人教版七年级英语上册unit2_sectionA__第一课时_课件.ppt

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1、教学重点、难点:本单元的重点教学项目是介绍家人、亲属和一般名词的单、复数形式。难点是区分名词的单、复数形式与be动词、指示代词(this、that、these、those)之间的关系。介绍他人介绍他人This is my mother.That is my father.These are my brothers,Those are my friends.询问他人是谁询问他人是谁Who is he ?He is my brother.This is a key.These are keys.That is a pen.Those are pens.this that These thoseth

2、is that 观察并思考复数复数复数复数这个这个那个那个这些这些那些那些these those这个这个那个那个这些这些这个这个那个那个那些那些这些这些这个这个那个那个关于指示代词关于指示代词英语中指示代词有英语中指示代词有4个。即个。即this（这个）（这个）these（这些）（这些）that（那个）（那个）those（那些）（那些）this these用来指更接近说话人的人和事。用来指更接近说话人的人和事。That those用来指离说话人更远的人用来指离说话人更远的人和事和事例句：例句：This man is a teacher. That man is a doctor. These

3、are your pencils. Those are my pens.(3)放在一起的东西，先说放在一起的东西，先说this，再，再that。This is a pen. That is a pencil.巧记妙用巧记妙用 巧记巧记this和和thatThis，This靠近我，靠近我，That，That远离我远离我This单数单数these复，复，that复数对复数对those。两样物品一起说，先说两样物品一起说，先说this，再，再that。the把把this，that替，请你务必牢牢记。替，请你务必牢牢记。（4）在问句）在问句Whats this/that?中，除非特别强调，一般都用中，

4、除非特别强调，一般都用Its的句式来回答。的句式来回答。Whats this?这是什么？这是什么？ Its a green jeep. 是一辆绿色的吉普车是一辆绿色的吉普车Whats that?那是什么？那是什么？ Its an old bus. 是一辆旧的公共汽车。是一辆旧的公共汽车。（5）this is不能缩写，而不能缩写，而that is可以缩写成可以缩写成thats.This is a crayon. 这是蜡笔。这是蜡笔。 Thats a pencil. 那是铅笔。那是铅笔。These are books.Those are books ,too.These are my eraser

5、s.Those are your pencil sharpeners.This is a key.These are keys.This is a pencil. These are pencils.That is a ruler.Those are rulers.观察并思考如何把下列句子单数变成复数：观察并思考如何把下列句子单数变成复数：She is a girlThey are girlsbe动词表示动词表示“是是”，有三个：，有三个：am ,is, are.我（我（I）用）用(am),你你(you )用用(are),is连着他连着他(he)、她、她(she)、它、它(it),单数跟单数跟

6、is 后，复数全部都用后，复数全部都用are.单数复数thisthatis/amthesethoseare1.一般直接加一般直接加s， 如如penpens,erasererasers,bookbooks. 2.以以o.s.x.sh.ch.结尾的加结尾的加es, 如如watch-watches. 3.以辅音字母加以辅音字母加y结尾的，变结尾的，变y为为i再加再加es, 如如family-families,dictionary-dictionaries. 4.以以f或或fe结尾的变结尾的变f或或fe为为v再加再加es， 如如knife(小刀小刀)knives. 5.部分部分以以“o” 结尾加结尾加

7、es 如如potatoes (土豆）土豆） tomatoes（西红柿）（西红柿） 其他加其他加s, 如如photo-photos可数名词复数：6.不规则不规则 如如man (男人）男人） men woman（女人）（女人）-womenchild（孩子）（孩子）-children sheep (绵羊绵羊)-sheep deer（鹿）（鹿）-deer把下列单数名词变成复数：把下列单数名词变成复数：pencil baseball game notebook ring rulerpencils baseballs games notebooks rings rulerswatch fish bus b

8、ox potato tomato Watches fishes buses boxes potatoes tomatoesfamily baby partyfamilies babies partiesboy class knife life dictionary photo boys classes knives lives dictionaries photos把下列句子单数变成复数：把下列句子单数变成复数：1.This is a book.2.That is an orange.3. This is my pencil .4.That is her quilt.5.Is this you

