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:
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 |
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