1、Alvin英语语法强化练习现在进行时1.定义:现在进行时表示正在发生或进行的动作。结构:be (am, is, are)+动词现在分词形式(简写:be +动词-ing) A、肯定句主语+be (am, is, are)+现在分词,如: I am reading English.我正在读英语。He is writing.他正在写字。 B、一般疑问句 Be(Am, Is, Are)+主语+现在分词? 如:Are you singing?你正在唱歌吗?C、否定句主语+be (am, is, are)+not+现在分词I am notdo
2、ing my homework.我不在做作业。 2.关键词:(1) now 、at the moment 此时此刻(四年级才会学到) (2) 句前有提示词look 、listen 3.动词-ing的构成规则 (1)一般情况下,直接加ing,如:cook-cooking (2)以不发音的e结尾,去e加ing,如:make-making, taste-tasting (3)如果末尾是一个元音字母和一个辅音字母,双写末尾的辅音字母,再加ing,如:run-running, stop-stopping (4) 以ie 结尾的动词,先把
5、_____ draw_______ listen_______ begin _______ dance_______ watch_______ sleep_______ see_______ have _______ 二.用所给词的适当形式填空。 1.Look ! The boy (read) books. 2.The girls_________(have) breakfast now. 3. — he (clean)
6、 the blackboard? — No, he isn’t. 4.Tom (play) football on the playground at the moment . 5.Listen! They (sing) in the muisc room. 三.汉译英。 1.我们正在看电视。We TV. 2.Tom 在图书馆看书。 Tom books in the library. 3.康康在操
7、场上打篮球。 Kangkang basketball . 4.他此刻正在睡觉。He is sleeping . 5.玛利亚在做什么?What Marianow? 6.你在做作业吗?Youyour homework ? 四.完成下列现在进行时的句子 1. The students _____ ______ (listen) to the teacher now. 2. Li Lei______ ________ (watch) TV
8、 now. 3. She____ _______ (look) at a nice picture now. 4. Look! The boys______ ________ (play) basketball. 5. Listen