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会宁县新添回民中学 学案编号:QYY2014031410 主备人: 参与人: 审核: 审批: 班级: 组名: 姓名:
一般现在时时态专练
一般现在时是英语中应用最广泛的时态之一,是初中英语语法重点。它表示1)经常性、习惯性的动作或存在的状态。e.g. I go to school on foot. He is very busy now. 2)表示主语的特征、性格、能力、爱好等。e.g. He can swim. I work hard. I like watching TV. 3)表示客观真理 e.g. There are seven days in a week. The moon moves round the earth.
其结构按正常语序,即“主语+谓语+其它”,有时为了起强调作用,时间状语也可提前.
其句式变化可分为两种情况 1)表示动作, 非三单作主语的,变否定句须在动词前加助动词don’t;变一般疑问句须在句首加助动词do。 E.g. 1.They have lunch at 12:00. 2.They don’t have lunch at 12:00. 3. Do they have lunch at 12:00? 2)三单做主语的,变否定句须在动词前加助动词doesn’t;变一般疑问句须在句首加助动词does。
E.g. Jenny speaks English very well.
Jenny doesn’t speak English very well.
Does Jenny speak English very well?
含有be动词的要在be上做变化.
1.E.g. Danny is a good student.2.Danny isn’t a good student.3. Is Danny a good student?
时间状语(时态标志): In the morning/afternoon/evening ;every week (day, year, month…)
on Sundays (Monday, Tuesday…) at night, once (twice ,three times )a week,.
Always总是, usually通常, often经常, sometimes有时, never从不等频率副词,。
学生常见错误如下:
一、be动词与行为动词同时出现在句子中
例:We are plant (plant) the trees in spring.
解析:学生往往会用汉语的思维方式去翻译,就成了“我们是在春天植树”。这是学习英语最忌讳的,要看语法是不是正确,在英语中,be是表状态,do是表动作,两种动词不能同时出现在句子中,可记住如下口诀:“英汉语言有差异,be 、do不能放一起,仔细琢磨细分析,语法千万要牢记。”
自我检测:
(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 Bdidn't rain Cdoesn't rain Disn'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.
A like; listen B likes; listens C like; are listening D liking ; listen
6 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?
8 Jenny and Danny usually______(play) games in the afternoon .
二、单三人称形式易出错
例:1 He plaies (play) football very well.
2 Danny gos (go) to school at 7:10.
解析:1以辅音字母加y结尾的动词变单三人称形式才能把y换成i再加es;2与名词变复数不同,变单三人称形式以o结尾的词要加es.
三、在句式变换时易出错
例:1 Does Jenny has (has) a good friend?
2 Brian doesn’t lives (not live) in China.
解析:单三人称做主语的一般现在时做句式变化时,可记住如下口诀:“见助动,用原形”。此口诀也可推广用于一般过去时态中。e.g. He didn't go home yesterday.
四、对do的理解易出错
例:We don’t (not do) our homework in the afternoon.
解析:do是一个比较难理解的词,它有三个含义: a)是所有行为动词的总称;b)是助动词,无实义;c)是一个具体的行为动词“做,干”。此句中给出的do指“做,干”,not指把此句变为否定句,故须在do前加助动词don’t。
五、对主语的数判断有误
例: Li Ming with me are (be) in Beijing.
解析:表面一看是“我和李明两个人在北京”,但with在此做伴随状语,不能做主语,故用is.
表示通常性、规律性、习惯性的状态或者动作(有时间规律发生的事件)的一种时间状态
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。但有些同学们对于哪些主语是第三人称单数还不十分清楚,现归纳总结如下:
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:
①"6" is a lucky number. "6"是个吉利数字。
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