内容正文:
人教英语八下Unit7语法讲解及习题
现在完成时(already, yet, never, ever, just)
一、语法概念与用法详解
现在完成时表示过去发生的动作对现在造成的影响或结果,或从过去持续到现在的动作。本单元结合阅读主题,重点掌握其与 already, yet, never, ever, just 等标志词的搭配。
1. 基本结构
肯定句:主语 + have/has + 动词的过去分词(v.-ed)
否定句:主语 + have/has + not + 动词的过去分词
一般疑问句:Have/Has + 主语 + 动词的过去分词 + ...?
特殊疑问句:疑问词 + have/has + 主语 + 动词的过去分词 + ...?
用法示例
肯定:I have just finished The Romance of the Three Kingdoms.(我刚读完《三国演义》。)
否定:He has never heard of this book.(他从没听说过这本书。)
疑问:Have you decided on a book for your report?(你为报告选好书了吗?)
特殊:What have you read recently?(你最近读了什么?)
2. 核心标志词用法
标志词
含义
位置
句式
例句
already
已经(表动作完成)
句中(have/has 之后,过去分词之前)
肯定句
She’s already borrowed it from the library.
yet
还;仍(表动作未完成)
句末
否定句/疑问句
Have you chosen a book yet?
No, I haven’t finished yet.
never
从未(表动作从未发生)
句中(have/has 之后)
否定句
He’s never heard of this book.
ever
曾经(表动作是否发生过)
句中(have/has 之后)
疑问句
Have you ever read a classic novel?
just
刚刚(表动作刚完成)
句中(have/has 之后)
肯定句
I’ve just finished reading it.
3. 现在完成时与一般过去时的区别
时态
核心含义
时间标志
强调重点
现在完成时
过去动作对现在的影响/持续到现在的动作
already, yet, never, ever, just, recently, so far
现在的结果或状态
一般过去时
过去某时发生并完成的动作
yesterday, last week, in 2020, ago
过去的动作本身
对比示例
现在完成时:I have read this book.(我读过这本书。→ 强调“现在知道书的内容”这一结果)
一般过去时:I read this book last month.(我上个月读了这本书。→ 强调“上个月读”这一过去动作)
二、练习题
基础巩固
用所给动词的正确形式填空(1-5题)
1. I ___________ (just finish) reading The Little Prince.
2. ___________ you ever ___________ (hear) of this book?
3. She ___________ (already borrow) it from the library.
4. He ___________ (never read) a classic novel before.
5. ___________ you ___________ (decide) on a book for your report yet?
用 already, yet, never, ever, just 填空(6-10题)
6. Have you ___________ read The Little Match Girl?
7. I’ve ___________ finished the book. It’s really good!
8. She hasn’t chosen a book for her report ___________.
9. He has ___________ heard of this author.
10. I’ve ___________ finished my book report. Let’s go out!
能力提升
单项选择
11. —Have you ___________ read Outlaws of the Marsh?
—Yes, I’ve ___________ finished it.
A. ever; just B. never; already C. ever; yet D. never; just
12. She ___________ never ___________ of this book before.
A. have; heard B. has; heard C. have; hear D. has; hear
13. —Have you chosen a book ___________?
—Yes, I’ve ___________ chosen The Little Prince.
A. yet; already B. already; yet C. yet; yet D. already; already
14. I’ve ___________ finished my homework. Let’s play games.
A. yet B. never C. just D. ever
15. —Has he ever read this book?
—No, he ___________ never ___________ it.
A. has; read B. have; read C. has; readed D. have; readed
16. ___________ you ever ___________ to read books from different countries?
A. Have; try B. Has; tried C. Have; tried D. Has; try
17. She has ___________ borrowed the book from the library.
A. yet B. already C. never D. ever
18. I haven’t finished my book report ___________.
A. yet B. already C. never D. ever
19. —Have you ever read a classic novel?
—No, I’ve ___________ read one.
A. ever B. never C. just D. already
20. He has ___________ finished the book. He can talk about it now.
A. yet B. never C. just D. ever
21. ___________ you ___________ any books recently?
A. Have; read B. Has; read C. Have; readed D. Has; readed
22. She has ___________ heard of this author, so she wants to read his books.
A. yet B. already C. never D. ever
拓展挑战
句型转换
23. I have just finished reading The Little Prince.(改为一般疑问句)
___________ you ___________ finished reading The Little Prince?
24. She has already borrowed the book from the library.(改为否定句)
She ___________ ___________ the book from the library ___________.
25. Have you ever read a classic novel?(作否定回答)
___________, ___________ ___________.
26. He has never heard of this book.(对划线部分提问)
___________ ___________ he ___________ heard of?
27. I have chosen a book for my report.(用 yet 改写为疑问句)
___________ you ___________ a book for your report ___________?
语篇填空
Have you ever tried to read books from different countries?
At the start of this year, I 28. ___________ (decide) to read books from as many countries as possible. I 29. ___________ (begin) with The Adventures of Tom Sawyer. Today I 30. ___________ already ___________ (read) twenty different books. These books 31. ___________ (teach) me a lot about other cultures and societies, and they 32. ___________ (allow) me to see the world differently. In the past, I only 33. ___________ (know) the names of different countries, but now I understand them a little bit better. This experience has been amazing so far. I 34. ___________ never ___________ (realize) how big our world really is! I 35. ___________ (just finish) a book about Japan, and I’ve learned a lot about its culture.
三、答案与解析
基础巩固(1-10题)
1. have just finished(现在完成时,just 表示刚完成)
2. Have; heard(一般疑问句,ever 表示“曾经”)
3. has already borrowed(现在完成时,already 表示“已经”)
4. has never read(现在完成时,never 表示“从未”)
5. Have; decided(一般疑问句,yet 表示“还”)
6. ever
7. just/already
8. yet
9. never
10. just/already
能力提升(11-22题)
11. A(ever 用于疑问句,just 表示“刚完成”)
12. B(主语 she 用 has,过去分词 heard)
13. A(yet 用于疑问句,already 用于肯定句)
14. C(just 表示“刚完成”,符合句意)
15. A(主语 he 用 has,过去分词 read)
16. C(主语 you 用 have,过去分词 tried)
17. B(already 用于肯定句,表“已经借了”)
18. A(yet 用于否定句,表“还没完成”)
19. B(never 用于否定句,表“从未读过”)
20. C(just 表示“刚完成”,所以现在能讨论)
21. A(主语 you 用 have,过去分词 read)
22. C(never 表示“从没听说过”,所以想读他的书)
拓展挑战(23-35题)
句型转换(23-27题)
23. Have; just(一般疑问句,将 have 提前)
24. hasn’t borrowed; yet(否定句,将 already 改为 yet)
25. No, I haven’t(否定回答,对应 have 引导的疑问句)
26. What has; never(对“this book”提问用 what)
27. Have; chosen; yet(用 yet 改写为疑问句)
语篇填空(28-35题)
28. decided(一般过去时,at the start of this year 是过去时间)
29. began(一般过去时,描述过去的动作)
30. have; read(现在完成时,already 表示“已经读了”)
31. have taught(现在完成时,强调对现在的影响)
32. have allowed(现在完成时,强调对现在的影响)
33. knew(一般过去时,in the past 是过去时间)
34. have; realized(现在完成时,never 表示“从未意识到”)
35. have just finished(现在完成时,just 表示“刚读完”)
(
1
)
学科网(北京)股份有限公司
$