一般过去时
一.教学目标:一般过去时
二.教学重难点:一般过去时(用法、动词过去式的变化规则等)
实义动词do一般过去时的讲解
三.教学步骤:
(一)般过去时的概念一般过去时用来表示过去某一时间内发生的动作或存在的状态以及过去习惯性、反复性的动作。谓语动词要用动词的过去式,常和表示过去的时间状语连用,如yesterday昨天、lastnight昨晚、last week上周、last year去年,等。
(二)一般过去时的结构(可分三类不同的结构)
1.Be动词的一般过去时在没有实义动词的句子中使用be动词, am is 的过去式为was;are的过去式为were
肯定句式:主语 + be(was , were) + 其它.
否定句式:主语 + be(was , were) + not +其它.
一般疑问句:Be(was , were) + 主语 + 其它?
注:在这种构成中,be动词有人称和数的变化,即要根据主语选用was /were。Be动词分为单数和复数,was是表示单数,were是表示复数。
2. 实义动词的一般过去时态肯定句要使用动词的过去式,否定句和疑问句要使用助动词do和 does 的过去式did.
肯定句式:主语 + 动词(过去式)+ 其它
否定句式:主语 + didn’t + 动词(原形)+ 其它 【did not= didn’t】
一般疑问句:Did + 主语+ 动词(原形)+ 其它【do , does的过去时均为did】?
注:1.did和didn’t 是构成一般过去时的助动词,其特点是要在其后跟动词的原形。
2.实意动词do的一般过去时
I domy homeworkevery day.(用yesterday改写句子)
I didmy homeworkyesterday.
I didn’t domy homeworkyesterday.(否定句)
Did you doyourhomework yesterday?Yes ,Idid. /No, Ididn’t.(一般疑问句)
3. 情态动词的一般过去时态含有情态动词的一般过去时与含有Be动词的一般过去时,是十分相似,请注意观察。
肯定句式:主语 + 情态动词 + 其它
否定句式:主语 + 情态动词 + not + 其它.
一般疑问句:情态动词 + 主语 + 其它?
注:情态动词的过去式:can→could , may→might , must→must,will-would,should-should。4.特殊疑问句式: 特殊疑问词+be过去式+主语+其他?
特殊疑问词+情态助动词过去式+主语+动词原形+其他?
特殊疑问词+do/does过去式+主语+动词原形+其他?
What was your former name? 你以前叫什么名字?
Why was he late for school last Monday?上星期一他为什么迟到?
What could she do twenty years ago?20年前她能做什么?
(三) 一般过去时的判断标志词一般过去时的判断标志词一般过去时的判断标志词一般过去时的判断标志词 yesterday, the day before yesterday , last + 时间 , thismorning 时间 + ago , just now , amoment ago , in + 过去的时间 ,
注意:一般过去时表示过去经常或反复发生的动作,常和often经常,always总是,once aweek一周一次,等表示频度的时间状语连用
(四)规则动词的过去式
1.一般情况下,在动词原形后面加-ed。look→lookedplay→playedstart→startedvisit→visited pull-pulled,cook-cooked
2.以不发音e结尾的动词,在词尾直接加-d。live→liveduse→used taste-tasted
3.以“辅音字母+ y”结尾的动词,先将 y 改为i ,再加 –ed。study→studiedtry→triedfly→flied
4.以重读闭音节(即辅音+元音+辅音)或r音节结尾,末尾只有一个辅音字母的动词,要先双写这个辅音字母后,再加–ed。 stop→stoppedplan→plannedstop-stoppedprefer→preferred
5.不规则动词的过去式需特殊记忆。 如:am(is)-was,are-were(是), become _became (成为) go-went(走), (买) buy --bought,sell--sold(卖)come-came(来), take-took(拿), have (has)-had(有),begin(开始)--began,bring(拿来)--brought,can(能)--could,catch(捉住)--caught,cut(砍,割)--cut,do/does(做,干)--did,draw(画画,拉)--drew,drink(喝)--drank,drive(驾驶)--drove,eat(吃)--ate,fall(跌倒,落下)--fell,feel(感觉)--felt,fly(飞)--flew,get(获得)--got,give(给)---gave,grow(生长)--grew,keep(保持)--kept,know(知道,认识)--knew,learn(学习)--learnt, leave(离开)--left,let(让)--let, lie(躺,平放)--lay,make(使得,做)--made,may(可以)--might, must(必须)--must,read(读)--read, ride(骑)--rode, ring(鸣铃)--rang,run(跑)--ran, say说)--said, see (看见)--saw, sell(卖)--sold,send(送)--sent,set (放)--set,sing(唱歌)--sang, sit(坐)--sat, sleep(睡觉)--slept, speak(说话)--spoke, spend (花费)--spent,stand (站立)--stood, swim (游泳)--swam,teach(教)--taught, tell(告诉)--told, think(认为)--thought,throw(投掷)--threw, understand(懂得)--understood,wear(穿)--wore,will(将要)--would, win(获胜)--won,(弯曲) bend --bent, blow --blew(吹),选择 choose chose ,
