9．The preventive measures for forest fires include some preemptive（搶先）methods that can help reduce the risks of fires and control their severity and spread，and thus，maintain ecological balance and protect resources．Close monitoring of forest fires caused by natural factors can help prevent their spread to a large extent．To contain forest fires，fire departments usually use water and chemical fire retardants（抑制劑）that can be dropped from planes and helicopters．To control the spread of a wildfire．firefighters usually create a control line by removing all fuel from an area so that the fire cannot travel across it．
Controlled burns are often employed by government authorities to reduce fuel buildup，and clean up the fallen leaves，and thus，prevent the spread of forest fires to a vast area．Regular controlled burns can also help maintain biodiversity（生物多樣性），as the smoke and heat produced in the process can facilitate（促進(jìn)）the growth of seeds of certain plant species．Apart from these，responsible human behavior can help reduce the number of forest fires to a great extent．In fact，we can reduce the number of wildfires dramatically by not leaving behind any source of fire in the forest．
Forest fires can affect climate and weather to a great extent，besides causing severe damage to valuable trees．Wildfires can increase the level of greenhouse gases（water vapor，carbon dioxide，etc），and therefore increase pollution and global warming．However，they are also an important part of the ecosystem，and many plants depend on the heat and smoke generated by wildfires for their growth and reproduction．But large wildfires can cause extensive damage to the ecosystem，which again highlights the importance of effective control and prevention of forest fires•

61．What may be the best title for this passage？A
A．Control and Prevention of Forest Fires
B．How to Keep Ecological Balance
C．Effects of Forest Fires
D．Methods of Fire Spread Control
62．Firefighters get rid of all fuel in all area in order toD．
A．keep close monitoring of forest fires
B．prevent the forest fire from occurring
C．protect the animals there
D．stop the wildfire from spreading
63．The government arranges some controlled burns toC．
A．burn the rubbish and keep the forest clean
B．help keep ecological balance of nature
C．reduce fuel buildup and limit forest fires spread
D．provide reasonable conditions for some plants'growth
64．A controlled forest fire may play a positive role becauseB．
A．a(chǎn) new forest will appear soon
B．it promotes the development of some seeds
C．nature keeps its balance only by wildfires
D．it makes the trees grow faster than before
65．The last paragraph tells us thatB．
A．the greenhouse gases are caused mainly by wildfires
B．wildfires have both positive and negative effects
C．people should be aware of the necessity of wildfires
D．a(chǎn)ll the valuable trees disappear owing to wildfires．

分析 本文屬于說明文閱讀，作者通過這篇文章主要向我們描述了森林火災(zāi)預(yù)防有助于減少損失，減少火災(zāi)風(fēng)險和控制病情蔓延從而確保生態(tài)平衡．森林火災(zāi)的危害不言而喻，但在控制中的燃燒既有助于控制火災(zāi)損失，還有助于保持生物多樣性．

解答 61．A  主旨大意題．根據(jù)文章第一段"The preventive measures for forest fires include some preemptive（搶先）methods that can help reduce the risks of fires and control their severity and spread，and thus，maintain ecological balance and protect resources"可知文章從對林火的預(yù)防和發(fā)生后如何控制兩方面做了介紹；故選A．
62．D  細(xì)節(jié)理解題．根據(jù)文章第一段"…control the spread of a wildfire，firefighters usually create a control line by removing all fuel from an area so that the fire cannot travel across it．"可知消防人員清除掉所有的可燃物是為了阻止火勢的蔓延；故選D．
63．C  細(xì)節(jié)理解題．根據(jù)文章第二段"…and thus，prevent the spread of forest fires to a vast area"可知得知政府這樣做是為了阻止森林大火向其他地區(qū)蔓延；故選C．
64．B  細(xì)節(jié)理解題．根據(jù)文章第二段"controlled burns can also help maintain biodiversity"以及最后一段"and many plants depend on the heat and smoke generated by wildfires for their growth and reproduction"可知在某種程度上很多植物從大火中得到了一定的好處；故選B．
65．B  推理歸納題．根據(jù)文章最后一段：affect climate and weather，increase the level of greenhouse gases，cause extensive damage to the ecosystem等；但也有積極的一面：they are also an important part of the ecosystem．可知森林火災(zāi)有正負(fù)兩面影響；故選B．

點評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力，做細(xì)節(jié)理解題時一定要找到文章中的原句，和題干進(jìn)行比較，再做出正確的選擇．在做推理判斷題不要以個人的主觀想象代替文章的事實，要根據(jù)文章事實進(jìn)行合乎邏輯的推理判斷．

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科目：高中英語 來源： 題型：閱讀理解

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D．transplanting gut flora
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A．Paragraph 2   B．Paragraph 3   C．Paragraph 4   D．Paragraph 5
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科目：高中英語 來源： 題型：選擇題

1．If you just spend your time___ gains and losses，maybe you'll get nothing in the end．（　　）
A．checkingB．weighingC．balancingD．examining

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科目：高中英語 來源： 題型：選擇題

18．The fact that she knows when to study and when to play ______a lot about the secret of her success．（　�。�
A．guessesB．appearsC．talksD．says

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科目：高中英語 來源： 題型：填空題

11．Colorful fruits and vegetables are helpful to our health．Their（61）natural（nature） colors help protect our bodies from disease．Think about the colors of fruits and vegetables---the red of tomatoes，the orange of carrots，the green of apples and the purple of grapes．
You can enjoy （62）eating（eat） f ruits and vegetables of all colors---green，yellow，blue，purple，and white．Each color（63）is（be） important to our health．These colors work together to protect （64）our（we） bodies．Scientists have studied them and discovered （65）thegood of colorful fruits and vegetables．The list below shows some benefits of some colors in fruits and vegetables：
Red gives us a healthy heart．It can（66）possibly（possible） reduce heart disease．Red helps improve our memory．
Yellow is good （67）forour eyes．
White can reduce cholesterol（膽固醇）．
Green is helpful to eyes．It also gives us strong bones and （68）teeth（tooth）．
Blue helps us keep a good memory as we grow old．It also helps fight heart disease．
So，69 you are buying or eating fruits and vegetables，remember（70）to try（ try）different colors of them．

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