内容正文:
知识清单·外研版三起三年级上册
Unit 2 My school things.
知识梳理
知识点拨
【考点一】What's this/that? 及其应答 【考点二】Is this/that your...? 及其应答
【考点三】this/that的用法区别与my/your 的形容词性物主代词用法
考点一:What's this/that? 及其应答
【课文原句】
A: What's this, Lingling?玲玲,这是什么?
B: It's a pencil.它是一支铅笔。
A: What's that, Daming?大明,那是什么?
B: It's a book.它是一本书。
解析:“What's this/that?” 是用于询问身边或视线范围内物品名称的核心句型,“this” 指代距离说话人较近的物品,“that” 指代距离说话人较远的物品,适配“课堂上认识学习用品”“整理书包时确认物品” 等场景,比如老师拿出文具教学生辨认、同学之间互相询问对方的物品。
★关键应答结构:
基础回答:It's a/an + 物品名称.,当物品名称以辅音音素开头时,用 “a”(如 a pen, a ruler);当物品名称以元音音素开头时,用 “an”(如 an eraser, an apple)。
补充所属:It's my/your + 物品名称.(可结合物品归属进一步说明),如 “It's my crayon.”(它是我的蜡笔。)
★易错点:混淆 “this” 和 “that” 的用法,不能把近处的物品用 “that” 提问;“a” 和 “an” 的搭配错误,比如不能说 “an pen” 或 “a eraser”;回答时主语要用 “it” 指代物品,不能说 “This is a pencil.” 来回应 “What's this?”(虽意思正确,但规范应答需用 “It's...”)。
【大显身手】
一、单项选择题。
( ) 1.—What's ________ over there? —It's a bag.
A. this B. that C. these
( ) 2.—What's this? —It's ________ eraser.
A. a B. an C. the
( ) 3.—What's that? —________ a ruler.
A. This is B. That is C. It's
二、补全句子。
1.—What's ________(这), Sam? —It's a pencil-box.
2.—What's ________(那)on the desk? —It's a book.
3.—What's this? —It's (一块橡皮).
考点二:Is this/that your...? 及其应答
【课文原句】
A: Is this your pen, Amy?埃米,这是你的钢笔吗?
B: Yes, it is.是的,它是。
A: Is that your bag, Tom?汤姆,那是你的书包吗?
B: No, it isn't.不,它不是。
解析:“Is this/that your...?” 是用于确认物品是否属于对方的一般疑问句,“this”“that” 的用法与考点一一致,适配 “捡到物品询问失主”“借用品时确认归属” 等场景,比如在教室捡到一支铅笔问同学是不是他的、向同桌借尺子前确认是不是对方的。
★核心应答规则:
回答类型
结构
示例
肯定回答
Yes, it is.(不能缩写为 “Yes, it's.”,肯定回答中 “it is” 不可缩写)
—Is this your crayon? —Yes, it is.
否定回答
No, it isn't.(“isn't” 是 “is not” 的缩写,否定回答中可缩写)
—Is that your book?
—No, it isn't.
★易错点:肯定回答中“it is” 不能缩写成“it's”;否定回答中“is not”缩写为“isn't”,不能写成 “is't”;提问时遗漏“your”,比如不能说“Is this pen?”(缺少归属限定,句子不完整)。
【大显身手】
一、单项选择题。
( ) 1.—Is this your pencil-box? —________
A. Yes, it's. B. Yes, it is. C. No, it is.
( ) 2.—Is that your ruler? —No, ________.
A. it is B. it isn't C. that isn't
( )3. —________ this your eraser? —Yes, it is.
A. Are B. Is C. Am
二、按要求改写句子。
1.This is my bag.(改为一般疑问句)________ this ________ bag?
2.Is that your book?(作肯定回答)________, ________ ________.
3.Is this your pen?(作否定回答)________, ________ ________.
考点三:this/that的用法区别与my/your的形容词性物主代词用法。
【课文原句】
This is my pen. 这是我的钢笔。
That is your ruler. 那是你的尺子。
解析:本考点包含两个核心知识点,一是指示代词 “this/that” 的区别,二是形容词性物主代词 “my/your” 的用法,二者常结合使用,用于准确描述物品的位置和归属,适配 “介绍自己的学习用品”“描述他人的物品” 等场景,比如向新同学展示自己的文具、告诉老师哪件是自己的书。
★ this/that 用法区别:
this:指代距离说话人 较近 的单数物品,可翻译为 “这;这个”,后面搭配单数名词,如 “this book”“this pencil”。
that:指代距离说话人 较远 的单数物品,可翻译为 “那;那个”,后面也搭配单数名词,如 “that bag”“that eraser”。
★ my/your 用法:
词性:二者均为 形容词性物主代词,本身不能单独使用,必须后面接名词,用来修饰名词,表示 “…… 的”。
含义:“my” 表示 “我的”,主语是第一人称 “I”;“your” 表示 “你的;你们的”,主语是第二人称 “you”。
示例:my pencil(我的铅笔)、your bag(你的书包)、your books(你们的书)。
★易错点:混淆 “this” 和 “that” 的距离指代,把远处的物品用 “this” 描述;“my/your” 后漏接名词,比如不能说 “This is my.”(缺少名词,句子不完整,应改为 “This is my pen.”);误用物主代词,比如把 “你的铅笔” 说成 “you pencil”(应改为 “your pencil”)。
【大显身手】
一、用 “this/that/my/your” 填空。
1.________ is a new bag. It's ________ bag.
