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1、Unit 3 Science and nature Word power Quiz Fill in the blank with proper words.1. My pen _. I cannot find it. (appear)2.The book is on the top shelf. Im not so tall that I am _ to reach it. (able)disappearedunable 3. Its _ for him to catch the early bus. Because he got up too late this morning. (poss

2、ible)4. _ leads to quarreling. (understand)impossibleMisunderstanding Prefix Example Meaninganti-dis- in-il-im-ir-pre-re-un- preview early, beforerecreate againuncertain not, opposite ofanti-smoking against, opposed to disappear not, opposite of incorrectillegalimmoralirresponsible not, without Some

3、 other words with prefix: invisible inactive inadvisableimbalance immobilerecall reuse represent recreateunlock unexpected unwise Note: Prefix: a group of letters that is added to the beginning of a word to change its meaning. 1. Mr Li is _. He is always helping others and a good citizen. (respect)2

4、. Miss Wang is a _. She loves her job writing novels. (novel)3. The teachers words were a great _ to him. (encourage)respectablenovelistencouragement 4. Hangzhou is so _ that it attracts many visitors. (beauty)5. The accident happened because of his _. (care)beautifulcarelessness suffix example mean

5、ing-able-ful-ist-less-ment-ness comfortable worthy of, able to becheerful full ofscientist sb. who does sth.agreementhopeless withoutindicate a statedryness indicate a quality Some other words with suffix:careless treeless development governmentlaziness silliness nervinessSuffix: a letter or a group

6、 of letters added to the end of a word to make a different word. Lets fill in the blanks with what we learned just now.irresponsible illegal disrespect harmful uncertain I am strongly against cloning humans. I think it is _ for us to do that. People who want to clone human beings show their _irrespo

7、nsible disrespect for nature. They are hardly aware of the _ effects of cloning humans. It is _ what a cloned human being would be like. It could turn out to be a monster! In my opinion, tight laws should be put in place to make cloning human beings _.harmful uncertain illegal Work in groups of four

8、 and try to give more prefixes and suffixes and list several words as examples. Discussion Organs of the bodyRead part A. Fill in the blanks with the names of body parts.Think of the body like a school. At the top of the school is the headmaster, known as the _. This is the organ that controls the r

9、est of the organs, just like the headmaster controls the school. After this comes the _. brain heart It is like a teacher. This organ pumps the blood around the body so it can run well. This is similar to the knowledge a teacher gives to students. Next is the _, which is the only one that can re-gro

10、w itself. It helps to clean the blood. This is like the knowledge students get from teachers. Students always grow with newly found knowledge. liver The _are the organs of the body that use the oxygen we breathe. Think of the oxygen as the life we lead at school. The _ is very useful as it stores th

11、e food we eat until we can digest it properly. This is similar to the learning process. We store the information for later revision, so this organ is like our notebook. The _are the organslungs stomach kidneys that remove waste products from the blood and produce urine. They are like the cleaners, r

12、epairmen and security guards who look after our school. Now you can see how similar our school life is to our body and we can look after them both. Language points 1. work out1) 計算出, 制定出, 結果為We are going to work out a new plan.Who can work out this physical problem?2) exercise 鍛煉, 運動He keeps on work

13、ing out to lose weight. work on 從事某項工作，繼續(xù)工作work at 學習，研究，致力于; 在 下功夫他正在撰寫一本新詞典。He is working on a new dictionary.Im working at my study.我正在努力學習。 2. opposed to:opposed adj. 反對的，對抗的，對立的opposed to 反對 ; 與 相對立我們堅決反對在國與國之間實行強權政治。We are firmly opposed to the practice of power politics between nations. 真理是謬誤

14、之對。Truth is opposed to falsehood.opposed to = in opposition to 3. opposite ofopposite n. 對立面，對立物Whats the opposite of tall ?1) adj. 對面的，相對的on the opposite side of the street2) adj. 相反的，對立的go in the opposite direction朝相反的方向去 3) prep. 在的對面live opposite the post office住在郵局對面4) adv. 在對面He stood opposite

15、. 4. in favor of1) 贊同 ，支持 be in favor of sbs suggestion2) 有利于 The score was 2 to 1 in favor of the guest team.比分為二比一，客隊獲勝。 favor1) n. 好感，歡心win sbs favor贏得某人的歡心2) n. 恩惠do sb. a favor = do a favor for sb.幫某人一個忙May I ask a favor of you?請您幫個忙行嗎? favorable adj. 贊成的，有利的He is favorable to our plan.a favora

16、ble situation他贊成我們的計劃。有利的形勢 5. worthy ofbe worth doing sth.sth.be worthy of being doneto be doneof sth.be worth 后可跟表示價值的名詞, 而be worthy后不可以 The city is worth visiting.The city is worth a visit.The city is worthy of being visited.The city is worthy to be visited.The city is worthy of a visit.The book

17、is worth five yuan.The book is worthy of five yuan. X 6. characterizecharacterize vt.表示 的特性，成為 的特性be characterized as a man of principle.被描繪成一個有原則的人characteristic n. 特性，特征the characteristics of the present situation目前形勢的特點 7. care1) vt. 介意I dont care how far Ill have to go.無論走多遠，我都不在乎。2) vi. 關心，擔心，計

18、較 (for/about)care for sbs safety為某人的安全擔心He doesnt care about his clothes.他不講究衣著。 3) vi. 喜歡，愿意 (for/ to do)Would you care for a game of table-tennis?I dont care to go there.我不愿到那兒去。I dont much care about going.我不太想去。 8. achieveachieve vt. 贏得，取得，實現(xiàn)We have achieved success in developing the product.ach

19、ievement 2) u n. 完成, 達到, 成功celebrate the achievement of ones goals.achievable adj. 能達到的1) c n. 業(yè)績, 成就, 成績Winning three gold medals is a remarkable achievement. 9. be similar tobe similar to 與 相似A is similar to B in man ways.similarity n. 類似點，類似物Are there any similarities between the two?10. newlynew

20、ly-builtnewly-marriednewly-bornnewly-published新建的新婚的新生的新出版的 11.think ofasthink oflike看作認為 是think of oneself as/like a common solider把自己看成普通戰(zhàn)士think twicethink much ofthink little ofthink aloudthink over重新考慮 認為 很不錯 認為 沒什么了不起自言自語仔細考慮 Revise what we learned in this class and prepare for the checking. Homework