Book 1Unit 11.add up 合計If you add 5 to 5, you get 10.=Add 5 to 5 and you will get 10.=5 added to 5 is 10. 把加到上面The balloons added to the festival atmosphere.增加His whole school education added up to no more than one year. 加起來總計達Add up all the numbers, and you will get 1000. 加【訓練】用適當的介詞填空： The engine of the ship was out of order and the bad weather added _ the helplessness of the crew at sea. The numbers add _ 95.2. ignore vt. 不理睬；忽視 （-s, -d, ignoring）He ignored my advice. 他忽視我的忠告。The driver ignored the traffic light. 那個司機不理會紅綠燈。ignorance n. 無知 ignorant a. 無知的3. upset a.心煩意亂的；不安的；不適的 vt. 使不安；使心煩（upset, upset）His strange behavior upset his father. 他的奇怪行為困擾著他的父親。I was really upset by the news. 那個消息使我煩透了。4. calm sb.down （使）平靜下來；（使）鎮(zhèn)定下來He calmed his friends down. 他使朋友平靜下來。calm （-er, -est）The sea was very calm. 海面很平靜。 a calm day /afternoon 平靜的日子/下午Stay/Keep calm! 冷靜點!She got frightened and excited, but is much calmer now. 她受驚嚇而顯得激動，但現在平靜多了。After a storm comes a calm. 雨過天晴。calm (vt.&adj.) calmly (adv.)-calmness (n. 安靜；冷靜)5. have got to 不得不；必須（同 must, have to ）Youve got to do what the doctor told you (to).你必須按照醫(yī)生所吩咐的去做。Have we got to get up early tomorrow? 我們明天必須早起床嗎？6.concern vt. (使) 擔憂；涉及；關系到 n. 擔心；關注； （利害）關系That doesnt concern me. =Its none of my business. =Its no concern of mine. 與我無關。She concerns herself about her sons future.=She is concerned about her sons future.她擔憂著他兒子的將來。7. as far as be concerned 就而言As far as I am concerned , I cannot support your idea. 就我個人而言， 我不支持你的觀點。I have no concern with the company. 我和該公司沒有任何關系。I feel no concern about the matter. 我不擔心這件事。She showed a great deal of concern for her sons illness. 她非常擔心她兒子的病情。7. go through 經歷； 經受The poor girl has gone through such a lot since her parents died. 那個可憐的女孩自從父母過世后經歷了很多苦難。對查看一遍She went through the room but couldnt find the missing ring. 她搜遍了整個房間還是找不到失落的戒指。Cf. get through 讀完；寫完 How long does it take you to get through a letter?你寫一封信要花多少時間？get through to sb. 打電話找到某人8. set down 記下；放下；登記I set down everything (that happened then.)我記下那時發(fā)生的每一件事。9. a series of 一連串的；一系列；一套There has been a series of car accidents at the crossing. (謂語動詞使用單數)在那個交叉路口曾經發(fā)生一連串的車禍。10. outdoors adv. 在戶外；在野外 （反 indoors）Children usually prefer playing outdoors. 孩子通常比較喜歡在戶外玩耍。Cf. outdoor adj. 反 indoor an outdoor game /sport 戶外活動11.on purpose 故意=by design 反義：by chance/by accidentShe lost the key on purpose.她故意遺失鑰匙。12. in order to 為了They did anything in order to make money.為了賺錢他們什么都做。Cf.(對比) in order to do 可放于句首 so as to do 不可放于句首in order to do 與 in order thatThey did anything in order that they could make money. 為了賺錢他們什么都做。13. at dusk 在黃昏時刻14. face to face 面對面地 with sb.He came face to face with death.他面臨死亡。face-to-face adj. 面對面的 have a face-to-face argument 面對面地辯論【拓展】 back to back hand in hand heart to heart 坦誠地 shoulder to shoulderarm in arm side by side15.no longer/notany longer 不再He no longer lives here.=He doesnt live here any longer.他不再這兒住了。16. settle vi. 安家；定居；停留 vt. 使定居；安排；解決They got married and settled in Jinan.他們結了婚并定居在濟南。He settled down in his hometown. 他在故鄉(xiāng)安頓下來。17. suffer vt.&vi.遭受；忍受；經歷（-s, -ed, -ing）The city suffered serious damage from the earthquake.