人教版选修六第四单元

合集下载

人教版高中英语选修六unit4 Grammar The Emphasis sentence强调句

It is they that will have a meeting in a hall tomorrow. 强 It is a meeting that they will have in a hall tomorrow. 调 It is in a hall that they will have a meeting tomorrow. 句 It is tomorrow that they will have a meeting.
It was I that/ who saw him on the street last night. It was him that/ who I saw on the street last night. It was on the street that I saw him last night. It was last night that I saw him on the street.
1.请观察以上两组强调句之后归纳强调句的句子结构。 2.被强调的成分可以是____、____、______，但不能是_____。 3.强调人时可用___（连词）来连接，强调事物时只能用__（连词） 4. 当原句转变成强调句后，强调句中的主谓、时态、人称是否与原句保持一致？
Questions:
G2: John and Tom were playing basketball. It was John and Tom who were playing baskeball.
主语、宾语状语，但不能是谓语 2.被强调的成分可以是______ ____、______ ____。 who / that来连接，强调事物时只能用______ that 。 3.强调人时可用________

人教版高中地理选修6《第四章生态环境保护第一节森林及其保护》_7

第四章第一节森林及其保护一、三维目标：1.知识与技能①了解并掌握森林锐减的原因。

②运用世界森林分布示意图，能说明世界森林种类和分布地区。

③理解森林生态功能。

①结合图片，帮助学生理解世界森林的主要分布及成因。

②通过视频并联系实际生活，理解森林的功能。

③通过角色扮演的形式，说出不同角色会对森林造成哪些破坏。

3.情感态度与价值观①增强学生保护森林的意识，形成可持续发展观念。

②增强学生关心和保护森林的责任感，养成良好的生活、消费习惯。

二、教学重难点：重点：1．森林资源破坏的原因。

2．森林的生态功能。

难点：理解森林的生态功能。

三、教具准备：多媒体图片、视频。

四、教学方法：讲授法、案例分析法、合作探究法、列表比较法等。

五、教学过程：<1>.导入：同学们，大家有没有听过这样一句话“绿水青山就是金山银山”。

由此可见，森林对于我们地球而言具有十分重大的意义。

但是，自从人类产生之后特别是工业社会以来，人类从来就没有停止过对于森林的开采、破坏，导致了十分严重的后果。

大家能说说你们生活中所感受到的森林破坏带来的后果吗？（比如：我们感觉夏天越来越热了、空气越来越差了、河流越来越浑浊了、需要保护的动植物也越来越多了）所以，保护森林使我们每一个人的责任。

那么今天我们就一起来学习一下第四章第一节——森林的开发和保护。

<2>.巩固基础•梳理知识1、森林的特点（1）森林是陆地上①___最强大____、最复杂、最能②__长久存在____的生态系统。

（2）森林是最丰富的③__物种库__，尤其是④___热带___和亚热带森林。

（3）⑤保护森林、植树造林是生态系统保护的核心。

2、森林锐减（1）森林面积的变化：8000年前，原始森林占陆地面积的47.7%，现代世界森林覆盖率仅为①30 %。

原始社会农业社会工业时代原因②刀耕火种、游耕制度人口增多，无计划垦殖和大量使用薪柴大规模商业性机械采伐变化趋势③对原始森林有所破坏，但是因人口稀少，森林仍然有自然更新的机会面积逐渐减少面积锐减（3）世界：全球现存天然林中未受人类干扰的森林不足④_40%_，工业化国家中，除加拿大和⑤__俄罗斯___外，大部分森林为人工林，或“半天然”林。

新课标人教版选修六Book6 Unit4 Vocabulary(1)

I am opposed to driving/oppose driving while drunk.
3.人在疲劳的时候容易出错。
People tend to make mistakes when( they are ) tired.
4.自上月以来，已有大量的空调售出。
Large quantities of air conditioners have been sold since last month.
ranging (range) ②He has a wide range of interests,_______ from chess ______ to canoeing(皮划艇) .
当堂检测： 1.他不同意这样的观点。
He doesn’t subscribe to such views.
2.我反对酒醉时驾驶。
3. quantity 量；数量 a quantity of +可数/不可数名词（谓语动词用单数）许多的；大量的 quantities of +可数/不可数名词（谓语动词用复数）许多的；大量的 A large quantity of food is needed in the flood area. Large quantities of food are needed in the flood area. 洪水灾区需要大量的食品。
6.oppose vt. 反对;反抗; 与某人较量 opposed adj. 反对的；对立的 oppose(doing) sth./ be opposed to (doing) sth. 反对 „ the plan to build a gas The local citizens opposed ______________ station near the school. 当地的市民反对在学校附近建液化气站。 We___ are _______ opposed__ to ______ getting there on foot. 我们反对步行去那里。

新课标人教版选修六Book6 Unit4 Reading

Scientists Opinion Janice ◆ Over the next 100 years the Foster amount of warming could be as low as 1 to 1.5 degrees Celsius, but it could be as high as 5 degrees Celsius. ◆ An increase of five degrees catastrophe . would be a 4____________
Writing techniques
Raising a question
Main ideas of each part
Writing techniques
(Paragraphs 2---3 ) Illustrate how
about.
Giving examples,
using graphs,
global warming comes explanation.
between 1860 to 2000.
Graph 2 is about the carbon
dioxide content in the atmosphere,
1958--1990.
5. What is the main topic of the article? Global warming/ the warming of
warming? Do they agree with one another? They don't agree with each other. Dr. Janice Foster thinks the effects of global warming could be very serious.

