第一篇:2013-2014学年第二学期英语中考复习试卷七年级(上)及答案
2013-2014学年第二学期英语中考复习试卷七年级(上)
考号:姓名:班级:得分:
---_______________.A.You’re welcomeB.Thanks very muchC.Don’t worryD.Yes, thanks()18.______ old man is ______ English teacher.A.The;anB.An;anC.The;theD.A;a 【满分演练】
一.单项填空(20分)
()1.---What colour is the bike?
---It’s _______ orange.A.anB.aC./D.the
()2.That isn’t her bag.It’s ________.A.myB.IC.mineD.me()3.---Oh, your kite is very nice.---__________________.A.That’s rightB.No, it’s not niceC.Yes, it isD.Thank you
()4.The woman is sixty, but she _______ young.A.isB.seesC.looksD.watches()5.It’s time ________ lunch.Let’s go home.A.toB.inC.forD.on
()6.---________ is your coat?---The black one.A.WhatB.WhereC.WhichD.How()7.---________ is the toy?---It’s on the bed.A.WhoB.WhereC.WhatD.Whose()8.The shoes are too old.Put ________ over there.A.itB.theyC.theirD.them
()9.Excuse me.Can you _______ my watch, please?
A.lookB.look likeC.look afterD.look at
()10.Look _______ the blackboard and listen _______ the teacher.A./ /B.at;toC.after;/D.on;after()11.---Whose dress is this?---It’s _________.A.LucyB.Lucy’sC.JimD.Jim’s()12.The girl ______ the purple coat is his sister.A.atB.inC.onD.with()13.There is a bird ______ the tree.A.inB.onC.toD.of
()14.There are many ________ in our school.A.woman teachersB.woman teacherC.women teacher()15.---Is there a ball under the desk?---______________________.A.Yes, it isB.Yes, there’sC.No, there isn’t()16.There _______ some books and a pencil on the desk.A.amB.isC.areD.be()17.---Let me help you.D.women teachersD.No, there is
()19.---What _____ five plus six?---It’s eleven.A.amB.isC.areD./
()20.---What ______ you see in the picture?---I can see some flowers.A.mustB.canC.areD.do 二.完形填空(20分)
This is a picture of Kat’s ____1____.What can we ____2_____ in the picture? Look ____3____ it, please.The man ____4____ the black coat is Kate’s father, Mr.Green.The ____5____ in the red sweater is Mrs.Green.They ____6____ young.The baby is Kate.The little boy is Kate’s ____7_____, Jim.___8____ the man behind Mrs.Green? Oh, he’s ____9___ brother, Mr.Read.He ____10____ young, too.()1.A.familiesB.familyC.parentsD.brothers()2.A.lookB.doC.seeD.put()3.A.atB.afterC.forD.up()4.A.onB.ofC.inD.to
()5.A.manB.girlC.womenD.woman()6.A.areB.isC.look likeD.looking()7.A.sisterB.brotherC.fatherD.aunt()8.A.What’sB.Where’sC.Who’sD.How is()9.A.hisB.herC.ourD.their()10.A.looksB.amC.lookD.very 三.在B栏中找出A栏英语句子的正确答语(10分)(A)(B)
()1.How are you?A.I am in Row 6.()2.Can you spell it, please?B.Fine, thank you.()3.How do you do?C.Yes, b-o-o-k, book.()4.What row are you in?D.It is ten.()5.What’s two plus eight?E.Nice to meet you, too.()6.Nice to meet you.F.I am 14.()7.How old are you?G.Wang Ping is.()8.Who’s not here?H.It’s here.()9.Where is the bag?I.It’s a book.()10.What is this in English?J.How do you do?
四.完成对话:在对话后面的句子中选出正确的填入空白处(10分)Jim:Excuse me, Ann.Whose black dog is this? Is it yours?
Ann:Let me have a look.________1_______.I think it’s Sam’s.My dog is brown.Jim:Sam, look at the dog behind the tree.________2__________?
Sam:Sorry, it isn’t mine.My dog is black and white.I think it looks like Mary’s.Jim:_____________3______________?
Sam:She’s my friend.Look!She’s over there.Let’s go and ask her.Jim:_______________4_______________.Sam:Hi, Mary!Is that dog yours?
