231. once 用法：once upon a time; once in a while; once every two weeks
Note: 可以引导时间状语从句，表示一旦……。
232. open 用法：keep the door open; be open to; an open window   Note: be open表示开放；be opened表示开张。
open a.开的;开放的 vt.开 Does the shop open at 9 am on weekdays? 这家店平日是早上9点开门吗？
open to the public 向公众开放The town gardens are open to the public from sunrise to the sunset daily.市立公园每天从早到晚对公众开放。
open traffic 通车 open into 门打开后通向 open to 道路通向 The road bridge is now open to traffic.这座公路桥现在开放通行。 open up 开垦 open fire on sb. 向某人开火 open out 打开,转开
233. operate用法：operate sth. 及物，开动，操作。不及物时，“起作用”Is this drug operating yet?
Note: 动手术，只能是不及物。常和介词on连用。You can get a private doctor to operate on him.
234. or 用法：either…or.. , one or two… , or else, or rather, or so, Hurry or you won’t make the train.
Note: or other和something , sometime 等词连用表强调。I’ll think of something or other for the plan.
235. order 用法：order sb. to do; order that…; in order to; out of order
Note: order后面的从句要使用虚拟语气，即order that sb. should do的形式。

236. other 用法：would rather, some…or other , others, the others ,the other day 不久前有一天
Note: tthe other 指两个中的另一个。others , the others 可以做主语宾语等。
237. outdoor 用法：outdoor activities
Note: outdoor是形容词，作定语或表语；outdoors是副词，作状语，如：Let’s play outdoors.
238. over 用法：over there; over 40; go over; come over to my house
Note: 表示在……之上时，over往往表示运动。如：The plane flew over the city.
239. owe用法：owe $ to sb. = owe sb. $ / owe… to … …应归功于… 或者…用归咎于…。
Note: owing to 由于，后跟名词。 His death was owing to an accident.
240. paper 用法：a piece of paper; paper work
Note: 表示纸张时不可数；表示报纸、文件、试卷时可数。

241. part 用法：(a) part of; part with; spare part（s）  Note: a part of表示一小部分；part of不强调大小。
242. past 用法：go past sb.; in the past; in the past 10 years
Note: in the past与过去时搭配；in the past 10 years用完成时。
* pass v.通过 n.经过;通行证 Even if you take the exam again, you won't pass it. 就算再考一次你也通不过。 pass away 消磨(时间) to pass away 去世,死（委婉的说法）
pass by 从某人身边经过,过去 304. Don't let chances pass by． 不要让机遇从我们身边溜走。
pass off 消失,顺利地进行 pass for 冒充,假扮 pass on 传下去
pass through 经历 We don't like them to pass through here. 我们不希望汽车通过这里。
243. pay用法：pay a visit to, pay attention to , pay back, pay for, pay off, pay one’s respect to , pay out, pay up
Note: pay的宾语既可以是人也可以是金钱。用作名词，表示工资待遇，不可数。
244. percent 用法：percent of
Note:百分数的动词单复数主要由其所代替的名词所决定。如果代替的是不可数名词或可数名词单数，谓语动词用单数；如果代替的是复数名词，则谓语动词也用复数形式。
245. permit 用法：permit sb. to do; permit doing
Note: 与allow用法一样，但还可作不及物动词，如：If weather permits, we will go for an outing.

246. persist 用法：persist in (doing) sth. 坚持干。。。  Note: persist that… 坚持说。。。
247. persuade 用法：persuade sb. to do; persuade sb. into doing
Note: 只有表示劝说成功的时候才可以用persuade, 否则可以用try to persuade.
248. pick 用法：pick apples; pick pocket; pick up
Note: pick表示采摘；pick up表示捡起，学会，接送，收听到等。
pick n.风镐;牙签 v.凿;摘 ;挑选I pick up my sister from her school. 我到学校接妹妹。
pick out 挑选,认出(某人),领会
pick up 捡起来,中途把某人装上车,恢复健康 I pick up my sister from her school. 我到学校接妹妹。
249. play用法：play a part/ role in , play fair, play a trick / joke on, play truant, play with
Note: 该词后跟球类运动不加冠词；跟乐器得加冠词the。
250. pleased 用法：be pleased with; be pleased to do
Note: pleased是表语性形容词，在句中只能作表语，不能作定语。作定语的可以使用pleasant.

