(完整版)一般现在时,现在进行时,一般过去时练习题及答案
一般现在时，现在进行时，一般过去时练习题及答案
一、句型转换
1. My English teacher went to the movies with her sister.(改为一般疑问句)
_________ your English teacher ___________ to the movies with her sister?
2.He didn’t have any money for a bike.(改为肯定句) He _________ __________ money for a bike.
3.The man takes the subway to work every day.（改为否定句）The man ______ ______ the subway to work every day.
4. I walk home after school.(改为同义句) I go home _________ _________ after school.
5. It’s time for lunch.(改为同义句) It’s time __________ __________ lunch.
6.Lucy did her homework at home.（改否定句）Lucy ________ _______ her homework at home.
7.He found some meat in the fridge（冰箱）.（变一般疑问句) _______ he _______ _______ meat in the fridge?
8.There was some orange in the cup.（变一般疑问句)
二、用括号内所给动词的适当形式填空
1. Jane often ________ (take) the bus to school. 3. Did you enjoy _______ (go) shopping.
2. —What did you do last Sunday?—I ________(study) for the English test.
4. The boy likes English very much, so he ________ (practice) reading English every morning.
5. Look! Liu Ying _________ (do) her homework.
6. He ______ (play) football very well.
7. Danny ________ (go) to school at 7:10.
8. _____your sister_____(know)English? 9.Her home____ _____ ______(远离)her school.
10.The pot_____(not look) like your pot very much. 11.______she_____(do) the housework every day?
12.Jenny and Danny usually______(play) games in the afternoon .
13. I _________ (have) an exciting party last weekend.
14. _________ she _________(practice) her guitar yesterday? No, she _________.
15. What ________ Tom ________ (do) on Saturday evening?
He ________(watch) TV and __________(read) an interesting book.
16. They all _________(go) to the mountains yesterday morning.
17. She _________(not visit) her aunt last weekend. She ________ (stay) at home and _________(do) some cleaning.
三、选择题
1. He is very tired. He doesn’t want to do _______. A.something B.nothing C.everything D.anything
2. Everyone ______ here last Monday. A.were B.is C. are D. was
3. It’s time ____class. A.for have B. have C. to hav e D. to having
4. He helped his mother clean the rooms and then ____ his homework yesterday afternoon.
A. do
B.doing
C. does
D. did
5. Jenny ____ in an office. Her parents ____in a hospital.
A work; works
B works; work
C work; are working
D is working; work
6. One of the boys_____ a black hat. A have B there is C there are D has
7. Wang Mei ____ music and often ____ to music. A like; listen B likes; listens C like; are listening D liking listen
8. Jenny____ English every evening. A has study B studies C study D studied
9.My father＿＿＿＿＿＿ill yesterday． A． isn't B． aren't C． wasn't D． weren't
10．＿＿＿＿your parents at home last week﹖ A． Is B． Was C． Are D． Were
11. your father at work the day yesterday﹖ A． Was; before B． Is; before C． Was; after D． Is; after 12．—Who was on duty last Friday﹖—＿＿＿． A． I am B． I was C． Yes, I was D． No, I wasn't
答案
一、1.Did, go 2.had, some 3.doesn’t, take 4.on foot 5.to, have 6. didn’t ,do
7.Did,find,any 8.Was there any orange in the cup?
