1、Unit4Then and nowIntroduceWords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 radioradio/red/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 wat
2、ch 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 ATV/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 BExpressionswrote 是write 的过去式,主语：Mr B
3、rown 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.wroteExpressions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 wat
4、ch 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.cantcanDialogues 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
5、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。Summaryradio TVwrite-wrotecould/can/cantExercise1.Seven years ago,I _ write,but I _ read.A.can,cant B.could not,could
6、C.could not,can 2.My father does _ on the Internet.A.shopping B.shops C.shoping BAExercise3.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 CAExercise5.I have e-friends from all _ the world.A.of B.over C.on6.Ten years ago,I _ the telephone to _ people.A.use,call B.used,called C.used,callBCHomeworkComplete story framework alone and recite the article!
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