高中英语必修三第四单元知识点总结

高一必修三英语unit4知识点Unit 4: AdvertisingI. IntroductionAdvertising is a powerful form of communication used by companies to promote their products or services. In this unit, we will discuss various aspects of advertising, including different types of advertising, advertising techniques, and the impact of advertising on society.II. Types of Advertising1. Print AdvertisingPrint advertising refers to advertisements that are printed in newspapers, magazines, brochures, or any other printed materials. This type of advertising is effective in reaching a specific target audience and allows for detailed information to be provided.2. Broadcast AdvertisingBroadcast advertising includes television and radio commercials. It is a popular form of advertising as it reaches a wide audience and allows for audiovisual effects to create a lasting impact on viewers.3. Online AdvertisingWith the rise of the internet, online advertising has become increasingly prevalent. This includes display ads, search engine marketing, social media advertising, and video ads. Online advertising offers precise targeting and immediate feedback.III. Advertising Techniques1. Emotional AppealMany advertisements aim to evoke emotions in order to connect with the audience. By creating an emotional connection, companies hope to establish a positive association with their brand or product.2. Celebrity EndorsementsCelebrity endorsements involve well-known individuals promoting a product or service. This technique leverages the popularity and influence of celebrities to gain the trust and attention of consumers.3. Bandwagon EffectThe bandwagon effect is based on the idea that people are more likely to adopt a certain behavior or purchase a product if they believe others are doing the same. Advertisements often use phrases such as "Join the trend" or "Be part of the crowd" to create a sense of conformity.4. TestimonialsTestimonials feature real or fictitious individuals who provide positive feedback or personal experiences with a product or service. This technique aims to build trust and credibility with potential customers.IV. Impact of Advertising on Society1. ConsumerismAdvertising plays a significant role in promoting consumerism, creating a desire for material possessions, and shaping the way people perceive theirneeds and wants. This can lead to excessive consumption and unnecessary spending.2. Body ImageAdvertisements often present unrealistic and idealized body images, which can contribute to body dissatisfaction and low self-esteem, especially among young people. This can have detrimental effects on mental health.3. Cultural InfluenceAdvertising has the power to shape cultural norms and values. It can influence societal attitudes towards gender, race, and other social constructs. Therefore, responsible advertising is crucial to avoid perpetuating harmful stereotypes.4. Economic ImpactAdvertising fuels economic growth by stimulating demand for products and services. It provides employment opportunities within the advertising industry and contributes to overall economic development.V. ConclusionIn conclusion, advertising is a multi-faceted field that encompasses various types and techniques. While advertising has its advantages in promoting products and services, it also has significant effects on society. As consumers, it is important to be critical of the messages conveyed through advertising and make informed decisions. Likewise, companies have a responsibility to create ethical and socially responsible advertisements.。

高一英语必修三unit4的知识点高一英语必修三Unit 4的知识点Unit 4 of the high school textbook for first-year English students focuses on the topic of Earthquakes. In this unit, students will be introduced to various aspects related to earthquakes, including their causes, effects, and ways to minimize damage. This article will provide an overview of the key knowledge points covered in Unit 4.1. Introduction to Earthquakes- Earthquakes are natural events that occur when there is a sudden release of energy in the Earth's crust, resulting in seismic waves.- The focus (hypocenter) refers to the point underground where the earthquake originates, while the epicenter is the point on the Earth's surface directly above the focus.- The magnitude of an earthquake is a measure of its size, which is usually determined using the Richter scale.2. Causes of Earthquakes- Earthquakes can be caused by tectonic plate movements, such as convergent, divergent, and transform boundaries.- Subduction zones, where one tectonic plate is forced beneath another, are particularly prone to producing powerful earthquakes.- Human activities, such as mining and the creation of reservoirs, can also trigger seismic events known as induced earthquakes.3. Effects of Earthquakes- Primary effects of earthquakes include ground shaking, surface ruptures, and tsunamis (ocean waves triggered by seismic activity).- Secondary effects may include landslides, fires, and the destruction of buildings and infrastructure.- Earthquakes can also lead to human casualties and displacement, as well as long-term economic and social consequences.4. Examining Earthquakes- Scientists use seismographs to measure seismic waves and record earthquake data.- The data collected allows them to determine the location, magnitude, and depth of an earthquake.- Earthquakes can be classified as foreshocks (smaller earthquakes preceding a larger one) and aftershocks (smaller earthquakes that follow the main shock).5. Earthquake Preparedness and Mitigation- Building codes and construction practices can help prevent or minimize damage caused by earthquakes.- Early warning systems can provide valuable seconds to minutes of advance notice, allowing people to take cover or evacuate.- Public education and awareness campaigns play a crucial role in ensuring communities are prepared for earthquakes.6. Case Studies- Unit 4 includes case studies on significant earthquakes from around the world, such as the 1906 San Francisco earthquake and the 2011 Tohoku earthquake and tsunami in Japan.- These case studies provide real-life examples of the causes, effects, and responses to earthquakes, offering students a deeper understanding of the topic.In conclusion, Unit 4 of the high school English textbook explores the topic of earthquakes. Through studying this unit, students will gain knowledge about earthquakes' causes, effects, examination methods, and ways to prepare and mitigate their impact. By understanding thesekey points, students will develop a greater awareness of earthquakes and their significance in our world.。

