英语语法：these和those用法
this, that, these和those是指示代词，these是this的复数形式,指时间,距离较近的或下面要提到的人或事;those是that的复数形式,指时间、距离较远或前面已经提到过的人或事物。
①This is my bed. That is Lily’s bed. 这是我的床。那是莉莉的床。
②These pictures are good. 那些画很好。
③ Are those apple trees? 那些是苹果树吗?
在回答主语是these或those的疑问句时，通常用they代替these或those以避免重复。如：
④Are these/those your apples? 这些(那些)是你的苹果吗?
Yes, they are. 是的，他们是。
This That These Those 区别和用法
this和that是单数，these和those是复数
this和these相当于here
that和those相当于there
这四个词可以作为限定词或代词使用
What's this book about?
That door's unlocked.
I really like those socks.
This is lovely.
That is a great achievement.
用法
this that 在单数不可数名词中使用
This bread is stale.
stale=not fresh
Please pass me that coffee.
these those与复数名词使用
These shoes are yours
Those houses are for sale
that和this都可以描述时间
This morning, I went on a run.
I'm going to Paris this week.
that描述时间通常表示很久以前的事
I wonder if I'll ever get married. That day would be great!
做代词
比如去某地方玩，朋友问你Are you happy with that?
that指来这个地方是否是正确的
Can you turn that down please
I hate Heavy Metal.
Those are beautiful!
描述人
That's my mother over there.
Hello? Is that John?
that and those
Can I use this pen?
I'll print this tomorrow.
I got these done last week.
Those pictures we took yesterday were amazing!
That's my favourite place.
指示代词 this,that,these,those用法
1. 用法
注意 is/are 的使用：
this/that+可数名词单数 或 不可数名词+ is
these/those+可数名词复数+are
例：
离你较近的时候：
this apple 这个苹果
these apples 这些苹果
离你较远的时候(经常与over there连用)：
that apple 那个苹果
those apples 那些苹果
2. 常见句型
句型：
1. -- What is this/that?
这是/那是什么?
-- It’s a/an...它是...
例：
-- What is this?
这是什么?
-- It is a banana.
它是一个香蕉。
-- What's that?
那是什么?
-- It’s an apple.
它是一个苹果。
It is =It's
What is = What's
2.-- Is this/that...?
这是/那是...吗?
-- Yes,it is.是的，它是。
-- No,it isn’t.不，它不是。
例：-- Is this a lemon?
这是一个柠檬吗?
-- Yes, it is.
是的，它是。
-- Is that a pear?
那是一个梨吗?
-- No, it isn't.
不，它不是。
3. -- What are these/those?
这些/那些是什么?
-- They are...它们是...
例：
-- What are these?
这些是什么?
-- They are cabbages.
它们是卷心菜。
-- What are those?
那些是什么?
-- They‘re onions.
它们是洋葱。
They are = They're
4. These /Those are...
这些/那些是....
例：These are carrots.
这些是胡萝卜。
Those are beans.
那些是豆角。
5. -- Are these/those...?
这些/那些是...吗?
-- Yes,they are.是的，它们是。
-- No,they aren’t.不，它们不是。
例：
-- Are these potatoes?
这些是土豆吗?
-- Yes,they are.
是的，它们是。
不能写成：Yes,they're.
-- Are those mushrooms?
那些是蘑菇吗?
-- No,they aren’t.
不，它们不是。