ENGLISH GRAMMAR · GRADE 9

Vol.01

初三英语 · 语法专题

Present Perfect

Tense

现在完成时 —— 连接过去与现在的桥梁

Grade 9 · Junior High·English Grammar Series

现在完成时 · Present Perfect Tense

— 2026 —

CHAPTER 1 · INTRODUCTION

02 / 08

Chapter 1

什么是现在完成时？

现在完成时用来描述过去发生的动作对现在造成的影响或结果。
它连接了"过去"和"现在"两个时间维度。

PAST

动作发生了

→

NOW · PRESENT

有结果 / 有影响

什么是现在完成时

— · —

CHAPTER 2 · STRUCTURE

03 / 08

Grammar · 句型结构

基本结构

FORMULA

Subject + have / has + Past Participle

have → I, You, We, They (复数主语)

has → He, She, It (单数主语)

过去分词 = V-ed / 不规则变化

肯定

She has finished her homework.

否定

I haven't (have not) seen that movie.

疑问

Have you ever been to Beijing?

简答

Yes, I have. / No, I haven't.

基本结构 · Subject + have/has + Past Participle

03 · Structure

USAGE 1 · RESULT

04 / 08

Usage 1 · 已完成用法

过去 → 现在：结果

强调过去发生的动作对现在造成的结果或影响。
动作本身什么时候发生的并不重要，重要的是"现在怎么样了"。

I have lost my keys. 我丢了钥匙。（现在还没找到，进不了门）

She has gone to Shanghai. 她去上海了。（现在不在这里）

He has finished his homework. 他做完作业了。（现在可以玩了）

They have bought a new car. 他们买了新车。（现在有车了）

已完成用法 · 强调对现在的影响

04 · Result

USAGE 2 · EXPERIENCE

05 / 08

Usage 2 · 经历用法

ever / never · 经历

谈论"人生经历"——到目前为止做过或没做过的事。
常见搭配：ever（疑问句）、never（否定句）

Have you ever eaten sushi?

你吃过寿司吗？（在你人生中）

I have never been to the Great Wall.

我从未去过长城。

Has she ever tried skiing?

她滑过雪吗？

This is the best book I have ever read.

这是我读过最好的书。

经历用法 · ever 疑问 / never 否定

05 · Experience

USAGE 3 · SIGNAL WORDS

06 / 08

Signal Words · 标志词

常见标志词

这些词出现时，句子通常要用现在完成时：

already

已经（肯定句）

I have already finished.

yet

还未（否定/疑问）

Have you finished yet?

just

刚刚

She has just left.

ever

曾经（疑问句）

Have you ever been there?

never

从未

I have never seen that.

since / for

自从 / 持续

since 2020 / for 5 years

标志词 · Signal Words

06 · Signal Words

PRACTICE · EXERCISES

07 / 08

Practice · 练习

用所给词的适当形式填空

1. I (finish) my homework .

2. She (never / be) to Shanghai.

3. you (eat) breakfast yet?

4. They (already / see) the movie.

5. He (just / arrive) at the airport.

6. We (live) here since 2018.

7. she (ever / try) skiing?

8. I (not / see) you for a long time.

ANSWER KEY → 1. have finished, already / 2. has never been / 3. Have, eaten / 4. have already seen / 5. has just arrived / 6. have lived / 7. Has, ever tried / 8. haven't seen

Practice · Fill in the blanks

07 · Exercises

SUMMARY · KEY TAKEAWAYS

08 / 08

Summary · 小结

现在完成时

STRUCTURE

have/has + V-ed

USAGE

Result · Experience · Duration

KEY WORDS

already / yet / just / ever / never / since / for

"Practice makes perfect."
熟能生巧 · Keep practicing!

Present Perfect Tense · 现在完成时

— End —