新教材高中英语 Unit 2 Looking into the Future Reading and Thinking课件 新人教版必修1.ppt
Ⅰ. 文本整体理解: 理清文章架构
Ⅱ. 文本细节理解: 探寻语篇细节信息 1. What’s the main idea of the text? A. Smart home will focus on people’s health issues. B. Smart home is a new but controversial technology. C. Smart home will make our life easier in many ways. D. Smart home will make human beings lazy.
(2)In the future, what will smart homes do besides what you have learnt in the text? Share your ideas: _H__o_u_se_h_o_l_d__ro_b__o_ts_w__il_l_b_e__co_n__n_e_ct_e_d__w_i_th__t_h_e_h_o_m__e _s_y_s_te_m__,_a_n__d_d_o__w_h_a_t_e_v_e_r_w__e_c_o_m_m__a_n_d_._
11. voice _c_o_m__m_a_n_d__s (指令) 12. forget their_w_a_r_n_i_n_g_ (警告) 13. one _p_o_t_e_n_t_ia_l (潜在的)weakness 14. _d_e_t_e_c_t (发现)problems 15. all _a_v_a_il_a_b_le_ (可获得的)resources
2. 课文概要填空 In the near future, the (1) _sm__a_r_t_h_o_m__e_s(智能住
宅) with new technology will solve many daily problems for us. We will be using (2)_a_d_v_a_n__ce_d_ (先 进的)technology every day for automatic control of everything. All controls will (3) _r_e_s_p_o_n_d_t_o_(反应) our voice commands and prepare everything for us
2. When you live in a smart home, ______. A. you will be warned early on if you have a deadly illness B. you have to change your daily routine according to the command of the home system C. you will not be forgetful any longer D. you will be protected from any disasters
according to our (4)_d_a_i_ly_(日常) routine. In the meantime, regular health (5)_c_h_e_c_k_s(检查) will be monitoring our health every day and give us a warning (6) __ea_r_l_y_o_n__(早期)if there is something abnormal, which (7)_p_o_t_e_n_t_ia_l_ly_(潜在地; 可能地) save our lives. In addition, by (8)_d_e_te_c_t_in_g_(发 现)abnormal signs in our homes, smart homes will
5. _re_m__o_t_e(远程的) controls 6. _a_u_t_o_m_a_t_i_c(自动的)control 7. an _i_n_t_eg_r_a_t_e_d(综合的)application 8. daily _r_o_u_t_in_e_ (常规) 9. personal _p_r_e_f_e_re_n_c_e_ (爱好) 10._i_n_s_ta_n_t_ (立即的)message
provide us with the relevant information, so we will be able to fix the problem in time. Many of these new (9)_in_n_o_v_a_t_i_o_n_s(创新)are already (10)_a_v_a_il_a_b_l_e(可使用 的) and being used in some homes, and most new homes will begin to use this new technology in the not-toodistant future.
C. The home of today is as perfect as the home of tomorrow. D. The new technology that will be brought to use in most homes in the near future is already being used in some homes.
Unit 2 Looking into the Future Reading and Thinking
【单词认知】 Ⅰ. 单词拼写 1. _i_d_e_n_ti_f_y(证明) oneself 2. _p_e_r_su__a_d_e(说服)her to do it 3. _s_w_i_tc_h__o_f_f (关闭) the TV 4. keep us _s_e_cu__re_ (安全的)
【词块积累】 (1)persuade sb. to do sth. /into doing sth.
说服某人做某事 persuade sb. not to do sth. /out of doing sth.
说服某人不要做某事 persuade sb. of sth. /that. . . 使某人相信…… try to persuade sb. to do sth. 试图劝说某人做某事(不
*Can you persuade her out of her foolish plans? 你能劝她放弃那些愚蠢的计划吗? *Eventually, her mother persuaded her into learning English. 最终, 她妈妈说服了她学习英语。
*It didn’t take much persuasion to get her to tell us where he was. 我们没费什么口舌就让她说出了他的下落。 *His arguments in favour of a new school are very persuasive. 他赞成办一所新学校的理由很有说服力。
Байду номын сангаас
Ⅱ. 根据语境和汉语提示选择合适的短语填空 in this sense, provide. . . with, lead to, no longer, keep track of, prevent. . . from. . . , in addition 1. Too much work and too little rest often _l_ea_d__s _to_(导致) illness. 2. He suffered from poor eyesight and could _n_o__lo_n_g_e_r_(不再) read properly.
