高二7、8班第15周周末练习(生态学部分)
高二7、8班第15周周末练习（生态学部分）
1．下列哪项是不能在生物之间循环的？
A．矿物质 B．碳 C．能量 D．水分
2．原生演替和次生演替的主要区别是
A．影响因素不同 B．起始条件不同 C．产生的植物种群不同 D．产生的生物数量不同3．下图为生态系统中能量流动图解部分示意图，①②③④⑤各代表一定的能量值，下列各项中正确的是
A．第三营养级流向第四营养级的能量传递效率为（（③+④）／②）×100%
B．图中④包含了次级消费者粪便中的能量
C．食物链的中各营养级获得能量的方式及能量的用途完全相同
D．在人工饲养的高产鱼塘中初级消费者获得的总能量往往大于⑤
4．要想比较经济的利用生产者固定的太阳能，应选择下列哪项作为食物的来源A．蔬菜和小麦B．小麦和猪肉C．猪肉和草鱼D．牛肉和鸡蛋
5．在分析种群年龄特点时，可将种群分为生殖前期(甲)、生殖期(乙)及生殖后期(丙)三个年龄层，比较这三个年龄层成员数量在种群中所占的比例，可推测该种群未来的成长情形。下列哪一选项最可能是濒危物种的种群
A．甲>乙>丙 B．甲<乙<丙 C．甲=乙=丙 D．甲>乙=丙
6．某海滩黄泥螺种群现存量约3000吨，正常状况下，每年该种群最多可增加300吨，为充分利用黄泥螺资源，又不影响可持续发展，理论上每年最多捕捞黄泥螺的量为
A．不超过300吨 B．1650吨 C．1500吨 D．3000吨
7．2008年12月23日,大陆赠送的大熊猫团团和圆圆顺利到达台湾。下列关于大熊猫的说法正确的是A．大熊猫数量少是因为它处于第四营养级以上,获得的能量少
B．如果把团团和圆圆引入东北长白山自然保护区,大熊猫的数量会呈指数增长
C．如果大熊猫灭绝，人类就会失去这个物种的基因库
D．大熊猫的人工受精成功,说明了大熊猫自然保护区没有存在的必要了
8．在生态系统中，连接生物和无机环境的两个重要组成成分及主要生理过程分别是：
A．生产者、非生物的物质和能量；光合作用、呼吸作用
B．消费者、有机物质；呼吸作用、光合作用
C．生产者、消费者；光合作用、呼吸作用
D．生产者、分解者；光合作用、呼吸作用
9．为缓解人口增长带来的世界性粮食紧张状况，人类可以适当改变膳食结构。若将（草食）动物性与植物性食物的比例由1：1调整为1：3，地球可供养的人口数量是原来的倍。（能量传递效率按
10%计算，结果精确到小数点后两位数字）
A．1.49 B．1.69 C．1.96 D．3.00
10．如下图表示某生态系统中4种成分之间的关系。
以下相关叙述中，正确的是
A．1和2包含着所有种群构成的群落
B．3代表的一定是原核生物
C．①代表光合作用，②代表呼吸作用
D．4可以表示大气中的CO
2
11．在某池塘中，第一次捕获鲫鱼106条，做上标记后放回，第二次捕获鲫鱼91条，其中有标记的25条。请估算这个池塘中共有鲫鱼多少条？
A ．386条
B ．286条
C ．186条
D ．86条
12.图甲是生态系统中碳循环示意图，图中“→”表示碳元素的流动方向。
（1）在图甲表示的生态系统中，分解者是 （字母），C →A 表示的生理过程是___ _。 （2）碳元素在生物群落和无机环境之间的循环主要是以____ ____形式进行的。
（3）用图乙表示该生态系统的能量金字塔，请将碳循环示意图中相应字母填在对应的营养级中。 （4）若该生态系统能量流动传递效率为10％，下列对此理解正确的是 。
A ．上一营养级约有10％的个体被下一营养级吃掉
B ．上一营养级约有10％的能量流到下一营养级
C ．每一营养级通过呼吸作用消耗的能量为90％
D ．分解者能量约占生产者能量的10％
13.农田施肥不仅可以对农作物的生长发育产生影响，同时也能影响农田杂草群落的多样性，进而影响杂
草种子库的多样性。下表为长期不同处理下土壤杂草种子库的主要组成，请分析回答：
注： “0”表示杂草种子在处理区没有出现，不考虑不同种子萌发率的差异。
（1）从表中数据分析可知：
① 不同处理区的杂草物种组成是不同的，但优势种是相同的，即是 。
在 处理区（即不同施肥组合）的物种丰富度最大。
② 在各处理区 种子数量无显著差异，表明上述处理对该物种没有明显的选择作用。 （2）通过以上数据分析可以得出 和 影响杂草种子库的多样性。
（3）此农田生态系统若没有人工管理将会出现 现象。在自然情况下，这一变化发展的趋势是
物种越来越 、结构越来越 、功能越来越完善，直至达到 。 参考答案：1——11 C B D A B A C D B D A
12.（1）B 光合作用 （2）CO 2（3） 见右图 （4）B 13.（1）①碎米莎草 N 、P 、K ②水虱草 （2）是否施肥 不同施肥组合
（3）群落演替 多样 复杂 顶极群落（稳态）
甲
乙
高三年级英语周末作业8
一、单项选择 1. Money can not take ______place of our happiness, which is _______common sense for many of us. A. the ; a B. 不填; a C. the ; the D. 不填; the 2. The system has been designed to give students quick and easy _______to the digital resources of the library. A. access B. passage C. way D. approach 3. There is clear evidence _____ smoking does harm to our health. A. where B. what C. which D. that 4. Whom would you rather _________ you to the hospital? A. have sending B. have send C. having send D. having sent 5. The children talked so loudly at dinner table that I had to struggle ________. A. to be heard B. to have heard C. hearing D. being heard 6. The discovery of new evidence led to _______ . A. the thief having caught B. catch the thief C. the thief being caught D. the thief to be caught 7. –Will you read me a story, Mummy? --OK. You ______have one if you go to bed as soon as possible. A. might B. must C. could D. shall 8. The