Mary: _______________5_______________.Sam:It’s a lovely dog!Don’t lose it!Mary: Yes, thank you.A.Who’s MaryB.OK, let’s goC.Oh, no it’s not mine D.Oh, yes.It’s mineE.Is it yours
五.用所给单词的适当形式填空(10分)1.________(He)pen is in ______(I)pencil-box.2.________(You)shoes ________(be)under the bed.3.________(Who)new ruler is this? 4.---Are these trousers _______(you)?---No, they aren’t ________(we)
5.It’s time ________(go)and play games.6.This is my pen.Please give it to ________(I).7.I have two ________(baby).8.Look!That is a ________(China)car.9.It is __________(my teacher)sweater.10.Now her ________(parent)are in America.六.阅读理解(30分)
(A)
Bob was born in a big and rich family.His father is a university professor.He teaches American history.His mother is a very capable woman.She is the manager of a big company.She earns a lot of money, of course.Bob has two sisters and a brother.His elder sister, Jenny, is fourteen.She studies in a middle school.His younger sister, Ann, is ten.She studies in a private primary school.She has a very good memory.She is clever.His younger brother, Dick, is only six.He has just started going to school.Bob gets on well with his family.He is on good terms not only with his parents, but also with his sisters and brother.(have a friendly relationship with sb.)He is, in a word, an apple in their eyes.根据短文的内容,判断下列句子的正误:正确地答“T”,错误的答“F”。()1.Bob was born in a small and rich family.()2.He has two brothers and a sister.()3.There are five people in his family.()4.Dick is only six.He studies in a private primary school.()5.“He is an apple in their eyes” means “They love him very much”.(B)
Look at the clothes line in the twins' bedroom.There are some clothes on it.You can see a green blouse and a yellow skirt.The trousers on the clothes line are black.They are not new but clean.Are they Lily's clothes? No.I know they are Lucy's.Lily's clothes are on a clothes tree near the window.Her trousers are brown, her blouse is white and her skirt is blue.There is a new hat on the clothes tree, but it's not Lily's, it's Lucy's.There is an old hat on Lucy's bed in the room, it's Lily's.There are no clothes on the other bed, the bed is Lily's.()1.What can you see in the bedroom? I can see __________.A.a clothes lineB.a treeC.a bed
()2.What colour are Lucy's trousers? They are ________.A.greenB.blackC.brown
()3.Where is Lucy's hat? It's on _________.A.the clothes treeB.the clothes lineC.lily's bed
()4.How many beds are there in the room? ________.A.only oneB.threeC.two
()5.Are there any things on Lily's bed? ________.A.Yes, there is a hat on itB.No, there is not anything on itC.Sorry, I don't know
(C)
It's a fine Sunday morning.Ann and her mother are in a big bus.There are many people in it.Some of them come from America, and some come from England and Canada.They are all their friends.They are going to the Great Wall.There are two Chinese in the bus.One is woman.She is driving the bus.The other is a young man.He speaks good English.He is now talking about the Great Wall.The other people are all listening to him.They like the Great Wall.They want to see it very much.()1.Ann and mother are going to the Great Wall __________.A.by bikeB.by carC.by planeD.by bus
()2.There are __________.A.only one Chinese in the busB.only two Chinese in the busC.only two Chinese on the bikeD.only one Chinese in the car
()3.The driver is __________.A.a manB.a womanC.a CanadianD.an American
()4.The people __________.A.are singingB.are talkingC.are listeningD.are looking at the wall
()5.They __________.A.can see the Great WallB.can speak English very well.C.want to talk with the man very muchD.want to see the Great Wall very much
初七年级(上)
【练习答案】
一.1.C 2.C 3.D 4.C 5.C 6.C 7.B 8.D 9.C 10.B 11.B 12.B 13.A 14.D 15.C 16.C 17.D 18.A 19.B 20.B