二、1.takes 2.studied 3.going 4. practices 5. is doing 6. plays
7. goes 8. Does know 9. is away from 10. doesn't look 11. Does, do 12. Play
13.had 14.Did,practice,didn’t15.Did,do,watched,read 16.went 17.didn’t,visit, stayed,did
三、1-5 D.D.C.D.B 6-10 D.B.B.C.D 11-12.A.B。
(完整版)一般现在时现在进行时一般过去时专题练习
For personal use only in study and research; not forcommercial use一般现在时专题一、写出下列单词的第三人称单数形式allow_________ fly__________ push___________ do _____________ watch__________ carry__________go___________ wash__________ enjoy___________ guess_____________ play__________miss___________have___________ build__________ cook__________ fix___________ begin__________ press__________二、选择填空1. ( ) Jane usually goes to school_____ bus, but her parents usually______ to work.A. on; goB. by; walkC. by; walks2. ( ) Jane _______ English every day. She must ______ English very much.A. read; readB. reads; readC. read; reads3. ( ) – Jenny often______ pictures in her free time. – Look! She _______pictures in the class. A. is drawing; draw B. draws; is drawing C. is drawing; is drawing4. ( ) He said the sun _____ in the east and _____ in the west.A. rose; setB. rises; sets B. rises;set5. ( ) We often _______ basketball in the playground but yeaterday we _______ soccer.A. plays; playedB. plays; playC. play; played6. ( ) Please turn off the TV. The baby __________. A. slept B. is sleeping C. sleeping7. ( ) Jean _______ in an offcie. Her parents __________ in a hospital.A. works; workB. work; workC. work; works8. ( ) One of the boys _________a black hat. A. have B. there is C. has9. ( ) We will go shopping if it _________ tomorrow.A. won’t rainB. didn’t rainC. doesn’t rain10. ( ) _______ he _______ to the park at 6:30 in the moring? No, he __________A. Does; goes; doesB. Do; go; doesn’tC. Does; go; doesn’t三、用单词的适当形式填空1. I _________(do) my homework every day.2. We __________(fly) kites in the park on Sundays.3. Tom____________(play) the piano every Saturday. But now he ___________(play)4. She ___________(like) swimming. She ___________(swim) in the swimming pool last night.5. His sister usually _________(go) to school at 7:00.6. What is she going to be when she __________(grow) up?四、翻译一下句子。
(完整版)一般现在时,现在进行时,一般过去时练习题及答案(可编辑修改word版)
一般现在时，现在进行时，一般过去时练习题及答案一、句型转换1.My English teacher went to the movies with her sister.(改为一般疑问句)your English teacher to the movies with her sister?2.He didn’t have any money for a bike.(改为肯定句) He money for a bike.3.The man takes the subway to work every day.（改为否定句）The man the subway to work every day.4.I walk home after school.(改为同义句) I go home after school.5.It’s time for lunch.(改为同义句) It’s time lunch.6.Lucy did her homework at home.（改否定句）Lucy her homework at home.7.He found some meat in the fridge（冰箱）.（变一般疑问句) he meat in the fridge?8.There was some orange in the cup.（变一般疑问句)二、用括号内所给动词的适当形式填空1.Jane often (take) the bus to school. 3. Did you enjoy (go) shopping.2.—What did you do last Sunday?—I (study) for the English test.4.The boy likes English very much, so he (practice) reading English every morning.5.Look! Liu Ying (do) her homework.6.He (play) football very well.7. Danny (go) to school at 7:10.8. your sister (know)English? 9.Her home (远离)her school.10.The pot (not look) like your pot very much. 11. she (do) the housework every day?12.Jenny and Danny usually (play) games in the afternoon .13.I (have) an exciting party last weekend.14.she (practice) her guitar yesterday? No, she .15.What Tom (do) on Saturday evening?He (watch) TV and (read) an interesting book.16.They all (go) to the mountains yesterday morning.17.She (not visit) her aunt last weekend. She (stay) at home and (do) some cleaning.