安徽省高三英语一轮复习 M2 Unit 4 Cyberspace精品学案 北师大版
Unit4 Cyberspace Module2
课堂点拨
likely, probable与possible
① 三者均表可能性，但意思上有一点点区别。possible指客观上有可能性，但往往含有希望很小的意思；probable比possible可能性大，表“很有可能，大概”，指有实际依据或逻辑上的合情合理；likely是从外表迹象进行判断有可能发生的事。
1、
It is possible, though not probable, that he will come tomorrow. 他明天可能来，但也不一定准会来。
The probable cause of his failure was that he had been too tired. 他失败大概是太累了的原因。
She's very likely to ring me tonight.
今晚她很可能给我来电话。
② 句型结构上的异同
It is possible/probable/likely that S. ＋V
It is possible for sb. to do sth.
sb./sth. is likely to do sth.
It is possible for me to do it. 我可能做那件事。
(不能说I'm possible to do it.)
It is most likely that he will come this afternoon.＝He is most likely to come this afternoon.今天下午他很有可能会来。
①名词前有all, every, the only, the best或其他形容词最高级修饰时，possible宜置于名词之后，作后置定语。
This is the only way possible. 这是唯一可能的方法。
②可以说I'll study as hard as possible(＝as I can). 不能说I'll study hard as possible as I can.
③probable也不能用人作主语或构成复合宾语，表示某人做某事，只能用It is probable that…句型。
It is probable that the cost will be greater than we think.
花费很可能比我们料想的要大。
完成句子。
1. 在月球上生活是不可能的。
It's not possible to live on the moon.
2. 你可能已经把它忘记了。
You're likely to have forgotten about it.
2、come true
His wish to be an actor has come true.
他想当演员的愿望实现了。
come true与realize
①come true指愿望实现，预言成真，不可用于被动语态。
②realize是及物动词，可用于被动语态。
汉译英。
1. 我希望他成为钢琴家的梦想可以成真。
I hope his dream of becoming a pianist will come true/will be realized.
2. 她为了实现她的梦想而努力工作。
She worked hard to realize her dream.
3、cause vt. 引起……的发生，导致
①cause sth. “引起……的发生”，同义短语为bring about
Carelessness can cause big problems.
粗心大意会导致大问题。
②cause sb. sth. 带给某人某事，指产生的结果与人有关
His cheating in the exam caused his teachers much unhappiness. 他在考试中作弊弄得老师们很不愉快。
cause, reason 与excuse
① cause “原因，起因”，常指造成某一事实或产生某种结果的直接原因，后可接介词for和of。cause for后接表示忧虑、埋怨、惊恐等感情的词，如cause for anger/regret/anxiety/complaint(生气/后悔/忧虑/埋怨的原因)；cause of后接感觉以外的名词，如：cause of the delay/the noise/the fighting/the disaster(耽搁/噪音/打架/灾难的原因)。
② reason指在事实的基础上通过逻辑判断出来的理由，常与for短语连用；reason可以作动词，意为“推理，推论，评理，劝说”。
She reasoned that she must have left her bag on the train. 她断定准是把包落在火车上了。reason from general laws从一般规律推论
reason with sb. for/against sth.
为了赞成/反对……而与某人评理
③excuse表示“辩解，借口”，指为某一行为所做的解释，可以是真的，也可以是托词。
make up an excuse编造一个借口
用cause, reason和excuse填空。
1. Too much work is no excuse for not studying.
2. Heart trouble is one of the most serious causes of death among old people.
3. We have no reason to disbelieve him.
4. The shaking of his hands caused the old teacher to give up teaching.
5. I tried to reason with him, but he wouldn't listen.
4、flood
① n. 洪水，水灾
The town was destroyed by the floods after the storm.
暴风雨后的洪水冲毁了这座城镇。
② v. 淹没，溢出
Every spring the river floods the valley.
每年春天河水把山谷淹没。
a flood of sth. 表示大量的、大批的，后可接可数名词或不可数名词，如：
a flood of anger 大发雷霆；
a flood of letters 大量的来信
5、affect v. 影响；使……感动；故作，假装
Simon affected boredom to make me think he didn't care.
西蒙假装厌烦，让我以为他(对这件事)不在乎。
affect, influence, effect与impact
①affect所指的影响往往较大，一般引起反应，有时指不利影响。
Bright light affects our eyesight.
强光影响我们的视力。
②influence是指通过说服、举例等方法对行为、思想、性格等产生潜移默化的长期影响。
His father's words have a great influence on him.