251. pleasure 用法：with pleasure; my pleasure; it’s a pleasure
Note: with pleasure表示非常愿意；it’s a pleasure和my pleasure表示不用谢。
252. point 用法：5 points; point of view; point at/to/out
Note: point at表示指着一个物体；point to表示指着一个方向。
253. population 用法：a large/small population; what’s the population? 5个考点。
Note: 表示人口数字的时候谓语动词用单数；表示居住在某一地区的人时谓语动词用复数。
254. praise 用法：praise sb. for; in praise of，sing the praises for     Note: praise作名词时不可数。
255. prefer 用法：prefer A to B; prefer sb. to do sth. prefer to do sth.…rather than do sth.
Note: prefer后面用不定式表示某一次具体的动作，用动名词表示习惯性的动作。

256. prepare 用法：prepare sth.; prepare for sth.; be prepared
Note: prepare sth.表示准备某事；prepare for sth.表示为某事做准备。
257. present用法：present…with sth. , present oneself, be present , be present in 存在
Note: 作为名词意为“现在”，“礼物”，make a present of sth. to sb. 把...送给…at present, for the present,
258. pretend用法：pretend that…, pretend to do sth. , pretend to sth. 自称。　He pretends to great knowledge.
Note: 该词只有两种宾语。作为形容词，意为“假的，想象出的”That is my pretend friend.
259. prevent 用法：prevent sb. (from) doing
Note: 在被动语态中，from不能省略：He was prevented from going to school because of his illness.
260. price 用法：high/low price; what’s the price?   Note: 经常与介词at搭配，表示以……的价钱/代价。

261. promise 用法：promise to do; make/keep/break a promise, promissing
Note: 作动词时可以表示显示出，如：The clouds promise rain.
262. prove 用法：prove to be; prove sth.; prove that…
Note: 作系动词使用，表示被证明是……，不用被动语态。
263. provide 用法：provide sth. for sb.; provide sb. with sth.
Note: 分词经常作连词使用，表示如果……的话，如：She can go with us provided that she arrives in time.
pull v.拖,拔, 扯 n.牵引 to pull a trailer 拖汽车房屋（电影中经常见到）
pull down 拆掉,推掉,使身体虚弱,使价格降低 pull off 脱衣帽 pull off a plan 实现计划
pull out 拔出,离开,度过难关,恢复健康 to pull out of the garage 从车库开车出来
pull throw 渡过难关,使从病中恢复过来 pull up 车子停下,拔起(树、草)
264. put用法：put aside / away / back / down / forward / in / into power /off / on / on weight / out／put up with
Note: put through 接通电话，经历，完成；put up 修建，张贴，举起手，住宿，捐赠，提出建议
put v.放;移动;使穿过;写 Do you know where I've put my glasses? 你知道我把眼镜搁哪儿了吗？
put away 放下,收起来,把…放在原位 595. He has a nice sum of money put away． 他存了一大笔钱。
put aside 把放在...留出(时间),备用
put back 放在原处,推迟,延期 52. When the others had gone, Mary remained and put back the furniture.当其他人走了之后,玛丽留下来,将家具放回原处。
put down 镇压,写下来 He put down his glass.他放下杯子。 put forward 提出,提前,提供
put in 提交,申请(+for) All is not gain that is put in the purse. 装进钱包里的不一定都是正当的收入。
put off 推迟,延期,打消,关上 71. Never put off till tomorrow what you can do today.今日事今日毕。
put on 穿上,上演 put on a bit of makeup. 我化一点妆。 put through 接通电话
put out 扑灭,关灯,生产,出版 Far water does not put out near fire.远水救不了近火。
put up 张贴,留某人过夜,建造 if we can put up some collateral. 如果我们能提供担保物的话
put into production 把...投入生产 put into use 投入使用 put one's heart into 全心全意投入
265. quarrel用法：quarrel with sb. about sth. 就…而吵架；quarrel with sb. for sth.因…而吵架
Note: quarrel with 还有“找茬，挑毛病，和...过不去” A bad student quarrels with his pen.