experts suggested the problem worth paying attention ________ at the meeting. A. to be discussed B. to been discussed C. being discussed D. should be discussed 9. Ladies and gentleman, welcome to my program. _______ me this evening is Dr. Gary. A. To join B. Join C. Joined D. Joining 10. The party will be held in the garden, weather ________. A. permitting B. to permit C. permitted D. permit 11. –What did you say? --So you _______ to me. A. won’t listen B. didn’t listen C. haven’t listened D. weren’t listening 12. There is a real possibility that these animals could be frightened, ________ a sudden loud noise. A. being there B. there being C. should there be D. there was 13. _______ many times , he still couldn’t understand it. A. Told B. Having been told C. Having told D. He had been told 14. ----Can you think of another good idea? ----This is the best approach I can imagine ________ the work ahead of schedule. A. to accomplish B. to accomplishing C. accomplishing D. accomplished 15. ---- Why is the cake so expensive? ---- Maybe you don’t know a cake made of wheat costs less than _____ made of rice. A. one B. that C. the one D. another 二、完型填空 As educators, we often never know the influence we have on our students. It is always wonderful to have ___16___ students visit us and share the successes they have achieved. And those glorious moments, when we can instantly see the influence we have on a student, fuel us to continue making connections hoping to ___17___ in the life of every child. As a music teacher for twenty-seven years, I have always known that music __18___ the soul. It can ___19___ all kinds of barriers to reach students in a very special way. It can be the ___20___ for each child to find their light. I would like to share a story about it. For a few years I was blessed with the opportunity to teach ___21___ students one afternoon a week. One of my most ___22___ students was a five-year-old girl called Vanessa, who had difficulty walking, and could not speak. We ___23___ sat on the floor for our music lessons and Vanessa liked to sit on my lap. One of her favorite songs was “John the Rabbit.” It was a call and response song wher e I sang the call and the students ___24___ twice while singing the repeating phrase, “Oh, yes!” Vanessa liked to ___25___ her hands together with mine and clap with me. We probably performed that song during every class, Vanessa and I clapping together. But she ___26___ said or sang a word. One day late in the school year, when the song was finished, Vanessa turned around, looked me dead in the eye, clapped her tiny hands twice and said the words “Oh, yes!” I opened my mouth in ___27___ and for that moment I was the one who could not speak. When my heart ___28___ started beating again, I looked over at the assistant teacher to find her also ___29___. Through music, we had made an awesome connection. Several years later, I passed Vanessa on the street in town. I stopped my car and waved to say hello. She waved back with a big ___30___ on her face and then clapped her hands twice, imitating the song we had ___31___ so many times in our music class. This precious little girl,