(五)一般过去时的基本用法
① 表示过去某个特定时间发生的动作或存在的状态。
He suddenly fell ill lastnight.他昨晚突然病倒了。
②表示过去的习惯性或经常发生的动作
She went to the cinema once a month when shewas at alked by the riverside. 我在乡下时经常在河边散步。
③叙述过去连续发生的一件件事
She got up early, fetched water, cleaned theroom and then went out for awalk.她早早起床,提水,打扫房间然后出去散步。
(六)课后练习
一般过去时练习题,.请用正确动词形式填空
1.He(live) in Wuxi two years ago.
2. The cat(eat)a bird last night.
3.We(have) a party last Halloween. 4
4.Nancy(pick) up oranges on the farm last week.
5. I(make)a model ship with Mike yesterday.
6. They(play)chess in the classroom last PE lesson.
7. Mymother(cook) a nice food last Spring Festival.
8. The girls(dance)at the party last night.
- 9. I(watch)a cartoon on Saturday last week.
10. ______ you _______ (visit) your relatives last SpringFestival?
11. ______ he _______ (fly) a kite on Sunday? Yes, he______.
12. Gao Shan _______ (put) up the picture lastnight.
13. I ____________ (sweep) the floor yesterday.
- 14. 14. What ______ she _______ (find) in thegarden last morning?
15. Her father _______ (read) a newspaper lastnight.
16. Mike _________________(not go) to bed until 12 o’clock lastnight.
17. I listened but ___________ (hear) nothing.
18. How many people ________ (be) there in your class lastterm?
II. 改错题
1.How is Jane yesterday?_____________________
2.He go to school by bus last week.____________________________
3.He often goes home at 6:00 last month.____________________________
4.I can fly kites seven years ago.______________________________
5.Did you saw him just now.____________________________________
三、按要求变换句型。
1. Frank read an interesting book about history. (一般疑问句)
_______ Frank _______ an interesting bookabout history?
2. He cleaned his room just now.. (划线提问) What________ he_______?
3. Thomas spent RMB 10 on this book. (否定句)
Thomas _______ _______ RMB10 on this book.
4. My family went to the beach last week.(划线提问)
________ ________ ________family _______ last week?
1. I _________ (have) an exciting party last weekend.
2. _________ she _________(practice) her guitar yesterday? No,she _________.
3. What ________ Tom ________ (do) on Saturday evening?
He ________(watch) TV and __________(read) an interestingbook.
4. They all _________(go) to the mountains yesterdaymorning.
5. She _________(not visit) her aunt last weekend.
She ________ (stay) at home and _________(do) some cleaning.
6. When ________ you _________(write) this song? I__________(write) it last year.
7. My friend, Carol, ________(study) for the math test and________(practice) English last night.
8. ________ Mr. Li __________(do) the project on Monday morning?Yes, he _________.
9. How _________(be) Jim's weekend? It _________(be not)bad.
10. ________ (be) your mother a sales assistant last year? No.she __________.