1、Unit 6 Nature in the words 检测题本试卷满分120分,考试时间100分钟。第一部分 阅读(共两节,满分50分）第一节(共15小题; 每小题2.5分, 满分37.5分）阅读下列短文,从每题所给的A,B,C,D四个选项中选出最佳选项。A Seeing a volcano erupt is a wonderful experience, and you can really feel the heat by climbing to the summit of Pacaya for a close-up view. There are guided tours every d
2、ay up this highly active volcano from Antigua, giving travellers a chance to see Mother Nature at her most powerful. Pacaya is an easy drive from Antigua, a beautiful city with many colourful houses along its old streets that are turned into artworks during its Holy Week festival. But climbing Pacay
3、a is no easy job: it is 2,552 metres high and reaching the summit takes two to three hours of seemingly one-step-forward and two-step-back movements. As you climb, you hear the sounds of eruptions high above. Smoke and hot remains of recent eruptions begin to appear on the path as you near the activ
4、e summit: the McKenney Cone(火山锥). Just as though you are going to walk over to the edge of the cone, the road turns to the left and up to the safety of the old, inactive summit. Many tours are timed so that you arrive at the cone of the volcano in plenty of time for the sunset and the full scene of
5、the erupting red lava in the darkening sky. On a good day the view from the summit is really exciting. The active mouth boils, sending red lava over its sides, and once in a while shoots hot streams up to 100 metres into the air. There is a strong bad smell in the air even if you are upwind of the c
6、one. As evening turns deeper into the night, the burning lava quietly falls down the sides of the volcano. For you, too, it is time to get down, but I am sure the powerful forces of nature will attract you and you would like to come to see it again.1.What does the underlined word summit in the first
7、 paragraph mean?A.Remained, cooled rocks along the path.B.Loud sounds and terrible smell in the air.C.The most exciting happening in a place.D.The top point of a mountain or hill.2.Many tours are timed for people to _.A.get down the mountain in time when night fallsB.avoid the smell from the upwind
8、direction of the coneC.enjoy the fantastic eruption against the darkening skyD.appreciate the beauty of the 2 ,552-metre-high mountain3.What is the main purpose of this passage?A.To have more tourists come to Pacaya.B.To describe the beauty of Pacaya.C.To introduce guided tours to Pacaya.D.To explai
9、n the power of nature at Pacaya.B Give yourself a test. Which way is the wind blowing? How many kinds of wildflowers can be seen from your front door? If your awareness is as sharp as it could be, youll have no trouble answering these questions. Most of us observed much more as children than we do a
10、s adults. A childs day is filled with fascination, newness and wonder. Curiosity gave us all a natural awareness. But distinctions that were sharp to us as children become unclear; we are numb (麻木的) to new stimulation (刺激) and new ideas. Relearning the art of seeing the world around us is quite simp
11、le, although it takes practice and requires breaking some bad habits. The first step in awakening senses is to stop predicting what we are going to see and feel before it occurs. This blocks awareness. One chilly night when I was hiking in the Rocky Mountains with some students, I mentioned that we
12、were going to cross a mountain stream. The students began to complain about how cold it would be. We reached the stream, and they unwillingly walked ahead. They were almost knee-deep when they realized it was a hot spring. Later they all admitted theyd felt cold water at first. Another block to awar
13、eness is the obsession (痴迷) many of us have with naming things. I saw bird watchers who spotted a bird, immediately looked it up in field guides, and said, a ruby-crowned kinglet and checked it off. They no longer paid attention to the bird and never learned what it was doing. The pressures of time
14、and destination are further blocks to awareness. I encountered many hikers who were headed for a distant campground with just enough time to get there before dark. It seldom occurred to them to wander a bit, or to take a moment to see whats around them. I asked them what theyd seen. Oh, a few birds,
15、 they said. They seemed bent on their destinations. Nature seems to unfold to people who watch and wait. Next time you take a walk, no matter where it is, take in all the prospects, sounds and sensations. Wander in this frame of mind and you will open a new dimension to your life.1.What idea does th
16、e author convey in Paragraph 3?A. To avoid jumping to conclusions.B. To stop complaining all the time.C. To follow the teachers advice.D. To admit mistakes honestly.2.The bird watchers behavior shows that they _.A. are very patient in their observationB. are really fascinated by natureC. care only a
