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初一英语上册知识点
在年少学习的日子里,相信大家一定都接触过知识点吧!知识点在教育实践中,是指对某一个知识的泛称。你知道哪些知识点是真正对我们有帮助的吗?以下是小编为大家收集的初一英语上册知识点,欢迎大家分享。
初一英语上册知识点 1
一、48个国际音标及26个英文字母的正确书写
要熟练掌握元音和辅音,5个元音字母(a, e, i, o, u),字母的正确占格及单词间距。
二、be动词的用法
be动词有三种变形,分别是:am, is, are。记忆口诀:
“我“用am, “你“用are, is用于“他、她、它“;单数全都用is,复数全部都用are。
三、人称及人称代词的不同形式(主格和宾格)
1、三种人称:第一人称(I, we),第二人称(you, you),第三人称(he, she, it, Maria)。
2、人称代词的主格,即人称代词位于句子主语位置时的形态:I, We, You, You, He, She, It, Maria。
3、人称代词的宾格,即人称代词位于句子宾语位置时的形态:me, us, you, you, him, her, it。
4、形容词性物主代词:my, our, your, your, his, her, its, their。
5、名词性物主代词:mine, ours, yours, yours, his, hers, its, theirs。
6、反身代词:myself, ourselves, yourself, yourselves, himself, herself, itself, themselves。
四、基数词(表示数量多少的词,大致相当于代数里的自然数)
zero, one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty, twenty-one, twenty-two, twenty-three,twenty-four, twenty-five, twenty-six, twenty-seven, twenty-eight, twenty-nine, thirty, forty, fifty, sixty,seventy, eighty, ninety, one hundred,one hundred and one。
五、一般疑问句及特殊疑问句
1、一般疑问句:能用Yes或No来回答的问句。一般疑问句句尾读升调。
2、特殊疑问句:不能用Yes或No来回答的问句。特殊疑问句句尾读降调。
六、可数名词变复数
可数名词变复数时,有规则变化和不规则变化两种。
1、规则变化:
(1)一般情况直接在词尾加“-s “,如:cake-cakes, bag-bags, day-days, face-faces, orange-oranges等;
(2)以s, x, sh, ch结尾的词,要在词尾加“-es “,如:bus-buses, watch-watches, box-boxes等;
(3)以辅音字母加y结尾的词,变y为i再加“-es “,如:baby-babies, country-countries, family-families等;
(4)部分以f (e)结尾的词,变f (e)为“ves “,如:knife-knives, half-halves等;
(5)以o结尾的词,加“-s “或“-es “,如:zoo-zoos, photo-photos, tomato-tomatoes, potato-potatoes等。记忆口诀:除了“英雄“hero外,凡是能吃的,加“-es “,不能吃的加“-s “。
2、不规则变化:
(1)改变单数名词中的元音字母:man-men, woman-women, foot-feet, tooth-teeth等;
(2)单、复同形:sheep-sheep, Chinese-Chinese, Japanese-Japanese等;
(3)其他形式:mouse-mice, child-children等。
七、简单句的成分及主谓一致原则
最基本构成:主语+谓语+宾语,其中谓语由动词来充当。
主谓一致原则,就是句子的谓语要始终与主语保持数量上的一致性。当主语是第三人称单数(简称“三单“)时,谓语动词也要相应变成单数形式;当主语非“三单“时,谓语动词就用原形。实意动词变“三单“的规则如下:
(1)一般动词在词尾加“-s “,如:like-likes, tell-tells, play-plays等;
(2)以字母s, x,ch, sh结尾的动词加“-es “,如:guess-guesses, teach-teaches, watch-watches等;
(3)以o结尾的动词一般加“-es “,如:do-does, go-goes等;
(4)以辅音字母加y结尾的动词,先变y为i,再加“-而是“,如:fly-flies, carry-carries等;
(5)have的三单形式是has。
八、冠词的用法(名词前面必须要有冠词)
冠词分为定冠词(the)和不定冠词(a, an)两种。
1、定冠词the表示“特指“,可译为“这个“、“那个“、“这些“、“那些“。
2、不定冠词a, an用来表明(可数)名词的数量是“一个“。an用于以元音开头(注意不是以元音字母开头)的单词前,a则英语非元音开头的单词前。
3、不定冠词a, an与基数词one的区别是:不定冠词不是刻意强调“数量“,而基数词则强调“数量“。
九、助动词(do, does )的用法
只有实意动词作谓语时才涉及使用助动词。以like为例:
(1)当句子为肯定句时不涉及使用助动词,只涉及“主谓一致“原则。
eg : I like English a lot.
