江苏省南师附中2020-2021学年高二上学期期末考试模拟英语试题 WORD版含答案.doc
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1、南师附中2020-2021学年度高二上学期英语期末模拟卷第一节 (共15小题;每小题2.5分,满分37.5分)A Here are four organizations that rescue and train shelter dogs to be service animals. Merlins KidsMerlins Kids is an organization that rescues and trains shelter dogs to become service animals for children and adults with special needs for phy
2、sical or emotional support. The dogs are also trained to find disease by screening people for cancer, diabetes and so on. In the publics eyes, these working dogs have proved that shelter animals are amazing.Pets for Vets This organization recognizes that many veterans(退伍军人) return home with scars, w
3、hich make it difficult for them to live a normal life. Pets for Vets was founded to rescue and train shelter animals to provide therapy dogs for veterans. The organization says that when vet is matched with the right dog, both of their lives change for the better.Paws with a CauseThis organization h
4、as been around since 1979 and it improves the independence and quality of life for people with disabilities(残疾). Paws with a Cause specializes in helping people with disabilities complete daily tasks and the pups can open doors and pull a wheelchair.Can do CaninesA dog from a local shelter helped st
5、art Can do Canines in 1989. She was a Lhasa Apso mix named Annie and she assisted her owner for eight years. Annie was the first of over 500 rescued dogs specially trained as service dogs to assist people with hearing, diabetes and autism. But if a dog in the organization is not suited due to behavi
6、or or illness, the pup is never trained again and placed into a forever home with a family1. What do we know about shelter dogs from Merlins Kids? A. They are thought highly of. B. They are intended for children. C. They can cure people of cancer D. They help people lead a normal life.2. Which organ
7、ization works on the improvement of retired soldierslives? A. Merlins Kids. B. Pets for Vets. C. Can do Canines. D. Paws with a Cause.3. How does Can do Canines deal with a sick dog? A. By sending it to hospital. B. By building a shelter for it. C. By giving it special training. D. By settling it in
8、to a fixed home. BToday we were looking after our two nieces. They started screaming in i the room where they were playing while my husband and I cooked lunch. We quickly ran to see what happened and there was small scorpion(蝎子)that somehow got into the house.My husband picked up the scorpion before
9、 it had a chance to get away. As he was catching the scorpion, the elder niece Alice said that it was good that he was there becausegirls cant deal with that thing. My husband asked her who told her that. Alice just shrugged(耸肩)and said,“Everyone knows girls are afraid of bugs(虫子). ”So my husband ca
10、lled her over and told her, You never have to be afraid of anything because youre a girl. Youre just as good as boys. When you saw this scorpion, you called me and your aunt here. You recognized there was something that could hurt you. So you got help. Im proud of you for letting adults know about s
11、omething that was a danger to you. Youre very smart.”He held the scorpions tail, adding, As you grow up, people are always going to try to tell you what you can and cant do, but you can do anything if you put your effort into it. Therere women that work with bugs for their jobs and study them.” She
12、got so excited at the thought of woman being able to do things a man can do.At this point her little sister Lisa came towards them. So my husband sat there and explained the different parts of the scorpion, completely firing their imagination. Alice asked if she could hold it. Then my husband put it
13、 on her hands. She was so proud of herself that she talked about it until she went to sleep.4. Why did the authors nieces scream? A. They were bitten by a scorpion. B. They spotted a scorpion in the room. C. The authors husband caught a scorpion. D. The authors husband was cooking a scorpion.5. What
14、 can we learn about Alice from Paragraph 3? A. She admired her uncle very much. B. She prided herself on calling adults in time. C. She thought it normal for girls to fear bugs. D. She was afraid of being compared with boys.6. Why did the authors husband say those words to Alice? A. To educate her t
15、o attend bugs B. To show her what she can and cant do. C. To tell her to devote herself to everything. D. To encourage her to be brave and confident.7. Which of the following best describes the authors husbands lesson to Alice? A. Meaningless. B. Successful. C. Humorous. D. Boring. CThe rainforests
16、of eastern Australia are home to stinging(有刺毛的) tree known as Dendrocnide. Many people call it the gympie-gympie tree-a name given to the tree by local Australian. No matter what you call the tree, the important thing is to stay far away from it. Though it looks like the leaves and stems are covered
17、 with a soft fuzz(绒毛), its actually covered with sharp needle-like hairs that carry poison. If you brush up against a gympie-gympie tree, you wont forget it anytimesoon. The pain of the stinging tree is severe.Its like having nail(钉子) shoved into your flesh,said Dr. Edward Gilding, one of the scient
