1、With的基本用法和判别,作“同、跟”解可用于同伴、对象或敌手,Oil will not mix with water.,油总是不能和水相混。,2. 作“用”解，指工具、手段 其介词短语一般作状语,CuO can be reduced with H2.,氧化铜可用氢气来还原。,3. 表示方式，其介词短语一般作状语,Not all elements react with oxygen with equal ease.,并非所有元素都是同样容易地和氧结合。,4. 作“随着、和同时”解，表伴随,The pressure varies with the temperature.,压强随温度而变。,5.
2、 作“带有、具有”解，说明名词表事物的附属部份或所具有的性质,The atom is made up of a nucleus with negative electrons revolving around it.,原子是由原子核和绕核旋转的若干负电子组成。,6. 作“由于、虽然、如果、在情况下”解，表原因、结果、条件、时间等,Equilibrium is often produced with frictional forces.,平衡常常是由于摩擦力的存在而得到的。,The atomic reactor could run wild with too many neutrons.,倘若中子太多，原子反应堆就无法控制。,8、若遇上with后的宾语接有现在分词、过去分词、不定时、形容词、副词，可称为with后带“主谓”关系，则整个with短语说明附带情况或交代细节,The pressure of a gas varies inversely as its volume, with temperature being constant,当温度不变时，气体压强和体积成反比。,With the pressure removed, the molecules would spring back.,若压力一撤出，分子就会弹回来。,