他父亲的话对他有很大的影响。
③ effect是affect的名词，指效果和影响。
④ impact指重大打击或冲击。
用affect, influence, effect, impact填空。
1. Under the influence of his uncle, he became a great pianist.
2. Warnings about the dangers of smoking seem to have little impact on this age group.
3. The advertising campaign had much effect on sales.
4. Don't let me influence your decision.
6、offer
① vt. 提供，提出某物供考虑；出价
offer sb. sth. ＝offer sth. to sb. 为某人提供某物
offer sth. for some money ＝offer some money for sth. 给某物开出了……的价钱，某物要价……
offer to do 自愿提出帮忙、资助、要求等
offer one's hand 伸出手和某人握手
offer one's hand in marriage 向……求婚
② n. 开出的价钱，如：a special offer 特价
完成句子。
1. 她为寻回遗失的项链提出以酬金答谢。
She offered a reward for the return of her lost necklace.
2. 她已经出价10, 000英镑买那栋房子。
She has offered 10, 000 pounds for that house.
3. 他总是乐意帮助别人。
He always offers to help others.
7、as if/as though
① It looks/seems as if… as if引导的是表语从句。从句所表示的情况接近事实，句子要用陈述语气；否则，用虚拟语气。
It seems as if they know him.
(接近事实，真实情况)
It seems as though it were already winter.
(虚拟语气)
② as if/as though引导方式状语从句，修饰主句中的谓语，此时从句中的谓语动词常用虚拟语气。在“as if/as though”引导的状语从句中，谓语动词与wish的宾语从句的虚拟形式相同。He was shaking with fright as if he had seen a ghost.
他吓得直哆嗦，就好像看见了鬼一样。
翻译句子。
1. 海水看起来好像不干净，不能游泳。
It looks as if it isn‘t clean enough to swim in the sea.
2. 好像她已出去好几天了。
It looks as if she's gone away for a few days.
3. 他似乎是个万事通。
It seems as if he knew everything.
8、feel like 想要；感觉像，摸上去像；感觉自己是(某一种人)
He didn't feel like going to work.他不想去工作。
以下结构也可表示“愿意干……”：
①would like to do sth. 愿意做某事
I would like to have a talk with you. 我想和你谈谈。
②would prefer to do …than do…
I would prefer to study alone at home than study in groups. 我宁愿自己单独在家学习也不愿进行小组学习。
9、It is＋adj. ＋that＋从句
“It is＋adj. ＋that＋从句”是一个常用句型。可用于此句型的形容词有necessary, possible, impossible, clear, obvious, certain, hard, difficult, easy, important, strange, natural等，其中形容词是用来描述从句的内容。
It is possible that he left his keys in the office.
很可能他把钥匙忘在办公室了。
另注意在此类主语从句中如果表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should)＋do”。
It's very important that we teach the children about road safety. 把交通安全常识教给孩子们
是非常重要的。
it作为形式主语的其他句型：
①It＋be＋adj. ＋(for sb.) to do sth.
＝To do sth. is＋adj.
常用于此句型中作表语的形容词有：difficult, hard, easy, common, possible, necessary, important等。
It is not difficult to work out the problem.
＝To work out the problem is not difficult.
要解决这个问题并不太难。
② It＋be＋adj. ＋of＋sb. ＋to do sth.
＝Sb. ＋be＋adj. ＋to do sth.
常用于此句型中的形容词有good, kind, nice, wise, clever, silly, stupid, foolish, wrong, impolite等描述人物的形容词。
It's very kind of you to lend me your pen.
＝You are very kind to lend me your pen.
你借给我钢笔真是太好了。
③ It＋be＋名词词组＋to do sth.
＝To do sth. is＋名词词组
常用于此句型的名词词组有：a pity, a pleasure, good advice, the custom, good/bad manners 等。
Before entering a house in some Asian countries, it is good manners to take off your shoes.
＝Before entering a house in some Asian countries, to take off your shoes is good manners.
在某些亚洲国家，进屋子之前脱下鞋子是礼貌的。
④ It＋be＋过去分词＋that从句
＝Sb. ＋be＋过去分词＋to do sth.
常用于此句型的动词有：report, know, say, believe, tell, prove, hope, expect, think等。
It is known that the Chinese are industrious people.
＝The Chinese are known to be industrious people.
众所周知，中国人民是一个勤劳的民族。
⑤It＋be＋no＋n. ＋doing sth. ，用于此句型的名词有good, use, point等。
It is no good reading under the sun.
在太阳底下读书是没有好处的。
⑥It＋动词＋that (as if)从句，用于此句型的动词有look, seem, appear, happen等。
It looks as if it will rain before long.
看起来一会儿就要下雨了。
汉译英。
1.犯这样一个错误你太愚蠢了。
It was foolish of you to make such a mistake./You were foolish to make such a mistake.
2.据说他在这次英语竞赛中获得了第一名。
It was said that he had won the first prize in the English competition./He was said to have won the first prize in the English competition.
3.抱怨是没用的。
It is no point complaining.
