09介词的用法
【介词的用法】（讲解1）
13、关于、基础、靠、著论on.
Thisafternoonwearegoingtolistentoareportontheinternationalsituation.今天下午我们要听关于国际形势的报告
Youarewrongonalltheseissues.在这些问题上你的看法都错了
Thebeliefisbasedonpracticalexperience.这种信念是以实际经验为基础的Theorymustbebasedonpractice.理论必须以实践为基础
Thepeopleinthesouthliveonrice.南方人主食大米.（靠）Thecitizensliveontheirsalaries.城市人靠薪金生活.
Herpetdogswerefedonthechoicestfood.她用精饲料喂养她心爱的狗.
Heisjustascrounger,wholivesonotherpeople.他正是一个小偷,专靠损害别人过日子.onthePeoplesDemocraticDictatorship《论人民民主专政》“onCoalitionGovernment”《论联合政府》
on后接the加上一个作名词的动词．其意义与现在分词所表达的相近.
Keepthekettleontheboil.（=boiling）让水壶的水一直开着.Theenemyareontherun.（=running）敌人在逃跑.on the march 在行军中
on the mend 在好转中
on the move 活动中
09介词的用法
【介词的用法】（讲解1）
14、着火,罢工,出售,出差,公务,休假,故意,支付,相反,准时on.
Thehousenexttominewasonfire.我邻居的房子着火了.
Theworkersoftherailwaystationwereonstrike.铁路工人罢工了.
Grapesandbigwatermelonsareonsaleonalargesale.葡萄和西瓜大量上市了.I?vecomehereonbusiness.我是有公事来的.
TheywenttoBernonamission.他们到伯尔尼去执行一项使命.
IwentonbusinesstoShanghai.Ididnottakeleave.我是公出去上海的,不是不告面别.Theyhasbeenawayonalongtrip.他们出去做一次长途旅行.I?llgohomeonleavenextmonth.下月我将休假回家.
Shecametoseeyouonpurpose.她是专程来看你的.
Hecamehereonpurposetodiscussitwithyou.他到这来是要与你讨论这件事的.Thislunchisonme.“No.letsgoDutch.”“这顿午饭我付钱.”“不,还是各付各的”.Onthecontrary,itwasveryeasytounderstand.
相反,这事儿很容易理解.
P1easecomeontime.（onschedule）.请准时来.注:intime是“及时”的意思.
Thetrainarrivedonschedule.火车准时到达.
09介词的用法
【介词的用法】（讲解1）
15、特定时间、“一…就”、左右,on后+动名词.
Gasesexpandonheatingandcontractoncooling.气体加热时膨胀,冷却时收缩.（特定时间）Onenteringtheroom,hefoundhisfriendsdancinginhighspirits.一进屋,他就发现他的朋友们在愉快地跳舞
OnreachingthecityhecalledupLaoYang.一到城里他就给老杨打了一个电话I'llwritetohimonhearingfromyou.我接到你的来信就给他写信（一……就）
on the left/right 向左/右; on the stair 在台阶上.
16、步行、骑驴马、开玩笑on.
on foot 步行
Go on horse back! 骑马去！
You are having me on! 你和我开玩笑呢!
Herodeon,bloodflowingfromhisside.他骑着马,鲜血从腰部流下来
ThesoldieroftheEighthRouteArmyrode100lionahorseadayinordertocatchupwithhisunit.为赶上部队,那位八路军战士骑马日行百里
注意:cab,carriage用in cab和in carriage 不能用on或by cab或carrige.
on horse 骑马
on donkey 骑驴
09介词的用法
【介词的用法】（讲解1）
17、在山脚/门口/当前/日落/…核心;以…速度/温度;…价用at.
at a high speed 高速at that time 在当时at daybreak 日出时at a good price 高价
at full speed 全速at home 在家里at zero 零度at a low cost 低成本
at 1000RPM 每分钟1000转
at ten degrees centigrade 在摄氏10度at minus ten degrees centigrade摄氏零下10°at a great cost 花了很大代价
Atthefootofthemountain,therearethirtyofourcomrades.在山脚下,有我们30个同志.Thereisabeautifullakeatthefootofthehill.山脚下有一个美丽的湖.
Atthegateofthehousetherearemanychildrenplayingbasketball.门口有一大群孩子在玩蓝球.Whoisstandingthereatthedoor?谁站在门口?
Idon'tneedthedictionaryatpresent.我现在还不需要这本词典.HeisatpresentinWashington.他目前正在华盛顿.
Thesoldierslaunchedanattackupontheenemyatsunset.战士们在日落时对敌人发起了攻击.Thetrainrunsatfiftykilometresanhour.火车每小时行驶50公里.Waterfreezesat0°centigrade.水在摄氏零度结冰.Waterusuallyboilsat100°.水通常在摄氏100度沸腾.Evaporation takes place at all tempertures. 蒸发在任何温度下都能发生.The atom has a nucleus at its core. 在原子的中心有一个原于核.
20. 与to搭配的名词有：key ,answer, visit, apology,
introduction;
与in搭配的名词有：interest, satisfaction, expert;与on搭配的名词有：mercy, congratulation;
21. 与at搭配的形容词有：afraid, angry, good, bad, clever,
terrified, surprised;
与of搭配的形容词有：afraid, sure, full, tired, fond,
proud, worthy, certain;
与with搭配的形容词有：angry, strict, careful, busy,
popular;
与in搭配的形容词有：weak, strict, rich, interested,
successful;
与to搭配的形容词有：next, good, polite, kind, cruel,
known, anxious, married, close, near, similar, due, parallel