Lesson 23 The Internet—Good or Bad导学案（1课时）

Lesson 23: The Internet—Good or Bad ●课时重点: 1.掌握单词:advantage, di sadvantage, simple, coin, cause, less, aside, attack, web, steal, banking, properly。 会运用本课的重点短语和句型。 2.了解因特网的好处和坏处;能正确使用因特网。 一、填一填 1.be worried about 　为……担心　　　　　　2.in seconds 　在很短的时间里　　　 3.far away 　遥远 4.stay in touch 　保持联系 5.对……有害 　be harmful to... 6.除此之外 　aside from 7.个人信息 　personal information 8.在……花费;接管 　take over 二、译一译 1.它帮助我们更快地把事情做好。 It helps us get things done more quickly. 2.如果一个朋友住在遥远的地方,因特网使保持联系是容易的。 If a friend lives fa r away, the Internet makes it easy to stay in touch. 3.每件事物都有两面性。 Every coin has two sides. 4.花费太多的时间上网对人们的健康是有害的。 Spending too much time online is harmful to people s health. 5.因特网可能是一个有用的工具,但是不要让它接管你的生活。 The Internet can be a useful tool, but don t let it take over your life. 三、想一想 1.文中介绍了因特网的优势有哪些 In many ways it makes life easier and simpler. It helps us get things done more quickly. It opens up the world to us. 2.文中提到因特网的缺点有哪些 Spending too much time online is harmful to people s health. It may even cause them to be less social with family and friends. 3.在句子“Spending to o much time online is harmful to people s health.”中,我们认识到了be harmful to的用法。举一反三,你能用这个短语说一些句子吗 Smoking is harmful to us. 活动一 1.阅读课文,完成课文后的第一题,根据文章内容填写表格。 Good things about the Internet Bad things about the Internet 2.听录音,完成课文后的第二题。根据所听对话内容选择正确答案,然后核对答案。 活动二 1.小组活动,探讨一下我们能在因特网上做的事情。然后完成课文后的第三题,勾出对于中学生来说,在网上可以做的正确的事情,并给出理由。 2.两人一组就讨论的内容进行问答练习,以做到正确使用因特网。 完成任务所需的语言结构: A:Is it good for us to stay online after 10:00 p.m. B:No, it isn t. A:Why isn t it good for us B:Because it is harmful to our health. ... 活动三 小组活动,讨论我们在因特网上可以做的事情,哪些是有益的 哪些是有害的 写一篇关于怎样使用因特网的小短文,在每个小组之间进行评比,选出最佳小组。 完成任务所需的语言结构: 　　The Internet ha s changed the world. Many children like to play on the computer. In many ways it makes life easier and simpler. But sometimes Internet is harmful to us. How can we use the Internet We can chat with our friends...We shouldn t spend too much time on it... 知识超市 ●It helps us get things done more quickly. get 在这个句子里作使役动词,get st h. done 意为“使某物/事被做”。sth.与 done 存在逻辑上的动宾关系。quickly是quick的副词形式,quickly的比较级是more quickly。 做一做:单项选择。 (D)1.She gets her coat 　　　　. A.wash　　　　B.washing　　　　C.to wash　　　　D.washed (B)2.Danny went into the classroom 　　　　. A.quick B.quickly C.fastly D.slow ●Spending too much time online is harmful to people s health. too much 意为“ 太多的”,用作形容词,后接不可数名词。much too 意为“太”,是副词,后 ... ...