高二英语周练
高二英语周练 第一节完形填空(共20小题；每小题1.5分，满分30分) 阅读下面短文，掌握其大意。然后从各题所给的四个选项中，选出最佳选项Nowadays many people enjoy 1 activities—walking, cycling or mountaineering. People often 2 the act of climbing high and difficult mountains to be astonishing. Why are men and women 3 to suffer cold and hardship, and to 4 on high mountains? This astonishment may be caused by the difference between mountaineering and other forms of activities to which men 5 their leisure time. There are no man-made rules, as there are for 6 sports as golf and football. There are, of course, principles of different kinds. It would be dangerous if you 7 them. But it is this freedom from man-made rules 8 makes mountaineering attractive to many people. Those who climb mountains are free to choose their own 9 . If we 10 mountaineering with other more familiar sports, we might think that one big difference is that mountaineering is not a kind of 11 work at all. 12 , it is only our misunderstanding. There are n o “matches” 13 “teams” of climbers, but when climbers are on a rock face linked by a rope which their lives may 14 , there is obviously teamwork. A mountain climber knows that he may have to fight with natural 15 that are stronger and more powerful than man. A mountain climber 16 to improve his skill year after year. A skier has probably passed his best by the age of thirty, and most tennis champions 17 in their early twenties. But it is not 18 for men of fifty or sixty to climb the highest mountains in the Alps. They may take more 19 to do that than younger men, but they probably climb more skillfully and with less effort, and they certainly experience equal 20 . 1. A. physical B. easy C. difficult D. mental 2. A. find B. respect C. treat D. consider 3. A. scared B. willing C. afraid D. suitable 4. A. have a break B. make sense C. take a risk D. lose weight 5. A. give B. hope C. discover D. receive 6. A. so B. various C. different D. such 7. A. applied B. worried C. ignored D. noticed 8. A. which B. that C. how D. why 9. A. methods B. tradition C. styles D. activities 10. A. contact B. relate C. replace D. compare 11. A. pair B. complex C. team D. simple 12. A. Otherwise B. Therefore C. Furthermore D. However 13. A. between B. within C. from D. beyond 14. A. keep on B. go on C. depend on D. focus on 15. A. storms B. forces C. energies D. strengths 16. A. tries B. wants C. continues D. decides 17. A. will be B. are C. appear D. is 18. A. unusual B. normal C. common D. frequent 19. A. gifts B. means C. brains D. time 20. A. astonishment B. ambition C. concern D. enjoyment 第二部分阅读理解阅读下面短文，从每题所给的A, B, C, D四个选项中，选出最佳选项。(共20小题, 每小题2分, 满分40分) A
苏教版五年级上册数学第十五周周末练习(三)