9、r watch?6.Is that his dictionary?7.It is my map.8.Thats his ring. These are books.Those are oranges.These are quilts.Those are her quilts.Are these your watches?Are those his dictionaries?They are maps. Those are his rings.祖父祖父/外祖父外祖父grandfathergrandmothergrandparentfathermotherparentbrothersisterfr

10、iendthesearethose祖母祖母/外祖外祖母母祖父祖父/母，外祖父母，外祖父/母母父亲父亲母亲母亲父亲或母亲父亲或母亲兄兄/弟弟姐姐/妹妹朋友朋友这些这些是是那些那些一般疑问句：一般疑问句：Is this your mother ?Are these your brothers ?确认人物或物品确认人物或物品Yes, it is. No, it isntYes, they are. No, they arentIs he your brother ?Yes, he is. No, he isnt观察并思考如何变一般疑问句：观察并思考如何变一般疑问句：This is my mother

11、.Is this your mother ?These are my brothers.Are these your brothers ?He is your brother .Is he your brother ?总结总结: 有有be动词把动词把be动词提到句首动词提到句首一般疑问句的肯定和否定回答：一般疑问句的肯定和否定回答：Is this your mother ?Are these your brothers ?Yes, it is. No, it isntYes, they are. No, they arentIs he your brother ?Yes, he is. No,

12、 he isnt总结：总结： 1.答语中的代词必须是_代词，人称人称he 、she、 it、 they、 we、 I不能用不能用these不能用不能用this和问句中的主语保和问句中的主语保持一致持一致一般疑问句的肯定和否定回答：一般疑问句的肯定和否定回答：Is this your mother ?Are these your brothers ?Yes, it is. No, it isntYes, they are. No, they arentIs he your brother ?Yes, he is. No, he isnt总结：总结： 2.答语中的动词通常和_保持一致问句中的首位动

13、词问句中的首位动词1 My telephone number is 8947368.4 Those are my friends.2 That is his father.5 Look at that boy, he is my brother.3 These are my pencil cases.Is your telephone number 8947368 ?Is that his father ?Are these your pencil cases ?Are those your friends ?Look at that boy, is he your brother ?变为疑问

14、句并做肯定和否定回答：变为疑问句并做肯定和否定回答：1.This is my clock.2.That is your ring.3.These are her books.4.Those are his oranges.5.Those are my backpacks. Is this your clock? Is that your ring? Are these her books?Are those his oranges?Are those your backpacks?翻译下列句子翻译下列句子1。 这是你的姐姐吗？是的。这是你的姐姐吗？是的。2。那是他的哥哥吗？不，不是。那是他的哥

15、哥吗？不，不是。3。她是你的奶奶吗？不是的。她是你的奶奶吗？不是的。4。他是她的爸爸吗？是的。他是她的爸爸吗？是的。Is this your sister? Yes ,it is.Is that his brother? No ,it isnt.Is she your grandmother? No, she isnt.Is he her father? Yes, he is.改错：改错：1.Are this your book?2.Those is my pen.3.Is these his pencils?4.Are those her ruler?5.Are they your book

16、s? Yes, theyre.Is this your book?/Are these your books?That is my pen./Those are my pens.Are these his pencils?Are those her rulers?Are they your books? Yes, they are.Homework1.这是他的铅笔这是他的铅笔。2.那个是你的文具盒吗？那个是你的文具盒吗？ 3.那些是你们的桔子吗？那些是你们的桔子吗？4.这些不是他们的地图。这些不是他们的地图。5.那些是他们的字典吗？那些是他们的字典吗？ 6.这些是我们的削笔刀吗？这些是我们的削笔刀吗？ 7.那些是她的手表吗？那些是她的手表吗？8.它是我们的学校。它是我们的学校。This is his pencil.Is that your pencil case?Are those your oranges?These are not their maps.Are those their dictionaries?Are these our pencil sharpeners?Are those her watches?It is our school.把下列句子翻译成英语：把下列句子翻译成英语：