那個城市因地震而遭到嚴重破壞。He is suffering from a bad cold.他正患感冒。suffer from +具體事物18. recover vi.&vt. 痊愈；恢復；重新獲得 （-s, -ed, -ing）He recovered from a cold. 他感冒痊愈。 recover vt.&vi.-recovery n.19. get/be tired of 對厭煩Im tired of eggs. He was tired of answering his sons questions.他厭倦了回答兒子的問題。tired adj. tiredly ad. tiredness n. tireless adj.20. pack vi.&vt. 捆扎；包裝；打行李 n. 小包；包裹Have you packed all your things? 你所有的東西都包好了嗎？pack sth. up 將裝箱打包21.get along with 與相處；進展How are you getting along with your classmates?你與同學相處如何？How are you getting along with your work? 你的工作進展如何？22. fall in love with sb. 相愛；愛上23. disagree vi. 不同意 （-s, -d, -ing）She disagreed with me on that point. 在哪一點上她和我的觀點不同。The climate here disagrees with me. 這兒的氣候不適合我。24. join in 參加；加入May I join in your conversation? 我可以加入你們的談話嗎？Join with sb. in doing 和某人一起做My wife joins with me in sending our best regards to you.我和我的妻子向你問候。Unit 21. because of 因為；由于I was late because of the rain.因為下雨，我遲到了。Cf. because & because of I went to bed early because I was tired.because +狀語從句 because of +名詞，代詞，動名詞，賓語從句cf. because , as , since, for 一般是表示各種理由的連詞，但because 多表示所敘述的理由是本句的重點， 故because 所引導的從句常放在句末。-Why am I leaving? -Im leaving because I want to .as, since 用于表示理由是已知， 而理由以外才是敘述的重點， 兩者皆多用于句首， 但要注意：since 重形式， as 多表示理由以外的才是重點。As it is raining, lets stay at home. 重點在lets stay at home。Since you have no license, you are not allowed to drive. for 不用于句首, 放后面補充說明理由；主句表推測時， 用for 說明原因。Ill follow his advice, for he is a doctor. 我會聽從他的建議，因為他是醫(yī)生。2. come up 走近；上來；提出The sun has come up. 太陽升起來了。Cf.（對比） come up with (不可用被動)（1）追上；趕上（2）想出；找出（答案，計劃）Youve come up with a good idea.你想出來的主意好極了。3. actually ad.實際上；事實上He looked calm, but actually he was very nervous.他看起來雖然很鎮(zhèn)定， 但實際上卻很緊張。Did you actually see the accident? 你真的看到那次意外事故了嗎？4. base vt. 以為依據（bases, based, basing）You should base your conclusion upon careful research.你應該把你的結論建立在審慎的研究的基礎之上。This story is based on facts.這個故事基于事實。5. at present 現在；目前 （=now）Im free at present. 我現在有空。6. make use of 利用；使用You should make the best use of this chance.你應該充分利用這次機會。He made use of his free time to learn English. 他利用閑暇時間學英語。將句變成被動（2種）_ _7. such as 例如,像這種的I visited several cities such as New York, Chicago, and Boston.我去過幾個城市，如紐約，芝加哥和波士頓。I dont like such books as he likes. 我不喜歡他喜歡的書。8. command n. &vt. 命令；指令；掌握（-s, -ed, -ing）command sb. to do 命令某人做The policeman commanded him to stop.警察命令他停下來。I was commanded by my father to study harder.父親訓令我努力用功。command that 命令The teacher commanded that he (should ) go out of the classroom. (虛擬語氣)=The teacher commanded him to go out of the classroom.老師命令他離開教室。9. request n. &vt. 請求；要求（-s, -ed, -ing ）request sb. to do 請求某人做May I request you to stop talking? 能不能請你不要再講了？request that 請求一事I requested that he (should )come an hour earlier.我請他早一個小時來。注意：command, request 的賓語從句需用虛擬語氣。should +動詞原形，should 可省略。10. play a part in 扮演一個角色；參與He played a leading part in the movement. 他在那次運動中擔任領導角色。=play a role in 11. recognize vt. 辨認出；承認；公認（-s, -d, recognizing）I recognized my old friend at once.我立刻認出了我的老朋友。They recognized him to be a great leader.他們承認他是一位偉大的領袖。He didnt recognize that he had made a big mistake.他不承認犯下了大錯。Cf.(對比) realize v. 