2026届高考英语-重难点练习卷22应用文——半正式语域：得体性导学案（含答案）
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| 名称 | 2026届高考英语-重难点练习卷22应用文——半正式语域：得体性导学案（含答案） |
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| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2026-03-19 00:00:00 | ||
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2026高考英语·重难点专项突破练习卷22
应用文——半正式语域：得体性
【核心知识·深度解读】
应用文写作中，语域的把握是得分的关键。所谓“半正式语域”，介于正式与非正式之间，常见于学生与老师、顾客与服务人员、同事之间等社会关系。得体性体现在：语气恰当、措辞准确、符合身份关系。近三年高考书面表达中，请求信、致谢信、投诉信是高频考查体裁，而考生失分的主要原因往往是语气不当（过于生硬或过于随意）。
一、半正式语域的特征
维度 正式 半正式（得体） 非正式
称呼 Dear Sir/Madam, Dear Mr. Smith, / Dear Professor Li, Hi John,
请求用语 I would be grateful if you could... Could you please... / I was wondering if... Can you...
致谢用语 I wish to express my sincere gratitude... Thank you so much for... / I really appreciate... Thanks a lot!
投诉用语 I am writing to express my dissatisfaction... I'm afraid there's been a problem... / I'd like to bring your attention to... This is terrible! You messed up!
结尾 Yours faithfully, Best regards, / Yours sincerely, Cheers, / Take care,
二、得体性的三个维度
① 身份关系：根据收信人身份选择合适语气。对老师、长辈、机构用礼貌客气的半正式；对朋友、同学可用稍显随意的口语。
② 目的需求：请求要委婉，致谢要真诚，投诉要有理有据而不失礼貌。
③ 文化习惯：英语应用文讲究“礼貌原则”，即使是投诉也要先肯定再指出问题，避免直接指责。
三、三类文体的核心要点
1. 请求信：开头表明请求（I'm writing to ask if...），说明理由，表达感谢和期待。常用句型：I was wondering if you could... / Would it be possible to... / I'd appreciate it if you could...
2. 致谢信：开头直接感谢，提及具体帮助内容，表达感受，并适当回馈（如邀请对方）。常用句型：I'm writing to thank you for... / I'm so grateful for your help. / Your kindness meant a lot to me.
3. 投诉信：开头表明投诉事宜，说明问题细节，表达期望的解决方案，语气冷静有理。常用句型：I'm afraid I have a complaint about... / I was disappointed to find that... / I would appreciate it if you could...
四、示例题目：写一封邮件感谢外国朋友在你生病期间对你的照顾。高分作文用了“I'm writing to express my heartfelt thanks for your care while I was ill.”这样的半正式表达，既真诚又不失礼貌。
专项突破
一、得体性判断与修改（判断下列句子语气是否得体，若不得体请给出修改建议）
1. 给老师写信请求延长作业期限： "I need more time for the homework. Give me another week."
2. 感谢朋友帮你搬家： "Thanks a million for helping me move! You're a lifesaver!"
3. 投诉网购商品质量问题： "Your product is terrible. I want my money back right now."
4. 向教授咨询选课建议： "Hey Professor, what courses should I take next semester "
5. 感谢老师指导论文： "I am writing to express my sincere appreciation for your guidance on my thesis."
6. 请求图书馆延长借书期限： "I want to keep the book longer."
7. 投诉餐厅服务： "The service was slow and the waiter was rude." （直接这样写是否合适？）
8. 向公司客户服务部询问订单状态： "Where's my order It's been two weeks!"
9. 感谢陌生人的帮助： "Thanks for your help. I owe you one."
10. 请求同事帮忙完成项目： "Can you help me with this project It's urgent."
11. 向学校申请调换宿舍： "I don't like my roommate. Change my room."
12. 感谢教授写推荐信： "Thank you for writing the recommendation letter for me. I really appreciate it."
13. 投诉航班延误并要求赔偿： "Your flight was late. I demand compensation."
14. 请求邻居晚上安静一点： "Could you please keep the noise down after 10 p.m. I have trouble sleeping."
15. 感谢导师在求职中的帮助： "Thanks for your advice on my job application. It helped a lot."
16. 请求教授延期提交申请： "I was wondering if it might be possible to have an extension on the application deadline."
17. 投诉酒店房间不干净： "The room was dirty. I want a refund."
18. 感谢朋友送的礼物： "Thank you for the wonderful gift! It's exactly what I wanted."
