英语七年级教案5篇

时间:2022-12-15 作者:betray 备课教案

教案在制订的过程中,你们一定要注意逻辑思路清晰,无论是什么学科的老师,在教学前都要写一篇教案,下面是范文社小编为您分享的英语七年级教案5篇,感谢您的参阅。

英语七年级教案5篇

英语七年级教案篇1

一、学生情况分析及对策

本学期担任七年级的英语课,绝大多数学生入校前没有学过英语或接触过英语,他们只认识部分字母,更严重的问题是他们很容易把小学时学习语文拼音的读音和英语字母的读音混淆在一起,学习困难多,大部分学生没有明确的学习目的,学习自觉性较差,相应的学习习惯也差。不过由于多数学生是初步接触英语,所以学生学习有很强的新鲜感,学习的热情和主动性高涨,学习英语也存在一定的优势。针对种种情况,在本期的英语教学中,一方面应加强基础知识的讲解和基本技能的训练,让学生掌握词汇、语法、句型等基础知识和听、说、读、写等基本技能,为进一步学习英语打下坚实的基础;另一方面,又要采取多种措施,以游戏教学法为主,注意培养学生对英语的兴趣;让学生掌握记忆语音、单词、阅读和写作等英语学习技巧,培养良好的学习习惯和自主探索,合作探究能力。充分调动学生的学习积极性和主动性。教学上采取任务型教学,运用灵活多变的方法,实现学生语言运用能力的迁移和拓展。尊重理解学生,与学生一起分享学习中的苦与乐。使每一位学生都能在学习中取得很大成绩,有所进步。

二、教材分析

新课标七年级上册共12个单元。全书采取任务型语言教学模式,融汇话题、交际功能和语言结构,形成了一套循序渐进的生活化的学习程序。每个单元都列出明确的语言目标,主要的功能项目与语法结构,需要掌握的基本词汇,并分为

a、b两部分。a部分是基本的语言内容,b部分是知识的扩展和综合的语言运用。每个单元还有self check部分,供学生自我检测本单元所学的语言知识之用。它采用“语言的输入——学生的消化吸收——学生的语言输出”为主线编排的。通过确定language goal,采用听、说、读、写,自我检测等手段,有效提高语言习得者的学习效率,有利于习得者的语言产出,体现了以学生为主体的思想。

三、教学目标要求

starter unit1.good morning .

starter unit 2.what’s this in english?

starter unit 3.what color is it?

unit1.my name’s gina .

unit2.is this your pencil?

unit3.this is my sister.

unit4.wherre is my backpack?

unit5.do you have a soccer ball?

unit6.do you like bananas?

unit7.how much are these pants?

unit8.when is your birthday?

unit9.do you want to go to a movie?

unit10.can you play the guitar?

unit11.what time do you go to school?

unit12.what’s your favorite subject?

四、教学重难点

1.present tense to be ;what question; poeive adjectives my, your; his, her.

2.demonstratives this, that; what question; yes/no questions and short answers; ho-w do you spell pen? p-e-n.

3.present progreive tense; how questions ; plural nouns and singural nouns.

4.where questions; prepositions on, in, under; subject pronoun they.

5.ask and answer questions about ownership; make suggestions.

6.how much questions .

7.when questions,and how old questions.

8.can questions.

五、教学目的

培养学生对英语的学习兴趣和积极性,形成有效的学习策略,有效提高学习效率,注重培养学生的听、说、读、写的能力,使学生初步获得运用英语的能力,达到语言运用能力的迁移和拓展,同时了解一些西方文化,能够知道西方文化与中国文化存在的一些不同之处,转化自己的思维,能够初步运用西方人的思维方式去思考问题。

六、教学措施和方法

措施:1.培养学习兴趣,引导学生掌握正确的学习方法和策略,提高学习效率;2.发挥学生主体和教师主导作用:3.用良好的师生关系,协调课堂气氛,培养学生开口说英语的勇气和信心;4.小组合作学习,注意发挥学生的主观能动性;5.引导学生实现语言的迁移,加强日常生活中英语口语的运用;6.鼓励学生自主探索,合用探究,共同提高。

方法:任务型教学:教师提出指令,学生规范操作。听说领先,读写跟上。综合训练,扎实双基。

七、教学计划安排。

本期每周6课时,预计十八个教学周。安排如下:

