北師大版（2019）高中英語必修第二冊 Unit 4《Information+Technology+高頻單詞知識精講》課件

這是一份北師大版（2019）高中英語必修第二冊 Unit 4《Information+Technology+高頻單詞知識精講》課件，共36頁。
Unit 4 高頻單詞精講北師大版（2019）高中英語必修第二冊 1 | convenience n.方便;便利;便利的事物　　provide convenience/education/information提供便利/教育/信息?詞匯情景導學For convenience, I keep my table lamp near my bed when I am sleeping.為方便起見,我睡覺時把我的臺燈放在床邊。Please give me an answer at your convenience.請在你方便時給我回復。?用法歸納①　????sb.’s convenience在某人方便時;在某人適宜的地點②　????(the sake of) convenience為方便起見atfor高頻詞匯①convenient adj.方便的;附近的be convenient for sb.對某人來說是方便的It is/was convenient (for sb.) to do sth.做某事(對某人來說)很方便?I’ll visit you next weekend if it is convenient for you.如果你方便的話,我下周末就去看望你。②conveniently adv.方便地?Their jaws were not conveniently structured.他們的下顎構造不方便(發(fā)音)。③inconvenience n.不便④inconvenient adj.不方便的詞匯拓展 2 | effect n.效應;影響;效力,作用　　Effects/Impacts效應/影響?(教材P6)詞匯情景導學Some ancient laws are still in effect now.有些古老的法律現(xiàn)在仍然有效。They must finish the work before the new tax rates come into effect.在新稅率生效前,他們必須完成工作。These new laws should be brought/put into effect as soon as possible.這些新法律應該盡快實行。The successful signing of RCEP will have a positive long-term effect on the development of China.《區(qū)域全面經濟伙伴關系協(xié)定》的成功簽署將對中國的發(fā)展產生長期的積極影響。　?????情景導學用法歸納①have an effect 　????...對……有影響/起作用②　???? effect有效;在實施中;實際上③come 　???? effect生效;開始實施④bring/put...　???? effect使……生效;實行/實施……oninintointo詞匯拓展①effective adj.有效的;起作用的;實際的?The measures were effective.這些措施是有效的。②effectively adv.有效地;實際上用法歸納 3 | addicted adj.對……著迷的;上癮的;沉迷的　　makes us self-focused/live in an unreal world/addicted to it使我們以自我為中心/活在不真實的世界里/對它著迷?(教材P6)詞匯情景導學He was addicted to playing computer games and he didn’t see the person who came into his room.他沉迷于玩電腦游戲,沒有看見進他房間的人。用法歸納be/become addicted 　????(doing)...對(做)……上癮;沉迷于(做)……to情景導學詞匯拓展①addict n.對……入迷的人;吸毒成癮的人a work addict工作狂②addiction n.入迷;嗜好;癮(an/one’s) addiction to...(一種/某人)對……的嗜好/癮?You should fight your addiction to alcohol.你應該戒除酒癮。③addictive adj.使人上癮的?The boy is seriously addicted to video games and he finds them very addictive, thus turning into a video game addict.這個男孩嚴重沉迷于電子游戲,他發(fā)現(xiàn)電子游戲讓人非常上癮,因此成了電子游戲迷。詞匯拓展情景助記 入迷的← addicted →上癮的情景助記 4 | recommendation n.建議,提議;推薦　　Do you have any recommendation?你有什么推薦嗎? ?(教材P100)詞匯情景導學If I had to make just one recommendation for where to stay in Rome, it would be Yellow Hos-tel.如果非得讓我推薦一個在羅馬住的地方,那會是Yellow Hostel。?用法歸納①make a/one recommendation (to sb.) 　????...就……(向某人)提建議②on the recommendation of...根據……的建議③a letter of recommendation 介紹信;推薦信for特別提醒recommendation表示“建議”時后可跟同位語從句,從句中的謂語動詞常用“(should+)動詞原形”形式。情景導學recommend v.推薦,介紹;勸告,建議recommend sb. as/for...推薦某人為/做……recommend sth. to sb.向某人推薦某物recommend doing sth.建議做某事recommend sb. to do sth.建議某人做某事recommend that...=It is recommended that...建議……[從句中的謂語動詞用“(should+)動詞原形”形式]?Experts recommend exercising at least three times a week, but only 28% of students manage it.專家建議每周至少鍛煉三次,但只有28%的學生能做到。?It is highly recommended that you write your own original compositions, which will help de-velop your identity in music.強烈建議你寫你自己的原創(chuàng)作品,這將有助于培養(yǎng)你在音樂中的身份。(人教必修二)詞匯拓展 5 | admit vi.& vt.承認 vt.準許……進入(或加入)　　Well, I admit it.是的,我承認。?(教材P100)詞匯情景導學He admitted cheating/having cheated in the exam. However, the teacher didn’t blame him.他承認考試作弊了。然而,老師沒有責備他。I had to admit (that) moving so often made me feel lonely.我不得不承認,經常搬家讓我感到孤獨。Can’t they admit that the preparations for the dinner are hard work?