2.________ is a ruler over there. Is it ________ ruler?
3.—What's ________? —It's ________ eraser.
二、判断题。(对打 “√”,错打 “×” 并改正)
1.That is I book.( )改正:________
2.This is your.( )改正:________
3.What's that? It's my pencil-box.( )改正:________
综合训练
一、单项选择题。
( ) —What's this? —It's ________ pen.
A. a B. an C. the
( ) —Is that ________ pencil-box? —Yes, it is.
A. You B. your C. my
( ) —What's ________ over there? —It's a book.
A. this B. these C. that
( ) —Is this your eraser? —No, ________.
A. it is B. it isn't C. that isn't
( ) This ________ my crayon. It's new.
A. is B. are C. am
二、用括号内单词的正确形式填空。
1.What's ________(this)? It's a pencil.
2.Is ________(that)your bag? Yes, it is.
3.This is ________(I)ruler. That is ________(you)book.
4.What's that? It's ________(a)eraser.
5.Is this your pencil? No, it ________(is not).
三、从方框中选择合适的单词补全句子。(每词限用一次)
(this, that, my, your, an)
1.________ is a new pen. It's red.
2.Is ________ your crayon? It's on the desk.
3.This is ________ pencil case. I like it.
4.Is this ________ book? Yes, it is.
5.What's that? It's ________ eraser.
四、将 A 栏的句子与 B 栏的回应连线。
A 栏
B 栏
1. What's this?
A. No, it isn't.
2. Is that your bag?
B. It's a ruler.
3. What's that?
C. Yes, it is.
4. Is this your pencil?
D. It's an eraser.
5. This is my book.
E. Oh, it's nice!
五、判断题。(判断句子是否正确,对打 “√”,错打 “×”)
( )1.What's that? It's a eraser.
( )2.Is this your pen? Yes, it's.
( )3.This is my pencil case.
( )4.That is you ruler.
( )5.What's this? It's a book.
六、【新情境・生活运用】根据情景选择合适的句子。(填序号)
A. What's this? B. Is that your pencil? C. This is my bag.
D. It's an eraser. E. No, it isn't.
1.你看到同桌手里拿着一个物品,想知道是什么,会说:________
2.老师问你 “这是什么?”,你回答是一块橡皮,会说:________
3.你看到远处有一支铅笔,想确认是不是好朋友的,会说:________
4.同学问你 “那是你的尺子吗?”,你回答不是,会说:________
5.你向新同学展示自己的书包,会说:________
七、【新题型・新情境】补全对话。
选择正确的句子序号填入横线中。
A. What's that? B. Is this your pencil? C. It's a book.
D. Yes, it is. E. No, it isn't.
Amy: Hello, Sam! Look at my desk.
Sam: Hi, Amy! 1. ________
Amy: It's my pencil case. Open it!
Sam: Wow! A pencil and an eraser. 2. ________
Amy: 3. ________ It's my new pencil.
Sam: What's on your chair? 4. ________
Amy: 5. ________ It's Lingling's book.
1.________ 2. ________ 3. ________ 4. ________ 5. ________
参考答案
考点一:
一、1.B 2.B 3.C
二、1.this 2.that 3.an eraser
考点二:
一、1.B 2.B 3.B
二、1.Is; your 2.Yes; it; is 3.No; it; isn't
考点三:
一、用 “this/that/my/your” 填空(答案不唯一,合理即可):1.This; my 2.That; your 3.this; my
二、1.×;That is my book. 2.×;This is your pen.(或其他具体名词) 3.√
综合训练
一、1.A 2.B 3.C 4.B 5.A
二、1.this 2.that 3.my; your 4.an 5.isn't
三、1.This 2.that 3.my 4.your 5.an
四、1-B 2-A 3-D 4-C 5-E
五、1.× 2.× 3.√ 4.× 5.√
六、1.A 2.D 3.B 4.E 5.C
七、1.A 2.B 3.D 4.A 5.E
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