第1周: starter unit1

第二周:starter unit2

第三周:starter unit3

第4周:unit 1 unit1 my name is gina

可渗透的法制教育有\n

第十三条:经营者销售、收购商品和提供服务,应当按照政府价格主管部门的规定明码标价,注明商品的品名、产地、规格、等级、计价单位、价格或者服务的项目、收费标准等有关情况。经营者不得在标价之外加价出售商品,不得收取任何未标明的费用。

第十四条:经营者不得有下列不正当价格行为:

??、互相串通,操纵市场价格,损害其他经营者或者消费者合法权益; ㈡、在依法降价处理鲜活商品、季度性商品、积压商品等商品外,为了排挤竞争对手或者独占市场,以低于成本的价格倾销,扰乱正常的生产经营秩序,损害国家利益或者其 他经营者合法权益;

??、捏造、散步涨价信息,哄抬价格,推动商品价格过高上涨的;

??、利用虚假的或者使人误解的价格手段,诱骗消费者或者其他经营者与其

进行交易;

??、提供相同商品或者服务,对具有同等交易条件的其他经营者实行价格歧视;

??、采取抬高等级或者压低等级手段收购、销售商品或者提供服务,变相提高或者压低价格;

??、违反法律、法规的规定牟取暴利;

??、法律、行政法规禁止的其他不正当价格行为。

第5周:unit 2

第6周:unit 3

第7周:unit 4

第8周:unit5

第9周:期中考试

第10周:unit 6

第11周:review of unit1--- 6

第12周:unit 7 how much are there pants?

第13周:unit 8

第14周:unit9

第15周:unit10

第16周:unit11

第17周 :unit 12

第18周:复习迎接期末考试

英语七年级教案篇2

unit 6 do you like bananas ?

section b 2b部分

教学目标:1.what do you eat/like for breakfast?句式;

2.同位语、宾语从句复习;

3.i like...,but i don’t like...句式运用。

教学过程:1.通过问题导入阅读主题:what is healthy food? what do you eat for breakfast/lunch/dinner?do you eat healthy food?

2.短语汇集:sports star 体育明星 volleyball star 排球明星eating habits 饮食习惯really adv.确实、真地one last question 最后一个问题 after dinner 晚饭后

want to 想要 want to be 想要变得

3.sports star eats well!

sports star eats well!means sports star eats healthy food.

4.david asks the volleyball star,cindy smith,about her eating habits.

the volleyball star,cindy smith 同位语

about 介词 关于

eating habits 饮食习惯

5.what do you like for breakfast?你早餐喜欢什么?练习:1.breakfast/lunch/dinner 替换练习

2.like换为eat 练习

6.i love fruit.i think it’s healthy.我喜欢水果。我认为水果很健康。

i think+宾语从句

7.i don’t like bananas.but i like oranges and apples.我不喜欢香蕉,但是我喜欢橘子和苹果。

8.what about lunch?午餐呢?

相当于what do you like for lunch?

比较:what about与how about

10.i really like it.我很喜欢(沙拉)。

really 副词 强调程度。

i really hate english.我真的讨厌英语。

11.they are not healthy.它们不健康。

主系表结构。练习:我很健康。

12.i don’t want to be fat.我不想变胖。

want+动词不定式(to+动词原形) 想要......练习:1.我想变胖。

2.我想变好。

英语七年级教案篇3

初一英语外研版(上)教案 module 8 choosing presents

一、学习目标: 1.单词和短语:

card, party, present, would, always, great, cake, never, special, eat, give, sing, happy, secret, cd, cinema, concert, magazine, scarf, silk, shirt, t-shirt, choose, e_ercise, wear, e_pensive, clothes, shoes, spend, money, film, song, match, weekend, at weekends, dear, hear, hear from, afraid

2.交际用语:

1)—would you like to come to my birthday party? —yes, i’d like to.when is it? 2)great! 3)it’s a secret.3.重点句子:

1) daming always gets birthday presents! 2) she often goes to the cinema.3) what do you usually do at a chinese birthday party? 4) we sometimes give birthday cards.5) my mother never makes a birthday cake.

二、重点及难点:

1.频度副词的使用及在句中的位置。 2.动词第三人称单数形式。

三、教学设计: unit 2 she often goes to concerts.Ⅰteaching model reading and writing.

