Unit 4 Then and now 课件（24张PPT）

(共15张PPT)
Unit 4
Then and now
Introduce
Name ...years ago Now
Mike
Mr Brown
Mike’s grandpa
Mrs Brown
Words
名词,表示“收音机”
常用短语：listen to the radio 听收音机
about radio 关于收音机
eg： The students are listening to the radio in music class now.
同学们正在音乐课上听收音机。
小练习：你喜欢听收音机吗？
Do you like _______ _______ the _________?
listening to radio
radio
/'re?d???/
Words
名词,表示“电视机” ,完整形式为：television
常用短语：watch TV 看电视
many TVs 许多电视机
eg ：We watch TV every evening.
我们每天晚上都看电视。
小练习： （ ）People like watching _______ every evening.
A. TV B. film
A
TV
/?ti: ?vi:/
Expressions
could 表示过去的能力。而can 不表示过去特定能力,通常只限于肯定句,否定句或疑问句。
He could not write.
他不能写。
eg ：Could he speak English ?
那时候他会说英语吗？
小练习 : （ ）They __________dance in the park then .
A. do B. could
B
Expressions
wrote 是write 的过去式,主语：Mr Brown 谓语：wrote 宾语：letters 宾语补足语：to his friends.
Mr Brown wrote letters to his friends .
Mr Brown 写信给他的朋友们。
eg : Mike wrote few letters to any of his family.
Mick 没怎么给家里写信。
小练习 :Last year Yang Ling ___________(write) letters to her best
friend .
wrote
Expressions
情态动词can不能独门存在,它必须与动词原形一起构成谓语。
没有人称和数的变化。
Now he can read and watch news on the Internet.
现在他可以在网上看新闻。
eg : I can speak Chinese.
我会讲汉语。
小练习 :Amy 不会说英语。Amy __________ speak English.
他会跳舞。 He __________ dance.
can’t
can
Dialogues
Share the changes that take place around us over the years with your classmates!
Expand
四大发明是指中国古代对世界具有很大影响的四种发明。即造纸术、指南针、火药、活字印刷术。
中国四大发明
造纸技术的发明,是中华民族对世界文明的杰出贡献之一。 它的发明地点是洛阳。
指南针是用以判别方位的一种简单仪器。前身是司南。常用于航海、大地测量、旅行及军事等方面。
Expand
用硝石、硫磺和木炭这三种物质混和制成的,而当时人们都把这三种东西作为治病的药物,所以取名“火药” ,意思是“着火的药”。
中国四大发明
活字印刷术开始于隋朝的雕版印刷,经宋仁宗时的毕升发展、完善，产生了活字印刷,并由蒙古人传至了欧洲,所以后人称毕升为印刷术的始祖。
Summary
radio TV
write-wrote
could/can/can’t
Exercise
1. Seven years ago, I _________ write , but I ________ read.
A. can, can’t B. could not , could C. could not, can

2. My father does ________ on the Internet.
A. shopping B. shops C. shoping
B
A
Exercise
3. I ___________ a letter to my uncle last night.
A. write B. writed C. wrote

4. Helen ___________ this storybook two days ago.
A. read B. reads C. readed
C
A
Exercise
5. I have e-friends from all _________ the world.
A. of B. over C. on

6.Ten years ago, I ___________ the telephone to ___________ people.
A. use , call B. used, called C. used, call
B
C
Homework
Complete story framework alone and recite the article !
一般疑问句 Did you catch any fish ? Yes, I did .
句型结构 Did +主语+动词原形+其它 ？ Yes，主语+did. \
No, 主语+ didn’t .
特殊疑问句 What did you do there ?
How was your holiday , Mike ? We went to the Bound .
It was fun.

句型结构 特殊疑问词+一般疑问句+？ 主语+动词过去式规则与不规则变化 。