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1、Day 6ASurface area(sq mi)Vblume(cu mi)Percentageof totalSalt waterThe oceans139,500,000317,000,00097.2%Inland seas and salinelakes270,00025,0000. 008Fresh waterFreshwater lakes330,00030,0000.009All rivers(average level)3000. 0001Antarctic Icecap6,000,0006,300,0001.9Arctic Icecap and glaciers900,0006
2、80,0000.21Water in the atmosphere197,000,0003,1000.001Ground water within half amile from surface1,000,0000.31Deep-lying ground water1,000,0000.31Total (rounded)326,000,000100.00The Antarctic Icecap is the largest supply of fresh water, representing nearly 2% of the worlds total of fresh and salt wa
3、ter. As can be seen from the table above, the amount of water in our atmosphere is over 10 times as much as the water in all the rivers taken together. The fresh water actually available for human use in lakes and rivers and the accessible ground water amount to only about one-third of 1% of the wor
4、lds total water supply.1. Which two places share equal amount of fresh water?A. Freshwater lakes and all rivers (average level)B. Antarctic Icecap and water in the atmosphereC. Deep-lying ground water and Arctic Icecap and glaciersD. Ground water within half a mile from surface and Deep-lying ground
5、 water2. The fresh water that humans can use is.A. about 1,086,700 cu mi B. about 6,300,000 cu miC. about 680,000 cu mi D. about 2,000,000 cu mi3. Whats the best title of this passage?A. Fresh Water in the World B. Water Supply of the WorldC. Salt Water of the Earth D. Protection of the Water in the
6、 World 【答案解析】1 .D 2. A 3. B這是一篇說明文。本文說明r世界水資源的分布情況,以及淡水和海水的具體的百分比 情況,并詳細(xì)說明了各種水資源所占的比例等數(shù)據(jù)?!?題詳解】細(xì)節(jié)理解題。對比表格倒數(shù)2、3行中Ground water within half a mile from surface和 Deep-lying ground water.的Fresh water部分可知,這兩者淡水水量基本相同。故選D?!?題詳解】細(xì)節(jié)理解題。根據(jù)第一段中 The fresh water actually available for human use in lakes and rive
7、rs and the accessible ground water amount to only about one-third of 1% of the world,s total water supply.可知實際上,湖泊和河流中可供人類使用的淡水和可獲得的地F水僅占世界總 供水的三分之一。山此可知,全世界水含量是326.000,000,可以飲用的淡水大約有1,086,700 cu mio 故選 A。【3題詳解】主旨大意題。根據(jù)本文說明了世界水資源的分布情況,以及淡水和海水的具體的百分比 情況,并詳細(xì)說明了各種水資源所占的比例等數(shù)據(jù)。故B選項“世界的水供應(yīng)”最符合文章 標(biāo)題。故選B。BW
8、hen an editor called to ask if I could photograph a story about fireflies in Mexico. I didnt check my schedule before I said yes. I,d seen these insects light up the forests in Tlaxcala once before, and I jumped at the chance to go back.While studying, I began exploring Mexico, crossing the country
9、several times by bus. Now 1 work as a photojournalist in Mexico and along the border, documenting desperate situations that face everyday Mexicans. Though necessary and important, news stories dont reflect the Mexico that I fell for and that is home to so many people 1 love. A task focused on the co
10、untrys natural beauty was a welcome reprieve for me.I had three nights to film the magical scene in the forest. According to our guides, visitors are usually not allowed to photograph the fireflies because the presence of artificial light from electronics can affect their habits. As I started shooti
11、ng, I adjusted my exposures constantly to account for the fading light. In order to get the composition that I wanted, I placed my tripod (三 腳架)on a steep, rocky path and had to steady it during the long exposures. Normally this wouldnt be a big deal, but the fireflies were very interested in the ca
