Period 2Language Study
Teaching aims
1．To learn the useful expressions and sentence structures.
2．To enable students to use language points both orally and in written forms.
Teaching procedures
Step 1Learning words and phrases
1．desire n．渴望；欲望；渴求；vt.希望得到；想要
Do you think it is possible for a robot to have its own needs and desires?
你认为机器人有可能有自己的需求和愿望吗？
[拓展]
(1)desire作名词时，可接不定式或者for短语作定语，还可以接that引导的同位语从句。
(2)desire作及物动词时的常见搭配：
desire sth./to do sth./sb.to do sth./that...
[注意]
desire作名词后接同位语从句以及作动词后跟宾语从句时，从句常常用虚拟语气，即“(should)＋动词原形”结构。
The teacher desires me to come to school on time.
＝The teacher desires that I should come to school on time.
2．test out 试验；考验
It was going to be_tested_out_by Larry' wife，Claire.
它将由拉里的妻子克莱尔来试验。
[拓展]
test sb.on sth.就某事(物)测试某人
test sth.on sb./sth.在某人(物)身上做试验
test sb.for sth.为某事检查某人
Mr.Li will test us on_ grammar next week.
下周李老师要检测我们的语法。
I am going to_test you for diabetes.
我将要检查你是否有糖尿病。
They have decided to test_the medicine on cats.
他们已决定在猫身上试验这种药。
3．alarm vt.使某人警觉；使惊恐；n.警报；惊恐
However，when she first saw the robot，she felt alarmed.
然而当她第一次看到那个机器人时，她害怕了。
Please give/raise/sound the alarm when you are trapped in danger.
当你处于危险境地时，请发出警报。
[拓展]
be alarmed at/by担心，害怕
give/raise/sound the alarm发警报
in alarm惊恐地
4．sympathy n．同情心
Claire thought it was ridiculous to be offered sympathy by a robot.
克莱尔觉得，机器人向她表示同情，这有点荒唐可笑。
[拓展]
(1)have/feel sympathy for sb.同情某人
play on sb.'s sympathy利用某人的同情心
be in sympathy with sb./sth.赞同/支持某人/某事
(2)sympathize v．表示同情，怜悯
sympathetic adj.有同情心的
I have_a_lot_of_sympathy_for him；he brought up his two children on his own.
我非常同情他，他独自把两个孩子养大。
You'd better not play_on_Tom's_sympathy.It's not polite.
你最好不要利用汤姆的同情心，那是不礼貌的。
We are_in_sympathy_with_your stand on lower taxes.
我们支持你关于减税的立场。
5．favour n．喜爱；恩惠；vt.喜爱，偏袒
As a_favour Tony promised to help Claire make herself smarter and her home more elegant.
托尼为让克莱尔高兴，答应帮助她，使她变得更漂亮，使她的家变得更高雅大方。
A teacher must not show favour to one student more than another.
教师不应该偏爱某一个孩子。
Personally，I favour the latter one.
就我个人而言，我喜欢后者。
[拓展]
in favour of支持，赞同
do sb.a favour/do a favour for sb.帮某人一个忙
ask sb.a favour/ask a favour of sb.请某人帮个忙
Are you_in_favour_of_the decision?
你支持这个决定吗？
Now that you are not busy，why not do_him_a_favour/_do_a_favour_for_him?
既然你不忙，为什么不帮他个忙呢？
6．accompany vt.陪伴；伴舞
accompany sb.to someplace陪伴某人去某地
accompany sb.at/on...用……为某人伴奏
accompany sb.in doing sth.陪某人做某事
注意：不能用accompany sb.to do sth.结构
As he was not allowed to accompany_her_to_the_shops，he wrote out a list of items for her.
因为克莱尔不让托尼陪她去商店，所以托尼就给她写了份购物清单。
She asked her teacher to accompany_her_on/at the piano at the concert.
她请她的老师在音乐会上为她钢琴伴奏。
Will you please_accompany_me_in travelling to Shanghai on business?
请陪我去上海出差好吗？
7．ring up 给……电话
When the clerk at the counter was rude to her，she rang_Tony_up and told the clerk to speak to him.
当站台的售货员对她粗鲁时，她就打电话给托尼，让售货员同托尼说话。
I will ring_you_up as soon as he arrives.
他一来我就给你打电话。
[拓展]
call sb.(up)；phone/telephone sb.；give sb.a call/a ring/a phone call打电话给某人
call/ring back回电话
ring off/hang up挂断电话
hold on别挂断
8．turn around＝turn round 转向，回转
As she turned_around，there stood Gladys Claffern.
