四种时态总结
一、一般现在时
标志词：always(总是) usually(通常) often(经常) sometimes(有时) never(从不) every(每一)
一般现在时基本用法： 功能
1.表示事物或人物的特征、状态。 如：The sky is blue.天空是蓝色的。
2.表示经常性或习惯性的动作。 如：I get up at six every day.我每天六点起床。
3.表示客观现实。 如：The earth goes around the sun.地球绕着太阳转。 The earth is round. 构成
1. be动词：主语+be(am,is,are)+其它。 如：I am a boy.我是一个男孩。
2.行为动词：主语+行为动词(+其它)。 如：We study English.我们学习英语。
※当主语是第三人称单数时，一般动词在一般现在时句子中的变化规律：（单三） 1、多数在动词后加s play—plays like—likes ,
2、以s，x，sh，ch，o结尾的动词加es wash–washes catch–catches do–does 3、以辅音字母加y结尾，把y改i再加es fly—flies study—studies 4、以元音字母加y结尾，直接加s buy – buys 5、不规则变化 have—has
二．现在进行时
现在进行时：表示正在进行的、发生的动作 标志词：now, look, listen， It’s+时间 基本结构：
am
be is + 例：I am watching TV.
are
现在分词
动词的-ing形式的变化规律：
1. 直接加-ing watch—watching clean—cleaning
2. 以-y结尾的动词，直接加-ing study—studying play—playing
3. 以不发音的-e结尾的动词，先去-e再加-ing make—making come—coming 4. 末尾只有一个元音字母和一个辅音字母的重读闭音节动词，双写末尾字母，再加-ing
cut—cutting 切 put-- putting 放 swim -- swimming 游泳 run -- running 跑
get -- getting 得到 let -- letting 让 hit -- hitting 打,击,撞 begin -- beginning 开始 sit -- sitting 坐 win --winning 赢 shop --shopping 购物 stop -- stopping 停止 plan -- planning 计划 forget -- forgetting 忘记 step -- stepping 踩,踏 set -- setting 设置
三、一般将来时
表示将来某一时刻的动作或状态，或将来某一段时间内经常的动作或状态。
标志词：tomorrow（明天） the day after tomorrow（后天） next （下一个）
from now on（从现在开始） in the future（将来） soon（不久）等
结构：(1) be(am,is ,are) + going to + 动词原形 (2) will + 动词原形
例：I’m going to study tomorrow. = I will study tomorrow.
I will swim tomorrow afternoon.
He is going to play basketball next week.
注意：will 常简略为 'll，并与主语连写在一起，如：I'll，he'll，it'll，we'll，you'll，they'll
四、一般过去时
表示过去某个时间发生的动作或存在的状态，也表示过去经常或反复发生的动作。
标志词：yesterday（昨天） last（上一个） this morning（今天早上） ago（以前）
before（在…之前） in 2002（在2002年） 等
例：They played football in the playground last week. Nancy went to school early.
动词过去式变化规则：
1．一般在动词末尾加-ed 如：watch-watched, cook-cooked 2．结尾是e加d 如：taste-tasted, used, danced
3．末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed，如： stop-stopped
4．以―辅音字母+y‖结尾的，变y为i， 再加-ed，如：study-studied 5．不规则动词过去式：见附录
附录： 常见不规则动词
练习：用所给动词的适当形式填空。
1．He often______（swim）in the river．
2．Mr Wang is a teacher．He ________（teach）English in a middle school near here． 3．The students ______（listen）to the teacher now． 4．Look! Amy ______（look）after her little brother at home． 5．Lily _______（swim）tomorrow afternoon． 6．There _________（be）some tea in the bottle． 7．Tom _______（get）up early this morning． 8．It ________（be）seven o’clock．
9．Tom _________（play）basketball with his friends yesterday afternoon． 10. The desk ________(have)four legs.
11. She __________ (do) her homework every day. 12. He ________ (live) in Shijiazhuang. 13. Does Danny_________ (see) the apple tree?
14. The girl _______ (look) out of the window and sees many birds in the sky. 15. Jenny runs home and_________ (sit) on the chair.
16. ______ the teacher _______(ask) Bob any questions this morning? 17. Danny ________ (hurt) his nose yesterday.
18. Danny and her mother sometimes ________ (go) for a walk. 19. The children ______(sing) this song in the concert tomorrow evening. 20. Look at the child. ______ he _______(listen) to music?
21. Miss Brown usually ______(have) lunch in the school canteen on weekdays.
22.There _____(be) some candles on the table this morning, but there ______(not be) any now. 23. Mike didn’t ________(finish) his homework yesterday.
24. He ______ ______ _______ _______（buy）a bike the day after tomorrow. 25. He __________ (come) back a month ago. 26. They ___________( plant) flowers in the yard now. 27. Look, the boy_________(put) the rubbish into the bin.
28. __________he__________(clean) the classroom? No, he isn’t. He____________(play). 29. She and I ________ (take) a walk together every evening. 30. The girl ________ (teach) us English on Sundays.