初一英语：初一语法突破——现在进行时完整攻略
一、什么是现在进行时？
现在进行时（Present Continuous Tense）用来表示此时此刻正在进行的动作，或现阶段正在进行的动作。
核心公式：be动词 + 动词的现在分词（-ing形式）
结构速览
| 句子类型 | 结构 | 示例 |
|---|---|---|
| 肯定句 | 主语 + be(am/is/are) + V-ing | I am reading a book. |
| 否定句 | 主语 + be + not + V-ing | He is not playing football. |
| 一般疑问句 | Be + 主语 + V-ing? | Are you watching TV? |
| 特殊疑问句 | 疑问词 + be + 主语 + V-ing? | What is she doing? |
二、be动词的选择
| 主语 | be动词 |
|---|---|
| I | am |
| 单数主语 / He / She / It | is |
| 复数主语 / We / You / They | are |
记忆口诀：
I用am，you用are，is用于他她它； 单数主语用is，复数主语全用are。
三、动词-ing形式的构成规则
| 情况 | 规则 | 示例 |
|---|---|---|
| 一般动词 | 直接加-ing | do→doing, read→reading, play→playing |
| 以不发音e结尾 | 去e加-ing | make→making, write→writing, have→having |
| 重读闭音节，末尾只有一个辅音字母 | 双写末尾字母再加-ing | run→running, swim→swimming, get→getting |
| 以ie结尾 | 变ie为y再加-ing | die→dying, lie→lying, tie→tying |
例题1： 写出下列动词的现在分词形式： - eat → __ - dance → _ - sit → - write → ___
解析： - eat → eating（直接加-ing） - dance → dancing（去e加-ing） - sit → sitting（双写t加-ing） - write → writing（去e加-ing）
四、标志词（看到它们就用现在进行时）
| 标志词 | 含义 | 例句 |
|---|---|---|
| now | 现在 | I am doing my homework now. |
| at the moment | 此刻 | She is singing at the moment. |
| listen / look | 听/看（语气词） | Look! The boys are playing basketball. |
| right now | 现在 | They are having dinner right now. |
| these days | 这些天 | He is studying Chinese these days. |
五、句型转换例题
例题2： 将下列句子改为现在进行时，并按要求变换句型。
原句：Tom / read / a book / in the library
肯定句： Tom is reading a book in the library. 否定句： Tom is not reading a book in the library. 一般疑问句： Is Tom reading a book in the library? 肯定回答： Yes, he is. 否定回答： No, he is not. 特殊疑问句： Where is Tom reading a book?
六、易错点辨析
易错1：be动词遗漏
❌ I reading a book. ✅ I am reading a book.
记住： 现在进行时的be动词不能少！
易错2：非延续性/静态动词不用进行时
以下动词一般不用于现在进行时： - 感官动词： see, hear, smell, taste - 情感动词： like, love, hate, want, prefer - 状态动词： be, have（有）, know, understand, believe - 所属动词： belong, own, possess
✅ I like this book.（不能说 I am liking this book.）
易错3：忘记双写
❌ runing, swiming ✅ running, swimming
规律： 重读闭音节末尾只有一个辅音字母时，一定要双写！
七、实战练习
练习1：用所给词的正确形式填空
- Listen! Someone ______ (sing) in the next room.
- It's 7 p.m. now. My family ______ (have) dinner.
- Don't make noise. The baby ______ (sleep).
- What __ you ____ (do) right now?
- Look! The girls ______ (dance) on the playground.
练习2：按要求改写句子
- She is washing her clothes.（改为否定句）
- They are playing basketball on the playground.（对划线部分提问：playing basketball）
参考答案
练习1： 1. is singing 2. are having 3. is sleeping 4. are...doing 5. are dancing
练习2： 1. She is not washing her clothes. 2. What are they doing on the playground?
八、总结
| 要点 | 内容 |
|---|---|
| 结构 | be + V-ing |
| be动词 | I→am, 单数→is, 复数→are |
| -ing规则 | 一般直接加，去e加-ing，重读双写，ie变y |
| 标志词 | now, look, listen, at the moment |
| 易错 | 别忘be动词，注意双写，静态动词不用于进行时 |
小结： 初一现在进行时是初中英语最重要的时态之一。掌握"be + V-ing"的核心公式，牢记动词-ing的四种变化规则，注意易错点，就能轻松应对各类考题！