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1、一般现在时一般现在时目录目录一 定义二 谓语形式三 句式变换四 课堂练习一一 定义定义一般现在时表示经常或习惯性的动作或一般性事实,也可表示现在的状态或主语具备的性格和能力。通常与副词every day（每天），always（总是）,usually（通常）,often（经常）sometimes（有时）,等时间状语连用。（1）表示事物或人物的特征、状态。The sky is blue.天空是蓝色的。Marys father is an English teacher. 玛丽的爸爸是一名英语老师。 （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
2、。 She plays sports every day. 她每天都做运动。（3）表示客观现实。The table has four legs.桌子有四条腿。There are 50 students in my class. 我们班有50个学生。（4）表示客观真理，科学原理，自然现象，等客观事实或格言谚语等。 The sun rises in the east every day. 太阳每天从东方升起。The earth goes around the sun. 地球绕着太阳转。（5）表示平日的喜好。I like bananas. We dont like vegetables.He lik
3、es ice cream. She doesnt like strawberries.二二 一般现在时谓语一般现在时谓语一般现在时谓语由动词原形表示,但主语为第三人称单数第三人称单数时,谓语动词要加S或ES,其变化规则如下: 动词三单形式的变化规则：1.（1）多数直接在动词词尾加-s. play plays like likes ask-asks work-works get-gets call-calls（2）以字母s, x, ch, sh或o结尾的动词，在词尾直接加-es.watch-watches wish-wishes do-does go-goes （3）以“辅音字母加 - y”结尾
4、的动词，要先变y为i再加-es.try-tries study-studies cry-cries fly-flies2.不规则变化：be- is have-has归纳：归纳：第三第三人称人称单数单数人称代词he, she, it是第三人称单数。He likes watching TV. 他喜欢看电视。 She has lunch at twelve. 她十二点吃午单个人名、地名或称呼作主语是第三人称单数。Han Mei likes salsd . 韩梅喜欢萨拉。 Beijing is in China. 北京在中国。 Uncle Wang often plays volleyball. 王叔
5、叔经常打排球。 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。 This book is yours. 这本书是你的。 That car is red. The cat is Lucys. 这只猫是露茜的。 不可数名词作主语时为第三人称单数。The milk（牛奶） is in the glass. 牛奶在玻璃杯里。 The bread is very small. 那面包很小。 当数字或字母作主语时，看作第三人称单数。 6 is a lucky number. 6是个吉利数字。 I is a letter. I是个字母。 EX2EX2 1.Tom o
6、ften_( get ) up at six in the morning 1.Tom often_( get ) up at six in the morning 2. The earth _( go) around the sun . 2. The earth _( go) around the sun . 3.Marys parent _(live ) in Beijing . 3.Marys parent _(live ) in Beijing . 4. She _ (draw) very well. 4. She _ (draw) very well. Ex1. 写出下列写出下列词词
7、的的单单三形式：三形式： look; go; give; fly; have looks; goes; gives; flies; has getsgoeslivesdraws三三 一般现在时的句子转换一般现在时的句子转换一般一般现现在在时时的构成：的构成： 肯定句：肯定句：主主语语is/am/are其它成分其它成分.He is an office worker.主主语语(除第三人称除第三人称单单数数)动词动词原形其它成分原形其它成分.I get up at six every day . 主主语语(第三人称第三人称单单数数)动词动词s/es 其它成分其它成分. My father usual
8、ly goes to work by bus.1)变一般疑问句: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)提到主语的前面 句式结构：句式结构： Am/Is/Are+主语其它成分主语其它成分?肯定肯定:Yes,主语主语+be.否定否定:No,主语主语+be+not.It is a tall tree. Is it a tall tree? Yes,it is./No,it is not. 注意：当句子中没有be动词，也没有情态动词时，变一般疑问句时，在主语前加助动词do (I, we, you,以及复数), does（第三人称单数she,he,it等）变成问句
9、；Do +主语主语(除第三人称单数除第三人称单数) 动词原形其它成动词原形其它成分分?肯定肯定:Yes,主语主语+do.否定否定:No,主语主语+do+not.The Greens often go swimming in summer? Do the Greens often go swimming in summer? Yes,the Greens do./No,the Greens do not.Does+主语（第三人称单数）动词原形其它主语（第三人称单数）动词原形其它成分成分?肯定：肯定：Yes,主语主语+does.否定：否定：No,主语主语 +does+not.The earth g
10、oes around the sun. Does the earth go around the sun ? Yes,the earth does./No,the earth does not.一般一般疑问疑问句句的的回答：回答：注意：一般用什么问就用什么来回答。但以下例外但以下例外：Is this a pencil? Yes,it is./ No, it isnt.Is that your backpack? Yes,it is./ No,it isnt.Are these your parents? Yes,theyre./ No, they arent.Are those Jims br
11、others? Yes,theyre./ No,they arent.1、He found some meat in the fridge.（变一般疑（变一般疑问句问句)_ he_ _ meat in the fridge?2、There was some orange in the cup.（变一般疑（变一般疑问句问句) _ there _ orange in the cup? DidfindanyWasany2）变否定句：在be动词或情态动词后面直接加not变成否定句. (be后not莫忘记)例：陈述句：She is my sister. 否定句 She is not my sister.
