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1、Unit 3 Science versus natureWord powerStep1: Brainstormingable agree appear lead novel regular respectPlease answer the following questions by adding some words to the above words.1. You can not find your new pen. What happened to your pen? (It disappeared.)2. You want to get the book on the top she
2、lf, but you are not tall enough. Do you think you will be able to reach the book? (I am unable to do so.)3. The two groups at the meeting dont agree with each other. They argued fiercely. So what is the problem between them called? (Disagreed.)4. Many people respect Mr Li and think he is a good man.
3、 He helps people out and is a good citizen and friend. So can you find a word to describe Mr Li? (Respectable.)5. Miss has published several books. She loves her job writing novels. So what is Miss Wangs occupation? (She is a novelist.)6. You can not find the order of the numbers in a group of numbe
4、rs. So can you find a word to describe the order of the numbers? (It is irregular.)7. 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? (They are misleading.) Do you know the meanings of these prefi
5、xes and suffixes? Can you think of more words that can be added with these prefixes and suffixes.Step 2: Prefixes and suffixes1. Look page 46. There are two tables about prefixes and suffixes and their meanings. Work in pairs and read the examples to each other. You need to explain the meanings of t
6、he sample words in you own words to your partners.2. Work in pairs and find more examples to add to the tables. We will hold a competition in five minutes. The pair with the most correct examples wins.3. Finish the exercises on page 46 individually. You should understand the passage and the exact me
7、anings of the prefixes and suffixes.Answers(1) illegal (2) disrespect (3) hopeless (4) uncertain (5) understandable 4. You will be divided into several groups and make a list of prefixes and suffixes and meanwhile give some more examples.5. More prefixes and suffixes for you to know: (1) There are s
8、ome other prefixes which can be used to represent opposite meanings of the original words. de- decompose declassify mal- maltreatment malnutrition non- non-smoker non-alcoholic non-profit(2) There are some other prefixes which are widely used in English.auto- automaker automobile bi- bilingual bilat
9、eraldown- downhill downstairs downwards ever- everlasting evergreen evermore half- halfway halfbaked half-payfull- full-colour full-size full-page hand- hand-made hand-picked hand-washpost- postgraduate post-industrial over- overeat overdue overworkmid- midday midlife midnight(3) Suffixes that are u
10、sed commonly are as follows.-al cultural national original -ent different dependent existent-ian Canadian Belgian -like childlike dreamlike lifelike-proof waterproof soundproof bulletproof-en widen sharpen shortenStep3: Organs of the body1. Look at the pictures of the major organs of the body in Par
11、t B on page 47. Pronounce each organ correctly and know what they each refer to.2. Try to revise what you have learnt about the different expressions about organs. One student can act as a teacher, pointing to any part of his or her body and the rest pronounce the organ.3. Read the passage in Part B on page 47. Complete the passage individually.Answers (1) brain (2) heart (3) liver (4) lung (5) stomach (6) kidneys 4. Complete Part C in pairs or groups .Step4: HomeworkRead the article in Part A on page 113 in Workbook and then do Part B on the same page2
