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1、基础自测 (十五 )必修 3 Module 3 The Violence of Nature 姓名 :时间 :30 分钟I .阅读理解主题 词数体裁绿色天空和龙卷风347说明文In areas like the Central United States that get lots of tornadoes, there s a common piece of celestial 天上的( )fortune-telling that green skies mean a tornado is on its way. Research has shown that it i stnquite a
2、s simple as that, but scientists have found that if you see a green sky, you should probably go inside. As far as most scientists can tell, the green skies around powerful thunderstorms are usually a combination of red sunsets and water droplets.Daytime skies are blue because blue shorter wavelength
3、s of visible light tend to bounce off皈射)air molecules better than red longer wavelength light. So the blue light gets bounced all over the sky and looks like its coming from everywhere. Meanwhile, around sunset, sunlight travels through so much atmosphere that just about all the blue is bounced away
4、 from the horizon, leaving all those reds and oranges behind. The sunset might look exclusively red and orange, but there s still some green and even blue light hidden in there, just far less than the other colours. But for us to notice the remaining green light, it needs to hit something that refle
5、cts green light much better than red. Th at where water comes in.Big, tall, threatening storm clouds are made of water droplets, and even though water is best at reflecting blue light, it can still reflect green pretty well, much better than red and orange. So under just the right conditions, the wa
6、ter in and around a cloud can bounce the green light hidden in the sunset right into our eyes, making the sky look green.Still, not all of the conditions that can turn skies green are unique to the clouds that produce tornadoes. Sometimes they just lead to lots of rain, and maybe some hail. So if yo
7、u see huge storm clouds rolling in and a green tinl( 调)in the sky, it doesn,t necessarily mean theres about to be a tornado, but it does mean you should probably head indoors.( )1.What can be the best title for the text?A.Why does the Central United States get tornadoes?B.Do green skies mean a comin
8、g tornado?C.A common piece of celestial fortune-tellingD.Green skies are unique to clouds( )2.Why are the skies blue in the daytime?A.Because only blue light can be bounced in the daytime.B.Because there is more blue light than light of other colours.C.Because blue light is bounced all over the sky.
9、D.Because red light is weaker than blue light.( )3.What does the underlined word “it ” i2 PfargrOphA.The sunset.B.Red light.C.Blue light.D.Water.( )4.What can we learn about from the text?A.Storm clouds are made of water droplets and green light.B.Water can reflect red light as well as blue light.C.
10、There are only red and orange lights in the sunset.D.If you see a green sky, there will be a tornado.n .阅读七选五主题词数体裁暴风雨前的平静234说明文“ The calm before the storm” is a very familiar expression. It is usused to describe a peaceful period just before a very stressful situation or a tense argument. 1. They n
11、oted that before certain storms the seas would seem to become calm and the winds would drop.But why is it often so calm before a storm? 2. According to US website HowStuffWorks, a calm period occurs because many storms, tornadoes and hurricanes draw in all the warm and damp air from the surrounding
12、area. Asthis air rises into the storm clouds, it cools and acts as“fuel for thpetrol in a car ” .Once the storm has taken all the energy it can take from the air, it is pushed out from the top of the storm clouds and falls back down to ground level. 3.So once it covers an area, it causes a calm peri
13、od before the storm.4. First count how many seconds there are between a flash of lightning and a clap of thunder (roughly three seconds equal one kilometre). A good judgement is that if your count is below 30 seconds, you should seek shelter straight away.However, due to the complexity of storm syst
14、em, calm does 什 always go first. So, your best bet is to keep yourself updated with weather reports for any predictions regarding a coming storm in your area. 5.A.Science has given us the answer.B.There is no definite answer to the question.C.Weather reports sometimes cannot be trusted.D.British sai
15、lors coined the phrase in the late 1600s.E.As the air declines, it becomes warm and dry, which is stable.F.The Weather Network has a tip for working out how far away a storm is.G.That's the most reliable way to predict the next display of natures temper. m .完形填空主题词数体裁救灾344记叙文People shall always