三、选择题1.He is very tired. He doesn’t want to do . A.something B.nothing C.everything D.anything2.Everyone here last Monday. A.were B.is C. are D. was3.It’s time class. A.for have B. have C. to have D. to having4.He helped his mother clean the rooms and then his homework yesterday afternoon.A. doB.doingC. doesD. did5.Jenny in an office. Her parents in a hospital.A work; worksB works; workC work; are workingD is working; work6.One of the boys a black hat. A have B there is C there are D has7.Wang Mei music and often to music. A like; listen B likes; listens C like; are listening D liking listen8.Jenny English every evening. A has study B studies C study D studied9.My father＿＿＿＿＿＿ill yesterday．A．isn't B．aren't C．wasn't D．weren't10.＿＿＿＿your parents at home last week﹖A．Is B．Was C．Are D．Were11.your father at work the day yesterday﹖A．Was; before B．Is; before C．Was; after D．Is; after12.—Who was on duty last Friday﹖—＿＿＿．A．I am B．I was C．Yes, I was D．No, I wasn't答案一、1.Did, go 2.had, some 3.doesn’t, take 4.on foot 5.to, have 6. didn’t ,do7. Did,find,any 8. Was there any orange in the cup?二、1.takes 2.studied 3.going 4. practices 5. is doing 6. plays7. goes 8. Does know 9. is away from 10. doesn't look 11. Does, do 12. Play13.had 14. Did, practice, didn’t15. Did,do,watched,read 16.went 17. didn’t,visit, stayed,did三、1-5 D.D.C.D.B 6-10 D.B.B.C.D 11-12.A.B。
一般现在时-现在进行时-一般过去时练习题及答案
一般现在时-现在进行时-一般过去时练习题及答案Light _____much faster than sound.A. travelB. travelsC. to travelD. traveling答案：B思路分析：浏览题干可知句意为“光（传播的速度）比声音（传播的速度）要快得多”。
这是一个客观真理，故用一般现在时。
light作主语，且是第三人称单数，故谓语动词也用第三人称单数形式。
The boys _____ students.A. amB. isC. areD. be答案：C思路分析：根据主语the boys是复数可知谓语动词应用复数形式。
be是动词原形，am对应的主语是I，is对应的主语是第三人称单数，故只有are最合适。
句意为“这些男孩是学生”。
He usually _____early and _____ English in the morning.A. gets up; readB. get up; readsC. get up; readD. gets up; reads思路分析：浏览题干，usually意为“通常”，是一般现在时的标志词；主语he是第三人称单数，故谓语动词也用单数形式；and连接两个并列的动作，故两个动词都用单数形式。
符合题意的只有D项。
句意为“他通常早晨早起读英语”。
She often _____ supper with her grandmother.A. haveB. hasC. is haveD. is has答案：B思路分析：浏览题干和各选项可知句意为“她经常和奶奶一起吃晚饭”。
表示“吃”的have是实义动词，故句中不可再用系动词is，排除C，D两项；主语she是第三人称单数，故谓语动词也用第三人称单数形式has。
The story _____interesting and we _____it very much.A. sounds; are likingB. is sounding; likeC. sounds; likeD. sound; likes答案：C思路分析：浏览各选项可知sound, like是表示感觉的词，常用于一般现在时。
小升初英语一般现在时一般过去时现在进行时综合练习题40题(答案解析)
小升初英语一般现在时一般过去时现在进行时综合练习题40题(答案解析)1. She ______ books every day.A.readB.readsC.is readingD.reading答案解析：B。
A 选项read 是动词原形，一般现在时中，当主语是第三人称单数时，动词要用三单形式；B 选项reads 是read 的三单形式，主语she 是第三人称单数，所以正确；C 选项is reading 是现在进行时；D 选项reading 不能单独作谓语。
2. My brother often ______ football after school.A.playB.playsC.is playingD.playing答案解析：B。
A 选项play 是动词原形，一般现在时中，当主语是第三人称单数时，动词要用三单形式；B 选项plays 是play 的三单形式，主语my brother 是第三人称单数，所以正确；C 选项is playing 是现在进行时；D 选项playing 不能单独作谓语。
3. We ______ TV in the evening.A.watchB.watchesC.are watchingD.watching答案解析：A。
A 选项watch 是动词原形，主语we 是第一人称复数，一般现在时中，第一人称复数作主语，动词用原形；B 选项watches 是三单形式；C 选项are watching 是现在进行时；D 选项watching 不能单独作谓语。
4. My father ______ to work by car.A.goB.goesC.is goingD.going答案解析：B。
A 选项go 是动词原形，一般现在时中，当主语是第三人称单数时，动词要用三单形式；B 选项goes 是go 的三单形式，主语my father 是第三人称单数，所以正确；C 选项is going 是现在进行时；D 选项going 不能单独作谓语。
（完整版）一般现在时,现在进行时,一般过去时练习题及答案