19. 请求书店保留一本书： "Please hold that book for me. I'll come get it tomorrow."
20. 感谢志愿者活动组织者： "I'm writing to thank you for organizing such a meaningful volunteer activity."
二、情景写作（根据情景写出得体的句子）
21. 你想请教授帮你写一封推荐信，你会如何开头？
22. 朋友在你生病时每天给你送饭，你想写封邮件感谢他/她，第一句怎么写？
23. 你在网上买的衣服尺寸不对，想给客服写封投诉信，说明问题并提出解决方案。
24. 你想邀请外国朋友参加你的生日派对，但你知道他可能很忙，如何委婉询问？
25. 你向图书馆借的书快到期了，但还需要继续使用，如何请求续借？
26. 你作为学生会主席，想请校长出席闭幕式并致辞，如何措辞？
27. 你收到一位陌生人的帮助（帮你找回丢失的钱包），想写封感谢信，如何表达？
28. 你预订的酒店房间被重复预订，前台无法解决，你想给经理写投诉信。
29. 你想请老师对你的演讲稿提些建议，如何礼貌请求？
30. 你感谢一位学长在选课方面给你的建议，并告诉他结果很好。
31. 你网购的电子产品坏了，还在保修期内，如何向客服写信要求维修？
32. 你想请邻居在你去度假时帮忙照看植物，如何请求？
33. 你收到一位教授赠送的书籍，想写封感谢信。
34. 你参加的夏令营因天气原因取消，你想询问退款事宜。
35. 你感谢志愿者在社区活动中的辛勤工作，作为组织者写封感谢信。
36. 你向公司申请实习，但需要对方提供更多信息，如何写咨询邮件？
37. 你感谢朋友在你备考期间的理解和支持。
38. 你投诉外卖送错餐品，希望商家退款或重送。
39. 你想请教授指导你的科研项目，如何提出请求？
40. 你感谢房东在租房期间对你的照顾，并告知即将搬离。
三、礼貌用语匹配
41. 请求帮助 (一般) A. I would like to express my sincere apologies for...
42. 请求帮助 (正式) B. I'm writing to complain about...
43. 感谢 (一般) C. Could you possibly...
44. 感谢 (正式) D. I was wondering if you could...
45. 投诉 (一般) E. Thank you so much for...
46. 投诉 (正式) F. I'm writing to express my dissatisfaction with...
47. 道歉 (一般) G. I'm so sorry for...
48. 道歉 (正式) H. Thanks a lot!
49. 咨询信息 (一般) I. I am writing to inquire about...
50. 咨询信息 (正式) J. I'd like to know if...
四、语篇填空（每空一词）
Dear Mr. Johnson,
I am writing to 51.________ (请求) your permission to use the school auditorium for our club's annual exhibition on May 20th. We have prepared various activities to showcase our achievements. 52.________ (我想知道) if it would be possible to book it from 2 p.m. to 5 p.m.
I would also like to 53.________ (感谢) you for your continuous support to our club. Last year's exhibition was a great success 54.________ (由于) your help.
55.________ (如果你能) let me know by the end of this week, I would be most grateful. Please feel free to 56.________ (联系) me if you need more details.
57.________ (真诚的),
Li Hua
51.________ 52.________ 53.________ 54.________ 55.________ 56.________ 57.________
Dear Customer Service,
I am writing to 58.________ (投诉) about a recent purchase I made on your website. Order #12345 arrived yesterday, but unfortunately, the item is damaged.
59.________ (我感到失望) as this product was intended as a gift. I have attached photos of the damage. 60.________ (我将感激) if you could arrange a replacement or issue a refund.
61.________ (请告知) me how you would like to proceed. I look forward to your prompt response.
62.________ (此致),
Zhang Wei
58.________ 59.________ 60.________ 61.________ 62.________
五、整篇写作（根据情景完成整封信，词数80-100）
63. 你刚参加完一次国际文化交流活动，想给组织者写一封感谢信，感谢他们的精心安排，并提及你最喜欢的活动环节。
64. 你在网上订购了一本书，收到后发现缺页，给客服写一封投诉信，要求换货。
65. 你想申请暑期志愿者项目，但网站上信息不全，给主办方写一封咨询信，询问报名截止日期、服务内容和食宿安排。
66. 你收到一位教授的邀请，参加他的研究项目，但由于时间冲突无法参加，写一封谢绝信，表达感谢并说明理由。
67. 你作为班长，想请英语老师为班级英语角活动提供一些建议，写一封请求信。
68. 你刚从国外旅游回来，想给在旅途中帮助过你的当地向导写一封感谢信。
69. 你网购的耳机质量有问题，写一封投诉信要求退款。
70. 你收到一家公司的实习录用通知，但由于个人原因无法接受，写一封谢绝信。
参考答案及解析
一、得体性判断与修改
1. 不得体。修改：Could I possibly have an extension on the homework I would really appreciate it.
