第一篇:高中英語 unit1《Friendship》教案2 新人教版必修1
Period 3 Learning about language Teaching aims: 1.To discover and learn to use some words and expressions.2.To enable students to rewrite sentences using direct or indirect speech 3.To learn more information about Anne.4.To cultivate the spirit of cooperation, self-teaching and self-exploring.Teaching procedures: Step 1 Revision 1.Review something about “Anne’s best friend” by using some True-or-False sentences 1)A friend would laugh at you.()2)Anne lived in Amsterdam in the Netherlands during World War II.()3)She and her family hid away for one year before they were discovered.()4)She kept a diary as others did.()
5)She was fond of nature.()
6)She stayed awake in the night because she couldn’t sleep well.()7)She couldn’t go out as she liked.()2.Collect the sentences students think wonderful or difficult to understand.Sample sentences 1)She and her family hid away for nearly twenty-five months before they were discovered.2)I wonder if it’s because I haven’t been able to be outdoors for so long that I’ve grown so crazy about everything to do with nature.3)There was a time when a deep blue sky, the song of the birds, moonlight and flowers could never have kept me spellbound.4)The dark, rainy evening ,the wind, the thundering clouds held me entirely in their power.5)It was the first time in a year and a half that I’d seen the night face to face.Step 2 Language points 1.grow crazy about sth.對…狂熱,癡迷be crazy about …
eg.My cousin grows crazy about computer games.2.go through 1).To examine carefully 仔細閱讀或研究
I went through the students’ papers last night.2).To experience 經(jīng)歷,遭受或忍受
You really don’t know what we went through while working on this project.3.stay
v.to continue to be in a particular state or situatioin 系動詞,表是狀態(tài)。后跟名詞或形容詞,不能用于被動語態(tài)和進行時態(tài)。eg.He stayed single all his life.4.make/call + O +Noun(as O.C.)5.hide away
用心
愛心
專心
6.discover
Columbus discovered America in 1492.7.set down: to write down something so that you have a record of it: I want to set down my feelings on paper.Other verbal phrases of “set”
set aside: to keep some money or time for a special purpose set off: to start to go somewhere/ to cause a explosion set out: to start a journey/ to talk about something in an organized way set up: to start an organization/ to build something 8.ourdoors / indoors Don’t stay indoors since the weather is so fine.9.well
They speak well of him.Well done.10 on purpose
I came here on purpose to see you.11 in order to
In order to catch the train , she hurried through her work.12 too much/ much too entirely
For him, this will be an entirely new hobby.14 in one’s power / out of one’s powers 15 it was the first/second time that …
It is the first time that he has been in this city.It was the second time that he had made the same mistakes 16 face to face
I rushed out of the office and found myself face to face with the boss.17.far
adv.“過于;…得多” ,表示程度,經(jīng)常與too或形容詞、副詞的比較級連用。
eg.She speaks English far better than I.This room is far too warm.cf.very, much, far 18.dare 1)modal.v.多用于否定句、疑問句、條件狀語從句、whether(if)等名詞性從句或有否定意義的句中,后接動詞原形。沒有人稱和數(shù)的變化,其時態(tài)只有現(xiàn)在時和過去時。否定式在其后加not.eg.How dare he say such a word!