译文: 然而, _在__不__久__的__将__来__, 我们将住在智能住宅里, 当我们不在的时候, 它会为我们锁门, 当我们忘记关掉 电视的时候, 它会记得关掉。
译文: __你__一__进__家__门_, 你家的灯就会打开, 同时还会播 放你最喜欢的音乐和电视节目; 并且你会发现晚餐已 经为你备好。
5. Where is the text likely to be taken from?
A. A science magazine
B. A research report
C. A health magazine
D. A book review
答案: 1～5. CABDA
Ⅲ. 文本素养提升: 阅读技能综合运用 1. 根据课文语境与语句知识细致解构语句
3. What does the word“short” in the 4th paragraph
mean?
A.短
B. 短路
C. 短缺
D. 短处
4. What does the author mean by saying “the home of tomorrow is already the home of today”? A. Most homes have been equipped with this new technology. B. Many new innovations are being used in most homes.
3. 阅读主题活动 Talk about the following questions in pairs, and find out the best answers.
(1)What do you think of smart homes? _O_n__t_h_e_o_n_e__h_a_n_d_,__th_e_y__a_r_e_s_e_cu__re_,__c_o_m_f_o_r_t_a_b_le_,__a_n_d_ _e_n_e_r_g_y_s_a_v_in__g_. _O__n_t_h_e_o_t_h_e_r_h_a_n__d_, _t_h_e_y_m__a_y__b_e_t_o_o_ _c_o_m_p_l_i_ca_t_e_d__fo_r__th_e__o_ld__a_n_d__e_x_p_o_se__u_s_t_o_t_h_e__ri_s_k_o_f_ _le_t_t_in_g__o_u_t_o_u_r_p__ri_v_a_c_y_. _
新教材高中英语UNIT2LOOKINGINTOTHEFUTURE泛读技能初养成学案新人教版选择性
UNIT 2 LOOKING INTO THE FUTURE阅读教材P20课文，选择最佳答案。
1．Why did many people oppose driverless cars?A．Because they think new technology is unnecessary.B．Because they think driverless mode is dangerous.C．Because they are the families of the deceased.D．Because the company didn't apologise for the accident.2. What can we learn about the Amish?A．They live happily in the absence of new technology.B．They would like to live in large and polluted cities.C．They are proud of owning cars and using the Internet.D．They want to follow the lives of the rich and famous.3. What makes finding opportunities in life much easier?A．A driverless car in the city.B．The absence of new technology.C．The weathertracking programme.D．The Internet.4. What is the last paragraph mainly about?A．The writer's benefits from new technology.B.The importance of technological advances.C．The social media network.D．The scary side of change.[答案] 1－4 BADAWords and Phrases知识要点1combine vt.& vi.(使)结合；混合(教材P16)Care will also be taken to combine the building and surrounding architecture together to form an effective system.也要小心地将这些大楼和周围的建筑结合起来，形成一个有效的系统。
高中英语选择性必修一UNIT2 LOOKING INTO THE FUTURE
选择性必修第一册 UNIT 2 LOOKING INTO THE FUTURE 高考总复习·英语(RJ)(教师用书)
选择性必修第一册 UNIT 2 LOOKING INTO THE FUTURE
14._f_a_n_ta_s_y_ n. 幻想；想象
something that is _r_e_la_t_e_d_(relate) to
15.__a_v_a_il_a_b_le___ adj. 可获得的；可购得的；nature.
(人)有空的
高考总复习·英语(RJ)(教师用书)
选择性必修第一册 UNIT 2 LOOKING INTO THE FUTURE
核 词
vt. 命令；控制
(obey) my parents.