16、unite as one big family in the face of disasters. When Hurricane Harvey hit Texas,Readers Digest wrote about impressive rescues. The spirit of serving can be incredibly 1 . Here is a story from Annalysa Longworth, a survivor of Hurricane Maria, in her own 2 .“The total 36 hours of Hurricane Maria in
17、 Puerto Rico was 3 the scariest event weve ever gone through. Our house sits on the north-west coast of Rincon. In the 4 , over 100 mph winds changed direction, causing a great amount of water to flood our 5 . The only place left dry and safe was our kitchen floor, where we were 6 to ride out the re
18、st of the storm. It has been 50 days since the 7 , and we are still without power and water. During our regular afternoon showers, we are glad to 8 rainwater but are quickly reminded of the people living without roofs, and how 9 it must be for them. Our emotions are consistently in a state of 10 .Re
19、cently, our good friends told us about a video interview they were doing with Watts of Love, a solar light company. The company generously gave us a headlamp for our personal 11 and a box with 50 headlamps to distribute throughout our town. Rincon was completely blacked out so making a simple walk t
20、hrough a parking lot to our car is 12 . We used to rush to get things done before 13 , but now we continue daily chores in the dark. What 14our lives most was being able to share these gifts with others. We 15 the lamps house by house to the people in the mountains who needed them most, as even batt
21、eries and candles are 16 there. Even though17have comegradually, people have been out of work and ca H afford to18theirelectric bills. I 'll always be 19 to Watts of Love for allowing us to pay it forward and be witnesses to the smiles that 20 can bring. ”()1.A.moving B.terrifyingC.universal D.n
22、ecessary()2.A.methods B.wordsC.opinions D.editions()3.A.undoubtedly B.uncertainlyC.unsteadily D.unluckily( )4.A.system B.historyC.recovery D.darkness()5.A.school B.gardenC.house D.studio()6.A.requested B.taughtC.forced D.expected()7.A.performance B.progressC.rescue D.storm()8.A.research B.observeC.a
23、pply D.collect( )9.A.awful B.punctualC.amazing D.puzzling( )10.A.relief B.sympathyC.pleasure D.calmness()11.A.interest B.purposeC.attempt D.problem()12.A.convenient B.ridiculousC.dangerous D.awkward()13.A.sunsetB.scheduleC.deadline D.daybreak( )14.A.ruinedB.changedC.proved D.witnessed( )15.A.took of
24、fB.brought outC.got through D.gave away( )16.A.rare B.expensiveC.adequate D.equal( )17.A.reportsB.survivorsC.supplies D.complaints( )18.A.imagineB.receiveC.choose D.undertake( )19.A.devotedB.familiarC.grateful D.accustomed( )20.A.natureB.lightC.future D.harvest基础自测(十五)1 .【文章大意】本文是一篇说明文,主要分析了龙卷风来临前天空
25、多是绿色的原因。1.B 主旨大意题。文章第一段第一句提出现象,然后下文进行分析,由此可知 ,本文主要阐述了龙卷风到来前天空是绿色的原因。故选 B 项。2 .C 细节理解题。根据第二段前两句可知 ,白天天空是蓝色的,这是蓝光被反射到天空中所致。故选 C 项。3 .A 代词指代题。承接第二段第四句并结合语境可推知 ,此处 it 指代 the sunset故选A项。4 .B 细节理解题。根据第三段a even though water is best at reflecting bluelight, it can still reflect green pretty well, much bette
26、r than red and orange.可知, 水既可以反射蓝光也可以反射红光。故选 B 项。n .【文章大意】本文是一篇说明文,文章科学地分析了暴风雨前天气平静 的原因。1 .D 根据下文“ They noted that before certain storms the seas would seem tobecome calm and the winds would drop. 并结合上文 ”, “ The calm before the storm ' is a very familiar expressio市推知,此空解释了这个短语的渊源,故选 D。2 .A 根据上文
27、“ But why is it often so calm before a storm阴与下文形成呼应可推知,科学对此做出了解释,故选 A 。3 .E 根据下文 “So once it covers an area, it causes a calm period before the storm.可知,选项E中的stable与下句中a calm period呼应,故选E。4 .F 根据下文 “ First count how many seconds there are between a flash of lightning and a clap of thunder (roughly
28、three seconds qeual one kilometre). 可 ” 推知 ,此空与计算数据有关,与选项F 内容呼应 ,故选F。5 .G 根据上文 “So, your best bet is to keep yourself updated with weather reports for any predictions regarding a coming storm in your area可推知,你所 在区域的天气预报是最可靠的预测下一次暴风雨的方式,故选G。田.【文章大意】本文是一篇记叙文,讲述了飓风过后,一家名叫Watts of Love 的公司为受灾群众送去光明的故事。1
29、.A 根据下文可知,此处表示让人特别感动。moving 感动的 ;terrifying 害怕的;universal普遍的;necessary必要的。2.B 下面是飓风玛丽亚的幸存者安娜丽莎用自己的话讲述的一个故事。method 方式;word 话语;opinion 意见;edition 版本。3 .A 飓风玛丽亚持续了 36个小时 ,这无疑是 “我们 ”经历过的最可怕的事情。undoubtedly 毋庸置疑地;uncertainly 不确定地 ;unsteadily 不稳定地 ;unluckily不幸地。4 .D 飓风来临时,应当是天昏地暗的。system系统;history历史;recovery恢 复;darkness 黑暗。5 .C 黑暗中 ,时速超过 100英里的大风改变了方向 ,导致洪水淹没了 “我们 ” 的房子。school学校;garden花园;house房子;studio工作室。6 .C 唯一干燥和安全的地方是厨房, “我们 ”被迫在那里度过了剩下的被暴风雨袭击的日子。7 .D 暴风雨已经过去50天了,我们”仍然没有水和电。peforma
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