（完整版）一般现在时,现在进行时,一般过去时练习题及答案一般现在时，现在进行时，一般过去时练习题及答案一、句型转换1. My English teacher went to the movies with her sister.(改为一般疑问句)_________ your English teacher ___________ to the movies with her sister?2.He didn’t have any money for a bike.(改为肯定句) He _________ __________ money for a bike.3.The man takes the subway to work every day.（改为否定句）The man ______ ______ the subway to work every day.4. I walk home after school.(改为同义句) I go home _________ _________ after school.5. It’s time for lunch.(改为同义句) It’s time __________ __________ lunch.6.Lucy did her homework at home.（改否定句）Lucy ________ _______ her homework at home.7.He found some meat in the fridge（冰箱）.（变一般疑问句) _______ he _______ _______ meat in the fridge?8.There was some orange in the cup.（变一般疑问句)二、用括号内所给动词的适当形式填空1. Jane often ________ (take) the bus to school. 3. Did you enjoy _______ (go) shopping.2. —What did you do last Sunday?—I ________(study) for the English test.4. The boy likes English very much, so he ________ (practice) reading English every morning.5. Look! Liu Ying _________ (do) her homework.6. He ______ (play) football very well.7. Danny ________ (go) to school at 7:10.8. _____your sister_____(know)English? 9.Her home____ _____ ______(远离)her school.10.The pot_____(not look) like your pot very much.11.______she_____(do) the housework every day?12.Jenny and Danny usually______(play) games in the afternoon .13. I _________ (have) an exciting party last weekend.14. _________ she _________(practice) her guitar yesterday? No, she _________.15. What ________ T om ________ (do) on Saturday evening?He ________(watch) TV and __________(read) an interesting book.16. They all _________(go) to the mountains yesterday morning.17. She _________(not visit) her aunt last weekend. She ________ (stay) at home and _________(do) some cleaning.三、选择题1. He is very tired. He doesn’t want to do _______.A.somethingB.nothingC.everythingD.anything2. Everyone ______ here last Monday. A.were B.is C. are D. was3. It’s time ____class. A.for have B. have C. to hav e D. to having4. He helped his mother clean the rooms and then ____ his homework yesterday afternoon.A. doB.doingC. doesD. did5. Jenny ____ in an office. Her parents ____in a hospital.A work; worksB works; workC work; are workingD is working; work6. One of the boys_____ a black hat. A have B there is C there are D has7. Wang Mei ____ music and often ____ to music. A like; listenB likes; listensC like; are listeningD liking listen8. Jenny____ English every evening. A has study B studies C study D studied9.My father＿＿＿＿＿＿ill yesterday．A．isn't B．aren't C． wasn't D． weren't10．＿＿＿＿your parents at home last week﹖A．Is B． Was C． Are D． Were11. your father at work the day yesterday﹖ A． Was; before B． Is; before C． Was; after D． Is; after 12．—Who was on duty last Friday﹖—＿＿＿． A． I am B． I was C． Yes, I was D． No, I wasn't答案一、1.Did, go 2.had, some 3.doesn’t, take 4.on foot 5.to, have 6. didn’t ,do7.Did,find,any 8.Was there any orange in the cup?二、1.takes 2.studied 3.going 4. practices 5. is doing 6. plays7. goes 8. Does know 9. is away from 10. doesn't look 11. Does, do 12. Play13.had 14.Did,practice,didn’t15.Did,do,watched,read16.went 17.didn’t,visit, s tayed,did三、1-5 D.D.C.D.B 6-10 D.B.B.C.D 11-12.A.B。
(完整版)一般现在时,一般过去时,现在进行时,一般将来时练习
一般现在时、现在进行时、一般将来时、一般过去时专项练习一、用动词的正确形式填空1. I ________ (do) my homework every evening.2. We _______ (fly) kites in the park on Sundays.3. My mother ________ (clean) our room on Sundays.4. Tom _______(play) the piano every Saturday. Now he______ (play).5. She _______(like) swimming. She ______ (swim) this weekend.6. Usually my mother _______ (wash) the dishes after lunch. But my grandma_______ (wash) today.7. Look at the man! He ______ (read) a magazine.8. Look! The plane ________ (fly) over the building.9. Listen! My aunt ________ (sing) in the room.She is a singer. She _____ (like) singing. She_______(have) a music