识 心 10._o_b_e_y__ vi.& vt. 服从；遵守
5.I can't say that I have any particular
记 拼
单 11._w_a_r_n_in_g_ n. 警告；警示；先兆 词 12._c_o_n_st_a_n_t adj. 不断的；重复的；不变的
4._c_o_m__b_in_e_ vt.& vi.(使)结合；混合→ little boy trapped in the fire, he held
_c_o_m__b_in_a_t_io_n__n．结合；混合 5.__p_re_d_i_c_t vt.预测；预言；预料→
him and escaped from the room _i_n_s_ta_n_t_ly___.(instant)
新教材2023版高中英语Unit2LookingintotheFutureSectionⅠReadi
⑦air conditioner/kən'dIʃənə(r)/空调机；空调设备 ⑧automatic/ˌɔːtə'mætIk/adj.自动的 automatically adv.自动地 ⑨integrated/'IntIɡreItId/adj.各部分密切协调的；综合的 integrate/'IntIɡreIt/vi.& vt.(使)合并；成为一体 ⑩sensor/'sensə(r)/n.传感器；敏感元件 ⑪efficient/I'fIʃnt/adj.效率高的；有功效的 ⑫mode/məʊd/n.模式；方式；风格 ⑬routine/ruː'tiːn/n.常规；正常顺序 adj.常规的；日常的 daily routine日常生活 ⑭preference/'prefrəns/n.爱好；偏爱 prefer v．偏爱 ⑮instant/'Instənt/n.瞬间；片刻 adj.立即的；速食的；速溶的 instantly adv.立刻， 马上
[原文呈现]
SMART HOMES TO MAKE LIFE EASIER Have you ever forgotten to lock the door of your house？Or, have you ever forgotten to switch① off the TV or computer？These kinds of things
2．Match each paragraph with its topic sentence.
Para.1 __E__
A ． Smart homes will check people's health
regularly.
UNIT2 Looking into the Future高二英语(人教版2019选择性必修第一册)
A. To sell integrated sensors.
B. To change the old houses.
C. To decorate home with smart technology.
D. To give us an insight into smart homes.
3. What do you think is the audience ? People who are interested in smart homes.
选择性必修 一 Unit 2 Looking into the Future
Reading and Thinking
学习目标
1.通过文本语言分析，梳理文体及描写方法，了解说明文的结构 及要点 2.通过不同阅读策略的应用，梳理大意及细节信息。 3.通过阅读科技与生活的文章，获取现代科技发展对人类生活的 积极影响。 4.通过小组合作，对科技对未来的影响展开思考并有效表达。
Activity 3Work in groups. Discuss these questions.
1. In what way is the home of tomorrow already the home of today?
2. What might be some of the disadvantages of smart homes?
While-reading
Skimming
Match each paragraph with its topic sentence.
Para.1
A．Smart homes will check people’s health regularly.
Para.2
Unit 2 Looking into the Future重点单词(教学课件)-高中英语
1.他关了电视，因为他不喜欢这个电视节目。 2.从这个 意义上说，儿童和成人享有平等的权利。 3.买咖啡和 面包是我日常生活的一部分。 4.不可否认，一台好的 空调可以战胜炎热。 5.他伸手去拿遥控器，按下了 “播放”键。 6.他很早就受伤了，没能坚持到比赛结 束。
7.干草和树木很容易着火。 8.凡事都有两面性，人工智能也不例外。 9.我的一些同学赞成带手机上学，因为他们可以与父母保持联系。 10.孩子们的来来去去很难跟踪。 11.请把空调调到节能模式。 12.在 童年没有父母陪伴的情况下，这些孩子会缺乏自信。
②The beach is within walking _d_i_st_a_n_c_e_ (distant) of my house.
完成句子 ③The noise of explosion could be heard _in__th_e__d_is_t_a_n_c_e(在远处).
核心单词
switch vt.转换；交换 vi. & vt.(使)改变；转变 n．开关；转换器；改变
词性转换
1. persuade v. → persuasive adj. 有说服力的→persuasion n. 说服 2. distant adj.遥远的；远处的；疏远的；心不在焉的→distance n．距离 →distantly adv. 遥远地3. secure adj.安全的；安心的；可靠的；牢固的 vt. 获得；拴牢；保护→security n．安全；可靠→insecure adj. 不安全的 →securely adv. 牢固地，安全地4. remote adj. 远程的，偏远的→remotely adv. 远程地，偏僻地→remoteness n. 偏僻，远古5. automatic adj.自动的 →automatically adv.无意识的；自动地→automation n. 自动化，自动操作 6. integrate vi.& vt.(使)合并；成为一体→integrated adj.各部分密切协调的； 综合的→integration n. 综合，整合，融合7. efficient adj.效率高的；有功效 的→efficiently adv.效率高地；有功效地→efficiency n．效率，效能
2021_2022学年新教材高中英语Unit2LookingintotheFutureUsingLa
3. It has also made finding opportunities in life much easier, _a_s_i_t _a_ll_o_w_s__p_e_o_p_le__to_ _m_a_k__e_l_a_rg_e_r__n_e_tw__o_r_k_s_o_f_f_r_ie_n_d_s_(因为它允许人们结交更多的朋友) through using social media. 4. My healthy monitor, _w_h__ic_h__I_w_e_a_r__a_ll_t_h_e_t_i_m_e_(我一直戴着), has also helped me get into the best shape of my life. 5. Of course, when new technology changes _th_e__w_a_y__w_e_l_i_v_e(我们生活的方式), it can be a scary prospect.
