小学英语知识
1、小学英语介词at,in与on在时间方面的用法
at表示时间的一点;in表示一个时期;on表示特殊日子。如:
He goes to school at seven o’clock in the morning. 他早晨七点上学。 Can you finish the work in two days. 你能在两天内完成这个工作吗? Linda was born on the second of May. 琳达五月x日出生。
1>. at后常接几点几分,天明,中午,日出,日落,开始等。如:
at five o’clock (五点),at down (黎明),at daybreak (天亮),at sunrise (日出),at noon (中午),at sunset (日落),at midnight (半夜),at the beginning of the month (月初), at that time (那时),at that moment (那会儿),at this time of day (在一天的这个时候)。
2>. in后常接年,月,日期,上午,下午,晚上,白天,季节,世纪等。如: in 20xx(20xx年),in May,20xx (20xx年x月),in the morning (早晨/上午),in the afternoon (下午),in the evening (晚上),in the night (夜晚),in the daytime (白天),in the 21st century (21世纪),in three days (weeks/month)三天(周/个月),in a week (一周),in spring (春季)。
3>. on后常接某日,星期几,某日或某周日的朝夕,节日等。如:
on Sunday (星期日),on a warm morning in April (四月的一个温暖的上午),on a December night (12月的一个夜晚),on that afternoon (那天下午),on the following night (下一个晚上),on Christmas afternoon (圣诞节下午),on October 1,1949 (19xx年x月x日),on New Year’s Day (新年),on New Year’s Eve (除夕),on the morning of the 15th (15日的早上)等。
2、 巧记形容词的排列顺序
当两个以上形容词修饰一个名词,形容词该如何排 列?为什么不能说a black new pen,而是说成a new black pen? 这里面有无规则可循? 如果你记住opshacom这个为帮助记忆而杜撰的词, 就能掌握英语中形容词排列的顺序。 opshacom中p代表opinion,指表示人们观点的形容 词,如beautiful,horrible,lovely,nice等; sh代表shape,指表示形状的形容词,如long,short,round, narrow等; a代表age,指表示年龄、时代的形容词,如old,new,young等; c代表colour,指表示颜色的形容词,如red,black, orange等; o代表origin,指表示国籍、地区的形容词,如british,canadian,german等; m代表material,指表示材料的形容词,如plastic,metal,aluminium等。 英语中这六类形容词连用时就按上述先后顺序排列, 如a nice long new black british plastic pen 当然,实际语言使用中不可能出现这么多形容词连 用的情况。
请根据形容词排列规则完成以下练习:
1>.she has a ___ jacket.(leather,brown,beautiful)
2>.he has a ___ car. (american,long,red)
3>.they live in a ___ house. (old,beautiful)
4>.we have a ___ table. (antique,small,wooden)
5>.he has a ___ jumper. (woollen, lovely, red)
6>.she has a ___ ring. (diamond,new,fabulous)
7>.it was a ___ song.(french,old, lovely)
8>.he owns a ___ dog.(black,horrible,big)
9>.she bought a ___ scarf.(gorgeous,silk,pink)
一、一般现在时主要用于:
1 、表示经常性或习惯性动作。
e.g. It seldom snows here.
2 、表示现在的特征或状态。
e.g. He is always ready to help others.
3 、普遍真理。
e.g. Action speaks louder than words.
4 、剧情图片介绍,背景说明,动作解说。
e.g. (Tom enters the room_and_sits at the table)
Doctor : What`s your trouble, young man?
Tom : I`ve caught a cold, doctor.
5 、时间、条件、让步、方式状语从句表将要发生的动作时。
e.g. Tomorrow we shall go for an outing unless it rains.
与这种时态连用的时间状语常有:
always, often, never, seldom, usually, once, a week, now 等。
二、一般过去时主要用于:
1 、表示过去某个时间发生的动作或情况(包括习惯性的动作或状态) e.g. When did you read the novel?
She often came to help us in those days.
2 、谈到过去的情况时
e.g. I didn`t know you were so busy.
3 、谈到已死人的情况时
e.g. Lei Feng was a great communist fighter.
