小学常见介词和介词短语

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小学常见介词和介词短语一、含义:介词是表示两词之间的关系的词。我们在小学学过的英语介词有:1.on(1)在------上面Thebookisonthedesk.(2)在------(哪一天/星期)WhatdoyoudoonWednesday?(3)在------(月、日)MybirthdayisonAugust2nd.2.in(1)在------里面Thepensareinthepencil-box.(2)在------(哪一年/月)HisbirthdayisinOctober.Heworkedherein1992.(3)在------(地方)HeworksinDongguan.(4)在------之内Whatareyougoingtodoin20years?(5)在------(早上、下午、晚上)Idomorningexercisesinthemorningeveryday.Iusuallyplaybasketballintheafternoon.Ioftendomyhomeworkintheevening.3.under在------底下Thereisaballunderthebed.4.near在------附近Thereisabookshopnearourschool.5.infrontof在------前面Aboyisstandinginfrontofthehouse.6.beside在------旁边Afootballisbesidethedoor.7.nextto紧挨着ThereisabusstationnexttoNo.13MiddleSchool.8.over在------正上方Abridgeisovertheriver.9.ontheleft在------左边Thebookstoreisontheleft.10.ontheright在------右边Thehospitalisontheright.11.before在……之前Mikesitsbeforeme.12.after在------以后Hewenthomeafterschool.13.inthemiddle在------中间Theroadisinthemiddle.14.at(1)在------(小地方)Iamatschooltoday.Iwasathomeyesterday.(2)在------(点钟)Iusuallygotoschoolat8:00am.(3)看一看Lookattheblackboard.(4)在中午atnoon15.behind在------后面Thereisabroombehindthedoor.16.For(1)给Thispresentisforyou.(2)为了Thankyoufortellingmethewaytothezoo.(3)作为Wehavesomechipsandhamburgersforlunch.17.To(1)到TakeyoursportshoestotheP.Eclass.(2)致Happybirthdaytoyou.Giveittoyourfriend.18.from来自IamfromChina.=IcomefromChina.19.from---to从------到------Lineupfromshortertotaller.WehaveclassfromMondaytoFriday.20.of------的HeisastudentofKamaSchool.21.by(1)在------之前Wemustbeathomeby6o’clock.(2)乘------交通工具Peoplecangotothemoonbyspaceship.Igotoschoolbybus.22.With(1)用Iwritealetterwithapen.(2)和------一起HewenttoShenzhenwithhisparents.23.between在------与------之间ThereisafootballmatchbetweenClassOneandClassThree.24.into到------里Sharkscandiveintothedeepcoldwater.25.like(1)像------Thetwinsareliketheirfather.(2)长相------怎样?What’shelike?26.up向上Putupyourhandsifyouhaveanyquestions.27.down向下Putdownallthebookshere.28.about(1)大约;关于It’sabout6:00now.(2)------怎么样?Whatabout---?Howabout---?29.whatfor为什么Butwhatfor?二、介词短语介词短语指的是某一个介词固定与另外一个词搭配,表达某一个固定的意思。