Michael likes Chinese food very much.
(2)当句子为否定句时,要根据主语的人称来决定使用相应的助动词:当主语为“三单“时,要使用does;当主语为“非三单“时,用助动词原形do。例如把下列句子变否定句:
Kangkang likes math.----Kangkang doesnt like math.
They like sports.------They dont like sports.
(3)当句子变疑问句时,同样要根据句子的主语来决定在句首使用Do或Does.例如下列句子变问句:
Michael likes Chinese Food.----Does Michael like Chinese food? Yes, he does./ No, he doesnt.
Jane and Helen like music.----Do Jand and Helen like music? Yes, they do./ No, they dont.
十、名词所有格
1、Kangkangs books;Tom and Helens desk; Anns and Marias bikes;
2、用of表示“......的“,但要从of后往of前翻译:a book of mine(我的一本书)
3、have与of的区别:
have一般表示“主动拥有“,往往用于有生命的人或动物;无生命的物体一般不能“主动拥有“,表示所属关系时要用of。例如:
I have a new bike. She has two big eyes.
a door of the house
十一、初一英语上册知识点之课本中的知识点
1、Unit 1 --Unit 2
(1)问候语:
Good morning/ afternoon/ evening.
How are you?---Just OK, thank you. How are you?---Not bad, thanks.
Hi! Hello!
How do you do?
(2)道别用语:
Nice/ Glad to meet/ see you.(meet用于初次见面,see用于熟人间)
Nice to meet/ see you, too.
Goodbye. Byebye. Bye. See you (later/ tomorrow/ next time)! So long! Good night!
(3)介绍人或者物的'句型:This is...
(4)Excuse me.与Im sorry.的区别:
Excuse me.是要引起对方的注意,而Im sorry.则是向对方道歉。
(5)词组be from = come from
(6)当问句中问到this/ that时,回答要用it;问到these/ those时,要用they来回答。例如:Whats this in English?----Its an eraser.
What are those?----They are books.
(7)对Thanks.的回答:Thats OK./ Youre welcome./ My pleasur.
(8)look the same = have the same looks
give sth. to sb. = give sb. sth.
be like = look like
in the tree/ on the tree (树上结的、长出来的用on,否则用in)
in red(穿着红色的衣服)
in the desk(在空间范围之内)
in English(用英语)
help sb. do sth.
(9)both与all的区别:
both表示“两者都......“;all表示“三者及以上都......“。
2、Unit 3--Unit 4
(1)speak的用法
speak与say不同:speak表示“说“的动作,不表示“说“的内容;say则表示“说“的内容。
speak后面除了能接“语言“外,不能直接接东西,后面加了to则表示“对......说“。
help sb. with sth.(帮助某人做/补x.)
want to do sth.(想要做某事)
would like to do sth.
not...at all(一点都不);Not at all.(没关系/别介意)
like...a lot = like...very much
(2)some和any的区别:
口诀:some用于肯定句,否定、疑问变any。例如:
I have some money.
I dont have any money.
Do you have any money?
(3)have a seat = take a seat(请随便坐)
(4)祈使句(表示命令或请求的句子)
祈使句一般都省略了主语You,所以其否定句直接用Dont开头。例如:
Dont go there!
(5)问职业:
What does sb. do?
What is sb.?
Whats sb.s job?
(6)work与job的区别:
work是未必有报酬的“工作“,例如homework, housework;而job则一定是有报酬的“工作“。
(7)on指在物体的表面,不论这个面是否水平的,例如:
on the desk/ wall/ farm/ playground
(8)in hospital(住院);in the hospital(在医院里)
look after(照料/照顾/照看)
help oneself(请自便/随便吃)
(9)表示“建议“的句型:“做某事如何?“
What about (doing) sth.? (英式英语)
How about (doing) sth.? (美式英语)
Why dont you do sth.? = Why not do sth.?
(10)“吃“一日三餐要用have:have breakfast/ lunch/ supper
have...for breakfast/ lunch/ supper
take ones order
be kind to sb.
