冀教版英语八年级下册Lesson 19课件

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1、八年级英语（JJ下）教学课件,Unit 4,Lesson 19: How Do You Use the Internet?,Key words & phrases: technology, desktop, tablet, keyboard, invitation, industry, used to do sth., chat with, blog about, do research, work hard, know about Key sentences: 1. I used to have a desktop computer, but now I have a tablet. 2.

2、I like chatting with my friends online.,Learning Targets,3. I use the Internet to blog about donuts. 4. If we want to have a meeting, I can send the invitation online. 5. If I work hard this evening, I will complete my research. 6. Coffee grows in more than 70 countries!,The parts of a computer,Lead

3、 in,Do you have a computer?,What do you often do with your computer?,Words and expressions,technology desktop tablet keyboard invitation industry,n. 技术 n. 台式电脑；桌面 n. 平板电脑；牌；碑 n. 键盘 n. 邀请 n. 工业；企业；行业,used to do sth. chat with blog about do research work hard know about,过去常常做 和聊天 关于的博客 做研究 努力工作 知道；了解,

4、a tablet,keyboard,a laptop,a desktop computer,invitation,industry,What can you do on a computer? How do you use the Internet?,THINK ABOUT IT,Read and answer.,1. What does Jenny like to use the Internet to do?She likes to use the Internet to read about sports and technology. 2. What does Danny like d

5、oing?He likes chatting with his friends online.,Presentation,3. How many people are following Dannys blog?500 people. 4. What can Danny and his friends do if they want to have a meeting?They can send the invitation online.,5. What does Brain like doing on the Internet?He likes doing research for his

6、 homework. 6. How will Brain send his research to his grandpa?By e-mail.,Read the lesson. Tick the things that Jenny and her classmates like to do on the Internet.,watch movies,shop,write blogs,chat online,play games,read,send or receive e-mails,listen to music,do research for homework,make friends,

7、1,Lets Do It!,Fill in the blanks with the correct forms of the given verbs.,1. If you work hard, youll _(get) there in the end.2. If you dont stop him, he will _ (play) games the whole day.,get,play,2,3. If it _ (rain) tomorrow, Danny will not go to the supermarket to buy donuts.4. If you _ (go) to

8、bed now, Ill read you a bedtime story.,rains,go,Here is a search homepage. Can you find the information you need? Fill in the blanks using the category headings.,3,1. A game lover can click on “_” to play computer games. 2. If I want to improve my spoken English, Ill go to “_”.,Computer & Internet,L

9、anguage,3. “_” has some excellent movies. 4. If John wants to know more about China, he will click on “_”. 5. “_” helps Jack get information about Oxford University.,Entertainment,Society & Culture,Education,Language points,1. I used to have a desktop computer, but now I have a tablet. used to do st

10、h. 过去常常/过去惯常做某事 例：We used to be good friends, but fell apart about a year ago.我们过去曾经是好朋友，但大约一年前关系破裂了。,Language points,be/ get/ become used to +n./ doing sth.习惯于（做）某事 例： Get used to the idea of celebrating your successes. 要有取得成功时为自己庆祝的习惯。 I become used to getting up early in the morning.我习惯早上早起。,2. I

11、 like chatting with my friends online. chat with 和聊天 例：How do you make friendly chat with your colleagues?你如何和同事进行友好的聊天呢？Here you can chat with friends, breathing fresh air.在这里你可以呼吸新鲜的空气, 和朋友畅聊。,3. I use the Internet to blog about donuts. blog n. 博客；网络日志 例：I promised not to post them on my blog. 我保证

12、过不把它张贴到我的博客上。 vi. 写日志；写博客 例：John has a belief that everyone should blog about something they are passionate about.约翰认为, 每个人都应在自己的博客上写他们感兴趣的事情。,4. If we want to have a meeting, I can send the invitation online. 此句是由if 引导的条件状语从句，主句是含有情态动词(can)的一般现在时，根据需要从句多用一般现在时(want)。 例：You should be quiet if you ar