必修三Unit4 必背单词和词块(一)背阅读单词——会认就行(背诵时遮住右侧汉语，先自主翻译，后比对词义)1.procedure n．程序；步骤；手续2．mental adj. 精神的；思想的3．gravity n. 重力；引力4．frontier n. 边境；国界；边远地区5．vehicle n. 交通工具；车辆6．launch vt.&n. 发射；发起；上市7．recycle vt. 回收利用；再利用8．current adj. 当前的；现在的n. 水流；电流；思潮9．sufficient adj. 足够的；充足的10．facility n. 设施；设备11．fatal adj. 致命的；灾难性的12．mystery n. 神秘事物；谜(二)背重点单词——写对才行1．desire n. 渴望；欲望vt. 渴望；期望2．signal vt.&vi. 标志着；标明；发信号n. 信号；标志3．lack n. 缺乏；短缺vt. 没有；缺乏4．float vi.浮动；漂流；漂浮vt. 使浮动；使漂流5．otherwise adv. 否则；要不然6．beyond prep. 在更远处；超出7．keen adj. 热衷的；渴望的8．shallow adj. 肤浅的；浅的9．pattern n. 模式；图案；模范10．analysis n. (对事物的)分析；分析结果11．monitor n. 监视器；监测仪vt. 监视；监测；监控12．resource n. 资源；财力；物力13．attach vt. 系；绑；贴(三)背拓展单词——用准才行1．Intelligent adj.有智慧的；聪明的；有智力的→intelligence n．智力；聪明；智能2．determine vt.查明；确定；决定→determined adj.有决心的；意志坚定的→determination n．决心；决定3．disappoint vt.使失望→disappointed adj.失望的；沮丧的→disappointing adj.令人失望的→disappointment n．失望4．independent adj.独立的；自立的→independently adv.自立地；独立地→independence n．独立5．globe n．地球；世界；地球仪→global adj.全球性的；全世界的6．argue vt.&vi.论证；争辩；争论→argument n．争论；争吵；论点7．regular adj.定期的；经常的；正常的→regularly adv.经常；定期地8．limit n．限制；极限；界限vt.限制→limited adj.有限的→limitless adj.无限的[语境活用]1．Since the country became independent in 1842, it has played an important role independently.(independent) 2．A person's life is limited but knowledge is limitless.(limit)3．Artificial intelligence has been used in phones, which makes them seem to be intelligent.(intelligent)4．She is a determined girl, so we know that once she has determined to do something, she will make her dream come true with great determination.(determine)5．To my disappointment,_I saw a disappointed expression on his face due to his disappointing testscore.(disappoint)6．He argued against smoking, and insisted that it was beyond argument that smoking was harmful to health.At last, he argued us out of smoking.(argue)(四)背高频单词——先“记牢”再“用活”，不背绝对不行1．determine vt.查明；确定；决定2．disappointed adj.失望的；沮丧的渴望；欲望vt.渴望；期望3．desire n．4．lack n．缺乏；短缺vt.没有；缺乏5．argue vt.& vi.论证；争辩；争论(五)背短语词块——表达出彩，需多积词块才行单元短语再认再现1．carry on继续做，坚持干2．on board 在宇宙飞船上；在船(飞机)上3．in the hope of doing_sth. 抱着……的希望4．so as to (do sth.) 为了；以便5．figure out 弄懂；弄清楚；弄明白6．result in 导致；造成7．as a result 所以；结果(是)8．provide for sb. 提供生活所需9．in closing 最后10．run out 用完；耗尽重点短语拓展用活1．result in导致；造成2．run out用完；耗尽(六)背主题写作——好习作就靠“仿效”和“背诵”议论文：太空探索是否值得？【题目要求】最近，你班同学就“太空探索是否值得”这一话题展开了一场讨论。