12、 陈述句：I can play soccer. 否定句 I can not /cant play soccer.注意：变否定句时，在主语后谓语动词前加助动词dont,doesnt变成否定句，切记：助动词后的动词则还原成动词原形。陈述句：We get up（起床） at 7:00 every morning.否定句We dont get up at 7:00 every morning.陈述句：She has a brother.否定句 She doesnt have a brother.3）特殊疑问句句句式式结构结构：疑疑问词问词is/am/are +主主语语(其它成分其它成分)？What t
13、ime is it now? 疑疑问词问词do +主主语语动词动词原形原形(其它成分其它成分)？When do you usually go to bed? 疑疑问词问词does+主主语语（第三人称（第三人称单单数）数）+动词动词原原形（其它成分）？形（其它成分）？Where does Jim do his homework on weekdays ?ExercisesIs he happy?Yes, he is happy.Is he strong?Yes, he is strong.What is it?It is a cat.Is she busy?Yes, she is busy. A
14、m I sad?No, I am happy.Is it very hot?Yes, it is very hot.He is happy.否定句否定句:一般疑问句一般疑问句:肯定回答肯定回答:否定回答否定回答:He is not (isnt) happy.Is he happy?Yes, he is.No, he isnt.I am happy.否定句否定句:一般疑问句一般疑问句:肯定回答肯定回答:否定回答否定回答:I am not happy.Are you happy?Yes, I am.No, I am not.疑问句要求把疑问句要求把BE 提前，第一人称变成第二人称。提前，第一人称变
15、成第二人称。They are in the classroom.否定句否定句:一般疑问句一般疑问句:肯定回答肯定回答: 否定回答否定回答:They are not (arent) in the classroom.Are they in the classroom?Yes, they are.No, they arent.肯定式否定式疑问式肯定否定回答I am a teacher. I am not a teacher.Am I a teacher?Yes, I am.No, I am not.He/she is a teacher.He/she is not a teacher.Is he/
16、she a teacher?Yes, he/she is.No, he/she isntIt is a cat.It is not a cat.Is it a cat?Yes, it is.No, it isnt.We/You/They are teachers.We/You/They are not teachers.Are we/you/they teachers?Yes, we/you/they are. No, we/you/they arent.动词动词be一般现在时的构成一般现在时的构成get up water the flowersI get up at 6:35 in the
17、morning.She waters the flowers.play footballwatch TVThey play football in the playground.He watches TV in the sitting-room.否定句否定句:一般疑问句一般疑问句:肯定回答肯定回答:否定回答否定回答:I get up at 6:35 in the morning.I do not (dont) get up at 6:35 in the morning.Do you get up at 6:35 in the morning?Yes, I do.No, I dont.对于实意动
18、词，疑问句要求：当主语是他对于实意动词，疑问句要求：当主语是他(he)，她，她(she)，它，它(it)时，句子前面加时，句子前面加DOES，并把动词恢复原形；当主语是其他，并把动词恢复原形；当主语是其他人称时，句前加人称时，句前加DO ，第一人，第一人(I/we) 称换第二人称称换第二人称(you)。They play football in the playground.否定句否定句: 一般疑问句一般疑问句: 肯定回答肯定回答:否定回答否定回答:They do not (dont) play football in the playground.No, they dont.Yes, the
19、y do.Do they play football in the playground?Ex1. 将下列各句从肯定式改为否定式将下列各句从肯定式改为否定式1.I talk to Peter because I like him.2.Kate comes from America. Kate works with Peter1.I am Chinese, and I am a student.They know each other.I dont talk to Peter because I dont like him.Kate doesnt come from America.Kate d
20、oesnt work with Peter.I am not Chinese, and I am not a studentThey dont know each other.1.Her parents live in Shanghai .否 : Her parents_ in Shanghai.疑 ： _ her parents_ in Shanghai?.2.You study English .否： You study English .疑： you study English ? 3. How often Tom football?A.is ,play B. do,play C. do
21、es, play D.does,plays dont liveDo livedoDo C1. Jim usually _ ( have ) lunch at home.2. Li Guanhua _ ( be ) twenty years old.3. How many students _ ( be ) there in your class?4. -_ she _ ( study ) hard? -Yes, she _.5. Lucy and lily _ ( not speak ) Chinese.6. My father _ ( not do ) morning exercises every day.7. She always _ ( wash ) her clothes on Sundays.8. _ your brother _ ( like ) playing football? No, he _.用所给动词一般现在时态填空用所给动词一般现在时态填空:
