Unit2 Materials

合集下载

九年级英语(上) Unit 2测试题

九年级英语(上) Unit 2测试题

九年级英语(上册) Unit 2测试题一、阅读理解A(2021梧州改编)Recycling is a way to take rubbish and turn it into new products. It's helpful to our environment. There are a number of different recycling steps that allow materials to be used more than once.All kinds of materials can be recycled. Some of the most common things in use today include recycling plastic, glass, metals and paper. Things made of these materials include plastic milk boxes, newspapers, computers and cardboard boxes.There are a number of advantages for recycling. These include: Landfills(垃圾填埋场)—Recycling materials means less rubbish and saves space in landfills. Resources—When we use materials again, this means we can take fewer resources from the earth. Pollution—In general, recycling materials can produce less pollution, helping to keep our environment clean.Be sure to recycle everything you can in your house and school. There is almost a “recycle” rubbish can around. Be sure to drop your used aluminum cans(铝合金罐) and plastic bottles there. At home, be sure to put paper things like the newspapers, paper boxes, and homework pages into the recycle box.Plastics are usually marked with an identification code(识别码) that shows a recycling symbol and a number from 1 to 7. This shows that the type of chemicals, or materials, is used in making the plastic. Used paper can be recycled around seven times.It is high time we set up a recycle station in every street, across the city and the country, so the cleaners can transport the rubbish conveniently. This is the only way out for handling rubbish without causing danger to the environment and our health. For ourselves, our children and our children's children, let's take action NOW!()1. Which is not the advantage of recycling?A. It can save energy.B. It can save resources.C. It can produce less pollution.D. It can reduce the amount of rubbish and save space.()2. What kinds of materials are usually marked with an identification code?A. Paper.B. Plastics.C. Glass.D. Metals.()3. Which paragraph gives suggestions on how to recycle in our daily life?A. Paragraph 3.B. Paragraph 4.C. Paragraph 5.D. Paragraph 6.()4. What does the word “handling”mean in Chinese?A. 生产B. 收购C. 处理D. 变卖()5. What's the main idea of the text?A. We should take action to recycle rubbish.B. Many resources can be saved by recycling.C. We should recycle everything in our daily life.D. Recycle stations should be set up in the street.BWant to save the earth?Plant a tree![植树造林]What's causing global warming? Is it man­made? Or are temperatures simply changingnaturally? 6.__________ But how?The Wilderness Project has an idea. 7.__________ If the earth has more trees, greenhouse gases will be reduced, and this will help stop global warming. What's more, trees can improve human health by producing oxygen and improve air quality.8.__________ In Belgium, the Organization for Forests worked with farmers to help them plant more trees. In Spain, the Canopy Project plants one tree for every Spaniard(西班牙人) in order to improve the environment. In Germany, a teenager named Felix Finkbeiner has been leading a global movement to plant more trees. 9.__________Now, lots of people all over the world have already been planting more trees. In fact, if everyone plants one tree, just one, it will do great good to our environment.10.__________ Maybe you can buy a young tree to grow, although you need to get advice on how to look after it. Or you can join a tree planting project such as the ones mentioned above to help save the earth.So, go on, plant a tree... and save the earth!根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳选项,使文章意思通顺、内容完整。

unit 2 Engineering Materials

unit 2 Engineering Materials

10lucky
Ceramic-matrix Composites (CMC)(陶瓷基复合材料)
Composites with a ceramic matrix are another important development in engineered materials because of their resistance to high temperatures and corrosive environments. (陶瓷基复合材料是工程中又一重大成就,因为它们具有 很好的抗高温及抗腐蚀性能)
16lucky
Key
sentences
6、Porous Aluminum Blocks of aluminum have recently been produced that are 37% lighter than solid aluminum and have uniform permeability (microporosity). This characteristic allows their use in applications where a vacuum or differential pressure has to be maintained. Examples are the vacuum holding of fixtures for assembly and automation and the vacuum forming or thermoforming of plastics.
1、Engineering Materials
1lucky
Introduction
In generally, engineering materials may be further subdivided into metals, ceramics, composites and polymers. (金属、陶瓷、复合材料和聚合物)