河南省高中英语必修三Unit4SpaceExploration知识点总结(超全)单选题1、The jokes told by Tom made us ________, so the teacher couldn’t make himself ________.A．to laugh; hearingB．laugh; heardC．laughing; hearD．laughed; heard答案：B考查非谓语动词。

句意：汤姆讲的笑话让我们笑了起来，所以老师没能让人听清他的话。

分析句子可知，空一作宾语补足语，make是使役动词，接不带to的不定式作宾语补足语，表示“让某人做某事”，空二作宾语补足语，与宾语himself是被动关系，用过去分词表示被动，综上，故选B。

小提示：2、On that fateful day, medical teams swarmed into the city from all directions to help the locals fight the formidable battle at full ________.A．gushB．stretchC．spillD．leap答案：B考查名词。

句意：在那命运攸关的一天，医疗队从四面八方涌入该市，帮助当地人全力抗击这场可怕的战斗。

A.gush涌出；迸出；B.stretch伸开、伸展；C.spill洒出；D.leap跳跃。

根据上句“medical teams swarmed into the city from all directions（医疗队从四面八方涌入这座城市）”可知是帮助当地人全力抗击这场可怕的战斗，at full stretch为固定短语，意为“全力以赴”。

故选B。

3、I am disappointed at hearing the bad news, so I am in no________ today to go to the movies with you. A．mindB．urgeC．moodD．desire答案：C考查名词。

人教版高一英语必修3UNIT4知识点总结UNIT 4 Astronomy: the science of the starsWordssolar system planet circle astronomy origin religionwidely theory universe atoms billion dust solidglobe violent explode carbon vapor nitrogen produce atmosphere appear surface unlike obviousfundamental presence dissolve harmful acids chainreaction extremely multiplied oxygen encourage development shellfish insect amphibians reptiles huge dinosaurs exist rise mammal spread thus dioxide removepuzzle presence chemistry planet gravity evidence satellite violent shocked gentle rude biology provediscovery physicist supply decrease species extinct climate concern disappear spaceship force escape pull lessen float weight painful frightening amazed increase exhausting structure theory situationcrashPhrases:in all directions combine to settle into in time cool down fill....with as well as lay eggs remain a mystery give birth to in one’s turn prevent...from as a result of depend on no longer die out block out crash into dozens of fall back to cheer up twice as far as fall over now that get the hang of step forward break out pay attention to watch out be make up ofbe fundamental to begin with in all directions according to watch out for 密切注意；当心；提防Grammar:1.What it was to become was uncertain until between 4.5 and3.8 billion years ago when the dust settled into a solid. (随后）它变成什么没人知道，知道38~45亿年前，这团尘埃才慢慢地形成一个固体的球状物。

Unit 4 Direction 表示方向常和in,4. in time ①及时in time tofrom 搭配。

从某个方向用from,system 系统，体系朝某方向用in. do/ in time forsolar system 太阳系in all directions 四面八方②最终，迟早。

相当于sooner or government systems 政府体系in the opposite direction 朝相反later ,eventuallyinterest vt. 使⋯感兴趣的方向例如：The woman went to the例如：We were just in time for the常用：Sth. interest Sb. direction from which she flight.= Wewere just in time interested adj. 感兴趣的came.这个女士走向她来的方to catch the plane.interesting adj. 令人感兴趣的向。

Don’t worry. Iamsure thingseg: What he said interested will get better in time.all of us. to do 一般做目的状语，但有时候We are interested in the 辨析：in time/ on time/ at a也可做结果状语，见课本第一段interesting story.最后。

Only to do 结果发现常t ime( 一次，每次)/at one time( 曾经，一度)/ at1. 根据一个普遍接受的理论，times=sometimes( 有时候)表示意料之外的结果。

