英语中的be动词也叫系动词.ppt

Units 1-5 Units 1-5 Grammar,Grade 7 （上）,Be动词,英语中的be动词也叫系动词，具体体现形式有am, is, are 三种。其用法可以用一个儿歌来概括：,我(I)后am, 你(you)后are; is 管着他(he)、她(she)、它(it); 单数is, 复数are； 肯定变否定，请把not加； 若要变疑问，尽管往前拉。,请用be动词的适当形式填空：,I _ a girl. My name _ Mary. I _ in Class 2, Grade 7. I _ 12 years old. Here _ my family photo. Look! These _ my parents and those _ my grandparents. This boy _ my brother. He _ 15 years old now. That _ my cat, Mimi. It _ very lovely（可爱）.,am,am,am,is,is,is,is,is,are,are,is,请翻译下列句子：,1、这是一支铅笔。 2、那不是你的双肩背包。 3、他是我叔叔。 4、他们是我的表兄弟。 5、这不是她的手表。,This is a pencil.,That isnt your backpack.,He is my uncle.,They are my cousins.,This isnt her watch.,6. 我最喜欢的科目是英语。,My favorite subject is English.,请翻译下列句子：,1、你是Bob 吗？是的，我是。 2、这是你妈妈吗？不，她不是。她是我姑姑。 3、那些是你的书吗？是的。 4、你的钢笔在那儿？ 5、这是什么？,Are you Bob? Yes, I am.,Is this your mother? No, it isnt. She is my aunt.,Are those your books? Yes, they are.,Where is your pen?,Whats (=What is) this?,你能总结出be动词的各种句式吗？ 肯定句： 否定句： 一般疑问句： 肯定答语： 否定答语： 特殊疑问句：,主语+be(am, is, are)+其它.,主语+be(am, is, are) +not +其它.,Be(Am, Is, Are) +主语+其它？,Yes, 主语（代词）+be(am, is, are).,No, 主语（代词）+be(am, is, are) +not.,疑问词+be(am, is, are) +其它？,请根据要求改变句型: This is a ruler. （改为否定句） Im a student. （改为一般疑问句并肯定回答） These are her things.（改为否定句） That is my sister. （改为一般疑问句并否定回答）,This isnt a ruler.,isnt =is not,Are you a student? Yes, I am.,These arent her things.,arent = are not,Is that your sister? No, it isnt.,请继续做下面的题目： 5. Those are erasers. （改为一般疑问句并肯定回答） 6. This is an orange. （提问划线部分） 7. These are apples. （提问划线部分） 8. My notebook is on the desk. （提问划线部分）,Are those erasers? Yes, they are.,Whats this?,Whatre (=What are) these?,Where is your notebook?,名词n.,名词单数变复数的规则,1、一般的名词在词尾直接加s.,2、以s, x, sh, ch结尾的名词在词尾加es.,3、以o结尾的名词，有的加s, 有的加es.,4、以辅音字母+y结尾的名词，要变y为i，再加es。,5、不规则变化,child,man,woman,children,men,women,写出下列名词的复数,boy key family dictionary party city documentary strawberry watch calss speech bus Wish tomato,1.boys 2.keys 3.families 4.dictionaries 5.parties 6.cities 7.documentaries 8.strawberries 9.watches 10.classes 11.speeches 12.buses 13.Wishes 14.tomatoes,明察秋毫：观察下列句子单数变复数的规律,This is a pen. That is an eraser. It is a dictionary.,These are pens.,Those are erasers.,They are dictionaries.,总结一下吧：,this that he/she/it am/is a/an 名词,these,those,they,are,省去,变复数,一显身手：把下列句子变为复数,This is my sister. It is a watch. That is an orange. What is this? Its his key.,These are my sisters.,They are wateches.,Those are oranges.,What are these?,Theyre his keys.,请把下列单数句子变为复数,1. This is an English dictionary. 2. He is my friend. 3. Is it a clock? 4. Is this your pen? No, it isnt. 5. Is that his backpack? Yes, it is. 6. I am a student. 7. Whos that?,These are English dictionaries.,They are my friends.,Are they clocks?,Are these your pens? No, they arent.,Are those his backpacks? Yes, they are.,We are students.,Who are those?,名词所有格：表达属于某人所有即“某人的”时，要用名词所有格。单数名词的所有格在该词后加s，以s结尾的复数名词的所有格，只加。,1、这儿是我妈妈的商店。 Here is _ _ store. 2、Cindy是你姐姐的好朋友。 Cindy is _ _ good friend. 3、这是李明的新书包。 This is _ new backpack. 4、Helen的生日在十月。 _ bithday is in October.,my mothers,your sisters,Li Mings,Helens,5、九月十日是教师节 September 10th is _ Day. 6、儿童节是六月一日。 _ Day is June 1st. 7、这些是Amy 和Sandra的书。 These are _ and _ books. 8、史密斯太太是Jim 和 Mary 的妈妈。 Mrs. Smith is _ and _ mother. 9、我朋友的爱好是弹吉他。 _ _ hobby is playing the guitar.,Teachers,Childrens,Amys Sandras,Jim Marys,My friends,代词pron.,人称代词:指代“你，我，他”、“你们，我们，他们”。发出动作时，用主格；做动词或介词宾语时，用宾格。,me,us,you,you,him,she,it,them,物主代词：表示某人的,our,your,their,her,指示代词：,this-these,that-those,my,your,his,its,Mary works in a store. _ likes _ work very much. Jim and _(me) are in the same class. _(our) go to school at 7:30. I have many friends. Some of _(they) like playing tennis. Can you help _(we)? I have two good friends. _(they) names are Jim and Tom. Nick is a boy. _ is from America. _ has a happy family. _ parents work in China. _ teach English in a school. Nick has a sister. _ name is Kim. _ is only 3 years old.,She,her,I,We,them,us,Their,He,He,His,They,Her,She,用随给词的适当形式填空:,_ (Tom)father is a player. _ (I) pen is in the bag. _ (our) go to school at 7:30. _ (he) favorite color is y