(11)try on这个词组可合可分:名词可以放在这个词组的中间或后面,但代词只能放在词组的中间。
(12)在口语中往往用take表示“买“。
(13)how many与how much的区别:
how many +可数名词;how much +不可数名词
(14)What do you think of...?是询问对方对某事物的看法;
How do you like...?是问对方对某事物喜欢的程度。
think about(考虑)
Thank you all the same. (即使对方没能帮上忙,也要礼貌道谢)
Thanks. = Thank you.(thank作为动词,不能单独使用。)
(15)one与it的区别:
当上下文说的是同一种类事物时,任意一个可以用one来代替;如果上下文所说的是同一个事物时则用it。例如:
Ann:I have a yellow bag.
Jane:I have a green one.
Tom:Hey, Mike. Where is your bike?
Mike:Look, its over there.
(16)倒装句
Here you are.
Here it is.
(17)be free (有空/免费)
forget to do sth.(忘了去做某事)
forget doing sth.(忘了做过某事)
Whats up? = Whats wrong with...? = Whats the matter with...?
(18)go + v.-ing结构的含义:为了实现某目的才去的。例如:
go fishing/ boating/ swimming/ shopping等
(19)have to do sth.(非主观因素,强调客观因素,“不得不去做某事“)
must则表示主观愿望
(20)fly a kite = fly kites
be free = have time
(21)句型“该干某事了。“:Its time to do sth. = Its time for sth.
例如:该吃午饭了.
Its time to have lunch. = Its time for lunch.
(22)时间的表述
当分针所指的时间大于0分、小于等于30分钟时,用“分钟“past“小时“。例如:
8:23--twenty-three past eight
当分针所指的时间大于30分钟、小于60分钟时,用“剩余的时间“to“下一个整点“。例如:
8:49--eleven to nine
当然,还可以直接按照小时、分钟去读出时间,例如:
8:23--eight twenty-three; 8:49--eight forty-nine
整点则在数词后加“-oclock“,例如:8:00--eight oclock
在钟点前介词要用at.
初一英语上册知识点 2
1、动词的种类(四类)
系动词如be(is am are);情态动词如can 、may、need;助动词( do does);行为动词如take 、bring、eat、have(has)、like、sell、buy、sale、play、see、find、go、watch、thank、think等
2、动词的第三人称单数(与名词的复数一样)
如eat(eats) take (takes) buy (buys) play (plays) have(has) are (is)
3、动词的时态(一般现在时)
( 1)含有系动词的
I’m a Chinese boy .
She is twelve .
He is Tim’s brother .
Her mother is an English teacher .
含有系动词的句子在变一般疑问句时只将“主语和系动词交换位置”,上面句子变成一般疑问句时分别为
Are you a Chinese boy ?(注意第一人称通常变为第二人称)
Is she twelve ?
Is he Tim’s brother ?
Is her mother an English teacher ?
含有系动词的句子在变否定句时只须“在系动词的后边加上not”,前面的几个了陈述句变否定句分别为
I’m not a Chinese boy.
She isn’t twelve .
He is not Tim’s btother .
Her mother isn’t an English teacher .
(2)含有情态动词的句子( can ),
She can play basketball.
His mother’s cousin can sing many English songs.
含有情态动词的句子在变一般疑问句时只须将“主语和情态动词交换位置”,上面两句变一般疑问句分别为
Can she play basketball ?
Can his mother’s cousin sing many English songs ?
含有情态动词的句子在变否定句时直接在情态动词的后边加上not ,上面两个陈述句变否定句分别为
She can not play basketball .
His mother’s cousin can not sing many English songs .
(3)含有行为动词的句子
We have many friends.
They watch TV at 7 in the evening .
The students take their books to school .
I have lunch at school .
You have a sister .
1含有行为动词的句子在变一般疑问句时要在原句子的前面加do.上面的句子变成一般疑问句分别为
Do you have many friends ?
Do they watch TV at 7 in the evening ?
Do the students take their books to school ?
Do you have lunch at school ?
Do you have a sister ?
2含有行为动词的句子在变否定句时只须在行为动词前加don’t .上述五个陈述句变否定句分别为
We don’t have many friends.
They don’t watch TV at 7 in the evening .
The students don’t take their books to school .
I don’t have lunch at school .
You don’t have a sister .
3含有行为动词的句子,当主语是第三人称单数时,行为动词要加s (或es)如:
She has a red pen .