show. She is excited.10. Tom and Mike always ______ (swim) in the river. They _____ (swim) in the swimming pool this Sunday. Look! They ______ (swim).11. What ______ you usually ______ (do) in the evening?I _______ (play) computer games.12. What _______ you _______ (do) now?I _______ (make) a paper plane.13. What _______ he _______ (do)?He ______ (dance).14. What _______ she ______ (do) yesterday?She ______ (visit) her grandparents.15. ______ your mother ______ (read) newspaper in the morning?Yes, She ________ .16. _______ you _______ (like) fishing?No, I ______ . I like ______ (swim),but my brother ______ (like).17. How ______ your father _______ (go) to work every day?He ______ (go) by bike. But it’s cold today. He ______ (take) the No.21 bus,, and he _______ (go) to work by taxi yesterday.18. _______ the monkey _______ (like) climbing trees? Yes, it _______ .19. What _______ your father ______ (do) after lunch? He _______ (read) a comic book. What _____ he _______(do) today? He _______ (clean) the kitchen for my grandma. Look!He (clean).20. ________ you ______ (collect) stamps? Yes. I _______ .________ your brother ______ (collect), too? No, he ________ .二、选择题1. _____ he _____ to the park at 6:30 in the morning? No,he _____ .A. Does; goes; doesB. Does; go; doesn’tC. Does; go; does2. What colour _____ you _____ this bookcase? I _____ it pink.A. are; going to paint; am going to paintB. do; paint; paintC. did; paint; painted3. Tim always _____ a picture at home. He _____ a car now.A. draws; is drawingB. draw; drawC. draws; draw4. She usually _____ her friends. They often _____ tea.A. see; drinkB. sees; drinksC. sees; drink5. He usually _____ the dishes at night, but tonight he _____ clothes.A. wash; washB.washes; is going to washC. is washing; washes6. Mr. Green usually _____ his newspaper in the evening, but he and his wife _____ television yesterday evening.A.reads; watchesB.reads; is going to watchC.reads; watched7. Where are the man and the woman? They _____ near the tree.A. sitB. satC. are sitting8. _____ your penpal _____ diving? No, he _____ .He ______ writing stories.A. Does; like; doesn’t; likesB. Does; likes; doesn’t; likeC. Do; like; don’t; likes9. _____ you _____ fishing yesterday? No, we _____ .A. Does; go; doesn’tB. Did; go; didn’tC. Do; go; don’t10. Open the window, Please. Look! He _____ it.A. opensB. is openningC. is opening11. I usually _____ some milk every day. But I _____ coffee yesterday.A. drink; drankB. is drinking; drinkC. drank; am drinking12. Mr. Green often _____ his newspapers at night. But he _____ an interesting book tonight.A. reads; readsB. reads; readC. reads; is going to read13. The old man _____ playing sports in the park. He _____ morning exercise now.A. likes; is doingB. likes; doesC. like; doing14. What _____ you usually _____ in the evening? I ______ computer games.What _____ you _____ last night? I _____ a book.A. do; do; playB. did; do; playedC. does; do; playsdid; do; read do; do; read do; do; am reading15. Where ______ the boy _____ ? He _____ across the river now.A. does; swim; swimsB. is; swimming; is swimmingD. is; swimming; is swimming16. _____ you _____ to music now? Yes, we _____ .A. Do; listen; doB. Did; listen; didC. Are; listening; are17. Put on you coat, please. OK. I ______ it on.A. am puttingB. am going to putC. put18. _____ you ______ coffee? Yes, I ______ .A. Do; like; doB. Did; like; didC. Are; like; am19. Look! Two cats ______ across the wall.A. runB. runsC. are running20. She _____ tea, but he _____ .A. likes; doesn’t B; like; don’t C. like; doesn’t。
九年级英语时态复习练习题及答案