2. 得体（朋友间非正式可以）。
3. 不得体。修改：I'm afraid I have a complaint about the product I purchased. It is not as described and I would like a refund.
4. 不得体。修改：Dear Professor, I would be grateful if you could give me some advice on course selection for next semester.
5. 得体。
6. 不得体。修改：I was wondering if it would be possible to renew the book for another week.
7. 尚可，但可以更礼貌：I was disappointed with the service as it was slow and the waiter seemed a bit rude.
8. 不得体。修改：Could you please update me on the status of my order It has been two weeks since I placed it.
9. 得体（半正式，可用于感谢陌生人）。
10. 尚可，同事间可接受。但更礼貌：Would you be able to help me with this project It's urgent and I'd really appreciate your assistance.
11. 不得体。修改：I would like to request a room change due to some difficulties with my current roommate. Could you please advise on the procedure
12. 得体。
13. 不得体。修改：I am writing to express my concern about the flight delay. I would like to know if compensation is available.
14. 得体。
15. 得体。
16. 得体。
17. 不得体。修改：I was disappointed to find that the room was not as clean as expected. I would appreciate it if you could look into this matter.
18. 得体。
19. 尚可，但更礼貌：Would it be possible to hold that book for me I can pick it up tomorrow.
20. 得体。
二、情景写作（示例）
21. I am writing to respectfully ask if you would be willing to write a letter of recommendation for me.
22. I'm writing to thank you for taking care of me during my illness. Your kindness meant so much.
23. I'm afraid I have a problem with an item I ordered. The size is too small, and I would like to exchange it for a larger one.
24. I'm having a small birthday party this Saturday. I'd love for you to come if you're free. No pressure at all!
25. I was wondering if it would be possible to renew the book for another week as I still need it for my research.
26. On behalf of the Student Union, I would like to invite you to attend the closing ceremony and deliver a speech. We would be honored by your presence.
27. I'm writing to express my heartfelt thanks for returning my lost wallet. Your honesty is truly appreciated.
28. I am writing to report an issue with my reservation. It appears my room was double-booked. I would appreciate your assistance in resolving this.
29. Would you be willing to give me some feedback on my speech draft I would value your suggestions.
30. Thank you so much for your advice on course selection. I followed your suggestion and it worked out really well!
31. I am writing to request a repair for a product purchased from your store. It is still under warranty and has stopped working.
32. Could you possibly water my plants while I'm away on vacation next week I'd be very grateful.
33. Thank you very much for the book you sent me. It was very thoughtful of you, and I am enjoying it immensely.
34. I would like to inquire about the refund policy for the summer camp, as it was cancelled due to weather.
35. On behalf of the community, I want to thank all the volunteers for their hard work during the event. Your dedication made it a success.
36. I am interested in the internship position advertised. Could you please provide more information about the application process
37. Thank you for being so understanding during my exam period. Your support really helped me stay focused.
38. I'm afraid my order arrived with the wrong items. Could you please arrange a replacement or refund
39. I would be honored if you could supervise my research project. I am very interested in your field of study.
40. Thank you for being such a wonderful landlord. I have enjoyed living here and will be sad to leave. I will ensure everything is in order before moving out.
三、礼貌用语匹配
41-D, 42-C, 43-E, 44-(无), 45-B, 46-F, 47-G, 48-A, 49-J, 50-I.
