3.of the laws of nature自然规律的

[对]mental

adv. physically

piano [pI5An[U]n. a large musical instrument, placed by pressing narrow black or white bars which cause small hammers to hit wire strings 钢琴： play the piano 弹钢琴(演奏乐器，乐器名词前要带定冠词)pianist

n. a person who plays the piano, esp. with skill钢琴家

pick [pIk]v. 1.to choose挑选

2.of the body; bodily身体的； 体力的：

a physical examination 体格检查

physical labour体力劳动

physical training体育锻炼

3. a person who is specially loved or lovable特别受爱护的人；可爱的人

photo/photograph[5f[Ut[U]/[5f[Ut[grB:f] n. a picture obtained by using a camera and film sensitive to light照片：

take a photo/photograph/ take photos/photographs 拍照

have/get ones photo taken请人给自己拍照

photocopier (= photocopying machine) n.影印机

photographer n.摄影师

physics [5fIzIks]n. a science concerned with the study of matter and natural forces (such as light, heat, movement, etc.)物理学

physical 　[5fIzIk[l]adj.1.of material things物质的

2.a person (esp. a child) or thing specially favoured above others.受宠爱的人或物

2. (+ sb. into/ out of/ to do sth.) to cause to do something by reasoning, arguing, begging etc.说服：

persuade sb. into doing sth./ persuade sb. to do sth. (成功地)说服，劝说好某人做某事

try / want to persuade sb. to do sth.(= advise sb. to do sth) 试图想说服某人做某事， 表示劝说不一定成功

pet [pet]n. 1.an animal kept by a person in the home as a companion爱畜；宠物

2.done or made directly by a particular person, not by a representative亲自的　 personally [5p[sn[lI]adv. speaking for oneself only; as far as oneself is concerned 就自己而言

persuade [p[(:)5sweid]vt. 1.(+ of sth./ that-clause) to cause to feel certain; convince劝说；使相信

4.a division of a school day; lesson 一节； 一堂： a period of time 一段时间　 [辨析] period, time, age:　 period含有“周期、时期”之意， 时间性可长可短；time指特定的时期、时代， 常用复数形式；age指有某种明确特征或以杰出人物为标志的“时代、时期”

permit [p[5mIt]vt.(permitted, permitting) to allow 允许； 容许； 准许；许可：allow sb. top do sth. 允许某人做某事； allow (sbs) doing sth. 允许做某事;

weather permitting 如果天气允许的话(用作状语) [辨析]permit, allow, let， promise, admit:　 allow 日常用语，指允许某人做某事， 一反对某人做某事， 有消极的意味，侧重于听任、默许、不加阻止， 不按常规行事；permit含有积极的下面意义，多用于正式场合，指给予做某事的权利，如通过法令或正式条文“允许”做某事；allow可以和副词连用，permit 则不能；在表示客气的请求时，主语是you时应用permit, 以表示尊敬的请求，若主语用I， 则应用allow的被动形式； let 指允许某人做某事， 多用于口语中，祈使句中用let,　 let 一般不用于被动式，在被动式里改用allow; promise 表示“答应、许诺”，用于主语答应自己要做某事； admit 表示 “认可”，作“认为下当确实、允许、承认”解，有时指在外界压力下不得不“承认”错误或事实。

n. an official written statement giving one the right to do something通行证，许可证执照

permission [p[5mIF[n]n. agreement 允许，许可，同意：with ones permission 经某人允许　 without ones permission未经某人允许

person [5p[:sn]n. a human being 人 [辨析]human, person, people :　 human作名词时等于human being, 在将人与动物、神仙、鬼等到比较时常用human;　 person可以指man, woman 和child， 其复数形式常是people, 用persons 则强调数量的概念， 比较正式，“一个人”应该说：“a person , 一能说：“a people, 两个人则可以说“two persons或“ two people； people泛指人们，　 the people指人民或确指的“人们”，　 a people和 peoples指民族， 种族；

personal [5p[:snl]adj. 1. private; individual 个人的； 私人的

3.a complete and repeated stretch of time fixed by the forces of nature周期

2.a particular stretch of time in the development of a person, a civilization, the earth, an illness, etc.时期；时代

3.to give , act or show (a play, a part/role in a play, a piece of music, tricks, etc.)esp. before the public 表演；演(剧)；奏

performance　 [p[5fC:m[ns]n. 表演；演出：put on/ give a performance演出

performer [p[5fC:m[]n. 表演者；演奏者

perhaps [p[5hAps]adv. maybe; possibly; probably 也许； 可能　 [辨析]perhaps, possibly, probably, maybe: 均可表示“可能”， 但有区别：perhaps常置于句首，表示“有大致一半的可能性”；maybe常置于句首，表示不能肯定，含也许如此， 也可能不是；possibly常与can , could, may, might 连用，表示可能性较小， 但仍有机会；probably表示可能性较大，可能性比maybe 和perhaps 大；是有几分根据的推测

period [5pi[ri[d]n.1.a stretch of time with a beginning and an end, but not always of measured length 一段时间