17、bout the names of birdsD. question the accuracy of the field guides3.Why do the hikers take no notice of the surroundings during the journey?A. The natural beauty isnt charming to them.B. They focus on arriving at the campground in time.C. The forest in the dark is dangerous for them.D. They are kee
18、n to see rare birds at the destination.4.In the passage, the author intends to tell us we should _.A. use our senses to feel the wonders of the worldB. get rid of some bad habits in our daily lifeC. open our mind to new things and ideasD. try our best to protect natureC It isa question that has long
19、 puzzled scientistswhy are tigers orange? One might think it makes them more obviousparticularly against a leafy green forest background. William Blake summed it up in his famous poem known by generations of schoolchildren: Tyger, tyger, burning bright/ In the forest of the night. But now the answer
20、 is at hand. While obvious to us, computer simulations(模拟) of what the big cats look like to the main animals they hunt for, deer, show a different picture. Humans with normal color vision, can see red, blue and green colors. But deer can only pick up blue and green light. They are effectively color
21、-blind to the color red, like some humans. It means the tigers orange coloration looks green to them, allowing them to mix perfectly into the background, new research claims. Dr. John Fennell at the University of Bristol and his colleagues said that they used computers to estimate how noticeable a g
22、iven animal was. They did this by using images of the environment in which the animal lives, and then creating images to see whether the camouflage helps the animal to mix in. Dr. Fennell writes that by simulating what the world looks like to animals who are two-color visionsomeone who cannot discov
23、er the difference between red and greenwe also identify the most suitable colors for hiding and visibility. Dr. Fennell writes in the Journal of the Royal Society Interface: Considering the coat of a tiger, it has fur that appears, orange to a three-color vision observer rather than some shade of gr
24、een, though the latter should be a more appropriate color for an attack hunter in forests. However, when viewed by a two-color vision observer, the tigers color is very effective. The question then arises as to why tigers dont grow green coats. Dr. Fennell and his colleagues write that mammals are n
25、ot able to produce green fur. To do so would require a significant change of mammalian biochemistry. There is only one mammal known to have green fur but this is achieved through what might be considered as, well, cheating, not exactly real.1. Why does the author mention the poem in Paragraph 1?A. T
26、o arouse readers interest in poems.B. To show the authors respect to the poet.C. To answer the question of the color of the tiger.D. To stress the noticeable color of the tiger to us.2. What color is inexistent in the eyes of deer?A. Black.B. Red.C. Blue.D. Green.3. What does the underlined word cam
27、ouflage mean according to the text?A. The cover of something.B. The way of hiding something.C. The images of something.D. The way of hunting for something.4. What can be inferred from the last paragraph?A. The color of tigers sometimes cheats people.B. Getting green may prevent tigers from being ext
28、inct.C. There are no mammals with real green fur in the world.D. The tigers fur will probably evolve into green in the future.D Blue whales, the earths largest animals, call to others of their kind, though exactly what these cries communicate remains a mystery. But these sounds have begun evolving (
29、逐渐演变). Since at least the 1960s, the pitch (音高) of Antarctic blue whales has downshifted. Scientists have theories as to why: all involving humans. The deepening of their sounds is not unique. Many blue whales around the world have also dropped their pitch. In the study last year that analyzed more
30、than 1 million individual recordings of whale calls, pitch shifts were found across the species, and among populations (种群) that dont necessarily interact with one another. This is to say, whatever has caused the change doesnt seem to have a specific geographic origin. The underwater noises caused b
31、y ocean traffic and at-sea industries might seem likely criminals. However, scientists have identified lowered pitch even across populations of whales that live in seas without major shipping routes. One possible explanation for the change is the achievements of global conservation efforts. As their
32、 populations grow, the whales may have decreased their volume because they are more likely to be communicating over short distances. Last years study of whale calls also suggests a threatening reason for the drop in pitch, however. Perhaps whales dont need to be so loud because sound waves travel fa