例如：宇宙起源于一次大爆炸，这She went to the supermarket,次大爆炸把物质射向四面八方。

必修三Unit4 知识点整理B. Expressions1. in time 及时，终于，迟早，最后on time 按时，准时all the time 一直，总是 at times 偶尔，有时at one time 曾经，一度 at a time 每次，一次at no time 在任何时候都不 kill time 消磨时间take one’s time 不着急，慢慢来 in no time 立刻，马上2. violent crime/behavior 暴力犯罪/行为violent storm 暴风雨 do violent to 对…施暴with violence 强烈地，暴力地3. be fundamental to 对…至关重要4. be harmful to = do harm to 对…有害there is no harm in doing sth. 不妨做某事5. multiply v.乘，迅速增加 multiply A by B A乘以B add v.加 plus prep. 加上subtract v.减 minus prep. 减去divide v. 除 times prep. 乘以6. exist in 存在于…中 exist on 靠…为生come to existence/being 形成，出现 be existence 存在7. give birth to 分娩 be of good birth 出身名门8. in one’s turn 轮到 by turns 轮流地in turn 依次，轮流 take turns to do sth. 轮流做某事9. prevent…(from) doing 阻止…做stop sb. (from) doing sth. keep sb. from doing sth.10. be in puzzle 感到困惑puzzle about/over 仔细琢磨11. break up 解散，破碎 break out 突发，爆发break down 出故障 break in 闯入，插话break into 强行进入 break one’s heart使心碎break out of摆脱，逃出 break up into分成，分解12. solid n. “固体”adj. “固体的，坚固的；实心的，纯的，牢靠的，立体的”。

Book 3 Unit 4 知识点1.begin with= start with“以……开始”end with, end up with 以…结束，告终to begin with “首先; 第一; 起初; 最初”.在句中作时间状语.To begin/start with, I couldn’t understand every word.2. violent 猛烈的，激烈的violence n.暴力,猛烈He gave the man a violent blow.3.be to (do):不可避免要发生或必须发生She is to be honoured for this great work.表示按计划、安排要发生的动作When are they to hand in their plan？表命令,必须,同must, have to Tell her she is not to be back late.表应该，同should, ought to You are to report to the police.4. in time 及时The doctor came in time to save her life .迟早;最后You’ ll get used to it in time .【time相关短语】ahead of time 提前take one’s time 不着急，从容不迫in no time 立刻,马上; at times 有时; at a time 每次; once upon a time 从前at one time 曾经; for the time being 暂时; from time to time 不时地5. atmosphere n. 大气层;气氛An atmosphere of tension（紧张）filled the room.6. cool down 变凉, 冷却,平息，冷静7. presence n. 存在,出席,在场In the presence of sb= in sb’ s presence 当着某人的面absence n. 缺席, 不在场absent adj. 缺席的absent-minded 心不在焉be absent from school8. encourage 鼓舞；促进；怂恿encourage sth encourage sb. to do sth. encouraging adj. 令人鼓舞的courage n. 勇气discourage Vt. 使泄气9. exist vi 存在;生存exist on 靠…生存existing adj. 现存的;目前的existence n. 存在come into existence 开始存在; in existence 现存的(作定语）10. n.remain a beginneradj.remain silentremain doing remain standing无被动进行done remain untouchedto be done有待于做(表将来) remain to be foundremains 剩余物,废墟remaining adj. 剩余的11. cannot／can never...too+ adj./adv. “无论怎样……也不会过分”You can’t praise him too highly.12. multiply v. 乘: 增加,繁殖7乘以4等于28. ①4 multiplied by 7 is 28. ②4 and 7 multiply to make 28. 13. according to 根据，依据…而定14. be fundamental to 对…很重要15. allow sb to do sth / allow doing sth 允许某人做某事/ 允许某事16. be harmful to sb/ sth 对…有害17. dissolve sth into sth 把…溶解在…之中18. a chain reaction 连锁反应19. fill sth with sth 用…填充…20. as well as (除了…之外)也…21. for the first time 第一次22. lay eggs 下蛋23. give birth to 分娩24. in one’s turn 轮到某人；接着25. prevent…from 阻止，制止26. depend on 依赖，依靠27. fall from a tree to the ground 从树上摔下到地上28. be far from…远远不，一点也不29. cheer up 感到高兴，感到振奋30. now that 既然… 31.after a while 一会之后32.get the hang of sth 掌握，理解33. break out （疾病、战争、火灾）爆发、突发34. Watch out for… 小心… 35. hang out 闲逛36. give out 分发；发出（光，热…）37. warn (sb) of/about sth 提醒某人某事=remind sb of sth38. warn sb (not)to do 警告某人（不）去做某事39. a new approach to solving the problem/ a new way to solve the problem一个解决这个问题的新方法40. feed A on B 用B喂A 41. go out （灯、火）熄灭put sth out 熄灭…42. go dry 变得干燥43. therefore=thus=accordingly 因此44. react to sth 对…做出反应45.cheer up 使人高兴起来cheer for为…加油,欢呼46. pull n. 拉力,引力Vt. 拉,牵pull apart 把…拉开pull down 拆毁pull in 车到站; 船到岸pull over 车停在路边pull through 渡过难关,危机47. 【倍数表达法】1. 倍数+the+名词+of…(常用词汇size, height, weight, length, width等)2.倍数+形容词或副词比较级+than3. 倍数+as+形容词或副词原级+as…The plane flew ten times the height of the kite.The plane flew nine times higher than the kite.The plane flew ten times as high as the kite.假设你校英语社团正举办以“讲求文明，从我做起”为主题的征文活动，请你以“On the Way to School”为题，写一篇英语短文。