領悟；認識到形容詞用法Suddenly he realized what was happening.突然間他覺察到發(fā)生什么事了。12. straight adv.直接；挺直adj. 直的；筆直的；正直的（-er, -est） a straight line 直線 She has straight hair.她是直發(fā)。副詞用法Please be straight with me. 請?zhí)拐\對待我。Give me a straight answer.請?zhí)孤驶卮稹he road goes straight across the desert.那條道路筆直穿過沙漠。Keep straight on .一直往前走。Unit 31.transport n. 運送；運輸 vt.運輸；運送 (-s, -ed, -ing)The yellow bus transports passengers from the airport to the city. 那輛黃色公共汽車把乘客從機場運到城里。The goods were transported by plane.那些物品是用飛機運輸的。2.prefer vt. 更喜歡；選擇某事物（而不選擇其他事物）（-s,preferred, preferring）prefer A to B 喜歡AHe prefers fish to meat.他比較喜歡魚而不喜歡肉。prefer doing to doingI would prefer playing outdoors to watching television.我寧愿在外面玩而不愿看電視。prefer to do rather than do 寧愿 而不愿I prefer to go to the movies rather than stay home.=I prefer going to the movies to staying home.我寧愿去看電影而不愿待在家里。I would prefer not to go out today. 我今天寧愿不出去。3.ever since 從那以后一直（更加強調since的用法）He got a job with the firm in 1970 and has worked there ever since.他1970年在那家公司任職，爾后就一直在那里工作。4.persuade vt.說服；勸說（-s,-d,persuading）persuade sb. to do = persuade sb. into doingpersuade sb.not to do = persuade sb.out of doingShe finally persuaded her son to go to college.她終于說服他兒子上大學。= She finally persuaded her son into going to college.We persuaded him out of his foolish plan.我們勸他停止他的愚蠢計劃。5.graduate vi. 畢業(yè) n. 大學畢業(yè)生（-s, -d,gratuating）They graduated from high school last year. 他們去年高中畢業(yè)。He graduated in law from Yale. 他畢業(yè)于耶魯大學法律系。a graduate of Harvard=a Harvard graduate 哈佛大學畢業(yè)生6.finally ad. 最后；終于（at last, at the end, eventually）The car wouldnt start, so finally we decided to go on foot.車子不能發(fā)動，所以我們終于決定走著去。7.schedule n. 時間表；進度表 vt. 為某事安排時間a work schedule 工作預定表 a class schedule 課程表 a television schedule 電視節(jié)目表 a train schedule 火車時刻表 according to schedule 據預定計劃 ahead of schedule 較預定時間提前 behind schedule _ on schedule 按照預定時間I have a full schedule for tomorrow. 我明天已經排滿了。He is scheduled to visit the USA next year. 他預定明年訪問美國。8.be fond of 喜愛；喜歡She is fond of cats/music.她喜歡貓/音樂。I am fond of playing the piano.我喜歡彈鋼琴。9.organize vt. 組織；成立organize a party 組織政黨organized a. 有組織的 organization n. 組織；組織化10.care about 關心；憂慮；惦念I dont care about what hell say. 我不在乎他說什么。care for 喜歡 （用于否定句，疑問句，不用被動語態(tài)）I dont care for baseball. 我不喜歡棒球。Would you care for a cup of tea? 你要不要來杯茶？care for 照顧，照料 She cares for her sick mother. 她照顧她生病的母親。11. change ones mind改變主意bear/keep sth. in mind記在心里 Please bear these rules in minds. 請記住這些規(guī)則。12. journey n. 旅行；旅程 a long train journey 長途火車旅行 journal n. 日志 keep a journal 記日志（通常比日記較多用于正式記錄） a monthly journal 月刊The Great Wall is a days journey by car from here. 從這里到長城要一天的車程。區(qū)分（cf）：journey, trip, voyage,tourjourney 常指長途陸路直接到達目的地的旅行（長途陸路）go on /make a journeytrip 通常指短程的觀光旅行（短途短期）go on/ make a trip to sp.voyage 航海；太空旅行 go on /make a voyage to sp.tour 指為考察，觀光等巡回各地的旅行 go on /make a tour of 13. make up ones mind 下決心；決定He made up his mind to be a doctor.聯想：be determined to do下定決心去做 determine to do 決心做 decide to do 決定做14.give in 投降；屈服；讓步The mother gave in and bought a toy for her child.拗不過孩子的要求，母親買了玩具給他。He has given in to my views.他順從了我的意見。