高一英语 必修三学案

高一英语 必修三学案
高一英语 必修三学案

高一英语寒假作业(五)Book 3 Module 3

时间:腊月28下午4:15---5:15

学习目标:理解课文The Violence of Nature,掌握下列重点短语及句型

Step 1:短语基础点过关

1. find out 查明,弄清(情况)

I haven’t found anything out about him yet. 我还没有发现有关他的什么情况。

2.refer to 提到、涉及、指的是,参考、查阅、

Don’t refer to the matter again. 不要再提这件事了。

Refer to the dictionary when you don’t know how to spell a word. 当你不知道怎么拼写一个词时,查阅一下词典。

3.happen

1)happen vi 偶然发生

I can’t understand how this happened. 我不理解这是怎么发生的。

2)sth happen to sb/sth 发生在…身上

I wonder what’s happened to Jane. 我不明白简发生了什么事。

3)happen to do sth 某人碰巧做某事

I happened to see her on my way to work.我碰巧在上班的路上看到她。

4. pick up1)拾起;2)去接(某人);搭车;3)(偶然)学会

1)I picked up the empty bottle on the ground.

2)My wife is going to pick me up in half an hour.

3)When I was travelling in France, I picked up some French.

5. take off 1) 脱下,摘下;2) (飞机等)起飞;3)休假;4)迅速成功、走红;

1)Taking off his sunglasses, he said hello to me politely. 摘下他的墨镜后,他很礼貌地跟我打招呼。

2) Ladies and gentlemen, please turn off your cellphones. The plane is taking off. 女士们,先生们,请关上

您的手机。飞机就要起飞了。

3)I’d like to take ten days off and take my daughter to Beijing for the holiday.

我想休10天假带女儿去北京度假。

4)With the help of Mr Green, John’s business took off. 在格林先生的帮助下,约翰的生意迅速好了起来。Step 2:重点短语及句型

1.They can destroy houses, but leave the furniture inside exactly where it was.

它们能毁掉房子,却把房内的家具留在原处。

1)furniture n. “家具”,是不可数名词,表示“一件家具时”用a piece\ an article of 来修饰There is only a piece of furniture in his bedroom. 他的卧室里只有一件家具。

2)where “在…的地方”,在句中引导地点状语从句,修饰动词。

Keep your baby where you can see him at any time. 把你的婴儿放在你随时能看得着他的地方。比较:

Where 引导定语从句时,从句前要有先行词,这是where 引导地点状语从句和定语从句的最明显的区别

如:

You shouldn’t leave the bottle where your son can get it. (地点状语从句)

你不应该把瓶子放在你儿子够得着的地方。

You shouldn’t leave the bottle at the place where your son can get it(定语从句)

你不应该把瓶子放在你儿子够得着的地方。

2. On average, there are 800 tornadoes in the US each year, causing about 80 deaths and 1,500 injuries.

平均说来,美国每年发生800次龙卷风,造成大约80人死亡、1,500人受伤。

1) on (an\ the) average 平均

2) causing 是现在分词形式作结果状语,表示“自然而然的结果”

A traffic accident happened last night, ______(cause) three deaths.

3. The worst tornado of all time occurred in 1925, affecting three US states.

最恶劣的一次龙卷风发生在1925年,波及了美国的三个州。

affecting three US states 是现在分词作结果状语

比较:

现在分词作结果状语与不定式作结果状语的区别:

现在分词作结果状语:表自然而然的结果

不定式作结果状语:表意想不到的结果,常用only\ just\ never to do 结构

It rained heavily, causing serious flooding in that country.

大雨滂沱,造成了那个国家洪水泛滥。

He got home happily only to learn that his father was ill.

他高兴地回到家中,结果却得知他父亲病了。

4. By the time it ended, more than 700 people had been killed and 2,700 had been injured.

等到风停时,已有700多人死亡,2700多人受伤。

5. By the late 1890s, he had moved to Galveston, where he died in 1899, a year before the hurricane struck.

19世纪90年代后期,他迁居加尔维斯顿,直到1899年在那里去世,也就是飓风袭击的前一年。

句子主干:1)he had moved to Galveston

2)where he died in 1899是非限制性定语从句,修饰先行词Galveston

3) a year before the hurricane struck是1899的同位语,进一步说明1899年的情况

4) by the late 1890s是时间状语

5) ①by the time +一般过去时,主句时态为过去完成时

By the time he was 12, he ______________ English all by himself.

到他12岁的时候,他已自学了英语。

②by the time +将来时间(或动词用一般现在时表将来),主句时态为将来完成时

By the time he comes, I_______________ my painting.

