1、一般现在时讲解以及练习题语法讲解一:一般现在时一般现在时的讲解思路:一、 定义二、一般现在时常用时间状语、时间副词三、用法:1肯定句: 2. 否定句: 3疑问句:4.特殊疑问句:一般现在时的讲解以及练习题一、 定义:一般现在时表示经常或习惯性的动作,也可表示现在的状态或主语具备的性格和能力。 例:(1).表示事物或人物的特征、状态。The sky is blue.天空是蓝色的。 (2).表示经常性或习惯性的动作。I get up at six every day.我每天六点起床。 (3).表示客观现实。The earth goes around the sun.地球绕着太阳转。二、一般现在时常
2、用时间状语、时间副词In the morning/afternoon/eveningevery week (day, year, month)on Sundays (Monday, Tuesday)at night, once a week,. Always总是, usually通常, often经常, sometimes有时, never从不三、用法: 1肯定句:(1) 句中有be(am,is,are)和情态动词时,1 be动词时,主语是I时要用am,主语是you时要用are,其他用is。2 是情态动词时,后面的动词用原型3 例:I am a student.You are very bea
3、utiful.She is my best friend.He can do his homework by himself(2) 没有be(am,is, are)动词和情态动词:主语为第三人称单数(she ,he ,it )、单数可数名词、不可数名词的,动词要按规则加上s或es;主语是复数可数名词的肯定句,动词用原形。 例:She(He, It )likes fish. 她(他,它)喜欢鱼。(主语为第三人称单数) The table has four legs.桌子有四条腿。(主语为单数可数名词) Water boils at 100 degrees Celsius.水在100度沸腾。(主语
4、为不可数名词) They go to school every day .他们每天都去上学。(主语是复数可数名词的,动词用原形)注意的问题:第三人称单数以及第三人称单数时动词的变化规则在一般现在时中,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: 1、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。
5、2、单个人名、地名或称呼作主语;是第三人称单数。如: Han Mei looks like her mother. 韩梅看起来像她的母亲。 Beijing is in China. 北京在中国。 Uncle Wang often makes cakes. 王叔叔经常做蛋糕。 3、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: A horse is a useful animal. 马是有用的动物。 This book is yours. 这本书是你的。 That car is red. 那辆小汽车是红色的。 The cat is Lucys. 这
6、只猫是露茜的。 4、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: Everyone is here. 大家到齐了。 There is something wrong with the watch. 这块手表有毛病。 This is a pen. 这是一支钢笔。 That is an eraser. 那是一块橡皮擦。 5、不可数名词作主语时为第三人称单数。如: The milk is in the glass. 牛奶在玻璃杯里。 The bread is very smal
7、l. 那面包很小。 6、当数字或字母作主语时,看作第三人称单数。如: 6 is a lucky number. 6是个吉利数字。 I is a letter. I是个字母。 动词+s的变化规则 1一般情况下,直接加-s,如:cook-cooks, make-makes, runs gets likes collets takes plays climbs2以s. x. sh. ch. o结尾,加-es,如:guess-guesses, wash-washes, watch-watches, go-goes 3以“辅音字母+y”结尾,变y为i, 再加-es,如:study-studies 练习1
8、v 1Jenny _ in an office. Her parents _in a hospital.v A work; works B works; work C work; are working D is working; workv 2One of the boys_ a black hat.v A have B there is C there are D hasv 3Wang Mei _ music and often _ to music.v A like; listen B likes; listens C like; are listening D liking ; lis
9、tenv 4. Jenny_ English every evening.v A has study B studies C study D studiedv 5. The teachers _(speak) English in class.v 6. The teacher _(speak) English in class.2. 否定句: (1)句中有be动词(am , is , are )或情态动词(may , can , must , should)时,否定句在be动词和情态动词后加not, I am not a teacher. He can not fly . (2) 句中没有be
10、动词(am , is , are )或情态动词(may , can , must , should)时,主语为第三人称单数的否定句,在动词原形前加does + not (doesnt)。 He doesnt like cats. (3)句中没有be动词(am , is , are )或情态动词(may , can , must , should)时,主语为复数可数名词的否定句,在动词原形前加do + not (dont)。 They dont go to school on Sundays. 练习2v 1. The pot _(not look) like yours very much.v
11、2.Brian (not live) in China.v 3.The picture _ nice.v A. dont look B. is looked v C. doesnt look D. is lookingv 4. I have many books.(改为否定句)v 5.厦门不下雪。v 6.她不看新闻。v 7.我妈妈不喜欢吃肉3疑问句: (1)句中有be动词(am , is , are )或情态动词(may , can , must , should)时,一般疑问句将be动词或情态动词放在句首。 由肯定句变为一般疑问句的步骤: . 把be 动词(am , is , are )或情
12、态动词(may , can , must , should)提前。 .大写和小写的转换,句首的第一个字母要大写。 .句末要加问号。 例:肯定句:She is a student . 疑问句:Is she a student ? 肯定句: He can swim. 疑问句:Can he swim? . 疑问句的回答:用什么问就用什么来回答。 Is she a student ? Yes, she is . No,she isnt.Can you swim? Yes, I can . Yes, I cant. (2) 句中如果没有be动词(am , is , are )或情态动词(may , ca
13、n , must , should)时,主语为第三人称单数(she ,he ,it )、单数可数名词、不可数名词的疑问句要用does 来提问。即在句首加does,句子中原有动词用原形 例:Does he like Chinese? 他喜欢汉语吗? Yes, he does. 是的,他喜欢(汉语)。 Does a dog eat meat? 狗吃肉吗? No, it doesnt. 不,它不吃(肉)。 (3) 句中如果没有be动词(am , is , are )或情态动词(may , can , must , should)时,主语为复数可数名词的疑问句要用do 来提问。 Do you like
14、 monkeys? No, we dont. Do students study Englsih ? Yes , they do. 同时还要注意在肯定句变成否定句时,若是遇I/weyou, myyour. Someany. 句号问号(?)Does your cat eat any fruits? 你的猫吃水果吗?练习3v 1._she _ (do) the housework every day? v 2. Does Jenny (has) a good friend?v Yes, she _. (have) No. she _. (not have)v 3. you study Englis
15、h at school?v Yes, I _ (do).v 4._ your sister study English at school?v No, she_ (do) v 5. she lives in a small town near New York.v (改为一般疑问句)v 6.我每天都必须来吗?v 7.你爸爸每天早上都看报纸吗?4.特殊疑问句:特殊疑问词 + am/is/are + 相应的人称/ + 其他 do + 人称 + 动词原形 + 其他What/Where/Who/When/Which/why/how/whose + am/is/are + 相应的人称/名词 + 其他 What/Where/Who/When/Which/why/how/whos
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