七级英语上册 Unit 2 This is my sister单元语法聚焦二 （新版）人教新目标版.doc

this is my sister 指示代词和单数句与复数句的转换1this is my sister.这是我的姐姐/妹妹。2those are my parents.那是我的父母。3these are my brothers.这些是我的兄弟们。4this is my friend jane.这是我的朋友简。5thats my grandfather.那是我的祖父。6whos she？她是谁？shes my sister.她是我的姐姐/妹妹。7whos he？他是谁？hes my brother.他是我的哥哥/弟弟。8whore they？他们是谁？theyre my grandparents.他们是我的祖父母。1指示代词(1)定义：指示代词是用来指示或标识人或事物的代词。指示代词表示“这个”、“那个”、“这些”、“那些”等含义。指示代词有名词和限定词的功能。常见的指示代词有_，_，_，_等。(2)用法：指示代词可在句中作主语、宾语和定语。如：_ is a desk.这是一张书桌。(作主语)_ boy is my friend.这个男孩是我的朋友。(作定语)this和these表示所指的人或物距离说话人比较近，而that和those表示所指的人或物距离说话人比较远。如：_ is an orange and _ is an apple.这是一个橙子，那是一个苹果。从数上来看，this和that指单数， these和those指复数。如：_ is my mother.这是我妈妈。_ are my parents.这是我的父母。this和that用作电话用语时，this指自己，而that指对方。如：hello, _ is mary. is_ xiaoli?你好！我是玛丽。你是小丽吗？当指示代词在疑问句中作主语时，其答句主语的变化：this, thatit; these, thosethey。如：is_ a book？这是一本书吗？yes, _ is.是的，它是。are_ your friends?那些是你的朋友吗？yes, _ are.是的，他们是。2单数句与复数句的转换(1)将单数句中的指示代词、人称代词、名词及be动词等变为复数形式this/that is a ruler. these/_ are rulers.she is in china. they are in china.im a boy. we _ _(2)将单数句中的不定冠词a, an去掉(某些固定搭配除外)。it is an apple. _ _ apples.that is a pencil. _ _ pencils. (3)单数句中的形容词、定冠词、副词、疑问词、介词等保持不变。the pen is red. the pens are red.what color is the jacket? what color are the jackets?注意 名词作定语时，一般用单数形式，被修饰的名词变复数时，一般情况下，作定语用的名词不需要变为复数形式，但由man或woman作定语修饰的名词变成复数时，两部分皆要变为复数形式。如：that is an orange quilt. those are _ _she is a woman doctor. they are _ _his friend is a man teacher. his friends are _ _.写出下列单词的复数形式1this_2friend _3name _4is _5family _6that _7key _8boy _9she _10parent _.单项填空 ()1._ my friends.athiss bthatscthese are dthese is()2.look at the girls! _ are my sisters.athose bthese cyou dthey()3.this _ my sister and those _ my friends.ais; are bare; iscare; are dis; is()4.hello, mary. _ my friends, jack and jim.athis is bthat iscthese are dit is()5.are _ her _？athis; parent bthis; parents cthese; parent dthese; parents()6.im looking for my key, but i cant find_ait bonecthis dthat()7.is this your classmate?_. its my brother. ayes, it is byes, he is cno, it isnt dno, she isnt()8.are those your erasers?_ayes, it is bno, it isnt cyes, these are dno, they arent.用指示代词this, that, these或those填空1whats _ over there?its a bus. 2are _ your pencils?no, they arent. my pencils are here. 3are_ your rulers?yes, they are. i put them here. 4hello. _ is mary. is _ jack?.根据汉语意思完成句子1他们是我的父母。_ _ my _2那些是你的朋友们吗？_ _ your friends?3那些钥匙是什么颜色的？what _ _ those _？4她是我的姐姐。_ is my _. 5“这是你的弟弟吗？”“是的，他们是。”_ _ your _？yes, _ _. .按要求完成下列各题1this is a red jacket. (改为复数句)_ _ red _2those are oranges. (改为单数句)_ _ _ orange.3are these erasers？(作否定回答)no, _ _4they are girls. (改为单数句)_ _ _ _5your, is, sister, lily(连词成句)_?.根据汉语提示完成短文this is a 1._(照片) of mr. blacks 2._(家庭). the man in the middle is mr. black, the 3._ (父亲). the woman is the 4._(母亲). they have a son and a 5._(女儿). the son is behind mr. black. his 6._(名字) is jack. he is 10. kate is jacks 7._(妹妹). she is 8._(九岁). jack is in grade 9._(五) and kate is in grade four. they are 10._(好的) students.详解详析【语法探究】1(1)this; that; these; those(2)this; thisthis; thatthis; thesethis; thatthis; it; those; they2(1)those; are boys(2)they are; those are(3)orange quilts; women doctors; men teachers【实战演练】.1.s4are5.families6.those7keys8.boys9.they10.parents.1.c由后面的“friends”可知用these are。2d代替前文提到的复数名词用they。3a考查be动词的用法。this表示单数，用is; those表示复数，用are。4c5.d6.a7c指示代词this在疑问句中作主语时，其答句的主语用it，故排除选项b和d。根据“its my brother.”可知选c。8d根据题干中的those可排除选项a和b。回答these和those的一般疑问句时，应用代词they来作答，故选d。.1.that2.those3.these4this; that.1.they are; parents2.are those3color are; keys4.she; sister5are the