If you dare do that again, you’ll be punished.2)vt.敢,膽敢。有人稱、數(shù)和時態(tài)的變化。在否定句和疑問句中,dare后的to可保留也可省略。
eg.I wonder how he dare to day such words.19.happen to do sth.用心
愛心
專心
It so(just)happened that…不能用于進行時態(tài)。
eg.I happened to be out when he came.= It so happened that I was out when he came.用心
愛心 專心 3
第二篇:英語:unit1《Friendship》教案2(新人教必修1)(精選)
Period 3 Learning about language Teaching aims: 1.To discover and learn to use some words and expressions.2.To enable students to rewrite sentences using direct or indirect speech 3.To learn more information about Anne.4.To cultivate the spirit of cooperation, self-teaching and self-exploring.Teaching procedures: Step 1 Revision 1.Review something about “Anne’s best friend” by using some True-or-False sentences 1)A friend would laugh at you.()2)Anne lived in Amsterdam in the Netherlands during World War II.()3)She and her family hid away for one year before they were discovered.()4)She kept a diary as others did.()
5)She was fond of nature.()
6)She stayed awake in the night because she couldn’t sleep well.()7)She couldn’t go out as she liked.()2.Collect the sentences students think wonderful or difficult to understand.Sample sentences 1)She and her family hid away for nearly twenty-five months before they were discovered.2)I wonder if it’s because I haven’t been able to be outdoors for so long that I’ve grown so crazy about everything to do with nature.3)There was a time when a deep blue sky, the song of the birds, moonlight and flowers could never have kept me spellbound.4)The dark, rainy evening ,the wind, the thundering clouds held me entirely in their power.5)It was the first time in a year and a half that I’d seen the night face to face.Step 2 Language points 1.grow crazy about sth.對…狂熱,癡迷be crazy about …
eg.My cousin grows crazy about computer games.2.go through 1).To examine carefully 仔細閱讀或研究
I went through the students’ papers last night.2).To experience 經(jīng)歷,遭受或忍受
You really don’t know what we went through while working on this project.3.stay
v.to continue to be in a particular state or situatioin 系動詞,表是狀態(tài)。后跟名詞或形容詞,不能用于被動語態(tài)和進行時態(tài)。eg.He stayed single all his life.4.make/call + O +Noun(as O.C.)5.hide away
6.discover
Columbus discovered America in 1492.7.set down: to write down something so that you have a record of it: I want to set down my feelings on paper.Other verbal phrases of “set”
set aside: to keep some money or time for a special purpose set off: to start to go somewhere/ to cause a explosion set out: to start a journey/ to talk about something in an organized way set up: to start an organization/ to build something 8.ourdoors / indoors Don’t stay indoors since the weather is so fine.9.well
They speak well of him.Well done.10 on purpose
I came here on purpose to see you.11 in order to
In order to catch the train , she hurried through her work.12 too much/ much too entirely
For him, this will be an entirely new hobby.14 in one’s power / out of one’s powers 15 it was the first/second time that …
It is the first time that he has been in this city.It was the second time that he had made the same mistakes 16 face to face
I rushed out of the office and found myself face to face with the boss.17.far
adv.“過于;…得多” ,表示程度,經(jīng)常與too或形容詞、副詞的比較級連用。
eg.She speaks English far better than I.This room is far too warm.cf.very, much, far 18.dare 1)modal.v.多用于否定句、疑問句、條件狀語從句、whether(if)等名詞性從句或有否定意義的句中,后接動詞原形。沒有人稱和數(shù)的變化,其時態(tài)只有現(xiàn)在時和過去時。否定式在其后加not.eg.How dare he say such a word!
If you dare do that again, you’ll be punished.2)vt.敢,膽敢。有人稱、數(shù)和時態(tài)的變化。在否定句和疑問句中,dare后的to可保留也可省略。
eg.I wonder how he dare to day such words.19.happen to do sth.It so(just)happened that…不能用于進行時態(tài)。
eg.I happened to be out when he came.= It so happened that I was out when he came.
