初中英语八大时态讲解及练习(全) |
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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:① be 动词;
②行为动词
否定形式:① am/is/are+not;
②此时态的谓语动词若为行为动词,则在其前加 don't, 如主语为第三人称单数,则 用 doesn't ,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:
① Han Mei looks like her mother. 韩梅看起来像她的母亲。
② Beijing is in China. 北京在中国。
③ Uncle 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:
① A horse is a useful animal. 马是有用的动物。
② This 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:
① Everyone is here. 大家到齐了。
② There 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:
① The milk is in the glass. 牛奶在玻璃杯里。
② The 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:
① "6" is a lucky number. "6" 是个吉利数字。
【练习】
一、
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 work 2 One of the boys_____ a black hat. A have
B there is
C there are
D has 3 We will go shopping if it____ tomorrow. A don't rain
B didn't rain
C doesn't rain
D isn't rain 4 He said the sun ____in the east and ____in the west. A rose; set B rises; sets C rises, set D rise; sets 5 Wang Mei ____ music and often ____ to music. |
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