高二英语人教版选修六第四单元学案+答案

above average 高于平均水平 below average 低于平均水平on average 平均，一般的 of average intelligence 智力一般 an average of 平均一、词汇变形 1.consume(v.)消费 Book6 Uni4 Global warming 词汇导学案mit(v.)---commitment(n.) 承诺,交托---consumer(n.)---consumption(n.)2.renew(v.)更新---renewable(adj.)可更新的3. subscribe (v.)同意，订阅---subscription(n.)订阅---subscriber(n.)订阅者4.trend (n.)趋势，走向---trendy(adj.)时髦的5.oppose(v.) 反对---opposite(adj.) 相反的--- opponent(n.)对手---opposition(n.)反对 6. mild(adj.)---mildly(adv.)温和的 7. environment(n.)---environmental(adj.) ---environmentally(adv.) 8.state(v.)陈述---statement(n.) 9.steady(adj.)---steadily(adv.) 10.economy(n.)---economical(adj.) 节约的 ---economic(adj.)经济的 11. existence(n.)---exist(v.)存在 ---existent(adj.)存在的：实有的二、重点单词1.tend v 趋向，照料，照顾13. pollute(v.)---pollution(n.) ---pollutant(n.)污染物 14. appliance(n.)用具,器具---apply(v.)应用 15. grow(v.)---growth(n.)成长16. casual(adj.)随意的---casually(adv.)17.wave(n.)波---microwave(n.)微波炉18.fresh(adj.)新鲜的---freshness(n.)---refresh(v.)使恢复,使振动19. educate(v.)---educator(n.)---education(n.)教育20. c ontribute(v.)贡献---contribution(n.)21. present(v.)提交,呈上(adj.)在场的,现在的---presentation(n.)显示，演出22.agree(v.)---disagree(v.)不同意---disagreement(n.)分歧，不一致tend to do 易于做某事，往往做某事 = be likely to so sth.tend (to) sb. 照料,护理= attend to sb. =care for = take care of=look afterOpportunities and success tend to be in favor of those who are ready.1) *社会上有很多父母对孩子过分呵护。

高二英语人教版选修六 Unit4 Global warming 单词讲解

quantities of 大量的 tend vi. 趋于，易于，照顾
vt. 照顾，护理
go up 上升，增长，升起 △Charles Keeling 查尔斯。基林 △measurement n.衡量，测量，尺寸 per prep. 每，每一
data n. 资料，数据 result in 导致 trend n.趋势，倾向，走向 catastrophe n. 大灾难，浩劫 flood n.洪水，水灾 △drought n. 旱灾，干旱 △famine n. 饥荒 △George Hambley 乔治.汉布利 oppose vt.反对，反抗，与(某人)较量
mit(v.)承担义务,做出保证---commitment(n.) 承诺,交托 ---committed (adj.)尽心尽力的；坚定的
13. pollute(v.)污染---pollution(n.)污染---pollutant(n.)污染物 14. appliance(n.)用具,器具---apply(v.)应用 (多义) 15. grow(v.)种植,生长---growth(n.)成长 16. casual(adj.)随意的---casually(adv.)随意地 17.wave(n.)波---microwave(n.)微波炉 18.fresh(adj.)新鲜的---freshness(n.)新鲜---refresh(v.)使恢复,使振动 19. educate(v.)教育---educator(n.)教育工作者,教师
opposed adj. 反对的，对立的 be opposed to 反对 mild adj.温和的，温柔的，淡的 △environmental adj.环境的 △environmentalist n. 环境保护论者 consequence n.结果，后果，影响 state vt. 陈述，说明 range n.种类，范围 even if 即使 keep on 继续 glance vi. 看一下，扫视