到他来的时候,我就完成这幅画了。

6. The cemetery where Coghlan was buried was destroyed by the hurricane and Coghlan’s coffin ended up in

the sea. 掩埋科格伦的公墓被飓风所摧毁,他的棺材最后被卷入大海。

1)where Coghlan was buried 是限制性定语从句修饰the cemetery

2) end up “结果为…,以…结束”

①后接形容词作状语(end up +adj. )

If you aren’t careful, you will end up dead in a car accident. 如果你不小心的话,你将会命丧车祸的。

②后接doing 作宾语

If you don’t eat less you will end up putting a lot of weight. 如果你不少吃点,你会发胖很多的。

1

③后接介词短语作状语

I. end up with (表伴随) “以…告终”,

The meeting ended up with a new song. 会议最后以高歌一首新曲而结束。

II. end up in (后面通常接表示地点的名词) “最终”

If you continue to steal, you will end up in prison. 如果你继续行窃,你最终会被送进监狱。

III. end up as “作为结束、告终”

As a child he wished to become a singer, but he ended up as a driver. 小时候他想成为一名歌星,结果却当了司机。

Step 3:记忆重点句:

1. They can destroy houses, but leave the furniture inside exactly where it was.

它们能毁掉房子,却把房内的家具留在原处。

2. On average, there are 800 tornadoes in the US each year, causing about 80 deaths and 1,500 injuries.

平均说来,美国每年发生800次龙卷风,造成大约80人死亡、1,500人受伤。

3. The worst tornado of all time occurred in 1925, affecting three US states.

最恶劣的一次龙卷风发生在1925年,波及了美国的三个州。

4. By the time it ended, more than 700 people had been killed and 2,700 had been injured.

等到风停时,已有700多人死亡,2700多人受伤。

5. The cemetery where Coghlan was buried was destroyed by the hurricane and Coghlan’s coffin ended up in

the sea. 掩埋科格伦的公墓被飓风所摧毁,他的棺材最后被卷入大海。

Step 4:知识应用

1.It suddenly___________to me that I could set up a website to help the homeless. (我突然想起…)

2. Didn’t it occur to you ____________you called me up at that time?

3. –Would you be able to go to the party?

-I’m afraid not. I have to _________(用车接)my friend at the airport.

4. Smell the flowers before you go to sleep, and you may just________sweet dreams.(最后进入甜蜜梦想)

5.–What happened last night?

-A violent wind took the roof up. I’m repairing it. (改错)

6. After its first album was released , the music group took on in Hong Kong. (改错)

7. Today, we will begin that we stopped yesterday so that no point will be left out. (改错)

8. What__________(引起)him to change his mind ? You know, he is stubborn(顽固的)

9. The cost of the project is very big, but it is not the main result of its failure. (改错)

10. Since 1994, the glacier(冰川) in Antarctic has lowered by as much as 90cm, _________(导致)sea level to rise.

11. He got home happily _____________ that his father was ill.

他高兴地回到家中,结果却得知他父亲病了。

高一英语寒假作业(六)Book 3 Module 3

时间:正月初4 晚7:30----8:30

学习目标:理解课文cultural corner,掌握下列重点短语及句型,及语法被动语态

Step 1:短语基础点过关

1.pour down 倾盆而下

2.set fire to 放火烧/ set sth on fire

3.catch fire 着火

4.manage to do 设法做成某事

5.put out 扑灭,熄灭

6.turn over 翻转

7.be situated/located in/on/at坐落于,位于

8.in all 总共,合计

9.lose one’s life 丧命

Step 2:重点短语及句型

1.do damage to 对…造成损害The sun can do damage to your skin. 阳光能损伤皮肤。

2.cover an area of 占地…Our school covers an area of more than 100 mu.

3.The fires burned for three days, destroying a total of 25,000 buildings.在本句中destroying位于句末,在

句中做结果状语。

The accident happened unexpectedly, causing 3 deaths.事故发生出人意料,导致3人死亡。

4.Grammar

英语中及物动词有两种语态,即主动语态和被动语态。主动语态表示主语是动作的执行者被动语态表示主语是动作的承受者。被动语态由“助动词be+及物动词的过去分词”构成。助动词be有人称、时态和数的变化。

被动语态的用法:

1.一般现在时的被动语态构成:is / am / are + 及物动词的过去分词

Our classroom is cleaned everyday.

I am asked to study hard.

Knives are used for cutting things.

2.一般过去时的被动语态构成:was / were + 及物动词的过去分词

A new shop was built last year.

Dinosaur eggs were laid long long ago.

3.现在完成时的被动语态构成:has / have + been + 及物动词的过去分词

This book has been translated into many languages.

Many man-made satellites have been sent up into space by many countries.

4.一般将来时的被动语态构成:will+ be + 及物动词的过去分词

A new hospital will be built in our city.

Many more trees will be planted next year.

Step3: 知识应用

1.When the firefighters arrived, the house ______(burn)down.

2. A terrible earthquake with tsunami happened in the country, _______ (导致)more than 10,000 deaths.

3. The bad man was about to set ______ fire to his wife, ______ actress not well known to us, when the police

came to catch him.

4. Two students fell into the river. _______(幸运地是), they were saved by some passers-by as soon as

possible.

5. Do you know how many people attended the lecture last night?

It was said that there were 800 people ______.(总共)

6.The house was in ______ruins after it caught ______ fire.

7.The fires burned for three days, destroyed a total of 25,000 buildings.(改错)

2

8. By the time he was 12, he has learned English all by himself. (改错)

高一英语寒假作业(七)Book 3 Module 4

时间:正月初五下午4:15----5:15

学习目标:记忆本单元所有单词,掌握重点单词的用法

Step 1:背记单词与重点单词用法学习

1.mass

(1)adj. 大量的,大规模的,广泛的mass production批量生产

(2)n. 团,块,堆;大量,许多a mass of = masses of 许多;大量(修饰可数名词和不可数名词皆可)

On his desk is a mass of books and papers. 他的桌子上满是书和试卷。

Masses of people attended the meeting. 很多人参加了这个会议。

2.辨析strength / energy / power / force

strength力量,力气,体力

energy (自然界的) 能量或能源;(人的)精力或劲头

power泛指一切力,多指能力/ 权力/ 势力/ 电力/ 水力/ 智力

force暴力,强制力。复数形式指“兵力,武力等”

用strength / energy / power / force 选词填空

(1)You are always full of________and don’t feel tired.

(2)The boy lifted the stone with all his_________.

(3)Does the President have more________than the Prime Minister?

(4)Teachers aren’t allowed to use______in controlling their pupils.

3.concern vt.与……有关;涉及;关心concerned adj. 关心的

(1)be concerned about sth.关心某事

I will tell your friend that you are concerned about him. 我会告诉你的朋友,你很关心他。

(2)as far as …be concerned就……而言

As far as he was concerned what other people thought was not the most important thing. 就他而言,别人的想法并不是最重要的。

https://www.360docs.net/doc/e67606697.html,plain vi. 抱怨

complain to sb. of/about sth. 向某人抱怨某事

I’m going to complain to the manager about this. 我将就这件事向经理提意见。

complaint n.抱怨;不满

Some children are full of complaints about their food. 有些孩子对他们的饭菜满腹怨言。

Step 2:知识应用

1.All of us were________(frighten)when we heard the________(frighten)news that a wolf had attacked

people.

2. _________(concern)about father’s health, we hired a taxi to Changsha to consult a famous doctor.

3. Never will I_______(抱怨) to my mother about my school because I have been used to it.

4. Snow has been______________(预报) for tonight.

5. Old people are just treated like second-class _____________(公民).

6. I ______________(骑车) in front of him and asked my son not to ride so fast.

7. We must stop ______________(污染) the earth’s atmosphere.

高一英语寒假作业(八)Book 3 Module 4

The Human Development Report

时间:正月初七下午3:05----4:05

学习目标:理解课文,掌握下列重点短语及句型

Step 1:短语基础点过关

1. a major disaster 一个主要的灾难

2.be caught in 突然遭遇(风暴等);被困于---

3.prevent/stop---(from) doing sth 阻止---做某事keep ---from doing sth (from不可省)

4.ways /a way to solve the problem/of solving the problem 解决问题的方法

5.There was nothing to be done 无计可施,一点办法也没有

6.as a result of =because of 因为as a result 因此

7.cut down 砍倒;削减

8.dig up 挖掘

Step 2:重点短语及句型

1.To have been caught in a sandstorm was a terrible experience 遇上沙尘暴是一种可怕的经历。

be caught in 突然遭遇(风暴等);被困于--- 做状语时用caught in 即去掉be

Eg. He was caught in the rain yesterday. 他昨天淋雨了。

Caught in a traffic jam, I was late for the meeting. 遇上交通阻塞,我开会迟到了。

2.It was the most frightening and the most dangerous situation I’ve ever been in. 那是我遭遇过的最可怕

