一、用所给词的适当形式填空或者填入适当的引导词。
1. You won't pass the exam you study harder.
2. If it (rain) tomorrow, we will stay at home and watch TV.
3. you hurry up, you will be late for the meeting.
4. I will call you if I (get) the news.
5. You can't get good grades you listen carefully in class.
6. Unless she (come) here this afternoon, we won't wait for her.
7. If they are free tomorrow, they (go) to the park.
8. you want to be healthy, you should eat more vegetables and fruits.
9. He won't finish the work on time he works hard.
10. Unless it (snow), we will go on a picnic this weekend.

1. unless 2. rains 3. Unless 4. get 5. unless
6. comes 7. will go 8. If 9. unless 10. snows

【分析】
本题考查条件状语从句的用法，核心是掌握if（如果）和unless（除非，相当于if not）引导的条件状语从句的规则：一是根据句意判断选用if还是unless；二是遵循“主将从现”时态原则，即主句用一般将来时，从句用一般现在时。解题时先理解句子逻辑，确定引导词，再根据从句主语的人称/数变化动词形式。
【解析】
1. 句意：除非你更努力学习，否则你不会通过考试，表“除非”用unless；
2. if引导条件状语从句，主句为一般将来时，从句用一般现在时，主语it是第三人称单数，故rain变rains；
3. 句意：除非你快点，否则开会会迟到，表“除非”用Unless；
4. if引导条件状语从句，主句为一般将来时，从句用一般现在时，主语是I，故用get；
5. 句意：除非上课认真听讲，否则不能取得好成绩，表“除非”用unless；
6. unless引导条件状语从句，主句为一般将来时，从句用一般现在时，主语she是第三人称单数，故come变comes；
7. if引导条件状语从句，从句为一般现在时，主句用一般将来时，故go变will go；
8. 句意：如果你想健康，应多吃蔬果，表“如果”用If；
9. 句意：除非他努力工作，否则不能按时完成工作，表“除非”用unless；
10. unless引导条件状语从句，主句为一般将来时，从句用一般现在时，主语it是第三人称单数，故snow变snows。
【答案】
1. unless 2. rains 3. Unless 4. get 5. unless 6. comes 7. will go 8. If 9. unless 10. snows
【知识点】
条件状语从句、一般现在时、一般将来时
【点评】
本题聚焦初中英语核心语法点，需熟练掌握if/unless引导的条件状语从句的“主将从现”规则，以及根据句意选引导词，属于基础题型，是考试常考内容。
【难度系数】
0.3

二、用所给词的适当形式填空或者填入适当的引导词。
Tom is a middle school student. He knows that study is very important. If he works hard, he ¹. (get) good grades. ². he doesn’t listen carefully in class, he won’t understand what teachers say. And ³. he takes notes regularly, he may forget some important knowledge.
Tom also realizes that health is necessary for study. If he stays up late at night, he ⁴. (feel) tired in class the next day. So he tries to go to bed early. ⁵. he gets enough sleep, he can’t study effectively.
In his free time, Tom likes reading books. He believes that if he reads more, he ⁶. (be able to) learn more about the world. He also knows that ⁷. he keeps a dictionary by his side while reading, he may have trouble understanding some new words.
Tom wants to make more friends at school. He thinks that if he is friendly to others, they ⁸. (be) friendly to him too. But ⁹. he communicates with his classmates actively, he won’t make many friends.
To sum up, Tom understands that there are many things he needs to do to improve his school life. If he does these things, his life ¹⁰. (become) better and he will make greater progress in both study and life.

1. will get 2. If 3. unless 4. will feel 5. Unless
6. will be able to 7. unless 8. will be 9. unless 10. will become

【分析】本题考查真实条件状语从句的用法，核心规则为“主将从现”（if引导的真实条件状语从句用一般现在时，主句用一般将来时），同时需辨析连词if（如果，引导肯定条件）与unless（除非，相当于if not，引导否定条件）的用法。解题时，先判断每个句子的条件逻辑（肯定/否定），再结合“主将从现”原则确定动词的将来时形式，或选择合适的引导词。
【解析】1. 此处为if引导的真实条件句，从句用一般现在时（works hard），主句需用一般将来时，故填will get；2. 后半句为“他上课不认真听就不会懂老师说的”，是肯定的条件关系，用If；3. 句意是“除非他定期记笔记，否则可能忘记重要知识”，是否定的条件关系，用unless；4. if引导的条件句，从句用一般现在时（stays up），主句用一般将来时，故填will feel；5. 句意是“除非他有足够睡眠，否则不能有效学习”，是否定条件，用Unless；6. if引导的条件句，从句用一般现在时（reads），主句用一般将来时，be able to的将来时结构为will be able to，故填will be able to；7. 句意是“除非他读书时带字典，否则难理解生词”，是否定条件，用unless；8. if引导的条件句，从句用一般现在时（is），主句用一般将来时，故填will be；9. 句意是“除非他主动和同学交流，否则交不到很多朋友”，是否定条件，用unless；10. if引导的条件句，从句用一般现在时（does），主句用一般将来时，故填will become。
【答案】1. will get 2. If 3. unless 4. will feel 5. Unless 6. will be able to 7. unless 8. will be 9. unless 10. will become
【知识点】条件状语从句、一般将来时、连词辨析
【点评】本题围绕初中英语核心语法点——真实条件状语从句展开，重点考查“主将从现”规则及if与unless的词义辨析，题型基础，注重对基础语法的应用，适合巩固初中英语语法知识。
【难度系数】0.4