题目内容
15.Scientists this week announced that lightning can travel much farther and last much longer than previously thought.The conclusion is based on observations of a storm in Oklahoma(hat produced a lightning bolt(霹雳)nearly 200 miles long.nearly half the width of the state.The longest-lasting flash was observed in southern France.where a single flash in 2012 lasted for 7.74 seconds.Most lightning bolts last less than a second and travel only a few miles.
"We should be more aware of lightning if wc can have lightning (hat can travel 200miles."said Randy Cerveny,the spokesman on weather and climate extremes for the World Meteorological Organization,which added.for the first time,lightning to its list of extreme weather events.This list includes records for heat,cold,wind speed,rainfall and other events.
Scientists said that the Oklahoma lightning bolt shot from Tulsa,Okla.,westward,nearly to the Texas border.It touched the ground in several places.
The lightning can start tens or hundreds of miles away and then come back to where we are.That's why we have to be careful of where the lightning is coming to ground,even though the storm is past.
Of course not all storms have extreme lightning like that observed in Oklahoman and French storms.The Oklahoma bolt came in the midst of a particularly bad patch of weather early on June 20,2007.
"Most lightning will strike within the 30-30rule,"said Dr.Cerveny."The 30-30 rule is one that we still want to stress and make sure people are aware of…but it does confirm that lightning can hit far from where the storm actually is."
The"30-30"rule stipulates(规定)that if thunder follows lightning within 30 seconds,people should go inside for 30minutes.If it lakes longer,it's safe to stay outside.
Studying lightning is important because it can be fatal when it strikes.This year,35 deaths have been blamed on lightning striker,according to data from the National Oceanic and Atmospheric Administration.That's the highest death toll related to lightning strikes in any single year since 2007,reports The Weather Channel-
Though thunder is just the sound of lightening,the rumble(隆隆声)arrives after the light flash during a storm?because light travels much faster than sound.The booming sound is a shock wave caused by the rapid expansion of air suddenly heated by the lightning holt.
61.According to the authorities,lightning mayB.
A.cause as great harm as a severe earthquake
B.parallel hurricanes in their harm to humans
C.impact on people in a larger area than rains
D.be far more difficult to forecast than storms
62.The"30-30rule"is established lo showD.
A.when we can carry out observations on lightning bolts
B.what the relationship is between lightning and a storm
C.where lightning may possibly reach and cause damage
D.how we might keep ourselves safe from a lightning bolt
63.We can conclude from the passage thatA.
A.the longer distance a bolt covers,the more dangerous it may be
B.lightning bolts tend to take place in extremely hot summer days
C.we mustn't stop caring about the bolts until I hey come to an end
D.where there is no storm.there is no danger from lightning
64.The passage tells us aboutB.
A.an application in lightning
B.an update on lightning
C.an experiment on lightning
D.an analysis of lightning.
分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了科学家们对于闪电对人类伤害的研究,并提出了一些在闪电下维护自身安全的方法.
解答 61.B.细节理解题.根据文章The lightning can start tens or hundreds of miles away and then come back to where we are.That's why we have to be careful of where the lightning is coming to ground,even though the storm is past可知科学家发现闪电和风暴对人类有相似的伤害;故选B.
62.D.细节理解题.根据第七段The 30-30 rule is one that we still want to stress and make sure people are aware of…but it does confirm that lightning can hit far from where the storm actually is可知30-30rule的建立是为了告诉我们如何从闪电下保障自己的安全;故选D.
63.A.推理判断题.根据文章The"30-30"rule stipulates(规定)that if thunder follows lightning within 30 seconds,people should go inside for 30minutes.If it lakes longer,it's safe to stay outside可知闪电覆盖的距离越远越危险;故选A.
64.B.推理判断题.根据第一段Scientists this week announced that lightning can travel much farther and last much longer than previously thought可知这段话告诉我们关于闪电认知的更新;故选B.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
A. | laugh | B. | laughing | C. | laughter | D. | laughters |
I(44)CBlack Friday sales.It's often lots of people(45)Bthe shops merely to pick up bargains.Their intentions are completely unrelated to the(46)Atime of year.
It was one Black Friday morning several years ago(47)Bmy wife and I went to the local department store to purchase a child's(48)Dfor our son.W e stood with a very large crowd,(49)Cfor the manage to blow the whistle.On hearing the(50)A,people were all scrambling(争先恐后)to get the bargains.I(51)Bmy opportunity and lifted one of the boxes containing bikes(52)DI felt some mild resistance.I looked(53)Bto see one of the largest gentlemen I'd ever seen in my life."Frightening"was not the world to(54)Chis presence.I unwillingly(55)Dthe box but,to my surprise,he gently pushed it back in(56)Cdirection.Our eyes made contact and he gave me a (57)Asmile,saying,"Merry Christmas."My wife and I went to the(58)Band paid for the bike.All the way home I was thinking that this moment was much the best Christmas gift I'd ever received.A simple(59)Aof kindness from a stranger(60)Dall stereotypes(成见)and prejudices I may have had.I'll never forget it.
41.A.friend | B.colleague | C.stranger | D.brother |
42.A.fun | B.argument | C.conversation | D.contact |
43.A.way | B.habit | C.attitude | D.pattern |
44.A.enjoy | B.forget | C.hate | D.expect |
45.A.breaking into | B.crowding | C.getting into | D.wandering |
46.A.joyful | B.discouraging | C.annoying | D.busy |
47.A.since | B.when | C.before | D.until |
48.A.toy | B.book | C.box | D.bike |
49.A.preparing | B.looking | C.waiting | D.crying |
50.A.whistle | B.bell | C.screams | D.cheers |
51.A.missed | B.saw | C.offered | D.quitted |
52.A.Gradually | B.Immediately | C.Occasionally | D.Suddenly |
53.A.down | B.up | C.through | D.forward |
54.A.introduce | B.state | C.describe | D.say |
55.A.take away | B.take down | C.put away | D.put down |
56.A.his | B.its | C.my | D.another |
57.A.friendly | B.regretful | C.frightening | D.special |
58.A.exit | B.checkout | C.store | D.stand |
59.A.act | B.behavior | C.word | D.movement |
60.A.deepened | B.replaced | C.cleaned | D.removed |
A. | conveyed | B. | swapped | C. | exchanged | D. | switched |