译文: 该报社报道称, _该__汽__车__公__司__已__经__为__这__起__事__故__道__歉__, 但死者家属表示这还不 够。
课文概要填空 A passenger died when car crashed in driverless mode. This accident made
3. a wide variety of _a_r_ti_f_ic_i_a_l flower
各种各样的人造花
4. _p_r_e_d_ic_t_ the entire situation
预测整个形势
5. weather _fo_r_e_c_a_s_t
天气预报
6. _o_p_p_o_s_e the idea
Unit 2 Looking into the Future Using Language
2021_2022学年新教材高中英语Unit2LookingintotheFutureReading
Unit 2 Looking into the FutureReading and Thinking词汇知识·自主学习Ⅰ. 根据语境写出正确的单词1. persuade my classmates into accepting my idea说服我的同学们承受我的主意2. in the not-too-distant future在不久的未来3. keep us secure保障我们的安全4. remote controls for our TVs遥控我们的电视5. automatic control 自动控制6. an energy-efficient mode 节能模式7. daily routine and preference 日常安排和喜好8. the instant you enter the door你一进门9. send a warning to your phone向你的手机发送警告10. keep constant track of your health持续追踪你的健康状况11. have a critical illness 有重大疾病12. provide you with the relevant information为你提供相关的信息13. new innovations 新变革14. available on the Internet网上可以买到的15. electrical wires电线16. the structure of the building 建筑结构Ⅱ. 根据语境用恰当的介、副词填空1. According to airline rules, we suggest you switch off your mobile phone before boarding.2. Different attitudes lead to different courses of life.3. It is very important to learn to get along with our parents.4. Don’t respond to any s requesting personal information, no matter how official they are.5. In addition, health education plays a key role in improving people’s health.6. We can benefit a lot from playing ping-pong, which can prevent us from getting short-sighted.7. “Tom, don’t be afraid of speaking in public. You are no longer a small boy. 〞said Mum.8. One day a few years ago a very funny thing happened to a neighbour of mine.9. Early on, I had a meeting with him to explain our position.10. In this sense, education and health are a sisterhood.Ⅲ. 根据课文与汉语提示补全句子1. In the future, we will be using advanced technology (将利用先进技术) every day for automatic control of just about everything in our home.2. The future home will use integrated sensors(将会使用集成传感器) to tell when you leave home each morning, and then go into an energy-efficient mode all by itself.3. It will also give you suggestions on a healthier diet and how to sleep better (如何睡得更好).4. Nevertheless, it will take some years before most new homes begin to use this new technology(在多数新家开始使用这项新技术之前).根据给出的构词规如此写出如下单词1. 名词后缀“-ing〞表示“状态〞warn v. 警告→warning n. 警告wire v. 装电线→wiring n. 电线线路learn v. 学习→learning n. 学问fill v. 填充→filling n. 填料feel v. 感觉→feeling n. 感情2. 形容词后缀-al表示“有关……的〞electric n. 电→electrical adj. 电的, 用电的nation n. 国家→national adj. 国家的tradition n. 传统→traditional adj. 传统的environment n. 环境→environmental adj. 环境的profession n. 专业→professional adj. 专业的阅读精析·合作学习Task 1 框架宏观建构: 整体理解1. Skim the passage and fill in the blanks.2. What is the text type of the passage?A. News report.B. Film review.C. Science fiction.D. Expository writing.答案: D【寻技巧·提能力】根据文章的内容判断目标读者如果文章是关于语言学习的建议的, 那么目标读者应是语言学习爱好者; 如果文章是关于如何饲养宠物的, 那么目标读者应是宠物爱好者; 如果文章是关于科技的, 那么目标读者应是科技爱好者。