區(qū)分：give up 放棄 I could give up sweets. 我能戒掉甜食。 give out 分發(fā)；（食物，燃料，力量等）用盡The runner gave out in the middle of the race. 那位賽跑選手跑到一半就筋疲力盡了。15.attitude n. 態(tài)度；看法He took a friendly attitude to /toward us. 他對我們采取友善的態(tài)度。What is your attitude to this plan? 對于這個計劃， 你有什么意見？16. as usual 照常 He works hard as usual. 他照常辛勤工作。區(qū)分：than usual 較平常（用于比較級之后）This morning she got up earlier than usual.今天早晨她比平常起得早。17.reliable a. 可信賴的；可靠的（more-, most-）反：unreliablea reliable friend 可信賴的朋友 a reliable product 品質可靠的產品Is the source of the information reliable? 那個消息的來源可靠嗎？18.at midnight 在半夜Unit 41. right away 立刻；馬上 SYN right now,at once, immediately, instantly2.burst vi. (burst, burst) 爆裂；爆發(fā) n. 突然破裂；爆發(fā)He burst into the room.他突然闖入房間。 He burst out of the room.他突然沖出房間。She burst into laughter.=She burst out laughing. 她突然大笑。She burst into tears. =She burst out crying. 她突然大哭。3. as if 仿佛；好像=as thoughShe always talks to me as if she were my sister. 她總是以我妹妹的語氣和我說話。He treats me as if I were a stranger. 他待我猶如陌生人。4. at an end 結束；終結5. ruin n. （常用復數形式）廢墟；毀滅 vt. 毀滅；使破產Heavy smoking ruined his health.吸煙過量毀壞了他的健康。The crops were ruined by the flood.農作物遭洪水毀壞。in ruins 嚴重受損；破敗不堪6.injure vt. 損害；傷害（-s,-d, injuring）He was badly injured in the accident.他在那意外事件中受了傷。injured a. 受傷的；負傷的區(qū)分：wound , hurt, harmhurt 身體疼痛；感情受傷Be careful not to hurt yourself.=Be careful not to get hurt.小心不要受傷了。My injured leg still hurts. 我受傷的腿一直疼。He hurt his feelings. 他傷了她的感情。wound多指作戰(zhàn)等所受的刀、槍、劍、棍等傷害。The soldier was badly wounded in the head. 那位士兵頭部受重傷。harm （物質上或精神上的）潛在的傷害。Smoking will do you a lot of harm.I harmed my eyes by reading in dim light. 我在昏暗的光線下閱讀傷害了眼睛。7.destroy vt. 破壞；毀壞；消滅 （-s, -ed, -ing）The fire destroyed the whole forest.這場火災毀壞了整個森林。All the hopes were destroyed. 所有的希望完全破滅。8.shock vt.&vi. （使）震驚；震動 n.休克；打擊；震驚那個消息使她震驚。The news shocked her. She was shocked at the news. She was shocked to hear the news. The news was a great shock to us. 那個消息給我們很大的震撼。9.rescue n. &vt. 援救；營救(-s, -d, rescuing) rescue sb. from sp.（某地）The firemen rescued a boy from the burning house.消防隊員從著火的房子里就出一個孩子。10.trap vt. 使陷入困境（-s,trapped, trapping） n. 陷阱；困境He fell into a trap. He was caught in a trap. 他中了圈套。He trapped animals and sold their furs. 他設陷阱捕捉動物并出售毛皮。trap sb. into doing 誘騙某人做11.dig out 掘出；發(fā)現（-s, dug, dug, digging）12.bury vt. 埋葬；掩埋；隱藏（buries, buried, burying）The dog buried the bone in the ground. 那只狗把骨頭埋在地下。The paper was buried under a pile of books. 那份文件被埋在書堆下。She buried her face in her hands. 她雙手蒙著臉。be buried in =bury oneself in 埋頭于， 專心于13. a (great) number of 許多；大量的 the number of 的數量A number of books are bought every day.The number of books which are bought every day is more than 100.Unit 51. quality n. 質量；品質；性質 區(qū)分：quantity n. 量For study, quality is more important than quantity. 就學習而言，質比量重要。2. active a. 積極的；活躍的（more-, most-） 反義：inactiveHe is not as active as he was. 他不像以前那么活躍。an active child 活躍的孩子 an active writer 活躍的作家3.devote vt. (與to連用)現身；專心于（-s, -d, devoting）He devoted his life to promoting world peace.他一生致力于促進世界和平。She devoted herself to tennis.她熱衷于網球。devoted a. 忠實的；深愛的 a devoted friend 忠實的朋友4.out of work 失業(yè) 反義： in workHe is out of work now. 他現在正失業(yè)。5.vote vt.