難道他們不承認晚餐的準備工作很辛苦嗎??(外研必修二)One day I got word that he was admitted to hospital for a serious disease.有一天我得到消息說他因得重病而住進了醫(yī)院。?(讀后續(xù)寫—情節(jié)描寫)情景導學用法歸納①admit 　 ????/having done sth.承認做過某事②admit to (doing) sth.承認(做)某事③admit (　 ????)...承認…… ④be admitted 　 ????...被允許進入/加入……;被接收入院doingthatto詞匯拓展admission n.準許進入;承認;入場費?It’s said that history is written by the victors, and those victors set the standards for admis-sion to the genius club.據說歷史是由勝利者書寫的,那些勝利者為天才俱樂部制定了準入標準。?用法歸納 6 | variety n.多樣化,變化;不同種類;品種　　Yet, very few people knew that future avatars would have such a wide variety of forms and uses.然而,很少有人知道未來的虛擬形象會有如此多種多樣的形式和用途。?(教材P9)詞匯情景導學Students in Shenzhen University can take part in a variety of sports clubs on campus.深圳大學的學生在校園內可以參加各種各樣的體育俱樂部。William Shakespeare is known as one of the greatest writers in English literature, whose many plays appeal to a variety of readers to this day.威廉·莎士比亞被認為是英國文學中最偉大的作家之一,他的許多戲劇至今仍吸引著各種各樣的讀者。用法歸納a variety 　 ????...各種各樣的……of情景導學詞匯拓展①various adj.各種不同的,各種各樣的?The area provides an ideal habitat and plenty of food for various species of birds, such as blackbirds.該地區(qū)為各種鳥類,如黑鳥,提供了理想的棲息地和充足的食物。②vary v.變化;不同vary from...to...從……到……變化?The weather varied from very cold to quite mild.天氣從非常寒冷變得相當暖和了。③varied adj.各種各樣的,形形色色的詞匯拓展 7 | selection n.供選擇的同類物品;選擇;被挑選的人(或物)　　In most web chats, people choose an avatar from a selection of ready-made images,or cre-ate their own images.在大多數(shù)網絡聊天中,人們從各種現(xiàn)成的圖像中選擇一個頭像,或者創(chuàng)建他們自己的圖像。?(教材P9)詞匯情景導學Students should make a selection from a range of reference materials.學生應該從多種參考資料中作出選擇。Do you know anything about the selection procedure for astronauts?你知道宇航員的選拔程序嗎?It seemed like the perfect chance for natural selection to act on a population.這似乎是自然選擇對一個種群發(fā)揮作用的完美機會。?情景導學用法歸納①　 ???? a selection作出選擇②a selection of...選出的一些……③natural selection自然選擇;物競天擇④the selection procedure選拔程序make詞匯拓展select vt.挑選;選擇select sb. to do sth.挑選某人做某事select...as...選擇……作為……select...from...從……中挑選……?Simon has been selected to attend the conference.西蒙被選中參加此次會議。?York was selected as the site for the research centre.約克被選為研究中心的所在地。用法歸納 8 | concern n.擔憂,憂慮;重要的事情 vt.使擔心;關心;從事;與……有關;涉及　　The use of avatars has also caused a few concerns.頭像的使用也引起了一些擔心。?(教材P9)詞匯情景導學Andrew expressed his concern about/for violence on TV.安德魯表示了他對電視上的暴力(內容)的擔心。 I don’t concern myself with unimportant details.我不關心不重要的細節(jié)。用法歸納?①concern 　 ????...對……的憂慮/擔心?②concern oneself 　 ????...關心……;從事/忙于……about/forwith情景導學詞匯拓展①concerned adj.關心的,關切的;有關的;擔憂的be concerned about/for...為……擔憂/憂慮be concerned about/with...關注……;關心……be concerned with...與……有關;涉及……as far as...is concerned就……而言?Write a letter to the WWF asking them for help to save one of the endangered animals you are most concerned about.給世界自然基金會寫信,請求他們幫助拯救你最關心的瀕危動物之一。?(寫作—保護動物)?As far as I’m concerned, riding bicycles is a good solution.就我而言,騎自行車是一個很好的解決辦法。詞匯拓展②concerning prep.關于?What does the last paragraph mainly talk about concerning emotional intelligence?最后一段主要講的是關于情商的什么?? 9 | powerful adj.效能高的;強有力的;強壯的;有影響力的　　to become powerful變得效能高?(教材P12)詞匯詞匯拓展①power n.能力;力量,能量;影響力;權力 vt.驅動,為……提供動力in one’s power在某人的能力范圍內beyond one’s power超出某人的能力范圍be in power執(zhí)政,掌權come to power上臺;執(zhí)政;掌權have the power to do sth.有能力做某事?The new government will come to power next month.新政府將在下個月執(zhí)政。?Humans have the power to solve the problems confronting them.人類有能力解決他們所面臨的問題。