2019-2020学年高中英语人教版必修三Unit 4 Astronomy: the science of the stars1.systemn.系统，体系，制度the solar system太阳系；a railway system 铁路系统；a social system 社会制度；a security system 安保系统a heating system供热系统systematic adj.有系统的；有条理的(1)Too much drinking does harm to the system.(2)The solar system is mainly made up of the sun and the 8 planets.(3)This weekend I’m going to install a home security system.(4)The teacher made a systematic work of teaching.(5)How many of you think the educational system is working?(6)The school offered a systematic course in reading.2.theory n.学说；论说；理论，原理；意见，看法in theory 理论上；原则上Malthusian theory 马尔萨斯学说，马尔萨斯人口论scientific theory科学理论theory of gravity 万有引力理论(1)There are many theories about the origin of life.(2)Your plan sounds fine in theory.(3)She has a theory that drinking milk prevents colds.(4)Not in theory. But in practice?(5)Every boy and girl had a theory (七嘴八舌)about the nature of that book.(6)Many scientists accept the theory that the universe is growing larger.3. in time 及时，终于，迟早on time 准时，按时at a time 一次，每次at one time 曾经；一度；同时at times 有时，偶尔at no time 决不in no time马上；立刻(1)The doctor came in time to save his life.(2)You will realize the mistakes made by you in time.(3)I saved my bacon(save one’s bacon救某人的命) by arriving just in time for the meeting.(4)Although he is a good student, he is late for class at times.(5)You borrowed money; you didn’t return it on time.(6)He checked them off one at a time as they came in.(7)At no time should you give up studying.(8)In no time he will come back.4.atmosphere n.空气；大气层；大气圈;气氛；氛围；环境；atmospheric adj.大气的；大气层的；令人激动的词语辨析：atmosphere 指地球或其他天体的气体或大气层；air指环绕在地球周围并且人和动物能呼吸的空气或大气层。

高一英语必修三unit4知识点Unit 4: A Healthy LifeIntroduction:In the first year of high school, students study a variety of subjects to build a strong foundation for their academic journey. One of the essential subjects is English, which helps students develop their language skills. In this article, we will focus on the key knowledge points of Unit 4 in the English textbook for Grade 10.1. Health and Lifestyle:In this unit, students learn about the importance of maintaining a healthy lifestyle. They explore the factors that contribute to a healthy life, such as balanced nutrition, regular exercise, and adequate rest. Students also study the harmful effects of smoking and excessive alcohol consumption on our well-being.2. Healthy Eating Habits:Unit 4 emphasizes the significance of healthy eating habits. Students learn about the main food groups and their nutritional values. They explore the benefits of consuming a well-balanced diet, which includes fruits, vegetables, grains, dairy products, and protein-richfoods. Furthermore, students are encouraged to limit the intake of processed foods and sugary beverages.3. Physical Fitness and Exercise:Staying physically active is crucial for maintaining good health. In this unit, students are introduced to various types of exercises, such as cardio workouts, strength training, and flexibility exercises. They learn about the positive impacts of exercise on our cardiovascular system, muscle strength, and mental well-being. Additionally, students are encouraged to engage in sports and physical activities regularly.4. Stress Management:Unit 4 also covers the topic of stress and its impact on our health. Students learn about different stressors and develop strategies to cope with stress effectively. They explore relaxation techniques such as deep breathing exercises, meditation, and engaging in hobbies to reduce stress levels. The importance of a good work-life balance is also emphasized.5. Health-Related Vocabulary and Expressions:Throughout Unit 4, students expand their vocabulary and expressions related to health and lifestyle. They learn words andphrases to describe physical and emotional states, common illnesses, symptoms, and treatment methods. Students practice using this vocabulary in various conversation activities and writing assignments to improve their language skills.Conclusion:Unit 4 of the Grade 10 English textbook focuses on promoting a healthy life among students. By learning about nutrition, exercise, stress management, and health-related vocabulary, students can develop habits that will contribute to their overall well-being. By understanding the importance of a healthy lifestyle at a young age, students are better equipped to make informed choices about their health in the future. As they progress in their English language learning journey, students will continue to build upon these essential knowledge points and apply them to their daily lives.。