她一转身，就看到格拉迪斯·克拉芬站在那儿。
The students began to whisper when the teacher turned_around/round.
老师一转身，学生们就开始窃窃私语。
[拓展]
turn against 反对
turn back 折回，掉回头
turn down 拒绝
turn in 上交
turn out 结果是；生产
turn to求助于；翻到(某页)
turn up 开大，出现
So far，she has turned_him_down_three times.
到目前为止，她已经拒绝了他三次了。
The stranger we met yesterday turned_out to be Tom's father.
昨天，我们遇到的那个陌生人原来是汤姆的父亲。
He didn't know who to turn to.
他不知道向谁去求助。
9．declare vt.宣布，声明
She cried out “Tony” a nd then heard him declare that he didn't want to leave her the next day and that he felt more than just the desire to please her.
她大叫一声“托尼”，然后听到托尼一本正经地说，明天他不想离开她，而且他并不满足仅仅使她开心。
declare for/against sb./sth.声明支持/反对某人/某事
declare sb./sth.(to be)＋n./adj.宣布/宣称……为……
declare sth./that...宣布；宣称；声明
declare war on/against...向……宣战
He decided to_declare_for_the North.
他决定声明支持北方。
The doctor finally declared_that the woman was dead.
医生最后宣布该妇女死亡。
The use of certain chemicals_has_been_declared_illegal_recently.
近来某些化学品的使用被宣布为非法。
They have now declared_war_on/against drug dealers in the area.
他们现已对该区的毒贩宣战。
10．leave...alone 不管；别惹；让……一个人待着；和……单独在一起
She shouted “Leave_me_alone” and ran to her bed.
她高声喊：“让我独自待一会儿！”然后就跑上床。
Why not leave_him_alone?
为什么不让他一个人待一会儿？
[拓展]
leave...alone＝let...alone
leave aside 搁置一边
leave...behind 遗忘；把……抛弃在后面
leave off中断，停止
leave out 遗漏，省去；不提及
leave over 剩下；残留
[提醒]
let alone 还可以表示“更不用说”的意思，而leave...alone不能。
Let's start again from where we left off.
让我们从中断处重新开始。
Mike left out a zero in the telephone number.
迈克在电话号码中遗漏了一个零。
11．His name was Tony and he seemed more like a human than a machine.
他的名字叫托尼，与其说他看上去像一台机器，倒不如说更像一个人。
more...than...与其说……倒不如说……
He is more_my friend than my teacher.
与其说他是我的老师倒不如说他是我的朋友。
The boy is more_lazy than_stupid.
与其说这男孩笨倒不如说他懒。
[拓展]
more than多于；超过；不仅仅
not more than不超过
no more than仅仅＝only
Mr.Zhang is more_than our teacher and he is our friend.
张老师不仅仅是我们的老师，还是我们的朋友。
Please don't be so angry.After all，she is_no_more_than_a child.
请不要如此生气，毕竟她还只是一个孩子。
12．She cried out “Tony” and then heard him declare that he didn't want to leave her the next day and that he felt more than just the desire to please her.
她大叫一声托尼，然后托尼一本正经地说，第二天他不想离开她，而且他并不满足仅仅使她开心。
这是一个复合句，declare that...please her作hear sb.do结构中的宾语补足语，其中declare后面又接了两个that引导的宾语从句，第一个that可以省略，而第二个that则不能省略。
I'd like to tell you (that) he is too young and that_he isn't fit for the job.
我想告诉你他太年轻不适合这个工作。
Step 2Using words and phrases
Do Exercises 1 and 2 on Page 13 in Learning about Language.
Keys：
Exercise 1：1.satisfaction，tested out 2.sympathy 3.leave...alone 4.desire 5.ring...up 6.scanned7.absurd8.declared
Exercise 2：scan，favour，cushions/beddings，beddings/cushions，clerks，awful，turn around，alarms，declaring
Step 3Consolidation
Ask students to retell the text after learning the useful words and phrases.
Step 4Homework
1．Finish off Exercises 1 and 2 on Page 55 in Using Words and Expressions.
2．Go over useful words and phrases in the text.
