1、Unit 5 What are the shirts made of 主动语态和被动语态1.在英语中，动词有两种语态，即主动语态(The Active Voice)和被动语态( The Passive Voice)。主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。eg:Many people speak English.(主动语态)English is spoken by many people.(被动语态)2 一般现在时被动语态的构成：当谓语是一般现在时的时候，被动语态由“be (am, is, are)及物动词的过去分词”构成。助动词“be“随人称、数的变化而改变。eg：T
2、his knife is made of wood and metal.Bananas are produced in Hainan.I am taken care of by my uncle.3.被动语态的用法：当说话者不知道动作的执行者或没有必要指出动作的执行者，只需要强调动作的承受者时，要求使用被动语态。如果需要在被动语态中指出动作的执行者时由介词 by 引导。eg：Chinese is spoken by the largest number of people in the world.全世界说中文的人最多。4.主动语态改写成被动语态的方法：将主动语态的宾语变成主语，将主动语态的谓
3、语变成被动式 be+过去分词，主动语态的主语变成被动句 by 的宾语(或省略)。如果主动语态中有两个宾语(直接宾语和间接宾语)，可以把其中任意一个变成主语。eg: My teacher gives me a lot of books.(主动语态)I am given a lot of books by my teacher.A lot of books are given to me by my teacher.单元语法精练一、单项选择。( )1. The bridge_ over the river last year.A. is build B. was builded C. was bu
4、ilt D. is builded( )2. This kind of machine_ cutting paper.A. used for B. is using for C. is used to D. is used for( )3. Light was_ by Thomas Edison many years ago.A. produced B. invented C. found D. discovered( )4. No one knows how the huge rocks_ and _ without modern machines eight hundred years ago.A. are cutted；moved B. were cutted；movedC. were cut；moved D. was cut；moved( )5. Luckily，the boy was not_ .A. bad hurted B. badly hurted C. badly hurt D. bad hurt7. Many boys _ (invite) to the party last Sunday.8.1 _ (tell)to help my mother when Im free.