人教版高中英语单词表选修六unit 4

n.结果；后果；影响 vt.陈述；说明 n.种类；范围即使继续 vi.看一下；扫视 n.一瞥 a.平稳的；持续的；稳固的 ad.平稳地；持续地 n.倾向；趋势 a.分布广的；普遍的大体上；基本上 a.节约的；经济的 n.公顷 a.平均的 n.生存；存在 a.外部的；外面的代表…一方；作为…的代言人 n.个人；个体 a.单独的；个别的 vt.拥护；提倡；主张 n.承诺；交托；信奉忍受；容忍 n.污染；弄脏 n.增长；生长 a.电的；与电有关的 n.用具；工具；器具只要 a.随便的；漫不经心的；偶然的等等 n.发动机 n.容器；罐头 n.环境；情况 n.微波炉；微波 vt.使恢复；使振作 n.教育工作者；教育家 n.贡献 a.祈使语气；命令 n.标题 n.标语；口号 n.显示；演出 a.核的；核能的；原子核的 n.分歧；不一致
consequence state range even if keep on glance steady steadily tendency widespread on the whole economical hectare average existence outer on behalf of individual advocate commitment put up with pollution growth electrical appliance so long as casual and so on motor can circumstance microwave refresh educator contribution imperative heading slogan presentation nuclear disagreement
选修六 Unit 4 consume renewable greenhouse Fahrenheit come about Sophie Armstrong graph random phenomenon subscribe subscribe to fossil fuel byproduct Janice Foster methane Celsius quantity quantities of tend go up Charles Keeling measurement per data result in trend catastrophe flood drought famine George Hambley oppose opposed be opposed to mild environmental environmentalist

人教版英语选修六第四单元U4 Global warming单词短语练习

人教版选修六第4单元U4 Global warming单词短语练习一、根据下列提示写出相应的英文单词。

1.vt.消费；消耗；耗尽；吃完__________2.adj.能再生的；可更新的__________3.n.温室；花房__________4.adj.华氏的n. 华氏温度计__________5..n.图表；坐标图；曲线图__________6.adj.胡乱的；任意的__________7.(复数-ena) n.现象__________8.vi.同意；捐赠；订阅__________vt. (签署)文件；捐助__________9.n. 化石；从地下采掘出来的（矿物）__________10.n.燃料__________11.n.副产品__________12.n.甲烷；沼气__________13.adj.(温度)摄氏的__________14.n.量；数量__________15.vi.趋向；易于；照顾vt. 照顾；护理__________16.n.衡量；测量；尺寸__________17.prep.每；每一__________18.n.资料；数据__________19.n.趋势；倾向；走向__________20.n.大灾难；浩劫__________21.n.洪水；水灾__________22.n.旱灾；干旱__________23.n.饱荒__________24.vt.反对；反抗；与（某人）较量__________25.adj.反对的；对立的__________26.adj.温和的；温柔的；淡的__________27.adj.环境的__________28.n.环境保护论者__________29.n.结果；后果；影响__________30.vt.陈述；说明__________31.n.种类；范围__________32..vi.看一下；扫视n.一瞥__________33.adj.平稳的；持续的；稳固的__________34.adv.平稳地；持续地__________35.n.倾向；趋势__________36.adj.分布广的；普遍的__________37.adj.节约的；经济的__________38.n.公顷__________39.adj.平均的__________40.n.生存；存在__________41.adj.外部的；外面的__________42.n.个人;个体adj 单独的;个别的__________43.vt.拥护；提倡；主张__________44.n.承诺；交托；信奉__________45.n.污染；弄脏__________46.n.增长；生长__________47.adj.电的；与电有关的__________48.n.用具；工具；器具__________49.adj.随便的；漫不经心的；偶然的__________50.n.发动机__________51.n.容器；罐头__________52.n.环境；情况__________53.n.微波炉；微波__________54.vt.使恢复；使振动__________55.n.教育工作者；教育家__________56.n.贡献__________57.n.祈使语气；命令__________58.n.标题__________59.n.标语；口号__________60.n.显示；演出__________61.adj.核的；核能的；原子核的__________62.n.分歧；不一致__________二、根据下列中文写出相应的英文短语。

新课标人教版选修六Book6 Unit4 Language points

所有科学家都赞同这样的观点：人们为了生产能量而燃烧化石燃料(如煤、天然气、石油等)，从而引起了地球温度的升高。同位语句中that 引导___________ 从句。因为，由于（be）due to =because of ______________ 预定做…… be due to do sth _______________
句型：the+ adj.最高级+one of+which/who... 其中最……的…… 仿写： ⑴ 这里有很多的动画片，其中我最喜欢的是喜羊羊与灰太狼。 the favorite one Here are many cartoons，_______________ _____________ is Happy Sheep And Gray of which Wolf. ⑵ 我有三个姐姐，其中最年轻的三年前去了美国。 I have three sisters, ____________________ youngest went to USA three the years ago. one of whom
Compare A to B 把A比作B Compare A B 把A与B相比 is often compared to Life_____________________voyage. 人生常被比作航海。 to/with If you________ compareBritish football _______American football,you’ll find many differences. 如果你把英式足球与美式足球相比，就会发现许多不同之处。 Michael’s new house is like a huge palace,_________with his old one. A. comparing B. compares C. to compare D. compared