10、suggest v.
① suggest (doing) sth. 表示“建议(做)某事”。
I suggested going for a walk.
我建议去散步。
If this is not convenient, please suggest another date.
要是这个日期不方便，那就请另选一个日子吧。
②suggest that sb. (should) do sth./sth. (should) be done
Our manager suggested that all the staff in the company (should) learn how to use the Internet. 我们经理建议公司所有员工应学习如何使用因特网。
③suggest 意为“暗示，表明”时，如果后面接宾语从句，其谓语动词通常不用should＋动词原形，而用陈述语气。
完成句子。
1. 他的脸色表明他不是很高兴。
His face suggested that he was unhappy.
2. 他的口音表明他是一个美国人。
His accents suggest that he is an American.
3. 我建议他用另一种方式处理这个问题。
I suggested that he (should) tackle the problem in another way.
I suggested his/him tackling the problem in another way.
average, general与common
① average作名词时有“平均、平均数”。
The average of 4, 5 and 9 is 6.
4、5、9 三个数的平均数是6。
on average 平均来看
an average of… 平均有
We have many books and we have an average of 35 books per person.我们有很多书，每人平均有35本。
11、
作形容词时表示“一般的，普通的，中等的，平均的”
average person 普通人、老百姓
children of average intelligence智力一般的孩子
②general指“整体的，总体的”，强调共性，与individual相对。
③common 共同的，常见的
common sense常识
12、We would not_only be able to travel around the world, but_also go to study in any world famous universities we wanted to. (P12)
我们不仅可以环游世界，而且可以在我们想去的任何一所世界著名学府学习。
not only…but (also)…意为“不但……而且……”，常用来连接两个对等的成分。
①当它们连接两个并列主语时，谓语动词的数应与最近的主语一致。
Not only you but (also) I am a teacher.
不仅你而且我也是一名老师。
②当not only…but (also)…连接两个并列分句且not only置于句首时，not only分句常采用部分倒装语序。
Not only does he work hard, but he is (also) very clever. 他不仅学习刻苦，而且还很聪明。
13、But I still find it hard to imagine.(P12)
但我仍然觉得这很难想象。
find/think/feel/consider/make/believe it ＋adj. ＋(for sb.) to do sth.
这个结构中it是形式宾语，真正的宾语是后面的动词不定式短语。
I find it very difficult to write letters in Chinese.
我发现用汉语写信很困难。
汉译英。
1. 我发现完成这项工作很容易。
I find it very easy to finish the job.
2. 我认为买一套水晶玻璃酒杯很贵。
I think it expensive to buy a set of crystal wine cups.
3. 我认为被邀请参加宴会是很大的荣幸。
I consider it a great honor to be invited to a dinner.
4. 他觉得帮助有需要的人是他的责任。
He feels it his duty to help the people in need.
()1. (2010·全国卷Ⅱ)Tom was about to close the window______ his attention was caught by a bird.
A. when
B. if
C. and
D. till
A was about to do sth. when…did “正要做……就在这时……”。
I'll send you the website address when I get home.(P12)
()2. (2010·湖南卷)If he ______my advice, he wouldn't have lost his job.
A. followed
B. should follow
C. had followed
D. would follow
C与过去事实不相符的虚拟条件句，从句的谓语动词用had done。
Just think, if we had virtual reality holidays, we wouldn't have any problems with the weather.(P12) 如何写好并列句
并列句是指在一个句子中含有两个或两个以上互不依从的主谓结构(即并列分句)。并列句中的几个分句通常由并列连词来连接，所以写好并列句掌握连词的意义及语法作用是关键。
【句型1】简单句＋并列连词＋简单句
Faced with difficulties, they never give up but try their best to find a way out.
面临困难，他们从不放弃，而是尽最大努力解决。
连接并列句的连词可分为以下几类：
①单纯连词：and, both…and…，not only … but also…，as well as，…
②转折连词：but，however, yet, still, while，…
③选择连词：or，not…but …，either …or …，neither …nor…
④推理连词：so, therefore, for，…
【句型2】祈使句＋and / or (otherwise) ＋简单句
Take the chance, or / otherwise you will regret it.
抓住这次机会，否则你会后悔的。
本句型是并列句的一种特殊用法，可以与包含有条件状语从句的复合句进行转换。上句可转换为：
If you don't take the chance, you will regret it.