的最危险的境况。

I’ve ever been in 是省略了that的定语从句. 还原为------situation that I’ve ever been in. 若去掉in,可用where引导定语从句

situation where I’ve ever been

3.The storms sometimes continue all day and traffic moves very slowly because the thick dust meakes it

difficult to see.暴风雨有时持续一整天,车辆开得很慢,因为浓浓的尘埃降低了能见度。

make it +adj +to do sth 使做某事--- it形式宾语,真正的宾语是后面的不定式;adj 做宾补; 类似词的用法find/feel/consider/think

The Internet makes it possible for us to work or do some shopping from home.因特网使我们在家工作和购物成为可能。

4.To prevent it coming nearer, the government is planting trees.为阻止沙漠的逼近,政府正在植树。

prevent/stop---(from) doing sth 阻止---做某事keep ---from doing sth (from不可省)

变被动语态时from都不可省

Nothing stops/prevents/keeps him from realizing his dream. 没有什么能阻止他实现自己的梦想。

Step3 知识应用改错

1.Being caught in the heavy snow, they had no choice but to wait at the railway station.

2. Does the way making the water clean make any sense(有意义)?

3. -Look at the terrible situation where I am in! If only I had taken your advice.

4. Mary has been absent from school for a week as result of her illness.

5. The two girls are so alike that strangers find them difficult to tell one from the other.

3

2018版高中数学必修三学案(25份)苏教版2(精品教案)(最新整理)

感悟随机抽样 抽样是统计分析的基础.在进行统计分析时首先要收集数据,但收集全部数据有时很困难,有时还带有破坏性,如灯泡使用寿命的调查、炸弹的可靠性的分析等,因此,“抽样”是很必要的.常用的抽样方法有简单随机抽样、系统抽样和分层抽样,下面一起体会一下这三种抽样方法. 一、简单随机抽样 最常用的简单随机抽样方法:抽签法和随机数表法. ()抽签法是常见的一种抽样方法,该法既保证了抽样的随机性,又保证了样本的代表性.()随机数表法:使用随机数表时,要注意随机数表中数的随机性,同时为了保证抽样的随机性,开始数的选取一定要是随机的,并且读数的方向可以任意事先约定,还要使操作方便易行.()适用范围:由于抽签法和随机数表法都要对个体进行编号,还要逐个抽取,所以抽签法适用于总体中个体的数目比较少,样本容量比较小时;随机数表法适用于总体容量较大,样本容量不大时. 在充分理解简单随机抽样方法后可得如下结论:①用简单随机抽样,从含有个个体的总体中抽取一个容量为的样本时,在整个抽样过程中各个个体被抽到的可能性相同;②简单随机抽样体现了抽样的客观性与公平性;③简单随机抽样的特点:它是不放回抽样;它是逐个地进行抽取;它是一种等可能抽样. 二、系统抽样 ()系统抽样广泛应用于生活实例中,也是不放回抽样.当总体中的个体数较多时,可将总体分成均衡的几部分,然后按照预先定出的规则,从每一部分抽取个个体,得到所需要的样本,这种抽样叫做系统抽样. ()系统抽样与简单随机抽样的联系与区别:假设要从容量为的总体中抽取容量为的样本,如果遇到不是整数的情况,可以采用简单随机抽样的方法从总体中剔除几个个体.由此可见,系统抽样和简单随机抽样是密不可分的,同时,系统抽样和简单随机抽样也有区别,系统抽样适用于总体中的个体比较多、且个体之间差异不太明显时,另外系统抽样中的规则是预先人