与这个时态连用的时间状语常有:
yesterday, last night, the other day, two months ago, in 1985, then, just now,
when, after, as soon as 引导的时间状语从句,表示主句动作开始的时间。
三、现在完成时主要用于:
1 、表示到现在为止这一时期中发生的动作或情况,即多次动作的总和。 e.g. We have learnt four English songs this month.
How many times have you read the novel?
For many days we haven`t seen each other.
2 、表示对现在有影响的某一已发生的动作。
e.g. The delegation has left 代表团已经走了(说明现在不在这里) Look, what you have done. 看你干的事。
与这一时态连用的时间状语有:
already, yet, just, ever, never, by now, so far, recently, by the end of this month, since, for 短语,连词 since 引导的时间状语从句。 一般过去时与现在完成时的区别:
一般过去时:重在说明动作在过去发生时的具体情况(时间、地点、方式、对象、细节等)。
现在完成时:只提起已发生的动作(事实)及其影响,不说明动作发生时的具体情况。
cf. Have you had your lunch?
What did you have for lunch?
I have ever been to the Great Wall,_and_I went there last summer with my father.
注:现在完成时表达的动作常具有反复性,故下面一句是错的:
Have you seen the six thirty`s news program?
应改为:
Did you see the six thirty`s news program?
四、现在完成进行时主要用于:表示过去开始的某一动作一直持续到现在,以至延伸到将来,它强调动作延续时间之长久。
e.g. I`ve been writing an article. 我一直在写一篇文章。(还在写) cf. I`ve written an article. 我写了一篇文章。(已写完)
It has been raining these days. 这些天一直在下雨。
五、过去完成时
1 、过去完成时是一个相对时态,表示过去的过去,只有在两个过去发生的动作相比较时才可显示出来。
e.g. As soon as we got to the station, the train had left.
注:主从句表达的动作紧接时,即两动作发生的时间没有明显时间上的悬殊或空档时,主从句都可用一般过去时。
e.g. Where did your brother study before he joined the army? 2 、过去完成时可表示截止过去某一时间动作的总或动作的结束。
e.g. By the end of last month. We had reviewed four books
By eight o`clock, he had finished his homework.
与这个时态连用的时间状语常有:
by 1985, by eight o`clock, by then, by the end of last month, by the time when, when, as soon as, before 等连词引导的时间状语从句,表示主句动作结束的时间。
六、现在进行时主要用于:
1 、表示现在或现阶段正在进行的动作。
e.g. Listen, someone is crying.
What are you doing these days?
2 、代替一般现在时,表示经常性动作或状态,而含有某种感情色彩。 e.g. How are you feeling today?
你今天感觉怎样?(显得亲切)
He is doing well in his lessons.
他的功课很好。(赞扬)
You are always boasting.
你老爱吹牛。(厌烦)
3 、动词 go, come, leave, arrive 等表将要发生的动作时。
e.g. They are leaving for Shanghai.
与这种时态连用的时间状语常有:
now, these days, recently, this week 等。
七、过去进行时主要用于:
表示过去某个时刻或阶段正在进行的动作。
e.g. At that time she was working in a PLA unit.
那时她在解放军某部工作。
What were you doing this time yesterday?
与这个时态连用的时间状语常用:
at nine o`clock, this time last night, these days, at that time 等。 用 when 引导的时间状语从句表示主句的动作正在进行的时间。
e.g. When he came in, I was reading a newspaper.
注:
1 、 while 引导时间状语从句叙述过去的动作时,从句常用过去进行时。 e.g. I read a magazine while I was waiting for the bus.
2 、 when 用作并列连词,意为“这时”,连接两分句时,第一句多用过去进行时。
e.g. I was reading a newspaper when he came in.
一般过去时与过去进行时的区别:
一般过去时:强调过去某一时间开始或完成的动作。
过去进行时:强调过去某一时间正在进行的动作。
试区别下面两句: We were building a reservoir last winter.
去年冬天我们在修建一座水库。(可能尚未建成) We built a reservoir last winter.
去年冬天我们修建了一座水库。(已经建成)
八、一般将来时主要用于:
表示将要发生的动作或情况
e.g. Tom will have a bike of his own.