二.1.B 2.C 3.A 4.C 5.D 6.A 7.B 8.C 9.B 10.A 三.1.B 2.C 3.J 4.A 5.D 6.E 7.F 8.G 9.H 10.I 四.1.C 2.E 3.A 4.B 5.D
五.1.His;my 2.Your;are 3.Whose 4.yours;ours 5.to go 6.me 7.babies 8.Chinese 9.my teacher’s 10.parents 六.(A)1.F 2.F 3.F 4.F 5.T(B)1.A 2 B 3 A 4 C 5 B(C)1.D 2.B 3.B 4.C 5.D
第二篇:2013-2014学年第二学期英语中考复习试卷及答案八年级上
2013-2014学年第二学期英语中考复习试卷八年级(上)
考号:姓名:班级:得分:
【满分演练】 一.单项填空
1.Welcome back ________school.A.inB.atC.toD.on
2.Miss Gao is our new Chinese teacher ________.A.in this termB.this term C.on this termD.that term 3.---I’m sorry I’m late.---_____________.A.OKB.It doesn’t matter C.All rightD.Thank you
4.Li Mu and Jill are talking _________where they are going.A.aboutB.toC.withD.for 5.There is very ______food in the house.A.a fewB.little C.a little D.few 6.You’d better take a raincoat ____you.A.toB.withC.onD.for
7.The children are going to the Great Wall ______a field trip.A.toB.withC.onD.for
8.I’m______hungry.May I have a mooncake? A.a littleB.littleC.a fewD.few 9.I’m still hungry.I’d like _________one.A.otherB.anotherC.an otherD.the other
10.The moon looks ____than the sun, but in fact the sun is ______than the moon.A.big;bigB.bigger;biggerC.small;smallD.smaller;smaller 11.I can see them_____football on the playground.A.playB.playingC.to playD.are playing 12.Ji Wei runs_________than I.A.fastB.fasterC.fastest D.the fastest
13.I think steamed bread is ____________ hamburger.A.more delicious thanB.most delicious thanC.more delicious toD.most delicious to 14.---What are you going to do this afternoon?
----__________.I’m free.A.To do my homeworkB.To clean my house C.To do some shoppingD.Nothing much 15.---May I speak to Jack?
---____________.Who’s that? A.I’m JackB.That is Jack
C.This is Jack speaking D.I’m Jack speaking
16.----Why not _________ and see the play?---Good idea.A.goB.goingC.to goD.goes
17.It’s cold outside.Please keep the door_________.A.closeB.closingC.closesD.closed
18.My home is about two hundred metres_____our school.A.from B.far from C.away D.to
19.There are some apple trees ________her house.A.in the front ofB.at the back ofC.in the middle ofD.at the front of 20.Which floor do you ________?
A.liveB.live onC.live atD.live in 二.完形填空
The Xingqing Palace Park(兴庆宫公园)is __1___ park in Xi’an.__2__ Saturdays or Sundays, children like ___3___ there __4___ their parents.There they can play games.There is a lake and a hill in the park.Today is Sunday.Many children are playing in the park.Look!Some children __5___ on the lake.They are good __6___ it.Is the boat ___7___ a chicken? No.It looks like a duck.Some boys are playing __8___ football on the grass(草地)。A few boys __9___the hill over there.All the children are having a good time.They think playing in the park is___10___ than having classes at school.1.A.biggerB.the biggestC.smallerD.the smaller 2.A.InB.OnC.AtD.With 3.A.walkingB.goingC.runningD.flying 4.A.withB.forC.onD.in
5.A.is swimming B.is boatingC.are runningD.are boating 6.A.InB.withC.fromD.at
7.A.lookB.likesC.looksD.like 8.A.aB./C.anD.the
9.A.are runningB.are walking C.are climbingD.are jumping 10.A.little better B.much better C.many betterD.the best 三.阅读理解
(A)
Mark Twain is traveling to Dijon by train.He wants to sleep very much, so he asks the conductor(服务员)to wake him up when the train gets to Dijon.The he goes to sleep.Later, when wakes up, it is early the next morning and the train has got to Paris.He knows at once that the conductor doesn’t wake him up at Dijon.He is very angry.He runs up to the conductor and says, “Why didn’t you wake me up and put me off the train at Dijon? I am very angry about it!”
The conductor smiles and looks at him, “Another American is more angry than you.But you can’t see him now.I put him off the train at Dijon last night.”