必修3第4单元重点单词和短语讲解1.solar adj.太阳的，日光的solar system太阳系solar power 太阳能; 太阳能动力Somewomen now can use solarpower instead of gas stoves to boil water and cook food. 现在一些妇女使用太阳能代替煤气炉烧水做饭。

solar atmosphere and solar activities 太阳大气和太阳活动lunar阴历的, 月的lunar calendar阴历2.violent激烈的; 猛烈的; 强烈的；暴力的A shark is a kind of violent fish鲨鱼是一种有攻击性的鱼类.why do French has violent revolutions to bring about change？为什么法国靠暴力革命去寻求改变？1.The boat which was full of petrol sank in a ___ storm at sea.A. violateB. violenceC. violentD. violated选C violent ：激烈的;猛烈的;强烈的意思The boat which was full of petrol sank in a violent storm at sea.柴油充足的船在海上强烈的风暴中沉没了。

violate vt.1. 违犯;违背2. 侵犯;扰乱3. 亵渎;污损violence 是名词，暴力。

violated 是violate 的过去时。

3.explodeexplode: “迅速增长”；“发怒” 爆发；爆炸。

The population of this city has exploded in the last / past few years. 在最近几年里这个城市的人口急剧增加(explode)如果是“someone explodes”则是“发怒”的含义了。

高一英语必修三unit4第四单元知识点词汇部分wildlife /'waildlaif/ n.野生动植物protection /pr?'tek?n/ n.保护wild /waild/ adj.野生的；野的；未开发的；荒凉的habitat /'h?bit?t/n.栖息地（动植物的）自然环境threaten /'θret?n/ vt. & vi.恐吓；威胁decrease /di'kri:s/ vi. & vt.减少；（使）变小；或变少endanger /in'deind??/ vt.危害；使受到危险die out 灭亡；逐渐消失loss /l?s/ n.损失；遗失；丧失reserve /ri'z?:v/ n.保护区hunt /h?nt/ vt. & vi.打猎；猎取；搜寻zone /z?un/ n.地域；地带；地区in peace 和平地；和睦地；安详地in danger (of) 在危险中；垂危species /'spi:?i:z/ n.种类；物种carpet /'kɑ:pit/ n.地毯respond /ri'sp?nd/ vi.回答；响应；做出反应distant /'dist?nt/ adj.远的；远处的fur /f?:/ n.毛皮；毛；软毛antelope /'?ntil?up/ n.羚羊Zimbabwe /zim'ba:bwei/ n．津巴布韦(非洲东南部国家)relief /ri'li:f/ n.（痛苦或忧虑的）减轻或解除；减轻痛苦的事物in relief 如释重负；松了口气laughter /'lɑ:ft?/ n.笑；笑声burst into laughter 突然笑起来；大声笑了出来mercy /'m?:si/ n.仁慈；宽恕；怜悯certain /'s?:tn/ adj.确定的；某一；一定importance /im'p?:t?ns/ n.重要（性）WWF (World Wildlife Fund) 世界野生生物基金会rub /r?b/ vt.擦；摩擦protect … from 保护……不受……（危害）mosquito /m?'ski:t?u/ n.蚊子millipede /'milipi:d/ n．(=millepede)千足虫insect /'insekt/ n.昆虫contain /k?n'tein/ vt.包含；容纳；容忍powerful /'pau?fl/ adj.强大的；有力的affect /?'fekt/ vt.影响；感动；侵袭attention /?'ten?n/ n.注意；关注；注意力pay attention to 注意appreciate /?'pri:?ieit/ vt.鉴赏；感激；意识到succeed /s?k'si:d/ vi.成功vt.接替；继任Indonesia /ind?u'ni: ??;-zi?/ n．印度尼西亚(东南亚岛国) rhino /'rain?u/ n.犀牛secure /si'kju?/ adj.安全的；可靠的income /'i?k?m; 'ink?m/ n.收入employ /im'pl?i/ vt.雇用；利用（时间、精力等）harm /hɑ:m/ n. & vt.损害；危害Milu deer麋鹿bite /bait/ vt. & vi.(bit,bitten) 咬；叮；刺痛extinction /ik'sti?k?n/ n.灭绝；消亡dinosaur /'dain?s?:/ n.恐龙come into being 形成；产生county /'kaunti/ n.县；郡inspect /in'spekt/ vt.检查；视察unexpected /?nik'spektid/ adj.没料到的；意外的incident /'insid?nt/ n.事件；事变dust /d?st/ n.灰尘；尘土；尘埃according to 按照；根据……所说Mauritius /m?'ri??s/ n．毛里求斯(非洲东部岛国) disappearance /dis?'pi?r?ns/ n.消失fierce /fi?s/ adj.凶猛的；猛烈的so that 以致于；结果ending /'endi?/ n.结局；结尾faithfully /'feiθf?li/ adv.忠诚地；忠实地Colobus /'k?l?b?s/ monkey (非洲产)疣猴，髯猴词组部分1. as a result结果As a result of= because of 由于result in = cause导致result form 由于2. die out （动，植物物种）灭绝die o 死于…（多内因）die from死于…（多外因）die dow变弱；逐渐消失 be dying for 渴望得到…3. be at a loss = be puzzled at =be confused迷惑的，不解的suffer a loss (of) 蒙受损失 make up for a loss 弥补损失be lost in one’s thought(陷入沉思) lose heartlose one’s heart to sb4.in peace 平静的（地）；安静的（地）in silence/ in quiet/in surprise/in a hurry5.hunting for搜索; 搜寻6.be in danger of 有… 危险be out of danger脱离危险endangered adj. 濒危的 dangerous 危险的7.have / give an effect on / upon …take effect(生效)come / go into effect 生效；实施8.be concerned about担心.关心，挂念 9. get dressed穿上衣服get done强调动作，不能和表一段时间的状语连用;be done 表状态10.turn round : 转过去，围绕…旋转11.apply to应用be applied to被应用于apply for请求,申请….. apply to sb. for sth.12.protect ……from保护…..免受….危害prevent from阻止（stop/ keep from）13.have aeffect on对...有影响14.with a sad face looking at her. with + 宾语(O) + 宾语补足语/doc/dd5261298.html,e into being: 形成；产生；开始存在come into use：开始被使用come into one’s mind / head: 突然想到come into fashion: 开始流行come into consideration: 开始考虑必背知识点1. If the ir habitat is threatened or they can’t find enough food, their numbers may decrease. 如果他们的栖息地受到威胁或者他们找不到足够的食物，他们的数目就可能减少。

