新概念 2A 总复习Part 1 时态一、现在进行时：表示说话时正在做的事情1、基本结构：be+doing （do 代指所有动词原形）肯定句：主语+am/is/are+doing...... My mother is talking with the dentist.否定句：主语+am/is/are not+doing... They aren’t playing games.一般疑问句：Is/Are+主语+doing... Yes,主语+am/is/are... Is she waiting for a bus No,主语+am/is/are not.特别疑问句：特别疑问词+is/are+主语+doing.... Where are they doing their homework2、动词现在分词变化规则：1) 一般情况下,直接在动词后加－ing work ---- working sleep ----- sleeping study ----- studying2) 动词以不发音的－e 结尾,要去－e 加－ing take ----- taking make ----- making dance ----- dancing 3) 重读闭音节的动词,要双写词尾字母,再加－ing cut ----- cutting put ----- putting begin ------ beginning 4) 以－ie 结尾的动词,把变成 y 再加－ing lie ----- lying tie ----- tying die ----- dying二、一般现在时：表示客观事实、真理 常常发生、有规律的事情 1、基本结构： 带有 be 动词: 主语+am/is/are+肯定句：主语+am/is/are+n./adj./prep.短语... The sky is blue. My music book is in the bag.否定句：主语+am/is/are not+n./adj./prep.短语... It isn’t my magazine. The curtain isn’t clean.一般疑问句：Is/Are+主语+n./adj./prep.短语... Yes,主语+am/is/are. Are these gloves yours No,主语+am/is/are not. Is there any water in the jug特别疑问句：特别疑问词+is/are+主语+n./adj./prep.短语.... Which one is right Who is the man in a black hat 肯定句：主语+v.原形/三单+....... They usually live in dry places. It sometimes rains in summer.否定句：主语+don’t /doesn’t +v. 原形 +....... We don’t go to school on weekends. Linda doesn’t walk to school, but she goes by car.一般疑问句：Do/Does+主语+v. 原形 ....... Yes,主语+do/does. Do you always arrive at school very early No, 主语+don’t/doesn’t. Does Lucy have a rest every afternoon特别疑问句：特别疑问词+do/does+主语+v. 原...