新人教版选择性必修第一册Unit2 looking into the future词汇表
新人教版选择性必修第一册Unit2 looking into the future词汇表1.phrase n.短语;词组2.persuade vt.劝说;说服3.switch vt.转换;交换vi＆vt.(使)改变;转变n.开关;转换器;改变4.switch off/on关/开(电灯、机器等)5.distant adj.遥远的;远处的;疏远的;心不在焉的6.secure adj安全的;安心的;可靠的;牢固的vt.获得;拴牢;保护7.knob n.旋钮;球形把手8.appliance n.电器;器具9.remote a.远程的;偏远的10.remote control遥控器;遥控11.air conditioner空调机;空调设备12.automatic adj.自动的13.integrated adj.各部分密切协调的;综合的14.integrate vi.＆vt.使)合并;成为一体15.sensor n.传感器;敏感元件16.efficient adj.效率高的;有功效的17.mode n.模式;方式;风格18.routine n.常规;正常顺序adj.常规的;日常的19.daily routine日常生活20.preference n.爱好;偏爱21.instant n.瞬间;片刻adj.立即的;速食的;速溶的mand n.指令;命令;控制vt.命令;控制23.obey vi.＆vt.服从;遵守24.warning n.警告;警示;先兆25.constant adj.不断的;重复的;不变的n.常数;常量26.early on在初期;早先27.abnormal adj.不正常的;反常的28.critical adj.严重的;关键的;批判性的29.cancer n.癌;癌症;毒瘤30.potentially adv.潜在地;可能地31.potential adj.可能的;潜在的n.潜力;可能性32.leak vi＆vt.漏;渗漏;透露n.漏洞;裂缝;透露33.electrical adj.电的;用电的34.wiring n.电线线路;线路系统35.wire n.电线;金属丝(或线).接通电源;将…连接到36.detec t vt.发现;查明37.relevant adj.有关的;有意义的38.catch fire着火39.fantasy n.幻想;想象40.innovation n.创新;创造41.available adj.可获得的;可购得的;人)有空的42.in this sense (in…sense)从这种(某种)意义上来讲43.nevertheless adj.尽管如此;不过;然而44.structure n.结构;体系.系统安排;精心组织45.security n.保护描施;安全工作46.crime n.犯罪活动;不法行为bine vt.vi.(使)结合;混合48.nanobot n.纳米机器人49.artificial adj.人工的;人造的;假的50.artificial intelligence(UA)人工智能51.clone vt.克隆;以无性繁殖技术复制n.克隆动物(或植物)52.predict vt.预测;预言;预料53.prediction n.预测;预54.forecast v t.n.预测;预报55.occupation n.职业;占领56.oppose vt.反对;抵制;阻挠57.hence adv.因此;由此58.cease vi.＆vt.(使)停止;终止59.deceased adj.已死的;亡故的60.absence n.不存在;缺乏;缺席61.rural adj.乡村的;农村的62.advocate n.提倡;支持;拥护n.提倡者;支持者;拥护者63.emphasis n.强调;重视;重要性64.luxury n.奢华65.keep in touch (with.) (与…)保持联系;了解(某课题或领域的情况)66.career n.职业;事业67.prospec t n.可能性;前景68.resist vi.＆vt.抵制;反抗;抵挡69.resistance n.抵制;反对;抗拒70.paragraph n.段;段落71.signpost n.路标72.essay n.文章73.accurate adj精确的;准确的74.librarian n.图书管理员;图书馆馆长75.Melbourne 墨尔本(澳大利亚城市)76.Christian n.基督教徒aj.基督教的77.the Amish n.阿曼门诺派。
2019人教版选修一Unit 2 Looking into the Future短语英汉互译表
51
发送;派遣;放出
52
漏油
53
出发;引起;动身;使爆炸
54
挂出;闲逛
55
去观光
56
花时间做某事。
57
为…道歉
58
一方面…另一方面…
59
缺乏,无…时
60
在遥远的未来
61
甚至可以说
62
而不是;宁可…也不愿
63
(与…)保持联络
64
即使;虽然
65
在…的对面
66
允许某人做某事
67
获益颇多
68
技术进步
69
看待
70
在没有相关证据的情况下
71
对…作出准确的预测
72
我完全同意
73
强调;把重点放在
74
写一篇关于…的文章
75
你觉得（做）某事怎么样
76
允许某人做某事
77
找一份高薪的工作
78
有幸/难得能享受…的机会
79
削减;砍倒
80
代替
81
由…制成
82
放心
83
总而言之
英译汉
Unit 2 Looking into the Future
18
integrated sensors
19
energy-efficient mode
20
all by oneself
21
no longer
22
on and off
23
daily routine and preferences
24
be ready for
25
come on
人教版新教材选择性必修一单词表Unit2 Looking into the Future