以下是我们总结出来的学过的介词短语:1.waitfor等候Waitforme.Iwanttogoshoppingwithyou.2.help---with---帮------干------Icanhelpmymomwithsomehousework.3.athome在家Hewasnotathomeyesterday.4.holdon保持,别挂机Holdon,please.He’swritingane-mailinthestudy..5.onfoot步行Igotoschoolonfoot.6.getto到达Iusuallygettoschoolat8:00am.7.geton上车GetontheNo.28buswhenitstops.8.getoff下车Getoffatthethirdstation.9.turnon打开It’sdarkintheroom.Pleaseturnonthelight.10.turnoff关闭Weshouldturnoffthelightbeforeweleave.11.onholiday度假MyfamilyaregoingtoCanadaonholiday.12.playwith(与)------玩Icanplaywiththesnowinwinter.13.aglassof一杯Thereisaglassofwateronthedesk.14.puton穿上It’scoldtoday.Putonyoursweaterplease.15.takeoff脱下It’shotnow.Takeoffyourcoat.16.putaway放好Putawayyourbooks.WearegoingtohaveaP.Eclass.17.lookfor寻找Iamlookingformydog.18.ontime准时Igettoschoolontimeeveryday.19.intime及时Themanfelldown.Thedoctorscameintime.20.goonatrip去旅行Wearegoingonatriptomorrow.21.atnight在深夜Thepolicemanusuallyworksatnight.22.begratefulto感激某人Iamverygratefultomymother.23.listento听------Ilikelisteningtomusic.24.pass---to---给------传递------HepassestheballtoMike.25.flyinto飞进------TheballfliesintoJohn’sface.26.runinto跑进……Irunintothehotel.27.whatfor为什么Butwhatfor?28.comeon加油!Comeon!小学数学图形计算公式1正方形C周长S面积a边长周长=边长×4C=4a,面积=边长×边长S=a×a2正方体V:体积a:棱长表面积=棱长×棱长×6,S表=a×a×6,体积=棱长×棱长×棱长,V=a×a×a3长方形C周长S面积a边长,周长=(长+宽)×2C=2(a+b),面积=长×宽S=ab4长方体;V:体积s:面积a:长b:宽h:高(1)表面积(长×宽+长×高+宽×高)×2S=2(ab+ah+bh)(2)体积=长×宽×高V=abh5三角形s面积a底h高,面积=底×高÷2,s=ah÷2,三角形高=面积×2÷底,三角形底=面积×2÷高6平行四边形s面积a底h高,面积=底×高s=ah7梯形s面积a上底b下底h高,面积=(上底+下底)×高÷2s=(a+b)×h÷28圆形S面积C周长∏d=直径r=半径,(1)周长=直径×∏=2×∏×半径,C=∏d=2∏r(2)面积=半径×半径×∏9圆柱体:v:体积h:高s;底面积r:底面半径c:底面周长,(1)侧面积=底面周长×高,(2)表面积=侧面积+底面积×2(3)体积=底面积×高(4)体积=侧面积÷2×半径10圆锥体v:体积h:高s;底面积r:底面半径,体积=底面积×高÷3总数÷总份数=平均数和差问题的公式;(和+差)÷2=大数,(和-差)÷2=小数和倍问题和÷(倍数-1)=小数,小数×倍数=大数,(或者和-小数=大数)差倍问题:差÷(倍数-1)=小数,小数×倍数=大数,(或小数+差=大数)植树问题1非封闭线路上的植树问题主要可分为以下三种情形:⑴如果在非封闭线路的两端都要植树,那么:株数=段数+1=全长÷株距-1全长=株距×(株数-1)株距=全长÷(株数-1)⑵如果在非封闭线路的一端要植树,另一端不要植树,那么:株数=段数=全长÷株距全长=株距×株数株距=全长÷株数⑶如果在非封闭线路的两端都不要植树,那么:株数=段数-1=全长÷株距-1全长=株距×(株数+1)株距=全长÷(株数+1)2封闭线路上的植树问题的数量关系如下:株数=段数=全长÷株距全长=株距×株数株距=全长÷株数盈亏问题:(盈+亏)÷两次分配量之差=参加分配的份数,(大盈-小盈)÷两次分配量之差=参加分配的份数,(大亏-小亏)÷两次分配量之差=参加分配的份数相遇问题:相遇路程=速度和×相遇时间,相遇时间=相遇路程÷速度和,速度和=相遇路程÷相遇时间追及问题:追及距离=速度差×追及时间,追及时间=追及距离÷速度差,速度差=追及距离÷追及时间流水问题:顺流速度=静水速度+水流速度,逆流速度=静水速度-水流速度,静水速度=(顺流速度+逆流速度)÷2,水流速度=(顺流速度-逆流速度)÷2浓度问题:溶质的重量+溶剂的重量=溶液的重量,溶质的重量÷溶液的重量×100%=浓度,溶液的重量×浓度=溶质的重量,溶质的重量÷浓度=溶液的重量利润与折扣问题:利润=售出价-成本,利润率=利润÷成本×100%=(售出价÷成本-1)×100%,涨跌金额=本金×涨跌百分比,折扣=实际售价÷原售价×100%(折扣<1),利息=本金×利率×时间,税后利息=本金×利率×时间×(1-20%)

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