小学英语语法解析:现在进行时知识及练习
笑料,成语对话剧,跟孩子玩玩吧!
1)构成
现在进行时由助动词be的人称形式加动词的现在分词构成。它的肯定式,否定式及疑问式的结构如下:
肯定式否定式疑问式
I am working now.I am not working now.Am I working now?
You are working now.
He (She) is working now.
We (You, They) are working now.You are not working now.
He (She) is not working now.
We (You, They) are not working now.Are you working now?
Is (he, she) working now?
Are you (we, they) working now?
2)用法
a.现在进行时表示说话时谓语的动作正在进行。
Who are you waiting for? 你在等谁?
He knows that we are helping him now. 他知道我们现在正在帮助他 。
b.在现阶段正在进行的动作,但不一定说话时动作正在进行。
The students are working on the farm there days. 这些天学生们正在农场劳动。
c.有些动词的进行时态还可用来表示将来时。这类动词有go, come, leave, arrive, move,die等。
He is coming soon. 他不久就要来了。
Mary is arriving here at 4 o/clock this afternoon. 玛丽今天下午四点到达这里。
练习
(一)句型转换
(一)将下列句子分别变成否定句,一般疑问句,并对划线部分提问
1 He’s doing homework in his room.
2 It’s running after a dog.
3 They are shopping in the supermarket.
4 I am watching TV.
(二)填空
一、空一词
1 I’m waiting for a bus.(否定)
I ______ for a bus.
2 I am taking photos.(一般疑问句)
______ photos?
3 It’s cloudy today.(划线提问)
__ the weather today?
4 She is cooking in the kitchen. (划线提问)
__ she __in the kitchen?
5 It’s raining. (划线提问)
___ the weather __?
二、用所给词的正确形式填空。
1 It’s __(snow)hard now.
2 I __(watch)TV while my sister is doing her homework.
3 They __(get)ready for the exam(考试)these days.
4 Look, it __(rain) heavily.
5 Listen, someone __(play) the piano next room while others __(sing).
三、单项选择
1. Myfather often ______ TV at home after dinner.
A. watch B. watches C. is watching D. does watch
2. Where does your mother study English? She ____ in an evening school.
A. studies B. studying C. study D. is studying
3. My little brother wants _____ a soldier when he grows up.
A. to do B. is C. to be D. are
4. Look! My uncle ______ computer games over there.
A. is B. playing C. plays D. is playing
5. Some of my friends _____ in the river now.
A. are swimming B. swim C. is swimming D. are swim