第4讲Robots 语法篇 __________________________________________________________________________________ __________________________________________________________________________________ 1.掌握各个时态的被动语态的结构与用法； 2.能够熟练运用被动语态解题造句。 一. 含义与构成 1. 被动语态表示句中的主语接受谓语动作，也就是说，主语是谓语动作的承受者。谓语动词用作被动语态的句子叫做被动句。 2. 构成：be + 过去分词(be有时可用become 或get代替), be随着主语的人称、数、时态和语气的不同而变化。 3. 被动语态的各种时态形式有： 一般时态：be + 过去分词 English is spoken in many countries. Romeo and Juliet was written by Shakespeare. Many believe that one day the earth will be destroyed if people do not learn to live in peace. 进行时态：be + being + 过去分词 His plan is being carried out successfully. The new curtains were being hung when the visitors showed up. The car will be being cleaned by my brother. 完成时态：have + been + 过去分词 I’ve been robbed. The outcome of the election was announced before all of the votes had been counted. Everything will have been done by the end of this month. 二. 用法 1. 强调动作的承受者： Frank was hit by a car.
高中英语学习材料 madeofjingetieji 高二英语BOOK 7第四单元 一．单词拼写： 1.有关的, 切题的______________ 2.调整，使适合__________ 3.平（月）台，讲台______________ 4.剩余物（饭）__________ 5.特权，特别优待______________ 6.安排，排列__________ 7.宇航员，太空人______________ 8.目录__________ 9.买，购买______________ 10.周年记念__________ 11.收入______________ 12.参与，参加____________ 13.经济（学）的______________ 14.政治（党）的__________ 15.财务的，金融的______________ 16.安全，保护__________ 17.操作，运转______________ 18.遥远的，偏僻的________ 19.捐赠n. ______________ 20.小诊所__________ 二．请写出下列短语： 1. 收到……的信__________________ 2.极想；渴望_______________ 3.偶然遇到或发现，碰见____________ 4.调整，使适合_____________ 5.完全变干；干透_________________ 6. 干涸_____________ 7.在困难中；在危急中______________ 8. 代表______________ 三．根据中文提示写出正确的单词： 1. A ___________（讲台）is a raised flat structure, usually made of wood, which people stand on when they make speeches or give a performance. 2. When you ___________ （购买）something, you buy it. 3. When you __________（适应，调整）to a new situation, you get used to it by changing your ideas. 4. If you ___________（认出，承认）someone, for example, with a nod or a smile, you
Period 2Language Study 设计方案(一) Teaching aims 1．To learn the useful expressions and sentence structures. 2．To enable students to use language points both orally and in written forms. Teaching procedures Step 1Learning words and phrases 1．desire n．渴望；欲望；渴求；vt.希望得到；想要 Do you think it is possible for a robot to have its own needs and desires? 你认为机器人有可能有自己的需求和愿望吗？ [拓展] (1)desire作名词时，可接不定式或者for短语作定语，还可以接that引导的同位语从句。 (2)desire作及物动词时的常见搭配： desire sth./to do sth./sb.to do sth./that... [注意] desire作名词后接同位语从句以及作动词后跟宾语从句时，从句常常用虚拟语气，即“(should)＋动词原形”结构。 The teacher desires me to come to school on time. ＝The teacher desires that I should come to school on time. 2．test out 试验；考验 It was going to be_tested_out_by Larry' wife，Claire. 它将由拉里的妻子克莱尔来试验。 [拓展] test sb.on sth.就某事(物)测试某人 test sth.on sb./sth.在某人(物)身上做试验 test sb.for sth.为某事检查某人 Mr.Li will test us on_ grammar next week. 下周李老师要检测我们的语法。 I am going to_test you for diabetes. 我将要检查你是否有糖尿病。 They have decided to test_the medicine on cats.] 他们已决定在猫身上试验这种药。 3．alarm vt.使某人警觉；使惊恐；n.警报；惊恐 However，when she first saw the robot，she felt alarmed. 然而当她第一次看到那个机器人时，她害怕了。 Please give/raise/sound the alarm when you are trapped in danger. 当你处于危险境地时，请发出警报。 [拓展] be alarmed at/by担心，害怕 give/raise/sound the alarm发警报 in alarm惊恐地 4．sympathy n．同情心
A Letter Home 知识目标 1. Make the students know about basic information of PNG. 2. Establish the consciousness of helping others 能力目标 1.Let the students talk about the information from the photos. 2. Develop the students’ reading ability. 情感目标 1. Arouse stud ents’ great interest in being a volunteer. 2. Develop student’ sense of cooperation learning. 教学重点： 1.Talk about Jo’s experience with the target language and useful expressions. 2.Get students to know the customs and lives of the poeple in Tombe’s village. 3.Get students to learn different reading skills. 教学难点： 1. Develop students’ reading ability. 2.Enable students to learn to talk about being a volunte. 教学过程： stepⅠ Greetings & Lead-in 1.Greet the students as usual. 2.A sketch played by students. StepⅡ Warming up 1. Ask students some questions and then make a definition of volunteer Have you ever helped your parents, or other relatives, or your friends? Have you ever helped people in your community or people outside your community? 2. Show some pictures and let the students speak out what the volunteers are doing. StepⅢ Pre-reading 1. Introduce Papua New Guinea (PNG) 2. Look at the photos from Jo and answer the following questions: 1) What was Jo’s job in PNG? 2) What kind of students ware in her class? Boys, girls, or both?