根据短文内容,判断下列各句的正误:正确的答“A”,错误的答“B”。1. Mark twain asks the conductor to wake him up in Paris.2. The train got to Dijon at night.3. Mark Twain was very angry with the conductor.4. The conductor made a mistake(错误).He put another American off the train at Dijon.5. Mark Twain can’t see that American because the American doesn’t like him.(B)
The worst tourist in the world is Nicholas Scotti of San Francisco.Once he flew from the US to his home town in Italy to see someone at home.The plane made a one-hour stop to get oil at Kennedy Airport of New York.As he thought he had arrived home, Mr Scotti got off the plane.He thought he was in Rome.When nobody was there to meet him, Mr Scotti thought maybe they were held up by heavy traffic.While looking for their addresses, Mr Scotti found that the old “Rome” had changed a lot.Many old buildings were replaced by high modern ones.He also found that many people spoke English instead of Italian and that many street signs were written in English.Mr Scotti knew very little English, so he asked a policeman(in Italian)the way to the bus station.He happened to meet a policeman who was also born in Italy and answered him in the same language.After twelve hours' traveling round on a bus, the driver handed him over to a second policeman.He asked the policeman why the Rome police employed so many people as policemen speaking English of Italian.To get him on a plane back to San Francisco, He was sent to the airport in a police car with sirens(警报)on.“Look,” said Scotti to his interpreter , “I know I'm in Italy.That's how they drive.” 1.When Mr Scotti arrived at the airport, nobody met him because ____________.A.he was in New YorkB.he was in Rome
C.policemen could help himD.he was in an Italian city
2.In what direction(方向)did the plane fly when Mr Scotti went to Italy from the US? A.To the east.B.To the south.C.To the westD.To the north.3.Why was Mr Scotti so sure that he was in Rome? A.Because he traveled a lot.B.Because he knew little about the US.C.Because he knew little about Italy.D.Because he didn't travel much.4.At last Mr Scotti _________.A.knew he did something wrongB.still thought he wasC.knew he was wrongD.knew he was home
5.Do you think many people do the same thing as Mr Scotti did? A.Nobody but Mr Scotti made this kind of mistake.B.Many people make this kind of mistake.C.Few people make this kind of mistake.D.50% of people will make the same mistake.(C)
