Unit 5 Into the wild 语法巩固：定语从句（二）-2026-2027学年高中英语外研版必修第一册

高中英语语法专项巩固训练 Unit 5 Into the wild·定语从句（二）（外研版必修第一册） 适用范围：外研版（2019）高中英语必修第一册 建议用时：40 分钟 一、单句语法填空 阅读下列句子，在空白处填入 where、when 或 why，使定语从句完整。 1. We finally reached the small island ___ the rare whales spend every winter. 2. April is the time ___ thousands of birds return to the wetland. 3. Pollution is the main reason ___ many sea animals are dying out. 4. The nature reserve ___ we volunteered last summer lies deep in the mountains. 5. Nobody knows the exact moment ___ the first stars appear in the sky. 6. This is the rescue centre ___ injured birds are treated and set free. 7. Summer vacation is the season ___ children can explore nature freely. 8. Nobody could explain the reason ___ the whales swam into the shallow water. 9. The old path ___ the villagers walk to school crosses a small stream. 10. Do you still remember the day ___ we planted trees together by the river? 11. The wildlife photographer chose a hiding place ___ he could watch the fox family closely. 12. Hard work is the reason ___ she finally won the photography award. 13. I will never forget the evening ___ my father told me stories about the sea. 14. The wetland ___ millions of birds spend the winter is now well protected. 15. There are many reasons ___ we should protect wild animals. 16. The camera ___ my uncle bought in Kenya works very well in the wild. 17. Autumn is the season ___ the swallow flies south. 18. That is the field ___ the science class observed insects last Friday. 19. Can you tell me the reason ___ he gave up the well-paid job and joined the wildlife charity? 20. I still remember the morning ___ the whole family got up early to watch the sunrise. 二、语篇语法填空 阅读下面短文，在空白处填入 where、when、why 或适当的关系代词，使短文完整。 Last July, I joined a two-week wildlife camp ___1___ teenagers learn to protect animals in the wild. Our camp was near a lake ___2___ thousands of birds breed every summer. I still remember the morning ___3___ we got up before sunrise to count the swans. The expert ___4___ led our group showed us how to record data without disturbing the animals. "Keep quiet," she said. "This is the place ___5___ the birds feel safe, and noise is the reason ___6___ they sometimes leave their nests." On the last day, at the moment ___7___ we said goodbye, the expert gave each of us a feather bookmark. There, I also learned that the lake was once seriously polluted, and that was the reason ___8___ the fish nearly died out. Thanks to the protection project ___9___ started twenty years ago, the birds' number has recovered. Now, whenever I see the photo ___10___ we took on the last morning, I remember every bird on the shining water. 三、合并句子 用 where、when 或 why 把下列每组两句合并为一句，使其成为含有定语从句的复合句。 1. The summer camp was unforgettable. We learned to protect wildlife there. 2. I still remember that morning. We watched the birds fly south on that morning. 3. Nobody knew the reason. The whales left the bay for that reason. 4. The wetland is a paradise for birds. Many rare birds spend the winter in the wetland. 5. March is the month. The swallows return home in that month. 6. Human activity is the main reason. For that reason, some wild animals are losing their homes. 参考答案 一、单句语法填空 1. where 2. when 3. why 4. where 5. when 6. where 7. when 8. why 9. where 10. when 11. where 12. why 13. when 14. where 15. why 16. which（或 that） 17. when 18. where 19. why 20. when 【解析】 1. 先行词 the small island 表示地点，在从句中作地点状语，用 where。 2. 先行词 the time 表示时间，在从句中作时间状语，用 when。 3. 先行词 the main reason 表示原因，用 why。 4. 先行词 the nature reserve 表示地点，用 where。 5. 先行词 the exact moment 表示时间，用 when。 6. 先行词 the rescue centre 表示地点，用 where。 7. 先行词 the season 表示时间，用 when。 8. 先行词 the reason 表示原因，用 why。 9. 先行词 the old path 表示地点，在从句中作状语，用 where（也可说 on which）。 10. 先行词 the day 表示时间，用 when。 11. 先行词 a hiding place 表示地点，用 where。 12. 先行词 the reason 表示原因，用 why。 13. 先行词 the evening 表示时间，用 when。 14. 先行词 the wetland 表示地点，用 where。 15. 先行词 many reasons 表示原因，用 why。 16. 先行词 the camera 在从句中作宾语，指物，用 which 或 that，复习上一单元。 17. 先行词 the season 表示时间，用 when。 18. 先行词 the field 表示地点，用 where。 19. 先行词 the reason 表示原因，用 why。 20. 先行词 the morning 表示时间，用 when。 二、语篇语法填空 1. where 2. where 3. when 4. who/that 5. where 6. why 7. when 8. why 9. which/that 10. which/that（可省略） 【解析】 1. 先行词 a two-week wildlife camp 表示地点，用 where。 2. 先行词 a lake 表示地点，用 where。 3. 先行词 the morning 表示时间，用 when。 4. 先行词 the expert 指人，关系词在从句中作主语，复习关系代词。 5. 先行词 the place 表示地点，用 where。 6. 先行词 the reason 表示原因，用 why。 7. 先行词 at the moment 表示时间，用 when。 8. that was the reason why... 意为“那就是……的原因”。 9. 先行词 the protection project 指物，关系词在从句中作主语，复习关系代词。 10. 先行词 the photo 指物，关系词在从句中作宾语，可省略。 三、合并句子（参考答案） 1. The summer camp where we learned to protect wildlife was unforgettable. 2. I still remember the morning when we watched the birds fly south. 3. Nobody knew the reason why the whales left the bay. 4. The wetland where many rare birds spend the winter is a paradise for birds. 5. March is the month when the swallows return home. 6. Human activity is the main reason why some wild animals are losing their homes. 【解析】 1. there 代替 the summer camp，在第二句中作地点状语，用 where 合并。 2. on that morning 中的 that morning 是时间，用 when 合并。 3. for that reason 中的 that reason 是原因，用 why 合并。 4. in the wetland 是地点，用 where 合并。 5. in that month 中的 that month 是时间，用 when 合并。 6. for that reason 是原因，用 why 合并。 学科网（北京）股份有限公司 $