I was reading the book at that time. (未讀完，“讀”的片段)I read the book yesterday. (已讀完，表整個(gè)“讀”)D、表示在過(guò)去的某段時(shí)間里一直反復(fù)持續(xù)進(jìn)行的動(dòng)作。It was raining all night.H

24、e was writing a letter the whole of afternoon.E、while 時(shí)間狀語(yǔ)從句中用短暫動(dòng)詞時(shí)只能用進(jìn)行時(shí)。例：He broke a chair while he was jumping up and down.F、while 所在主從句動(dòng)作大致持續(xù)相等時(shí)主從句一般都用進(jìn)行時(shí)，但若是持續(xù)動(dòng)詞可都用一般過(guò)去時(shí)，兩個(gè)動(dòng)作一長(zhǎng)一短時(shí)短的用一般時(shí)，長(zhǎng)的用進(jìn)行時(shí)。I was cooking the dinner while he was playing the piano.(平行)I cooked the dinner while he played the pi

25、ano.I saw him while I was walking to the station.補(bǔ)充：英語(yǔ)中有四類動(dòng)詞一般不用進(jìn)行時(shí)（不用現(xiàn)在進(jìn)行時(shí)和過(guò)去進(jìn)行時(shí)）1)表心理狀態(tài)、情感的動(dòng)詞，如love ,hate ,like ,care ,respect ,please ,prefer ,know 等，若用進(jìn)行時(shí)則詞意改變。Im forgetting it . (=beginning to forget )2)表存在、狀態(tài)的動(dòng)詞，如appear ,exist ,lie ,remain ,stand ,seem等3)表感覺(jué)的動(dòng)詞，如see ,hear ,feel ,smell ,sound ,

26、taste等.4)表人的期待，允諾，拒絕，結(jié)束的詞，如accept ,allow ,admit ,decide ,end ,refuse ,permit ,promise等【典型例題】1. Mary _ a dress when she cut her finger.A. made B. is making C. was making D. makes答案C. 割傷手指是已發(fā)生的事情，應(yīng)用過(guò)去時(shí)。同時(shí)，when表時(shí)間的同時(shí)性，“瑪麗在做衣服時(shí)”提供事情發(fā)生的背景，因此用過(guò)去進(jìn)行時(shí)。2 As she _ the newspaper, Granny _ asleep.A. read; was fa

27、lling B. was reading; fell C. was reading; was falling D. read;fell 答案B.句中的as = when,描述一件事發(fā)生的背景時(shí)，用過(guò)去進(jìn)行；一個(gè)長(zhǎng)動(dòng)作發(fā)生的時(shí)候，另一個(gè)短動(dòng)作發(fā)生。句意為 "在她看報(bào)紙時(shí)，奶奶睡著了。"句中的 fell (fall的過(guò)去時(shí))，是系動(dòng)詞，后跟形容詞，如：fall sick。時(shí)間從句的動(dòng)作長(zhǎng)，而“入睡”動(dòng)作短，故前者用過(guò)去進(jìn)行時(shí)，而較短動(dòng)詞用一般過(guò)去時(shí)，選B3. Tom _ into the house when no one _ .A. slipped/was looking B

28、. Had slipped /looked C. slipped/had looked D. was slipping /looked答案A此題先要理解好when ，表“此時(shí)”，說(shuō)明主句中slipped是較短行為，而look是較長(zhǎng)行為的片斷，即湯姆溜進(jìn)房子，此時(shí)沒(méi)人瞧見(jiàn)，故選A為正確。過(guò)去進(jìn)行時(shí)態(tài)課堂檢測(cè)Part 11. What were you doing this time yesterday?I _ on the grass and drawing a picture.A. sit B. sat C. am sitting D. was sitting2. While I _ TV,

29、the bell rang.A. watch B. watched C. am watching D. was watching3. Why didnt you answer my telephone yesterday?Sorry. I _ a bath.A. took B. take C. am taking D. was taking4. While the alien _ a souvenir, the girl called the police.A. was buying B. bought C. buys D. is buying5. I called you at 6 o

30、9;clock yesterday evening, but nobody answered. I'm sorry. I my friend download the movie Kung Fu Panda when the telephone rang,A. would help B. helped C. was helping6. I along the road when I saw Peter. So we stopped and had a chat.A. walked B. was walking C. would walk D. had walked7. What did

