初中英语八大时态讲解及练习.doc

一、一般现在时： 概念：经常、反复发生的动作或行为及现在的某种状况。 时间状语：always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays, etc. 基本结构：①be动词； ②行为动词 否定形式：①am/is/are+not; ②此时态的谓语动词若为行为动词，则在其前加dont,如主语为第三人称单数，则用doesnt，同时还原行为动词。 一般疑问句： ①把be动词放于句首； ②用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。 在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式，即常在动词原形后加-s或-es。 一、人称代词he, she, it是第三人称单数。如：He likes watching TV. 他喜欢看电视。She has lunch at twelve. 她十二点吃午餐。It looks like a cat. 它看起来像只猫。(口诀：I用am，you用are，is用于她他它，单数名词用is，复数名词都用are)二、单个人名、地名或称呼作主语；是第三人称单数。如：①Han Mei looks like her mother. 韩梅看起来像她的母亲。②Beijing is in China. 北京在中国。③Uncle Wang often makes cakes. 王叔叔经常做蛋糕。三、单数可数名词或this / that / the+单数可数名词作主语时，是第三人称单数。如：①A horse is a useful animal. 马是有用的动物。②This book is yours. 这本书是你的。 四、不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时，是第三人称单数。如：①Everyone is here. 大家到齐了。②There is something wrong with the watch. 这块手表有毛病。五、不可数名词作主语时为第三人称单数。如：①The milk is in the glass. 牛奶在玻璃杯里。②The bread is very small. 那面包很小。六、当数字或字母作主语时，看作第三人称单数。如：①6 is a lucky number. 6是个吉利数字。 单选1 Jenny ____ in an office. Her parents ____in a hospital.A work works B works work C work are working D is working work2 One of the boys_____ a black hat.A have B there is C there are D has3 We will go shopping if it____ tomorrow.A dont rain B didnt rain C doesnt rain D isnt rain4 He said the sun ____in the east and ____in the west.A rose; set B rises; sets C rises, set D rise; sets5 Wang Mei ____ music and often ____ to music.A like; listen B likes; listens C like; are listening D liking ;listen6 Jenny____ English every evening.A has study B studies C study D studied二、填空1 I can take Li Ming there when he _____ ( come) to visit.2 _____your sister_____(know)English?3Her home____ _____ ______(远离 )her school.4The pot_____(not look) like yours very much.5 Where _____you____(have)lunch every day?6 Who_____(想要 )to go swimming?7 ______she_____(do) the housework every day?