《2025年暑假作业延边教育出版社七年级B版数学华师大版英语仁爱版河南专版》

Ⅵ.补全对话
根据下面的对话情景,在每个空白处填上一个适当的句子,使对话的意思连贯、完整。
A: The poster about the school music festival is great! Did you make it by yourself?
B:56. ______. I worked with Zhang Ping and Li Qian.
A:57. ______?
B: It took us a week.
A: The pictures are beautiful. 58. ______?
B: Zhang Ping is good at drawing and she drew them.
A:59. ______?
B: Li Qian did the writing.
A: You worked well together.
B:60. ______.

答案： 56. No, I didn't
57. How long did it take you (to make it)
58. Who drew the pictures
59. Who did the writing
60. Thank you

Ⅶ.百科问答
Putting on a new white coat to prepare for the cold days
Why does the fur of some weasels (鼬鼠) change from brown in summer to icy white (冰白色) in winter?
A. They get more sunlight in summer, so their fur gets darker.
B. Their fur turns white to help them hide (躲藏) in the snow in winter.
C. White fur helps them stay warmer than brown fur.
No one is really sure, but scientists think both B and C could be correct. When the snow covers (覆盖) the mountains, predators (捕食者) can easily see the brown fur of the weasels. So, some weasels change their fur into an icy white color in winter. This way, they can better hide themselves in the snow. Another possible (可能的) answer is C. A special thing in hair gives it its color. When it isn't there, there are more air spaces (空间) in each hair. So, white fur has better insulating properties (隔热性能) and can keep the animal nice and warm.

答案： No one is really sure, but scientists think both B and C could be correct.