小学现在进行时讲解
一、现在进行时的定义，构成，标志性词语
定义：表示现在或现阶段正在进行或发生的动作或存在的状态。构成：由be(am/is/are)+动词-ing形式构成
标志性词语：
1.现在进行时.通常用“now”.
eg: I am doing my homework now.
2.现在进行时.通常用“look”.
eg: Look! My mother is running!!!
3.现在进行时.通常用“listen”.
eg: Listen! They are reading.
4.现在进行时.通常用“at the (this) moment”
eg: At the (this) moment, he is only weeping.
二、动词现在分词的构成规则
1 一般情况下直接加ing
think---thinking sleep---sleeping study---studying speak---sp eaking say---saying
carry---carrying wake---waking
2 以不发音的字母e结尾的单词,去掉字母e，再加ing
come---coming make---making leave---leaving have---having tak e---taking
3 以重读闭音节（重读闭音节即两个辅音中间夹一个元音并且重读的音节）结尾，呈现“辅，元，辅”结构的动词，双写末尾的辅音字母，再加ing stop---stopping sit---sitting run---running forget---forgetting begin---beginning这类词还有：bigin，cut, get,hit, run, set, sit, spit, stop, swim, beg, drop, fit, nod, dig,for get, regret, rid, 等。
4 以ie结尾的动词，把ie改为y ，再加ing
die---dying lie---lying
三、现在进行时的用法
（1）用来表示说话时正在进行或者发生的动作，例如：
Mother is cooking in the kitchen.妈妈在厨房里煮饭。
What are you looking at? 你在看什么？
（2）用来表示现阶段正在进行的动作（但说话时不一定在进行），例如： Is she writing a novel? 她正在写一本小说吗？
（3）用来表示即将发生的动作，一般是指按计划或者安排好要发生的动作。适用于这种情况的动词主要有：go,come,leave,start,arrive 等。例如: I’m going home in half an hour.我一个半小时内要回家。The train is arriving soon.火车很快就要到达了。
四、现在进行时的句型变化
? 肯定式结构：主语+be+动词-ing形式+其他.例如：
We are running now.
? 否定式结构：主语+be+not+动词-ing形式+其他.例如：
They aren’t doing their homework.
? 一般疑问句式结构：Be+主语+动词-ing形式+其他？例如： Is she having English lesson?
回答：肯定Yes, she is. 否定:No, she isn’t.
? 特殊疑问句式结构：疑问词+be+主语+其他？例如:
What is he doing now?
回答：He is swimming.
五、巩固练习
一. 写出下列动词的现在分词形式
work_______ sing_______ play___ __ study_______ have _______ dance ________ write___ __ take________ run_________ sit_____ ____ shop________ swim__________ lie________
二.按要求改写句子
1. The boy is playing basketball.
否定句：____________________________
一般疑问句：_________________________
肯定回答：______________________否定回答：____________________ __ 对“is playing basketball”提问：__________________________ 对“The boy”提问：__________________________
2. They are singing in the classroom.
否定句：____________________________
一般疑问句：_________________________
肯定回答：____________________否定回答：______________________对“are singing”提问：__________________________
对“in the classroom”提问：__________________________
三. 用现在进行时完成下列句子
1. What _________ you __________ (do)?
2. I _____________ (sing) an English song.
3. What ________ he ____________ (mend)?
4. He ______________ (mend) a car.
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5. ______ you __________ (fly) a kite? Yes, _____________.
6. ______ she ___________ (sit) in the boat?
7. ______ you _____________ (ask) questions?
8. We _______________ (play) games now.
9. What are you _________(do) now? I ___________(eat) bread.
10. It’s nine o’clock. My father_______________(work) in the office.
11. Look, the boy____________(put) the rubbish into the bin.
12. __________he__________(clean) the classroom?
No, he isn’t. He____________(play).
13. Where is Max? He___________(run) on the grass.
14. Listen, who____________(sing) in the music room?
Oh, Mary_____________(sing) there.
四。选择题
1. Who _____ over there now?
A. singing
B. are sing
C. is singing
D. sing
2. It’s eight o’clock. The students _____ an English class.
A. have
B. having
C. is having
D. are having
3. Listen! The baby _____ in the next room.
A. crying
B. cried
C. is crying
D. cries
4. Look! The twins _____ new sweaters.
A. are wearing
B. wearing
C. are wear
D. is wearing
5. Don’t talk here. Grandparents _____.
A. is sleeping
B. are sleeping
C. sleeping
D. sleep
6. Tom is a worker. He ____ in a factory. His sisters _____ i n a hospital.
A. work/ work
B. works/ work
C. work/ works
7. Who _____ English best in your class?
A. speak
B. speaks
C. speaking
8. Mrs. Read _____ the windows every day.
A. is cleaning
B. clean
C. cleans
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9. We _____ music and often _____ to music.
A. like/ listen
B. likes/ listens
C. like/ are listening
10. She _____ up at six in the morning.
A. get
B. gets
C. getting
11. On Sundays he sometimes _____ his clothes
and sometimes _____ some shopping.
A. wash/ do
B. is washing/ is doing
C. washes/ does
12. The twins usually _____ milk and bread for breakfast, but Jim _____
some coffee for it.
A. have/ have
B. have/ has
C. has/ have