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What can do on the computer?
Write a letter, take picture, film a video, make a ppt…
Step3. Learn new words and experience.
technology n. desktop n. tablet n. keyboard n.
invitation n. industry n.
Step4. Presentation
1. Read the text once, and complete Let’s Do it 1, Check and discuss the answer as a class.
2. Complete Let’s Do it 2, then check the answer in groups。
由第2题总结if引导的条件状语从句的规则并在课文中找出例句：由if引导的条件状语从句，一般情况下主句是一般将来时、或含有情态动词、或是祈使句，从句都是用一般现在时表达将来。即：“主将/情/祈从现”。
3. Ask the students to find important the points and some questions:
(1) I like to use the Internet to read about sports and technology. 我喜欢用网络阅读关于运动和技术方面的知识。
use sb/sth to do... 用某人或某物去做某事……
【拓展】 used to do sth 过去常常做某事； be used to doing sth 习惯于去做某事；be used to do sth 被用于去做某事
(2) There are 500 people following my blog. 有500人在我博客上跟帖。
there be...doing 意为“有……正在做某事。
如： There are a lot of people playing in the park.有许多人在公园里玩。
(3) I will send my research to him by e-mail.我将通过电子邮件把我的调查发送给你。
send sth. to sb. 把某物寄送给某人；by e-mail 通过电子邮件
Step5. Listen to the tape and fill in the blanks:
Jenny likes to use the Internet about sports and technology. Jenny have a desktop computer. But now she has a tablet. Danny likes with his friends online. He use the Internet to blog. There are 500 people his blog. Brian likes doing research for his homework on the Internet. He is collecting information about the coffee . Coffee grows in more than 70 countries. He will send his to him by e-mail.
Step6. Practice (此环节根据时间而定)
Complete Let’s Do It 3. Check and discuss the answers as a class. Then have a further discussion about searching the web and using keywords to achieve the results you want.
Step7. Homework
1. Finish the exercises in your book.
2. Preview the new words of Lesson 20 板书设计 课后反思与重建Lesson 19
1. use sb/sth to do... 用某人或某物去做某事……
used to do sth 过去常常做某事；
be used to doing sth 习惯于去做某事；be used to do sth 被用于去做某事
2. there be...doing 意为“有……正在做某事