Unit 4 Astronomy: the science of the stars 单元重点预览1. loudly / loud / aloud词语3. remain / leave辨析4.climate / weather1.violent adj.强暴的，剧烈的2. fundamental adj.基本( 础 ) 的 n.[pl.] 基来源则(法例 )3.development n.词生长，发展；新状况汇词部形4. lay vt.放下；陈设；产分变(蛋 )化lay---laid---laid---layi ng5. prevent vt.预防，防备6. gentle adj.平和的；柔和的7. physics n.物理，物理学2.unlike / dislike5.now that / since / because / as violence n.暴力，强violently adv. 强暴暴；剧烈地；剧烈地fundamentally adv. fundament n. 基础；基当地；根当地根本develop vt.developed adj. 发达发展；产生的 developing adj. 发vi. 生长；发展展的lie vi. 躺，平放；lie n.&vi. 谎言；谎话位于lie---lied---lied---lyin lie---lay---lain---lyi gngprevention n.预防；preventable adj可.防阻挡；阻碍止的，可预防的gently adv.平和地；静静地physicist n.physical adj.身体的；物理学家物理 (学)的；物质的1.system n.[c] 系；系统；制度；方法y vt. (laid, laid, laying) 把⋯⋯放下；； (地毯 ) ； (蛋)重 3. harmful adj. 有害的；害的点 4. exist vi. 存在；生计5. puzzle v.(使)诱惑； (使)苦思n.；6.pull v.拉，拖，拔；移 n.拉，拖；拉 (引 )力7.cheer vt.&vi. (使)高、振； ( )呼1.to begin with 以⋯⋯开始；由⋯⋯作开；第一2.in time 及；最；早重 3. in one ’ s turn到某人；接着点 4. prevent...from 使⋯⋯不做事；阻挡⋯⋯做某事5. block out 住（光）6. be off = set off 出；身；不用上班 /学/开7.break out (灾、争等 )突；爆8.watch out 亲密注；当心；防备1. It exploded loudly with fire and rock, which were in time to producethe water vapour, carbon dioxide, oxygen, nitrogen and other gases,重点句which were to make the earth’ s atmosphere.子 2. That made it possible for life to begin to develop.3.But when I tried to step forward I found I was carried twice as far ason the earth and fell over.重点从句和表从句（法部分）法言重点Ⅰ .辨析1. loudly / loud / aloud【解】loudly adv 响亮地，大声地loud adj/adv 与 sing, speak, talk用aloud adv 相默而言；出声【】依据句子的意思在括号里填入适合的。