2014届高三那英语能力训练(三)
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第三章水溶液中的离子平衡 第三节盐类的水解 （第一课时教案） 【教学目标】 知识目标：⑴能正确分析强酸弱碱盐和强碱弱酸盐的水解原理和规律，正确判断盐溶液的酸碱性； ⑵能用化学平衡原理解释盐类水解的实质； ⑶初步了解盐类水解方程式和离子方程式的写法。 能力目标：⑴通过实验探究的方式探究不同类型的盐溶液呈不同的酸碱性，继而分析CH3COONa溶液呈碱性的原因，感悟科学探究的过程与方法； ⑵通过实验比较不同盐溶液酸碱性，培养学生实验观察能力和动手能力 情感目标：⑴体验科学探究方法，感受自主学习和合作学习的乐趣； ⑵在实验探究过程中，使学生体验到透过现象揭示事物本质的成功的喜悦，增强学习的信心。【重点、难点】 重点：盐类水解反应的概念、规律 难点：盐类水解的实质 【教学方法】 实验探究、小组合作、讨论学习 【教学过程】 【温故知新】 常见的强弱电解质： 1、常见的弱电解质 弱酸：CH3COOH、H2CO3、H2S、H2SO3、HF、HClO等弱碱：NH3.H2O等 盐:少数盐水 2、常见的强电解质 强酸：HCl、H2SO4、HNO3、HBr等强碱：NaOH 、KOH 、Ba(OH)2 、Ca(OH)2 等 盐：大多数盐 一、探究盐溶液的酸碱性 【创设情景，引入新课】： 新闻链接：被蜂蛰伤莫大意——大妈差点送了命！ 问题引入：酸溶液显酸性，碱溶液显碱性，盐溶液一定显中性吗？如何设计实验证明？ 探究盐溶液的酸碱性： （常温，中性溶液pH=7，判断溶液酸碱性最简易方案：用pH试纸测pH） 【自主学习，合作探究】 实验目的：测定物质的PH 实验仪器：PH试纸、点滴板、玻璃棒 实验药品：CH3COONa溶液、Na2CO3溶液、NH4Cl溶液、（NH4）2SO4溶液、NaCl溶液、Na2SO4溶液 实验并记录实验数据
广东省惠州市第一中学2017-2018学年高三英语第一轮复习英语月考题
英语测试 本试卷分选择题和非选择题两部分。满分150分，考试用时120分钟。 注意事项： 1. 本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。 2. 答题前，考生务必将自己的姓名，准考证号填写在答题卡相应的位置。 3. 全部答案应在答题卡上完成，答在本试卷上无效。 4. 考试结束后，将答题卡交回。 第I卷 第一部分阅读理解（共两节，满分 40分） 第一节（共15小题；每小题2分，满分30分） 阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。 A I have many new teachers in high school, but Lori Runkle, my English Language and Composition teacher, is my favorite teacher. Ms. Runkle enjoys getting to know more about students, so I have many chances to talk with her after class. I have always wanted to become a journalist. Since Ms. Runkle used to be a journalist back in the United States, she has introduced many helpful journalistic writing skills to me. Although she is my teacher, Ms. Runkle and I are more like friends. She often invites my classmates and me to take part in different activities outside of school. For example, I went to listen to a journalist's speech, which helped me better understand current events (时事). Not only does Ms. Runkle talk with me outside of school, she is also a great teacher in the classroom. English Language and Composition is a really hard subject for a second language learner. We felt worried in the beginning, but Ms. Runkle really makes an effort to help us out. In class, Ms. Runkle always encourages students to question everything to keep us active. One part of class I love the most is when groups of students are required to give speeches on events that are happening in the world. It requires a lot of deep thinking and I really learn quite a lot from it. I love Ms. Runkle very much. She not only helps me to get good scores, but also acts as a good friend and always gives me advice on life. 1. After class, the author _____. A. seldom sees Ms. Runkle B. talks with Ms. Runkle quite a lot C. enjoys introducing Ms. Runkle to her friends D. often invites Ms. Runkle to different activities 2. We can infer from the text that Ms. Runkle is _____. A. friendly and helpful B. kind and humorous C. clever and active D. strict and boring
扬州市高三英语期中试卷及答案
2009-2010学年度高三第一次质量检测 英语试卷 本试卷分五部分。满分120分。考试时间120分钟。 第一部分：听力(共两节，满分20分) 第一节（共5小题；每小题1分，满分5分） 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1. How did the woman do that? A. She is on a diet. B. She exercises daily. C. Both A and B. 2. What is Mary probably doing now? A. She is cooking at home. B. She is doing her homework. C. She is singing and dancing 3. What can we learn about Jane? A. She often hurries to make a phone call. B. She usually makes short phone calls C. She often stays on the phone too long. 4. What does the man ask the woman to do? A. To lend him her umbrella. B. To post the letter for him. C. To go to the post office with him. 5. How often do Johnson’s parents write to him? A. Once a month. B. Once a year. C. More than once a month. 第二节（共15小题；每小题1分，满分15分） 听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各个小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料，回答第6至7题。 6. What is the schedule of the school bus? A. The first bus leaves at 6 am, the second at 12 am, the third at 7 pm. B. The first bus leaves at 7 am, the second at 11:40 am, the third at 6 pm. C. The first bus leaves at 7 am, the second at 12 am, the third at 6 pm. 7. Where can the woman find the timetable of the buses? A. At the bus headquarter station. B. On the bus station sign. C. On the wall of the waiting hall. 听第7段材料，回答第8至9题。
