求现在进行时的语法解释、固定搭配、形式、用法、例句（5句）、练习题（5句）！！！明天就要！！！

Answer 1

现在进行时: 表示正在进行的、发生的动作
通常在句子中有以下的词：now, look, listen.
句子的结构如下： be am
is +动词 ing
are
肯定句：be + doing
否定句：be not + doing
疑问句：Be + 主语 + doing？

如：
肯定句：1. I am listening to the music now.
2. The students are drawing pictures now.
3. Listen! She is singing .
4. Look! Mr Li is riding a bike.
否定句：1.I am not (I’m not)listening to the music now.
2.The students are not(aren’t) drawing pictures now.
疑问句：
1. Listen! Is Amy singing?
Yes,she is.\No, she isn’t.
2. What are they doing?
They are (They’re) swimming.
其中，动词的ing形式有如下方法：
1. 在动词后直接加ing,如: go-going , wash-washing,fly—flying
2. 以不发音字母e结尾 ， 去掉e再加ing,如 ：drive—driving, ride—riding,skate-skating,make-making,have-having,write-writing,take-taking, dive-diving,dance-dancing,come-coming
3.双写双写末尾字母，再加ing,如：swim- swimming,run—running，get—getting,put-putting,set-setting
练习：
1．Mr Zheng (read) a book now.
2. The rabbits (jump) now.
3.. Look ! Tom and John (swim).
4. My brother (make) a kite in his room now.
5. Look! The bus (stop).

Answer 2

现在进行时，即指某时间段内正在进行中的一个动作。在句中一般以BE DOING出现，如果同时存在其他时态，则将BE变为与同时出现的时态吻合的词性。例：
1 I was watering the flowers at that time.
2 When the bell rang, she was taking a shower.
3 At the moment, I was doing my homework.
4 Were you cleaning the classroom at 7 to 8?
5 Just as it was eating the meat, a man came in.
太累了，习题免出

Answer 3

现在进行时，即指某时间段内正在进行中的一个动作。在句中一般以BE
DOING出现，如果同时存在其他时态，则将BE变为与同时出现的时态吻合的词性