八年级英语下册Lesson_43_Books_or_Computer导学案

Lesson 43 Books or Computer【教学目标】1.掌握词汇及短语：machine, thousands of, on the internet ,in a shout time, much faster and much farther, in just a few , by hand2.掌握句子：a. The printing press is a machine that can make lots of books in a short time.b. Before the printing press, books were written by hands.c.Because there were more books, more people could read books.Information began to travel much faster and farther. 【教学重点】：要求掌握的词汇及短语；了解书的发展历史。【教学难点】：了解印刷史；掌握重点句子。教学步骤：预习案一、课前朗读课文，翻译下列短语1.the printing press_ 2.by hand_3.thousands of_ 4.in a few minutes_5.look up_ 6.much faster and much farther_二，、把下列句子翻译成英语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 hands.3.Because there were more books, more people could read books.Information began to travel much faster and farther. 三、通过预习课文，你的困惑是（认真合作探究，解决自己的困惑）探究案1.自主学习合作探究1. The printing press is a machine that can make lots of books in a short time.that can make lots of books in a short time 是定语从句，修饰前面的名词machine。e.g. Here is the food that Mum bought for supper.in a short time译为：_ in在这里表示“在某一时间范围内”。翻译：十分钟内我能干完这项工作。拓展：in 表示时间时，还可以表示“在之后”，“in+时间段”通常用于_.这时要用_提问。 e.g. My father （ be） back from USA in a week.(填空后对斜体部分提问)_2. Information began to travel much faster and much farther.比较级前加much意思是“得多”。可以修饰比较级的词还有_拓展：“the +比较级+主谓+其它，the+比较级+主谓+其它” 意为_,表示两个过程按比例同时增减。E.g. The busier he is, the happier he feels.译为：_. 翻译：多吃水果，我们就越健康。展示成果复述课文Before the printing press, books were written . Sometimes people worked for years to .Since the printing press were invented. It could make books a day. Because _ _ more books , more people could read books. Information began _ much faster and much farther. Books also information for you. If you forgot something, you could _it_. But the can find lots of information in just a few minutes .Which invention do you think is more important -the printing press or the Internet?课堂检测a.介词填空1. Mr Smith wrote the book_ hand _ a pen last year.2. We can find information _books and _the internet.b.完成句子，每空一词。1. 如今信息比过去传播得快得多。 Now information travels _ _ than before.2. 许多人喜欢在网上查找信息。 Lots of people like _information on the _.3. 我的祖母已经手工制作了很多篮子。 My grandma has already made many baskets _ _.4. 这个工厂里有上千名工人。 There are _ _workers in the factory.5. 你能在几分钟内找出答案吗？ Can you find the answer _ _ _ _?反思总结