②powerless adj.無權的;無能為力的 10 | deliver vt.& vi.遞送;傳送 vt.發(fā)表(演說等);生孩子;接生　　...Ms Smith, your order was delivered last week.……史密斯女士,你的訂單上周就送到了。?(教材P102)詞匯用法歸納①deliver sth. 　 ???? sb./sp.遞送某物給某人/到某處②deliver a speech/lecture發(fā)表演講③be delivered 　 ???? a baby分娩;生孩子④deliver a baby接生toof詞匯拓展delivery n.投遞;遞送;分娩;演講方式用法歸納 11 | harm vt.& n.傷害,損害　　The Internet Harms Friendships互聯(lián)網傷害友誼?(教材P15)詞匯情景導學Spending too much time online does harm to people’s health.花費太多時間上網對人們的健康有害。?(寫作—網絡的影響)It does no harm to ask before we go there.在我們去那里之前,問一問也無妨。If you want to solve the problem in this way, there is no harm in calling him.如果你想以這種方式來解決問題,不妨給他打個電話。用法歸納①do/cause harm 　 ????...對……造成傷害②it does no harm (for sb.) 　 ???? sth./there is no harm in (sb.’s) 　 ???? sth.(某人)不妨做某事toto dodoing情景導學詞匯拓展①harmful adj.有害的,導致?lián)p害的be harmful to...對……有害?Indeed, the smartphone can bring great convenience to our life. However, it can be harmful to our eyes.的確,智能手機可以給我們的生活帶來很大的便利。然而,它對我們的眼睛可能是有害的。 ②harmless adj.無害的;無惡意的?Moreover, the use of advanced solar technology ensures that it is harmless to the environ-ment.此外,先進的太陽能技術的使用確保了它對環(huán)境無害。詞匯拓展 12 | concentrate v.專注,專心;集中(注意力);(使)集中于　　...communicating through a screen makes it more difficult for children to concentrate or show kindness to others.……通過屏幕交流讓孩子們更難集中注意力或對他人表現(xiàn)出善意。?(教材P15)詞匯情景導學From then on, I began to concentrate on every small thing in my study.從那時起,我開始專注于我學習中的每一件小事。?(寫作—學習)I decided to concentrate all my efforts on finishing the meal for my mum.我決定集中所有的精力為媽媽完成這頓飯。用法歸納①concentrate (sth.) 　 ???? sth./doing sth.集中注意力/精力等在(做)某事上;致力于(做)某事②be concentrated in...集中于……on詞匯拓展①concentration n.集中;專心;關注;濃度?Ocean colour varies from green to blue, depending on the type and concentration of phyto-plankton.海洋顏色從綠色到藍色不等,取決于浮游植物的類型和濃度。?②concentrated adj.集中的;濃縮的;全力以赴的?They reflect a concentrated beam of light onto the town’s central square.它們將一道集中的光束反射到城鎮(zhèn)的中心廣場上?！?????用法歸納 13 | focus v.集中(注意力);關注;(使)聚焦;(使)調節(jié)焦距 n.焦點;焦距;中心點　　In my opinion, friends should focus more on face-to-face communication, and less on on-line communication.在我看來,朋友應該更多地關注面對面的交流,而較少關注網上的交流。?(教材P15)詞匯用法歸納?①focus (...) 　 ????...集中(……)于……?②　 ???? focus對準焦點,對焦;(圖像)清晰 ③　 ???? focus對焦不準;(圖像)模糊on/uponinout of 14 | amazing adj.了不起的;驚人的　　In my opinion, the author did an amazing job of creating a whole new world through this book.在我看來,作者做了一件了不起的事情——通過這本書創(chuàng)造了一個全新的世界。?(教材P18)詞匯詞匯拓展①amaze vt.使驚訝②amazed adj.大為驚奇的be amazed at/by...對……感到吃驚be amazed to see/find...驚奇地看見/發(fā)現(xiàn)……?The teacher was amazed at/by the boy’s strong comprehension.老師對這個男孩的強大的領悟能力感到驚訝。詞匯拓展③amazement n.驚奇,驚詫in amazement驚訝地to one’s amazement令某人驚訝的是?To my amazement, without saying a word, he suddenly ran out of the office.令我驚訝的是,他一句話也沒說,突然從辦公室跑了出去。?易混辨析易混辨析 15 | accessible adj.易懂的;易得到的;可到達的;可接近的;可使用的;可進入的　　It also makes the art accessible to the world while protecting the original artworks for the future.在為未來保護原始藝術品的同時,它也讓世界了解藝術。?(教材P21)詞匯情景導學Medicine should not be kept where it is accessible to children.藥品不應放在兒童容易拿到的地方。用法歸納be accessible 　 ????...對……來說易于得到/接近/進入/理解的to情景導學詞匯拓展access n.通道;機會access to...去……的通道;……的機會have/gain/get access to...擁有……的機會/權利;可以獲得/接近……?The only access to the country cottage is across the fields.去那個鄉(xiāng)村小屋的唯一通路是穿過田野。?Across the world, 1.1 billion people have/get/gain no access to clean drinking water.全世界有11億人無法獲取干凈的飲用水。?(寫作—保護水資源)詞匯拓展高頻詞匯積累詞匯積累課程結束