Unit 2 Selection of Construction Materials123

Unit 2 Selection of Construction Materials123

Unit 2 Selection of Construction Materials工程材料的选择There is not a great difference between “this” steel and “that” steel; all are very similar in mechanical properties. Selection must be made on factors such as , price, and availability, and not with the i dea that “this” steel can do something no other can do because it contains 2 percent instead of 1 percent of a certain alloying element, or because it has a mysterious name. A tremendous range of properties is available in any steel after heat treatment; this is particularly true of alloy steels.在钢之间没有太大的区别;所有的钢在机械性能方面都是近似的。

它们的选取标准是诸如脆硬性,价格,和可用性等。

不仅仅是因为这种钢含有2%的合金元素另一种钢含有1%而使前者具有了后者没有的某些能力,或者是某种钢具有神奇的名字。

经过热处理后,任何一种钢都具有大范围的特性;这种性质同样在合金钢中存在。

Considerations in fabricationThe properties of the final part (hardness, strength, and ), rather than properties required by forging, govern the selection of material. The properties required for forging have very little relation to the final properties of the material; therefore, not much can be done to improve its . Higher-carbon steel is difficult to forge. Large grain size is best if subsequent heat treatment will refine the grain size.关于加工的考虑最后零件的特性(硬度、强度和可加工性)而不是锻造特性决定了材料的选择。

Unit2重点词汇讲义-高二英语人教版选择性

Unit2重点词汇讲义-高二英语人教版选择性

选修二unit2重点词汇Physical adj.身体的,肉体的;物质的,有形的;形状的,外在的;近义词:personal/material/natural同根词:adj.physicochemical物理化学的adv.physically身体上,身体上地n.physics物理学;物理现象physicist物理学家;唯物论者physic医学;药品〔特指泻药〕physicality肉体性physiatrics物理疗法physicalism物理主义vt.physic给…服药;治愈词组:physical education体育课;体育教育physical model物理模型;实体模型physical property物理性质;实物财产physical chemistry物理化学physical training. 体育;体能训练;身体训练physical fitness身体健康;体力;身体相宜性physical activity身体活动,体育活动;体力活动physical examination体格检查physical exercise体育运动;身体操练physical health身体健康physical distribution物流,物资调运physical strength 体力physical condition身体状况;实际条件;物理状态physical culture. 体育physical quality身体素养physical therapy 物理治疗法physical geography自然地理学physical environment物理环境,实体环境;自然环境physical process物理过程;自理过程physical world物质世界;物理世界Abuse v./n虐待;滥用,辜负;近义词punishment/vice同根词:adj.abusive辱骂的;滥用的;虐待的adv.abusively滥用地;辱骂地n.abused滥用,恶习;受虐词组:drug abuse药物滥用;滥用child abuse虐待儿童,摧残儿童substance abuse物质滥用;滥用药物abuse of power滥用权力alcohol abuse酒精滥用,酗酒physical abuse躯体虐待;身体损害;外观损坏verbal abuse言语虐待;口头谩骂;说粗话,用污言秽语emotional abuse精神虐待●Rely v.信任,信任;依靠,依靠近义词:trust/hope同根词:adj.reliable牢靠的;可信任的adv.reliably牢靠地;的确地n.reliable牢靠的人reliability牢靠性词组:rely on依靠,依靠●pose v.组成,构成;作曲近义词:constitute/form/structure/calm 同根词:adj.posite复合的;合成的;菊科的posed冷静的;镇静的posing起冷静作用的positional组成的;创作的;作曲的n.position作文,作曲;[材] 构成;合成物posite复合材料;合成物;菊科poser作曲家;作家,著作者;设计者posure冷静;镇静posing组成;[印刷] 排字positor[印刷] 排字工人词组:pose oneself冷静pose of由…组成●Liberation n.解放,解放运动;解脱;释出近义词:release/emancipation同根词:adj.liberated无拘束的;放纵的n.liberator解放者;释放者词组:war of liberation解放战斗women's liberation妇女解放运动,女权运动●Disturb v.打搅,阻碍;使焦虑,使苦恼;移动,弄乱近义词:let/violate同根词:adj.disturbing令人担心的;烦扰的disturbed扰乱的;为心理失常者而设的n.disturbance干扰;骚乱;忧虑disturber打搅者;干扰放射机词组:disturb the social order扰乱治安disturb sb打搅某人●Dynamic adj.布满活力的,精力充分的;/n.动力,活力近义词:trends/momentum/impetus同根词:adj.dynamical动力学的〔等于dynamic〕;有生气的;有力的adv.dynamically动态地;布满活力地;不断变化地n.dynamics动力学,力学dynamism活力;动态;物力论;推动力;精神动力作用dynamometer测力计;功率计;动力计词组:dynamic model动态模型;动力模型dynamic response动态响应;动力特性dynamic analysis动态分析;动力特性分析dynamic performance 动态特性dynamic simulation动态仿真dynamic characteristic动态特性;负载特性曲线dynamic system动力系统dynamic programming动态规划;动态程序设计dynamic load动载荷,动力载荷dynamic behavior动态行为;动态特性;能动行为dynamic balance动态平衡,动平衡dynamic range动态范围dynamic data动态数据;动态资料dynamic stability动态稳定性;动力稳定度dynamic stress动态应力,动力应力dynamic control动态掌握;动力掌握dynamic pressure动压力dynamic test动态测试dynamic equilibrium动态平衡;动力平衡fluid dynamic流体动力学的●Specialist n.专家;专科医生/ adj.专业的;特地的;专家的近义词:expert/professional同根词:n.special特使,特派人员;特刊;特色菜;专车;特价商品specialty专业,专长;特产;特性;招牌菜speciality专业,专长;特性specialization特地化;特殊化;特化作用adj.special特殊的;特地的,专用的specialty特色的;特地的;的specialized专业的;特地的vi.specialize特地从事;词组:Specialist Physicians专科医生specialist system专家系统;专家制度heart specialist心脏病专家●Consultant n.参谋;高级参谋医师,会诊医师;询问者近义词:adviser/counselor同根词:adj.consultative询问的consultive询问的n.consultation询问;磋商;[临床] 会诊;争论会consultancy询问公司;参谋工作vi.consult请教;协商;当参谋词组:management consultant管理参谋marketing consultant营销参谋;市场参谋;销售参谋consultant firm询问公司;参谋公司consultant management参谋工程管理Stressed out 紧急的;有压力的近义词:tensed up/keyed up词组:stressed syllable重音节stress on对…的强调under stress在受力时;在压力之下lay stress on留意,重视。