第三篇:高中英語必修1、2總目錄
總目錄: 上冊:
01、人教版高中英語必修1《Unit 1 Friendship-part1》特級教師輔導(dǎo)視頻名師講解
02、人教版高中英語必修1《Unit 1 Friendship-part2》特級教師輔導(dǎo)視頻名師講解
03、人教版高中英語必修1《Unit 1 Friendship-part3》特級教師輔導(dǎo)視頻名師講解
04、人教版高中英語必修1《Unit 2 English around the world-part1》特級教師輔導(dǎo)視頻
05、人教版高中英語必修1《Unit 2 English around the world-part2》特級教師輔導(dǎo)視頻
06、人教版高中英語必修1《Unit 2 English around the world-part3》特級教師輔導(dǎo)視頻
07、人教版高中英語必修1《Unit 3 Travel journal-part1》特級教師輔導(dǎo)視頻名師講解
08、人教版高中英語必修1《Unit 3 Travel journal-part2》特級教師輔導(dǎo)視頻名師講解
09、人教版高中英語必修1《Unit 3 Travel journal-part3》特級教師輔導(dǎo)視頻名師講解
10、人教版高中英語必修1《Unit 4 Earthquakes-part1》特級教師輔導(dǎo)視頻名師講解
11、人教版高中英語必修1《Unit 4 Earthquakes-part2》特級教師輔導(dǎo)視頻名師講解
12、人教版高中英語必修1《Unit 4 Earthquakes-part3》特級教師輔導(dǎo)視頻名師講解
13、人教版高中英語必修1《Unit 5 Nelson Mandelaa modern hero-part2》特級教師輔導(dǎo)視頻
15、人教版高中英語必修1《Unit 5 Nelson Mandela-a modern hero-part3》特級教師輔導(dǎo)視頻
下冊:01、人教版高中英語必修2《Unit 1 Cultural relics part1》特級教師輔導(dǎo)視頻名師教學(xué)
02、人教版高中英語必修2《Unit 1 Cultural relics part2》特級教師輔導(dǎo)視頻名師教學(xué)
03、人教版高中英語必修2《Unit 1 Cultural relics part3》特級教師輔導(dǎo)視頻名師教學(xué)
04、人教版高中英語必修2《Unit 2 The Olympic Games part1》特級教師輔導(dǎo)視頻名師教學(xué)
05、人教版高中英語必修2《Unit 2 The Olympic Games part2》特級教師輔導(dǎo)視頻名師教學(xué)
06、人教版高中英語必修2《Unit 2 The Olympic Games part3》特級教師輔導(dǎo)視頻名師教學(xué)
07、人教版高中英語必修2《Unit 3 Computers part1》特級教師輔導(dǎo)視頻名師教學(xué)
08、人教版高中英語必修2《Unit 3 Computers part2》特級教師輔導(dǎo)視頻名師教學(xué)
09、人教版高中英語必修2《Unit 3 Computers part3》特級教師輔導(dǎo)視頻名師教學(xué)
10、人教版高中英語必修2《Unit 4 Wildlife protection part1》特級教師輔導(dǎo)視頻名師教學(xué)
11、人教版高中英語必修2《Unit 4 Wildlife protection part2》特級教師輔導(dǎo)視頻名師教學(xué)
12、人教版高中英語必修2《Unit 4 Wildlife protection part3》特級教師輔導(dǎo)視頻名師教學(xué)
13、人教版高中英語必修2《Unit 5 Music part1》特級教師輔導(dǎo)視頻名師教學(xué)
14、人教版高中英語必修2《Unit 5 Music part2》特級教師輔導(dǎo)視頻名師教學(xué)
15、人教版高中英語必修2《Unit 5 Music part3》特級教師輔導(dǎo)視頻名師教學(xué)
第四篇:17_《牛頓第二定律》教案(新人教必修1)
牛頓第二定律
教學(xué)目標:
一、知識目標
1.理解加速度與力和質(zhì)量的關(guān)系;
2.理解牛頓第二定律的內(nèi)容,知道定律的確切含義;
3.知道得到牛頓第二定律的實驗過程。
二、能力目標
培養(yǎng)學(xué)生的實驗?zāi)芰?、分析能力和解決問題的能力。
三、德育目標
使學(xué)生知道物理中的一種研究問題的方法——控制變量法
教學(xué)重點
1.牛頓第二定律的實驗過程;
2.牛頓第二定律。
教學(xué)難點
牛頓第二定律的意義。
教學(xué)方法
實驗法、講授法、歸納法
教學(xué)用具
兩輛質(zhì)量相同的小車,光滑的水平板(一端帶有定滑輪);砝碼(一盒),細繩、夾子 課時安排 2課時
教學(xué)過程
一、導(dǎo)入新課
1.提問:什么是物體運動狀態(tài)的改變?物體運動狀態(tài)發(fā)生改變的原因是什么?