18、ists behind the study. And the pain can last for hours, days, or weeks. In some cases, its been reported to last for months. Scientists have long looked for the source of this powerful sting. Now researchers at the University of Queensland have discovered at least part of what makes this stinging pl
19、ant so pain ful. The scientists believed they were looking for neurotoxin(神经毒素) After carefully studying different kinds of gympie-gympie trees, the scientists were able to separate out different chemicals that the trees produce. This allowed them to identify(识别) group of chemicals that they believe
20、d were responsible for the pain. The researchers created artificial versions of these chemicals, which they call gympietides. Sure enough, when the scientists shot mice with gympietides, the mice licked at the places where theyd been shot-indicating that they hurt in those places. When the scientist
21、s studied the way gympietides were built, they found that they formed knot-like(结状的)shpe. The shape makes the chemical very stable. The knot-like shape of the gympietides was similar to the shape of toxins produced by poisonous spiders and cone snails. The scientists were surprised to see three very
22、 different kinds of life all using similar toxins. While its clear that spiders and cone snails catch food with the toxins they carry, its still a mistery how stinging helps the gympie-gympie tree. The scientists also found something else about the toxin. Nerve cells have a sort of gate that opens t
23、o tell the body about pain and then closes again. But the gympietides prevent the gate from closing, so the pain message keeps getting sent. The scientists hope that by studying how the toxin affects these gates, they may be able to come up with new ways to help control pain.8. What do we learn abou
24、t the gympie-gympie tree? A. It can be used to make poison. B. It looks harmless from the outside. C. It attracts people with its needle-like hairs. D. Its hard to recognize even for the locals.9. What can happen after being stung by a gympie-gympie tree? A. Pain doesnt go away quickly. B. A severe
25、wound can be caused. C. Something can stick into the flesh. D. Pain usually isnt immediately sensed10. What did the results of the researchers experiment on mice show? A. Finding the source of the trees sting is challenging. B. The trees sting is especially dangerous for humans. C. The researchers h
26、ave found what causes the trees sting. D. Different kinds of stinging trees have the same neurotoxin.11. What does the text mainly talk about? A. Stinging trees suggest new way to relieve pain. B. Stinging trees hurt people out of self-protection. C. Scientists prevent the hurt caused by stinging tr
27、ees. D. Scientists discover Australian stinging trees secret.DA new copper-based-(基于铜的) material might help chemists recycle an unwanted greenhouse gas into a useful green fuel.As a greenhouse gas, carbon dioxide-or CO2- -helps warm the atmosphere. But too much of that gas has lately been driving an
28、 atmospheric fever. Wouldnt it be great if that CO2 pollution could instead be turned into a useful product? One team of researchers thinks it has found a way to do just that. They are turning CO2 into ethanol(乙醇), which is the octane-boosting- chemical added to most stocks of U.S. petrol. Adding et
29、hanol reduces the energy in a gallon of petrol. But it offers a nice tradeoff (折衷) It helps that petrol burn more cleanly.To do that, the researchers first needed to break CO2 into its building blocks. It turns out that this is a tough task. In such circumstances, chemists often turn to a catalyst (
30、催化剂) .Such materials speed up a chemical reaction. Here, the group developed a brand-new catalyst, notes Di-Jia Liu, a chemist at Argonne National Laboratory and head of the team that developed this catalyst. With it, the voltage(电压) needed to start the new co-to-ethanol- reaction is far less than w
31、hats needed to kick-start similar reactions, Liu says. And while chemical reactions often make many unwanted byproducts, this new one does not. More than 90 percent of the final product is ethanol, he reports. The new catalyst uses a bed of carbon to support copper atoms. Those copper atoms are spre
32、ad out, as if social distancing. When electricity runs through the catalyst, groups of distant copper atoms join up, forming clusters, of 3 or 4 atoms. By firing powerful X-rays at them, Liu says his team could monitor the chemical reaction as it happens. Those clusters activate the catalyst, helpin
33、g the CO2 react with water. The CO2 now splits into carbon and oxygen atoms. And the water-or H2O-splits into hydrogen and oxygen atoms. All of these freed atoms finally rearrange themselves to form ethanol.Paul Kenis, a chemical engineer at the University of Illinois at Urbana-Champaign, says the n
34、ew paper describes a very interesting, cool catalyst However, Anna Klinkov, chemist at the University of Waterloo in Canada, remains a bit skeptical. A closer look at the reaction is needed,she says. It could be more complex than what is presented.”The researchers are continuing to experiment with t
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2019届人教A版数学必修二同步课后篇巩固探究:2-1-1 平面 WORD版含解析.docx