哈佛公开课：幸福课 第一集 笔记(April记录)
哈佛公开课：幸福课 Harvard Open Course : Positive Psychology 背景： “幸福课”是2010年哈佛最受欢迎的选修课是，听课人数超过了王牌课《经济学导论》。教这门课的是一位名不见经传的年轻讲师，泰勒?本－沙哈尔。他的课程使得他成了“哈佛红人”。他提出：幸福，是可以通过学习和练习获得的。”他的课程目标在于把艰深的积极心理学学术成果简约化、实用化，让学生懂得自我帮助。 第一课什么是积极心理学 积极心理学课程由来 首先，解释自己为什么想开这门课“因为这是我自己想上的一门课”，然后叙述自己走入积极心理学研究的过程。——当自己刚进入哈佛，一切都仿佛很好，但他却不快乐。于是他想解决这个问题，于是慢慢从计算机走入心理学领域。（好棒的跨度，在国外因为想了解一样东西而跨专业好像蛮common的） 然后介绍了他逐渐从8个人的讨论组到850个人的大课的过程，写到达到850人后，引起了媒体的兴趣，然后描述了媒体采访他的时候，总是提出的一个问题“你比我们想象的更内向”，作为一个joke，1米7不够资格传授快乐吗？（good joke point，并且不光是joke，是发人深思的一种现象）但点出了他最后反思而得：因为他们想给自己一个答案：为什么这个课这样流行，唯一解释就是导师乐观开朗、高大。但他们关注错了，他们应该关注信息，而非传达者。因为这个课程遍及全国，以及全球。（这样引入幸福课的普及，远较直接说XX学校也开了XX好得多） 各个大学开设此课程，各国政府也是，为什么？因为它有效。幸福感这一领域，此前一直被心理自助运动统治，心理自助运动带来什么？热情外向的宣讲者，常具领袖气质，吸引大众参加他们的讲座，但常常言过其实。（通过描述相对立的一种心理学运动来映衬积极心理学） 再来说说学术界——（引入人们对学术界知之甚少，但学术界有好东西，又用了一个比较）：有多少人度过最近12期的《个性与社会心理学》？大多数人甚至不知道这是什么东西，我博士班的班主任估计过，学术期刊上一篇文章的读者只有7个人，甚至包括作者的母亲。（用具体的人代替somebody，令人更有亲切感，母亲的joke两个亮点）总结：作为学者，我觉得这很可悲，因为这些研究非常精彩、非常重要，但是晦涩难懂，所以我们需要积极心理学的课程，在象牙塔和大众之间搭建桥梁。（又落脚到主题，本课程的意义）
高三英语一轮综合能力测评训练卷之五(外研版)
综合能力训练卷(五) 第一部分英语知识运用(共两节，满分45分) 第一节单项填空(共15小题；每小题1分，满分15分) 从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 1. Exploring ________space is exciting, yet dangerous. There is ________need for both robots and humans for space exploration. A. the; a B. a; a C. /; a D. /; the 2. Scientific research results can now be quickly ________ to factory production. A．used B．applied C．tried D．practiced 3. Computer has become a(n) ________ part of my life, without which I can hardly deal with my job. A．special B．specific C．essential D．especial 4. I ________ on a sofa because my grandparents have been here for the weekend. A. slept B. was sleeping C. have slept D. am sleeping 5. I'm interested in a one-bed room. Do you have any ________？ A．convenient B．available C．possible D．personal 6. The further falling of the stock market as reported today has ________ a fresh wave of selling. A．given off B．set off C．put off D．got off 7. The incomes of skilled workers went up. ________，unskilled workers saw their earnings fall. A. Moreover B. Therefore C. Meanwhile D. Otherwise 8. You may imagine what great difficulty I had________complicated ideas in simple English. A．expressing B．to express C．expressed D．express 9. Thanks to Mr. Smith the father and the son eventually________after ten years' cold relationship between them. A．took up B．made up C．looked up D．turned up 10．He ________ whether the articles exhibited at the back of the department store were for sale. A．demanded B. decided C．required D．requested 11．—Shirley, can I have a look at your photos? —________.Here you are. A．By any means B．By no means C．By this means D．By all means 12. I hadn't seen him for 10 years but I ________ him at first sight. A. realized B. spotted C. watched D. observed ks5u 13. ________while writing, he locked himself in his study. A．Not to interrupt B．Not being interrupted C．Not to be interrupted D．Being not interrupted 14. If we keep wasting so much energy, ________are that our oil wells will dry up and the environment will be destroyed. A. problems B. difficulties C. questions D. chances 15. —Andrew won't like it, you know.