&vi. 投票；選舉 n. 投票；選票；表決A vote on this matter will be taken at the end of the discussion. 這件事討論到最后就舉行表決。Now we will vote on this question. 現在對這個問題來投票表決。vote for/against 投票贊成/反對They voted for /against the measure. 他們對那項議案投了贊成票/反對票。vote to do 投票去做6.attack vt. 進攻；攻擊；抨擊We attacked the enemy at dawn. 我們在黎明時襲擊敵人。The enemy was attacked at dawn.make an attack on the enemy 攻擊敵人7.as a matter of fact 事實上 in fact , actuallyAs a matter of fact, she was responsible for the accident. 實際上，她應對這次事故負責。8.equal a. 相等的；平等的It is reasonable to demand equal pay for equal work. 要求同工同酬是合理的。Tom is equal to John in height. 湯姆和約翰身高相同。He is equal to carrying out the plan. 他能夠實行那項計劃。 be equal to 能勝任的9.in trouble 在危險、受罰、痛苦、憂慮等的處境中She is in great trouble, so she needs your advice. 她遭到很大的困難，所以需要你的忠告。聯系：have trouble in doing sth.做有困難 take the trouble to do 不辭勞苦地做10.turn to 求助于；致力于 I turned to him for advice. 我請求他給我忠告。 Please turn to page 20. 翻到第20頁。11.lose heart 喪失勇氣或信心（loses, lost, lost, losing）12.escape vi.逃脫；逃走；泄露（-s, -d, escaping）The bird escaped from the cage. 那只鳥逃出鳥籠。They escaped from /out of a burning building. 他們從著火的建筑物中逃出。He escaped punishment.= He escaped being punished. 他逃過懲罰（免于懲罰）13.educate vt. 教育；訓練（-s, -d, educating）Its a difficult task to educate children. 教育孩子是件困難的事。She was educated at Shandong University. 她曾在山大就學。The child was educated to think clearly. 那個孩子被訓練能夠思考周密。an educated person 受過教育的人14.come to power 當權；上臺 （表動作）； in power 當權的 （表狀態(tài)）15.beg vi. 請求；祈求 （-s, begged , begging ）The man begged for money from passers-by. 那男人向過路人要錢。He lived by begging . 他靠乞討為生。I beg a favor of you . 我懇求你幫忙。He begged his boss for a day off. 他請求老板給他一天假。beg sb. to do 懇求某人做16.reward n. 報酬；獎金 vt. 酬勞；獎賞He was given a medal as a reward for his service. 他因為有功而獲頒一枚獎章。I will reward you later. 我以后在答謝你。How can I reward your kindness? 我如何才能報答你的善意呢？His effort was rewarded with success. 他的辛勤努力換來了成功。was rewarded with 被報償區(qū)分： award vt. 授予；頒發(fā)(-s, -ed, -ing)award sb. sth. =award sth. to sb. 授予某人某物The judges awarded the frist prize to her .評委們把頭獎授予她。17. set up 設立；建立A new government was set up after the civil war. 新政府在內戰(zhàn)之后成立了。18.be sentenced to (to 介詞) 被判處(徒刑)He was sentenced to death. 他被判處死刑。19. opinion n. 意見；看法；主張Whats the opinion of the new president? 你對新總統的看法如何？Public opinion has changed 輿論改變了。In ones opinion 據某人的意見In my opinion, he is wrong. Book 2Unit 11. survive vi. 幸免；幸存；生還（-s, -d, surviving）Only one baby survived the terrible car crash. 在那次可怕的撞車事故中只有一個嬰兒生還。Few houses have survived the storm.暴風雨后殘留下來的房屋寥寥無幾。survivor n. 幸存者2.in search of 尋找He settled in Jinan in search of a better life.為了尋求新生活，他定居在濟南。3.select vt. 挑選；選擇（-s, -ed, -ing）He selected one of his favorite books and read to his children.他選了一本心愛的書念給他的孩子們聽。They selected him to make a speech at the opening ceremony. 他們推選他在開幕式上致辭。selected a. 被挑選出來的；精選的4.design n. 設計；圖案；構思 vt. 設計；計劃；構思 （-s, -ed, -ing）a design for a dress 衣服的設計 a design for a building 畫建筑物的設計圖She designs dresses for the singer. 她為這位歌手設計服裝。This house is designed for a large family. 這個房子適合大家庭。打算做用5.fancy adj. 奇特的；異樣的 vt. 想象；設想；愛好(fancies, fancied, fancying)I had a fancy that he would do something unusual. 我總覺得他會做出不尋常的事來。