译林版六上英语四种时态比较（增加例句）

六上英语四种时态的比较

一、  概念比较

        一般过去时：表示过去发生过的事情或过去的状态。

        一般现在时：表示现在经常发生的事情或现在的状态。

        现在进行时：表示现在正在发生的事情。

        一般将来时：表示即将发生的事情或将来的状态。

二、  关键词比较

        一般过去时：yesterday, the day before yesterday, last Sunday/week/month/year, two days ago/a week ago/three months ago/long long ago, just now, this morning/afternoon/evening, on Sunday/Saturday, in 1998, once upon a time等。

        一般现在时：sometimes, usually, often, always，every week/year/Sunday, on Sundays/Saturdays, in the morning(s)/afternoon(s)/evening(s), at the weekends, after school等。

        现在进行时：now, look, listen, it’s eight o’clock, she’s in the classroom等。

        一般将来时：tomorrow, the day after tomorrow, soon, next year/week/month, in a few days, in the future等。

三、  句子结构比较

        一般过去时

陈述句（肯定句）：主语+was/were +其它。 eg. I was a student ten years ago.

                 主语+动词过去式+其它。eg. She visited Beijing last year.

陈述句（否定句）：主语+wasn’t/weren’t +其它。eg. They weren’t at school yesterday.

                 主语+助动词didn’t+动词原形+其它。eg. Mike didn’t go to school yesterday.

一般疑问句：Was/Were +主语+其它？ eg. Were you at home this morning?

            助动词Did+主语+动词原形+其它？ eg. Did he watch TV just now?

特殊疑问句：疑问词+was/were+主语+其它？ eg. Where was Nancy three days ago?

            疑问词+助动词did+主语+动词原形+其它？ eg. What did you do last Sunday? / Why did she stay at home yesterday? / When did you go home yesterday?

        一般现在时

陈述句（肯定句）：主语+am/is/are +其它。 eg. I am a student.

                 主语+动词原形或三单形+其它。eg. She often reads English. / We usually go walking in the evening.

陈述句（否定句）：主语+isn’t/am not/aren’t +其它。eg.They aren’t at school every day.

                 主语+助动词don’t或doesn’t+动词原形+其它。eg. My parents don’t like watching TV. / My father doesn’t like cooking.

一般疑问句：Am/Is/Are +主语+其它？  eg. Is Liu Tao your friend?

            助动词Do或Does+主语+动词原形+其它？ eg. Do you usually have lunch at school? / Does Yang Ling go shopping on weekends?

特殊疑问句：疑问词+am/is/are+主语+其它？ eg. How old are you?

            疑问词+助动词do或does+主语+动词原形+其它？  eg. How do you spend your weekends? / How does he spend his weekends?

        现在进行时

陈述句（肯定句）：主语+am/is/are+动词ing形式（现在分词）+其它。

                 eg. The students are having an English lesson now.

陈述句（否定句）：主语+am/is/are+not+动词ing形式（现在分词）+其它。

                 eg. Look, the dog isn’t sitting in front of the door.

一般疑问句： Am/Is/Are+主语+动词ing形式（现在分词）+其它?

             eg. Listen, is Helen singing in the music room?

特殊疑问句：疑问词+ am/is/are+主语+动词ing形式（现在分词）+其它?

           eg. What are they drawing now?

        一般将来时

陈述句（肯定句）：主语+am/is/are going to+动词原形+其它。

                 eg. I’m going to watch a film tomorrow.

陈述句（否定句）：主语+am/is/are + not going to+动词原形+其它。

                 eg. She isn’t going to have a picnic next Sunday.

一般疑问句： Am/Is/Are+主语+going to+动词原形+其它?

             eg. Are your classmates going to play football soon?

特殊疑问句：疑问词+ am/is/are+主语+going to+动词原形+其它?

           eg. When is the teacher going to teach us the song?

注：无论是哪个时态，都有如下原则：

1. 有助动词do, does或did，实意动词（行为动词）用原形。（简略：见助动，用原形）

2. 有情态动词can, could, should, must, might, will, would等，实意动词用原形。

2. 有be动词，要么不能出现实意动词，要么实意动词用ing形式。（简略：be动、实动不同用，要么be动配现分）