1、冀教版英语课件八下unit4lesson23学练优八年级英语下（学练优八年级英语下（JJJJ）教学课件教学课件Unit 4 The Internet Connects UsLesson 23 The InternetGood or Bad?advantagedisadvantagesimplecoincauselessn.优势；有利条件优势；有利条件n.缺点；不利因素缺点；不利因素adj.简单的；简明的简单的；简明的n.硬币硬币v.造成；引起造成；引起adj.&adv.更少更少/小的小的(地地)n.较少量；较小的部分较少量；较小的部分Words and expressionsasideatta
2、ckwebstealbankingproperlyadv.除除之外；在旁边之外；在旁边v.袭击；损害袭击；损害n.网络；网网络；网v.偷盗；窃取偷盗；窃取n.银行业银行业adv.正确地正确地Does the Internet make life simpler?How?Why are some parents worried about their kids using the Internet?Lead inRead the lesson and fill in the table.Good things about the InternetBad things about the Inte
3、rnet1.It makes life easier and simpler.1.Spending too much time online is harmful to peoples health.Good things about the InternetBad things about the Internet2.It helps us get things done more quickly.3.It opens up the world to us.4.It is easy to stay in touch with friends.2.It causes them to be le
4、ss social with family and friends.3.Some people attack the web or steal others personal information.Language points1.People are able to connect and share information in seconds.几秒钟之内，人们几秒钟之内，人们就能够相互联系并分享信息。就能够相互联系并分享信息。be able to do sth.意为意为“能能,能够能够”，主要，主要指具体做某件事的能力，有人称和时态的指具体做某件事的能力，有人称和时态的变化。情态动词变
5、化。情态动词can也表示也表示“能能,会会”，只，只有现在时有现在时can和过去时和过去时could两种时态，没两种时态，没有人称变化。有人称变化。Can you come tomorrow?明天你能来吗？明天你能来吗？He said that we could go there by bus.他说我们可以乘公共汽车去那里。他说我们可以乘公共汽车去那里。Will you be able to come tomorrow?明天你能来吗？明天你能来吗？Im able to do the work all by myself.我能够独立做这项工作。我能够独立做这项工作。in seconds 短时间内
6、；几秒钟之内短时间内；几秒钟之内 You press a button and it comes on in seconds.你只要触摸按键，它就会在几秒内启动。你只要触摸按键，它就会在几秒内启动。2.It helps us get things done more quickly.它能使我们把事情做得更快。它能使我们把事情做得更快。get sth.done“完成，做完某事完成，做完某事”，通常由，通常由自己完成。此外，自己完成。此外，get/have sth.done还有还有“让某人做某事让某人做某事”的意思。的意思。I am going to get/have my hair cut.我要
7、去剪发。我要去剪发。3.And if a friend lives far away,the Internet makes it easy to stay in touch.如果朋友住得很远，互联网使相互联系变如果朋友住得很远，互联网使相互联系变得容易。得容易。“make+it+adj.(+for sb.)+to do”意为意为“使做某事变得使做某事变得”。The teacher tried to make it interesting for the students to learn math.老师尽力使数学对学生们来说学起来有趣。老师尽力使数学对学生们来说学起来有趣。far away 遥
8、远的；在远处遥远的；在远处Suddenly they seem to be hearing something from far away.突然，他们似乎听到什么声音从远处传来。突然，他们似乎听到什么声音从远处传来。I finished college and live far away from her.我完成了大学的学业，住得离她很远。我完成了大学的学业，住得离她很远。4.But every coin has two sides.但是任何事物都有两面。但是任何事物都有两面。Every coin has two sides,so does the Internet.凡事都有两面性，因特网也是
9、如此。凡事都有两面性，因特网也是如此。5.Spending too much time online is harmful to peoples health.在网上花太多的时间对人们的健康有害。在网上花太多的时间对人们的健康有害。be harmful to 对对有害处有害处Smoking can be harmful to your health.吸烟会对你的身体有害。吸烟会对你的身体有害。6.It may even cause them to be less social with family and friends.它甚至会导致他们与家人和朋友较少来往。它甚至会导致他们与家人和朋友较少
10、来往。cause意为意为“造成，使造成，使(发生发生)”，其后可直接，其后可直接跟造成的结果或发生的事情作宾语，也可跟造成的结果或发生的事情作宾语，也可跟双宾语或接动词不定式复合结构作宾语。跟双宾语或接动词不定式复合结构作宾语。Smoking can cause lung cancer.吸烟可引发肺癌。吸烟可引发肺癌。What caused her to cry?是什么使她哭了是什么使她哭了?7.Aside from that,some people attack the web除那之外，一些人还攻击网站除那之外，一些人还攻击网站aside from 除除以外以外 Aside from hea
11、daches,he showed no signs of lasting brain damage.除了头痛，没有任何迹象表明他曾受过脑除了头痛，没有任何迹象表明他曾受过脑损伤。损伤。8.The Internet can be a useful tool,but dont let it take up all of your time.互联网可能是一种有用的工具，但不要让它互联网可能是一种有用的工具，但不要让它占据你所有的时间。占据你所有的时间。take up 占用（时间）；占据（空间）占用（时间）；占据（空间）The table takes up too much room.这张桌子太占地方
12、。这张桌子太占地方。I wont take up any more of your time.我不再占用你的时间了。我不再占用你的时间了。Lets Do It!Listen to the dialogue and tick the correct answers.1.What are Li Ming and Wang Mei talking about?Their school project.Their homework.2.Why does Wang Mei think the Internet is good?She can chat with her friends easily.Sh
13、e can watch TV programs.3.Li Ming thinks they should use the Internet_.carefully and freely properly and carefully in seconds far away aside from take up Every coin has two sides.在数秒内在数秒内遥远的；远离遥远的；远离除除之外之外占据占据任何事物都有任何事物都有两面性。两面性。Exercises.Fill in the blanks with correct words.1.In this economy you n
14、eed every _(优势优势).2.The problem is by no means as _(简单简单的的)as we first thought.3.This may all seem like a distant dream,but it is not so _ _(遥远的遥远的).advantagesimplefar away4.You can include contact information so you can _ _ _(保持联系保持联系).5.As a popular saying goes,every_(硬币硬币)has two sides.6.Televisi
15、on can also be_(有害的有害的)to us.stay in touchcoinharmful7.What _(导致导致)the illness?8.He _ _(占用占用)too much time to play computer games every day.9._ _ being fun and good exercise,swimming is a very useful skill causestakes upAside from.Translate the following sentences.1.整个操作在数秒钟内完成。整个操作在数秒钟内完成。The whole
16、 operation was over in seconds.2.我们会坚持不懈，直到这项工作完成。我们会坚持不懈，直到这项工作完成。We will stay on it until we get the job done.3.请记住一切都有对立面。请记住一切都有对立面。Please remember that every coin has two sides.4.练习使学好英语变得容易。练习使学好英语变得容易。Practice makes it easy to lean English well.5.花太多时间玩电脑对孩子的眼睛有害。花太多时间玩电脑对孩子的眼睛有害。Spending too much time on playing computer games is harmful to childrens eyes.6.别让睡觉占用你太多的时间。别让睡觉占用你太多的时间。Dont let sleep take up too much of your time.Write a passage to talk about the advantages and disadvantages of the Internet.(50-100 words)HomeworkThank you!