四、语篇填空
51. request / ask for 52. I was wondering 53. thank 54. thanks to / because of 55. If you could 56. contact 57. Yours sincerely plain 59. I am disappointed 60. I would appreciate it 61. Please let me know 62. Yours faithfully / Best regards
五、整篇写作（范文略，但给出要点）
63-70略，教师可参考前面情景写作示例进行批改，要点包括：正确称呼、礼貌语气、清晰目的、具体细节、恰当结尾。
教学使用建议： 建议学生先理解得体性的三个维度，然后通过判断修改体会常见错误，再通过情景写作练习具体表达。教师可组织互评，重点关注语气是否恰当、措辞是否准确。最后整篇写作可布置为课后作业。
应用文——半正式语域：得体性
【核心知识·深度解读】
应用文写作中，语域的把握是得分的关键。所谓“半正式语域”，介于正式与非正式之间，常见于学生与老师、顾客与服务人员、同事之间等社会关系。得体性体现在：语气恰当、措辞准确、符合身份关系。近三年高考书面表达中，请求信、致谢信、投诉信是高频考查体裁，而考生失分的主要原因往往是语气不当（过于生硬或过于随意）。
一、半正式语域的特征
维度 正式 半正式（得体） 非正式
称呼 Dear Sir/Madam, Dear Mr. Smith, / Dear Professor Li, Hi John,
请求用语 I would be grateful if you could... Could you please... / I was wondering if... Can you...
致谢用语 I wish to express my sincere gratitude... Thank you so much for... / I really appreciate... Thanks a lot!
投诉用语 I am writing to express my dissatisfaction... I'm afraid there's been a problem... / I'd like to bring your attention to... This is terrible! You messed up!
结尾 Yours faithfully, Best regards, / Yours sincerely, Cheers, / Take care,
二、得体性的三个维度
① 身份关系：根据收信人身份选择合适语气。对老师、长辈、机构用礼貌客气的半正式；对朋友、同学可用稍显随意的口语。
② 目的需求：请求要委婉，致谢要真诚，投诉要有理有据而不失礼貌。
③ 文化习惯：英语应用文讲究“礼貌原则”，即使是投诉也要先肯定再指出问题，避免直接指责。
三、三类文体的核心要点
1. 请求信：开头表明请求（I'm writing to ask if...），说明理由，表达感谢和期待。常用句型：I was wondering if you could... / Would it be possible to... / I'd appreciate it if you could...
2. 致谢信：开头直接感谢，提及具体帮助内容，表达感受，并适当回馈（如邀请对方）。常用句型：I'm writing to thank you for... / I'm so grateful for your help. / Your kindness meant a lot to me.
3. 投诉信：开头表明投诉事宜，说明问题细节，表达期望的解决方案，语气冷静有理。常用句型：I'm afraid I have a complaint about... / I was disappointed to find that... / I would appreciate it if you could...
四、示例题目：写一封邮件感谢外国朋友在你生病期间对你的照顾。高分作文用了“I'm writing to express my heartfelt thanks for your care while I was ill.”这样的半正式表达，既真诚又不失礼貌。
专项突破
一、得体性判断与修改（判断下列句子语气是否得体，若不得体请给出修改建议）
1. 给老师写信请求延长作业期限： "I need more time for the homework. Give me another week."
2. 感谢朋友帮你搬家： "Thanks a million for helping me move! You're a lifesaver!"
3. 投诉网购商品质量问题： "Your product is terrible. I want my money back right now."
4. 向教授咨询选课建议： "Hey Professor, what courses should I take next semester "
5. 感谢老师指导论文： "I am writing to express my sincere appreciation for your guidance on my thesis."
6. 请求图书馆延长借书期限： "I want to keep the book longer."
7. 投诉餐厅服务： "The service was slow and the waiter was rude." （直接这样写是否合适？）
8. 向公司客户服务部询问订单状态： "Where's my order It's been two weeks!"
9. 感谢陌生人的帮助： "Thanks for your help. I owe you one."
10. 请求同事帮忙完成项目： "Can you help me with this project It's urgent."
11. 向学校申请调换宿舍： "I don't like my roommate. Change my room."
12. 感谢教授写推荐信： "Thank you for writing the recommendation letter for me. I really appreciate it."
13. 投诉航班延误并要求赔偿： "Your flight was late. I demand compensation."
14. 请求邻居晚上安静一点： "Could you please keep the noise down after 10 p.m. I have trouble sleeping."
15. 感谢导师在求职中的帮助： "Thanks for your advice on my job application. It helped a lot."
16. 请求教授延期提交申请： "I was wondering if it might be possible to have an extension on the application deadline."
17. 投诉酒店房间不干净： "The room was dirty. I want a refund."
18. 感谢朋友送的礼物： "Thank you for the wonderful gift! It's exactly what I wanted."
19. 请求书店保留一本书： "Please hold that book for me. I'll come get it tomorrow."
