1、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 peoples 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 toit. In a recent investigation, researchers found that stud
2、ents who were permitted to use laptops or tablets in the classroom performed worse than those who did notand 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 couldnt pay attention to the l
3、essons. 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 re
4、lating 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
5、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, s
6、uggesting that even allowing 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 wh
7、ich 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 device B.the debate C.the classroom D.the study 2.Who suffered from the use of smar
8、t 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
9、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? A.Using laptops could help students perform better in a course. B.T
10、he 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
11、 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 th
12、e 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 call
13、ed 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
14、it produces depends on how sweaty the person is, but one persons T-shirt typically produces 10ml, about a mouthful.”The device has been put on show at the Gothia Cup-the worlds largest international youth football tournament. Mattias Ronge, chief executive of Stockholm-based advertising agency Depor
15、tivo, said the machine had helped raise awareness for UNICEF, but in reality had its limitations.“People havent produced as much sweat as we hoped right now the weather in Gothenburg is lousy,” Mattias Ronge said. “So weve equipped the machine with exercise bikes and volunteers are cycling like craz
16、y. 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 p
17、roduce 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 works B. tell us who invented the sweat
18、machineC. show the importance of the United Nations D. 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 wr
19、itten 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 G
20、reener 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 wi
21、th Vegetation-like trees,flowers and other plants.But these days,outdoor time is competing for a childs attention with indoor activities.Children may find it difficult to resist computers,television and electronic games._10_.All these indoor activities can hurt a childs physical and mental health.Do
22、ctor 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 computeriz
23、ed tests for four times._11_.They found that the children with higher contact with green space had better ability to memorize.They were also more attentive._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
24、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 childre
25、n.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 resea
26、rchers created mathematical models to compare the amount of vegetation.III. 完型填空That holiday morning I didnt 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 b
27、y 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 ba
28、ck-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 and cleaning 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
29、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_ eld
30、erly 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 l
31、earn, 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 amjust sixteen, and there was this old man who must have been usefully engaged perhaps before the sun appeared above the horizon.14 Aforces Ballows
32、 Ccauses Dforbids15 A. otherwise Btherefore Chowever DBesides16 Aparking lot BB.bus stop Cschool Dmarket17 Ainteresting Bsurprising Cawful Duseful18 Anoticed Brecognized Ccalled Dassisted19 Aback Bhandle Cwheel Dseat20 Asearched Bleft Cmoved Dwandered21 Astopped Bstarted Cintended Dfinished22 Across
33、ed Bslipped Cdisturbed Dinspired23 Aattractive Bshiny Csimple Dexpensive24 Arepairmen Bbusinessmen Cdrivers Dcyclists25 Abusy Bcontent Ccareful Dbored26 Awaving Blooking Claughing Dpointing27 Aabout Bfor Cwith Dlike28 Aworry Brespect Csympathy Dpride29 Acleaning Bfixing Creplacing Dcovering30 Astill
34、 Byet Cagain Dsoon31 Alesson Bsubject Cskill Dfact32 Abusiness Bliving Csuccess Dright33 Atired Bdoubtful Cfearful DAshamed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,
35、but I just wasnt 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 didnt miss h0me or re
36、ally feel any kind of emotion at all except tired. There was so much for me to learn that I didnt 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 c
37、orner, _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 w
38、asnt 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 th
39、at 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 didnt come. I real hoped the girl wouldtell her mom what been happened. And next time the mom wouldnt 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_6