（人教版新教材）选择性必修一单词表Unit 2 Looking into the Future1. phrase n. 短语;词组a set phrase 固定短语2. persuade vt. 劝说;说服persuade sb to do sth=persuade sb into doing sthpersuade sb not to do sth=persuade sb out of doing sthI persuaded him of the truth.=I persuaded him that it was true.I am persuaded of his innocence.=I am persuaded that he is innocent.try to persuade sb to do sth 试图说服某人做某事persuasion n. 说服；说服力persuasive adj. 有说服力的3 switch vt.转换;交换vi＆vt.(使)改变;转变n.开关;转换器;改变4. switch off/on 关/开(电灯、机器等)switch on the light switch 打开点灯开关switch over 转换；调台switch (from)…to… （从……）转换到……5. distant adj. 遥远的;远处的;疏远的;心不在焉的distance n.in the distance 在远处at/from a distance 稍远处；隔一段距离at a distance of+数字隔….距离keep sb at a distance 对某人冷淡；与某人疏远6. secure adj 安全的;安心的;可靠的;牢固的vt.获得;拴牢;保护secure sth against/from… 保护某物免遭secure a contract 争取到一份合同secure the border 保卫边境secure your rights 确保你的权利feel secure 感到安全的a secure job/income 稳定的工作/收入securely adv. 牢靠地；安全地security n. 安全工作a sense of security 安全感security guards 保安7. knob n. 旋钮;球形把手8. appliance n. 电器;器具9. remote a. 远程的;偏远的in the remote past/future 在遥远的过去/将来be remote from… 偏离……a remote chance 一线希望10. remote control 遥控器;遥控11. air conditioner 空调机;空调设备12. automatic adj. 自动的automatically adv. 自动地13. integrated adj. 各部分密切协调的;综合的14. integrate vi.＆vt.使)合并;成为一体integrate (sth/sb) into/with sth 使（某物）与某物成为一体；使（某人）融入15. sensor n. 传感器;敏感元件16. efficient adj. 效率高的;有功效的近义词effective adj. 有效的efficiently adv. 效率高地efficiency n. 效率；效能17. mode n. 模式;方式;风格energy-efficient mode 节能模式18. routine n. 常规;正常顺序adj.常规的;日常的break/follow the routine 打破/遵守常规a routine check/task/operation 常规检查/任务/操作19. daily routine 日常生活20. preference n. 爱好; 偏爱preferring preferred1) have a preference for 更喜欢……Many people expressed a strong preference for the original plan.2)give (a) preference to sb/sth 给….以优惠或优待Preference should be given to graduates of this university.3) in preference to 优先于；而不是She was chosen in preference to her sister.4）by/for preference 最好；首先21. instant n. 瞬间;片刻adj.立即的;速食的;速溶的instantly adv. 马上；立刻adj. The show was an instant success. instant coffee / noodlesn. in an instant 马上；立刻for an instant 一瞬间At the very instant, the door opened.the instant (that)… 一……就……I recognized her the instant I saw her.相同用法的还有：the moment/the minute/the second/the timeOn doing …; as soon as; hardly…when…; no sooner… than… ; immediately; directly instance n. 实例；例子for instance 举例22. command n. 指令;命令;控制vt.命令;控制obey commands 服从命令in command of 掌握；控制at one’s command 听某人的吩咐get command of 掌握under one’s command 在某人的控制下have a good command of 熟练掌握；精通command sb. to do sth. 命令某人做某事command that clause (should do)commanding adj. 指挥的；威严的；居领先位置的commander n. 指挥官23. obey vi.＆vt.服从;遵守24. warning n. 警告;警示;先兆a word of warning 提醒一句early-warning 预先警报without any warning 没有任何警告give a warning to 给予警告warn v. 警告；警示warn sb of sth 警告某人当心某事warn sb against doing sth/not to sth 警告某人不要做某事25. constant adj. 不断的;重复的;不变的n.常数;常量26. early on 在初期;早先27. abnormal adj. 不正常的;反常的反义词：normal adj. 正常的It’s abnormal for sb to do sth. 某人做某事是不正常的。