266. question 用法：in question; beyond question; out of (the) question, question sb. on sth.
Note: out of question表示没问题；out of the question表示不可能。
267. raise 用法：raise the price; raise a question; raise pigs
Note: 及物动词，要与不及物动词rise分开。
268. rather用法：had rather, or rather, rather…than…, rather than, would rather…than…,
Note: I’d rather you did it. 宾语从句中使用虚拟语气。
269. reason 用法：the reason for/why, reason sb. into doing sth. 通过讲道理使某人做…，
Note: 说明reason的内容时不能用because, 如：The reason why he was late was that he was ill.
270. receive用法：receive sth. receive sb.
Note: receipt 收到（不可数）；收条（可数），be in receipt of, on receipt of。reception 接待。

271. recognize用法：recognize sth. / sb. / that…, recognize …as…
Note: recognize 表示辨认出；而know表示知道，了解；realize 表示意识到。
272. recover 用法：recover from
Note: 过去分词表示痊愈了的，如：Are you completely recovered from your illness?
273. refer 用法：refer to; refer …to …
Note: refer to表示谈到、查阅；refer …to …表示归功于……、归咎于……。
274. refuse用法：refuse sth. refuse to do sth.
Note:　有时候也有这个句式：They refused me permission. She can’t refuse him anything.
275. regard 用法：regard …as …; in/with regard to   Note: 复数表示敬意，如：give/send one’s regards to…

276. regret用法：regret sth. / that… / doing sth. /
Note: 如果跟不定式表示“遗憾”，常和say, tell, announce, inform等词连用。
277. remain 用法：remain clean; remain to be, remaining
Note: 可以作系动词或不及物动词，没有宾语，没有被动语态。
278. remember 用法：remember to do; remember doing; remember me to …
Note: remember to do表示记着要去做某事；remember doing表示记着做过某事。
279. remind 用法：remind sb. of sth. ; remind sb. that …   Note: Please remind me to do sth. …表示请提醒我……。
280. repeat 用法：repeat the question; repeat oneself
Note: repeat本身就有again的意思，不能与again连用。

281. result 用法：result in 结果…； result from 由…造成。without result 白费。
Note: as a result　结果，作状语；as a result of　由于…的结果，表示原因； in the result
282. return 用法：return to; return the book; in return; many happy returns 祝你长寿
Note: return本身就有back的意思，不能与back连用。
283. right 用法：on the right; you are right; all right，It’s all right. That’s all right. That’s right.
Note: right作副词时表示正好，如：He was hit right on the face.
284. rob用法：rob sth. , rob sb. of sth. robber 劫匪，robbery抢劫
Note: rob sb. of sth. 还有“剥夺，使失去”You have robbed me of my happiness!
285. room 用法：standing room; make room for; bathroom   Note: room表示空间时是不可数名词。

286. round 用法：round the corner; all the year round
Note: a round trip表示往返；a single trip单程旅行。
287. run用法：run a race / a risk / across / after / against / away / away from / down. / for / into / off / out / over
Note: 作及物动词可表示“经营，管理”。run off one’s feet 忙得脚丫子朝天。run out of 人做主语。
run v.(使)跑 n.赛跑;路线 He can run as fast as Jim. 他跑的和吉姆一样快。
run across 穿过(跪道),偶然遇到 run after 追赶 to run after the gentleman 追求绅士
run away 逃走,失去控制 to run away from his sister 从他姐姐那儿逃走（发生了什么事情？）
run down 身体虚弱,电用完了 run into sb 碰到某人
run for 竞选 Why shouldn't you run for what, Mom? 为什么 不该竞选什么 妈妈
run out 用完 Well, I suppose I've run out of excuses. 噢 我想我再也找不出籍口了。
run over 匆匆浏览 run through 穿过,匆匆看一下,做完 Let's just run through the arguments for and against. 我们来看一下赞成和反对的理由。
run a risk of =at the risk of 冒...险 run a fever 发烧 run short of 缺乏
288. sale 用法：on sale; for sale; sales tax; salesman
Note: on sale表示减价出售(美)；出售(英)；for sale表示待售。
289. same 用法：the same as; at the same time; all the same   Note: same前面的定冠词不可省略。
290. satisfy用法：satisfy sb. be satisfied with , to one’s satisfaction使某人满意的事
Note:　satisfy sb. that…使相信。He satisfied me that he could do the work well.