Unit 4. Sandstorms in Asia一.重点词汇及拓展1.mass adj.大量的；大规模的2．campaign n．战役；活动3．process n．进程；过程4．forecast vt.预报；预告5．recycle v．重新利用；再循环6．evidence n．根据；证明7．urgent adj.紧急的8．chemical n．化学药品→chemistry→n.化学→chemist n．化学家9．environment n．环境→environmental adj环境的10.scary adj.恐怖的；吓人的→scare n．&.v.惊吓→scared adj.恐惧的11．concerned adj.关心的，担心的→concern n．&.vt.涉及；担忧；关注→concerning prep.关于12．complain vt.抱怨→complaint n．埋怨，诉苦13．protection n．保护→protect v．保护→protective adj.保护性的14．major adj.主要的，多数的→majority n．多数15．absolutely adv.绝对地，完全地→absolute adj.绝对的二.重点短语1.cut down砍倒2．dig out挖出3．be caught in遭遇(坏天气)4．take in吸收；理解；欺骗5．prevent /stop...(from) doing阻止……干……6.give out放出；发出7．protect...against...保护……不受……的侵害8．do nothing_ but do sth.只有做……9．in a nutshell简言之，概括地讲10．complain_about/of埋怨；抱怨三.重点句型1.I couldn’t agree with you more.我非常同意你的看法。

高一英语必修三知识点总结：Unit4Unit 4 Astronomy: the science of the stars1.be fundamental to… 对……是基本的，必需的This is fundamental to a true understanding of the book. 这对真正理解这本书十分重要。

2. in sb’s presence 当着某人的面，有某人在场She asked them not to discuss the matter in her presence. 她要求他们不要当着她的面讨论这个问题。

3. be harmful to… 对……有害的= do harm to…The air here is harmful to our health. 这里的空气对我们有害。

4. There is no harm in doing sth. 不妨做某事= It does no harm to do sth.He may not be able to help but there’s no harm in asking him.他可能帮不了忙，但是求他一下倒也无妨。

5. exist on… 靠……生存= live on…They exist on very little food. 他们靠极少的食物生存。

6. exist in… 存在于……中Several people believe the Devil exists in the world. 少数人认为世界上存在恶魔。

7. in a puzzle 不知如何是好，很迷惑I am in a puzzle about what he said. 我对他说的话迷惑不解。

8. in time 1)迟早;最后= sooner or later; eventually 2)及时;不迟= not lateYou’ll learn how to do it in time. 你早晚能学会做这件事的。

高中英语必修三第四单元知识点总结高中英语必修三第四单元知识点总结第四单元 1）solid 作名词，表示“固体”。

作形容词，表示“固体的，坚固的；实心的，纯的，牢靠的，立体的”。

be in solid with sb受某人的重视，与某人关系很好。

feel solid about sth对某事心里有底。

2）explode 表示“爆炸，（感情）迸发，迅速增加”。

explode with/into sth冲动，激动。

3）surface 作形容词，表示“表面的，水面的”。

作名词，表示“水面，表面，外表”。

on the surface在表面上，在外表上。

作动词，表示“加表层，重新出现，睡醒”。

4）dissolve 表示“溶解，融化，分解”。

表示“解散，解除，消除”。

5）multiply 表示“乘”，multiplyA by B表示“A 乘以B”。

表示“繁殖，增加”。

6）generally 表示“一般地，通常地”，可以放在谓语动词之前或者系动词之后。

generally speaking表示“一般来说，总的来说”常放在句首作状语。

7）spread 表示“伸展，展开，传播”。

spread…with… 把……铺在……上，把……涂在……上。

spread…on… 在……涂抹……。

spread oneself伸展四肢仰卧，夸夸其谈。

spread one’s net布下落网。

8）prevent 是动词，后面可以直接跟宾语。

prevent…from…阻止，制止。

from可以省略。

9）depend depend on/upon依靠，依赖，取决于。

it（all）depends，that depends表示“看情况而定”，单独使用，或用于句首。

10）exist 表示“生存，存在”。

exist in 存在于……中。

exist on，exist by都表示“靠……生活”。

但exist o后的宾语通常指食物，收入，薪金。