Unit7语法讲解及习题动词不定式（to-infinitive）作宾语2025-2026学年冀教版八年级英语上册

冀教英语八上Unit7语法讲解及习题 动词不定式（to-infinitive）作宾语 一、语法定义 动词不定式（to + 动词原形）在本单元中主要用作某些及物动词的宾语，用来表达主语想要、希望、计划做的具体动作。 二、核心用法 （一）常见接不定式作宾语的动词 本单元核心动词： want（想要）：We want to clean Greenwood Park. like（喜欢）：Many people like to go to the park. hope（希望）：She hopes to volunteer at the library. plan（计划）：He is planning to help care for the pets. need（需要）：Volunteers need to wear comfortable clothing. decide（决定）：Tom decided to join the volunteer activity. （二）语法规则 1. 结构：主语 + 谓语动词 + to + 动词原形 + 其他 例：I want to join the volunteer team. 2. 否定形式：实义动词作谓语时，否定需在谓语动词前加助动词（don't/doesn't/didn't），谓语动词用原形，不定式保持to + 动词原形不变 例：He doesn't want to go to the park.（主语为三单，用doesn't，want用原形） 例：They don't plan to have a meeting.（主语为复数，用don't，plan用原形） 3. 不定式作宾语时，后面可接状语补充说明动作 例：We hope to finish the work early. 三、高频考点辨析 want to do（想要做某事）≠ want sb. to do（想要某人做某事） 例：I want to clean the park.（自己做） 例：I want you to help me.（让别人做） 四、习题 （一）基础层（10题·词形转换+基础填空） 用所给动词的不定式形式填空（1-5题） 1. I want __________ (join) the volunteer club. 2. They hope __________ (finish) the work this week. 3. She likes __________ (help) old people. 4. We plan __________ (clean) the park this weekend. 5. He needs __________ (wear) comfortable shoes. 否定句改写（6-7题） 6. She wants to go to the party. She __________ __________ to go to the party. 7. They plan to have a meeting. They __________ __________ to have a meeting. 一般疑问句改写（8-10题） 8. He hopes to volunteer at the library. __________ he __________ to volunteer at the library? 9. We need to bring some water. __________ we __________ to bring some water? 10. Tom decides to join us. __________ Tom __________ to join us? （二）进阶层（10题·单选+句型转换） 单选（11-15题） 11. I like __________ in the park with my friends. A. to walk B. walk C. walking 12. She hopes __________ a volunteer in the next activity. A. be B. to be C. being 13. They decided __________ the garbage in the park. A. pick up B. to pick up C. picking up 14. We need __________ comfortable clothing for the volunteer work. A. wear B. to wear C. wearing 15. He wants __________ us with the cleaning. A. help B. to help C. helping 句型转换（合并句子）（16-20题） 16. I want to do something. I want to help others. I want __________ __________ others. 17. She plans to go there. She plans to volunteer. She plans __________ __________ there. 18. They hope to finish the work. They hope to finish it early. They hope __________ __________ the work early. 19. He wants to learn English. He wants to learn it well. He wants __________ __________ English well. 20. We plan to visit the old people's home. We plan to go there next Sunday. We plan __________ __________ the old people's home next Sunday. （三）综合层（10题·短文填空+语境运用） 1. 短文填空（用所给动词的不定式形式）（21-30题） Tom went to the volunteer centre. He asked __________ (21. be) a volunteer. Julia said they needed __________ (22. clean) Greenwood Park and invited him to join. Tom wanted __________ (23. know) more about the activity. Julia explained that volunteers just needed __________ (24. wear) comfortable clothing. They would provide water, gloves and bags. Tom decided __________ (25. join) and wrote down his information. They agreed __________ (26. meet) on Saturday morning. Tom was happy __________ (27. do) something for the city. He hoped __________ (28. encourage) more friends __________ (29. join) the volunteer work. He also planned __________ (30. share) his experience after the activity. 2. 语境运用（选择合适的动词不定式完成句子）（31-35题） （可选词：to clean, to volunteer, to help, to finish, to join） 31. We need __________ the park before the weekend. 32. She wants __________ at the animal hospital this summer. 33. He hopes __________ his classmates with their homework. 34. They plan __________ the project before the deadline. 35. Many students want __________ the school volunteer team. 五、习题答案及解析 （一）基础层答案及解析（1-10题） 1. to join（want后接不定式作宾语） 2. to finish（hope后接不定式作宾语） 3. to help（like后接不定式作宾语） 4. to clean（plan后接不定式作宾语） 5. to wear（need后接不定式作宾语） 6. doesn't want（实义动词want的否定：主语she是三单，加助动词doesn't，want用原形，不定式to go不变） 7. don't plan（实义动词plan的否定：主语they是复数，加助动词don't，plan用原形，不定式to have不变） 8. Does; hope（一般疑问句将助动词does提前，hope用原形） 9. Do; need（一般疑问句将助动词do提前，need用原形） 10. Does; decide（一般疑问句将助动词does提前，decide用原形） （二）进阶层答案及解析（11-20题） 11. A（like后接不定式表示具体动作） 12. B（hope后接不定式，“hope to be”表示“希望成为”） 13. B（decide后接不定式，“decide to pick up”表示“决定捡起”） 14. B（need后接不定式，“need to wear”表示“需要穿”） 15. B（want后接不定式，“want to help”表示“想要帮助”） 16. to help（合并为“想要帮助别人”） 17. to volunteer（合并为“计划去那里做志愿者”） 18. to finish（合并为“希望早点完成工作”） 19. to learn（合并为“想要学好英语”） 20. to visit（合并为“计划下周日去拜访养老院”） （三）综合层答案及解析（21-35题） 21. to be（ask后接不定式，“ask to be”表示“请求成为”） 22. to clean（need后接不定式，“need to clean”表示“需要打扫”） 23. to know（want后接不定式，“want to know”表示“想要了解”） 24. to wear（need后接不定式，“need to wear”表示“需要穿”） 25. to join（decide后接不定式，“decide to join”表示“决定加入”） 26. to meet（agree后接不定式，“agree to meet”表示“同意见面”） 27. to do（be happy后接不定式，“be happy to do”表示“开心做某事”） 28. to encourage（hope后接不定式，“hope to encourage”表示“希望鼓励”） 29. to join（encourage sb. to do表示“鼓励某人做某事”） 30. to share（plan后接不定式，“plan to share”表示“计划分享”） 31. to clean（“需要打扫公园”，结合可选词及语境） 32. to volunteer（“想要在动物医院做志愿者”，结合可选词及语境） 33. to help（“希望帮助同学做作业”，结合可选词及语境） 34. to finish（“计划在截止日期前完成项目”，结合可选词及语境） 35. to join（“想要加入学校志愿者团队”，结合可选词及语境） ( 1 ) 学科网（北京）股份有限公司 $