291. say 用法：say that… say hello / good bye to sb. say to oneself 心里想到，暗自思量。That is to say.
Note: say He is said to have gone to the U.S.A. 不定式的动作发生在主句谓语动作前，用完成时态
292. school 用法：at school; go to school; law school
Note: go to school表示上学的目的，不加冠词；go to the school表示到学校这个场所。
293. score用法：in score , keep the score, on the score of 由于，为…，
Norte: 名词表示“比分，得分，考分”；二十。A score of, scores of , three score and ten 七十
294. sea 用法：go to sea; at sea; by sea   Note: by sea表示乘船；by the sea表示在海边。
run v.(使)跑 n.赛跑;路线 He can run as fast as Jim. 他跑的和吉姆一样快。
run across 穿过(跪道),偶然遇到 run after 追赶 to run after the gentleman 追求绅士
run away 逃走,失去控制 to run away from his sister 从他姐姐那儿逃走（发生了什么事情？）
run down 身体虚弱,电用完了 run into sb 碰到某人
run for 竞选 Why shouldn't you run for what, Mom? 为什么 不该竞选什么 妈妈
run out 用完 Well, I suppose I've run out of excuses. 噢 我想我再也找不出籍口了。
run over 匆匆浏览 run through 穿过,匆匆看一下,做完 Let's just run through the arguments for and against. 我们来看一下赞成和反对的理由。
run a risk of =at the risk of 冒...险 run a fever 发烧 run short of 缺乏
295. seem用法：seem to do sth. / to be../ 形容词　／分词／名词　／介词短语
Note: It seem that… , It seems as if… There seems to be …

296. search 用法：search for; in search of
Note: search for sb.表示寻找某人；search sb.表示搜某人的身。
297. seat 用法：have/take a seat; be seated; The room can seat 40 people.
Note: seat是及物动词，一般用人作宾语；物作宾语意为“容纳”。没有宾语就必须用被动语态。如：He was seated next to an old lady.
298. seize用法：be seized with 突然生病，突然感到，产生某种想法　seize hold of
Note: seize sb. by one’s arm = seize one’s arm    　seize 强调突然；而hold 表示状态。
299. sell 用法：be sold; sold out; sell sth. for 5 dollars
Note: 与well搭配时不用被动语态，表示状态。如：This kind of book sells well.
300. send 用法：send up/out/for/away, send sb. to do sth.
Note: send sb. to place表示打发某人去某地；take sb. to place表示带着某人一起去某地。
send vt. vi.送,寄发;派遣 To make it fast, you can send a fax. 要想快点的话就发个传真。
send for 派某人去请,去叫某人 send off 发出,寄出
send sb off =see sb. off 为某人送行,解雇 send out 发出,发射 send in 交上去,递送
send on 转交 I can send one for you to try. 我们可以寄个给你试用。

301. separate 用法：a separate room; separate…from…
Note: separate表示把不同的整体分开；divide表示把一个整体分成若干部分。如：Please separate the good apples from the bad ones. He divided the apple into three pieces.
302. serve 用法：serve the people; serve good food; serve sb. Right
Note: serve for 不是为……服务的意思，而是充当的意思 = serve as 。如：The box serves for a table.
303. set 用法：set up/out/off/about/an example/ back/ fire to   Note: 名词词组a set of可作量词使用，表示一套。
set vi.(日,月)落,vt.放 We are going upstairs to set up Grandpa's room. 我们要上楼收拾一下爷爷的房间。 set about sth 着手做某事 set about doing sth 着手做某事 set out 出发,开始做某事,陈述 24. After several delays, he finally set out at 8 o'clock.几经耽搁,他终于在八点钟出发了。
set apart 分离,流出 set aside 流出,宣布…无效 In that case ,I'll have some set aside for you. 既然这么说,我会为你留一些下来。 set down 放下,写下 set off 出发
set up 建立 We are going upstairs to set up Grandpa's room. 我们要上楼收拾一下爷爷的房间。
set fire to 放火烧 set an example for 为某人树立榜样
304. shall用法：作为助动词表示纯粹的将来，用于第一人称。
Note: 情态动词，用于1,3人称的疑问句，征求对方意见；用于2,3人称，表示许诺，威胁，命令。
305. share 用法：share sth.; share in happiness/ housework
Note: 名词表示一份，如：I want my share of the money.

306. should用法：情态动词表示虚拟语气，用于表示请求，建议，命令等词后面的从句中，可以省略。
Note: 用于It is time that…句型时，不能省略。在If从句中，表示与将来事实相反。
307. show 用法：show sb. sth. show sb. round, show off, show up, show sb. in / out /the door
Note: show sb. in / out 中的in / out 是副词
308. sick 用法：be sick of; sick people     Note: 表示生病的时候既可以作表语也可以作定语。
309. since用法：ever since, since then, long since It is ….since…
Note: since引导的从句在句首是让步状语从句，时态和主句一致；位于句末时间状语从句，用一般过去时态，特别注意since引导从句中的谓语动是瞬间动词还是延续性动词。It’s a long time since you were here last. = It’s a long time since you left.
310. size 用法：be of the same size; size 25
Note: 短语the size of可以表示大小比较，如：This hall is three times the size of that room.