31、 the teacher say just now? Sorry. I didnt catch it. I _ something else.A. thinkB. will think C. was thinkingD. had thought8. When I came back yesterday evening, my brother _ his homework. A is doing B. has done C. was doing 9.Mrs White _dinner when her son came home.A. is cooking B. was cooking C. a

32、re cooking D. were cooking 10. Did you see Mr. Black just now?Yes. He _ his car when I met him.A. parked B. was parkingC. parksD. will park11. Amy, I called you yesterday evening, but nobody answered the phone. Oh, I _ a walk with my mother at that time.A. takeB. tookC. am takingD. was taking12.Yest

33、erday evening, I _along the street when I suddenly met my maths teacher.A. walk B. walked C. was walking D. am walking13. Where were you at 7:00 last night? I _ to my mom at home.A. writeB. was writing C. wrote 14. Why didnt you go to play football with us yesterday afternoon? I _my mother with the

34、housework then. A. helped B. was helping C. had helped D. have been helping 15. He _when the UFO arrived. He didnt wake until the UFO disappeared.A. slept B. was sleeping C. was doing homework D. was singing16. I_ my homework at nine o'clock last Sunday morning.A. am doing B. was doing C. do17.

35、I was very angry with Johnhe just_ when I spoke to him.A. isnt listening B. hasnt listened C. didnt listen D. wasnt listening18. I called you at 4:00 yesterday afternoon, but no one answered.Sorry, I _ with my friends at that time.A. swim B. swam C. will swim D. was swimming19. Mr. Li _ us a report

36、on our environment when the earthquake happened in Japan.A. gave B.is giving C. was giving20. Mr. Lee _ to a student when I entered the classroom this morning.- He is very patient _ he is young.A. talking; but B. talks; though C. was talking, though D. talked, however21.Were you at school when he ca

37、me to see you?Yes, I _ a math class.A. hadB. was having C. am havingD. have22. I met a good friend of mine while I on the street.A. walks B. walk C. was walking D. am walking23. I _ when the UFO landed.A. am watching TV B. was watching TV C. have watched TV D. watched TV24. The girl with two cats in

38、 the yard when the earthquake happened.A. was playing B. is playing C. are playing D. were playingPart 21. Paul and I _ tennis yesterday. He did much better than 1.A. play B. will play C. played D. are playing2. A big party was held in NO.18 Middle School last night, the teacher with students _ sing

39、ing and dancing happily at the party.A. is B. was C. are D. were3. Mr. Black is going to marry a girl he _ in Japan last year. A. meets B. metC. has metD. would meet4. He went into his room, the light and began to work.A. has turned on B. turned off C. turned on D. has turned off5What did Mr. Smith

40、do before he came to China?He in a car factoryA. worked Bworks Cis working Dwill work6. Have you ever been to Hong Kong？Yes, I there last month.A. went to B. have been C. went7. This morning I had hardly got to my school when it_ to rain. A. had begun B. was beginning C. began D. begins 8.You have f

41、ound your lost umbrella, havent you?Yes. I _ it behind the door this afternoon.A. have found B. will find C. found9. Tom, along with three other boys, _ seen playing football a moment ago.A. is B. was C. are D. were10. Ten minutes ago, there_ an eraser, a pen and some books on the desk.A. was B. wer

42、e C. is11. How was your trip to Hang Zhou, Jim?Great! We _ to Xixi National Wetland Park.A. go B. am going C. will go D. went12. Do you know who cleaned the blackboard, Tina?- Yes. John _.A. do B. does C. did13. The last time I _ to the cinema was two years ago. A. goB. have gone C. have beenD. went

43、14.   Have you ever been to Canada? Yes, I        there last year with my parents.A. have been      B. have gone      C. went          D. go15. I

44、 called you, but nobody answered. Where _ you?A. is B. are C. was D. were16. -Have you ever been to Shanghai? -Yes. I _ there a few months ago. A have been B. went C. have gone 17.Whats the best present you have ever _?A. received B. receives C. receiving18.Lin Kai, hand in your homework, please.Oh,

45、 sorry. I _ it at home this morning.A. was leaving B. has left C. will leave D. left19. I'm now in New York with my friend Jenny. We_ by plane on Monday.a. arrive B. arrived C. are arriving D. will arrive20. Guess What! The great movie is on in the cinema一Nothing newI_ it with my parents on the

