O 　　1. object n. 物品，賓語(yǔ) v. 不同意 everyday objects 日常物品 　　her object in life=aim 目標(biāo) object to n./doing… 反對(duì);不同意 　　Many local people objected to building the new airport. objective adj. 客觀的 　　2. ◎ observe v.觀察，監(jiān)視，觀測(cè) 　　observe sb do sth觀察某人做某事; observe sb doing sth 觀察某人在做某事 　　observe sth done 觀察某事被做 observed Christmas Day/one’s birthday 慶祝… 　　observe the law 遵守… 　　3. ●obtain vt/vi 獲得;得到;存在 1).obtain advice/information/permission 　　2).These customs no longer obtain. 　　4. ◎ occupy v.居住;占有，占用(時(shí)，空);占領(lǐng) 　　The house is occupied. …有人住 The bathroom is occupied. …有人用 　　The dinner occupied 2 hours. Many anxieties occupied his mind. 　　occupy oneself with sth/in doing sth忙于某事 　　5. ●occur vi (occurred, occurred) - happen發(fā)生 　　1).When exactly did the accident occur? 　　2). Sth occurred to/hit/struck sb. 出現(xiàn)在頭腦中，被想到 The idea occurred to him in a dream. 　　3).It occurred to me that I had left my keys in the room. It didn’t occur to her to ask for help. 　　6. offer n./v. 主動(dòng)提議 He offered 5000 dollars for the car. 出價(jià) 　　offer sb. sth./sth. to sb. 主動(dòng)給 offer to do… 提出做 　　supply sb. with sth./supply sth. to sb. provide sb. with sth./provide sth. for sb. 　　Thanks for your kind offer of help. 　　7. office n. 辦公室，辦公樓 officer n. 警官，軍官 　　office building/block 辦公大樓 hold office 占據(jù)要職 　　in office/out of office 任職/離職 The present government took office in 1997. 開(kāi)始執(zhí)政 　　8. official adj. 官方的，正式的 n. 高級(jí)官員 　　the official language 官方語(yǔ)言 an official affair 公務(wù) 　　9. once adv. 一次 conj. 一旦 all at once=suddenly 突然 at once 立即，同時(shí) 　　(just) for once/just this once 一次 　　Once bitten, twice shy. 一朝被蛇咬，十年怕井繩。 once more=once again 再一次 　　once upon a time 從前，很久以前 (every) once in a while 偶爾，間或 　　10. one one by one 逐個(gè)的 one after another 一個(gè)接一個(gè) one another 相互 　　11. oneself of oneself 自動(dòng)地 for oneself 親自 (all) by oneself 獨(dú)自 　　talk to oneself=think aloud 自言自語(yǔ) enjoy oneself 玩得開(kāi)心 　　I am not myself today. 身體不舒服 Help yourself to some fish. 隨便吃 　　12. only adv./adj 僅僅 I am an only child. 獨(dú)生子 　　not only … but (also) … only to do… (意想不到的)結(jié)果... 　　13. ●opening a).孔，洞，縫隙 b).開(kāi)放，展開(kāi) c).空缺的職位 d). 開(kāi)始，開(kāi)端 　　e).開(kāi)幕式，落成典禮 1).There are several openings in the sales department . 　　2).The movie has an exciting opening . 　　3).Have you attended the opening of the Olympic Games ? 　　4).We could see the stars through an opening in the roof . 5).It’s nice to see the opening of a flower . 　　Opening hours/time(營(yíng)業(yè)時(shí)間) his opening remarks (他的開(kāi)場(chǎng)白) 　　14. operate v. 操作，手術(shù) operate a computer 操作電腦 operating system (計(jì)算機(jī))操作系統(tǒng) 　　operate on a patient 給病人手術(shù) operating table 手術(shù)臺(tái) 　　operation n. 操作，手術(shù) in operation 工作中 　　The new rules will come into operation from next week. 開(kāi)始工作，生效 　　put sth. into operation/practice 實(shí)施