Ⅱteaching method communicative approach Ⅲteaching aims

1.to get information from the reading material about choosing birthday presents.2.to write a description of one’s partner.3.to get to know compound nouns.Ⅳteaching objectives

key vocabulary: cd, cinema, concert, magazine, scarf, silk, shirt, t-shirt, choose, e_ercise, wear, e_pensive, clothes, shoes, spend, money, film, song, match, weekend, at weekends Ⅴteaching aids recorder, ohp, video Ⅵteaching steps step 1 warming-up 1.review the te_t of unit 1.

2.show some pictures, ask the students to look at the pictures, then talk something about the pictures. 3.introduce the new words.4.read the new words.step 2 practice 1.look at the pictures in activity 1.

2.read through the list of presents and have the students repeat them after you chorally and individually.3.match the words with the pictures.

4.check with a partner.

5.call back the answers from the whole cla.keys:

1.a concert ticket

2.a magazine

3.a silk shirt 4.a bo_ of chocolate

5.a t-shirt 6.a cd 7.a scarf 8.a cinema ticket

9.a football step 3 reading.1.play the recording.2.ask the students to read through the paage.3.match the people with what they like doing.4.check with a partner.5.call back the answers from the whole cla.keys: 1.c 2.b 3.d 4.a 5.e

6.choose presents from the pictures in activities 1 for them.7.check with a partner.8.call back the answers from the whole cla.keys:

1.t-shirt 2.a silk dre, a scarf, and a bo_ of chocolate

3.a magazine and a cinema ticket 4.a cd, a concert ticket 5.football 9.complete the paage with the correct form of the words from the bo_.10.check with a partner.11.call back the answers from the whole cla.keys: 1.spends

2.money

3.silk

4.e_pensive 5.concert 6.weekends

7.matches

8.choose step 4 writing and speaking.

a.write these sentences with ’ (apostrophe).1.read through the sentences.2.write these sentences with ’ (apostrophe).3.check with a partner.4.call back the answers from the whole cla.b.make a list of things you like and do.1.ask the students to make their lists individually.2.you may care to suggest they write five things they like and five things they do.

c.work in pairs.1.ask the students to talk about things they like and do . 2.write a description of their partner.step 5 important and difficult points.she has got 11 silk scarves, 20 shirts and a lot of shoes.在英语中,有些名词表示由两部分构成的东西。这些名词常常只用复数形式。做主语时谓语动词要用复数,表示数量时常与“数词+ pair(s) + of”搭配。 如:

shoes鞋

trousers 裤子

glaes 眼镜

gloves手套

shorts短裤

sciors剪??

chopsticks筷子

that pair of trousers is tony’s. 那条裤子是托尼的。 sciors are used to cut things. 剪刀是用来剪东西的。 step 6 do e_ercises: a、单词拼写:

1.i have two ______(双)of new shoes.2.the clothes are very nice.i don’t know which one to ______(选择).3.i have two______(票).one is for my mother, the other is for my sister.4.how much is this ____________(杂志)? 5.how much do you _________(花费) on these presents? 6.please give me a _______(音乐会) ticket.7.he’ll buy two _____(盒子) of cookies for his son.8.this is a _______(丝绸) shirt.9.i don’t know those ________(歌手).10.my aunt sells ___________(衬衫).answers: 1.pairs 2.choose 3.tickets 4.magazine 5.spend

6.concert 7.bo_es 8.silk 9.singers 10 .shirts

b、翻译下列句子:

1.他喜欢阅读,但不喜欢去看电影。

__________________________________________________ 2.她从末去看足球赛。

__________________________________________________ 3.他既不喜欢打蓝球,也不喜欢踢足球。

__________________________________________________ 4.我妹妹经常去听音乐会,并且常买些她喜欢的歌手的唱片。 __________________________________________________ answers: 1.he likes reading, but he doesn’t like to go to the cinema.2.she never goes to the football match.3.he doesn’t like playing basketball or playing football.

4.my sister often goes to concerts and she usually buys cds by her favourite singers.

