四川省宜宾市一中2018-2019学年高三英语上学期第12周周练题AAs smart devices continue to fill people’s daily life, the debate over their place in the classroom has grown increasingly. Now, a study conducted at the United States Military Academy just might put an end to it.In a recent investigation, researchers found that students who were permitted to use laptops or tablets in the classroom performed worse than those who did not—and those with higher initial GPAs(平均成绩) were most heavily affected.While some argue that laptops aid students in note-taking and comprehension, many say that they couldn’t pay attention to the lessons. To get to the bottom of the issue, researchers investigated the effect of laptops and tablets on student performance in a course at a school.In the study, the class was then divided into two treatment groups. The first treatment group was permitted to use laptops and tablets for purposes relating to their lesson. If the students were obviously distracted, professors could stop them from using the devices. In the second group, students could only use tablets, making the screen easily visible to the professors. When it came time for final exam scores, the researchers found that using a laptop or tablet in the classroom had caused a drop of roughly one-fifth of a standard. The results for the two treatment groups were nearly the same, they say.And, the negative effects were seen most heavily in male students. The estimated effects of the two treatment groups are nearly the same, suggesting that evenallowing students to use computer devices in a manner that is controlled by the professor can have harmful effects on classroom performance.The researchers say that both unrestricted and restricted use may affect students in a number of ways. It could lead to distractions, in which students are checking social media or even doing homework for another class, and it may reduce students’abilities to effectively take notes.1.The underlined word “it”in the first paragraph may refer to ______.A.the deviceB.the debateC.the classroomD.the study2.Who suffered from the use of smart devices most in the study?A.The male students with higher GPAs.B.The students with poor academic performance.C.The students who could use laptops or tablets freely.D.The male students who could use laptops or tablets under control.3.What conclusion did the study draw?A.The professors had no effect on students’scores.B.The first treatment group had a rise of the scores.C.The second treatment group did better than the first.D.The two treatment groups both saw a drop in the scores.4.What can be inferred from the text?ing laptops could help students perform better in a course.B.The negative effects of computer devices depended on gender.C.The distraction caused the drop of the students’scores.D.Restricted use of laptops aided students in taking notes.BA machine that takes sweat-laden (浸满汗水的) clothes and turns the sweat into drinking water is in use in Sweden. The machine makes the clothes turn round quickly, heats them to remove the sweat, and then passes the steam through a kind of special material to make purified waterThe device was built for the United Nations’child-focused charity UNICEF to promote a campaign highlighting the fact that 780 million people in the world lack access to clean water.The machine was designed and built by the engineer Andreas Hammar, known locally for his appearances on TV tech show “Mekatronik”. He said the key part of the sweat machine was a new water purification part developed by a company named HVR.“It uses a technique called membrane distillation (膜蒸馏),”he told the BBC. “We use a special kind of material that only lets steam through but keeps bacteria, salts, clothing fibers and other things out. They have something similar to the International Space Station, but our machine is cheaper to build. The amount of water it produces depends on how sweaty the person is, but one person’s T-shirt typically produces 10ml, about a mouthful.”The device has been put on show at the Gothia Cup-the world’s largest international youth football tournament. Mattias Ronge, chief executive ofStockholm-based advertising agency Deportivo, said the machine had helped raise awareness for UNICEF, but in reality had its limitations.“People haven’t produced as much sweat as we hoped –right now the weather in Gothenburg is lousy,”Mattias Ronge said. “So we’ve equipped the machine with exercise bikes and volunteers are cycling like crazy. Even so, the demand for sweat is greater than the supply. And the machine will never be produced in large numbers, since there are better solutions out there such as water purifying pills.”1. Which of the following is the disadvantage of the sweat machine?A. It takes too long for the machine to produce water.B. It costs a large amount of money to build the machine.C. The amount of water the machine produces is rather limited.D. The water processed by the machine is not clean enough.2. UNICEF is mentioned in the text to ________.A. show how the sweat machine worksB. tell us who invented the sweat machineC. show the importance of the United NationsD. explain why the sweat machine was invented3. What did Mattias Ronge think of the sweat machine?A. It did not work at all.B. It was not worth popularizing.C. It could only be used in summer.D. The water it produced tasted sweet.4.The text is written mainly to tell us that ______________.A. a better solution to purifying dirty water is discoveredB. 780 million people in the world lack access to clean waterC. a machine which turns sweat into drinking water is inventedD. the pill which turns dirty water into clean water is produced七选五Growing Minds Need Greener SpacesIt is not a secret that spending time outdoors is good for us.The more we learn about the benefits of being in nature, the more sense it makes to get outside.____9____.New research suggests that kids may learn better when they are surrounded by greener spaces.Green spaces are spaces filled with Vegetation-like trees,flowers and other plants.But these days,outdoor time is competing for a child’s attention with indoor activities.Children may find it difficult to resist computers,television and electronic games.