(完整word版)外研版高中英语必修三Module1Europe学案(教师版).docx

Book 3 Module 1 Europe( 教师版 ) Period 1 introduction Word study: 1.The United Kingdom is off the northwest coast of continental Europe. ①off the coast of离?地不的海上 句中的 off 是介,“与?相离,脱离” eg. He lives in a villagea little away off the road.他住在离大路不的村子里。 It will be a good thing when those old cars are off the roads. 那些旧不再上路将是件大好事 ②continental adj. 大的n. continent 大 2. France is Europe ’ sthird largest country and faces the United Kingdom across the English Channel. ①Europe’s third largest country 形容的最高前加上了序数third 来修,如 eg. The second most expensive suit cost me 1000 yuan. 第二的西服花了我1000。 ②face n. ;面,表面v. 面,面;朝向;正 【拓展】in (the) face of面be faced with面/面?? make a face (= make faces) 做鬼;扮怪相face up to大胆面向 hit sb. in the face打中某人的save one ‘ s face 保全面子 lose one’ s face失面子face to face面面(做状)facetoface面面的(做定) eg. (1)_Faced_____ _with___difficulty, we didn't give in.面困,我没有屈服。 (2)The house faces (to the) south. 房子朝南。 (3)Liu Hulan faced the enemy bravely /with courage.刘胡勇敢地面人。 (4)If anything goes wrong, it is I who will have to face the music. 如果出了什么,任的是我。 3.Twenty percent of the country is covered by islands. ① Part of/half of /two thirds of /20 percent of + 可数名复数 + 复数 Part of /half of /two thirds of /20 percent of + 不可数名 + 数 eg. Nearly 70 percent of the students wear glasses. 接近 70%的学生都戴眼。 Half of the food was wasted.一半的食物都浪了 ②cover v. 覆盖cover A with B== A is covered with/by 4. range n.排;;山脉;(化等的 )幅度; (知等的 )范;区域;射程 v. 排列,使排;(植物 )分布; ( 在一定范内)化, a wide range of 一系列?? a full range of各种?? in/out of the range of 在 /超出??范out of one‘ s range某人能力达不到的 range from...to... 在??范内,包括(由??到??)之的各事物 range between...and... 在??和??范内 eg. (1)The child was now outof her range of vision.孩子已走出了她的。 (2)There is a full range of activities for children.里有孩子提供的各种活。 (3)Estimates of the damage range between $ 1 million and $ 5 million. 估失在100 万到 500 万美元之。 (4)She has had a number of different jobs, ranging from chef to swimming instructor. 她做多不同的工作,从厨到游泳教。

【2020最新】人教版高中数学必修三学案:1

教学资料范本 【2020最新】人教版高中数学必修三学案:1 编辑:__________________ 时间:__________________

【学习目标】 ①知识目标:理解书中介绍的中国古代的三个问题的算法。 ②能力目标:通过算法的Scilab 程序,使学生初步具备编程能力的思想。 ③情感目标:通过阅读教材和了解算法思想,体验中国古代数学的伟大,培养学生的爱国之情。 【自主学习】 1、 求两个数的最大公约数的方法有两种,分别是_________________和_______________。 2、 所谓“割圆术”,是用____________________去无限逼近圆周并以此求___________的方法。 3、 阅读教材p36页《我国古代数学家秦九韶》,理解秦九韶算法的步骤。 【典例分析】 例1 求132与143的最大公约数。 跟踪练习 求下列两个数的最大公约数:(1)8251,6105 (2)1480,480 例 2 用秦九韶算法求多项式在x=2时的函数值。 143)(2367+-+-=x x x x x f 【快乐体验】 一、选择题 1.用秦九韶算法求多项式在=-1.3的值时,令;; …;时,的值 为( ) 654322.5666.38.135.02)(x x x x x x x f +-+-++=x 60a v =501a x v v +=056a x v v +=5v A.-9.8205 B.14.25 C.-22.445 D.30.9785 2.数4557、1953、5115的最大公约数是( )

A.31 B.93 C.217 D.651 二、解答题 3.用等值算法求下列各数的最大公约数. (1)63,84; (2)351,513. 4.用辗转相除法求下列各数的最大公约数. (1)5207,8323; (2)5671, 10759. 5.求三个数779,209,589的最大公约数. 6.用秦九韶算法求多项式在时的值. 5365127)(2345-+--+=x x x x x x f 7=x 【反思回顾】 总结今天这节课的内容,你收获了哪些思想方法?

必修三unit1导学案3(最新整理)

必修三Unit 1 Festivals--- Guidance 3 to SS’ Studying 1.learn language points of A Sad Love Story and master them through practice 2.master 19 key words , 14 phrases and 5 difficult points 一.课前预习:学会12 个单词,5 个短语,熟读P7 A Sad Love Story 1.单词表上12 个词1 worldwide 2 fool 3 permission 4 fashion 5. apologize 6.obvious 7.remind 8.forgive 9.wipe 10.drown 11.prediction 12.parking 2.生词表上短语5 个:1 turn up 2 keep one’s word 3 hold one’s breath 4 set off 5 remind…of…二.难点聚焦:5 个 A.P15, L16--a bit thinner L17—much happier 比较级的构成和比较级的修饰词——“一些很多相当远,甚至还要多一点” 1.她越来越健康,她比我们开心得多。 2.小李很聪明,小张远比他聪明。 3.你不戴眼镜看起来好得多。 B.P14,L 2—look forward to sth/doing sth look forward to 意思是,其中的to 是词性,后接动词时用. 1.I am looking forward to (hear) from you now. 2.我期盼你早点回来。 3 我们期盼的考试到来了! C.P14 首句:a week later, …he felt happier. later…后,…以后/late 晚点,迟到 1.飞机晚点了三个小时。 2.三年后,他失败了。 D.It will be/take +时段+before+一般现在时句子—要过一段时间才能… It was/took+时段+before+一般过去时句子—过了一段时间事情发生了 1.过了三年,他们结婚了。 2.要过半年,我们才是高二学生。 3.要不了多久他就会康复。 E.确定more than/rather than/other than 的词义 more than:other than:rather than:三.知识网络构建:4 类 1.the other day: 过去时常用的时间词: 2.cut down 词义: 其他和cut 有关短语 3.before long: long before: 4.marry 有关短语:

2017-2018学年人教版高中英语必修三全套精品导学案

2017-2018学年人教版高中英语必修三 全套精品导学案 Book3 Unit1 Festivals around the world Period1 改编: 学习目标:1阅读课文了解世界各地的节日 2.理解并掌握文中的长难句 自主学习:记《非常学案》P1核心词汇跟高频词汇 合作探究: Ⅰ. 阅读Reading部分,从每题所给的3个选项中选择最佳答案 1.What's the main idea of the text? A.Festivals have many origins. B.Festivals are held to honour the dead and famous people. C.Festivals are held for happy events. 2.In ancient times,people would celebrate________. A.when winter ended B.if food was difficult to find C.during the cold winter months 3.Which of the following is NOT the festival to honour the dead? A.The Japanese festival Obon. B.The Western holiday Halloween. C.Japan's Cherry Blossom Festival. 4.Which of the following festivals is NOT mentioned in the text? A.Columbus Day. B.Mid-autumn Day. C.Christmas Day. 5.What can we infer from the passage? A.People would have feasts,sing and dance at all festivals. B.People celebrate festivals because they don't want to work. C.By celebrating festivals,people are developing the culture and customs. Ⅱ. 阅读P1-2的Reading部分,完成下面的表格(每空不超过3个单词)

人教A版高中数学必修三:2.1.1简单随机抽样 学案

2.1.1 简单随机抽样 学习目标 1.体会随机抽样的必要性和重要性;2.理解随机抽样的目的和基本要求;3.掌握简单随机抽样中的抽签法、随机数法的一般步骤. 一.问题“导”、“研”: (一) 随机抽样的必要性及基本概念 思考 要知道一批牛奶是否达标,为什么不采用逐一检测的方法? 答案 因为检测具有破坏性,且耗时费力. 抽样的必要性: 第一,要考查的总体中个体数往往很多,而且在时刻变化,逐一调查不可能.第二,考查往往具有 ,所以逐一调查也不可取.这就需要抽查一部分,以此来估计 . 抽样涉及的基本概念:(以某地区高一学生身高为例) 为了了解某地区高一学生身高的情况,我们找到了该地区高一八千名学生的体检表,从中随机抽取了150张,表中有体重、身高、血压、肺活量等15类数据,那么总体是指 ,个体是指 , 样本是指 , 样本容量是 . (二) 简单随机抽样 思考 从含有甲、乙的9件产品中随机抽取一件,总体内的各个个体被抽到的机会相同吗?为什么?甲被抽到的机会是多少? 一般地,设一个总体含有N 个个体,从中逐个不放回地抽取n 个个体作为样本(n ≤N ),如果每次抽取时总体内的各个个体被抽到的机会都相等,就把这种抽样方法叫做 . 简单随机抽样方法分为? ???? 抽签法(抓阄法),随机数法.

简单随机抽样有操作的优点,在总体的情况下是行之有效的. 二“生展”、“师升”: 类型一简单随机抽样的基本思想 例1人们打桥牌时,将洗好的扑克牌随机确定一张为起始牌,这时按次序搬牌时,对任何一家来说,都是从52张牌中抽取13张牌,问这种抽样方式是不是简单随机抽样?为什么? 反思与感悟判断一个抽样方式是不是简单随机抽样,就是看这个抽样符不符合简单随机抽样的4个特点,符合就是,否则就不是. 跟踪训练1下列抽样的方式是否属于简单随机抽样?为什么? (1)从无限多个个体中抽取50个个体作为样本. (2)箱子里共有100个零件,从中选出10个零件进行质量检验,在抽样操作中,从中任意取出一个零件进行质量检验后,再把它放回箱子. 类型二抽签法 例2某卫生单位为了支援抗震救灾,要在18名志愿者中选取6人组成医疗小组去参加救治工作,请用抽签法设计抽样方案.