教学目标： 1．通过大量实例的分析，经历由平均变化率过渡到瞬时变化率的过程，了解导数概念的实际背景，体会导数的思想及其内涵； 2．会求简单函数的导数，通过函数图象直观地了解导数的几何意义； 3．体会建立数学模型刻画客观世界的“数学化”过程，进一步感受变量数学的思想方法． 教学重点： 导数概念的实际背景，导数的思想及其内涵，导数的几何意义． 教学难点： 对导数的几何意义理解． 教学过程： 一、复习回顾 1．曲线在某一点切线的斜率． ()()PQ f x x f x k x ＋－＝??（当?x 无限趋向0时，k PQ 无限趋近于点P 处切线斜率） 2．瞬时速度． v 在t 0的瞬时速度＝00()()f t t f t t ??＋－ 当?t →0时． 3．物体在某一时刻的加速度称为瞬时加速度． x
v 在t 0的瞬时加速度＝ 00()()v t t v t t ??＋－ 当?t →0时． 二、建构数学 导数的定义． 函数y ＝f （x ）在区间（a ，b ）上有定义，x 0∈(a ，b )，如果自变量x 在x 0处 有增量△x ，那么函数y 相应地有增量△y ＝f (x 0＋△x )－f (x 0)；比值 y x ??就叫函数y ＝f （x ）在x 0到（x 0＋△x ）之间的平均变化率，即00()()f x x f x y x x +?-?=??．如果当0x ?→时，y A x ?→?，我们就说函数y ＝f （x ）在点x 0处可导，并把A 叫做函数y ＝f （x ）在点x 0处的导数，记为0x x y =' ， 0'000()()(),0x x f x x f x y y f x x x x =+?-?'===?→??当 三、数学运用 例1 求y ＝x 2＋2在点x ＝1处的导数. 解 ?y ＝－(12＋2)＝2?x ＋(?x )2 y x ??＝2 2()x x x ???＋＝2＋?x ∴y x ??＝2＋?x ，当?x →0时，1x y '∣＝＝2． 变式训练：求y ＝x 2＋2在点x ＝a 处的导数. 解 ?y ＝－(a 2＋2)＝2a ?x ＋(?x )2 y x ??＝2 2()a x x x ???＋＝2a ＋?x ∴y x ??＝2a ＋?x ，当?x →0时，y '＝2a ． 小结 求函数y ＝f (x )在某一点处的导数的一般步骤： （1）求增量 ?y ＝f (x 0＋?x )－f (x 0)； （2）算比值 y x ??＝00()()f x x f x x ??＋－； （3）求0x x y '∣＝＝y x ??，在?x →0时． 四、建构数学 导函数．
新课标人教版选修七Unit2 Robots（单元测试） I.短语翻译（20％） 1 考验_________________ 2 不管，别惹，让…一个人待着__________________ 3同情某人_________________ 4 转向，回转_________________ 5 打电话给_______________ 6 将…放在一边，为…保留/节省_______________ 7让某人做某事_________________ 8 被用来做某事_________________ 9更确切地说_________________ 10 陪伴某人去某地_________________ 11设法做成了某事_________________ 12 伸手去够…_________________ 13 在…方面有天赋_________________ 14 曾经，一度_________________ 15 获得硕士学位_________________ 16认真对待_________________ 17对…印象深刻_______________ _ 18用…做实验，以…尝试_____________ 19提高社会地位20面部表情 II.单词拼写（20％） 1.When I began to sing, he laughed and made me e_____________. 2. They get ___________（离婚）two years ago. 3. The minister was _________ （陪伴）by his secretary to the US. 4. My sister’s wedding _________（典礼）took place at 12 sharp. 5. I ________（宣布）at the meeting that I did not support him. 6.The only __________（解释）for his behavior is that he’s mad. 7.With the teacher’s help, she s_________ away all the difficulties she had met. 8.My mother was __________(担心的，害怕的) when I fell over. 9.We had an _________（可怕的）earthquake here last year. 10.I don’t think the chair is f_________ enough to stand on. Complete the words according to the initials. 11.When his uncle died, he received many letters and calls of s__________. 12.Tony is s_________the guidebook for information about Hawaii, where he will travel soon. 13.There were strong winds a__________ by heavy rain last night. 14.India d_________independence in 1947. 15.I hope they don’t ask e_________ questions, for I will be e________ at them. 16.They had a d________ that I attend their wedding. 