现在完成时和一般过去时的比较

A 篇章学习:朗读对话，回答问题

Mom: Come on, Jerry. Have you eaten your eggs?

Jerry: Yes, I have, Mom. I have eaten two eggs already.But I haven't drunk milk yet. I'm full.

Mom: OK. Put on your socks and shoes. We should go to school now.

Jerry: But I can't find my socks, Mom.

Mom: Did you put them under the bed?

Jerry: No, I didn't. I put my shoes under the bed yesterday.But I didn't put my socks there last night.

Mom: Did you put them in your shoes?

Jerry: Oh, yes, I did. I found them. Let's go, Mom.

B 语法聚焦1：现在完成时和一般过去时的区别

小贴士注

意： 现在完成时强调发生在过去已完成的动作对现在造成的影响和后果。

一般过去时并不强调对现在造成的影响或后果。

例： We have cleaned the classroom. It's clean now.

(强调教室已经打扫干净，现在还是干净的状态。)

We cleaned the classroom yesterday.

(不强调教室现在的状态，只是陈述昨天打扫教室这个动作。)

练习1　选择正确的时态填空。

C 语法聚焦2：现在完成时和一般过去时的否定句及一般疑问句的区别

现在完成时通过 have / has 的变化来转换成否定句或疑问句。一般过去时则需要增加助动词did或was / were。

练习2　选择适当的助动词补全句子。

D 语法聚焦3：现在完成时和一般过去时的时间状语

练习3　选择合适的单词或短语填空。

1 yesterday / already

He did his homework _____________________.

He has _____________________ finished his homework.

2 in 2019 / since 2019

His family moved to Beijing _____________________.

His family has lived in Beijing _____________________.

3 a week ago / before

Jerry went to Guangzhou _____________________.(www.xing528.com)

Jerry hasn't been to Guangzhou _____________________.

单元练习

练习4　使用所给动词的现在完成时或一般过去时完成下列对话。

1 teach

— Who _______________ you English last term?

— Mr. Jones. He _______________ us English since 2019.

2 buy

— When _______________ you _______________ this red skirt?

— Last year. I _______________ three skirts like this already.

3 visit

— Tom _______________ already _______________ the college.

— When _______________ he _______________ the college?

— Last weekend. He _______________ it with me.

4 read

— _______________ you _______________ this book yesterday?

— Yes, I _______________ already _______________ it three times.

练习5　按要求改写下列句子。

1 I bought a new bike 3 days ago. (改为否定句)

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2 There was a clean river near my school. (改为否定句)

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3 I have lived in Shenzhen for 3 years. (改为否定句)

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4 Gina has written 3 books since 2012. (改为一般疑问句，并做肯定回答)

_______________________________________________________________

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5 She cooked a big dinner yesterday. (改为一般疑问句，并做否定回答)

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