Unit1-2动词不定式作主语表语-2025-2026学年高中英语期末语法复习选择性必修3（人教版）

期末语法复习 选修3·人教版·Unit1-2:动词不定式作主语、表语 一、动词不定式作主语、表语的核心用法详解 动词不定式作主语、表语是高中英语重要语法，动词不定式(o十动词原形)可充当句 子主语表示具体动作，充当表语说明主语的内容或性质，核心在于掌握其在句中的功能 及基本用法。 考点一：动词不定式作主语 结构：不定式直接位于句首/It+be+名词/形容词+(forb./ofsb.)+不定式(it作形式 主语) To learn English well is important.It is important to learn English well 真题再现： up early is good for your health 【2023XX省高二期末】 A)Get B)Getting C)To get D)Got 答案：C It is necessary for us hard for the final exam. 【2022XX市高二质检】 A)study B)studying C)to study D)studied 答案：C 考点二：动词不定式作表语 结构：主语+be+不定式（表示主语的具体内容、目的或将来的动作） My dream is to become a doctor./The first step is to finish the task on time. 真题再现： Her main goal this term_improve her English speaking skills.【2023XX市高二期末】 A)is to B)will C)was D)being to 答案：A The most important thing for students_study hard and stay healthy.【2022XX省联考】 A)are to B)is to C)was to D)were to 答案：B 考点三：不定式作主语时的逻辑主语 结构：for sb.+不定式（表示动作的执行者，用于修饰事物的形容词后）/ofsb.+不定 式（表示人的品质，用于修饰人的形容词后，如kind,clever,.foolish等） It is difficult for him to solve the problem.It is kind of you to help me. 真题再现： It is wise you to give up smoking 【2023XX市高三一模】 A)for B)of C)with D)to 答案：B It is necessary_us to learn basic life skills. 【2022XX省高二联考】 A)of B)for C)with D)by 答案：B 考点四：不定式的否定形式 结构：not+不定式（否定词not置于不定式符号to之前） To not make mistakes is impossible.It is important not to waste time. 真题再现： The teacher told us late for class again. 【2023XX市高二期末】 A)not be B)don't be C)not to be D)to not be 答案：C It is polite loudly in public places. 【2022XX省模拟】 A)not speak B)to not speak C)not to speak D)don't speak 答案：C 二、考点综合训练 (一)单项选择 1.early in the morning helps improve your concentration. A)Get B)Getting C)To get D)Got 2.It is important_us_a balance between study and rest A)for,to keep B)of,to keep C)for,keep D)of,keep 3.Her only wish is_a teacher after graduating from college. A)become B)becoming C)to become D)became 4.The doctor warned himtoo much salt in his diet. A)not eat B)to not eat C)not to eat D)don't eat 5.It was careless_youyour keys in the classroom. A)for,to leave B)of,to leave C)for,leave D)of,leave (二)完成句子 1.每天阅读英文报纸是提高词汇量的好方法。 English newspapers every day is a good way to improve vocabulary. 2.他的目标是下个月底前完成这个项目。 His goal isthe project by the end of next month 3.对孩子们来说，学会独立思考很必要。 It is necessary children_independently 4.老师建议我们不要在考试中作弊。 The teacher advised us_cheat in the exam. 5.你能帮我搬这个重箱子真是太好了。 It is kind you me carry this heavy box (三)短文改错 1.To not be late for the meeting,we decided to take a taxi. 2.It is necessary of students to master basic computer skills. 3.Her dream is become a famous pianist in the future. 4.The manager told his secretary not send the email without his approval. 5.It was clever for him to solve the problem in such a short time. (四)语法填空 Reading is an important skill,and(develop)good reading habits is key to success.It is nec- essary_students_(spend)at least 30 minutes reading every day.Many experts suggest _(choose)materials that interest you,as this makes reading more enjoyable.However,it is also important_(not limit)yourself to only one type of book.By reading widely,you can learn new ideas and improve your vocabulary.Remember,-(read)regularly is not just a task,but a lifelong habit that will benefit you greatly. (五)参考答案与解析 1.单项选择答案：1.C2.A3.C4.C5.B 2.完成句子答案： 1.To read 2.to finish 3.for,to think 4.not to 5.of,to help 3.短文改错答案： 1.To not→Not to2.of→for3.become→to become 4.not send→not to send5.for→of 4.语法填空答案： to develop;for,to spend;to choose,not to limit,to read 英语语法复习手册·选修3·人教版·Unit1-2:动词不定式作主语、表语