46、first day. A. saw Bsee Cwill see D. have been21. If it had been fine yesterday, we could have watched that air show. But it _ all day. A. has rainedB. had rainedC. rainedD. rains22. When _ your mother _ you that blue dress, Lucy?Sorry, I really cant remember. Maybe two or three weeks ago.A. will; bu

47、yB. does; buy C. did; buy23. Ive got a ticket for the basketball game tonight.Cool！How you it?A. had, got B. did, get C. were, getting D. will, get24. Hello! I'm very glad to see you. When_ you_ here?A. did; arrive B. will; arrive C. have; arrived D. are; arriving25. I have to be off right now.W

48、hat a pity! I you could stay a little longer with us.A. think B. am thinking C. thought26. Tom was so careless that he _ his right arm when he was riding to school.A. hurts B. hurt C. has hurt D. had hurt27. I _ something wrong just now. May 1 use your eraser?Of course. Here you are.A. write B. wrot

49、e C. am writing 八年級(jí)英語(yǔ)現(xiàn)在完成時(shí)態(tài)復(fù)習(xí)一、定義現(xiàn)在完成時(shí)表示到現(xiàn)在為止已經(jīng)完成或仍在持續(xù)的動(dòng)作、狀態(tài)；強(qiáng)調(diào)對(duì)現(xiàn)在的影響或聯(lián)系。二、 結(jié)構(gòu):have/has+p.p.(動(dòng)詞過(guò)去分詞) 接觸一：肯定句式 現(xiàn)在完成時(shí)的肯定句式是“have（has）過(guò)去分詞”。如： We have just finished our homework   She has gone home 注意：1）該句式中的have或has是助動(dòng)詞，has用于第三人稱單數(shù)，其它人稱一律用have。 2）該句式中have（has）和過(guò)去分詞之間可用just插入。 3）把該句式譯成漢語(yǔ)時(shí)，往往用

50、“已經(jīng)”、“剛剛”、“過(guò)”或“了”等。 接觸二：否定句式：現(xiàn)在完成時(shí)的否定句式是“haven't（hasn't）過(guò)去分詞”。如： We havent studied Unit 2 yet   The train hasn't stopped yet接觸三：疑問(wèn)句式 現(xiàn)在完成時(shí)的一般疑問(wèn)句式是把助動(dòng)詞have或has提到主語(yǔ)之前。 Have you read this story book yet？ 特殊疑問(wèn)句及反意疑問(wèn)句結(jié)構(gòu)如下： What have you done with my bike? You've read this story

51、book, haven't you? 注意：1）現(xiàn)在完成時(shí)的一般疑問(wèn)句往往在句末加yet。 2）把現(xiàn)在完成時(shí)的一般疑問(wèn)句譯成漢語(yǔ)時(shí)，往往譯成“過(guò)嗎？”、“已經(jīng)了嗎？”等。 3）其肯定回答用“Yes，have（has）”，否定回答用“No，haven't（hasn't）”，有時(shí)用“No，not yet”或“No，never”。 三、過(guò)去分詞（規(guī)則ed）1）Worked，visited，asked，played，stayed 2）liked lived moved3）stopped dropped robbed planned， preferred 4）carried，wo

52、rried，tried，cried 四、現(xiàn)在完成時(shí)常與一些詞、詞組連用 :1、ever（曾）、never（未曾）、already（已經(jīng)）、yet（仍、還）、just （剛剛）、before（以前)2、for +一段時(shí)間 : for two days 有兩天了3. in the past/last一段時(shí)間 : in the past ten years 在剛過(guò)去的十年里4. since + 過(guò)去某一個(gè)時(shí)間: since 1991 : 自從1991年到現(xiàn)在 一段時(shí)間 + ago since 14 years ago: 自從14年前到現(xiàn)在 一般過(guò)去時(shí)句子: since I was born : 自從我出生到現(xiàn)在5. already, yet, ever, never, just的用法Already 肯定句，強(qiáng)調(diào)已經(jīng)的意,放句中或句末. I have already finished my homework.= I have finished my homework already.yet 否定句、問(wèn)句，表示還沒(méi)，沒(méi)有