一般现在时
一、 定义与讲解
一般现在时:表示经常性的事情,经常性的动作或一般性事实。时间状语:often 经常,usually通常,always 总是,every每个,sometimes 有时,at …在几点钟 once a week 只有在第三人称单数用动词的―三单变化‖,其他用动词的原形。 单三变化:1.多数在动词后+s play — plays like — likes
(1)直接在动词词尾加-s. ask---asks work---works get---gets stay---stays
(2)以字母s, x, ch, sh或o结尾的动词,在词尾直接加-es. watch---watches wish---wishes
fix---fixes do---does go---goes pass---passes(3)以―辅音字母加 - y‖结尾的动词,要先变y为i再加-es.try---tries study---studies cry---cries fly---flies 2.不规则变化: be---- is are have----has 二、一般现在时用法
1. 表示经常性,习惯性,永久性的动作或存在的状态.通常与副词sometimes, often, usually, always, every day (year, month ), once (twice, three times) a day,等时间状语连用。 They usually go to school by bike. I take the medicine three times a day. She helps her mother once a week. Mary’s father is a policeman. There are 50 students in my class.
2. 表示客观真理,科学原理,自然现象,等客观事实或格言,谚语等。
The sun rises in the east and sets in the west every day. Tomorrow is Tuesday. The man who has never been to the Great Wall is not a real man. 三、一般现在时的句子转换:
(1)当句子中有be动词或情态动词时,则把be动词或情态动词(can,could等等)提到主语的前面变成疑问句;在be动词或情态动词后面加not变成否定句.
例:①陈述句:She is a student. 疑问句→ Is she a student? 否定句→ She is not a student. ②陈述句:I can swim. 疑问句→ Can you swim 否定句→ I can not swim. (2当句子中即没有be动词,也没有情态动词时,则在主语前加助动词do (you,以及复数), does(单数she,he,it)变成问句;在主语后谓语动词前加助动词don’t(I,you,以及复数), doesn’t(单数she,he,it)变成否定句,助动词后的动词要变成动词原形。
例:①陈述句:We get up at 7:00 every morning. 疑问句→Do you get up at 7:00 every morning? 否定句→We don’t get up at 7:00 every morning.
②陈述句:She has a little brother. 疑问句→ Does she have a little brother? 否定句→ She doesn’t have a little brother. (一).用动词的适当形式填空
1. She _________(go) to school at seven o’clock. 2. It’s 6 o’clock. They are _________ (eat) supper. 3. He usually ___________ up at 17:00.(get ) 4. She ___________ (live) in Beijing. 5. Amy _________ (be) here just now.
6. _______ (be)there a fly on the table just now? 7. My father __________ (watch) TV every evening . 8. My father _______________ (make) toys these days. 9.?________ Amy _________ (read) English every day
10. Chen Jie sometimes _________(go)to the park with her sister. (二).选择填空
1.I want____homework now. A. doing B. to do C. to do my D. do my 2.It's time______.
A. go to school B. play games C. to go home D. to do my homeworks 3.______go and help her. A. Let's me B. Let's us C. Let's D. Let's to 4.Do they have a new car? Yes,_____.
A .they are B.they have C. they don't D. they do 5.He often _________ supper at 6:00 in the evening. A. have B. has c. is having D. is eating
6. We _____________ any Chinese classes on Friday.
A. are having B. aren’t having C. don’t have D. are have (三)、用括号内动词的适当形式填空。 1. He often _________ (have) dinner at home.
2. Daniel and Tommy _________ (be) in Class One. 3. We _________ (not watch) TV on Monday. 4. Nick_________ (not go) to the zoo on Sunday. 5. they _________ (like) the World Cup?
6. What they often_________ (do) on Saturdays?
7. your parents _________ (read) newspapers every day? 8. The girl _________ (teach) us English on Sundays.
9. She and I _________ (take) a walk together every evening. 10. There _________ (be) some water in the bottle. 11. Mike_________ (like) cooking.