20. 感谢志愿者活动组织者： "I'm writing to thank you for organizing such a meaningful volunteer activity."
二、情景写作（根据情景写出得体的句子）
21. 你想请教授帮你写一封推荐信，你会如何开头？
22. 朋友在你生病时每天给你送饭，你想写封邮件感谢他/她，第一句怎么写？
23. 你在网上买的衣服尺寸不对，想给客服写封投诉信，说明问题并提出解决方案。
24. 你想邀请外国朋友参加你的生日派对，但你知道他可能很忙，如何委婉询问？
25. 你向图书馆借的书快到期了，但还需要继续使用，如何请求续借？
26. 你作为学生会主席，想请校长出席闭幕式并致辞，如何措辞？
27. 你收到一位陌生人的帮助（帮你找回丢失的钱包），想写封感谢信，如何表达？
28. 你预订的酒店房间被重复预订，前台无法解决，你想给经理写投诉信。
29. 你想请老师对你的演讲稿提些建议，如何礼貌请求？
30. 你感谢一位学长在选课方面给你的建议，并告诉他结果很好。
31. 你网购的电子产品坏了，还在保修期内，如何向客服写信要求维修？
32. 你想请邻居在你去度假时帮忙照看植物，如何请求？
33. 你收到一位教授赠送的书籍，想写封感谢信。
34. 你参加的夏令营因天气原因取消，你想询问退款事宜。
35. 你感谢志愿者在社区活动中的辛勤工作，作为组织者写封感谢信。
36. 你向公司申请实习，但需要对方提供更多信息，如何写咨询邮件？
37. 你感谢朋友在你备考期间的理解和支持。
38. 你投诉外卖送错餐品，希望商家退款或重送。
39. 你想请教授指导你的科研项目，如何提出请求？
40. 你感谢房东在租房期间对你的照顾，并告知即将搬离。
三、礼貌用语匹配
41. 请求帮助 (一般) A. I would like to express my sincere apologies for...
42. 请求帮助 (正式) B. I'm writing to complain about...
43. 感谢 (一般) C. Could you possibly...
44. 感谢 (正式) D. I was wondering if you could...
45. 投诉 (一般) E. Thank you so much for...
46. 投诉 (正式) F. I'm writing to express my dissatisfaction with...
47. 道歉 (一般) G. I'm so sorry for...
48. 道歉 (正式) H. Thanks a lot!
49. 咨询信息 (一般) I. I am writing to inquire about...
50. 咨询信息 (正式) J. I'd like to know if...
四、语篇填空（每空一词）
Dear Mr. Johnson,
I am writing to 51.________ (请求) your permission to use the school auditorium for our club's annual exhibition on May 20th. We have prepared various activities to showcase our achievements. 52.________ (我想知道) if it would be possible to book it from 2 p.m. to 5 p.m.
I would also like to 53.________ (感谢) you for your continuous support to our club. Last year's exhibition was a great success 54.________ (由于) your help.
55.________ (如果你能) let me know by the end of this week, I would be most grateful. Please feel free to 56.________ (联系) me if you need more details.
57.________ (真诚的),
Li Hua
51.________ 52.________ 53.________ 54.________ 55.________ 56.________ 57.________
Dear Customer Service,
I am writing to 58.________ (投诉) about a recent purchase I made on your website. Order #12345 arrived yesterday, but unfortunately, the item is damaged.
59.________ (我感到失望) as this product was intended as a gift. I have attached photos of the damage. 60.________ (我将感激) if you could arrange a replacement or issue a refund.
61.________ (请告知) me how you would like to proceed. I look forward to your prompt response.
62.________ (此致),
Zhang Wei
58.________ 59.________ 60.________ 61.________ 62.________
五、整篇写作（根据情景完成整封信，词数80-100）
63. 你刚参加完一次国际文化交流活动，想给组织者写一封感谢信，感谢他们的精心安排，并提及你最喜欢的活动环节。
64. 你在网上订购了一本书，收到后发现缺页，给客服写一封投诉信，要求换货。
65. 你想申请暑期志愿者项目，但网站上信息不全，给主办方写一封咨询信，询问报名截止日期、服务内容和食宿安排。
66. 你收到一位教授的邀请，参加他的研究项目，但由于时间冲突无法参加，写一封谢绝信，表达感谢并说明理由。
67. 你作为班长，想请英语老师为班级英语角活动提供一些建议，写一封请求信。
68. 你刚从国外旅游回来，想给在旅途中帮助过你的当地向导写一封感谢信。
69. 你网购的耳机质量有问题，写一封投诉信要求退款。
70. 你收到一家公司的实习录用通知，但由于个人原因无法接受，写一封谢绝信。
参考答案及解析
一、得体性判断与修改
1. 不得体。修改：Could I possibly have an extension on the homework I would really appreciate it.