五数周末作业姓名____________ 一、填空题 1. 3.27×3.68的积是（）位小数。 3.57÷ 4.5商的最高位在（）位。 2. 0.8时=（）分 0.8平方千米=（）平方米1.2平方千米=（）公顷 3400平方米=（）公顷 3. 0.32÷1.6=（）÷16 2.8÷0.25=2.8×（） 3.02×1.3=30.2×（） 6.5×0.125=6.5÷（） 4.如果3424÷32=107,直接在（）里填空。 34.24÷0.32=（） 3424÷3.2=（） 342.4÷32=（） 10.7×3.2=（） 5 1.5米长的钢条重2.4千克，平均每千克（）米，每米重（）千克。 6. 甲÷乙=2.4……0.5，当甲和乙同时缩小100倍，商是（） 余数是（）。 7. a÷b=2.5，如果a不变，b扩大4倍，商是（）； 如果a扩大4倍，缩小4倍b商是（）。 8. 在（）里填＜、＞、＝ 4.5×1.2（）4.5 6.8÷0.8（）6.8 1.2÷0.1（）1.2×10 1.98×0.87（）1.98÷0.87 7.04公顷（）7公顷400平方米9. 一个直角三角形的三条边分别是1.2米、1.6米和2米，这个三角形的面积是（）平方米，斜边上的高是（）米。 10. 100吨海水可以晒0.8吨盐，60吨海水晒（）吨盐。要晒3.2吨盐，需要（）吨海水。 11. 每套衣服用布2.3米，45米可以做（）套；一辆车每次运货4.6吨，42吨货物要运（）次； 12. 3.26÷0.9当商3时，余数是（）；当商是3.6时， 余数又是（）。 13. 某市出租车的收费标准如下。 小亮乘出租车行了6.5千米，应付（）元；如果付出12.5元，一共行（）千米。 二、判断： 1.A（≠0）乘1.01的积一定大于A。 ( ) 2.无限小数一定是循环小数，循环小数不一定是无限小数。（） 3.一个数除以1.1，商一定小于这个数。（） 4.两个小于1的小数相乘，积一定比这两个数都要小。（） 5.一个数除以0.25，就相当于把这个数扩大4倍。（） 三、选择题 1. 下列各式中积最小的是（）。 A、4.8×0.27 B、0.027×480 C、48×0.27 2 .计算除数是小数的除法时，一般先把（）化为整数。 A、被除数 B、除数 C、被除数和除数 3.将一根木棒锯成三段需8.4分钟，若锯成8段需（）分钟。 A、22.4 B、29.4 C、63.2 4.白菜每千克1.56元，买了2.4千克，应付（）元 A、 3.744 B、 3.74 C、 3.75 D、 3.7 5. 3.5千克的大豆可以榨油1.4千克，求要榨5千克油需多少大豆？ 下列算式错误的是（） A、3.5÷1.4×5 B、1.4÷3.5×5 C、5÷1.4×3.5 四、计算1.列竖式计算（第一、二题得数保留一位、两位小数） 4.8÷2.3 2.45×0.32 2.04÷2.4 2.脱式计算（能简算的要简算） 4.35÷0.25÷0.4 6.57-（3.57-1.5） 0.48÷1.2+0.48÷0.8 7.6×0.99 4.8×0.2÷4.8×0.2 9.8×6.5+0.98×35 10.2×6.8 （2.4+0.16）÷0.8 6.7×8+3.3÷0.125 （1.25×2.5）×0.8×4 3.75÷[0.3×（1.34-0.84）] 五、应用题： 1.一辆汽车 2.5小时行210千米，照这样计算行378千米需要多少 小时？ 2.1992年，李老师的月工资348元，2012年李老师的月工资比1992 年的6.5倍还多38元，2012年李老师的月工资多少元？ 3.李奶奶家今年上半年一共用水3 4.2吨，张奶奶家今年第一季度共 用水25.8吨，谁家平均每月用水量多？多多少吨？ 4.一块梯形地，上底300米，下底500米，高是375米，如果这块 地共收小麦78吨，平均每公顷收小麦多少吨？ 5.一间房子用方砖铺地，用边长0.4米的方砖需要270块。如果改 用边长是0.3米的方砖一共需要多少块？ 6. 铅笔每盒20枝钢笔每盒20枝 进货价：每盒10元进货价：每盒70元 零售价：每把0.8元零售价：每枝4.2元 这个文具店一共卖出铅笔30枝，钢笔15枝。这一天卖这两样 各盈利多少元？
山东省济南外国语学校秋高二化学必修作业：周末作业
高二化学周末作业（9 21） 姓名 学号 1．对热化学方程式C(s)＋H 2O(g)===CO(g)＋H 2(g) ΔH ＝131.3 kJ·mol －1 最准确的理解是 ( ) A ．碳和水反应吸收131.3 kJ 热量 B ．1 mol 碳和1 mol 水反应生成一氧化碳和氢气，同时放出131.3 kJ 热量 C ．1 mol 碳和1 mol 水蒸气反应生成1 mol CO 和1 mol H 2，同时吸收131.3 kJ 热量 D ．1个固态碳原子和1分子水蒸气反应吸热131.1 kJ 2．已知热化学方程式(Q 1、Q 2均为正值)： C(s)＋12 O 2(g)===CO(g) ΔH ＝－Q 1 kJ·mol － 1， C(s)＋O 2(g)===CO 2(g) ΔH ＝－Q 2 kJ·mol － 1，有关上述反应的叙述错误的是( ) A ．Q 1 2019-2020学年度第一学期高二英语周练试卷 第二部分：阅读理解（共两节，满分40分） 第一节（共15小题；每小题2分，满分30分） 阅读下列短文，从每题所给的四个选项中，选出最佳选项。 A Well, parents, surprise! Lots of us are using Twitter and Facebook to find rides, and not just to school. It’s awkward to call a friend and ask for a ride, and half the time they’ll say, “Sorry, my car is full.” But with Twitter, you just tweet #Ashleys Pool Party and look for other people heading the same way. It may sound risky, but many teens stay within their own social circles to find rides, and don’t branch out beyond friends when asking on Twitter. For me, I only rideshare with people I know, but to some young people, especially those taking longer trips, stranger danger is less of a concern. The sharing economy got big during the recession（经济衰退）. It allows people to access more goods and services using technology, while also allowing them to share cost. And that technology, for me, is