12. They _________ (have) the same hobby.
13. My aunt _________ (look) after her baby carefully. 14. You always _________ (do) your homework well. 15. I _________ (be) ill. I’m staying in bed.
16. She _________ (go) to school from Monday to Friday. 17. Liu Tao _________ (do) not like PE.
18. The child often _________ (watch) TV in the evening.
19. Wang Kai and Wang li_________ (have) eight lessons this term. 20. -What day _________ (be) it today? - It’s Saturday. 1. We often___________(play) in the playgound. 2. He _________(get) up at six o’clock.
3. __________you _________(brush) your teeth every morning. 4. What __________(do) he usually (do) after school?
5. Danny__________(study) English,Chinese,Maths,Science and Art an school. 6. Mike sometimes __________(go) to the park with his sister. 7. At eight at night, she __________(watch) TV with his parents. 8. ________ Mike________(read) English every day?
9. How many lessons_________your classmate________(have) on Monday?
10.What time_________his mother_________(do) the housework? 1. Do you often play football after school? (肯定回答) 2. I have many books. (改为否定句)
3. Gao Shan’s sister likes playing table tennis (改为否定句)
4. She lives in a small town near New York. (改为一般疑问句) 5. I watch TV every day. (改为一般疑问句) 6. David has got a goal. (改为一般疑问句) 7. We have four lessons.(否定句) 8. Nancy doesn’t run fast (肯定句) 9. My dog runs fast. 否定句: 一般疑问句:
10. Mike has two letters for him.一般疑问句: 否定句:
11. I usually (play football )on Friday afternoon.否定句: 一般疑问句: 括号内容提问
12. Su Yang usually washes some clothes on Saturday. 否定句: 一般疑问句: 划线提问:
13. Mingming usually waters the flowers every day 否定句: 一般疑问句: 划线提问
14. Tom does his homework at home. 否定句: 一般疑问句:
划线提一般现在时:表示通常性、规律性、习惯性的状态或者动作(有时间规律)的一种时间状态 在一般现在时中,当主语是第三人称单数时,谓语动词要用第三人称单数形式,即常在动词原形后加-s或-es。但有些同学们对于哪些主语是第三人称单数还不十分清楚,现归纳总结如下: 一、人称代词he, she, it是第三人称单数。如:
He likes watching TV. 他喜欢看电视。 She has lunch at twelve. 她十二点吃午餐。
It looks like a cat. (口诀:I用am,you用are,is用于她他它,单数名词用is,复数名词都用are) 二、单个人名、地名或称呼作主语;是第三人称单数。如: ①Han Mei looks like her mother. 韩梅看起来像她的母亲。
②Beijing is in China. 北京在中国。 ③Uncle Wang often makes cakes. 王叔叔经常做蛋糕。 三、单数可数名词或\单数可数名词\作主语时,是第三人称单数。如: ①A horse is a useful animal. 马是有用的动物。 ②This book is yours. 这本书是你的。
四、不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时,是第三人称单数。如:
①Everyone is here. 大家到齐了。 ②There is something wrong with the watch. 这块手表有毛病。 五、不可数名词作主语时为第三人称单数。如:
①The milk is in the glass. 牛奶在玻璃杯里。 ②The bread is very small. 那面包很小。 六、当数字或字母作主语时,看作第三人称单数。如: ①\luckynumber. \是个吉利数字。 问
一般过去时的讲解 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、last night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 do my homework every day.(用yesterday改写句子) I did my homework yesterday.
I didn’t do my homework yesterday.(否定句)
Did you do your homework yesterday?Yes ,I did. /No, I didn’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 , this morning 时间 + ago , just now , a moment 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 a week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→looked play→played start→started visit→visited pull-pulled, cook-cooked 2.以不发音e结尾的动词,在词尾直接加-d。 live→lived use→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→studied try→tried fly→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→stopped plan→planned stop-stopped prefer→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 last night. 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 she was 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 the room and then went out for a walk. 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.
九年级英语复习
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