(土木工程英语)_Unit 2 Civil engineering materials_

(土木工程英语)_Unit 2 Civil engineering materials_
Mud brick: made on site from local soil(with enough clay content); mixed with water and reinforcing materials; pressed and dried; sustainable, recyclable, non-toxic and healthy.
Concrete literally holds our cities together.
But it has a dirty secret: the production of this ubiquitous gray material releases tons of CO2 each year, contributing to the calamity of climate change.
Grasscrete: laying concrete allowing grass or flora to grow; reducing concrete usage& improve storm water absorption and drainage.
Hempcrete: created from the woody inner fibers of the hemp plant; bound with lime as concrete-like shapes; super-lightweight; fastgrowing and renewable resource.
In the past: raw materials—availability, low cost, but short endurance
In the present: advanced materials—result of high technology, maybe of high cost, but with long endurance & great functions

材料科学与工程专业英语课后答案

材料科学与工程专业英语课后答案

1.“Materials science"involves investigating the relationships that exist between the structures and properties of materials. In contrast, "Materials engineering" involves, on the basis of these structur e-property correlations, designing or engineering the structure of a material to produce a predeter mined set of properties.“材料科学”涉及研究材料的结构和性能之间的关系。

相反,“材料工程”是指在这些结构和性能相关性的基础上,基于预期的性能来设计或生产有预定性能的材料。

2.Virtually all important Properties of solid materials may be grouped into six different categories: mechanical, electrical, thermal, magnetic, optical, and deteriorative实际上,固体材料的所有重要性质都可以分为六类:机械、电气、热、磁、光学和腐蚀性。

3.In addition to structure and properties, two other important components are involved in the scien ce and engineering of materials- namely“processing”and“performance”.除了结构和性能之外,材料科学和工程还涉及另外两个重要的组成部分,即“加工”和“性能”。