what the car was for my mom, a gateway to more freedom. According to the researchers at the University of Michigan, 30 years ago, eight in ten American 18-year-olds had a driver’s license. Today it’s six in ten. So it’s not that surprising that on my 16th birthday I wasn’t rushing to get a license. All I wanted was an iPhone. Juliet Schor (Sociology professor at Boston College) knows people of my age love being connected and for young people driving means they have to disconnect from their technology, and that’s a negative. So if they could sit in the passenger side and still be connected, that’s going to be a plus. To me, another plus is ridesharing represents something more than trying to save money. I see it as evidence that people still depend on each other. My generation shares their cars and apartments the way neighbors used to share cups of sugar. For the system to work, some of us still need our own cars. But until I get my own version of the silver Super Beetle, you can find me on Twitter. 21 The writer usually rideshares with _____. A. anyone heading the same way B. people he knows 第二周周末练习(1～3节) 一、选择题 1、手偶然接触到针尖，便立即缩回，并会产生痛觉，产生痛觉的部位在（） A、大脑皮层 B、脑干 C、脊髓 D、皮肤 2、在汽车行驶的途中，即使我们闭上眼睛也可以感受到车子向右转还 是向左转，加速还是刹车，这是因为（） A、我们耳朵的听觉十分灵敏可以听到汽车行驶的声音 B、耳蜗中位觉感受器 C、通过身体的各种感觉感受到的 D、前庭和半规管的作用 3、唐诗《枫桥夜泊》中的名句“姑苏城外寒山寺，夜半钟声到客船” 中包含着声学知识．对其中声现象的解释中，错误的是（） A、客船上的人根据音调知道是钟发出的声音 C、钟声通过空气传 播到客船 B、客船上的人根据音色知道是钟发出的声音 D、钟声是由钟的振 动产生的 4、“花气袭人知骤暖，鹊声穿树喜新晴”，这是南宋诗人陆游《村居 书喜》中的两句诗，诗中“花气袭人”和“鹊声穿树”描述了诗人的感觉正确的是（） A、听觉和视觉 B、嗅觉和视觉 C、触觉和味觉 D、嗅觉和听觉 5、对酸味最敏感的区域划分正确的是（阴影部分为敏感区）（） 6、吃棒冰时，人感觉冰凉，且舌头有点发麻。这是由（） A、舌的温度感觉引起的 B、舌的味觉引起的 C、舌的痛觉引起的 D、多种刺激综合作用后产生的感觉引起的 7、人具有的四种基本味觉是（） A、酸、甜、苦、咸 B、酸、甜、苦、辣 C、酸、甜、咸、涩 D、酸、甜、辣、涩 8、蛇没有耳朵的，但是我们都知道“打草惊蛇”这一成语。使蛇离开的原因是（） A、打草时，草及周围的地面发生了振动，蛇感到危险而离开 B、蛇的舌头能探测人的气味，故“知趣”地离开 C、蛇有探测红外线的能力，故“知趣”地离开 D、蛇的皮肤被草弄的痒痒的，被迫离开 9、用手掌托在耳郭后边，会感到前方传来的声音变大，这说明耳郭能够（） A、产生声波 B、传递声波 C、收集声波 D、感受声波 10、俗话说：“入芝兰之室，久而不闻其香；入鲍鱼之室，久而不闻其臭。” 据所学科学知识分析，这种现象说明 高二生物第6周周末作业 编写：左婷 班级___________ 姓名_______________ 一、选择题 1、蛋白质工程是新崛起的一项生物工程，又称第二代基因工程。下图示意蛋白质工程流程， 图中A、B在遗传学上依次表示（） A．转录和翻译B．翻译和转录C．复制和转录D．传递和表达 2、几百年来在珠江三角洲区流行的“桑基鱼塘”是将低洼稻田挖深作塘，塘内养鱼，塘基上种 桑，用桑养蚕，蚕粪养鱼，鱼粪肥塘，塘泥作肥料，从而获得稻、鱼、蚕三丰收。下列有关“桑基鱼塘”的说法正确的是（） A．该生态系统在一定程度上实现了对能量的多级利用 B．该生态系统中营养级增多，散失的能量也增多 C．该生态系统物种多样性得到了较好的保护 D．该生态系统稳定性的维持不需要人的干预 3．不属于目的基因与运载体结合过程的是（） A．用一定限制酶切割质粒露出黏性末端B．用同种限制酶处理目的基因露出黏性末端C．将目的基因导入到受体细胞中进行扩增D．用DNA连接酶将目的基因和质粒连接 4、与常规武器相比，生物武器具有( ) ①传染性强②污染面积广，不易被发现 ③有一定的潜伏期④像核武器一样破坏建筑物 ⑤自然条件下的大雪、低温、干燥、日晒等不影响生物武器的杀伤力 A．①②③B．②③④⑤C．①②③④⑤D．①②③④ 5．质粒是基因工程中最常用的运载体，它的主要特点是（） ①能自主复制②不能自主复制③结构很小④蛋白质⑤环状RNA ⑥环状DNA ⑦能“友好”地“借居” A．①③⑤⑦B．①④⑥C．①③⑥⑦D．②③⑥⑦ 6、植物组织培养时，切取胡萝卜块强调要切取含有形成层的部分，原因是( ) A．形成层细胞具有分裂能力，分化程度低，易形成愈伤组织 B．形成层位置好切C．其他部位已死亡D．形成层细胞已高度分化 7、植物细胞表达全能性的原因是( ) A．能形成愈伤组织B．能再分化 C．有细胞壁D．细胞核内含本物种的全部基因 8、要获得番茄和马铃薯的有活力的原生质体，利用的物质是( ) A．淀粉酶和脂肪酶B．麦芽糖酶和蛋白酶 C．纤维素酶和果胶酶D．蛋白酶和果胶酶 9．珊瑚虫与藻类共生，提高了珊瑚礁生态系统的生产力，其原理是（） A．系统结构决定功能原理B．整体性原理 C．系统整体性原理D．协调与平衡原理 10、单克隆抗体的制备过程中引入骨髓瘤细胞的目的是( ) A．能使杂交细胞大量增殖B．产生特异性更强的抗体 C．使细胞融合容易进行D．