2026年假期生活北京教育出版社四年级第12页答案
2.大扫除后,小华和爸爸妈妈玩起了游戏。他们把大扫除中找到的火柴棒摆成下面的图形,要求移动3根火柴棒,使它变成只有3个同样大小的正方形。请你也来试一试,并画出来。

答案

移动方法:
1. 取出原2×2排布的4个小正方形中任意1个小正方形的3条边的火柴,共3根。
2. 将这3根火柴移动到图形空白区域,和该小正方形剩余的1条边的火柴拼接成1个和原小正方形大小相同的全新独立小正方形。
此时原图形剩余部分保留2个完整的等大小小正方形,加上新拼接的1个小正方形,总共得到3个大小完全相同的小正方形,仅移动了3根火柴,符合题目要求。
答:按上述方法移动3根火柴,即可得到3个互不共用边、同样大小的正方形。
三、让我们来看看鲍勃的房间吧!将合适的词填在横线上。
This
is
1
Bob's room. The window is big, and the wall is white. There is
a
2
picture on the wall. There is a desk
in
3
front
of
4
Bob. The desk is very big. There
are
5
three pencils and
a
6
cup of tea on the desk. Under the desk, there is a football. Are there any curtains(窗帘)
in
7
the room? Yes,
there
8
are. Bob's room is clean and bright(明亮的).
1.
is
2.
a
3.
in
4.
of

5.
are
6.
a
7.
in
8.
there

答案

1. is 2. a 3. in 4. of 5. are 6. a 7. in 8. there
四、小丽有一个幸福的家,她写了一篇小作文来介绍自己的家庭。让我们来读一下并判断下列句子的正(T)误(F)。
I have a happy family. There are five people in my family. My grandpa and my grandma are very old. They like watching TV very much. My father is a doctor. My mother is a nurse. They work hard. I
am a student in Grade Three. I love my family!
(
F
)1. There are three people in my family.
(
F
)2. My father is a teacher.
(
F
)3. My mother is a doctor.
(
T
)4. My grandpa likes watching TV.
(
T
)5. I'm a student in Grade Three.

答案

1.F 2.F 3.F 4.T 5.T