13、e in the reading room. 在阅览室应保持安静。,5. If I work hard this evening, I will complete my research. 此句是由if 引导的条件状语从句，如果主句是一般将来时，从句用一般现在时。 例：If all of us make a small change in our life, it will make a big difference to our environment. 如果我们都在生活中做出一点小的改变，对环境而言将产生大的不同。,6. Coffee grows in more than 70 count

14、ries! more than 多于；超出；比多 A.“more than+名词”表示“不仅仅是”。 例：Jason is more than a lecturer; he is a writer, too. 杰森不仅仅是个演说家，他还是个作家。,B. “more than+数词”表示“以上/不止” 例：I have known David for more than 20 years. 我认识大卫二十多年。 C. “more than+形容词”表示“非常/很”。 例：In doing scientific experiments, one must be more than careful

15、with the instruments. 在做科学实验的时候，必须很小心仪器。,D. more than + (that)从句, 其基本意义是“超过(=over)”, 但可译成“简直不, 远非, 难以，完全不能 (其后通常连用情态动词can)。 例：That is more than I can understand. 那非我所能懂的。,if 引导的条件状语从句 定义：if“如果，假如”，它引导的句子表示某事发生所需的条件，即“在条件下，某事才能发生”，在句子中充当状语，因此称之为条件状语从句。 位置：if引导的条件状语从句既可以放在句子前，也可以放在句子后。从句位于主句之前时，常用逗号将其

16、与主句隔开。,Grammar,时态：（1）if条件状语从句中，主句用一般将来时，从句用一般现在时表示将来。主将从现原则。 例：We will go to the park if it doesnt rain tomorrow.如果明天不下雨的话我们将去公园。 （2）if条件状语从句中，如果主句有must、can、may等情态动词，从句用一般现在时。主情从现原则。 例：You must stop crossing the road if the traffic light is red. 如果交通灯是红色的你必须停止穿过马路。,（3）当if条件状语从句中，主句是祈使句，从句用一般现在时表示将来。

17、主祈从现原则。 例：Dont wait for me if I am late.如果我晚了就不用等我了。 （4）if引导的条件状语从句中，主句是一般过去时，从句使用与过去相关的某种时态。 例：If he got up earlier yesterday, he would not miss the early bus.如果他昨天早点起床，他就不会错过早班车。,（5）如果if引导的条件句谈论的是一种真理或客观事实时，无论从句是什么时态，主句都用一般现在时。 例：If the boy heated metal yesterday, the metal melts.如果昨天那个男孩把金属加热，它就会

18、融化。 【注意】 （1）在if引导的条件状语从句中，当主句是一般将来时时，不能够使用be going to结构，而要用will。,例：Ill help you with your English if I am free tomorrow. 如果明天我有空，我会帮你学英语。 （2）在if引导的条件状语从句中不能够使用some，而要用any。 例：If you have any questions to ask, please come to my office.如果你有问题要问的话，请到我办公室来。,一、根据所给汉语提示，完成下列句子。 1. Walk _ (向前) and you will

19、see the white building. 2. The bridge _ (连接) the two parts of the city.,Exercises,forward,connects,3. On the television _ (屏幕) we see lots of people dancing. 4. You should stop _ (喊) at the children. 5. Is there any chicken on the _ (菜单)? 6. It is easy to search for information on the _ (因特网).,Inter

20、net,screen,shouting,menu,1.李明过去常常使用这台电脑 Li Ming _ _ _ this computer. 2.如果你没有时间，我就为你做这件事。 Ill do this for you _ _ _ _ time. 3.这个问题很容易回答 This question is _ _ _. 4.你可以通过电子邮件告诉我你的地址。 You can tell me your address _ _ . 5.我不知道如何使用这台计算机。 I dont know _ _ _ this computer.,used to use,if you dont have,easy to

21、 answer,by e-mail,how to use,二、根据汉语意思完成句子。,三、用括号内所给单词的适当形式填空。 1. If the rain _ (stop) tonight, we will go to the cinema. 2. Ill buy a computer if I _ (have) enough money. 3. If the fog _ (get) thicker, the plane might be diverted.,stops,have,gets,Summary,1. Learn some new words and expressions. 2. Learn about the development of the computer. 3. Know about how to use the computer.,Homework,Write a passage about how you use the Internet. (50-100 words),