使产生的抗体纯度更高 11、动物细胞融合和植物原生质体融合决定于( ) A．细胞膜的流动性B．细胞膜的选择透过性 C．细胞质的流动性D．细胞质酶的活性 12、关于动物细胞融合的叙述不正确的是( ) A．动物细胞融合时需人工诱导B．动物细胞融合时应先用纤维素酶处理 C．动物细胞融合时存在细胞核的融合D．动物细胞融合最主要的目的是制备单克隆抗体13、“退耕还林还草”是哪种生态工程建设的措施（） A．小流域综合治理B．城市环境工程 C．草原生态恢复工程D．湿地生态恢复工程 14．生物数量超过了环境的承载力后，就会破坏生态工程的哪一原理（）A．整体性原理B．系统性原理C．协调与平衡原理D．工程学原理 15、某同学在学习“细胞工程”时，列表比较了动植物细胞工程的4项有关内容，你认为不 高二2（18）英语限时训练1 命题：周小华审题：严玲时间：2016.3.1 一、完形填空 Mobile phones are everywhere in big cities. It seems that 1 can survive without one. Mobile phones are a great 2 to stay connected with friends and family. 3 , it is important to remember that there are certain times 4 you should not be using your phone, especially as a student, during school. 5 you are in class, you should not be sending your friends text messages 6 taking phone calls. Your classmates and teachers should not have to deal with this rude 7 . Aren’t you at school to learn? In the United States, students would never be allowed to 8 their mobile phones during class. If you were to send or 9 a text message you would probably be kicked 10 class. It is very disturbing to hear a lot of tones and ringing during 11. There are many more rules for mobile phone use in America and it is to 12 respect for those around you. As a teacher in China, I have to 13 students using mobile phones every day. I have told my class to 14 their phones, but many students do not listen. The 15 to be connected all the time seems to be more 16 than the desire to learn. It’s easy to understand 17 it is so tempting(诱惑人的) to have your phone on during class. It seems so easy just to send a short text message; it’s not hurting anyone, is it? But you may actually be hurting 18 when you do this. Your teacher knows when you use your phone and may give you a 19 grade. Sendi ng a text message also takes your attention away from what’s going on in class, you may 20 something important. 1. A. one B. somebody C. someone D. no one 2. A. way B. road C. method D. path 3. A. But B. However C. So D. Therefore 4. A. which B. that C. when D. where 5. A. After B. Before C. Because D. If 6. A. or B. and C. as well as D. instead of 7. A. act B. action C. habit D. behavior 8. A. have B. take C. use D. send 9. A. receive B. accept C. make D. get 10. A. of B. off C. out D. out of 11. A. school B. class C. office D. home A. at good price B. at a good price C. in good price D. in a good price （）2. The red socks $4. A. are B. is C. am D. can （）3.—? —It's red and blue. A. Where's your shirt B. What color is your shirt C. What's color your shirt D. How old is your shirt （）4. We have T-shirts blue, red, yellow and black only 25 yuan. A. in; in B. on; by C. in; for D. on; on （）5. girls, we have many skirts, are very nice. A. To; They B. For; They C. To; It D. For; It （）6. —Does the bookstore math books? —Yes. Do you want to______ one? A. sell; buy B. sell; sell C. buy; buy D. buy; sell （）7. —Can I help you? —. I want a red skirt. A. Thank you B. I'm sorry C. You're welcome D. Yes, please （）8. Twenty-eight and twelve A. are fourty B. is forty C. is fourty D. are forty （）9．