小学四年级英语语法（5）
概要：ng?Yes， you are.No， you are not.Are we working?Yes， we/ you are.No， we/ you aren’t.Are you working?Yes， I am.No， I am not.Yes， we are.No， we are not.Is he/she it working ?Yes， he/she/it is.No， he/she/it is not.Are they working?Yes， they are.No， they are not.三、 现在分词的构成1. 一般在动词原形末尾加-ing。stay --- staying do --- doing listen --- listening2. 以不发音的字母e 结尾的动词，先去掉e，再加-ing。make --- making ride --- riding give --- giving3. 以一个辅音字母结尾的重读闭音节词，先双写这个辅音字母，再加-ing。put --- putting sit --- sitting run --- running4. 以ie 为重读音节结尾的单词，先去掉e，把i 变为y，再加 –i
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第五章 现在进行时态
一、 现在进行时的定义
现在进行时是表示在现在某一时刻或某段时间正在进行的动作的时态。
二、 现在进行时的构成
现在进行时由“系动词(am，is ， are) + 现在分词(动词加-ing形式)”
构成。现在以动词work为例，对现在进行时的肯定句、否定句、疑问句及简略答语列表说明：
肯 定 句否 定 句
I am working.I am not working.
You are working.You are not working.
He/She/It is working.He/She/It is not working.
We/You/They are working.We/You/They are not working.
疑 问 句简 略 答 语
Am I working?Yes， you are.
No， you are not.
Are we working?Yes， we/ you are.
No， we/ you aren’t.
Are you working?Yes， I am.
No， I am not.
Yes， we are.
No， we are not.
Is he/she it working ?Yes， he/she/it is.
No， he/she/it is not.
Are they working?Yes， they are.
No， they are not.
三、 现在分词的构成
1. 一般在动词原形末尾加-ing。
stay --- staying do --- doing listen --- listening
2. 以不发音的字母e 结尾的动词，先去掉e，再加-ing。
make --- making ride --- riding give --- giving
3. 以一个辅音字母结尾的重读闭音节词，先双写这个辅音字母，再加-ing。
put --- putting sit --- sitting run --- running
4. 以ie 为重读音节结尾的单词，先去掉e，把i 变为y，再加 –ing。
lie --- lying die --- dying
四、 现在进行时的用法
1. 表示现在或说话时正在进行的动作，常和下列时间状语连用：now， at this moment， at present， these days (years)， this term … 有时也与look ， listen 等连用。
例句：Look， what are the monkeys eating?
看，那些猴子在吃什么?
2. 表示当前一直或反复在进行的动作或难以终止的动作。
例句：They are running and jumping all the time.
他们一直在跑啊跳啊。
现在进行时态专项练习
一、 写出下列动词的现在分词形式
stay __________
do __________
listen __________
suffer __________
refuse __________
close __________
operate _________
die _________work ________
spend _________
look _________
make __________
put __________
sit __________
run __________
tie __________take _________
give _________
ride _________
please _________
win _________
begin _________
open _________
lie _________
二、 用所给动词的适当形式填空
1. Mary and Lucy are ________ (dance) now.
2. Listen! Someone is _______ (play) the piano in the next room.
3. He is __________ (sweep) the floor at the moment.
4. Look ! The cat ________ ________ (eat) the fish on the table.
5. A: ______ you _______ (study) French ?
B: Yes ， I am.
6. She often ____________ (dance) after school.
7. My father and mother ______ ______ (swim) in the pond.
8. My sister is ________ (fly) a kite in the garden.
9. We are __________ (watch) TV now.
10. Be quiet ! The baby _____ ______ (sleep) now.
三、 改错
1. We are cleanning our classroom. ______________________________
2. She is sing in the next room. ______________________________
3. What am you doing? ______________________________
4. Mary is comeing back from Beijing.______________________________
5. He often flying kites on Sundays. ______________________________
6. They is reading books now. ______________________________
7. My brother is plays the guitar now. _______________________________
8. Sally is danceing in the room. _______________________________
9. I watching TV at home now. ________________________________
10. Do you listening the radio now? ________________________________
四、 英汉互译
1. 他正在教室里做作业。
______________________________________________
2. We are reading English now.
______________________________________________
3. Peter 和Billy 正在操场上(in the playground)打篮球。
______________________________________________
4. Look ! A bird is flying in the sky.