17.Rita couldn’t provide a s_________ excuse for his absence. 18.I am so e__________ of your getting an extra day’s holiday. 19.The rainforest is disappearing at an a___________ rate. 20.They were accused of interfering in China’s internal a________. III.完成句子（10％） 1.It is said that the president has (有风流韵事) a beautiful actress. 2.The door needs_______________（油漆）. 3.If you don’t _____ your study_________,（认真对待）you will fail in the coming examination. 4.They looked “the great man” up and down (带着好奇). 5. The farmer tried to _________their crops ________cold.(保护…不被冻坏) 6.She felt _________ （好像）she were floating in the air.
Unit 4 Sharing 单元练测卷 （时间：90分钟满分：120分） Ⅰ. 单项填空（共15小题；每小题1分，满分15分）从A、B、C、D四个选项中选出可以填入空白处的最佳选项。 1. First impressions are the most lasting. After all, you never get __________ second chance to make __________ first impression. A. a; the B. the; the C. a; a D. the; a 2. Do you know when the European sky will be open? The passengers are __________ to know it. A. agreeing B. dying C. deciding D. desiring 3. —Did you remember to give Mary the money you owed her? —Yes, I gave it to her________ I saw her. A. while B. the moment C. suddenly D. once 4. A truly creative person is able to __________ with fresh ideas from a story told time after time. A. come on B. come along C. come up D. come out 5. —What do you think of their marriage? —__________ , if I were Kate, I would not marry him. A. Generally speaking B. I have no idea C. To be honest D. To my surprise 6. If you have a job, __________ yourself to it and finally you'll succeed. A. do devote B. don't devote C. devoting D. not devoting 7. The patient __________ seeing the doctor himself. A. stuck to B. insist on C. insisted D. insists 8. Something is wrong with my camera. It can't be __________ to take a better picture. A. adapted B. adjusted C. adopted D. reminded 9. Fu Mingxia __________ the Sydney Olympic Games, where she __________ all the other competitors and got the gold medal in the women's 10-metre platform. A. participated in; beat B. participated in; won C. participated; beat D. participated; won 10. I'm glad that you told me about the show being called off. __________ I'd have arrived in Glasgow for nothing. A. Then B. Besides C. Therefore D. Otherwise 11.