Please come ______ see ______ yourself at Huaxing Clothes Store. A．to；about B. at; for C．and；for D. to; at （）10. — What is the ____________ of your sweater? —It’s $ 50. A. color B. size C. price D. style 三、完形填空。 Hello，everyone! Hualing’s fantastic (极好的)sale! You name it，and we l6 it at a very good price. Do you like sweaters? 17 _ you like them at low (低的) prices? We have sweaters18 all colors for 50 yuan each（每一件）! Do you need 19 bag for sports? We have great bags 20 just 6 yuan! For young boys and girls, we 21 T-shirts in red, green, yellow, orange, blue and black for 22 15 yuan! And socks for just 1 yuan! 23 that's not all. Can't you believe it? 24 here and see for 25 ! （）1. A. are B. buy C. have D. do （）2. A. Do B. Are C. Does D. What （）3. A. on B. in C. at D. of （）4. A. a B. an C. the D. / （）5. A. of B. at C. for D. in （）6. A. are B. have C. has D. there are （）7. A. every B. price C. only D. all 高二英语第六次周末练习卷 Ⅰ.单项填空 1. —May I open the window to let in the fresh air? —__________！ A. Come on B. Take care C. Go ahead D. Hold on 2 Her father will never __________ her marrying the old man with lots of money. A. approve of B. admit C. allow D. agree 3. We won’t __________ students staying up late. A. approve of B. admit to C. agree to D. stick to 4. They passed their knowledge __________ from one generation __________ another. A. down; to B. on; to C. down; in D. on; in 5 In the company he is __________ to Tom, while in life he is Tom’s junior __________ two years. A. senior; by B. junior; by C. senior; to D. junior; to 6. A great number of students __________ said they were forced to practice the piano. A. to question B. to be questioned C. questioned D. questioning 7. If you want to see the chairman of the department, you’d better make an __________ with his secretary first. A. admission B. agreement C. appointment D. assumption 8. After walking for ten minutes, she suddenly realized that she _________ in the wrong direction. A. is walking B. has been walking C. had been walking D. walked 9. —Could you turn down the r adio a little? I can’t __________ my studying. —Sorry. I thought you had slept and didn’t know you were studying. A. draw attention to B. concentrate on C. rely on D. devote to 10. The time in Beijing is 8 hours ______ ____ London. A. more than B. in front of C. faster than D. ahead of 11. So much interest __________ that most visitors simply run out of time before seeing it all. A. offers Beijing B. Beijing offers C. does Beijing offer D. Beijing does offer 12. Of course, we must work hard. __________ we should learn to take good care of ourselves. A. Therefore B. In a word C. As a result D. Meanwhile 13. Bill wasn’t happy about the delay of the report by Jason，and __________. A. I was neither B. neither was I C. I was either D. either was I2019-2020学年度第一学期高二英语周练试卷(含答案)
第2周周末练习(1—3节)
高二生物6周末作业
高二英语练限时训练1及答案 (1)
七年级英语第15周周末作业
高二英语第六次周末练习卷