公开课--盐类的水解-教学设计
教材先提出盐溶液的酸碱性的问题，然后通过实验得出盐溶液的酸碱性与其组成的关系，再通过微观分析得出其本质原因。针对这一内容组织形式、结合学生已经基本具备解决问题的弱电解质电离平衡知识和平衡移动原理知识，本节课适合于采用探究式教学模式。同时，本节课的核心任务是形成盐类水解的概念，根据概念的分类和学习的认知学心理，概念的形成要通过具体的例证进行概念感知、对例证进行分析、比较、辨别，在此基础上舍弃非本质特征、提取其本质特征、进行抽象概括，形成概念。综合上述两点，我设计了如下探究教学模式。 教学模式：提出问题――实验探究――得出结论――质疑――理论讲解――交流应用 教学环境、教学媒体选择 教学场地：高二（1）班 实验器材：试管、烧杯、玻璃棒等 本节课将用到 黑板，粉笔，计算机，投影仪，图片，课件PPT等。 板书设计 第三节盐类的水解 一、探究盐溶液的酸碱性 强酸强碱盐：中性 强酸弱碱盐：酸性 强碱弱酸盐：碱性 二、盐溶液呈现酸碱性的原因 1、理论分析：CH3OONa溶液（显碱性）： CH3OONa=CH3OO—+ Na+ + H2O H++ OH— CH3COOH 2、盐类水解的定义 3、实质 4、规律 5、条件 6、特征
三、水解方程式的书写规则 ①一般用，不用气体或沉淀符号； ②多元弱酸根分布写，以第一步为主； ③多元弱碱的阳离子一步到位。 教学目标 一、知识与技能 （1）使学生理解盐类水解的实质，能解释强碱弱酸盐和强酸弱碱盐的水解。 （2）能通过比较、分类、归纳、概括等方法得出盐类水解的规律，揭示盐类水解的本质。（3）能运用盐类水解的规律判断盐溶液的酸碱性，会书写盐类水解的离子方程式。 二、过程与方法 通过实验，培养学生的观察能力，加强基本操作训练，培养分析、综合的思维能力三、情感态度与价值观 （1）能在思考分析过程中倾听他人意见，相互启发，体会合作交流的重要与快乐。 （2）体验科学探究的乐趣，学会透过现象看本质。 （3）建立个性与共性、对立与统一的科学辩证观。 重点、难点分析 重点：盐类水解的过程、本质。 难点：盐类水解的本质。 课堂教学过程结构设计 教师活动学生活动设计意图 【引言】在酸溶液中， [H+]>[OH-],使溶液呈酸性；在碱溶液中，[H+]<[OH-],使溶液呈碱性；那么在由酸和碱发生中和反应产生的盐的水溶液中，是否一定是[H+]=[OH-],使溶液呈中性呢？ 【评价】同学们众说纷纭，观点各不相同。俗话说，实践出真知，我们还是用实验来检验思考回答： 部分学生：是中性 部分学生：不一定是中性， 也可能呈碱性或酸性， 设置问题情境，激发学习兴 趣，轻松进入学习状态。 ，
高三第二次月考英语试卷Word版含答案
高三第二阶段英语试题 出题人: 李庆明审题人: 杨丽丽 第二部分阅读理解（共两节,共20小题；每小题2分，满分40分） 第一节阅读下面的短文，从每题所给的四个选项（A，B，C，D）中，选出最佳选项。 A Micro-Enterprise Credit for Street Youth Introduction Although small-scale business training and credit programs have become more common throughout the world, relatively little attention has been paid to the need to direct such opportunities to youth living on the street or in difficult circumstances. Over the past years, Street Kids International (S.K.I.) has been working with partner organizations in Africa, Latin Africa and India to support the economic lives of street children. The purpose of this paper is to share some of the lessons S.K.I. and our partner organizations have learned. Background Typically, children end up on the streets not due to a single cause, but a combination of factors: the lack of adequately funded schools, the demand for income at home and so on. The street may be attractive to children as a place to find adventurous play and money. However, it is also a place where some children are exposed, with little or no protection, to exploitative employment, and urban crime. Street Business Partnerships S.K.I. has worked with partner organizations in Latin America, Africa and India to develop innovative opportunities for street children to earn income. ● The S.K.I Bicycle Courier Service first started in the Sudan. Participants in this enterprise were supplied with bicycles, which they used to deliver parcels and messages, but they were required to pay for it gradually from their wages. ● The Youth Skills Enterprise Initiative in Zambia is a joint program with the Red Cross Society. Street Youths are supported to start their own small business through business training, life skills training and access to credit. Lessons Learned The following lessons have emerged from the programs that S.K.I. and partner organizations have created.
