高中英語 Unit 5 The Power of Nature重點、難點及考點解析學(xué)案1 新人教版選修6高二

1、高二選修6 Unit 5 The Power of Nature重點、難點及考點解析一、重點單詞1volcano n.pl. volcanoes an active volcano 活火山an extinct volcano 死火山a dormant volcano休眠火山知識拓展火山學(xué) volcanology -logy: “ 學(xué)/論?！?oceanology climatology火山學(xué)家 volcanologist -ist “學(xué)家 ” pianist physicist2. consider大致有兩種含義。含義不同，用法有別。知識拓展consider作“考慮”解，常用于以下句型：con

2、sider+名詞/代詞/動名詞consider+從句或“疑問詞+不定式”。Youd better_. 你最好考慮我的建議。Im _abroad some day.我一直考慮有一天出國。Have you considered_?你們考慮他的建議了嗎？We must consider_.我們必須考慮下一步要做什么。Keys:consider my suggestion considering going what he suggested; what to do nextconsider作“認為”解時，常用于以下句型：consider sb. /sth+ (as) +形容詞/名詞 其中，as可以省

3、略。consider +sb./sth.+不定式 其中，不定式通常是to be (可以省略) 或其他動詞的完成式。consider +it+形容詞/名詞+不定式短語consider+賓語從句At first they considered me_.起初他們認為我是醫(yī)生。We consider this matter_.我們認為這件事很重要。We all consider him _the bike.我們都認為他偷了自行車。We_.我們認為學(xué)好英語很難。I consider_. 我認為幫助你學(xué)習(xí)英語是我的職責(zé)。We_. 我們這首音樂很值得一聽。 Keys:(as) a doctor (to be

4、) very important to have stolenconsider it hard to learn English well it my duty to help you with your studies consider that the music is well worth listening to3. bore vt 使(人)厭煩-I am sorry I spoke for so long-I hope I didnt bore you.bored adj. (人) 厭煩的boring adj. （物）令人厭煩的Are you getting bored of doi

5、ng the same thing everyday?The movie was so boring that I fell asleep The life is more and more boring, so many people become more and more bored.生活越來越無聊,所以很多人也變得越來越無聊 4effort n. 努力; 力氣; 努力的成果make an effort to do sth 努力做某事：It took a lot effort to lift the boxes. 抬起那些箱子要花很大的力氣。Despite all our efforts

6、 we still lost the game.盡管我們盡了全力，我們還是輸?shù)袅吮荣?。Put more effort into your work.你要更加努力地工作。Your success lies upon your effort.你成功與否取決于你的努力。He made an effort to arrive on time他盡量準(zhǔn)時到達。5risk n. 風(fēng)險，危險：He was taking a risk by overtaking on a bend. 他在轉(zhuǎn)彎處超車是在冒險。The house is a fire risk. 這房子有起火的危險短語聯(lián)想：at risk 在危險中

7、:You are at risk if you dont wear a seat belt. 不系安全帶真的會有危險。at the risk of 冒危險：At the risk of seeming rude, I must refused your request, Im afraid. 盡管似乎無理，恐怕我還是必須拒絕你的要求。6vary v. 呈現(xiàn)不同 ；改變，變化:My husband varies the vegetables he plantseach year.我的丈夫每年都種不同的蔬菜。vary fromto 由到不等；從變?yōu)?:These fish vary in pric

8、e from £3 to £5.這些魚的價格從3鎊到5鎊不等。Her mood varied from optimism to extreme depression.她的情緒由樂觀一變而極為消沉。variety (質(zhì)量，種類或特征的)變化：You need a lot of variety in your diet.你的膳食要多樣化種類，品種：different varietes of bananas不同品種的香蕉diversity n. 變化多樣，多樣性 (相當(dāng)variety):The plants of Asia show a great diversity of fo

9、rm. 亞洲的植物形態(tài)多種多樣。There must be a diversity of opinions. (對此)準(zhǔn)是眾說紛紜。7warn sb. (of /against sth.) sb. to do sb. that 1)I wont warn you again.2)The people were warned of the danger of flooding.3)The doctor warned me not to drink.（The doctor warned me against drinking.)4) I warn you that it is dangerous

10、to go out alone at night.8absolute adj. 完全的，真實的Its an absolute fact.absolutely adv.完全地，無條件地,完全對absolutely right 十分對，對極了，當(dāng)然（口語，作為對一問題的回答或評語）你讓你的孩子晚上單獨行走嗎？當(dāng)然不是。-Do you let your kids walk alone at night?-Absolutely not.二、重點短語1burn to the ground (樓房等)完全燒毀他無處棲身因為他的房子被燒掉了.He has no place to live in becaus

11、e his house has been burnt to the ground. 知識拓展burn up 燒完; 燒盡; 燒光;燒旺起來 burn down燒成平地(燒毀,燒光)burn off燒掉burn out燒掉Don't leave the gas on you might burn the house down.別忘了關(guān)煤氣爐-不然會把房子燒掉的.The house burnt down in half an hour.那所房子在半小時之內(nèi)就被焚為平地.All the wood has been burnt up.木柴全部燒光了。burn off 燒掉Burn the ol

12、d paint off before re-painting the door.先把門上的舊漆燒掉再上新漆.burn out 燒掉The hotel was completely burnt out.該旅館毀於大火.If he doesn't stop working so hard, he'll burn himself out.他繼續(xù)這樣拚命地工作，就會累垮的。2 make ones way （向某地）走（去）make one's way in life 事業(yè)有所成就 make way (for) 讓路，讓位He made his way through the c

13、rowd to greet us.他穿過人群向我們打招呼。All the traffic has to make way for a fire engine. 所有的車輛都得給救火車讓道。If you want to make your way in the world, you must learn to work hard while you are still young. 你若想要有出息，趁年輕的時候要學(xué)會發(fā)奮。知識拓展feel one way摸索前進push ones way擠過find ones way找到路，設(shè)法到達go ones way走自己的路，我行我素fight ones

14、way奮勇前進wind ones /its way蜿蜒前進lose ones way迷路3be enthusiastic (about) 感興趣的，熱心的He is enthusiastic about helping others .他熱心助人。I'm really very enthusiastic about it.我對此真的非常熱心。Despite all our efforts we still lost the game.三、重點句型Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast it will flow.本句為ing形式的完成式作狀語。如果分詞表示的動作在謂語動詞表示的動作之前發(fā)生，該分詞用完成式。 例如： Not having met the man before, I couldn'