12、mera and, by extension, in me. I stood completely still while they were all over me-my arms, my hair, my face. From what I observed, peak (高峰時期的)firefly presence lasts for only about 20 minutes each night, so I had time for just a few tries.On the last night everything came together. The weather coo
13、perated. I had improved my method for focusing and composing photos in the dark with quick flashes from a powerful flashlightand Id grown accustomed to insects on my face.I was rewarded with the image you see here. Each dot of light is one of several bursts that a firefly makes as it travels within
14、a 30- second exposure. You can track the insects paths: Some make small circles, like those in the bottom center of the frame, while others move steadily in one direction or another.4. How did the author feel about the editors request?A. Nervous B. Delighted C. Confused D. Regretful5. Which of the f
15、ollowing can best replace the underlined word “reprieve“ in paragraph 2?A. Relief B. Return C. Trend D. Victory6. What did the author intend to do during the first two nights?A. Learn about the local travel rules.B. Research the habit of the fireflies.C. Communicate constantly with the guides.D. Fin
16、d the suitable spot and time to take photos.7. What is the authors purpose in writing the text?A. To tell findings about fireflies. B. To share the story behind a photo.C. To record a travelling experience. D. To show the authors working conditions.【答案解析】4. B 5. A 6. D 7. B本文是一篇記敘文。作者是一個專業(yè)攝影師,受一位編輯之
17、托,前去拍攝一篇關(guān)于墨西 哥螢火蟲的報道,介紹了他拍攝的一張關(guān)于螢火蟲照片背后的故事?!?題詳解】推理判斷題。根據(jù)笫一段中的、When an editor called to ask if 1 could photograph a story about fireflies in Mexico. I didnt check my schedule before I said yes.” I jumped at the chance to go back.(一位編輯打電話來問我是否可以拍攝一篇關(guān)于墨西哥螢火蟲的報道。在我答應(yīng)之 前我沒有查看我的日程安排。我迫不及待地抓住r這個機會。)可知,作者沒
18、有確認(rèn)自己的 行程就一口答應(yīng)編輯的請求,由此推知,他很樂意、高興、激動或者迫不及待地接受了這個 請求。故選B項?!?題詳解】詞義猜測題。根據(jù)第二段第二句Now I work as a photojoumalist in Mexico and along the border, documenting desperate situations that face everyday Mexicans.Though necessary and important, news stories dont reflect the Mexico that 1 fell for and that is hom
19、e to so many people 1 love. (現(xiàn)在,我在墨西哥邊境做攝影記者,記錄墨西哥人每天面臨的絕望處境。)可知,作 者作為攝影記者在耦西哥工作,記錄著墨西哥人每天都面臨的危險狀況,而這樣的新聞反映 不出作者喜歡的墨西哥?,F(xiàn)在有這樣一個關(guān)注墨西哥自然美的工作機全,對作者來說是一個 讓他開心的緩解機會。故選A項.【6題詳解】細(xì)節(jié)理解題。根據(jù)第三段第一句In order to get the composition that I wanted, I placed my tripod (二:腳架)on a steep, rocky path and had to steady it
20、during the long exposures. From what I observed, peak firefly presence lasts for only about 20 minutes each night, so 1 had time for just a能w tries.”(為了得到我想要的構(gòu)圖,我把我的三腳架放在一條陡峭、多巖石的小路匕在 長時間曝光時必須使它保持穩(wěn)定。據(jù)我觀察,峰值螢火蟲每晚只持續(xù)20分鐘,所以我只有 時間嘗試幾次。)根據(jù)第三段內(nèi)容可知,前兩個晚上作者主要做的是挑選合適的地點和時間 拍攝照片。故選D項?!?題詳解】推理判斷題。根據(jù)文章內(nèi)容,尤其是最后
21、段第*4i was rewarded with the image you see here(我得到了你們在這里看到的圖像)結(jié)合短文敘述了作者是個專業(yè)攝影師,受 一位編輯之托,前去拍攝一篇關(guān)于墨西哥螢火蟲的報道,介紹r他拍攝的一張關(guān)于螢火蟲照 片背的故事??芍?,本篇文章的目的是向讀者介紹作者拍攝的照片背后的故事,故選B項。CA young Dutch inventor is widening his effort to clean up floating (浮動的)plastic from the Pacific Ocean. He has developed a floating devic
22、e (設(shè)備)to trap plastic waste moving into rivers before it reaches the oceans.Boyan Slat was just 18 years old when he invented a system for catching waste in the ocean. He also founded an environmental group called The Ocean Cleanup. Its purpose is to develop the system. Last year. Slat showed the ne