高三英语期中试卷
高三英语上学期期中试题 班级：________ 姓名:___________分数 一.单项选择。（共80分） （）1.To finish the task, we’ve tried three times , and after dinner we’ll try ______time . ] A the fourth B a fourth C fourth D four ( ) 2. The children were hungry and the salad _______quickly . A was eating up B ate up C was eaten up D had eaten up ( )3. Han Meimei is _______Chinese girl . Lucy is ______English girl . A a ; a B an ; an C a; an D an ; a ( )4. _______are _____for cutting things . A Knife ; used B knives , used C Knife ; using D Knifes , used ( )5. My watch is not the only thing _______is missing . A that B what C which D who ( )6. We had hoped that he _____longer . A stays B have stayed C stayed D would stay ( )7. _______I have your name , please ? Yes . Michael . M-I -C-H-A-E-L A Must B Will C May D Need ( )8. Tell him____the light . A to don’t turn on B not to turn on C to not turn on D not turning on ( )9. Do you need more time to complete the task ? Yes . Another ten days _____enough. A is B was C are D were ( )10. I’m going to take part in China’s Got Talent next month . ____! I am sure you will win . A Never mind B Good luck C What a pity D My pleasuer ( )11. _______does it take from our school to the farm by bus ? About one hour and half . A How far B How long C How often D How soon ( )12. It’s no good _______. You’d better give it up . A to smoke B smoking C smokes D smoke ( )13. John thinks you are wrong , _______? A doesn’t he B does he C are you D aren’t you ( )14.If you want to rent a better room , you’ll have to pay _______fifty dollars . A another B other C the other D more ( )15.Would you like to join us in the game ? ______, but I have something important to do . A I’d love to B I will C I won’t D I would ( )16. ________, she spends 150 yuan on books every month . A On average B In average C On an average D At an average ( )17. I think she is suitable ______the job ______by her teacher . A for ; chosen B to ; choosing C to ; chosen D for ; choosing
幸福课_哈佛公开课第一课中文字幕
第一课 各位，早上好。很高兴能回到这里。 高兴见到你们。 我教授这门课是因为在我读本科阶段时非常希望能学习这样一门课程。 可能这门课并不是你希望的那样也可能并不适合你。 但希望几堂课后，你能有个大概印象让你决定这门课程是否适合你。 我1992年来到哈佛求学，一开始主修计算机科学。 大二期间，突然顿悟了。 我意识到我身处让人神往大学校园周围都是出色的同学，优秀的导师。 我成绩优异。擅长体育运动。那时壁垒打的不错。社交也游刃有余。 一切都很顺利除了一点我不快乐。而且我不明白为什么。 也就是在那时我决定要找出原因变得快乐。 于是我将研究方向从计算机科学转向了哲学及心理学。 目标只有一个:怎么让自己开心起来。 渐渐的，我的确变得更快乐了主要是因为我接触了一个新的领域，那时并未正式命名。 但本质上属于积极心理学畴。 研究积极心理学把其理念应用到生活中让我无比快乐。 而且这种快乐继续着。 于是我决定将其与更多的人分享。 选择教授这门学科。 这就是积极心理学，1504号心理学课程。 我们将一起探索这一全新相对新兴令人倾倒的领域。 希望同时还能探索我们自己。 我第一次开设这门课程是在2002年。 是以讨论会的形式，只有8名学生。两名退出了只剩我和其他六个人。一年后学生稍微多了点。有300多人参加。到了第三年，也就是上一次开课。 有850名参加是当时哈佛大学人数最多的课程。 这引起了媒体的注意。因为他们想知道为什么。 他们对这一奇特现象非常好奇竟然有比经济学导论更热门的课程。怎么可能呢？ 于是我被请去参加各类媒体采访，报纸，广播，电视。 在这些采访中，我发现了一种有趣的模式。 我前去参加采访。进行采访。 结束后，制片人或主持人会送我出来。说些诸如Tal多你抽空参加采访。 不过你跟我想象的不太一样的话。 我漫不经心的问。 我无所谓，不过总得回应“有何不同？” 他们会说“这个嘛，我们会以为你很外向”。 下一次采访结束时仍是如此“多接受采访”。 不过Tal，你跟我想象得不太一样。
高三英语(词汇能力训练--H-L)
教师辅导讲义
15. In their rush to_____________, they ignore the environment protection. Section D. Put the following sentences into English. 1. 你的那些愤怒的话语会伤害他的感情。(hurt) 2. 车辆可能到不了山顶上的大楼。(inaccessible) 3. 尽管那时交通很困难，但是我们还是能通知所有的村民开会的时间。(inform) 4. 他不可能被传染，因为他打过针了。(infect; inject) 5. 你们不得安装这种没有说明的设备。(insult) 6. 我可以把服务费包括在总的花费中吗？(include) 7. 我们来模仿老师的动作好吗？(imitate) 8. 如果你花太多的时间在电脑上，你会受到虚幻世界的影响的。(shall; influence) 9.由于不知道会谈的结果，他不敢向记者说明这个计划。(ignorance; illustrate) 10. 有必要把惩罚强加于那些无罪的人身上吗？不，不行。(impose; innocent) **************************************************************************************** Keys: Section A: 1-5 OAEBC 6-10 GIKMJ 11-15 DLNFH 16-20 b d f h i 21-25 I n o m k 26-30 i g a c e Section C: 1. identification 2 ignorant 3, illegal 4. Illustration 5. imagination 6. practical 7. imaginary 8. immigrated 9. impatient 10. indication 11. unimaginable 12. improvement 13. access 14. implication 15, industrialization Section D: 1. Will those of your angry words hurt his feelings?
