Unit2 Topic3 What can we do at home to protect the environment.Section A课件（25张，无素材）

Unit 1 The Changing World
Topic 3 The world has changed for the better .
Section A

Teaching aims：
1.Knowledge aims：
掌握本课的重点词汇和短语，初步学习并列句和提建议。
2.Skill aims:
能够给别人提出合理的建议。
能够正确地运用连接词写出并列句。
能够把所听到的听力材料先归纳再填空。
3.Emotional aims: (optional)
鼓励学生在日常生活中自觉践行环保行为。
4.Culture awareness: (optional)
---Have you_____ been to Beijing ?
---Yes, I have . I have _____ come back .
---No, I haven’t . I have _____ been there .
2. ---How long have you been in Beijing?
---I have been there there for two weeks.
---I have been there since last week.
ever
just
never
Who can describe Beijing?
In the past
Nowadays
New York
What took place in New York?
As a matter of fact/ In fact, Lucy is good at dancing.
As a matter of fact/ In fact, I am strong.
as a matter of fact = in fact
1b Listen to 1a and tick what was mentioned about New York.
In the past
terrible traffic
dirty streets
unfriendly people
dangerous to live
fewer shopping centers
Nowadays
beautiful parks
clean and fresh air
huge markets
famous museums
good schools
excellent restaurants
1c Work in pairs and describe New York to your partner based on 1b. You may start like this :
A: How much do you know about the traffic in New York ?
B: I heard that the traffic there was terrible . Do you have any ideas about the streets there ?
A: …
Complete the sentences with since or for.
1. You have been in New York _____ a long time.
2. The city has improved a lot _____ I came here a few years ago.
for
since
You have been in New York for a long time.
for a long time
came to New York
present
past
sb. have/ has been in... 某人一直在……
e.g. I have been in the new school for a week.
for a week
last week
present
past
for + 时间段
..., but the city has improved a lot since I came here a few years ago.
since I came here a few years ago
came here
present
past
since +从句（从句谓语动词用过去式）
e.g. She works in the school since 1995.
since 1995
lived
present
past
since +时间点
e.g. He has waited for Tom since two hours ago.
since two hours ago
8:00
present
past
since + 时间段+ago
10:00
I have worked in the school for three years .
=I have worked in the school since three years ago .
=I have worked in the school since 2011.
=I have worked here since I came to the school .
for+时间段
since+时间段+ago
since+时间点
since+从句
3 Look carefully and think about the differences between since and for in 1a. Then complete the sentences with since or for and listen and check.
1.I have lived in Beijing ______ three years.
______2011.
2. He has waited for Tom ______ two hours ago.
______ two hours.
3. We have learned chemistry ___ one month.
____ the new term
began.
for
for
for
since
since
since

n.化学
n.学期
Fill in the blanks with for or since.
1. His father has been dead ______ he was
ten years old.
2. Michael has been away from the army
______ six years.
3. He has been in Chongqing _______2003.
4. My brother has had a car ______ two
months.
5. Tom has kept a book ______ 5:00 a.m.
since
for
since
for
since
2 Listen to the passage and fill in the blanks with the correct forms of the given words or phrases .

Broadway is a street in New York . It has been there____
1811. It ________ be dirty. But it ____________ since the
1920s. The area near Times Square is the home of
Broadway theaters . There have been many famous
______ along the street for many years . A lot of artists
perform plays , concerts and operas there . Every year
millions of visitors come to enjoy the ________ music and
dance on Broadway . ______________ , Broadway stands for the American theatre industry .
since
used to
theaters
wonderful
As a matter of fact
has improved
n.艺术家
n.参观者
n.产业，工业
theater used to improve wonderful
as a matter of fact since
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.艺术家
n.产业，工业
n.产业，工业
n.参观者
n.参观者
millions of 用法：
在英语中hundred , thousand , million , billion等词，当其前面有数词时，它们不加 “s”使用，其后也不用介词of .直接跟可数名词的复数形式。 如：five million people 五百万人
当表达不确定数字时，在它们后面加上 “s”再加介词of使用。后接可数名词的复数形式，表示 “数百” “数千” “数百万” “数十亿”。如：
millions of people 数百万人
4 Work in groups and talk about the place you live. Compare today’s situation with that of the past. The following dialogs may help you.
A:I have been in … for /since …
B: How do you like living there ?
A: It is … / Very good. /I really…
B: Was the local traffic terrible /good/…?
A: Yes./No, it was … / used to be … in the
past, and now it is …
B: …
Let's make a report .
like this :
I have been in … for /since …
It is … I really like living there.
It used to be … in the past,
and now it is …
Summary:
We learn:
We can:
1. Some words: block, artist, visitor, industry, chemistry,term
2. Some phrases: as a matter of fact , millions of
3. Some sentences:
1. You will get used to it very soon if you come.
2. As a matter of fact , it’s a wonderful place to live .
3. You must come for a visit .
4. Then you can see New York yourself .
Use the Present Perfect Tense with for and since .
1.You have been in New York for a long time.
2.The city has improved a lot since I came here a few
years ago .

Homework
2. Make five sentences , using for and since.
1. Read 1a aloud.
4. Preview Section B.
3. Finish Section A in your workbook.
Thank You!