英语七年级教案篇4

一、teaching aims教学目标

1. 能用所学知识阅读文章。

2. 能理解文章内容,回答问题。

3. 能够理解文章细节内容。

4. 能够运用所学内容介绍自己的上学路线。

二、 language points语言点

词汇:

1) 名词n. river, village, bridge, boat, ropeway, year, villager, dream

2) 形容词 adj. afraid, true, many

3) 动词 v. cross, leave

4)短语 between … and …, come true

2. 句型:it’s not easy to cross the river on a ropeway.

there is no bridge.

you want to know how …

三、情感态度价值观目标:

了解东西方国家出行方式的不同,以及不同的交通规则,教育学生注意交通安全, 加深对交通知识的了解。倡导自觉遵守交通法规及礼貌,构建和谐的人际关系。了解交通的发展,培养创新精神。

四、教学过程:

(一)lead-in

t:boys and girls,could you tell me how do you get to school every day?

ss:yes.

s1:i ride my bike to school .

s2: i get to school by bus.

t:there are so many types of transportation!

do you think it is easy to get to school?

ss:yes.

t:but it’s very difficult for some students to get to school.do you want to know something about that?

ss;yes.

t:let’s come to 2a.

2a look at the picture and title below.guess what the passage is about.

(结合图片并展示答案:it’s about how students go to school.)

(二)presentation

present some key words ,phrases and sentences of the passage to help students understand the main idea of the passage better:river, boat, go on a rope way.

t: how do people usually cross a river?

how does the boy liangliang go cross the river to school?

it is his dream to have a bridge, can his dream come true?

now let’s read the passage of 2b.

(三)reading

fast reading: how does liangliang go to school every day?

careful reading: read the passage and answer the questions.

how do the students in the village go to school?

why do they go to school like this?

does the boy like his school? why?

what is the villagers dream? do you think their dream can come true? why or why not?(多媒体呈现答案)

(四language points

1. crossing the river to school

cross是动词,“穿越,越过”,主要指“横穿”。

还可以作名词,意为“十字形,叉形符号”。

across既可以作介词,也可以作副词。

crossing 是名词,“渡口,交叉点”。

2. for many students,it is easy to get to school.

it is +adj.+to do sth. “做某事是.......”

3. there is a very big river between their school and the village.

between ...and... “在....和...之间”,连接两个并列的成分。

between/among

(1) between 用于两者之间。

(2) among 用于三个或三个以上的人或物的“中间”。

4. but he is not afraid.

afraid: “害怕的,畏惧的”。

(1)be afraid of sth. 害怕某事/某物

(2)be afraid to do sth. 害怕做某事

(3)be afraid of doing sth. 唯恐做某事,指担心或担忧做某事会引起某种后果。

(4)be afraid + that从句,恐怕....

(5)为某件已经发生或可能发生的事表示歉意或者作出否定判断,相当于sorry.

5. many of the students and villagers never leave the village.

leave主要用法归纳如下:

a. 离开; 脱离

the train will leave at six tomorrow morning.

b. 把……留在; 留下

leave the child at home. 把小孩留在家里。

c. 遗忘; 丢下

i left my notebook in the dormitory. 我把笔记本落在宿舍里了。

d. 使……处于(某种状态),后面常接宾语补足语

leave the door open.

6. leave for+地点,“动身去某地”

he left for the station a few minutes ago.

7. must /have to

must多表示主观需要或责任感的驱使有必要或有义务去做某事,多译为“必须”,

have to多表示客观存在的环境所限,即客观要求(无奈)而为之,多译为“不得不干某事”。

i must clean the room because there are too dirty.

i have to do my homework now.

8. it takes sb some money/time to do sth.花费某人多少时间/钱做某事

sb pay some money for sth 某人为某物花费多少钱

sb spend some time/money on sth 某人在做某事或某物上花费时间/钱

sb spend some time/ money (in) doing sth

sth cost sb some money 某物花费某人多少钱

(五)complete the following passage without looking at 2b.

crossing the river to school

how do you_____to school? do you walk or ____a bike ?do you go_____bus or by train ?for many students, it is_____to get to school. but for students in one small village in china, it is____. there is a very big river _____their school and village .there is no bridge and the river______too quickly for boats. so these students go on a ropeway to _____the river to school.

one 11-year-old boy, liangliang, _____the river every school day. but he is not _____. “i love to____with my classmates, and i _____my teacher .he’s----a father to me.”

many of the students and village never ______the village. it is their______to have a bridge. can their dream______true?

