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. .

56. No, I didn’t
57. How long did it take you to finish the poster
58. Who drew the pictures
59. How about the writing / What did Li Qian do
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.

Scientists think both B and C could be correct. The weasels' fur turns icy white in winter can help them hide in the snow to avoid predators, and the white fur also has better heat preservation performance to keep them warm.

对照短文内容逐一判断选项：
1. 全文没有提及夏季获得更多阳光让鼬鼠毛发变深的相关表述，A选项不符合原文内容；
2. 短文说明冬季积雪覆盖时，白色的毛发可以帮助鼬鼠更好地在雪地中躲藏，避免被捕食者发现，B选项表述符合原文；
3. 短文提到白色毛发的每根毛发内部有更多空气空间，隔热性能更好，比棕色毛发的保暖效果更强，C选项表述符合原文；
原文明确说明科学家认为B和C都可能是鼬鼠毛发变色的合理原因。