新概念第一册第(2).ppt

Warm-up,幸运猜猜猜,Lesson 141,Lesson 143,宾语从句：,定义：,结构：,引导词：,主语+谓语+引导词+宾语从句,在句中作宾语成分的句子。,that,what,when,why,where if,原则：,从句必须使用陈述句语序。,我不知道我什么时候能完成？ I dont know when I will finish.,我不知道你在说什么？ I dont know what you are talking about.,我妻子想知道玛丽是否需要帮忙。 My wife wants to know if Mary needs any help.,我 打 他了。,被动语态,他 被 我 打 了。,主动语态,谓语：动作,主语：动作的发出者,宾语：动作的承受者,主语：动作的承受者,主语为动作的承受者。,主语为动作的发出者。,被动语态,定义：,主语为动作承受者的语态。,结构：主语+be+V.过去分词,主动语态,被动语态,1.宾语变主语,2.V.变be+V.过分,3.by+主语（宾格）,She waters the flowers every day.,主语,宾语,谓语,The flowers,are watered,by her,every day.,主语,谓语,宾语,一般现在时 主语+v.原形或单三 一般过去时 主语+v.过去式 一般将来时 主语+will+v.原形 现在完成时 主语+have/has+v.过分,主语+am/is/are+v.过分,主语+was/were+v.过分,主语 +will+be+v.过分,主语 + have/has+been+v.过分,1.一般现在时 am/is/are + v.过分,We clean the classroom every day. The classroom is cleaned by us every day.,We have lunch everyday. Lunch is had by us everyday.,He put on a coat. A coat was put on by him.,2.一般过去时 was/were+ v.过分,He made the kite yesterday. The kite was made by him yesterday.,3.一般将来时 will be + v.过分,They will plant trees tomorrow. Trees will be planted by them tomorrow. He will write a letter to his mother. A letter will be written to his mother by him.,4.现在完成时 has /have been + v.过分,Jim has finished the work. The work has been finished by Jim. We have eaten some bread. Some bread has been eaten by us.,课堂练习 （一）改写句子 1. We plant trees in spring every year. _ by us in spring every year. 2. She posted the letter yesterday. _ by her yesterday. 3. Mr Turner gave me a birthday present. _a birthday present by Mr Turner. 5. You may hand in your homework tomorrow. _ by you tomorrow. 6. She is going to write a letter. _ by her.,Trees are planted,The letter was posted,I was given,Your homework may be handed in,A letter is going to be written,1.The policeman catches the thief every year.,2.The policeman caught the thief last year.,3.The policeman has just caught the thief .,4.The policeman will catch the thief soon .,主动语态,被动语态,Sallys first train ride