译林版高中英语选修7教案： Unit3《The World online》Project.doc

unit 3 the world onlinezprojectteaching aims:after learning this period, the students will be able to:1. learn about two search services and what should be taken into consideration while researching on the internet;2. use the internet to do research on a topic by using the information and instructions in the text;3. make a poster explaining how they have searched and what they have step 1 lead-in (ppt 4)begin the class by asking students in what ways they get information. after the discussion, arouse students thinking by asking them, “what is the fastest growing source of information in the world today?”step 2 skimming (ppt 5-6)allow the students two or three minutes to go through the text quickly to find the answers to the questions on the screen: “when using the internet to do research, you should keep some steps in mind ” answer:step one: choosing a search servicestep two: searching for informationstep three: using your informationstep 3 careful reading for detailed information (ppt 7-14)1. step one: choosing a search service1）ask the students the following questions:what are the two search services mentioned in the guide?what do they both give us?can you set some examples of search engines?answers:search engines and subject directories.they both give us direct links.google, yahoo, lycos and excite.(2)true or false questions:search engines are a type of computer program.search engines present evaluated contents because the information has been checked by a person.you need to be patient when using subject directories because the links go to the full articles or pages.中华资源库 the links of the search engines are not classified by subject.subject directories not only present correct information, but also are up to date.answers:t f f t f来源：2. step two: searching for information1）there are several things to take into consideration when you are searching answer:information gets old.people put information on the internet.the way you type your key words makes a difference.2）find the right answer:（1）where will many sites state the date?a. in the middle of the page.b. at the bottom of the page.c. at the front of the page.d. usually on the right side.（2）according to the passage, why do we usually need to check the source of the information we find?a. because the date is too old.b. because we cant surf on personal web pages.c. because not every person bothers to read over their own writing and make corrections.d. because we are afraid of virus.（3）which of the following web pages is much better for doing research on the internet?a. personal web pages.b. pages managed by organizations and companies you trust.c. government pages.d. b and c.（4）according to the passage, if you want to learn about swimming but you dont want any information about swimming, you should type _.a. sports swimmingb. “sports”- “swimming”c. “sports”+ “swimming”d. sports-swimminganswers:bcdb3）step three: using your informationfill in the blanks:to copy the words just as you found them is not only cheating, but also not legal. so remember to:write an _ of the information you have found.use your own _ and make your own _ about what it means._ a list of the _ you got your information from.answers:outline; words; decisions; attach; sitesstep 4 language points （ppt15-19）a. important phrases:1. do research on2. keep in mind3. be classified by4. be linked to5. make a decision6. be divided into7. a bunch of 8. up to date9. take into consideration10. as a general rule11. be sure about12. make a difference13. search for14. belong to15. a list of16. follow these tipsb. key words:1. keep . in mind (= remember sth. firmly) e.g. its a good idea. i will keep it in mind.来源：translation:来源：你要牢记，你是否努力会影响你的成绩。_ _.answer:you must keep it in mind that whether you work hard or not will affect your grades. 2. take into consideration (= consider sth.)e.g. we must take safety into consideration first when climbing the mountain.finish the sentence:we should take _ into consideration when researching on the internet. 3. consult v. (= ask sb. for information or advice)e.g. i consulted with john about buying a house.have you consulted your doctor about your illness?step 5 doing a project (ppt 20-22)1. planning: grouping the students into a team of four and decide on the topic of their research.(1) your topic _.(2) what kind of search service is best for the topics you are interested in?(3) how will you check your information and decide which sites to trust?2. preparing: the questions below will help you get organized:(1) who will do the research?(2) who will write up the information?(3) who will design and illustrate the poster?(4) who will present the poster to the class?(5) how will you organize your poster?3. producing:each member of the group starts his/ her work within the time due. before the given time is due, remind the students to edit their