确定正确的时态
1.根据时间状语确定时态.时间状语与时态有着密切的关系.
a. I ________ (write) now. b. I ______(lose) my pen yesterday.
c. We ___________ (study) English for two years.
2.根据上下文来确定时态
有些句子没有明显的时间状语,又不能用时态呼应规则来对照,这时就可以根据上下文内容来判断时间关系,确定正确时态. A.Where are the twins? B.They ______ (go) to visit Uncle Wang.
3.根据主从句的关系来确定时态. 4.根据语言习惯来确定时态
*1.come,go,leave 等趋向性动词的进行时可用来表示即将发生的动作.
*2.永恒的真理和客观存在的状态用一般现在时.
*3.祈使句中,或在情态动词,助动词后,谓语动词用原形
Don’t _____ (read)in the sun , will you? You’d better _____ (stay)at home since it’s raining outside.
注意所填动词的语态
Today both basketball and volleyball _________(play) in many countries.
确定动词的形式
1. be busy,what about等后用动词的-ing 形式. 2.在介词后一般应用动词的-ing 形式.
3.在 keep,enjoy,finish,mind 等动词后采用动词的--ing 形式.
4.在动词 decide,hope,wish,hate 等动词后应用动词不定式作宾语,而在ask, tell,want,teach 之后则用动词不定式的复合结构,即 “ask sb. to do sth.”的形式
5.在see,hear,watch,make,let等后面作宾语补足语的动词不定式应省略动词不定式符号“ to”, 但在被动句中, 应添上"to".
6.在 It‘s time(for sb.)to do sth. It’s kind/nice/good of sb. to do sth.
It takes sb. some time to do sth. 的句型中, 动词不定式短语作句子真正的主语.
7.疑问代词/副词 (why 除外) + to do sth. 结构,可在句中作主语, 表语和宾语.
练习题：
1.The Great Green Wall will stop the wind from ________(blow) the earth away.
2.Mr Smith kept on _____ (ask) the players to remember-----TEAMWORK
3.Alice didn’t hear what the teacher said just now,so she doesn’t know how ____ (do) the problem.
4.The policeman asked the old granny to put down her heavy box and let him ______ (carry) it for her.
5.用help,happen,listen,have,ask,be,plant,miss,leave,look的适当形式填空:
(1).WangHai is a good comrade.He always does his best ________others.
(2).Dig the hole big enough,or the trees can’t ___________well .
(3).It’s time for class.Let’s stop _______to the teacher.
(4).Her face turned red when she _______ to sing a song for all of us.
(5).She is older than Mary but ________much younger.
(6).--I can’t find my keys.--Maybe you ___________ them at home.
(7).We waited in the next room while they ____________a meeting.
(8).Hurry up.You __________the train if you don’t.
思考题：
用 send,show,turn,cost,write,fly,get,stop,see,do,hear,go 的适当形式填空
1.____ you ___ each other since you left school ten years ago?
2.What ___they ___at 8:00 yesterday evening.
3.The Smiths are getting ready ___to Australia for their holdiay.
4.The beautiful jacket___too much , doesn’t it?
5.Lucy and Lily were playing cards when they ___ a loud knock at the door.
6.The radio says the rain ___later on.
7.The boy ___to hospital as soon as the traffic accident happened.
8.Today films___in English everywhere in the world.
9.It’s summer now.The days___longer and the nights shorter.
10.Mother ___ to Shanghai and she’ll be back in a week or so.
