当你们告别一个年级的同时,也即将成为高一个年级的学生了。如何让自己的暑假生活更充实,更有意义呢?下面是为大家分享的外研版三年级英语暑假作业，希望对大家有帮助。

一、选择正确的答案：

( ) 1. ---Is this your cake ? ---Yes , ____ ____.

A. it is B. it isn’t C. this is

( ) 2. That’s _____ my lunch box . A. is B. isn’t C. /

( ) 3. ---What is it? -- _____ a _____ .

A. This; doll B. It’s ; doll C. That’s ; doll

( ) 4. ---Is that your crayon? ---_____, it _____.

A. No ; is B. Yes ; isn’t C. No ; isn’t

( ) 5. This _____ a pencil. A. ’s B. isn’t C. /

( ) 6. ---Is this your toy bird? ---_____, it _____. It isn’t my toy bird.

A. Yes ; is B. No ; isn’t C. No ; is

( ) 7. ---Please open your book. ---_____, Miss Li .

A. OK B. No C . Good