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1、Unit5Whataretheshirtsmadeof?语法一般现在时的被动语态1.英语有两种语态：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 Cats eat fish.(主动语态）Fishiseatenbycats.(被动语态)2.一般现在时的标志词一般现在时常与often(经常),usually（通常）,sometimes（有时）,always（总是）,等频度副词连用，它们在句中的位置是实前系后情助后。另外everyday,everymorning,等，也是一般现在时的信息标志词。它们通常放在句首或句末。3.一般现在时分为主
2、动语态和被动语态：4.一般现在时主动语态的构成：一般现在时主动语态可以分成两类:一类是带be的，另一类是带实义动词的。带be的各种句式的构成(1)肯定句的构成是：主语+is/am/are+其他Sheisastudent.(2)否定句的构成是：主语+is/am/are+not+其他Sheisn’tastudent.(3)一般疑问句的构成是：Is/Am/Are+主语+其他?Issheastudent?肯定回答是：Yes，主语+is/am/areYes,sheis.否定回答是：No，主语+is/am/are+notNo,sheisn’t(4)特殊疑问句的构成是：疑问词+is/a
3、m/are+主语+其他？Sheisastudent?Whatisshe?带实义动词的各种句式的构成(1)肯定句的构成是:主语+动词原形/三单+其他ChinesepeoplespeakChinese.(2)否定句的构成是:主语+don’t/doesn’t+动词原形+其他Chinesepeopledon’tspeakChinese.(3)一般疑问句的构成是:Do/Does+主语+动词原形+其他?DoChinesepeoplespeakChinese?Yes,theydo.No,theydon’t肯定回答是:Yes,主语+do/does.否定回答是:No,主语+don’t/do
4、esn’t(4)特殊疑问句的构成是：疑问词+do/does+主语+动词原形+其他?？ChinesepeoplespeakChinese.WhatlanguagedoChinesepeoplespeak?5.一般现在时被动语态的构成：主语+is/am/are+动词过去分词+by短语+其他ChineseisspokenbyChinesepeople.(1)否定句的构成是:主语+is/am/are+not+动词过去分词+by短语+其他Chineseisn’tspokenbyChinesepeople.(2)一般疑问句的构成是:Is/Am/Are+主语+动词过去分词+by短语+其
5、他IsChinesespokenbyChinesepeople.Yes,itis.No,itisn’t肯定回答是：Yes，主语+is/am/are否定回答是：No，主语+is/am/are+not(3)特殊疑问句的构成是：疑问词+is/am/are+主语+动词过去分词+by短语+其他ChineseisspokenbyChinesepeople.WhoisChinesespokenby?(1)Peopleusestampsforsendingletters.(改为被动语态)Stampsforsendinglettersbypeople.(2)Weusearecorderin
6、ourEnglishclass.(改为被动语态)ArecorderinourEnglishclassby.(3)Oneoftheclassroomisoftencleaned.(改为否定句)Oneoftheclassroomoften.(4)Thiskindofpaperismadeofwood.(就画线部分提问)thiskindofpaperof?(5)Thisorphanistakencareofbyanoldlady.(改为一般疑问句)thisorphancareofbyanoldlady?(6)—Isitusedforcuttingthings?—.A.Yes,i
7、tisB.No,itisC.Yes,itisn’tD.No,itused(7)ThiskindofbikeinSuzhou.A.ismade B.makes C.ismaking D.made(8)___________teaplantsgrowninHangzhou?A.Do B.Did C.Is D.Are(9)Englishisusedmostpeopleintheworld.A.forB.asC.byD.to(10)Newcomputersallovertheworld.A.isusedB.areusingC