—It is ridiculous that so many people believe the world will disappear in 100 years. —__________ it is true? A. How come B. So what C. What if D. How about 12. That's the new machine __________ parts are too small to be seen. A. that B. which C. whose D. what 13. Many famous stars are joining in public activities to collect money for people __________ after the earthquake. A. in brief B. in public C. in action D. in need 14. Because he saw the machine for the first time, the little boy was dying to know how to __________ it. A. benefit B. balance C. concern D. operate 15. —Have you played baseball before? We need one more player. —__________ . I like ball games, so I believe it will be fun to learn baseball. A. Sometimes B. Not really C. Never mind D. That's cool Ⅱ. 完形填空（共20小题；每小题1.5分，满分30分）阅读下列短文，掌握其大意，然后从16~35各题所给的四个选项（A、B、C和D）中，选出最佳选项。 Two years ago, I donated my kidney（肾）to my brother. I considered it a complete life-changing experience, not only for the two of us __16__ for the entire family. We ended up __17__ from surgery（外
课题：椭圆及其标准方程 教材：普通高中课程标准试验教科书——《数学》选修2-1 一、教材分析： 《椭圆及其标准方程》是高中数学新教材选修2—1第二章第二节的第一课时。从知识上说，它是运用坐标法研究曲线的几何性质的又一次实际演练，同时它也是进一步研究椭圆几何性质的基础；从方法上说，它为后面研究双曲线、抛物线提供了基本模式和理论基础；所以说，无论从教材内容，还是从教学方法上都是起着承上启下的作用，它是学好本章内容的关键。因此搞好这一节的教学，具有非常重要的意义。 二、教学目标分析： （一）知识与技能目标: 准确理解椭圆的定义,掌握椭圆的标准方程及其推导. （二）过程与方法目标: 通过引导学生亲自动手尝试画图、发现椭圆的形成过程进而归纳出椭圆的定义,培养学生观察、辨析、归纳问题的能力. （三）情感态度与价值观目标： （1）通过椭圆定义的获得培养学生探索数学的兴趣. （2）通过师生、生生的合作学习，增强学生团队协作能力的培养，增强主动与他人合作交流的意识. 三、教学重点、难点： （一）．重点：椭圆定义及其标准方程 （二）．难点：椭圆标准方程的推导 四、教学方法与教学手段
采用启发和探究式教学相结合的教学模式，即在教师的引导下，创设情境，学生利用课前准备的工具亲自动手画出椭圆，并讨论椭圆上的点满足的条件，以此来充分调动学生学习的主动性和积极性，发展学生数形结合，等价转换等思想，培养学生综合运用知识解决问题的能力。 教学手段：计算机课件辅助教学。 五、教学过程： （一）认识椭圆，探求规律: 1．对椭圆的感性认识.通过演示课前老师准备的有关椭圆的图 片，让学生从感性上认识椭圆. 2．通过演示动画，展示椭圆的形成过程，使学生认识到椭圆是 点按一定“规律”运动的轨迹. （二）动手实验，亲身体会 用上面所总结的规律，指导学生互相合作（主要在于动手），体验画椭圆的过程（课前准备细绳），并以此了解椭圆上的点的特征. 请两名同学上黑板画 （三）归纳定义，完善定义 我们通过动画演示，实践操作，对椭圆有了一定的认识，下面由同学们归纳椭圆的定义. 椭圆定义：平面内与两个定点21,F F 的距离的和等于常数（大于||21F F =2c ）的点的轨迹叫做椭圆。这两个定点叫做椭圆的焦点，两焦点的距离叫做椭圆的焦距．
高中数学人教版选修2-1全套教案 第一章常用逻辑用语 日期： 1.1.1命题 （一）教学目标 １、知识与技能：理解命题的概念和命题的构成，能判断给定陈述句是否为命题，能判断命题的真假；能把命题改写成“若p，则q”的形式； ２、过程与方法：多让学生举命题的例子，培养他们的辨析能力；以及培养他们的分析问题和解决问题的能力； ３、情感、态度与价值观：通过学生的参与，激发学生学习数学的兴趣。 （二）教学重点与难点 重点：命题的概念、命题的构成 难点：分清命题的条件、结论和判断命题的真假 教具准备：与教材内容相关的资料。 教学设想：通过学生的参与，激发学生学习数学的兴趣。 教学时间 （三）教学过程 学生探究过程： 1．复习回顾 初中已学过命题的知识，请同学们回顾：什么叫做命题？ 2．思考、分析 下列语句的表述形式有什么特点？你能判断他们的真假吗？ （1）若直线a∥b，则直线a与直线b没有公共点． （2）2+4=7． （3）垂直于同一条直线的两个平面平行． （４）若x2=1,则x=1． （５）两个全等三角形的面积相等． （６）３能被２整除． 3．讨论、判断 学生通过讨论，总结：所有句子的表述都是陈述句的形式，每句话都判断什么事情。其中（1）（3）（5）的判断为真，（2）（4）（6）的判断为假。 教师的引导分析：所谓判断，就是肯定一个事物是什么或不是什么，不能含混不清。 4．抽象、归纳 定义：一般地，我们把用语言、符号或式子表达的，可以判断真假的陈述句叫做命题．命题的定义的要点：能判断真假的陈述句． 在数学课中，只研究数学命题，请学生举几个数学命题的例子．教师再与学生共同从命题的定义，判断学生所举例子是否是命题，从“判断”的角度来加深对命题这一概念的理解．
