be动词、助动词、情态动词用法PPT文件格式下载.ppt

1、4）特殊疑问句：疑问词+be+主语（其他成分）+？Whats your name?Whos that?,be的用法口诀：我用am，你用are,is跟着他、她、它。单数is，复数are，勿忘be的三变化。变疑问，往前提，句末问号莫丢弃。变否定，更容易，be后not莫忘记。疑问否定任你变，句首大写莫迟疑。一般现在时中be动词的用法相对简单，上面的口诀基本包括了be动词的各种问题。,Exercises,用am/is/are填空1、She（）a student.2、His jacket（）on the table.3、We（）family.4、-How（）you?-I（）fine,thanks.5、J

2、ack and I（）good friends.6、（）she a student?7、（）you a teacher?,I _ an English teacher now.They _ glad to see each other.Helen and Nancy _ good friends.The little dog _ two years old this year.Look,there _ lots of grapes here.There _ a sign on the chair on Monday.Today _ the second of June.Yesterday _

3、the first of June.It _ Childrens Day.All the students _ very excited.The sky blue.I a boy.There _（be）some water in the bottle.,am,are,are,are,am,was,is,is,is,is,is,was,were,16.The black gloves _ for Su Yang.17.This pair of gloves _ for Yang Ling.18.The two cups of milk _ for me.19.Some tea _ in the

4、glass.20.Gao shans shirt _ over there.21.My sisters name _Nancy.22.This _ not Wang Fangs pencil.23._ David and Helen from England?24.There _ a girl in the room.25.There _ some apples on the tree.26._ there any kites in the classroom?27._ there any apple juice in the bottle?28.There _ some bread on t

5、he plate.29.There _ a boy,two girls,three men and ten women in the park.30.You,he and I _ from China.,are is are is is is is Are is are Are Is is are are,句型转换,1.They are doing housework.（分别改成一般疑问句和否定句）2The students are cleaning the classroom.（改一般疑问句并作肯定和否定回答）3.Tom is under the tree.（变为否定句）,Are they

6、doing housework?Yes,they are./No,they arent.They arent doing housework.Are the students cleaning the classroom?Yes,they are./No,they arent.Tom is not under the tree.,4.The skateboards are black.（改成否定句）5.Its branches are long.（意思不变，改否定句）6.She is always a good student.（改为一般疑问句，作否定回答）.,The skateboards

7、are not black.Its branches are not short.Is she always a good student?No,she isnt.,助动词do/does,什么是助动词？顾名思义，助动词就是帮助动词的，而本身没有实际意义的动词，是具有雷锋精神的词汇。助动词do的三种变化形式 do 第三人称单数时使用的does 过去式did,do的基本用法：1 构成否定句 2 构成一般疑问句及回答 3 构成特殊疑问句do的各种形式 肯定式：do 否定式：dont/do notdo用在第一人称单复数、第二人称单复数和第三人称复数作主语，且时态为一般现在时的句子，如：I like t

8、hat dress.否定句：I dont like that dress.一般疑问句及回答：-Do you like that dress?-Yes,I do/No,I dont.,特殊疑问句：Which dress do you like?does 肯定式：does 否定式：doesntdoes用在第三人称单数作主语，且时态为一般现在时的句子当does出现时，句子中用动词原形。如：She likes that dress.否定句：She doesnt like that dress.一般疑问句及回答：-Does she like that dress?-Yes,she does./No,sh

9、e doesnt.特殊疑问句：Which dress does she like?,Exercises,按要求改写句子：1.Ithinkheisveryold.（否定句）I_thinkhe_veryold.2.Thissignmeans“Nosmoking”.（改为特殊疑问句）What_thissign_?3.Myplanthastwogreenleaves.（就划线部分提问）_ _ _ _ _ _plant _?4.I love my parents.（改为一般疑问句）_?,dont,is,does,mean,How many green leaves does yourhave,Do yo

10、u love your parents,用动词的适当形式填空。1、They_（read）Englishinthemorning.2、She_（like）hercoatverymuch.3、Heusually_（watch）TVat7:00intheevening.4、Thegirl_（fly）akiteeveryspring.5、He_（get）upat7oclockinthemorning.6、Themanandthewomanalways_（listen）totheradio.7、Lucy_（notsing）verywell.8、I_（notgo）toschoolbybuseveryday

11、.9、Daming_（run）araceonMondays.10、We_（do）highjumpwithourfriendsatschool.,11、Thelittlegirls_（read）Englishintheevening.12、They_（like）hercoatverymuch.13、Sheusually_（watch）TVwithhersisterintheevening.14、Thegirlsandtheboys_（fly）akiteeveryspring.15、We_（get）upat7oclockinthemorning.16、Mybrotheralways_（listen

12、）tomusicinhisroom.17、LucyandLily_（notspeak）Chinese.18、I_（notgo）toschoolbybuseveryday.19、Daming_（eat）ahamburgeronMondays.20、We_（play）gameswithourfriendsatschool.,注意：一般现在时态句的否定句和一般疑问句，当句子中有动词时，我们就用助动词do或是does.如果没有动词时，我们就选用is或是are，也就是“Be”除了原形的“be”之外，还有另外七种形式：am,is,are,been,being,was,were.助动词后接动词原形。,We

13、_（not watch）TV on Monday.Nick _（not go）to the school on Sundays._ your parents _（read）newspapers every day?,dont watch,doesnt go,Do,read,情态动词,情态动词有一定的意义 无人称和数的变化 除了ought和have通常不带to，后加动词原形 表示说话人的语气或情绪（请求、警告、命令等）,特点：,情态动词,will/would,can/could,have/had to,may/might,ought to,shall/should,must,1.can/coul

14、d 1）表示能力 I can speak English and French.He can do it himself.2）表示事物一时的特征，理论上的可能性 Its always warm here,however,sometimes it can be very cold.Even an experienced teacher can make mistakes.3）表示允诺，许可-Can I eat some cakes,mom?-Yes,you can./No,you cant.You can have my seat.I am going now.,4）表示推测-Someone is knocking at the door.Who can it be?Can it be Tony?-No,it cant be him.He is in Beijing now.No,he couldnt be a thief.Could是can的过去式，用法与can类似，常用于过去时中；could 用在现在时中表示表示委婉、客气，相当于can。-Could you help me?/Could you do me a favor?-Sure./Certainly.,2.may和might 1）表示请求或许可-May/Might I come