人教版英语选修六第四单元知识点

人教版英语选修六第四单元知识点U4(选修六)Language points-reading 11.depend on/ upon+ n 依靠,依赖, 确(坚)信You can’t depend on your parents forever.depend on/upon+sb.+to do 指望某人做……You can’t depend on him to come on time.depend on/upon +it +that…. 指望…..You may depend on it that he will come.depend on/upon +wh-从句Whether you can pass the exam depends on how hard you work.That (all) depends./ it all depends. (口语)视情况而定，I may help you. But that/ it depends.2. light1)n. 光,线,灯2)v.照亮,点燃He lit a match. 他划着了一根火柴。

A smile of triumph lit up her face. 她的脸上闪耀着胜利的微笑。

The match lights easily. 这火柴容易划着3)adjThe suitcase is very light.（轻的）There was a light rain falling.He is a light sleeper. 他睡不沉。

（易醒的）3. heat v. / heat up 是某物变热或变暖heated adj. 热的激烈的heated debate, heated discussionheatedly adv.愤怒地激昂地heater加热器发热器4.consume v.---- consumer (n.).1 消耗,花费;耗尽She consumed most of her time in reading.2吃完,喝光The kids soon consumed all the food on the table. 孩子们一会儿功夫便把桌上的食品全部吃光。

高中英语人教版选修六Unit4泛读课文逐句翻译

高中英语人教版选修六Unit4泛读课文逐句翻译选修六Unit4 WHAT CAN WE DO ABOUT GLOBAL WARMING?关于全球变暖，我们能干些什么呢？Dear Earth Care, 亲爱的“关爱地球”组织：I am doing a project on behalf of my school about global warming. 我正代表学校做一项关于全球变暖的课题研究。

Sometimes I feel that individuals can have little effect on such huge environmental problems. 有时候我觉得，像这样一个巨大的环境问题，个人是起不了什么作用的。

However, I still think people should advocate improvements in the way we use energy today. 然而我仍然认为人们应该支持改善日常能源的消耗方式。

As I'm not sure where to start with my project, 由于我还不清楚我该从哪里着手开始我的研究。

I would appreciate any suggestions you may have. 我希望能得到你们的建议。

Thank you! 谢谢！Ouyang Guang欧阳光Dear Ouyang Guang, 亲爱的欧阳光：There are many people who have a commitment like yours, but they do not believe they have the power to do anything to improve our environment. 有许多人承担你这样的义务，而他们不相信自己有能力来影响环境。

That is not true. 这种想法是不正确的。

人教版高二英语选修六Unit 4 Global warming 如何写倡议书

如何写倡议书【写作任务】假定你是某国际学校的学生会主席李华，你校正在开展“创建文明校园”活动，请你以此为主题用英语写一封倡议书。

内容包括：1. 说明活动缘由；2. 提出改进建议；3. 发出倡议。

注意：1. 词数100词左右（开头已为你写好，但不计入总词数）；2. 可以适当增加细节，以使行文连贯。

参考词汇：文明校园civilized schoolDear friends,As is known to all, our school has started a campaign to build a civilized school._____________________________________________________________________ _____________________________________________________________________ 【写作指导】一、审题定调倡议书是为了开展某项工作、完成某项任务或进行某项活动而倡议大家一起做某事，或提出合理化建议、意见时使用的一种文体。

倡议书需写出倡议的目的、意义和有关背景；针对具体问题发出倡议，提出解决问题的具体措施；结尾一般表明倡议者的决心和希望，做出总结或再次呼吁大家采取行动。

倡议书的时态以一般现在时为主；人称以第一或第二人称为主。

二、谋篇布局本写作可分为三部分：第一部分：说明活动缘由；第二部分：提出改进建议；第三部分：发起倡议。

三、组织语言第一部分：说明活动缘由。

第二部分：提出改进建议。

第三部分：发起倡议。

【范文展示】◀普通范文▶Dear friends,As is known to all, our school has started a campaign to build a civilized school. That’s because there is still some bad behavior in our school. This is very harmful to the image of our school.Therefore, I suggest that we should protect the environment in our school, in ways such as not throwing rubbish anywhere. Besides, there are also some bad behavior such as smoking and fighting, which should be kept out of our schoo l. What’s more, to make our school better, we should always respect our teachers, help each other and work hard.Let’s start right now and take action to make our school more and more beautiful.◀高级范文▶Dear friends,As is known to all, our school has started a campaign to build a civilized school. The main reason is that some bad behavior still appears on our school, which gives people a bad impression of our school.Therefore, I strongly urge that we should do more to preserve the environment in our school, in ways such as not throwing rubbish anywhere. Besides, such bad behavior as smoking and fighting should also be removed from our school. Meanwhile, we should start with our behavior and perform good manners all the time. We should also promote the spirit of respecting our teachers, helping each other as well as working hard.I’m earnestly calling on everyone to spare no effort and contribute to making our school a nicer place.【实战演练】假定你是李华，你受学生会委托为校宣传栏“英语天地”写一封倡议书，号召大家摒弃不良的生活方式，养成健康的生活习惯。

高中英语人教版新课标选修六第四单元 Unit 4 Global warming 单元综合测评含答案详解

Unit 4 Global warming单元综合测评(时间:100分钟分值:120分)选择题部分Ⅰ.阅读理解(共两节,满分35分)第一节(共10小题;每小题2.5分,满分25分)阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。

AThe number of buses, taxis and other vehicles on Kenya’s roads is growing every day. Now, the country’s first electric-powered motorbikes are coming into the market. The bike is designed to cut down on pollution and aimed at low-income communities. Most motorbikes used in Kenya depend on gasoline as fuel, but not this new motorbike.Three university students developed the new ecotype bike. It catches the sun’s energy, stores it in batteries and uses it to charge the electric motor. Robert Achoge is one of the student inventors. “Our hope is that by th e fifth year, we will be able to cover the whole of Kenya with the electric motorcycle so as to conserve the environment and provide affordable transport.”The students have set up a charging station for the motorbikes in Nairobi. Riders can plug the bikes into any electrical outlet. The small battery can run for 70 kilometres when fully charged. Once the power is used up, the motorbike has to return to the station while another charged battery is connected to the bike. The US African Development Foundation (USADF) is providing finance for two solar-powered charging stations in the Kenyan port of Kisumu.Each ecotype bike costs about $700. One taxi operator says the new motorbike costs less to operate than that running on traditional gasoline. “When it comes to buying gasoline, there’s no need. It’s basically good for various things. As long as you won’t take quite a heavy load(装载量), you can go with it anywhere. Otherwise, it may break down halfway. But now people still have a preference to the gas-powered bi kes.”A Nairobi dealership is selling the ecotype bikes. Businessman Kennedy Kusimba hopes they will become popular. We also know they are more reliable compared to the gas-powered bikes.1.What do we know about the ecotype bike?A.It was developed by the USADF.B.Its energy comes from the sunlight.C.It can charge itself while running.D.It does more harm to the environment.2.What do people think of the ecotype bike?A.It’s better not to use it to carry too much.B.It is a good choice for the long-distance journey.C.It will take the place of gas-powered bikes soon.D.It is much more expensive than a traditional motorbike.3.Where does the text probably come from?A.A research plan.B.An advertisement.C.A government report.D.A science magazine.BSeveral years ago, the mayor of Chicago, Illinois, visited Germany, a leader in green roof design. Former Mayor Richard Daley later decided to have vegetation planted on Chicago City Hall. Today, the tops of many other buildings also look like parks. In Canada, the Coast Plaza Hotel in Vancouver has a forest on its roof. New York City has an unusual demonstration farm for hydroponics(水培).The farm is on a boat called the Science Barge. Rainwater and purified river water are used to grow lettuces, tomatoes, cucumbers and peppers. The farm shows the possibilities for designing rooftop systems.Green roofs are designed to save energy and capture rainwater. Rooftops covered with plants help keep buildings cool. They can extend the life of a roof. And they can reduce water running off into streets and storming water systems.Experts say green roofs usually do not get much above twenty-seven degrees Celsius. So temperatures might not be a problem for growing. But rooftop gardeners have to be careful not to put too much weight on the roof. This is true whether plants are grown in soil or water.Earlier in 2008, researchers in Texas reported that green roofs can reduce a building’s air conditioning costs by about one fifth compared to blacktop roofs. But they also reported that not all green roofs perform equally well. They found that designs differ in their ability to keep buildings cool and to capture rainwater. The researchers put experimental roofs on top of metal insulated boxes, to recreate green roof conditions. The study compared products from six companies to help businesses understand how to improve their designs. Each rooftop had sixteen different kinds of plants native to Texas. The researchers said the presence of native plants likely helped all the green roofs capture water better compared to sedums. Sedums are plants that need little water and often are used on green roofs. The native plants could take in more water and release more of it to the atmosphere.4.The author writes Paragraph 1 to .A. tell us what is the green roof designB. tell us Germany is the country that leads or guides the green roof designC. introduce some famous hotels in the worldD. lead to the topic of the passage5.The underlined word “storming” in Paragraph 2 can be replaced by “”.A. attackingB.controllingC.attractingD.managing6.According to the passage, which conclusion is WRONG?A. Sometimes green roofs may break down the house.B. Not all the green roofs can reduce the building’s air conditioning costs equally.C. Different designs of green roofs have different effects on buildings.D. Sedums are a kind of plants native to Texas.CThe Antarctic’s ice-white environment is going green and facing other unexpected threats. Scientists say that as temperatures go up in the polar region, invading (入侵) plants and insects, including the flies, cause a major threat.More and more of these invaders, in the form of larvae (幼虫) or seeds, are surviving in coastal areas around the South Pole, where the temperature has risen by more than 3℃over the past three decades. Glaciers have retreated, exposing more land which has been occupied by mosses that have been found to be growing more quickly and thickly than ever before—providing potential green homes for invaders.“The common house flies are a perfect example of the problem the Antarctic now faces from invading species,” said Dominic Hodgson of the British Antarctic Survey. “It comes in on ships, where it exists in kitchens and then at bases on the continent. It now has an increasing chance of surviving in the Antarctic as it warms up, and that is a worry. Insects like the house flies carry bacteria that could have a deadly effect on native life forms.”The Antarctic has several native species of insects. Together with its native mosses, these are now coming under the increased threat from three major sources: visiting scientists, increasing numbers of tourists and global warming. However, it is global warming that is the main driver of the greening of the Antarctic.In 2015, more than 38,000 tourists visited the Antarctic. “These tourists are often very careful about not leaving waste or having mud. But they could carry seeds or larvae on their boots when they set foot on the Antarctic,” said Hodgson.More and more invasive insects and plants have been found on the Antarctic and have required removal. “The insects and plants that are native to the Antarctic have survived there for thousands of years,” said Hodgson. “We have got to act now if we want to save the environment.”7.What does the underlined word “mosses” in Paragraph 2 refer to?A. A kind of plants.B. House flies.C. Coastal areas.D. A kind of animals.8.What is the main cause of the Antarctic going green?A. Scientists’ coming.B. Global warming.C. A growing number of visitors.D. The rapid spread of native planting.9.What do we know about the house flies in the Antarctic?A. They are native to the Antarctic.B. They will disappear due to the cold climate.C. They seriously affected the Antarctic native species.D. They directly fly to the Antarctic from nearby islands.10.What’s the best title for the text?A. The Antarctic is faced with various threatsB. The Antarctic is becoming green and energeticC. More and more scientists get to explore the AntarcticD. Global warming has caused the temperature in the Antarctic to rise up第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。