高中数学 必修三 导学案:3.3

§3.3 几何概型 课前预习案 教材助读 预习教材P135-P136,完成以下问题。 几何概型的两个特点:(1)________________性,(2)_________________性. 课内探究案 一、新课导学 1.模拟方法:通常借助____________来估计某些随机事件发生的概率。用模拟方法可以在短时间内完成大量的重复试验,对于某些无法确切知道概率的问题,模拟方法能帮助我们得到其概率的近似值。 2.几何概型: (1)向平面上有限区域(集合)G内随机地投掷点M,若点M落在的概率与G1的成正比,而与G的、无关,即P(点M落在G1) = ,则称这种模型为几何概型。 (2)几何概型中G也可以是或的有限区域,相应的概率是或 。 二、合作探究 探究1:飞镖游戏:如图所示,规定射中红色区域表示中奖。 问题1:各个圆盘的中奖概率各是多少? 问题2:在区间[0,9]上任取一个整数,恰好取在区间[0,3]上的概率为多少? 问题3:在区间[0,9]上任取一个实数,恰好取在区间[0,3]上的概率为多少? 新知1:几何概型:如果每个事件发生的概率只与构成该事件区域的______________,____________或______________,则称这样的概率模型为几何概率模型,简称几何概型。几何概型的两个特点:(1)_______________性,(2)_________________性. 几何概型概率计算公式:

P(A)=____________________________________ ※ 典型例题 例1某人午觉醒来,发现表停了,他打开收音机,想听电台整点报时,求他等待的时间不多于10分钟的概率. 例2 如图,假设你在每个图形上随机撒一粒黄豆,则图1、图2落到阴影部分的概率分别为 ___________,__________. 例2、(选讲)在区间[-1,1]上任取两个数,则 (1)求这两个数的平方和不大于1的概率; (2)求这两个数的差的绝对值不大于1的概率。 例3 取一根长为3米的绳子,拉直后在任意位置剪断,那么剪得两段的长都大于1米的概率是_______. 三、当堂检测 1、平面上画了一些彼此相距a 2的平行线,把一枚半径为)(a r r 的硬币任意掷在这平面上

新课标人教版高中英语必修三 Unit1 精品学案

必修三Unit 1 Festivals around the world 单元要点

一、根据句子的意思翻译或按要求填词。 1. take place / happen / occur / come about / break out take place表示“发生、举行、举办”,一般指非偶然性事件“发生”,有某种原因或事先安排。 happen作“发生、碰巧”解,一般用于偶然或突发性事件。 occur作“发生、想到、突然想起”解,其意义相当于happen。

come about表示“发生、产生”,多指事情已经发生了,但还不知道为什么,常用于疑、否break out意思为“发生、爆发”,常指战争、灾难、疾病、火灾或者争吵等事件的发生1). Great changes have __taken place__ (发生) in our hometown during the past ten years. 2). It occurred to me that (我突然想起) I saw him on my way home yesterday. 3). I happened to see (碰巧看见) your sister crying on my way to school yesterday. I was in such a hurry that I had no time to ask what had happened to (介词) her? 4). When the Second World War broke out (爆发), Tom was only a newborn infant. 5). I’ ll never understand how it came about (发生) that you were late three times a week. 2. celebrate / congratulate celebrate“庆祝”,后面跟某个节日或物。 congratulate“祝贺”,一般搭配为congratulate sb. on (doing)sth.“祝贺某人某事”。Let’s hold a party to celebrate your birthday and at the same time congratulate you on your passing the examination. 3. gather / collect 这两词用不及物动词时用,常可互换,都表“ 聚集;聚拢”gather强调将分散的东西收集在一起。 collect对某些事物进行逐渐的收集,强调为了研究目的或爱好而做的有鉴别、有计划的收集 1). The dustmen collect the rubbish once a week. 2). A group of people like collecting stamps. 4. award / reward award n.“奖品”、“奖金”,指因为作出杰出成就而受奖win/get/receive an award for sth. vt.“授与”、“颁发”、“判给” award sb. sth. = award sth. to sb. reward n.“赏金”、“酬金”或一些非金钱的报酬as a reward vt. 表示“报答”、“酬谢”之意 reward sb. for sth. / reward sb. with sth. 1). They awarded John the first prize in the contest.