23、xt step: a floating device called Interceptor. It removes plastic out of rivers. The device is powered by energy from the sun. The L000 rivers are responsible for about 80% of plastic going into the worlds oceans,“ said Slat. Three of the machines have already been used. Each machine costs about $ 7
24、75,660, but the cost might drop as production increases.Since they were used, the machines have been doing very well, collecting the plastic bottles and all the rubbish in the rivers. According to Slat, it is necessary to close “the tap”, which means preventing more plastic from reaching the ocean i
25、n the first place. He wanted to clean them all in the next five years. klThis is not going to be easy, but if we do get this done, we could truly make our oceans again,“ said Slat.The device is designed to be safe in rivers. Its nose is shaped to change directions to keep it away from larger floatin
26、g things. It works by guiding plastic waste into an opening in the front of the device. The waste is then carried inside the machine where it is dropped into containers. The device sends a text message to local operators that can come and empty it when it is full.8. What do we know about Interceptor
27、?A. It is being under test. B. It can help sort waste.C. It needs solar power to work. D. It is mainly used in the oceans.9. What does the tap* refer to in paragraph 3?A. The rivers.B. The machines.C. The oceans. D. The Interceptor.10. Whats the function of the devices nose?A. To empty the waste. B.
28、 To serve as containers.C. To ensure the devices safety. D. To send operators text messages.11. Where is the text most likely from?A. A diary. B. A guidebook.C. A novel D. A magazine.【答案解析】8. C 9. A 10. C 11. D【分析】這是一篇說明文。文章主要介紹荷蘭年輕發(fā)明家發(fā)明的一種可以清除河流中塑 料垃圾的裝置。【8題詳解】細(xì)節(jié)理解題。根據(jù)第二段的“The device is powered by
29、energy from the sun.(這個裝置由 太陽提供能量。)“可知,這臺設(shè)備是以太陽能為動力的。故選C?!?題詳解】詞句猜測題。根據(jù)第三段的“Since they were used, the machines have been doing very well, collecting the plastic bottles and all the rubbish in the rivers. According to Slat, it is necessary to close “the tap”, which means preventing more plastic from
30、reaching the ocean in the first place. (自從使用以來,這些機器直運轉(zhuǎn)良好,收集了塑料瓶和河里所有的垃圾。根據(jù)斯萊特的 說法,關(guān)閉水龍頭是必耍的,這就意為著首先要防止更多的塑料進入海洋。)“可知,斯 萊特認(rèn)為減少河里的垃圾,就能阻止垃圾進入海洋。由此可知,“the tap”指的是上游的河流。 故選Ao【10題詳解】細(xì)節(jié)理解題。根據(jù)最后一段的“The device is designed to be safe in rivers. Its nose is shaped to change directions to keep it away from lar
31、ger floating things.(這個裝置是為 / 在河流中安全 而設(shè)計的。它的鼻子形狀可以改變方向,使它遠離較大的漂浮物。)”可知,鼻子碰到較大 的漂浮物時會讓裝置轉(zhuǎn)變方向,即鼻子的作用是確保裝置的安全。故選C。II題詳解】推理判斷題。根據(jù)文章的主要內(nèi)容,尤其第一段“A young Dutch inventor is widening his effort to clean up floating (浮動的)plastic from the Pacific Ocean. He has developed a floating device (設(shè)備)to trap plastic wa
32、ste moving into rivers before it reaches the oceans.(一位年輕的荷 七發(fā)明家正在加大力度清理太平洋上漂浮的塑料。他發(fā)明了 種漂浮裝置,可以在塑料垃圾 到達海洋之前將其在河流中收集。)”可知,主要介紹荷蘭年輕發(fā)明家的一種可以清除河流 中塑料垃圾的裝置因此本文屬丁科技說明文,由此推知這篇文章很有可能出自一本雜志。 故選D。DMetal-organic frameworks(MOFs) are compounds that are set to solve some tough challenges: producing water in the
33、desert, removing greenhouse gases from the air and storing dangerous gases more safely.The Arizona desert is really dry. Anyone stuck in it without water would die from dehydration (脫水) within three days. Unless, that is, they had one of Omar Yaghis next-generation water harvesters. Although daytime
