Unit 8 Let’s Communicate! 核心语法条件状语从句专项练习题 2026-2027学年人教版八年级英语上册

Unit8 Let’s Communicate! 核心语法条件状语从句专项练习题

 

## 本单元重点语法：if 引导的第一条件状语从句（主将从现）

### 核心学习要点

1. **基本规则：主将从现**

   if 引导条件状语从句（从句表假设条件），主句表结果：

   主句：一般将来时（will / won’t / be going to + 动词原形）

   从句：一般现在时（无论主语单复数，动词正常变形）

2. **句式结构**

   ① If + 一般现在时，主语 will do.

   ② 主语 will do if + 一般现在时.

3. **三种句式转换**：陈述句 → 一般疑问句 → 否定句

4. **高频易错点**

   1. if 从句绝对不能使用将来时；

   2. 从句主语三单，动词要变三单；

   3. if 与 when 区分（if 表假设，如果；when 表时间当……）；

   4. 逗号用法：if 放句首，主句前加逗号；if 在句中不用逗号。

 

## 一、选词变形填空（10道，遵循主将从现）

1 If he ____ (have) free time, he ____ (chat) with his friends online.

2 You ____ (make) more friends if you ____ (be) polite to others.

3 If it ____ (rain) tomorrow, we ____ (not go) out to meet classmates.

4 ____ she ____ (share) her feelings if you ____ (listen) carefully?

5 We ____ (solve) the misunderstanding if we ____ (talk) face to face.

6 If your brother ____ (argue) with you, you ____ (calm) down first.

7 Everyone ____ (trust) you if you always ____ (keep) your words.

8 If there ____ (be) a talk show, I ____ (invite) my deskmate to come.

9 He ____ (not open) up if you ____ (not ask) him about his trouble.

10 If you ____ (communicate) more, you ____ (know) others better.

 

## 二、单项选择题（10道，主将从现综合辨析）

1 If you ____ kind to people, they ____ willing to talk with you.

A are; will be  B will be; are  C are; are  D will be; will be

2 —Will you have a talk with him if you ____ free this afternoon?

A will be  B are  C were  D be

3 If it ____ rainy this weekend, we ____ visit the community together.

A is; won’t  B will be; won’t  C is; don’t  D will be; don’t

4 If your friend ____ upset, you ____ listen to him patiently.

A feel; will  B feels; will  C will feel; will  D feels; would

5 ____ you make more friends if you join the after-school club?

A Will  B Do  C Are  D Did

6 We won’t solve the problem ____ we talk it over face to face.

A if  B unless  C when  D though

7 If he ____ too much, he won’t listen to your advice.

A argue  B argues  C will argue  D argued

8 If you ____ keep silent, no one ____ know your true thoughts.

A will; does  B /; will  C don’t; will  D don’t; won’t

9 When I ____ time, I will chat with you.（区分if/when）

A have  B will have  C had  D has

10 If everyone ____ polite, there ____ fewer quarrels.

A is; will be  B will be; will be  C are; are  D is; are

 

## 三、句型转换（8道，if条件句改写，保持主将从现）

1 If you listen carefully, you will understand others better.（改为一般疑问句）

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2 He will make friends if he is outgoing.（改为否定句）

3 We will talk over the argument face to face.（用if it rains改写复合句）

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4 If she shares her feelings, we will help her.（对划线will help提问）

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5 You won’t trust him if he tells lies.（改为肯定句）

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6 If you don’t communicate well, you will have quarrels.（同义句，用unless）

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7 I will invite my neighbor if I have a party.（if从句提前，调整标点）

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8 If your sister argues with you, you should calm down.（统一改为will将来结构）

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## 四、句子改错（6道，每句仅一处错误，划线并改正）

1 If you will be honest, people will trust you.

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2 If he has time, he will to communicate with us.

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3 If it rains tomorrow, we will not to hang out.

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4 If she don’t listen carefully, she won’t know our ideas.

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5 Will he make friends if he will be polite at school?

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