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，①be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 beautiful.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：①She（He, It ）likes fish. 她（他，它）喜欢鱼。
（主语为第三人称单数）②The table has four legs.桌子有四条腿。
(主语为单数可数名词)③Water boils at 100 degrees Celsius.水在100度沸腾。
（主语为不可数名词）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。
2、单个人名、地名或称呼作主语；是第三人称单数。
如：①Ha n 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。
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：①A horse is a useful animal. 马是有用的动物。
②This book is yours. 这本书是你的。
③That car is red. 那辆小汽车是红色的。
④The cat is Lucy's. 这只猫是露茜的。
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：①Everyone is here. 大家到齐了。
②There is something wrong with the watch. 这块手表有毛病。
③This is a p en. 这是一支钢笔。
④That is an eraser. 那是一块橡皮擦四动词+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-goes3．以“辅音字母+y”结尾，变y为i, 再加-es，如：study-studies 练习1❖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．Wang Mei ____ music and often ____ to music.❖ A like; listen B likes; listens C like; are listening D liking ; listen❖ 4. Jenny____ English every evening.❖ A has study B studies C study D studied❖ 5. The teachers ____(speak) English in class.❖ 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( , can , 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动词(am , is , are )或情态动词( can , should)时，主语为第三人称单数的否定句，在动词原形前加does + not (doesn’t)。
He doesn’t like cats.(3)句中没有be动词(am , is , are )或情态动词( can , , should)时，主语为复数可数名词的否定句，在动词原形前加do + not (don’t)。
They don’t go to school on Sundays.练习2❖ 1. The pot _____(not look) like yours very much.❖ 2.Brian (not live) in China.❖ 3.The picture ____ nice.❖ A. don’t look B. is looked❖ C. doesn’t look D. is looking❖ 4. I have many books.(改为否定句）❖5没下雪。
❖ 6.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( can , , 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：①. 把be 动词（am , is , are ）或情态动词( can , should)提前。
②.大写和小写的转换，句首的第一个字母要大写。
③.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 isn’t.Can you swim? Yes, I can . Yes, I can’t.(2) 句中如果没有be动词(am , is , are )或情态动词( can , 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 doesn’t. 不，它不吃(肉)。
(3) 句中如果没有be动词(am , is , are )或情态动词(can , must , )时，主语为复数可数名词的疑问句要用do 来提问。
Do you like monkeys? No, we don’t.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/we→you,my→your. Some→any.句号→问号（？）Does your cat eat any fruits? 你的猫吃水果吗?练习3❖ 1.__she __ (do) the housework every day?❖ 2. Does Jenny (has) a good friend?❖Yes, she ____. (have) No. she ___. (not have)❖ 3.——you study English at school?❖Yes, I ____ (do).❖ 4.____ your sister study English at school?❖No, she____ (do)❖ 5. she lives in a small town near New York.(改为一般疑问句）6.我每天都必须来吗？❖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/whose…+ do/does + 相应的人称/名词+ 动词原形+ 其他❖Who am I ? 我是谁？❖Why is your mother so busy?❖你妈妈为什么这么忙？❖How are you? /is your dad? 你好吗?你爸好吗？❖What does he do everyday?❖他每天做什么？❖When does your father go to work every day?❖你爸爸每天什么时候去上班？❖Who studies very hard in our class?❖我们班谁学习非常努力？❖Which computer games do you like?❖你喜欢那种电脑游戏？练习题4❖ 1. Where ___you___ (have) lunch every day?❖ 2. Who_____(想要)to go swimming?❖ 3. why _____ Tom absent today? (be)❖ 4.I often play football on Friday afternoon? 就划线部分提问❖ 5. Lily waters the flowers everyday.❖ 6.为什么她每天都那么早去上学？❖7.他带的是谁的眼镜？❖8.你是怎么把英语学的这么好的？一般现在时课后巩固练习题一、按照要求改写句子1．This is my pencil ? (变一般疑问句)2.These red socks are Kate’s . (变一般疑问句)3.I want to buy a big green bag . (变特殊疑问句 )4.Mary does not have any books . (变肯定句)5. The clothing shop is on sale . (变为否定句)6. She likes the black bag very much . (变为否定句)7. I buy the pants for only 50 Yuan. (用she改写句子)8. It’s an English dictionary . (对画线部分提问)9. Lily and Lucy are fifteen years old now . (对画线部分提问)10. Her dog is 2 years and 5 months old . (变为否定句)11. I usually get up at seven o’clock . (用he改写句子)12. He often has hamburger and apples for dinner . (变为一般疑问句)13. My family always like thrillers . (对画线部分提问)14. Jane’s sister wants to see the comedy . (变为一般疑问句)15. Maria and Jack come to this school on Monday .(对画线部分提问)三、完成句子1. 他每天六点钟起床。