优质课教案：盐类的水解
公开课教案 开课教师：林玉治时间：2008-12-5 星期五第三节班级：K二6班 第三单元盐类的水解 第一课时盐类的水解规律 教学目标： 1.使学生理解盐类水解的实质，能解释强碱弱酸盐和强酸弱碱盐的水解。 2.能通过比较、分类、归纳、概括等方法得出盐类水解的规律，揭示盐类水解的本质。 3.能运用盐类水解的规律判断盐溶液的酸碱性，会书写盐类水解的离子方程式。 教学重点：盐类水解的本质 教学难点：盐类水解方程式的书写和分析 教学过程： 【导课】生活中如果遇到火灾怎么办？ 打119，找水源，找泡沫灭火器····· 【切题】泡沫灭火器的使用：倒置，喷出大量泡沫隔绝空气灭火。 灭火器的成分是硫酸铝和碳酸氢钠溶液，为什么倒置可以产生二氧化碳和氢氧化铝？ 欲知详情如何，请听《盐类的水解》 ［问题引入］酸溶液显酸性，碱溶液显碱性，盐溶液一定显中性吗？如何设计实验证明？ 一、探究盐溶液的酸碱性：（常温，中性溶液PH=7，判断溶液酸碱性最简易方案：用PH试纸测PH）【活动与探究】用pH试纸检验下列（一）组溶液的酸碱性：【学生实验】 （一）NaCl、NH4Cl、CH3COONa（二）AlCl3、Na2CO3、Na2SO4、 溶液的酸碱性 盐的类型 （从生成该盐的酸和碱的强弱分） 【讨论】为什么不同的盐溶液的酸碱性不同？由上述实验结果分析，盐溶液的酸碱性与生成该盐的酸和 碱的强弱间有什么关系？ 盐的组成： 酸+ 碱= 盐+ 水 强酸强碱强酸强碱盐如：NaCl KNO3 强酸弱碱盐NH4Cl Al2(SO4)3 弱酸弱碱弱酸强碱盐CH3COONa Na2CO3 弱酸弱碱盐CH3COONH4 △正盐的组成与盐溶液酸碱性的关系：（谁强显谁性，都强显中性） ①强碱弱酸盐的水溶液显碱性c（H+）＜c（OH—） ②强酸弱碱盐的水溶液显酸性c（H+）＞c（OH—） ③强酸强碱盐的水溶液显中性c（H+）= c（OH—）
(全国Ⅰ卷)2020届高三英语4月教育教学质量监测考试试题(英语)
注意事项： 1.本试卷分为四部分。 2.答题前，考生务必将自己的姓名、准考证号填写在本试卷相应的位置。 3.全部答案写在答题卡上，写在本试卷上无效。 4.本试卷满分150分，测试时间120分钟。 5.考试范围：高考全部内容。 第一部分听力(共两节，满分30分) 做题时，先将答案标在试卷上。录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。 第一节(共5小题；每小题1.5分，满分7.5分) 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1. What does the man want the woman to do? A. Talk on the phone. B. Turn off the TV. C. Turn down the TV. 2. Where does the conversation probably take place? A. In a restaurant. B. In a hotel. C. In an airport. 3. What does the man invite the woman to do this afternoon? A. See a film. B. Go climbing. C. Go swimming. 4. How much will the woman pay altogether? A. $ 3.50. B. $ 21. 50. C. $ 25. 5. What will Peter do this afternoon? A. Drive a car. B. Go skating. C. Play table tennis. 第二节(共15小题；每小题1.5分，满分22.5分) 听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料，回答第6、7题。 6. What is the probable relationship between the two speakers? A. Mother and son. B. Teacher and student. C. Classmates. 7. How long do the students stay in school every day?