高一英语必修二unit2知识点总结

高一英语必修二unit2知识点总结

高一英语必修二unit2知识点总结高一英语必修二Unit 2 知识点总结Unit 2主要涵盖了有关世界文化遗产的话题。

通过学习本单元,我们能够了解到不同文化背景下的重要历史遗迹以及它们对人类文明的贡献。

以下是本单元的重点内容总结:1. 了解文化遗产(Understanding cultural heritage)- 文化遗产是指由过去文明所留下来的具有历史、艺术和社会意义的物质和无形的遗产。

- 文化遗产可以是建筑物、古迹、艺术品、传统技艺、习俗和传统节日等等。

2. 介绍著名的文化遗产(Introducing famous cultural heritage)- 了解著名文化遗产的历史背景和重要性,如埃及金字塔、泰姬陵、中国长城等。

- 学习描述文化遗产的词汇和短语,如古老的、壮丽的、独特的等。

3. 学习被动语态(Passive Voice)- 被动语态用于强调动作的接受者,或者说不知道动作的执行者是谁。

- 被动语态的构成:be+过去分词,根据时态和语态的要求进行相应的变换。

4. 阅读技巧(Reading Skills)- 学习如何通过阅读理解文章中的关键信息。

- 注意上下文和词汇的联系,利用上下文猜测词义。

5. 语法重点(Grammar Focus)- 学习并掌握几种非谓语动词形式的用法,如动名词、不定式和分词。

- 注意非谓语动词在句子中的作用和与其他成分的搭配。

6. 扩展阅读(Extensive Reading)- 阅读有关世界文化遗产的文章,拓宽对于世界各地文化的了解。

- 提高阅读理解技巧,增加词汇量。

7. 写作技巧(Writing Skills)- 学习如何写一篇关于世界文化遗产的文章,介绍其历史和重要性。

- 注意文章的结构,包括引言、主体和结论,并适当使用连接词使文章连贯。

以上是关于高一英语必修二Unit 2的知识点的总结。

通过学习这些内容,我们能够更好地了解世界各地的文化遗产以及它们的重要性。

Unit t 2 Raw Materials for the Production of Iron_冶金专业英语

Unit t  2  Raw Materials for the  Production of Iron_冶金专业英语

Text
The portion of the ore that is too fine to be charged directly into blast furnace is usually agglomerated. The most important processes are: 1) sintering; 2) palletizing.
Text
Table2-1 Iron ores classed by chemical composition
Class and Mineralogical Name
Chemical Composition of Pure Mineral Fe3O4 Fe2O3 FeTiO3 nFe2O3·mH2O FeCO3 FeS2 FeS
Text
Difficult Sentences
Words & Expressions
Translation
BACK
Translate the following expressions into English
Fill in the blanks with the words from the text
BACK
根据上下文选择词义 根据词类选择词义
BACK
Background Information
高炉炼铁的原料可以分为以下几 类:含铁原料、燃料以及熔剂。
Background Information
Text
The raw materials for the production of iron in the blast furnace can be grouped as follows: Iron-bearing Ironmaterials, fuels and fluxes. 1.Iron1.Iron-bearing materials The major iron-bearing materials are iron ores, ironsinter and pellets in the blast furnace. Their function is to supply the element iron, which is 93 to 94 per cent of the pig iron produce. Iron ores are classed by their chemical compositions, such as oxides, sulfides, carbonates, etc, as shown in the table 2-1. 2-
  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

