一般现在时(精品文档)

1、一般现在时一.定义：1.一般现在时表示现在的状态1）I m twelve我.(十二岁）2)I have three baseballs（.我有三个棒球）2）I m in the classroom（我在教室里）3）Jack is from china.（杰克来自中国）4）Where is my bag?（我的包在哪儿）5）I am a student.(我是一名学生）2.一般现在时表示主语具备的性格和能力。1）She likes English.(她喜欢英语）2）I like playing basketball ball,but don t like playing我喜欢baseball.(

2、打篮球，但是我不喜欢打棒球）3）I don t like make friends我.不(喜欢交朋友）4）He can speak chinese他.(能够说英语）5）She can play the guitar.她(能够弹吉他）6）She can sing well.(她可以唱歌）3.一般现在时表示经常性和习惯性的动作。（通常和时间标志词连用：often经常， usually 通常， always总是， sometimes有时， never 从不， everyday 每天， on weekends在周末等）sometimes 有时1）she usually gets up at six o

3、她通常clock在六点.(钟起床）2）Lucy never takes a shower.露(西从不洗澡）3）We sometimes play basketball after school.(我们有时在放学后打篮球）4）I always do my homework on weekends(我总是在周末做作业）2一般现在时谓语动词的变化。一般现在时动词可分为两大类（ 1）含 be(is/am/are) 动词和情态动词 can 一类。该句子中如含 be动词， be 动词根据主语确定单复数。如含情态动词can,can后面的动词一律用原型。Eg.1. I am a girl.(我是女孩）2.Th

4、ey are students（.他们是学生）3.she can play chess她.(能够下象棋）4.They can sing.(他们能唱歌）(2)含实义动词的谓语动词。当主语为非第三人称单数，谓语动词用原型。当主语为第三人称单数，谓语动词用第三人称单数形式。Eg1.We often get up early in the morning.Eg2.My father often gets up early in the morning.（ 3）谈谈 “主语为三单，其后动词 s 添”在含实义动词的一般现在时中，当主语为第三人称单数时，谓语动词要用第三人称单数形式。可以简单叙述为 “主语为

5、三单，其后动词 s 添”。何谓第三人称单数？用一句话概括就是 “非你、非我、非复数 ”，如 he, she, it, my father, my mother, my sister, our Englishteacher, Tom, Mike, Liu Jia, China, my book, etc.Eg3.He sometimes goes to school by bike.Eg4.My father works in the hospital as a doctor.（ 4）动词第三人称单数变化规则动词第三人称变化的规则与可数名词复数变化的规则相同。规则一、一般在词尾加 -s。如： l

6、ooks, puts. reads, sees, skis等。规则二、以 -o, -s, -x, -sh, -ch 结尾的加 -es。如： goes, does, misses, passes, mixes, fixes, pushes, wishes, watches,teaches,等。规则三、以辅音字母加y 结尾的，变 y 为 i ，再加 -es。注意一定是辅音字母加 y 才变，若是元音字母加y，则直接加 -s。如： flyflies,trytries,fryfries,copycopiesbuybuys,enjoyenjoys,playplays,saysays,paypays四一般现

7、在时的句子转换当句子中有 be 动词或情态动词时，则把be 动词或情态动词(can,could 等等 )提到主语的前面变成一般疑问句;在 be 动词或情态动词后面加 not 变成否定句 .例：陈述句 ：She is a student.一般疑问句 Is she a student?否定句 She is not a student.陈述句： I can swim.一般疑问句 Can you swim?否定句 I can not swim.当句子中即没有be 动词，也没有情态动词时，则在主语前加助动词do (you,以及复数 ), does（单数 she,he,it）变成一般疑问句；在主语后谓语动

8、词前加助动词dont（I,you,以及复数 ),doesnt（单数she,he,it）变成否定句，助动词后的动词要变成动词原形。例：陈述句： We get up at 7:00 every morning. 一般疑问句 Do you getup at 7:00 every morning?否定句 We dont get up at 7:00 everymorning.陈述句： She has a little brother.一般疑问句Does she have a little brother?否定句She doesnthave a little brother.六、练习巩固1.写出下列动词

9、的三单形式go_catch_brush（刷） _ wash_do_like_have_ watch_drink _ fly_say_learn _eat_ read_ sing_ buy_study_stay _make _look _pass_carry _come_plant(种植 )_teach_buy_2.用括号内动词的适当形式填空。1. We often_(play) in the playground.2. He _(get) up at six oclock.3._you_(brush) your teeth every morning.4. What_ (do) he usua

10、lly_ (do) after school? 5.Danny_(study)English,Chinese,Maths, Science and Art at school.6. Mike sometimes _(go) to the park with his sister.7.At eight at night, she often_(watch) TV with his parents.8._ Mike_(read) English every day?9.Howmanylessons_yourclassmate_(have)on10. What time_his mother_(do

11、) the housework? 3.选择题()1. I _to school at 7:00 in the morning.A. goB. goingC. goes()2. They _books every day in the library.A.readsB. readC. reading()3. The monkey_ eating bananas very much.A.likeB. likesC. liking()4. My father _to read newspaper after supper every day.A.likeB. likesC. liking()5. I

12、 like watching TV, but my mother _like it.A. dontB. doesntC. does()6. _ your father drink milk every day?A.doB. areC. does（）7. We will go shopping if it_ tomorrow.don't rainB. didn't rainC.doesn't rainD. isn't rain（） 8. He said the sun _in the east and _in the west.A rose; setB rises

13、; setsC rises, setD rise; sets（） 9.Wang Mei _ music and often _ to music.A like; listenB likes; listensC like; are listening D liking ; listen（）10. Jenny_ English every evening.A has studyB studiesC studyD studied4.改错 (划出错误的地方，将正确的写在横线上)1. Is your brother speak English? _2. Does he likes going fishing? _3. He likes play games after class. _4. Mr. Wu teachs us English. _5. She don't do her homework on Sundays. _5.把下列句子变成一般疑问句（并作肯定和否定回答） 、否定句例： I like cooking. Do you like cooking? Yes, I do. No, I don't.I don't like cooking.1.My friends like