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八年级冀教版(Book 4)Unit 6 Lesson 43学案

(2011-11-16 17:05:48)
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Lesson 43学案
一、重点词汇
Machine, which
二、重点句型
1)The printing press is a machine that can make lots of books in a short time.
2)Before the printing press, books were written by hand.
3)Information began to travel much faster and much faster.
三、重点句子解析
1.The printing press is a machine that can make lots of books in a short time.印刷机是一种能在短时间内印出许多书的机器。
【巧解句构】整句话是给印刷机下定义,是一个含有定语从句的复合句。
that call make lots of books in a short time是一个定语从句,用来修饰和限定a machine。that在从句中做主语。
【要点剖析】1)lots of=a lot of可以修饰不可数名词(= much),也可以修饰可数名词的复数(= many)。意思都译为“许多”。
2)in a short time= in a moment
2.Before the printing press, books were written by hand.
在有印刷机以前,书是用手写成的。
【巧解句构】written是动词write的过去分词。此句是一般过去时的被动语态。被动语态的结构是:be+过去分词。be动词随时态变化而改变形式。
             例如:English is spoken by more than 400 million people as their first language.英语被4亿多人作为母语来说。
3.If you forgot something, you could look it up.
如果你忘记了一些事情,你可以查书。
【巧解句构】if意为“如果”,引导条件状语从句。if引导的条件状语从句常用一般现在时态表示将来,主句用一般将来时态或含有情态动词。
【要点剖析】look up是动副短语,表示“(在书、字典里)查找”,当宾语是名词时,可以放在两词的中间,也可以放在两词的后面;当宾语是代词时,必须放在两词的中间。
四、同步练习
I. 英汉互译
1.一台印刷机______________________
2.手工____________________________
3.快得很和远得很_______________________
4.a few minutes__________________________
5.on the Internet_________________________
6.make him happy_______________________
II. 根据句意及首字母提示补全单词
1.Don’t touch the m________ of computer with your hand.
2.A piano has black and white k________.
3.Look, the man is e________ the second room.
4.The cat caught two m________.
5.Please t________ in your e-mail address on the computer.
III. 根据提示写出电脑各部件的名称
1.________  looks like a TV
2.________  can show you words and pictures
3.________  there are lot of letters, numbers or words
4.________  when you press it, it puts space between words
5.________  when you press it, you get a capital letter
6.________  when you press it, you begin a new line
7.________  it can help us choose something
I. 1.a printing press 2.by hand 3.much faster and much farther 4.几分钟 5.在互联网上 6.使他快乐
II. 1.monitor 2.keys 3.entering 4.mice 5.type
III. 1.Monitor 2.Screen 3.Keyboard 4.Space Bar 5.Shift 6.Enter 7.Mouse

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