与这个时态连用的时间状语常用:
tonight, tomorrow, the day after tomorrow, next week, in three hours, two days later 等。
一般将来时态与其它结构表将来情况的区别:
一般将来时态 :主要从时间的角度表将要发生的动作或情况。
be going to 结构 :①表(主观上)打算或准备做某事时。 ②表有发生某事的预兆时。
e.g. They are going to have a competition with us in studies. It is going to rain.
据以上区别,故下面一句是错的:
I am going to be eighteen years old next year.
应改为: I shall be eighteen years old next year.
be about to do sth 结构 :意为“刚要做某事”、“马上要做某事”强调时间之紧迫性。
e.g. We are about to discuss this problem.
我们将马上讨论这个问题。
be to do sth 结构: 表示按计划、安排、规定将实施某事或表示注定会发生某事。
e.g. When is the train to leave.
第二篇:小学英语知识总结
小学英语知识总结
一、名词
1. 不可数名词,如水类,肉类, 饭类等
2.可数名词有单数和复数两种形式。复数的部分规则如下:
a.一般情况下,直接加-s,如:book-books, bag-bags, cat-cats, bed-beds
b.以s. x. sh. ch结尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches c.以o 结尾的名词,有在加es,有的加s。一般有生命的名词,复数加es,没有生命的名
词加s,如:有生命的tomato—tomatoes potata—potatoes;没有生命的:photo--photos
d.以“辅音字母 y”结尾,变y为i, 再加-es,如:family-families, strawberry-strawberries e.以“f或fe”结尾,变f或fe为v, 再加-es,如:knife-knives leaf——leaves f.不规则名词复数:
man-men, woman-women, policeman-policemen, policewoman-policewomen, child-children foot-feet,.tooth-teeth fish-fish, people-people, Chinese-Chinese,
Japanese-Japanese,sheep—sheep , deer—deer
练习题: 写出下列各词的复数形式
I _________he /she /it_________this ___________that ______
watch _______child _______photo ________diary ______
day________ foot________ book_______ dress ________
tooth_______ sheep ______box_______ strawberry _____
peach______ sandwich ______dish_______bus_______
man______ woman_______ deer_______
二.动词时态:
1、一般现在时
一般现在时基本用法介绍
【No. 1】一般现在时的功能
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.我天天六点起床。
3.表示客观现实。如:The earth goes around the sun.地球绕着太阳转。
一般现在时的构成
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。 当主语为第三人称单数(he, she,it)时,要在动词后加"-s"或"-es"。
如:Mary likes Chinese.玛丽喜欢汉语。
【No. 2】一般现在时的变化
1. be动词的变化。
否定句:主语+ be not +其它。
如:He is not a worker.他不是工人。
一般疑问句:Be+ 主语+ 其它。
如:-Are you a student?
-Yes. I am. / No, I'm not.
特殊疑问句:疑问词+一般疑问句。如:Where is my bike?
2.行为动词的变化。
否定句:主语+ don't( doesn't ) +动词原形+ ( 其它)。如:
I don't like bread.
当主语为第三人称单数时,要用doesn't构成否定句。如:
He doesn't often play.
一般疑问句:Do( Does ) +主语+ 动词原形+ 其它?如:
- Do you often play football?
- Yes, I do. / No, I don't.
当主语为第三人称单数时,要用does构成一般疑问句。如:
- Does she go to work by bike?
- Yes, she does. / No, she doesn't.
动词第三人称单数的变化规则:
1.一般情况下,直接加-s,如:cook-cooks, milk-milks
2.以s. x. sh. ch. o结尾,加-es,如:do---does, wash-washes, watch-watches, go-goes
3.以“辅音字母 y”结尾,变y为i, 再加-es,如:study-studies
4. 不规则:have——has
一般现在时用法专练:
1、 写出下列动词的第三人称单数
drink ________ go _______ stay ________ make ________
look _________ have_______ pass_______ carry ____
come________ watch______ plant_______ fly ________
study_______ brush________ do_________ teach_______
wash_______
2、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. Su Hai and Su Yang _______(have) eight lessons this term.
20. -What day _______(be) it today?
- It’s Saturday
2、现在进行时
1).现在进行时表示现在正在进行或发生的动作,也可表示当前一段时间内的活动或现阶
段正在进行的动作。
2).现在进行时的肯定句基本结构为be加 动词ing.
