资源简介

(共17张PPT)
The Grammar Detective Agency
A Tense Mystery
Case introduction
Client(客户): Tom
Your Mission：
Analyze the diary evidence. Correct the tense mistakes. Reconstruct the truth!
The Mysterious Diary
Task 1 Read Tom's diary carefully. Find all the tense mistakes.
Tom’s Saturday Diary
I got up at 6 am every day. But this morning, I got up at 8 because I stay up late last night! Now, I write this diary. I lose my key, so I can’t get out. I think I call my friend Mike for help as he has my spare key(备用钥匙).
Corrected Diary
Compare your corrections with the solved mystery.
Tom’s Saturday Diary
I get up at 6 am every day.
...because I stayed up late last night.
Now, I am writing this diary in my room.
I have lost my key, so I can't get out!
I think I will call my friend Mike for help...
Tom’s Saturday Diary
I got up at 6 am every day. But this morning, I got up at 8 because I stay up late last night! Now, I write this diary. I lose my key, so I can’t get out. I think I call my friend Mike for help as he has my spare key.
Tense Timeline
Task 2 Match the sentences to the correct timelines
I get up at 6 am every day.
I stayed up late last night.
I am writing now.
I have lost my key.
I will call my friend.
(一般现在时The present simple)
(一般过去时The past simple)
(一般将来时The future simple )
(现在进行时The present continuous)
(现在完成时The present perfect)
Mind Map Presentation
Detective's Tense Notebook
Tense Function Form Time Marker
The past simple (一般过去时) 过去发生的动作或产生的状态
The present simple (一般现在时)
The present continuous (现在进行时)
The present perfect (现在完成时)
The future simple (一般将来时)
Task 3 Work in groups. Fill in the table.
主语+did;
主语+was/were
every morning/day/week; always; often; usually...
Habits & truths
(习惯&真理)
主语+do/does;
主语+am/is/are
yesterday; last week/month/
year; just now; in+过去年份...
现在/当前一段时间正在进行的动作
主语+am/is/are + doing
now; at present; listen/look...
过去发生的动作对现在的影响或过去动作持续到现在
主语+have/has done
since +过去时间点; for +一段时间；up to now; so far; already；yet; ever....
将来发生的动作
主语+will do;
主语+be going to
tomorrow, next week/month/
year, in the future...
Comparison
What's the difference between the past simple and the present perfect
1. I lost my key yesterday. VS I have lost my key, so I can’t go out.
现在完成时强调过去动作对现在的影响。
一般过去时仅陈述过去事实, 和现在无关。
2. She lived in Shanghai for 3 years. VS She has lived in Shanghai for 3 years.
一般过去时仅说明动作发生于过去。(过去在上海住了三年，现已搬走)
现在完成时强调动作从过去持续到现在。(从过去到现在一直住在上海)
The past simple VS The present perfect
Practice
1.My parents ______ (decide) to go to the mountains for vacation last month.
2.She ____________ (study) very hard for the exam, so she is confident about the result.
3.The teacher ______ (stop) the class early because of the heavy rain.
4.My parents____________(buy) a new house already, and we will move in next month.
decided
has studied
stopped
have bought
不规则变化 buy-bought-bought
规则变化：辅音字母 + y 结尾，变 y 为 i 再加 -ed study-studied-studied
规则变化：以不发音的 e 结尾加 -d decide-decided-decided
规则变化：以重读闭音节且辅元辅结尾，双写末尾辅音字母再加 -ed
stop-stopped-stopped
动词过去式(did)-过去分词(done)不规则变化总结
AAA
AAB
ABA
ABB
ABC
cut-_____-______ cost-_______-_________
beat-_______-_________
run-_____-______ come-_______-_________
buy-_______-________ catch-_______-_________
see-_______-________ steal-________-_________
cut
cut
cost
cost
beat
beaten
ran
run
came
come
bought
bought
caught
caught
saw
seen
stole
stolen
Special Training: GAOKAO Challenge
1.(2023年新高考全国Ⅱ卷)As a little girl， I __________(wish) to be a zookeeper when I grew up.
2.(2018年全国Ⅱ卷)Since 2011, the country _____________(grow) more corn than rice.
3.(2022年北京卷)Gas naturally _______(have) no recognisable smell.
4.(2013年北京卷)Hurry up! Mark and Carl ____________(expect) us.
5.(2023年全国甲卷) A new school____________(build) in this area of our city next year.
wished
has grown
has
are expecting
will be built
（一般过去时）
（现在完成时）
（一般现在时）
（现在进行时）
（一般将来时）
Task 4
Task 5 Work in groups. Use different tenses to write a short passage according to the picture clues.
Writing: The Case of the Missing Trophy
Clue# 1 every morning
Jack(detective)
check the trophy(奖杯)
Clue# 2 yesterday
thief
steal-stole-stolen
Clue# 3 now
Jack(detective)
find; analyze the fingerprint
Clue# 4 tomorrow
Jack(detective)
announce; catch
Presentation
The Case of the Missing Trophy
Jack, an excellent detective, always checks the trophy every morning. However, yesterday, someone stole the trophy, and the gold trophy was gone.
Now he has an important clue. He has just found a strange fingerprint on the spot. And he is analyzing it to find the thief.
It is believed that the thief will be found soon. Jack is going to announce the result tomorrow. The thief is going to be caught and the trophy will be put back in its original place!
You've Mastered the Tools of Time:
The Past Simple
The Present Simple
The Present Continuous
The Present Perfect
The Future Simple
__________
Detective Medal
Conclusion
Keep exploring
the world of English!
Homework
1. Conclude the usage of the five tenses.
2. Polish your writing.(“The Case of the Missing Trophy”)
3. Finish the related tense exercises on your paper.

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