资源简介

(共21张PPT)
Unit 1 Past and present
Grammar
1 在复习Reading语境中，获取与梳理现在完成时的形式特征和表意功能，以及规则动词与不规则动词的过去分词的形式变化规律；
2 设置不同情境中不同层次的练习，巩固与内化现在完成时与一般过去时的区别；
3 准确运用所学时态介绍月光镇在交通出行方式、生活环境改善等诸多方面的发展变化。
1 In the context of reviewing the Reading section, identify and sort out the formal characteristics and expressive functions of the Present Perfect Tense, as well as the formation rules of past participles for both regular and irregular verbs.
2 Design multi-level exercises in different scenarios to consolidate and internalize the differences between the Present Perfect Tense and the Simple Past Tense.
3 Accurately apply the learned tenses to introduce the development and changes of Moonlight Town in various aspects such as transportation modes and living environment improvement.
Teaching aims
Fill in the blanks according to the text and pay attention to the words in bold.
Great changes have taken place in Shenzhen over the 40 years. Once it was just a small village in southern China, but now it has become a world-famous city. Since the r______ and opening-up policy in the 1980s, Shenzhen has attracted millions of people to work and live here. With i__________ at the heart of the city, Shenzhen has risen to be an important center for China's high-tech i________. As a result, e_________ young talent from across the world has come to Shenzhen. The city has won an h_____ from UNESCO for encouraging reading among the public. It's really a wonderful place to visit.
eform
nnovation
ndustries
xcellent
onor
have taken
has become
has attracted
has risen
has come
has won
Present perfect tense
have/has done
(past participle of verbs)
What can we discuss using the present perfect tense
How is the past participle of a verb formed
1. The present perfect can talk about events that have (or haven’t) happened before now. The exact time of the event is unspecified. The adverbs ever, never, just, before, yet（negative, yes-no question）, still , and already (formative) are often used with the present perfect.
-- Have you ever been to Shenzhen
--No, I haven't. I’ve never been there. But Andrew has.
--I haven’t visited Shenzhen yet.
2. We use the present perfect tense (often used with since and for ) to talk about an action that started in the past and continues to the present.
Since the late 1970s, Shenzhen has developed at an amazing speed.
Shenzhen has developed at an amazing speed for over 50 years.
adverbial phrases often used with the present perfect tense: recently, so far, up to now/up till now, in the past few years/weeks/days, over the last year/month, over the years
3. We use the present perfect tense to talk about an action that happened in the past and has a connection with the present.
Tom is looking for his key. He can't find it.
He has lost his key.
He has lost his key= He lost it recently, and he still
doesn't have it.
I have lost my key.
He told me his name, but I 've forgotten it.
(= I can't remember it now)
The present perfect can also express an event that has occurred repeatedly from a point in the past up to the present time. The event may happen again.
--How many times have you been to Shenzhen
--I have visited Shenzhen three times since last summer.
Find out which sentences in the conversation use the present perfect tense and determine which usage of the present perfect tense they belongs to.
Millie: I’ve just found out many things about Shenzhen from my uncle. He’s lived there since he finished college.
Sandy: Really What did he tell you
Millie: He said there are a lot more jobs now in Shenzhen, and the living conditions are much better.
Sandy: That’s nice. Did he tell you anything else
Millie: Yes. Transport has also improved a lot. People can get around the city easily.
Sandy: Wow! I hope one day I can visit Shenzhen. Have you been to Shenzhen before
Millie: I’ve only been there once, but I’m planning to go there again this summer. You can join me!
Sandy: Great idea!
no exact time
continue to the present
a connection with the present
no exact time
no exact time
Sunshine Town (1) ______________ (change) a lot over the years.
The government (2) _____ just ________ (turn) part of the town center into a new park.
Recently, the air in our town (3) ______________ (improve) a lot.
Some people in the countryside (4) ______ already _______ (move) to new buildings.
Last year, the government (5) _______ (build) an art museum.
I (6) ______________ (not visit) the museum yet.
Millie is making notes about the changes in Sunshine Town. Complete her notes with the correct forms of the verbs in brackets.
has changed
have
moved
has improved
turned
built
haven’t visited
has
Present Perfect VS Past Simple
Tom is looking for his key. He can't find it.
He has lost his key. (present perfect)
This means that he doesn't have his key now.
Now Tom has found his key. He has it now.
Has he lost his key No, he has found it.
Did he lose his key Yes, he did .
He lost his key (past simple)
but now he has found it. (present perfect)
The present perfect (something has happened) is a present tense. It always tells us about the situation now. 'Tom has lost his key'= he doesn't have his key now .
The past simple (something happened) tells us only about the past. If somebody says 'Tom lost his key', this doesn't tell us whether he has the key now or not. It tells us only that he lost his key at some time in the past.
began in the past and continue to the present
began and ended in the past
has no connection with the present
I've just lost my key.
I lost my key yesterday.
found
has worked
left
went
returned
has
have visited
bought
Millie is watching an interview. A reporter is interviewing a foreigner who has lived in Shenzhen for many years. Read the interview script and fill in the blanks with the correct forms of the verbs in brackets.
have lived
have been
have been
are
Have
have fallen
noticed
enjoy
Talk about the changes in Moonlight Town, using the correct tenses.
Topic Great changes have taken place in Moonlight Town over the years. Facts Past Present
Environment _____ roads, , large open spaces… ______ streets, ____trees
_____ buildings
Life ____houses, rest in the shade of a tree ___ flats, computers,
smart phones
Transport
Opinion Now people are enjoying a comfortable life. Many changes have taken place in Moonlight Town over the years.
In the past, there were only narrow and muddy roads in the small town. There was rubbish everywhere. But now the streets are wide and clean, with many green trees on both sides. The government has also built tall buildings in some large open spaces.
Years ago, people lived in small old houses. Now most of them have moved into new flats. They used to rest in the shade of trees in their free time, but now they surf the Internet with computers. Moreover, smart phones make life much easier now.
In the past, people traveled around the town on foot or by bicycle, but now they can go around by taxi. Many families even have their own cars.
Now people are enjoyin a comfortable life.
Sample

展开更多......

收起↑