____10___.All these indoor activities can hurt a child’s physical and mental health.Doctor Payam Dadvand and his team at the Centre for Research in Environmental Epidemiology in Barcelona study the environment effects on health and learning. The researchers used information from satellites to learn how much green space surrounded each school.Over one year, the children took computerized tests for four times._____11_____.They found that the children with higher contact with green space had better ability to memorize.They were also moreattentive.____12____.More trees means less air pollution._____13____.Lisa Freund is an expert in child psychology for the National Institute of Child Health and Human Development.She says more studies are needed to learn the Health and Human Development.She says more studies are needed to learn the reasons that vegetation in and around schools improves mental ability.A.They measured memory and attention span.B.This could be especially important for school children.C.Approximately one half of the world population lives in cities.D.The question of why green spaces affect learning is a new one.E.The research suggests good air quality is the main reason for the results.F.So, in many pans of the world children are spending less and less time outdoors.G.The researchers created mathematical models to compare the amount of vegetation.III. 完型填空That holiday morning I didn’t have to attend school. Usually, on holidays, Mother 14 me to sleep in. And I would certainly take full advantage of it. On this particular morning, ___15___,I felt like getting up early.I stood by my window overlooking the ___16___, having nothing better to do. But as it turned out, I was soon to learn about something ___17___ in life.As I watched several people go by, get into their cars and drive off, I ___18___ an old man on a bicycle with a bucket on its ___19___ and a basket rags and bottles on its back-carriage. He ___20___ from one car to another, washing and cleaning them. From the water on the ground, it seemed that he had already ___21___ washing andcleaning about a dozen or more cars. He must have begun to work quite early in the morning.Several thoughts ___22___my mind as I watched him work. He wasn’t well-dressed. He had on a pair of shorts and a(n) ___23___ T-shirt. The bicycle he rode was not by any means the kind modern ___24___would want to be seen riding on. But he seemed___25___ with life. There he was, working hard at his small business, ___26___ at passers-by and stopping to chat now and then ___27___ elderly men and women on their way to the market nearby.There was a noticeable touch of___28___ in the way he seemed to be doing things —___29___the windscreen (挡风玻璃), then standing back to admire it; scrubbing (擦净) the wheels and ___30___, standing back to see what they look like after the scrub.It was a ___31___ to learn, I felt. At no age need one have to beg for a ___32___if one has good health and is willing to work hard. For a while I felt ___33__ of myself. Young as I am—just sixteen, and there was this old man who must have been usefully engaged perhaps before the sun appeared above the horizon.14 A．forces B．allows C．causes D．forbids15 A. otherwise B．therefore C．however D．Besides16 A．parking lot B．B.bus stop C．school D．market17 A．interesting B．surprising C．awful D．useful18 A．noticed B．recognized C．called D．assisted19 A．back B．handle C．wheel D．seat20 A．searched B．left C．moved D．wandered21 A．stopped B．started C．intended D．finished22 A．crossed B．slipped C．disturbed D．inspired23 A．attractive B．shiny C．simple D．expensive24 A．repairmen B．businessmen C．drivers D．cyclists25 A．busy B．content C．careful D．bored26 A．waving B．looking C．laughing D．pointing27 A．about B．for C．with D．like28 A．worry B．respect C．sympathy D．pride29 A．cleaning B．fixing C．replacing D．covering30 A．still B．yet C．again D．soon31 A．lesson B．subject C．skill D．fact32 A．business B．living C．success D．right33 A．tired B．doubtful C．fearful D．Ashamed语法填空：When I packed up my life and moved from the comforts of my little hometown to Waco, I remember feeling lost. All my friends were so ___34___(excite) to start their own lives, but I just wasn’t sure if I was ready for that yet. Many things worried me. But I hid my fears and when the time ___35____ (final) came, I hugged my mother and said goodbye to her, made the two-hour one-way drive from Coppel to Waco,and set up my new room.For ___36____ first few weeks, I didn’t miss h0me or really feel any kind of emotion at all except tired. There was so much for me to learn that I didn’t have time to think about anything. My energy ___37____(direct) towards figuring out campus, adjusting to college-level ___38_____(course) and remembering the names of every new person __39_____I met. I explored every corner, __40_____ (look) for the perfect place for studying. I learned to set ___41___(I) a schedule of gettting groceries, cleaning my room and doing my laundry on Sundays.Nowadays,in my second semester, I feel like I have almost adapted ___42__ the university life. The transition from high school to college wasn’t so difficult as my mind made me think it would be. One of the best things college has taught me is how __43___(be) independent.短文改错：I was entering the underground parking lot when I heard a little girl shouted, “Mama, Mama! I looked around butsaw the girl in a car alone. I went over to ask her that she needed help. She said she needed to go to the washroombadly. I tell the girl to get out and I would take him to the washroom. She was very glad and ran with me to thewashroom. After she washed her hand, I took her back to car. Still, her mom didn’t come. I real hoped the girl wouldtell her mom what been happened. And next time the mom wouldn’t leave her little daughter in the car on herself.阅读理解1_____ 2_____ 3 ______4______5 _____6 _____7______ 8_______七选五9 _____10 _____11______ 12______ 13______完形填空14______ 15____ 16_____ 17 ______18______ 19______ 20_____21____ 22____23_____24______ 25 _____26 ____27 ______28______ 29 ______30_____ 31____ 32____ 33 _____语法填空34__________ 35__________ 36________ 37__________ 38_________39__________ 40__________ 41________ 42___________ 43_________。