34、 humidity(濕度)is only about 1() per cent, this rises to 40 per cent at night, which means theres enough water in the atmosphere to support life if it can be transformed into liquid form.Thats exactly what Yaghis device does. Its a box about the size of a small microwave oven designed to suck the humi
35、dity from the air at night and turn it into drinking water the next day using only the heat of the sun as its power source. What makes it work is a special material called a metal-organic framework (MOF), which at normal temperatures attracts water molecules (分子) onto its surface of its internal por
36、es (細(xì)孔).Warm it up and the water is released, each harvest producing one-third of a cup of pure drinking water.With further improvements, a device, the size of a washing machine, could produce enough water for the basic needs of a household, II says Yaghi, a chemist at the University of California.
37、One-third of the worlds population lacks safe drinking water; for them such a device could be a lifesaver.These crystalline cluster (結(jié)晶群)of metals, such as aluminum or magnesium, linked by organic molecules can be made into materials with an extremely high absorption ability, attracting specific mol
38、ecules to their surface. In this way, MOFs cling to a variety of liquids and gases.MOFs work thanks to their unique structure-large quantities of nanometer-sized internal spaces. In fact one MOF has so many pores that they would cover an area as large as six football fields. MOFs are also extremely
39、stable light and have many different uses: their molecular structure can be varied to attract specific molecules, such as water, and their pores can be designed to best store them. Adding a small amount of heat or pressure causes the MOF to release what it is holding. More than 70,000 different MOFs
40、 have been produced to date for various applications.12. Why is the Arizona desert mentioned in the second paragraph?A. To introduce water harvesters.B. To stress the importance of water.C. To express the urgent need for water there.D. To show its serious condition.13. What plays a vital role in wat
41、er harvesters?A. solar energy. B. water molecules.C. a small microwave oven D. metal-organic frameworks.14. What does the underlined phrase cling to* in paragraph 5 probably mean?A. hold onto B. break downC. give off D. turn into15. What will probably be covered in the following paragraphs?A. The fu
42、ture of the MOF technology.B. Other uses of the MOF technology.C. The limitation of the MOF technology.D. The improvement of the MOF technology.【答案解析】12. A 13. D 14. A 15. B【分析】這是一篇說明文。短文介紹了金屬有機骨架(MOFs)的用途,結(jié)構(gòu)和性能?!?2題詳解】推理判斷題.由第二段“The Arizona desert is really dry. Anyone stuck in it without water wou
43、ld die from dehydration (脫水)within three days. Unless, that is, they had one of Omar Yaghis next-generation water harvesters.”可知,亞利桑那沙漠非常干燥。任何沒有水的人都 會在三天內(nèi)死于脫水。除非他們有奧馬爾-亞吉的下一代水收集器。所以奧馬爾亞吉的下一 代水收集器可以解決沙漠中缺水的問題。故判斷出第二段提到亞利桑那沙漠是為介紹水收 集器。故A選項正確【13題詳解】細(xì)節(jié)理解題。由第三段“What makes it work is a special material called a metal-organic framework (MOF).”可知,使它工作是一種稱為有機框架(MOF)的特殊的材料。所以金屬有 機框架在水收柒器中起著至關(guān)重要的作用。故D選項正確。【14題詳解】詞義猜測題。Ft第五段“These crystalline cluster (結(jié)晶群)of metals, such as aluminum or magnesiu
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