(六)fill in the blanks

2c read the passage again .complete the sentences with words from the passage.

for the students in the village ,it is_________to get to school.

they have to cross a very ___river between their school and the village.

they cannot go by boat because the river runs too___.

it is not easy to cross the river on a ropeway ,but the boy is not__.

the students and villagers want to have a bridge .can their dream come_______?

(七) 3a

read the e-mail from your pen pal tom is the us. fill in the blanks with the word in the box.

kilometers get to takes walk boring leave

hi there,

how are you? thanks for your last e-mail.

you want to know how i_______school, right? well, i usually _____my home at about 8:00 and______to the bus stop .the school bus usually comes at about8:15.my school is about 20_______from my home. it ___about40minutes to get there by bus .the bus ride is never _______because i always talk to my classmates.

what about you? how do you get to school?

英语七年级教案篇5

starter unit2 what’s this in english? 第1课时section1a-2e 【学习目标】语言目标:字母i—r;辨认物品;拼写单词 1.七个表示物体的单词的熟练掌握。(汉语意思写出来) map orange jacket key quilt pen ruler 确认物体的句型(写出意思): 问:what is this in english? 答:it's /a /an/ map/ orange/ jacket/ key/ pen/ ruler/ quilt.3.区分a和an的用法(读书上87页:冠词用法)。 【预习指导】自我预习

一、扫清障碍

试着用按英语中音标拼读出starterunit21a的单词(在书上第94页)。

二、课本预习

温故知新1.按照字母顺序正确默写上单元学过的八个字母的大小写。

2.小组合作用英语完成对话。 1)熟识朋友见面的问候语和应答。 ——hello, frank! ——hi, cindy! how are you? ——i'm fine / ok, thanks.2)一天见面打招呼的用语。 ---good morning, helen!---,bob! ---good , eric!---good afternoon, grace! ---good evening, helen!---,dale!: ---hi, alice!---hi, cindy! ---hello, frank!---hello, dale! 【课内学习】

一、教材处理:自主互助学习

1.看图认一认1a中认识的字母,并把它写下来。小组讨论答案,教师巡回检查。 2.看图认物品,努力用英语说出认识的物品,小组比一比,哪一个小组认识的物品多。

二、组内探讨

1)看图片或者用实物小组做对话练习。 师生备注

2)听1a录音,指出听到的物品。 3)用图中物品,双人自由问答并表演。 what's this in english? it's a/an…

4)观察区分a和an的用法。

?语法要点归纳】以单词读音为准,a用在发音的_______音前面,an用在发音的_______音前面。 e_planation

一、this是指示代词,意为“这;这个”,指近处或距说话人近的人或事物。 that意为“那;那个”,指远处或距说话人远的人或事物。例如: this is a ruler.that is a key.

二、in english意为“用英语”,其中in是介词,表示“用语言、声音、方式等”。如: in chinese用汉语in japanese用日语 what’s this in chinese?这个用汉语怎么说?

三、冠词a与an的用法

冠词a和an是一种虚词,只用在单数可数名词前,表示“一”的意思。a用在以辅音音素开头的单词之前,an用在以元音音素开头的单词之前。这里的元音音素和辅音音素是指读音,而不是指字母。如: a pen/pen/一支钢笔/p/为辅音音素 an apple/?'?pl/一个苹果/?/为元音音素

四、what’s this in english?这个用英语怎么说?

句型what’s this in english?意为“这个用英语怎么说?”用来询问某物,回答时要用“itis/it’sa(n)+名词”,其中it用来指代this或that。what’s=what is,意为“是什么”。英语中用来提问的特殊疑问句总是放在句子的开头, 这一点与汉语不同,同学们要特别注意英语的语序。例如: —what’s this in english? 这个用英语怎么说? —it’s a jacket.它是一件夹克衫。

—what’s that in english? 那个用英语怎么说? —it’s an egg.那是一只鸡蛋。

五、【辨析】字母/音标/音素

英语字母就如同我们汉语中的笔画一样,是拼写单词的组成元素。 音素是英语语音的最小单位。

把音素记录下来的符号叫音标,通常写在//或[]里。 【口诀】

冠词a, an两种帽,单数名词常需要; 辅音单数a提前,元音单数an优先。

?学习成果展示】(满分50分) 完成时间15分钟

一、正确朗读字母。(5分) n n r r ii o o m m p p j j l l k k q q

二、将下列字母按字母表顺序排列并抄写在四线格上。(18分) 1)mhaikcdejnporbfglq

2)c d a h j i m g r o l n q e k p b f

三、写出他们的邻居。(6分)

________cc__________,________jj__________,________ff_________,________mm_________________oo________, ________hh_________

四、写出下列字母相应的大写或小写形式。(3分)

,1).k、m、o、r、i_______________.2).j、i、n、q、o___________________.

