B. 书面表达
假如你是来自英国的交换生Betty，现在在北京。今天，你们班组织了一次有意义的研学之旅——去长城参观。请你给在英国的奶奶写一张明信片，词数60左右，告诉她此刻你们正在做的事情以及游览感受。

参考范文：
Dear Grandma,
We're taking part in a school trip. I'm visiting the Great Wall of China with my classmates.
We are doing different things at the moment. I'm sitting on the Great Wall and writing to you. Lin Tao is walking side by side with Daming. They're talking happily. Tan Mei is buying some presents for her brothers at the shop, such as postcards and toys. Tony is taking a lot of photos of the Great Wall. And Wang Hui is having lunch. I think it's very interesting to have lunch here!
This trip is great and everyone is having fun. I hope I can visit the Great Wall again. Would you like to come with me?
Love,
Betty

【分析】
首先明确写作任务：以英国交换生Betty的身份给英国奶奶写明信片，需包含参观长城时此刻正在做的事、游览感受，词数60左右。解题思路：1. 遵循明信片格式：开头称呼Dear Grandma，结尾署名Love, Betty；2. 用现在进行时描述当下同学们的活动，紧扣“此刻正在做”的要求；3. 表达对长城之旅的感受，加入简单邀请细节贴合身份；4. 控制词数，语言自然简洁。
【解析】
写作步骤：① 开头点明背景：说明自己在北京参加学校研学旅行，正在长城；② 中间用现在进行时列举不同同学的活动（如“我正坐着给你写信，林涛和大明散步聊天，谭梅买礼物，托尼拍照等”），体现“此刻正在做”；③ 结尾总结旅行感受，邀请奶奶同来，呼应主题；④ 检查时态、格式、词数，确保符合要求。
【答案】
参考范文：
Dear Grandma,
We're taking part in a school trip. I'm visiting the Great Wall of China with my classmates.
We are doing different things at the moment. I'm sitting on the Great Wall and writing to you. Lin Tao is walking side by side with Daming. They're talking happily. Tan Mei is buying some presents for her brothers at the shop, such as postcards and toys. Tony is taking a lot of photos of the Great Wall. And Wang Hui is having lunch. I think it's very interesting to have lunch here!
This trip is great and everyone is having fun. I hope I can visit the Great Wall again. Would you like to come with me?
Love,
Betty
【知识点】
英语明信片写作、现在进行时运用
【点评】
该范文严格遵循明信片格式，时态运用准确，清晰呈现了参观长城时的活动场景，真实表达了旅行的愉悦感受，内容贴合Betty的身份，词数符合要求，是一篇优秀的书面表达范例。
【难度系数】
0.6