make our world more beautifulPPT教学课件

思维训练 课内练习
一、选择：
( D) 1. ___ you afraid ___ dogs?
A. Do, from B. Are, from C. Do, of D. Are, of
( C ) 2. Jack ___ the band for about 6 years.
A. joined B. has joined C. has been in D. is
He has had this bike for three years.
我们从小就认识了。
We have known each other since we were children.
Ask and answer
A: How long have you been a member of Greener China? B: I’ve been with Greener China for a year. A; What have you done since you joined Greener China? B: I’ve written a book on the environment.
He has been at this school since 2000
He has been at this school for over two years. He has been at this school since over two years ago.
He has been at this school since he came to this schoo
All the _m__e_m__b_e_r_s_ of the family will _c_o_m__e__b_a_c_k__f_o_r__
the Spring Festival.
7.5 镜子改变了什么
➢ 教材分析 ➢ 学情分析 ➢ 重点、难点 ➢ 教法、学法 ➢ 教学过程
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Unit 3
Make our world more beautiful
Lesson 9
思维启动 课前预习
解释词语：
( F ) 1. be afraid of ( C ) 2. a year and a half ( B ) 3. TV station ( A ) 4 .become dirty ( E ) 5. more than ( D ) 6. make ……beautiful
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你能根 据镜子 中的像 说出小 华左、 右腿的 前后位 置吗？
你能根 据镜子 中的像 说出小 华左、 右腿的 前后位 置吗？
小明放假去外地看爷爷，他买的 是11点的火车，由于去的早，小明 不小心睡着了，等他醒来的时候， 他从镜子中看到背面墙上的电子钟 上显示 : ，他吓了一身汗，认 为自己错过了火车，同学们，小明 到底能不能赶上11点的火车呢？
注意：从过去持续到现在的用法中，谓语动词通常是
延续性动词，如 live, stay, study, learn, know, teach, wear, be, keep（借）, have（买） 等
这本书你借了多久了？ How long have you kept the book? 这辆自行车他已经买了三年了。
3.自从两年前，他就一直在这里。
He ____h_a__s_b_e_e_n__h__e_r_e_s_i_n_c_e___________ two years ago.
4.他什么也不怕。
He ___i_s__a_f_r_a_id__o_f__n_o_t_h_i_n_g_____________.
5.家中的每个成员都将回来过春节。
for +一段时间 since +过去动作开始的时间 since+从句（一般过去时态）
现在完成时态用法二
用来表示过去开始，持续到现在的动作或状态，可以和表 示从过去某一时刻延续到现在（包括现在在内）的一段时 间状语连用，如 for three years,since 1993,since I was a child等
at this factory in this team in this band a teacher
a year and a half make machines
three months
play games
half a year
play concerts
more than 5 years teach computer science
a year and a half make machines
three months
play games
half a year
play concerts
more than 5 years teach computer science
小结
词汇：pour waste dirty be afraid of
Why are they going to the TV station and the
newspaper ? Because businessmen are afraid of newspapers and TV stations.
时间图表
过去 → → → → → → 现在
1988
2000
2002
He has been at this school since over two years ago.
He has been at this school since he came to this school.
Look and think 时间状语用?
How long has he been at this school?
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镜子改变了什么 方向
现实中的物与镜中的像关于镜 面成轴对称
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如果在纸条上写着“A、B、C、D、E、X、 Y、Z”，那么下面情况中，哪些字母在镜中 的像与原来的字母一样？
dirty?
•What has happened to the fish in the river?
Lots of fish have died.
What will they do with the factory?
They want to write a story about it to the TV station and the newspaper.
C. has waited, for D. have waited, since
( A ) 5. My mother has taught English ____ over 20 years.
A. for
B. since
C. of
D. after
二、动词填空：
1. How longh_a_v_e_ you _li_v_e_d(live) in the city? I _h_a_v_e_l_iv_e_d_ (live) here for 15 years. When _d_i_dyou m__o_v_e (move) here? Ic_a_m_e(come) here in 1987. 2. How many times _h_a_s_your uncleb_e_e_n(be) to the USA? He __h_a_s _b_e_e_n__ (be) there twice. He __w_e_n_t__ (go) there to study math in 1945. Hed_i_d_n_’t_r_e_t_u_rn____(not return) until 1951. Last year, he _w_e_n_t___ (go) there again.
He was born in 1988, fourteen years ago.
He came to this school just over two years ago.
He has been at this school since 2000.
He has been at this school for over two years.
A.变脏 B.电视台 C.一年半 D. 使……美丽 E. 超过 F.害怕
Listen and answer What has the factory been ?
It has been pouring _w_a_s_t_e_w_a_t_e_r_i_n_to__
the river near it
and the newspaper ?
Where has Hu Lan just been ?
She has just been to a paper factory.
Because the factory has been pouring waste water into it.
Why has the river near the factory become
Answer the questions
• 1. Where has Hu Lan just been ? • 2. Why has the river near the factory
become dirty? • 3. What has happened to the fish in the
river? • 4. What will they do with the factory? • 5. Why are they going to the TV station
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小冬上衣上的数字是什么？小亮上衣上 的字母又是什么？
一辆汽车的 车牌在水中 的倒影如图 所示，你能 确定该车车 牌的号码吗？
如果已知物和像中的一个求 另一个时，通常用的方法是：
1、利用镜子照(注意镜子的 位置摆放) 2、利用轴对称性质
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A: How long have been at this school? B: For over two years. A: How many English words have you learned since you came? B: About one thousand.
at this factory in this team in this band a teacher
( B ) 3. We have known each other____ we were young.
A. for
B. since
C. after D. before
( D ) 4. The police ___ for the man ____ five hours ago.
A. have waited, for B. has waited, since
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向 日 葵
凡·高《包 扎着耳朵 的自画像》
从照镜子开始
从照镜子开始
镜 子 改 变 了 什 么
1、客厅中的餐桌在小明的什么方向？
2、小明举起的是哪只手？
3、哪些数字在镜子中的像与 原来的数字完全一样？
4、将纸条在桌面上旋转90度，哪些 数字在镜子中的像与原来的数字完全 一样？如果小明举起纸条正对镜面呢？
三、翻译
1.你在这所学校已多久了？
How long _h_a__v_e_y_o_u__b__e_e_n__a_t__________ this school?
2. 我来这里已大约两年了。
I’ve _____b_e__e_n__h_e_r_e_f_o_r__a_b_o__u_t________ two years.
member join environment 日常交际用语：
How long have you been …？
I have been …for…？
What have you done since …？ 语法：现在完成时的用法二
用来表示过去开始，持续到现在的动作或状态，可以和 表示从过去某一时刻延续到现在（包括现在在内）的一 段时间状语连用，如 for three years,since 1993,since I was a child等