Unit 3 Science versus nature 导学案 2.doc

Unit 3 Science versus nature 导学案 2学习目标: 1. 语言目标anti-， dis-， in-， im-， pre-， pro-， re-， un-， -able， -ful， -ist， -less， -ment， -ness， brain， lung， liver， heart， stomach， kidney. 2.能力目标Understand the meanings of some prefixes and suffixes and learn the organs of human body3.学能目标Learn how to guess the meanings of words by looking at their prefixes and suffixes.学习重点:Learn word formation with prefixes and suffixes. 学习难点:How to use these prefixes and suffixes. 自主预习:I. Prefixes and suffixesappear， novel， regular， respect We are going to have some questions. Please use these words to help you， but you need to add some letters to the words first.1) You cannot find your new pen. What happened to your pen？2) Many people respect Mr. Li and think he is a good man. He helps people out and is a good citizen and friend. So can you find a word to describe Mr. Li？3) Miss Wang has published several books. She loves her job writing novels. So what is Miss Wangs occupation(职业)？4) Some ads say that if you take their pills， you will be healthy， look younger， become smarter and sleep better. What can you say about this kind of ads？independence prefix(前缀)root(词根)suffix(后缀)Prefix: a group of letters that is added to _ of a word _.Suffix: a letter or a group of letters added to _ of a word _.Attention:Usually a prefix will change the meaning of word， while a suffix willchange the part of speech of a word. Sometimes you can guess what a word means by looking at its prefix or suffix. Look at the examples and work out the meanings.Complete what an environmentalist is saying on Page 46. Competition:Can you think of more words that can be added with these prefixes and suffixes？anti- dis-in- im-pre- pro-re- un-able -ful-ist -less-ment -nessII. Organs of the bodyRead the passage in Part B on page 47. Complete the passage individually.知识要点:1. similar :adj. looking or being almost， but not exactly， the same: 我买了一些新鞋和我以前的一双相似. 短语：be similarto 和相似 be similarin 在相似 similarity:n. C or UThis magazine is very _ with young people， who like its content and style. (2007湖北) A. familiar B. popular C. similar D. particular2. remove: v.1)to take sth. or sb. away from somewhere， or off