九、单项选择。(18分)

()1.what'sthisinenglish?it's__________.a.orange b.an orange c.a orange ()2.what'sthis_____________?it'sapen.a.in english b.for english c.english ()3.__________this?it'sanapple.a.what 're b.what c.what's ()4.what'sthis?___________________.a.this’ s a quilt b .it's a quilt c.i'm a quilt ()5.hello,eric!_________,dale! a .hello b. sit down c.i'm ok ()6.howareyou,helen?____________.a.fine, thank you.b.good afternoon c.i'm ok.【总结反思】在本节课中你还有什么不明白的问题,还有什么没有掌握的知识,请记录下来,找机会询问同学或老师。

starter unit2 what’s this in english? 第2课时section3a—4d 【学习目标】语言目标:字母i—r;辨认物品;拼写单词 1.掌握下列重点单词(查出):spell______ __,please_________ 2.掌握下列重点句子:(写出意思) ——what's this in english?——it’s a key.

——spell it, please.——k-e-y.

3.四会大、小写字母a a- --r r.【预习指导】自我预习

一、扫清障碍

试着用按英语中音标拼读出starterunit23c的新单词(在书上第94页)。 温故知新1.按顺序默写出所学过的大、小写字母(18个)。

2.写出上节课学的问句,并给出一适当答案。

二、课本预习

1.完成3a,自己看图填一填把不会的单词查出来。 2.完成3c读一读对话,把不会的单词查出来。 3.完成4a试着填出所缺字母在书上。

4.完成4b试着按首字母顺序填出编号在书上。 【课内学习】

一、教材处理:自主互助学习 1.猜句意spell it, please.2.学生听并跟读,同时老师板书spell it, please.k-e-y.3.学习单词spell, please.4.练习:用所学物品两人一组,练习1a对话。 5.表演3c(用老师所示物品问答)。 6.听3b,小组检查、核对。

7.比一比:看图3a每组参加1人,按物品的某种顺序,看谁写得又快又准。 e_planation

一、spell it, please.请拼写一下吧。

1.这是一个用来考查别人拼写(读)能力的句式。用于别人提到的单词,自己不知如何拼写。让对方指出这个单词由哪几个字母组成。例如: it’s a jacket.它是一个夹克衫。 —spell it, please.请拼写它。 —j-a-c-k-e-t.

2.please意为“请”,常用于一些客套的场合,可放在句首,也可以放在句末。放在句末时,常用逗号与前面部分隔开。例如: please stand up.=stand up, please.请起立。

?学习成果展示】(满分50分) 完成时间15分钟

一、找出与所给字母含有相同音素的选项。(5分) e a .g b.m c .n f a.r b.q c .pen____ o a.orange b.ok c.dog____ a a .thanks b.dale c.map i a.hi b .in c.quilt____

二、按字母表顺序默写字母i到r的大小写形式。(10分) a________________________________ a_________________________________

三、整理字母顺序组成单词。(10分) qulit______rulre______eky_____lpsle____ pleesa_____arknf______kcajte______mpa______

四、用is, am, are 填空。(10分) 1)i_________frank.2) this___ ___a pen.3) what________this ?4) how_______you? 5)it___ __a key.

五、读句子,连线配对(5分) a spell it ,please .a hi! b what 's this? b good morning! c hello,cindy!c it' san orange.d how are you? d i'm ok.e good morning !e o-r-a-n-g-e

六、选择填空(10分) ()1.thisis_______orangejacket.a.an b.a c./ ()2.what'sthis_______english.a.in b.for c.on ()3.---spell it, please.---_______ a.map b.mapc.m-a-p ()4.---alice, what' s this in english?---__________ a.it's pen b.it's a pen c.this is a pen ()5.---how are you?---_______ a .hello b.thanks c.i'm ok 【总结反思】在本节课中你还有什么不明白的问题,还有什么没有掌握的知识,请记录下来,找机会询问同学或老师。