Unit2 MaterialsExercise1:1)The Times:2)The Wall Street Journal:3)The Financial Times:4)Guardian:5)The Daily Telegraph:6)The Observer:7)The Spectator:8)The Economist:9)The Sun:10)Los Angeles Times:11)The New York Times:12)The Washington Post:13)Reader’s Digest:14)Newsweek:15)Fortune:16)Time:17)USA Today:18)U.S. News & World Report:19)The Christian Science Monitor:20)International Herald Tribune:21)New Statesman:22)The Daily Mirror:Unit2 materialsJapan marks anniversary of WWII's endBy HIROKO TABUCHI, Associated Press WriterAugust, 2007TOKYO - Veterans, relatives of war dead and lawmakers crowded a controversial Tokyo war shrine Wednesday as Japan marked the 62nd anniversary of its World War II surrender. But with political sensitivities higher than ever, Prime Minister Shinzo Abe and his Cabinet stayed away.Chief Cabinet spokesman Yasuhisa Shiozaki said none of Abe's 16-member Cabinet planned to visit the shrine. It would be the first time in at least 20 years that no Cabinet member had gone on the surrender anniversary, although 46 members of parliament did attend, down from 62 last year."Each minister made the decision on their own not to go," Shiozaki said.Later Wednesday, Abe was to speak at a ceremony with Emperor Akihito at the Budokan arena, which is near Yasukuni, in honor of Japan's war dead.Abe, who came to power in September on a strongly nationalist platform, has argued it is natural for a head of state to pay homage to Japan's fallen soldiers. However, reeling from a huge setback at last month's parliamentary elections, Abe has toned down his hard-line rhetoric.Yasukuni, a Shinto shrine established in 1869, is vilified by critics for its role in shaping Japan's war ideology in the 1930s and '40s, and promoting Tokyo's imperialist expansion in Asia.The shrine also deifies war criminals executed after World War II, such as wartime leader Hideki Tojo. It hosts a museum that depicts Japan's conquests as a crusade against Western colonialism. Abe's predecessor, Junichiro Koizumi, made repeated visits to the shrine — including one on the surrender anniversary last year — and incensed China and South Korea, triggering refusals to hold summits with him. Koizumi paid a visit to Yasukuni early Wednesday.Abe regularly prayed at Yasukuni before he became prime minister, but has not gone since. He has pushed through legislation aimed at amending the country's pacifist constitution, and has upgraded the Defense Agency to a full ministry — part of efforts to give the Japanese military a larger global role. He has also introduced laws-requiring schools to teach patriotism.Some visitors to the shrine were disappointed Abe wasn't there."It will be a disgrace if no ministers turn up. Koizumi came despite the pressures not to," said Hisashi Kimura, 38, who says he comes every year to pray on Aug. 15. "I would have expected the same from Abe."The Queen and Gordon Brown have congratulated Pakistan on the 60th anniversary of its independence.Press AssociationTuesday August 14, 2007The Prime Minister insisted the "history, values and hopes" of the country were "permanently intertwined" with those of the UK.In a message to his opposite number Shaukat Aziz, Mr Brown said: "I congratulate this great country, and send my best wishes from the British people."The Prime Minister continued: "I celebrate the strength of the UK-Pakistan relationship. Our history, values and hopes are, and will remain, permanently intertwined."The Queen, who visited Pakistan for the 50th anniversary celebrations, also sent a personal message to President General Pervez Musharraf - a prominent supporter of the US-UK led campaign against al Qaida.Pakistan was created on August 14, 1947 when British India was split in two. The division resulted in riots across the subcontinent, with hundreds of thousands killed amid mass migration by Hindus and Muslims. Brown urged to hold EU referendum (公民投票)Press AssociationWednesday August 22, 2007Gordon Brown is due to meet German Chancellor Angela Merkel as pressure continues to mount for a referendum on the controversial EU treaty.The focus of the talks is set to be international development, but the Prime Minister faces renewed calls from the Tories to hold a referendum on the treaty, which replaced the scrapped constitution.Following the meeting, keen football fan Mr Brown will take Ms Merkel to the international friendly between England and Germany at the new Wembley stadium.A Downing Street spokeswoman would not confirm the constitution will be raised in talks between the two leaders, but said "they will discuss the key issues facing them both".She added: "The discussions are likely to focus on international development. Within that, they are likely to focus on health, which is a very important priority for the Prime Minister."The Tories have called for a referendum on the treaty, which they claim borrows heavily from the constitution abandoned after the public voted against it in France and Holland.Shadow Europe minister Mark Francois told he would like Mr Brown to tell his German counterpart "that public opinion is running so high on the issue of a referendum that he now feels he has to honour his - and Labour's - manifesto pledge and grant a referendum on the EU constitution".Eurosceptic group the Campaign for an Independent Britain is also planning a major rally to bring pressure on the Government to hold a referendum.Tory MP Bob Spink will head the steering group that will organize the rally, which is scheduled to take place in Trafalgar Square on Saturday, October 27.Castle Point MP Mr Spink said: "The London rally is the nation's opportunity to give a show of force for a referendum - and to remind the Prime Minister of public anger about Brussels' latest power grab."。

相关文档
最新文档