九年级英语时态复习练习题及答案一、一般现在时1、 We often ＿______ （play) in the playground答案：play解析：often 是一般现在时的标志词，主语 we 是复数，动词用原形。
2、 He ＿______ （get) up at six o'clock every day答案：gets解析：every day 是一般现在时的标志词，主语he 是第三人称单数，动词 get 要加 s 变成 gets。
3、 The earth ＿______ （move) around the sun答案：moves解析：客观真理用一般现在时，主语 the earth 是第三人称单数，动词 move 要加 s 变成 moves。
二、一般过去时1、 I ＿______ （go) to the zoo yesterday答案：went解析：yesterday 是一般过去时的标志词，go 的过去式是 went。
2、 She ＿______ （be) happy last week答案：was解析：last week 是一般过去时的标志词，主语 she 是第三人称单数，be 动词用 was。
3、 They ＿______ （not do) their homework last night答案：didn't do解析：last night 是一般过去时的标志词，否定句要用助动词didn't，后面接动词原形 do。
三、一般将来时1、 We ＿______ （have) a party next week答案：will have ／ are going to have解析：next week 是一般将来时的标志词，可以用 will ＋动词原形或者 be going to ＋动词原形的结构。
2、 He ＿______ （come) back tomorrow答案：will come ／ is going to come解析：tomorrow 是一般将来时的标志词，同理可用 will ＋动词原形或者 be going to ＋动词原形。
小学英语时态练习单选题100道及答案解析
小学英语时态练习单选题100道及答案解析一、一般现在时1. I ______ to school every day.A. goB. goesC. goingD. went答案：A解析：一般现在时中，主语是第一人称I，谓语动词用原形go。
2. She ______ English very well.A. speakB. speaksC. speakingD. spoke答案：B解析：一般现在时，主语she 是第三人称单数，谓语动词speak 要加s，变成speaks。
3. They often ______ football after school.A. playB. playsC. playingD. played答案：A解析：often 是一般现在时的标志词，主语they 是复数，谓语动词用原形play。
4. My father ______ TV in the evening.A. watchB. watchesC. watchingD. watched答案：B解析：主语my father 是第三人称单数，一般现在时谓语动词watch 要加es，变成watches。
5. The sun ______ in the east.A. riseB. risesC. risingD. rose答案：B解析：客观事实用一般现在时，主语the sun 是第三人称单数，rise 要变成rises。
二、现在进行时6. Look! The girls ______ over there.A. danceB. dancesC. are dancingD. danced答案：C解析：Look 是现在进行时的标志词，结构是be + 动词的现在分词，主语the girls 是复数，be 动词用are，dance 的现在分词是dancing。
7. Listen! Someone ______ in the classroom.A. is singingB. singsC. sangD. sing答案：A解析：Listen 是现在进行时的标志词，结构是be + 动词的现在分词，someone 作主语，be 动词用is，sing 的现在分词是singing。
(完整版)新概念一时态及练习题
五种时态讲解及练习题英语的时态(tense ）是一种动词形式，不同的时态用以表示不同的时间与方式。
下面就英语中常见的八种基本时态进行阐述，其它的时态都是在这八种时态的基础上结合而成的。
一、一般现在时：1。
概念：经常、反复发生的动作或行为及现在的某种状况。
2. 时间状语：always， usually, often, sometimes， every week （day， year, month.。
)， once a week, on Sundays，3。
基本结构：动词原形 (如主语为第三人称单数，动词上要加（e )S ）4. 否定形式：am/is/are+not；此时态的谓语动词若为行为动词，则在其前加don ＇t，如主语为第三人称单数，则用doesn ＇t ，通常还原行为动词。
5。
一般疑问句：把be 动词放于句首；用助动词do 提问,如主语为第三人称单数,则用doe s ，同时，还原行为动词.6. 例句：It seldom snows here.He is always ready to help others.Action speaks louder than words。
1。
I like ____________ （swim)。
2.He _________(read) English every day。
3。
We _________(go)to school at seven in the morning。
4.Mike________(go）to school at seven in the morning。
5.My mother________(like） ______（go) shopping.6.I can ________（draw） many beautiful pictures.7。
She_________（make) a model plane。
8。
Do you ________（like）_________（run）?9。
（完整版）初一英语各种时态复习及练习题
（完整版）初一英语各种时态复习及练习题[初一资料] 初一英语各种时态复习及练习题一、一般现在时1. 定义：表示通常性、规律性、习惯性的状态或者动作（有时间规律发生的事件）的一种时间状态，或.表示主语具备的性格、能力和特征。
2. 句型：主语+动词原形+其他注：当主语是第三人称单数时：肯定句主语+动词的第三人称单数+其他。
特别提一点：不可数名词也算作单数处理。
3.常与表示频率的时间状语连用。
如always, usually，often, sometimes，every morning/night/evening/day/week/year等。
4.例句：（1）My mother gives ten Yuan to my sister every week.我妈妈每星期给我妹妹十元钱。
（2）We usually go to school at 7:30. 我们通常7:30上学去。
二、现在进行时1. 定义：表示动作发生的时间是“现在”，动作目前的状态是“正在进行中”。
2. 句型：现在进行时的构成是:主语+be+v.ing〔现在分词〕形式注：在现在时中，be 要根据人称代词和名词的单复数不同，而分别使用am/is/are，即：I am。
/he/she/it 包括单数名词和不可数名词用is。
you/we/they 包括复数名词用are。
注意：be 动词在现在时里算作“助动词”，翻译正在进行时的时候，be不能解释为“是”，否则不通顺。
它只是和现在分词一起构成“进行时”。
3. 常与表示现在的时间状语连用，如now, this week, at this moment 等；或者告诉你一个准确的现在时间，或者用look, listen提醒听者注意正在发生的事。
4. 例句：（1）They are playing basketball now.现在他们正在打篮球。
（2）Listen! She is singing a song.听，她正在唱歌。