My wife and I stayed in London for a few weeks last year.We went there in the autumn.We think it is the best season to visit England.The weather is usually quite good and there are not too many visitors in October.We stayed in a small restaurant in the West End.We did most of our sightseeing on foot.We went to look at all the places.We went shopping and spent too much money.We liked going to the theatre.We don't have the chance to see such good plays(戏剧)at home.A lot of people say English food is very bad.We didn't think so.Most of the restaurants are French or Chinese, but we had some very good meals.We enjoyed our holiday very much.We want to go there again this year.We are going to take our umbrellas.I'm sure we'll need them sometimes.1.“We went shopping and spent too much money” means _________.A.they didn't enjoy shopping and spent too much money B.prices were high in England
C.there were so many good things in the shops and they bought a lot D.they liked to go shopping with lots of money
2.They didn't have the chance to see such good plays_________.A.in their small restaurantB.in their home town C.in FranceD.in England 3.You can get _______ in a restaurant.A.mealsB.clothesC.booksD.cakes
4.I'm sure we'll need umbrellas sometimes because__________.A.umbrellas can be very good presents for their friends in London B.it often rains in London
C.the English people like to bring umbrellas with them D.the English people protect(保护)themselves with umbrella 5.The two visitors came from________.A.EnglandB.France
C.AmericaD.a country we don't know
四.根据所给汉语完成下列英语句子
1.Yesterday afternoon Miss Li came here _________(向你道歉).2.I did everything ___________(他要求我做的).3.We saw the old scientist ____________(在花园里散步)just now.4.My grandpa has ___________(好记忆).He can remember many things.5.Do you know who _______(发明了机器人)? 6.I find ____________(记住这些单词很难).7.I enjoy ____________(吃大肉).8.Don’t stand ___________(一直).Please give me a hand.9.Wang Zheng __________(出身在)a worker’s family.10.________________(祝你们好运), all the boys.初八年级(上)
【练习答案】
一.1.B 2.A 3.B 4.A 5.C 6.B 7.D 8.C 9.A 10.C 二.I.1.D 2.D 3.A 4.C 5.A 6.C 7.D 8.D 9.D 10.C 三.1.B 2.C 3.A 4.B 5.D 6.B 7.B 8.C 9.C 10.C四.(A)1.A 2.B 3.B 4.A 5.B(B)1.C 2.B 3.C 4.B 5.A(C)1.D 2.C 3.A 4.B 5.A
五.1.will stop later on2.because, too cold 3.in, northwest4.What delicious 5.stay above zero
六.1.How hot2.It, in
3.at times 4.will snow heavily 5.How about
第三篇:七年级第二学期期末考试历史试卷答案
2013—2014学第二学期期末考试七年级历史试卷参考答案
一、选择题(每题2分,共40分)
1~5 ABABC6~10BDDBD11~15BCDDC16~20CDBDC
二、请你认真观察下图,回答问题。(17分)
(1)按照从左至右的位置依次为李白、玄奘、毕昇、吴承恩。(每空1分,共4分)
(2)团结少数民族上层、加强中央与边疆少数民族的联系。(2分;意思对即可)
(3)我国经济重心已经转移到南方。(南方成为经济重心等类似表述即可,2分)
南方战乱少,社会相对稳定;中原人南迁,带去先进的技术,增加了那里的劳动人手;统治者重视江南经济的发展;自然条件的变化有利于南方农业发展等。(3分;任意三点,类似表述即可)
(4)八股取士。(2分)大兴文字狱。(2分)
共同危害:禁锢了思想,严重阻碍了我国科学文化的发展。(2分;意思对即可)
三、主题归类,解答问题。(16分)
(1)唐朝和宋朝对外交往活跃(或海外贸易活跃);唐朝和宋朝与亚洲以至非洲的一些国家,都有往来。(答出其中一个方面2分,答出两个方面给3分。表述基本符合题意即可)