2.引入新課:
通過上節(jié)課的學(xué)習,我們已知道:物體運動狀態(tài)改變時產(chǎn)生加速度,而產(chǎn)生的加速度又和物體的質(zhì)量及所受力的大小有關(guān),那么:加速度跟物體所受力的大小及物體質(zhì)量之間有什么關(guān)系呢?本節(jié)課我們就來研究這個問題。
二、新課教學(xué)
(一)用投影片出示本節(jié)課的學(xué)習目標:
1.理解加速度與力的關(guān)系;
2.理解加速度與質(zhì)量的關(guān)系
3.理解牛頓第二定律的內(nèi)容。
(二)學(xué)習目標完成過程:
1、加速度和力的關(guān)系:
(1)用投影片出示本節(jié)課所用的實驗裝置,教師進行講解:圖中是兩輛質(zhì)量相同的小車,放在光滑的水平板上,小車的前端各系上細繩,繩的另一端跨過定滑輪各掛一個小盤,盤里放有數(shù)量不等的砝碼,使兩輛小車在不同的拉力下做勻加速運動。
(2)對本次實驗中說明的兩個問題
a:砝碼跟小車相比質(zhì)量較小,細繩對小車的拉力近似地等于砝碼所受的重力。
b:用一只夾子夾住兩根細繩,以同時控控制兩輛小車。
(3)實驗的做法:
a:在兩砝碼盤中放不同數(shù)量的砝碼,以使兩小車所受的拉力不同。
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b:打開夾子,讓兩輛小車同時從靜止開始運動,一段時間后關(guān)上夾子,讓它們同時停下來。
(4)需觀察的現(xiàn)象,觀察兩輛車在相等的時間里,所發(fā)生的位移的大小。(實驗現(xiàn)象:所受拉力大的那輛小車,位移大)
(5)分析推理:
a:由公式s1?at2得到在時間t一定時,位移s和加速度a成正比;
2b:由實驗現(xiàn)象得到:小車的位移與他們所受的拉力成正比。
c:推理得到結(jié)論:對質(zhì)量相同的物體,物體的加速度跟作用在物體上的力成正比,即:
a1F1?或a?F a2F2a1F1?a2F2
(6)鞏固練習:
a.據(jù)得到:要使物體在短時間內(nèi)速度的改變很大,即加速度很大,就必須給物體提供。
b.競賽用的小汽車,要求起動后幾秒鐘內(nèi)速度由零達到60m/s以上,他們?yōu)槭裁匆b備功率很大的發(fā)動機?
2:加速度和質(zhì)量的關(guān)系:
(1)實驗裝置同上;
(2)說明與前次實驗的不同。
前一次實驗中,我們是保持小車質(zhì)量不變,而改變小車所受力的大小,來研究加速度和力之間的關(guān)系的。
本次實驗是使兩輛小車所受拉力相同,而在一輛小車上加放砝碼的,以增大質(zhì)量,研究加速度和質(zhì)量之間關(guān)系的。
(3)實驗現(xiàn)象:
在相同的時間里,質(zhì)量小的那輛小車的位移大。
(4)分析推理,得到結(jié)論:
在相同的力作用下,物體的加速度跟物體的質(zhì)量成反比,即
a1/a2=m2/m1或a∝m3:牛頓第二運動定律
(1)綜合上述實驗中得到的兩個關(guān)系,得到下述結(jié)論:
物體的加速度跟作用力成正比,跟物體的質(zhì)量成反比,且加速度的方向跟引起這個加速度的力的方向相同。
(2)公式表示:
a∝F或者F∝ma m即:F=kma
a:如果每個物理量都采用國際單位,k=1;
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b:力的單位(牛頓)的定義:使質(zhì)量為1千克的物體產(chǎn)生1m/s2的加速度的力叫做1牛頓。
(3)推廣:上面我們研究的是物體受到一個力作用的情況,當物體受到幾個力作用時,上述關(guān)系可推廣為:
物體的加速度跟所受的合力成正比,跟物體的質(zhì)量成反比,加速度的放心跟合力的方向相同。即F合=ma。
(4)介紹F合和a的瞬時對應(yīng)關(guān)系
a:只有物體受到力的作用,物體才具有加速度。
b:力恒定不變,加速度也恒定不變。