2. 得体（朋友间非正式可以）。
3. 不得体。修改：I'm afraid I have a complaint about the product I purchased. It is not as described and I would like a refund.
4. 不得体。修改：Dear Professor, I would be grateful if you could give me some advice on course selection for next semester.
5. 得体。
6. 不得体。修改：I was wondering if it would be possible to renew the book for another week.
7. 尚可，但可以更礼貌：I was disappointed with the service as it was slow and the waiter seemed a bit rude.
8. 不得体。修改：Could you please update me on the status of my order It has been two weeks since I placed it.
9. 得体（半正式，可用于感谢陌生人）。
10. 尚可，同事间可接受。但更礼貌：Would you be able to help me with this project It's urgent and I'd really appreciate your assistance.
11. 不得体。修改：I would like to request a room change due to some difficulties with my current roommate. Could you please advise on the procedure
12. 得体。
13. 不得体。修改：I am writing to express my concern about the flight delay. I would like to know if compensation is available.
14. 得体。
15. 得体。
16. 得体。
17. 不得体。修改：I was disappointed to find that the room was not as clean as expected. I would appreciate it if you could look into this matter.
18. 得体。
19. 尚可，但更礼貌：Would it be possible to hold that book for me I can pick it up tomorrow.
20. 得体。
二、情景写作（示例）
21. I am writing to respectfully ask if you would be willing to write a letter of recommendation for me.
22. I'm writing to thank you for taking care of me during my illness. Your kindness meant so much.
23. I'm afraid I have a problem with an item I ordered. The size is too small, and I would like to exchange it for a larger one.
24. I'm having a small birthday party this Saturday. I'd love for you to come if you're free. No pressure at all!
25. I was wondering if it would be possible to renew the book for another week as I still need it for my research.
26. On behalf of the Student Union, I would like to invite you to attend the closing ceremony and deliver a speech. We would be honored by your presence.
27. I'm writing to express my heartfelt thanks for returning my lost wallet. Your honesty is truly appreciated.
28. I am writing to report an issue with my reservation. It appears my room was double-booked. I would appreciate your assistance in resolving this.
29. Would you be willing to give me some feedback on my speech draft I would value your suggestions.
30. Thank you so much for your advice on course selection. I followed your suggestion and it worked out really well!
31. I am writing to request a repair for a product purchased from your store. It is still under warranty and has stopped working.
32. Could you possibly water my plants while I'm away on vacation next week I'd be very grateful.
33. Thank you very much for the book you sent me. It was very thoughtful of you, and I am enjoying it immensely.
34. I would like to inquire about the refund policy for the summer camp, as it was cancelled due to weather.
35. On behalf of the community, I want to thank all the volunteers for their hard work during the event. Your dedication made it a success.
36. I am interested in the internship position advertised. Could you please provide more information about the application process
37. Thank you for being so understanding during my exam period. Your support really helped me stay focused.
38. I'm afraid my order arrived with the wrong items. Could you please arrange a replacement or refund
39. I would be honored if you could supervise my research project. I am very interested in your field of study.
40. Thank you for being such a wonderful landlord. I have enjoyed living here and will be sad to leave. I will ensure everything is in order before moving out.
三、礼貌用语匹配
41-D, 42-C, 43-E, 44-(无), 45-B, 46-F, 47-G, 48-A, 49-J, 50-I.
四、语篇填空
51. request / ask for 52. I was wondering 53. thank 54. thanks to / because of 55. If you could 56. contact 57. Yours sincerely plain 59. I am disappointed 60. I would appreciate it 61. Please let me know 62. Yours faithfully / Best regards
五、整篇写作（范文略，但给出要点）
63-70略，教师可参考前面情景写作示例进行批改，要点包括：正确称呼、礼貌语气、清晰目的、具体细节、恰当结尾。
教学使用建议： 建议学生先理解得体性的三个维度，然后通过判断修改体会常见错误，再通过情景写作练习具体表达。教师可组织互评，重点关注语气是否恰当、措辞是否准确。最后整篇写作可布置为课后作业。