初中英语被动语态讲解.doc

英语被动语态讲解英语动词有两种语态：主动语态和被动语态。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。一、被动语态的构成 英语动词的被动语态由助动词be+及物动词的过去分词构成。助动词be必须与主语的人称和数量保持一致，并有时态的变化。例如：The man was fooled by the two boys. The book has been translated into several languages.二、被动语态的用法（1）动作的执行者不知道是谁或难以说明时常用被动语态。例如： Street lights are often turned on at six in winter. The new test book will be used next term.（2）当动作的承受者比起动作的执行者来说更能引起人们的关心而需要加以强调时，要用被动语态。例如：This kind of bicycle is not sold in our shop. The thief was caught by a policeman yesterday.（3）含有双宾语的句子，主动句中的间接宾语或者直接宾语都可变为被动语态中的一个主语，另一个保留不变。变为主语的若是主动句中的直接宾语在变为间接宾语前则需加介词to 或for。例如：The pianist gave the pupils(间接宾语)some advice(直接宾语) The pupils were given some advice by the pianist. Some advice was given to the pupils by the pianist.(4)在主动语态句中动词make、have、let、see、watch、hear、feel等后接动词不定式作宾语补足语，动词不定式不加to。但变成被动语态时后面的不定式都须加上to。例如：The boss made them work ten hours a day. They were made to work ten hours a day. A boy saw him enter the house. He was seen to enter the house.三、被动语态的时态教材中出现了四种时态的被动语态及带有情态动词的被动语态。一般现在时 构成：助动词be + 动词的过去分词 例如：This kind of car is made in shanghai. 一般过去时 构成：助动词was/were + 动词的过去分词 例如：The bridge was built in 1992.现在进行时 构成：be + being + 动词的过去分词 例如：A new bridge is being built in my hometown. 一般将来时 构成：will/be going to do + be + 动词的过去分词 例如：These books are going to be posted tomorrow.带有情态动词的被动语态 构成：情态动词 + be + 动词的过去分词 例如：Can this walkman be repaired here?主动语态改为被动语态的步骤：主动语态中的宾语变为被动语态句中的主语；主动语态句中的动词改为相应的被动语态；主动语态句中的主语变为被动语态句中by的宾语。主动语态句中的谓语动词带有双宾语，即直接宾语和间接宾语时，转换方法有两种：把间接宾语转化为主语，保留直接宾语把直接宾语转化为主语，保留间接宾语。此时，一般需在间接宾语前加适当的介词（通常是介词for或to)。在短语see sb. do sth. 中，动词see后跟不带to的不定式作宾补。改为被动语态时要加上to。用于这一结构的谓语动词一般是表示知觉的动词如see, hear,watch,find等，以及使役动词make, let等。第三节 巩固练习.把下列主动语态改为被动语态:1、We often use a recorder in our English class.2、They will show a new film next week.3、When did they build the house?4、I saw the boy enter the room.5、Will they show a new film next week?6、Have they posted the letter yet?7、We often see him help his classmate.8、You must turn off the light before you go to be.d9、Who is repairing the bike?10、The student should learn all the texts by heart.选择填空:1. The reading room _ yesterday afternoon. A. cleaned B. is cleaned C. was cleaning D. was cleaned2. The workers were made _ ten hours a day.A. work B. to work C. working D. worked3. Food _ in a cool place in summer. A. must keep B. mustnt keep C. must be kept D. mustnt be kept4. His father _ to work in Hong Kong 3 years ago. A. sent B. was sent C. has sent D. has been sent5. The pen _ well. A. writes B. is written C. was written D. writing6. Great changes _ in the town since 1988.A. have taken place B. have been taken place C. has taken place D. has been taken place7. Our compositions must _ next Monday. A. be hand in B. be handed in C. handed in D. be handing in8. The child will _ back to his parents next month. A. sent B. send C. be sent D. be sending9. _ his work _ yet? A. havebeen finished B. has been finished C. has finished D. havefinished10. The classroom _ now. A. is cleaning B. is being cleaning C. is being cleaned D. is cleaned.用适当时态和语态的动词填空:1、Can he _ (speak) English? 2、What language _ (speak) in that country?3、The film _ (show) many times since last Sunday. 4、These TV sets _ (make) in Sichuan.5、It has got so dark. Would you please _ (turn) on the light?6、A new hospital _ (build) in this area now. 7、_ the book _ (return).8、Rice _ (grow) in the south. 9、The window _ (not break) by the boy.10、I _ (tell) he _ (not come) just now. 3、通过活动，使学生养成博览群书的好习惯。B比率分析法和比较分析法不能测算出各因素的影响程度。C采用约当产量比例法，分配原材料费用与分配加工费用所用的完工率都是一致的。C采用直接分配法分配辅助生产费用时，应考虑各辅助生产车间之间相互提供产品或劳务的情况。错 C产品的实际生产成本包括废品损失和停工损失。C成本报表是对外报告的会计报表。C成本分析的首要程序是发现问题、分析原因。C成本会计的对象是指成本核算。C成本计算的辅助方法一般应与基本方法结合使用而不单独使用。C成本计算方法中的最基本的方法是分步法。XD当车间生产多种产品时，“废品损失”、“停工损失”的借方余额，月末均直接记入该产品的产品成本 中。D定额法是为了简化成本计算而采用的一种成本计算方法。F“废品损失”账户月末没有余额。F废品损失是指在生产过程中发现和入库后发现的不可修复废品的生产成本和可修复废品的修复费用。F分步法的一个重要特点是各步骤之间要进行成本结转。()G各月末在产品数量变化不大的产品，可不计算月末在产品成本。错G工资费用就是成本项目。()G归集在基本生产车间的制造费用最后均应分配计入产品成本中。对J计算计时工资费用，应以考勤记录中的工作时间记录为依据。()J简化的分批法就是不计算在产品成本的分批法。()J简化分批法是不分批计算在产品成本的方法。对 J加班加点工资既可能是直接计人费用，又可能是间接计人费用。J接生产工艺过程的特点，工业企业的生产可分为大量生产、成批生产和单件生产三种，XK可修复废品是指技术上可以修复使用的废品。错K可修复废品是指经过修理可以使用，而不管修复费用在经济上是否合算的废品。P品种法只适用于大量大批的单步骤生产的企业。Q企业的制造费用一定要通过“制造费用”科目核算。Q企业职工的医药费、医务部门、职工浴室等部门职工的工资，均应通过“应付工资”科目核算。 S生产车间耗用的材料，全部计入“直接材料”成本项目。 S适应生产特点和管理要求，采用适当的成本计算方法，是成本核算的基础工作。()W完工产品费用等于月初在产品费用加本月生产费用减月末在产品费用。对Y“预提费用”可能出现借方余额，其性质属于资产，实际上是待摊费用。对 Y引起资产和负债同时减少的支出是费用性支出。XY以应付票据去偿付购买材料的费用，是成本性支出。XY原材料分工序一次投入与原材料在每道工序陆续投入，其完工率的计算方法是完全一致的。Y运用连环替代法进行分析，即使随意改变各构成因素的替换顺序，各因素的影响结果加总后仍等于指标的总差异，因此更换各因索替换顺序，不会影响分析的结果。()Z在产品品种规格繁多的情况下，应该采用分类法计算产品成本。对Z直接生产费用就是直接计人费用。XZ逐步结转分步法也称为计列半成品分步法。A按年度计划分配率分配制造费用，“制造费用”账户月末(可能有月末余额/可能有借方余额/可能有贷方余额/可能无月末余额)。A按年度计划分配率分配制造费用的方法适用于(季节性生产企业)