c:力隨著時間改變,加速度也隨著時間改變。
d:力停止作用,加速度也隨即消失。
4:例題分析(課本例題)
(1)學(xué)生閱讀例題內(nèi)容
(2)分析:
??質(zhì)量m已知???必須先求F1和F2的合力,而合力的大小可
要求物體的加速度?以用作圖法求解,也可以用計算法求解。
(3)用投影片展示解題過程:
如圖所示,建立平面直角坐標系,把力F1和F2分別沿x軸和y軸的方向分解F1的兩個分力為:
F1x?F1xcos60o,F2y?F2sin60o
F2的兩個分力為:F2xo?F2cos60o,F2y?F2sin60
F1y和F2y大小相等,方向相反,相互抵消,F(xiàn)1x和F2x的方向相同,所以:
F合?F1x?F2x?F1cos60o?F2cos60o?5N?5N?10N
已知合力F合和質(zhì)量m,據(jù)F合=ma,即可求得:
10Na?F合??5m/s2
2kg
三:小結(jié)
1:本節(jié)課的研究方法——控制變量法
2:牛頓第二運動定律確定了a和F之間的大小關(guān)系,也確定的a和F的方向關(guān)系
3:求解合力時,可采用建立平面直角坐標系,將各個力沿x軸和y軸分解,最后求合力的方法。
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四、作業(yè)
課本P53練習二
五、板書設(shè)計:
?定律的實驗條件(控制變量法)??
1、m一定時,a?F???1???
2、F一定時,a?m? ??
3、把F?ma改寫成,在F,m,a取國際單位的?????條件下k?1??牛頓第二定律?內(nèi)容:物體運動的加速度與合外力成正比,與質(zhì)量成反比,且?加速度與合外力方向相同???F合和a的方向關(guān)系??1N?1kgm/s2?單位關(guān)系:???物理意義:?瞬時對應(yīng)關(guān)系??因果對應(yīng)關(guān)系???
?
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第五篇:高中數(shù)學(xué)《指數(shù)函數(shù)》教案1 新人教A版必修1
3.1.2指數(shù)函數(shù)
(二)教學(xué)目標:鞏固指數(shù)函數(shù)的概念和性質(zhì) 教學(xué)重點:指數(shù)函數(shù)的概念和性質(zhì) 教學(xué)過程:
本節(jié)課為習題課,可分以下幾個方面加以練習: 備選題如下:
1、關(guān)于定義域
x(1)求函數(shù)f(x)=??1??1的定義域
?9??(2)求函數(shù)y=1x的定義域
51?x?1(3)函數(shù)f(x)=3-x-1的定義域、值域是……()
A.定義域是R,值域是R
B.定義域是R,值域是(0,+∞) C.定義域是R,值域是(-1,+∞) D.以上都不對(4)函數(shù)y=1x的定義域是______ 5x?1?1(5)求函數(shù)y=ax?1的定義域(其中a>0且a≠1)
2、關(guān)于值域
(1)當x∈[-2,0]時,函數(shù)y=3x+1-2的值域是______(2)求函數(shù)y=4x+2x+1+1的值域.(3)已知函數(shù)y=4x-3·2x+3的值域為[7,43],試確定x的取值范圍.(4).函數(shù)y=3x3x?1的值域是() A.(0,+∞)
B.(-∞,1) C.(0,1)
D.(1,+∞)
(5)函數(shù)y=0.25x2?2x?12的值域是______,單調(diào)遞增區(qū)間是______.3、關(guān)于圖像
用心 愛心 專心 1
(1)要得到函數(shù)y=8·2-x的圖象,只需將函數(shù)y=(12)x的圖象()
A.向右平移3個單位
B.向左平移3個單位 C.向右平移8個單位
D.向左平移8個單位
(2)函數(shù)y=|2x-2|的圖象是()
(3)當a≠0時,函數(shù)y=ax+b和y=bax的圖象只可能是()