3).现在进行时的否定句在be后加not。
4).现在进行时的一般疑问句把be动词调到句首。
动词加ing的变化规则
1.一般情况下,直接加ing,如:cook-cooking
2.以不发音的e结尾,去e加ing,如:make-making, taste-tasting
3.假如末尾是一个元音字母和一个辅音字母,双写末尾的辅音字母,再加ing,如:run-running,
stop-stopping
现在进行时专项练习:
1、写出下列动词的现在分词:
play________ run__________ swim _________make__________
go_________ like________ write________ _ski___________
read________ have_________ sing ________ dance_________
put_________ see________ buy _________ love____________
live_______ take_________ come ________ get_________
stop_________ sit ________ begin________ shop___________
2、用所给的动词的正确形式填空:
1.The boy __________________ ( draw)a picture now.
2. Listen .Some girls _______________ ( sing)in the classroom .
3. My mother _________________ ( cook )some nice food now.
4. What _____ you ______ ( do ) now?
5. Look . They _______________( have) an English lesson .
6.They ____________(not ,water) the flowers now.
7.Look! the girls ________________(dance )in the classroom .
8.What is our granddaughter doing? She _________(listen ) to music.
9. It’s 5 o’clock now. We _____________(have)supper now
10.______Helen____________(wash )clothes? Yes ,she is .
3、将来时态
1)、概念:表示将要发生的动作或存在的状态及打算、计划或预备做某事。句中一般有以下时间状语:tomorrow, next day(week, day ,month, year?),soon, the day after tomorrow(后天)等。
2)、基本结构:①be going to do; ②will do.
3)、否定句:在be动词(am, is, are)l后加not或情态动词will后加not成won’t。
例如:I’m going to have a picnic this afternoon.→ I’m not going to have a picnic this afternoon.
4)、同义句:be going to = will
I am going to go swimming tomorrow(明天). = I will go swimming tomorrow. 练习:
1. 我打算明天和朋友去野炊。
I_____ _______ _________ have a picnic with my friends.
I ________ have a picnic with my friends.
2.我们将要学习英语
We _____ _______ _________ learn English.
We ________ learn English.
4、一般过去时
1).一般过去时表示过去某个时间发生的动作或存在的状态,常和表示过去的时间状语连
用。一般过去时也表示过去经常或反复发生的动作。
2).Be动词在一般过去时中的变化:
⑴am 和is在一般过去时中变为was。(was not=wasn’t)
⑵are在一般过去时中变为were。(were not=weren’t)
3).句中没有be动词的一般过去时的句子
否定句:didn’t 动词原形,如:Jim didn’t go home yesterday
动词过去式变化规则:
1.一般在动词末尾加-ed,如:work__-worked , cook-cooked
2.结尾是e加d,如:live____lived
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:
am,is-was, are-were, do-did, see-saw, say-said,
give-gave, get-got, go-went, come-came, have-had,
eat-ate, take-took, run-ran, sing-sang, put-put,
make-made, read-read, write-wrote, draw-drew,
drink-drank, swim-swam, sit-sat can__could
buy—bought fly—flew begin—began
过去时练习:
写出下列动词的过去式
is\am_________ plant________ are ________
drink_________ play_______ go________ make ________
does_________ dance________ worry________ ask _____
taste_________ eat__________ put ______
kick_________ pass_______ do ________
1)用be动词的适当形式填空
1. I _______ at school just now.
2. He ________ at the camp last week.
3. We ________ students two years ago.
4. They ________ on the farm a moment ago.
5. Yang Ling ________ eleven years old last year.
6. There ________ an apple on the plate yesterday.
7. There ________ some milk in the fridge on Sunday.
8. The mobile phone _______ on the sofa yesterday evening.
2)用动词的适当形式填空
1. I ______ (watch) a cartoon on Saturday.
2. Her father _______ (read) a newspaper last night.
3. We _________ to zoo yesterday, we _____ to the park. (go)
4. ______ you _______ (visit) your relatives last Spring Festival?
5. ______ he _______ (fly) a kite on Sunday? Yes, he ______.
6. Gao Shan _______ (pull) up carrots last National Day holiday.
7. I ____________ (sweep) the floor yesterday, but my mother ______.
8. What ______ she _______ (find) in the garden last morning? She __________ (find) a beautiful butterfly.