课程内容
五年级英语上册Unit 6《It's a grapefruit.》（Lesson 31）
Just talk
Mum,what's this?
妈妈，这是什么？
It's a grapefruit.
它是一个葡萄柚。
A grapefruit?It's so big.Can I have one?
一个葡萄柚？它是如此的答。我能吃一个吗？
Yes.But not these.We'll buy one in a shop.
可以。但不是这些。我们将在商店买一个。
What's that?
那是什么？
It's a coconut.
它是一个椰子。
Is it yummy?
它好吃吗？
Yes,I'll buy one for you.
是的，我将给你买一个。
Key points
What's this？
It's a grapefruit.
What's that?
It's a coconut.
询问某物是什么的句型：
句型结构
What's this/that?
It's a/an+某物。
Mum,what's this?妈妈，这是什么？
It's a grapefruit.它是一个葡萄柚。
What's that?
那是什么？
It's a coconut.
它是一个椰子。
重点解析
what意为“什么”，this意为“这，这个”，that意为“那，那个”，它们是一组对应词。
询问距离说话人较近的物品时，用this来替代；询问距离说话人较远的物品是什么时，用that来指代。
生活实例
星期日，youyou和haohao去看昆虫标本展出，所有的标本都很漂亮，Youyou想知道自己面前的标本是什么，她该怎样询问呢？Haohao又是如何回答呢？
What's this？
It's a butterfly.
表示请求的句型——Can I...?
句型结构
问句：Can I+动词原形+其他？
答语：Yes,you can.
/No/Sorry,you can't.
重点解析
此问句用于向对方征求意见。属于情态动词型疑问句。此基本框架：
情态动词+人/物+动词原形+其他？
Can I have one？
can是情态动词，在一般疑问句中应放在句首，五人称和数的变化。
其后的谓语动词用原形。
在答语中，can't是can not的缩写。
生活实例
星期日，Ding ding做完家庭作业后，想和朋友们出去玩一会儿，于是他去征求妈妈的意见：
Mum,can I go out with my friends?
Yes,you can.
易混辨析
can 与may
can与may都可以表示“允许；许可”。在征求对方意见时常may.
May I go now?
现在我能走吗？
在两者都可以使用时，may显得更客气一些。
May I take this seat?/Can I take this seat?
我能做这个座位吗？
在陈述句中常用can.
You can sit here.
你可以坐在这儿。
can还可以表示能力，而may则无此用法。
banana
pineapple
peach
What's this?
It's a/an....
What's this?
It's an banana.
What's that?
It's a pear.
What's this?
It's a coconut.
What's that?
It's an grapefruit.
What's this?
Guess!What's this?
It's a pear?
Guess!What's this?
It's a peach?
Guess!What's this?
It's a Lemon?
Guess!What's this?
It's an apple?
Guess!What's this?
It's a pineapple?
Guess!What's that?
It's an orange?
Guess!What's that?
It's a pear?
Guess!What's that?
It's a coconut?
Guess!What's that?
It's a grapefruit?
I love fruits.Mm,Yummy!
Read and think
What's this?
It's a banana.
What's this?
It's an apple.
What's this?
It's an orange.
Homework
1、听录音，熟读对话。
2、运用句型What's this/that?准确询问“这/那是什么？”
3、完成相关练习。