He has eggs for breakfast .
Her mother buys a skirt for her .
She likes thrillers .
My brother watches TV every evening .
He wants to go to a movie .
含有行为动词的句子,当主语是第三人称单数时,变一般疑问句要“在原句子的前面加上does ,同时行为动词要还原”。上面的句子变成一般疑问句分别为:
Does she have a red pen ?
Does he have eggs for breakfast ?
Does her mother buy a skirt for her ?
Does she like thrillers ?
Does your brother watch TV every evening ?
Does he want to go to a movie ?
含有行为动词的句子,当主语是第三人称单数时,变否定句时“在行为动词前面加does’nt ,同时原行为动词要还原”。上面的句子变否定句分别为:
She doesn’t have a red pen .
He doesn’t have eggs for breakfast .
Her mother doesn’t buy a skirt for her .
She doesn’t like thrillers .
My brother doesn’t watch TV every evening .
He doesn’t want to go to a movie .
初一英语上册知识点 3
1、名词的复数
(1)、一般的直接加s,如desk(desks) 、pen(pens) 、ruler(rulers)
(2)、以x 、s、ch、sh结尾的加es如box(boxes)、class(classes)、watch(watches)等
(3)、以辅音字母加y结尾的要变y为i加es,如family ,comedy,documentary等
(4)、以0结尾的名词,有生命的加es如:tomato(tomatoes) 、potato (potatoes );没有生命的加s,如
photo(photos)、piano(pianos)、zero(zeros)
2、名词所有格在名词的后边加’s ,表示后面的名词属于前面的名词所有,如LiLei’s bag Tom’s desk 、her mother’s brother
3、专用名词的大写
如English、Brown 、Rush 、Sunday 、January 、December、 Beijing Opera
初一英语上册知识点 4
like一词的用法
like用作及物动词,译为“喜欢”。
(1)后接名词或代词,表示喜欢某人或某物。如:
I like the baby very much. 我非常喜欢这个小孩。
(2)后接动名词(v. -ing),表示“喜欢做某事”,着重于习惯、爱好。如:
Tom likes playing football. 汤姆喜欢踢足球。
(3)后接动词不定式(to do ),表示“偶尔地喜欢做某事”,着重于某次具体的行为。如:
I like reading, but I like to watch TV this evening. 我喜欢读书,但我今晚想看电视。
句子单数变复数,注意以下五要素
(1)主格人称代词要变成相应的复数主格人称代词,即I→we, you→you,she,he,it→ they。
如:She is a girl. →They are girls.
(2)am,is要变为are。如:
I’m a student. →We are students.
(3)不定冠词a,an要去掉。如:
He is a boy. →They are boys.
(4)普通单数名词要变为复数形式。如:
It is an apple. →They are apples.
(5)指示代词this,that要变为these,those。如:
This is a box. →These are boxes.
英语日期的表示法
英语中月份和星期名称都是专有名词,它们的首字母必须大写,并且前面无需用冠词。
用英语表示日期,其顺序为月+日+年,日和年之间需用逗号隔开。如:August 2nd,2003(2003年8月2日)。也可以用日+月+年来表示。如:10th May,2003(2003年5月10日)英语日期前介词的使用:若指在哪一年或哪一月,则用介词in,若具体到某一天,则需用介词on。
时间的表达法
(1) 直读式,即直接读出时间数字
7: 05 seven five 8:16 eight sixteen
(2) 过、差式,即几点差几分,几点过几分。(以30分为分界线)
1:25 twenty-five past one 2:30 half past two
3:43 seventeen to four 4:38 twenty-two to five
(3)12小时制
6:00 a.m. 上午6点 8:20 p.m. 下午8点20分
(4)24小时制
13:00 13点钟 22:15 22点15分
(5)15分可用quarter
4:15 a quarter past four 5:45 a quarter to six
(6)时间前通常用at.
at 5 o’clock at 7:30 p.m.
want用法
(1)想干什么用want to do sth
They want to join the sports club. 他们想加入运动俱乐部。
(2)第三人称单数作主语,want要作变化
①He wants to play basketball.
②Li Xia wants to play the piano.
(3)变疑问句,否定句要借助助动词do或does.
①-Do you want to play soccer ball ? -Yes , I do . / No , I don’t.
②-Does he want to go home by bus ? -Yes , he does . / No , he doesn’t.
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