33、rther in oceans made acidic by the absorption of carbon dioxide. Carbon dioxide in the atmosphere, meanwhile, may also indirectly influence whale voices in other ways. A recent study shows that, during the summer, the whales must use their top volume to make themselves heard in the cracking ice a na
34、tural sound increased by unnatural processes, as rising temperatures worsen ice-melt. So the impacts of a warming planet may modulate animal sounds even in remote places.1.To what extent does whales pitch drop?A.Across the species.B.In the Antarctic Ocean.C.Among some populations.D.Within one millio
35、n individual recordings.2.What causes the evolving of whales pitch according to the text?A.Less communication and more threat.B.Protection efforts and acidic sea water.C.Sharp decrease of whales populations.D.Underwater noises by ships and industries.3.What does the underlined word modulate mean in
36、the last paragraph?A.Produce.B.Damage.C.Balance.D.Change.4.What can we infer from the text?A.Man is the soul of nature.B.Man and nature are in one.C.Nature pardons no mistakes.D.Nature has the final say over man.第二节 (共5小题;每小题2.5分,满分12.5分）阅读下面短文, 从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。 If your family is
37、thinking of getting a pet, consider adopting from an animal shelter, where all animals are in need of loving homes. _ Here are some tips for you to find great animals. Make some decisions. Think about what you want in a pet and remember that all pets have different personalities. Cats tend to be mor
38、e independent, but kittens need lots of attention._ However, they are usually great companions and love to spend time with their family. Visit the shelter._Remember that you may need to visit more than one shelter, or you may need to make more than one visit. Try to bring along everyone who will be
39、living with the new pet. Ask the shelter staff lots of questions. And never adopt an animal because you feel sorry for itbe patient so you can find a pet that is truly a good match for your family. _ Buy all necessary supplies and food well before the animal comes home. Make sure that the entire hou
40、sehold is in agreement about rules and responsibilitieswill the dog be allowed on the couch? Who will clean the litter box? Put these in writing before the pet arrives. Bring your new friend home! Youll probably be excited when your new pet arrives, but be sure to give it space and time to get adjus
41、ted to a new home and a new family._ Interact with your pet a lot and get it used to a routine, and soon youll be one big happy family!A.Get everything ready.B.Put away the garbage cans.C.Dogs need to be walked at least twice a day.D.Both cats and dogs are humans good partners.E.The pet may act diff
42、erently once it leaves the shelter.F.Set aside at least a few hours to visit shelters in your area.G.Some may come with emotional or behavioral issues, but most are happy, healthy, and ready for a loving home.第二部分 语言运用 (共两节,满分30分）第一节 (共15小题; 每小题1分, 满分15分） Molai grew up in a tiny village in India. Th
43、e village lay near some wetlands which became his second 1 . He learned the value and beauty of2 there from a very young age. When he was 16, Molai began to notice something3 happening around his home. A flood had hit the area earlier that year and the4 it caused had driven away a number of birds.5
44、, the number of snakes had declined as well. He6 that it was because there werent enough trees to protect them from the7 . The solution, of course, was to plant trees so the animals could seek8 during the daytime. He turned to the9 department for help but was told that nothing would grow there. Howe
45、ver, Molai went looking on his own and 10 a nearby island where he began to plant trees. 11 young plants in the dry season was 12 for a lone boy. Molai built at the 13 of each sapling (幼树) a bamboo platform, where he placed earthen pots with small holes to 14 rainwater. The water would then drip(滴落)
46、 on the plants below. Molai 15 to plant trees for the next 37 years. His efforts have resulted in 1,360 acres of naturally-grown land that has become home to many plants and animals.1.A.dreamB.jobC.homeD.choice2.A.natureB.youthC.cultureD.knowledge3.A.preciousB.interestingC.disturbingD.awkward4.A.was
47、teB.tensionC.painD.damage5.A.BesidesB.HoweverC.ThereforeD.Otherwise6.A.agreedB.realizedC.rememberedD.predicted7.A.noiseB.heatC.diseaseD.dust8.A.directionsB.partnersC.helpD.shelter9.A.laborB.policeC.forestD.finance10.A.rebuiltB.discoveredC.leftD.managed11.A.DecoratingB.ObservingC.WateringD.Guarding12.A.toughB.illegalC.fantasticD.beneficial13.A.backB.topC.footD.side14.A.cool downB.