(2)郑和下西洋(2分)原因:A.国力强盛B.政府支持C.造船水平的提高 D.航海技术的发展 E.指南针的运用 F.郑和个人的因素等。(A+B+其中任意一点即可得3分)
(3)闭关锁国政策。(2分)原因:封建的自给自足的自然经济较稳定,清朝统治者坚持以农为本的传统观念,推行“重农抑商”政策;自恃中国地大物博,藐视西方各国,夜郎自大;害怕外国商人和沿海人民往来会滋扰生事,威胁其统治。(任意两点、意思对即可;每点2分,共4分)
(4)加强交流、实行开放能够促进社会的进步与发展;闭关自守、盲目自大只能导致中国逐渐落伍,最终沦为被动挨打的命运。(2分;言之有理、基本符合题意即可)
四、释读图文,以史明智。(14分)
(1)戚继光率军荡平侵扰我国东南沿海的倭寇。(2分)郑成功收复台湾。(2分)
(2)康熙皇帝。(1分)签订《尼布楚条约》。(2分)
(3)观点:对外抗击外敌入侵(1分)史实列举:康熙帝平定噶尔丹叛乱;乾隆帝平定大小和卓叛乱。(每点2分,共4分;其它符合题意的答案也可给分)
(4)“国家兴亡,匹夫有责”;维护国家统一和领土完整是历史赋予我们的责任;要坚决同一切侵犯中国领土主权的势力和行为作斗争;我们要继承和发扬爱国主义精神等。(2分;言之有理,基本符合题意即可)
五、依据材料,探究问题。(13分)
(1)行省制度。(2分)中书省负责总理全国政务,行中书省负责掌管地方政务。(2分)
(2)明朝。(1分)在中央废除丞相,撤销中书省,由吏、户、礼、兵、刑、工六部分理朝政,直接对皇帝负责。(2分)
(3)逐渐成为皇帝发布政令、处理政务的中枢机构。(2分)
(4)专制主义中央集权(或君权、皇权)不断加强。(2分;意思对即可)
积极影响:有效地维护了多民族国家的长期统一和民族融合。
消极影响:专制主义加强,严重阻碍了中国科技、经济、思想文化的发展和进步,造成中国落后于世界潮流。(积极和消极的影响各答出任意1个方面,表述基本符合题意即可,每个方面1分,共2分)
第四篇:2017-2018学年第二学期七年级英语试卷分析[模版]
2017-2018学年第二学期七年级英语试卷分析
一、试题特点
本次英语试题是同一的,难易程度适中,测查的范围就是第一模块到第十二模块的知识,知识点考查详细,采用各种形式检测学生对英语基础知识的掌握程度及灵活综合运用语言的能力。
二、试卷分析
1、听力
此次考试给孩子们增加了听力题,目的是从一开始就要让孩子们重视听力,听说读写全面发展。孩子们的听力层次不齐,有的孩子可以拿满分,有的孩子低至10来分。以后还是要加强孩子们的听力训练。广泛的考查了打招呼、询问东西、询问颜色和拼写单词的知识点,但是学生答题情况不佳。有部分学生的考试态度不端正,所以以后考试前应该给孩子讲解到位考试听力的重要性。
2、阅读理解
四篇阅读理解,严格按照中考模式出题。A篇阅读,B篇阅读,C篇阅读重点考察学生的基础知识。三篇题都很简单,答题较为理想,D篇词汇量大,较为困难。第一,学生阅读习惯需要进一步培养,很多学生只是对照题目单纯去找答案,而不去认真反复地看文章,缺乏耐心。第二,部分学生只能够理解文章的表面意思,不能透过现象看本质,理解出作者的言外之意,弦外之音。这需要在以后的教学中多加培养和训练。
3、完成对话
这道题是要求孩子们写出英文句子,但是有部分学生理解英文太弱,没有英语的语言沟通思维,同时大部分孩子不记单词,所以这道题做的不是很好。
4、综合填空
以考查单词为主的,从这道答题情况可以看出孩子们没有认真记单词,这也是我目前的一个教学困惑点。
5、阅读表达
任务型阅读是中考的必考题型,从整体看来,孩子们答题还是不错的。
6、作文
作文历来都是考试的一个重中之重的任务。这次的考试作文题是我从平时的对话中提取出来的,但是孩子答得不好,能的满分的学生寥寥无几。从写作这块中学生扣分的地方来分析,学生缺乏英语思维能力,受母语影响很大,很多句子在表达的时候总是根据中文的意思或中文的顺序来进行写作,而不能综合运用英语的语言知识、语法知识和课文的语段去模仿写作,也有的是摘抄一些阅读理解中的内容,或者还有的学生干脆一个字 也不写。
四、教学建议
综合学生答卷中的问题,为了今后更好的教学,提出以下教学建议:
1、基础知识的落实要常抓不懈,尤其在复习期间应巧抓落实。
2、多进行重点词汇的造句练习,做到词不离句,句不离词,确保表达的句子准确。
3、多进行答题技巧或技能的指导训练,尤其听力、完形、阅读理解几个大题上,灵活准确地运用积累的基础知识要点。
平时教学中多指导学生进行阅读训练,提高学生的英语语感。
4、平时教学中多指导学生进行阅读训练,提高学生的英语语感。
5、书面表达必须教会学生如何审题,如何列要点,从哪些方面丰富要点内容,如何造句及一定的应试技巧。
第五篇:2014年上学期七年级生物中考试卷分析(推荐)
2014年上学期七年级生物中考试卷分析
这次中考生物试题共两个大题,总分100分。现将试题、试卷具体情况分析如下:
一.试卷总体评价
本次生物中考主要考察学生基础知识和基本技能。部分题目比较灵活,突出考查学生在具体答题中的分析能力,大多数题目与生活紧密联系,如选择题的第17、29等题。这样很大程度上提高了学生的学习兴趣,是该试卷的亮点之一。
二.试卷考试结果分析
选择题共30题,即考查基础知识的掌握情况,又考查学生应用知识的能力。从答题情况看,第8、27、29小题出错率较高。从这些情况反映学生运用知识的能力较差,综合分析问题的能力不够。导致部分学生选择题得分不高。填空题难易适度,具有一定的代表性。第31题的第1、2问出错率较高,主要是学生对探究性试验理解不清,对淀粉消化的过程不清楚。第32题的第1问出错率高,反映学生对呼吸运动的原理理解不透彻,识图能力欠佳。第34题平均分只有5.8分,反映学生对血液循环的两条途径掌握不够,对血液循环中血液性质改变知识模糊。
从试卷总体看,体量适度,题设表述清楚。从结果看,大多数学生已掌握了书本的基础知识,能对所学知识进行应用,整卷的分数为78分左右,到达预期的结果。但少数学生基础知识掌握较差,说明在平时上课没有听懂,有得以后的教学中努力。
三.问题反思及措施
从本次考试的结果分析,生物教学存在许多问题,需要认真反思: 1.要深入钻研课标,加强教研,用新课程理论统领课堂。2.狠抓基础知识的落实,把书本与日常的生产、生活相联系。3.探究实验要让学生亲自动手体验。
初一生物备课组
2014.4.18