四年级上册英语的内容可以简写，但需要注意一些规则。以下是一些常见的缩写及其对应的全写：
Let’s go and see!
缩写：Let’s go and see!
全写：Let us go and see!
What’s in your schoolbag？
缩写：What’s in your schoolbag？
全写：What is in your schoolbag？
It’s blue and white.
缩写：It’s blue and white.
全写：It is blue and white.
What’s his name？
缩写：What’s his name？
全写：What is his name？
He’s tall and strong.
缩写：He’s tall and strong.
全写：He is tall and strong.
Who’s he？
缩写：Who’s he？
全写：Who is he？
No, she isn’t.
缩写：No, she isn’t.
全写：No, she is not.
No, they aren’t.
缩写：No, they aren’t.
全写：No, they are not.
They’re in the door.
缩写：They’re in the door.
全写：They are in the door.
What’s for dinner？
缩写：What’s for dinner？
这些缩写在口语交流中经常被使用，可以提高交流的效率。但在书面作业或正式场合中，建议使用全写以保持语言的规范性和准确性。