Period 2Speaking 教学目标 1．语言知识目标： (1)掌握以下重点单词和短语的用法,并能加以运用： in the future,share...with...,soc ial welfare programme,afford,sponsor,donate,cover,primary school,participate in (2)熟悉以下句式： Why would you...? How could you do that? Because I want to share with others... First,find some information through... The reason is that... Then...Next...Finally... 2．语言能力目标： 学生能够使用时间表达法介绍一个人的生平或经历. 3．情感态度与文化意识目标： 了解“希望工程”及其他助人组织的情况,使学生懂得珍惜自己所拥有的,同时尽自己所能去帮助需要帮助的人. 重点难点 1．教学重点：使学生能够列出某一个看法的几点原因,知道如何表达和支持某一个观点2．教学难点：能够用英语准确地表达自己的想法,并且快速找到支持自己观点的论据教学方法 讨论与口头表达观点 教学过程 Step 1Checking the homework Step 2Discussion T：We listened to the interview about Dr Mary Murray.From the interview,we know that she worked for MSF and helped people in poor areas as a volunteer. Q1：Do you think whether people like Dr Mary Murray and Professor Fred Hollows should help those in poorer areas？Give your reasons. (Four students a group and have a discussion.Then ask some of them to present their opinions and reasons.) S1：In my opinion,Dr Mary Murray and Professor Fred Hollows should help those in poorer areas.And I would like to be a volunteer if possible.Th e reason is that we,either poor or rich,live on the same planet.Just as John F．Kennedy said in his inaugural address,“If a free society cannot help the many who are poor,it cannot save the few who are rich.” S2：Humanism or humanitarianism is a necessary quality for us human beings.We should share what we have and help those who are badly in need of help.I will become a volunteer if time permits.Actually I often help those who need help.For example,every Sunday,I take my neighbour,a disabled girl,to the park to refresh herself.And we talk a lot,and I think I help her a lot,which makes me very happy. S3：I agree with them,but I think the most important thing is that we should try to help the
椭圆及其标准方程(2) 1．掌握点的轨迹的求法； 2．进一步掌握椭圆的定义及标准方程． 4142 ，文P34~ P36找出疑惑之处） 复习1：椭圆上 22 1 259 x y +=一点P到椭圆的左焦点 1 F的距离为3，则P到椭圆右焦点 2 F的距 离 是． 复习2：在椭圆的标准方程中,6 a=,b则椭 圆的标准方程是． 二、新课导学 ※学习探究 问题：圆22650 x y x +++=的圆心和半径分别是什么? 问题：圆上的所有点到(圆心)的距离都等于(半径) ； 反之,到点(3,0) -的距离等于2的所有点都在 圆上． ※典型例题 例1在圆224 x y +=上任取一点P，过点P作x轴的垂线段PD，D为垂足.当点P在圆上运动时，线段PD的中点M的轨迹是什么？
变式： 若点M 在DP 的延长线上，且32 DM DP =，则点M 的轨迹又是什么？ 小结：椭圆与圆的关系：圆上每一点的横（纵）坐标不变，而纵（横）坐标伸长或缩短就可得到椭圆． 例2设点,A B 的坐标分别为()()5,0,5,0-，.直线,AM BM 相交于点M ，且它们的斜率之积是49 -，求点M 的轨迹方程 ． 变式：点,A B 的坐标是()()1,0,1,0-，直线,AM BM 相交于点M ，且直线AM 的斜率与直线BM 的斜率的商是2，点M 的轨迹是什么？ ※ 动手试试
练1．求到定点()2,0A 与到定直线8x =的动点的轨迹方程． 练2．一动圆与圆22650x y x +++=外切，同时与圆226910x y x +--=内切，求动圆圆心的轨迹方程式，并说明它是什么曲线． 三、总结提升 ※ 学习小结 1. ①注意求哪个点的轨迹，设哪个点的坐标，然后找出含有点相关等式； ②相关点法：寻求点M 的坐标,x y 与中间00,x y 的关系，然后消去00,x y ，得到点M 的轨迹方程． ※ 知识拓展 椭圆的第二定义： 到定点F 与到定直线l 的距离的比是常数e (01)e <<的点的轨迹． 定点F 是椭圆的焦点； 定直线l 是椭圆的准线； 常数e 是椭圆的离心率． ※ 自我评价 你完成本节导学案的情况为（ ）. A. 很好 B. 较好 C. 一般 D. 较差 ※ 当堂检测（时量：5分钟 满分：10分）计分：
教学目标： 1．能根据导数的定义推导部分基本初等函数的导数公式； 2．能利用导数公式求简单函数的导数． 教学重点： 基本初等函数的导数公式的应用． 教学过程： 一、问题情境 1．问题情境． （1）在上一节中，我们用割线逼近切线的方法引入了导数的概念，那么如何求函数的导数呢？ （2）求曲线在某点处的切线方程的基本步骤： ①求出P 点的坐标； ②利用切线斜率的定义求出切线的斜率； ③利用点斜式求切线方程． （3）函数导函数的概念