人教版高中化学选修六第4单元课题一物质性质的研究第2课时实验4-2金属镁、铝、锌化学性质的探究

(2)ZnO：属于金属氧化物，ZnO 中锌元素化合价为＋2 价，因此 ZnO 应该具有金属氧化物的一般性质，ZnO 能与强碱反应。
(3)Zn(OH)2：属于碱，具备碱的通性，具有两性。
(4)ZnSO4：属于盐，具备盐的一般性质，从反应类型上看，可发生复分解反应和氧化还原反应。
[活活学学活活用用]
【思考、交流】
物质的性质有哪些？
物理性质：颜色、气味、状态、熔点、沸点、密度、溶解性、导电性等
化学性质：类别: 通性化合价: 氧化性、还原性特性:
2.我们通常从哪些方面研究某一类物质(金属、非金属,有机物、无机物等)的性质？
❖ 物质的分类：通性（相同） ❖ 化合价：氧化性、还原性 ❖ 特性：（特殊性） ❖ 价类二元图像（铁）
硫酸溶液
Байду номын сангаас
氧化锌
粗ZnO 酸溶
KMnO4 PH=4
除铁、锰
少量锌
除镍、镉
残渣
残渣
残渣
… …ZnSO4·7H2O
镁与盐溶液发生置换反应
Zn(OH)2 和
ZnSO4 的化学性质
③向两支试管中分别倒入 1～2 mL Zn SO4溶液，然后用胶头滴管逐滴分别滴入几滴 NaOH 溶液、
两支试管中均产生白色沉淀
盐溶液能
与碱溶液反应， Zn(OH)2
氨水
是弱碱
④将③得到的 Zn(OH)2 浊液倒入三支试管中，然后分别向试管中滴加盐酸、NaOH 溶液、氨水
（4）ZnSO4·7H2O结晶：量取精制后的ZnSO4母液于100mL烧杯中,滴加3 mol·L-1H2SO4调节至溶液的pH≈1,将溶液转移至洁净的蒸发皿中,水浴加热蒸发至液面出现晶膜后,停止加热,冷却结晶,减压过滤,晶体用滤纸吸干后称量,计算产率

人教版选修六第四单元词汇优质课件趣味U4 Words and expressions

average
adj.平均的；普通的；中等的
Freddy was an average student,but not an填空中常考查其固定搭配中的介词和冠词。
1. In fact the UK Tea Council claims that British people drink
contribute
vi.&vt.捐助；捐款；促成；（给报纸、杂志）撰稿；投稿
contribute to 有助于；促成；造成；促使；向...投稿；为...撰稿
It's said that studying English well will contribute to playing computer games.
3. She turned and walked off in the__o_p_p_o_s_i_te_（oppose)
direction.
（2)oppose 在完形填空中常考查对其词义的把握。 4.“I have rights. I have the right of education. I have the right to play. I have the right to sing. I have the right to talk. I have the right to go to the market. I have the right to speak up. "
（1)oppose 在语法填空中的考法涉及：①oppose后跟动名词作宾语；②固定搭配 be opposed to,其中 to 为介词；③词性转换 opposite adj. 相反的；对面的；对立的。
1. The villagers opposed___b_u_il_d_i_n_g___（build) a