I found a house to my fancy. 我找到一棟合自己心意的房子。to ones fancy 合（某人的）心意I cant fancy him as (to be) an English teacher. 我無法想象他教英語會是什么樣子。Fancy George reading such difficult books! 真想不到喬治會看那么難的書！Fancy his reading such difficult books!I fancy that I have met her somewhere.我覺得好像在什么地方見過她。（相當于suppose）6.decorate v. 裝飾；裝修（-s, -d, decorating ）She decorated her room with flowers.她用鮮花裝飾她的房子。Her room is decorated with flowers.How much will it cost to decorate the house?裝修這間房子要花多少錢？其名詞：decoration7.belong vi. 屬于；為的一員（-s, -ed, -ing）(不用進行時和被動語態(tài))The car belongs to mine. 這輛車是我的。Who does this bag belong to ? 這個提包是誰的？I belong to the club. 我屬于這個俱樂部。I feel that I dont belong here. 我覺得在此格格不入。其名詞：belongings (個人的)所有物，財產8. in return 作為報答；回報 +forIf you give me your book, Ill give you mine in return.你若送我書， 我將回贈一本給你。He didnt expect anything in return for his help. 他幫助人并不期待任何回報。return ticket 回程票 return trip=round trip 往返旅行9. at war 出于交戰(zhàn)狀態(tài) +withAt that time our country was at war with Japan. 那時我國正和日本作戰(zhàn)。10.remove vt. 移動；搬動（-s, -d, removing）+fromRemove your books from the desk. 把你的書從桌子上拿走。Remove your books from here to there.The player was removed from the team. 那個球員被開除了。11.less than 少于He works less than he used to . 他不像以前那樣努力工作。We have less snow this year than usual. 今年雪比往年少。no less than 簡直It is no less than robbery to ask for so much. 要求那么多，簡直跟搶劫沒兩樣。不比差(暗含兩者都好)A dolphin is no less a clever animal than a dog is. 海豚與狗同樣都是聰明的動物。12. doubt n. 懷疑；疑惑 vt. 懷疑；不信（-s, -ed, -ing）There is some doubt whether對于某事是否持有疑問There is no doubt that毫無疑問There is some doubt whether he is the best man for the job. 他是不是擔任那項工作的最合適人選，有點疑問。There is no doubt that he is the best man for the job. 他是擔任那項工作的最合適人選，毫無疑問。I have some doubt whether我對是否存在疑問I have no doubt that 我對.無疑問I have no doubt that he will pass the examination.我確信他會通過考試。no/without/beyond/out of doubt 毫無疑問 in doubt 不確定的I doubt if /whether 懷疑是否I dont doubt that 我不懷疑I doubt if /whether he will keep his word. 我懷疑他是否會遵守諾言。I dont doubt that our team will win. 我隊會獲勝是沒有疑問的。13.worth prep. 值得的；相當于的價值 n. 價值；作用 區(qū)分：worthy, worthwhileThe book is worth reading.=The book is worthy to be read. =The book is worthy of being read. =It is worthwhile to read the book. =It is worthwhile reading the book. 這本書值得讀。The book is worth 20 yuan. 這本書價值20元。14.take apart 拆開Take the machine apart. 把機器拆開。apart from 除了.之外Apart from a few faults, he is a trustworthy student. 除了兩三個缺點外， 他是一個值得信賴的學生。15. explode vi. 爆炸（-s, -ed, exploding）The time bomb exploded but nobody was injured. 定時炸彈爆炸了， 但沒有人受傷。其名詞：explosion 爆炸16.sink vi. (sank, sunk;sunk, sunken) 下沉；沉下Several ships sank in the storm. 在那次暴風雨中有幾艘船沉沒了。The moon was sinking behind the mountains. 月亮正往群山背后下沉。17. think highly of 看重；器重（thought, thought）I dont think highly of him because he is an lier. 我對他評價不高，因為他說謊。Unit 21.compete vi. 比賽；競爭 （-s, -d, competing） +for/against/with/inThe two teams compete for the championship. 那兩支隊伍要爭奪冠軍。Hes going to compete against/with his old friend in the second round. 第2回合時他將與老友競爭。compete against/with 對抗Will you compete in the race?你會參加賽跑嗎？in 后加項目其名詞：competition 競爭 competitor 競爭者2.take part in 參加；參與 與attend, join, join in 區(qū)別take part in 參加活動