外研版高中英语必修三模块教学设计

教学设计说明 1.教材分析 外研版高中英语教材分为必修(1-5册)和顺序选修(6-11册)。本课选自外研版高中英语必修三(供高中一年级下学期使用)模块1,单元的核心主题是Europe,介绍了欧洲的一些城市。各个板块内容分别是topic& task, grammar/function, skills, vocabulary/everyday English, culture/learning to learn, work-book六部分组成。通过本单元的学习,学生可以具体了解欧洲的一些国家或城市的历史发展,著名建筑物以及历史上的著名人物。本单元第一部分是Induction,除了对单词的学习,还介绍了一些国家或城市的名字,并对其的地理方位进行了描述,通过一张map,对这些城市进行学习。第二部分是Reading and Vocabulary,是本节课的重点,重点分析课文: Great European Cities. Function部分,主要进行Describing Location的学习。 接下来是对Grammar 1 Passive voice: present and past forms 和Grammar 2 Subject and verb agreement的学习。还有一部分技巧训练,对听、说、读、写四个方面进行练习。下一部分是 Pronunciation and everyday English的练习,最后一部分是Culture corner部分的学习,增加对欧洲文化知识的了解。 本课选取本单元的Reading and Vocabulary 部分的文章Great European Cities作为教学重点内容,作为本单元的第二课时,但是阅读课的第一课时,该文章是分别对欧洲四个国家的著

高中英语必修三一单元学案

Unit One Festivals and Celebrations 知识点学案 1.take place 重点:动词短语,被动语态。 翻译句子:自从2008年,我的家乡发生了许多巨大的变化。 Many great changes in my hometown since 2008. 运动会将于下周五举行。. ●place短语:take the place of take one’s place in place of = instead of in place ▲区别:happen ①普通用词,表示发生与occur可以替换; ②碰巧vi. happen to do 碰巧做某事 break out (战争;灾害;病)突然爆发vi. 用happen, take place, break out的适当形式填空 1) I be out when my cousin called. 2) Olympics every four years. 3) It is reported that bird flu in some parts of Asia. 2. celebration n. [C]庆祝活动会;[U]庆祝--> v. ______________庆祝 ▲区别celebrate + 节日/生日/胜利/事件“庆祝…节日” congratulate + 人+ sth “祝贺某人” in celebration of 为…举行庆祝活动 be celebrated for _________________________ celebrity n. _______________________________ 练习:① All the teachers and students ________ National Day with a party. A. celebrated on B. celebrated C. congratulated on D. congratulated ② _________ to you _________ your great success! A. Celebration; for B. Celebrations; on C. Congratulation; for D. Congratulations; on 3. dress up 盛装;打扮 dress sb./ oneself ________________ (dress做及物动词,后面不接“衣服”,直接“人”。意思是“给…穿衣服”) sb be dressed in +___________ dress up as _________ ▲区别dress/put on/have on/wear ①dress 表动作。做vt.时,宾语是人,不能接衣服。 ②put on表动作。 ③have on表状态,无进行时。 ④wear表状态,除指穿衣戴帽之外,还指戴表、首饰及留发/胡须。 用dress up, dress, wear 的适当形式填空。 Although the boy is only three, he can himself. He often a blue coat, but yesterday he wore a white shirt.

人教版高中数学-必修三学案 3.2.1古典概型(1)

.§3.2 古典概型 3.2.1 古典概型(一) 【明目标、知重点】 1.了解基本事件的特点; 2.理解古典概型的概念及特点; 3.会应用古典概型概率公式解决简单的概率计算问题. 【填要点、记疑点】 1.基本事件的特点 (1)任何两个基本事件是互斥的; (2)任何事件(除不可能事件)都可以表示成基本事件的和. 2.古典概型的概念 如果某概率模型具有以下两个特点: (1)试验中所有可能出现的基本事件只有有限个; (2)每个基本事件出现的可能性相等; 那么我们将具有这两个特点的概率模型称为古典概率模型,简称古典概型. 3.古典概型的概率公式 对于任何事件A ,P (A )=A 包含的基本事件的个数基本事件的总数 . 【探要点、究所然】 [情境导学] 香港著名电影演员周润发在影片《赌神》中演技高超,他扮演的赌神在一次聚 赌中,曾连续十次抛掷骰子都出现6点,那么如果是你随机地来抛掷骰子,连续3次、4次、…、10次都是6点的概率有多大?本节我们就来探究这个问题. 探究点一 基本事件 思考1 抛掷两枚质地均匀的硬币,有哪几种可能结果?连续抛掷三枚质地均匀的硬币,有 哪几种可能结果? 答 (正,正),(正,反),(反,正),(反,反);(正,正,正),(正,正,反), (正,反,正),(反,正,正),(正,反,反),(反,正,反),(反,反,正),(反,反,反). 思考2 上述试验中的每一个结果都是随机事件,我们把这类事件称为基本事件.在一次试 验中,任何两个基本事件是什么关系? 答 由于任何两种结果都不可能同时发生,所以它们的关系是互斥关系.

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