高中英语Unit4 Global warming文章 Global Warming人教版选修六

Global Warming: Whose Problem is it Anyway?It no longer seems to make a difference who started the global warming problem, and by “problem,〞I am referring to the likely enhancement of the naturally occurring greenhouse effect as a result of human activities. Those activities primarily center on the release of carbon dioxide through the burning of fossil fuels such as coal, oil and natural gas. Other heat-trapping greenhouse gases include methane, nitrous oxide and chlorofluorocarbons (CFCs).In their march to industrialization, rich countries have basically saturated the atmosphere with these heat-trapping gases. Each year, the atmospheric concentration of carbon dioxide (arguably the most important of the greenhouse gases) increases by more than a part p er million by volume. Doesn’t that sound infinitesimal? It does to me. But, infinitesimal concentrations become significant when accumulating in the atmosphere year after year, as carbon dioxide has since the onset of the Industrial Revolution in the mid-1700s.As we settle into the 21st century, new major greenhouse-gas-producing nations are appearing on the scene, such as India and China. They want to develop their economies, and they have a right, as well as a responsibility, to their citizens to do so. But they are also going to be emitting a larger share of heat-trapping gases, overtaking the industrialized countries that have been the dominant producers of greenhouse gases in the past. Now what?A couple of decades ago, I chose to divide the observers of global warming into three groups: hawks, doves and owls. In the mid-1980s, there were some hawks (those who are convinced beyond a reasonable doubt that human activities not only can, but also are, altering the chemical composition of the atmosphere in ways that influenceglobal climate); some doves (those who believe that Earth’s atmosphere is so robust that it can absorb any insult that humans might do to it. Besides, if it gets really serious, either technology will save us, or we Americans can move north into Canada); and mostly owls (those who lean either toward the hawks’ or the doves’ view, but are still not sure what the truth is).Twenty-five years later, the hawks have increased in number, while the doves are about the same with maybe a few m ore vocal personalities. And the owls’ numbers have reduced due to new scientific information — appearing in the media alongside scary photos of disintegrating ice sheets in the Antarctic and depletion of sea ice in the Arctic, stories about a seeming incr ease in various “superstorms,〞and advertisements from Shell and BP telling us that they too are worried about global warming.Since 1985, however, another category has emerged: the ostrich. The ostriches include those who refuse to think about global warming as a problem, who refuse to consider any new scientific research, and who think that someone somewhere will solve this problem before it becomes a crisis.Global warming is not a hoax. It actually happens naturally. Industrialization processes in rich countries and now in developing ones are abetting the naturally occurring greenhouse effect.Some say we are spinning out of control, pointing to the Arctic as a “canary in the global warming mine.〞The Inuit are worried. They are on the proverbial firing line, according to scientists who remind us that a 1 degree warming in the mid-latitudes will be associated with a 3 to 4 degree warming in the higher latitudes. What we are hearing from the scientists is that we are at or near tipping points — irreversible thresholds of change — for certain species, countries and civilizations.But although we talk a lot about doing something about global warming, we do not have a whole lot of meaningful action. “Let them eat carbon dioxide〞seems to be the current response of various governments, despite words of concern. Is anyone trying to cut back on carbon dioxide emissions?Cutting back on carbon dioxide production is much easier to say than to do. The task of cutting back worldwide is made much more difficult because of the virtual lack of participation of the United States as a leader on the global warming issue in the international community. It is hard to keep bailing out the water at one end of a sinking boat, while someone at the other end insists on drilling holes in the hull.The business community, at-risk cities and island nations are increasingly calling for action to combat human-induced global warming. What is needed? Only an active government policy around which a coalition can rally will thoroughly address the complex issue.Alas, the issue demands government leadership from the “bully pulpit〞that calls for and wholeheartedly supports an all-out “war on global warming.〞In my view, it is the only way to address the global warming problem with some sense of optimism.Societies need to find new and more efficient ways to fuel their growing economies. The wars on crime, prostitution, alcohol, drugs and even terror are not really winnable wars. They are not winnable in the sense that views on these issues represent underlying differences of opinion. However, the physics of the atmospheresuggests that we (civilizations) are on a collision course with Mother Nature, and if atmospheric science is correct, there is little time for delay.The war on global warming should begin now. With government support (moral and financial) and a search for new ways to keep our industries progressing withoutadding greenhouse gases to the atmosphere, there is a real chance for the global community to pull together.Technology alone, especially if it is expected to be applied only at the proverbial 11th hour, can’t save us from many of the projected and foreseeable negative impacts of global warming. For an example of thinking ahead, take the Netherlands.The Dutch have successfully fought off the floods of the North Sea for centuries, with few breaches in recent times (1953 comes to mind). The Netherlands have even contracted with the U.S. federal government for a few hundred million dollars, to assist in developing levees that can withstand certain intensities of tropical storms around New Orleans.Despite their levee-making skills, however, the Dutch know their limits. The Netherlands is now working to develop a “Hydropole,〞a city that can live on the rising waters. They know they need to do something to protect the 70 percent of the country that is below sea level, when a warmer atmosphere leads to rising seas.Other countries need to follow by accepting the potential changes that lie ahead, and working now to plan for those changes and to curb actions that would otherwise fuel more change. Only with an aggressive war on global warming, supported by the entire international community of nations and with participation of the United States, can we learn to live within the guidelines of nature, respecting her thresholds of change by choosing not to cross them.。