2．探究活动． 用导数的定义求下列各函数的导数： 思考由上面的结果，你能发现什么规律？ 二、建构数学 1．几个常用函数的导数： 思考由上面的求导公式（3）～（7），你能发现什么规律？ 2．基本初等函数的导数：
三、数学运用 例1 利用求导公式求下列函数导数． （1）5y x -＝； （2）y (3)πsin 3 y ＝； （4）4x y ＝； （5）3log y x ＝； （6）πsin()2 y x ＝＋； （7）cos(2π)y x ＝－． 例2 若直线y x b ＝－＋为函数1y x ＝图象的切线，求b 及切点坐标． 点评 求切线问题的基本步骤：找切点—求导数—得斜率． 变式1 求曲线2y x ＝在点(1，1)处的切线方程． 变式2 求曲线2y x ＝过点 (0，－1)的切线方程． 点评 求曲线“在某点”与“过某点”的切线是不一样的． 变式3 已知直线l ：1y x ＝－，点P 为2y x ＝上任意一点，求P 在什么位置时到直线l 的距离最短． 练习： 1．见课本P20练习． 第3题： ； 第5题： （1） ； （2） ；
核心单词 1.desire n. 渴望vt. 想要 常用结构：desire sth. 渴望得到某物 desire to do sth. 希望/渴望做某事 desire that sb. (should) do 要求…… have a desire for sth./to do sth. 渴望得到某物/希望做某事 at one’s desire 照某人的希望 We all desire happiness and health.我们都希望幸福健康。 Everyone has a desire for success, but not everyone desires to get rich. 每个人都渴望成功，但并非人人都渴望金钱。 He desires you to go to see him at once. =He desires that you should go to see him at once. 他要求你马上去见他。 翻译句子（原创） ①他想接受大学教育。 ②他们要我快点回来。 ③我请他立即回信。 ④她要你立即见她。 ⑤她应邀演奏了一曲。 解析：①He desired a college education. ②They desire me to return soon. ③I desire an immediate answer of his. ④She desires that you (should) see her at once. ⑤She played a piece at others’desire/by desire. 2.alarm n.警报vt.使……惊恐 We were much alarmed by the fire in the forest. 森林失火使我们大为惊慌。 常用结构：give /raise the alarm 发警报 ring the alarm 敲警钟 sound the alarm 发警报; 吹警报号 take (the) alarm at 对……感到吃惊; 因……而惊恐 be alarmed at ... 被……吓一跳 As soon as he saw the smoke, he sounded the alarm. 一看见烟雾，他就鸣响了警报。 翻译句子 ①看到孩子们在返校时遭遇车祸的消息，家长们很害怕。 ②看到大火，社区的居民发出警报。 答案：①The parents took (the) alarm at the news that their children caught a traffic accident when returning the school. ②The residents in the community raised the alarm when seeing the great fire. 3.accompany vt. 陪伴 常用结构：accompany sb. to a place 陪伴某人去某地 accompany sth. with/by sth. 与……同时存在 He accompanied his old father to the hospital to see what’s wrong with his stomach. 他陪他的老父亲去医院查看胃部出了什么问题。
BOOK 7 Unit4 Sharing 重点词汇与短语： relevant adjust purchase participate donate voluntary otherwise dying to come across stick out in need dry out the other day 重点句型： It is/was+ adj./ n. +(for sb. )+to do… 重点词汇 relevant 【原句回放】 Sometimes I wonder how relevant chemistry is to the kids||，most of whom will be going back to their villages after year 8. （Page 29） 【点拨】 relevant：adj. connected with the subject or be connected with 有关的; 恰当的||，贴切的||，切题的 常用搭配：be relevant to 1）His nationality is not relevant to whether he is a good lawyer. 他的国籍与是否是个好律师无关||。 2）This type of university course is no longer relevant to today’s problem. 这种大学课程与目前问题不再有关联了||。 【拓展】relevance 用作名词||，也可以说relevancy；其反义词是ir relevant；adjust 【原句回放】The hut was dark inside||，so it took time for our eyes to adjust. （Page 30）