Unit 3 This is my sister. Section B课件[上学期]

课件16张PPT。 Unit 3

This is my sister.a bookbooksThat is a book.This is a book.These are books.Those are books ,too.These are my erasers.Those are your pencil sharpeners.This is an orange.These are oranges.That is her pencil.Those are her pencils.Is that his pencil case? Yes,it is. No, it isn’t. Is this your pencil?Are these your keys?Yes, they are.Are those her pens?No, they aren’t.A:Are these your ……?A :Are those your ….?B :Yes ,they are .B:No,they aren’t.be动词表示“是”，有三个：am ,is, are.
我（I）用(am),
你(you )用(are),
is连着他(he)、她(she)、它(it),
单数跟is 后，复数全部都用are.单数复数this
that
is/amthese
those
are变为疑问句：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?改错：1.Are this your book?2.Those is my pen.3.Is these his pencils?4.Are those her ruler?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 those your backpacks?5.Are they your books?Yes,they’re.Are they your books?Yes,they are.
1.一般直接加s，
如pen—pens,eraser—erasers,book—books.
2.以o.s.x.sh.ch.结尾的加es,
如watch---watches.
3.以辅音字母加y结尾的，变y为i再加es,
如family---families,dictionary--dictionaries.
4.以f或fe结尾的变f或fe为v再加es，
如knife(小刀)—knives.
5.部分以“o” 结尾加es
如potatoes (土豆） tomatoes（西红柿）
其他加s, 如photo--photos
可数名词复数：把下列单数名词变成复数：pencil baseball game notebook ring rulerpencils baseballs games notebooks rings rulerswatch fish bus box 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：1.This is a book.2.That is an orange.3. This is my pencil .4.That is her quilt.5.Is this your watch?6.Is that his dictionary?7.It is my map.8.That’s his ring. This 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.人称代词和物主代词：人称代词是经常用做主语的代词，
物主代词就是表示所有关系的代词。
人称代词：
I 我 you 你 he 他 she 她 it它
we我们 you 你们 they他们 形容词性物主代词 ：
my 我的 your 你的 his 他的 her她的
its 它的 our 我们的 your 你们的
their 他们的把下列句子翻译成英语：
1.这是他的铅笔。2.那个是你的文具盒吗？ 3.那些是你们的桔子吗？4.这些不是他们的地图。5.那些是他们的字典吗？6.这些是我们的削笔刀吗？7.那些是她的手表吗？8.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.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
6.He is my sister.
7.She is his mother.
8.I am Jeff.1.Is this your clock?
2. Is that my ring?
3.Are these her books?
4.Are those his oranges?
5.Are those you backpacks?
6.Is your sister?
7. Is she his mother?
8.Are you Jeff?