人教版高中英语选修六 Unit4 Global warming-语法篇(学生版)

人教版高中英语选修六 Unit4 Global warming-语法篇（学生版）Unit4 Global warming-语法篇_____________________________________________ __________________________________________________________________________________ _____________________________________1.掌握it在强调句中的用法；2.能够利用这个语法点进行遣词造句并运用到写作中；it的用法—强调句型一、强调句型的基本用法英语中常用的强调句型是：It is / was + 被强调部分(主语、宾语、状语) + that / who / whom + 其他部分。

一般来说，被强调部分指人时，用who或whom，其他情况用that，但that也可指人。

现在用强调句型强调下面这个句子的主语、宾语和状语。

She met John at Mary’s birthday party last Sunday.→It was she who / that met John at Mary’s birthday party last Sunday. (强调主语)→It was John Whom / that she met at Mary’s birthday party last Sunday. (强调宾语)6. 被强调部分若是句子的主语，that / who之后的谓语动词在人称和数上应与句子的主语保持一致。

eg：It is I that / who am your friend that will come to help you.二、强调句型的几种较为复杂的结构形式1.被强调部分为状语从句。

Eg: It was when Tom was eleven years old thathis talent for writing became obvious.2.被强调部分含有定语从句。

人教版高中化学选修六高二第四单元实验4-3含氯消毒液性质、作用的探

人教版化学高二选修6第四单元实验4-3含氯消毒液性质、作用的探究同步练习一、选择题1. 自来水养金鱼时，通常先将自来水日晒一段时间后，再注入鱼缸。

其目的是( ) A．利用紫外线杀死水中的细菌B．提高水温，有利金鱼生长C．增加水中氧气的含量D．促使水中的次氯酸分解答案：D解析：解答：自来水常用Cl2做消毒剂，Cl2溶于水会与水反应生成HClO，HClO是强氧化剂，影响金鱼的生长，而HClO见光能分解，故选D。

分析：本题考查氯气与水的反应、次氯酸的强氧化性等，题目难度不大。

2. 世界卫生组织(WHO)将二氧化氯(ClO2)列为A级高效安全灭菌消毒剂，它在食品保鲜、饮用水消毒等方面有着广泛应用，由此可判断二氧化氯( )A．是强氧化剂B．是强还原剂C．是离子化合物D．分子中氯元素为－1价答案：A解析：解答：ClO2中氯元素为＋4价，具有较强的氧化性，可用于消毒、食品保鲜。

分析：本题考查氧化还原反应中氧化剂和还原剂的判断，熟练掌握根据化合价变分析氧化还原反应的能力是解题的关键。

3. 下列物质露置在空气中易变质的是( )①漂白粉②苯酚③水玻璃④硫酸钠⑤烧碱⑥亚硫酸钠⑦胆矾⑧硬化油⑨VcA．除④⑦⑧外B．除④⑦外C．除⑥⑦⑧外 D．全部易变质答案：A解析：解答：苯酚和亚硫酸钠易被空气中的氧气氧化，漂白粉、水玻璃、烧碱易吸收空气中的二氧化碳，只有硫酸钠、胆矾和硬化油在空气中是稳定的。

分析：本题考查氧化还原反应的分析，熟练掌握常见化学物质的性质和在空气中的反应是解题的关键。

4. 一定条件下新制的氯水中，加入少量下列物质，能使HClO的浓度增大的是( )①CaCO3(固)②AgNO3(1 mol·L－1)③蒸馏水A．①② B．②C．②③ D．①答案：A解析：解答：Cl2＋H2O=H＋＋Cl－＋HClO加①：CaCO3＋2H＋=Ca2＋＋H2O＋CO2↑，酸性H2CO3>HClO；加②：Ag＋＋Cl－=AgCl↓，平衡移动；加③：平衡移动，但HClO的浓度降低。