mxt-高三考前热身(三模) (2)
2021年高三下学期考前模拟(三)英语试题含答案
2021年高三下学期考前模拟（三）英语试题含答案第Ⅰ卷(共100分)第一部分：听力（共两节，满分30分）第一节（共5小题；每小题1.5分，满分7.5分）听下面 5 段对话。
每段对话后有一个小题，从题中所给的 A、B、C 三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有 10 秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
例：How much is the shirt?A.￡19.15.B.￡9.15.C.￡9.18.答案是B。
1. What does the man play?A. Sports.B. Musical instruments.C. putergames.2. What will the woman probably do today?A. Attend the wedding.B. Go over her lessons.C. Eatout with the man.3. What’s the man’s major?A. Journalism.B. Business.C. International relations.4. Where does this conversation take place?A. At a bus stop.B. At the railway station.C. At the airport.5. What does the man mean?A. He has been to the restaurant many times.B. He heard about the restaurant from Tom.C. He intends to try a better restaurant.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
高三“绵阳三诊”热身考试物理试题(含答案)
绵阳南山中学届三诊热身考试物理部分1、下列论述正确的是A. 根据麦克斯韦电磁场理论，变化的磁场一定产生变化的电场.B. 光的双缝干涉实验中，若仅将入射光从红光改为紫光，则相邻亮条纹间距一定变大.C. 一切物体都在不停地发射红外线,物体温度越高,辐射的红外线越强.D. 根据爱因斯坦相对论理论，光源与观察者相互靠近时，观察者观察到的光速比二者相互远离时观察到的光速大.2、图a为一列简谐横波在t=0.10s时刻的波形图，P是平衡位置为x=1m处的质点，Q是平衡位置为x=4m处的质点，图b为质点Q的振动图象，则下列说法错误的是A．该波的传播速度为40m/sB．该波沿x轴的负方向传播C．t=0.10s时，质点Q的速度方向向下D．从t=0.10s到t=0.25s，质点P通过的路程为30cm3、A、B两球形行星体积的比值ABVaV=，质量的比值ABMbM=，则绕A、B两行星做匀速圆周运动卫星的最小周期之比ABTT等于A．baB．abC．ab D．1ab4、半径为R的半圆柱形介质截面如图所示，O为圆心，AB为直径，Q是半圆O上的一点，QO垂直于AB。
相互平行的同种单色光a和b从不同位置进入介质，光线a沿直线射向O点，在O点恰好发生全反射，光线b从Q点射入介质，入射角为45°，b光经介质折射后交于直径AB上的P点，则P点距O点的距离为A．33R B．22RC．32R D．12R5、如图所示，额定功率相同，额定电压不同的A 、B 两种电灯，接在如图所示电路中，图中变压器为理想变压器，当在a 、b 两接线柱间加上适当的正弦交流电时，电路中四盏电灯均能正常发光，设变压器的原、副线圈的匝数比为n 1∶n 2，两种电灯正常发光时的电阻比为R A ∶R B ，则 A ．n 1∶n 2=3∶1，R A ∶R B =1:3 B ．n 1∶n 2=2∶1，R A ∶R B =1∶9 C ．n 1∶n 2=2∶1，R A ∶R B =1∶3 D ．n 1∶n 2=3∶1，R A ∶R B =1∶96、如图所示，A 、B 、C 、D 为正四面体的四个顶点，A 、B 、C 在同一水平面上，在A 点放置一个电量为+Q 的点电荷，在 B 点放置一个电量为-Q 的点电荷．一根光滑绝缘杆沿CD 固定，杆上穿有带电量为+q 的小球．让小球从D 点由静止开始沿杆下滑，则关于小球从D 滑到C 点的过程中，下列判断正确的是 A. 电场力先增大后减小 B. 电场力先做负功后做正功 C. 小球机械能先增加后减小 D. 小球做匀加速运动7、如图所示，劲度系数为k 的轻弹簧，下端固定，上端与B 连接，斜面光滑，质量均为m 的A 、B 两物体紧靠在一起，处于静止状态，现用一个平行于斜面向上的拉力F 拉物体A ，使A 物体做加速度为a 的匀加速运动．已知在A 、B 分离前，拉力F 随A 物体发生的位移x 变化的图像如图所示，重力加速度为g ，则下列表述中正确的是 A ．02(sin )F m a g θ=+ B ．ma F 20= C ．02sin mg x k θ=D ．02max k=8、 I ① (6分)某同学在“探究平抛运动的规律”的实验中，先采用图(甲)所示装置，用小锤打击弹性金属片，金属片把球A 沿水平方向弹出，同时B 球被松开，自由下落，观察到两球同时落地，改变小捶打击的力度，即改变球A 被弹出时的速度，两球仍然同时落地，这说明___________．②后来，他又用图(乙)所示装置做实验，两个相同的弧形轨道M ，N ，分别用于发射小铁球P ，Q ，其中M 的末端是水平的，N 的末端与光滑的水平板相切；两轨道上端分别装有电磁铁C 、D ，调节电磁铁C 、D 的高度，使AC=BD ，从而保证小球P 、Q 在轨道出口处的水平初速度v 0相等．现将小球P 、Q 分别吸在电磁铁C 、D 上，然后切断电源，使两小球能以相同的初速度v 0同时分别从轨道M 、N 的下端射出．实+ -ABCD +q A A AB abn 1n 2AB F θFx O0F 0x -验可观察到的现象应该是两小球_______（选填“一定”、“可能”、“一定不”）会碰撞，仅将弧形轨道M整体上移(AC距离保持不变)，重复上述实验，仍能观察到相同的现象，这说明____________________________________________．II(11分)某化学电源电动势为1.5V，内阻为1Ω。
四川省绵阳南山中学高三下学期三诊热身考试英语试题(高频考点)
四川省绵阳南山中学高三下学期三诊热身考试英语试题(高频考点)一、听力选择题1. What are the speakers talking about?A．A new office.B．A change of their jobs.C．A former colleague.2.A．The food tastes differently.B．The man should see a different view.C．The food is worth the price.D．The prices on the menu are ridiculous.3. What will the speakers do next?A．Check the map.B．Leave the restaurant.C．Park the car.4. What’s the probable relationship between the speakers?A．Professor and student.B．Boss and secretary.C．Manager and applicant.5.A．The actor greeted the actress with a loud cheer.B．The actress paid much attention to the actor.C．The audience became excited when they saw the actor.D．The actress was warmly welcomed by the audience.二、听力选择题6. 听下面一段较长对话，回答以下小题。
1. Why does Kevin prefer cooking?A．It’s healthy.B．It’s relaxing.C．It’s economical.2. What does the man think of English food?A．Sweet.B．Tasteless.C．Salty.3. What will the speakers have tonight?A．British food.B．Chinese food.C．Indian food.7. 听下面一段较长对话，回答以下小题。
mxt-高三考前热身(三模)
华南师大附中高三考前热身数学（理科）本试卷共4页，21小题，满分150分．考试用时120分钟． 注意事项: 1.答卷前，考生务必用黑色字迹钢笔或签字笔将自己的姓名和考生号、试室号、座位号填写在答题卡上。
用2B 铅笔将试卷类型(A)填涂在答题卡相应位置上。
2.选择题每小题选出答案后，用2B 铅笔把答题卡上对应题目选项的答案信息点涂黑，如需改动，用橡皮擦干净后，再选涂其他答案，答案不能答在试卷上。
3.非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内的相应位置上；如需改动，先划掉原来的答案，然后再写上新的答案；不准使用铅笔和涂改液。
不按以上要求作答的答案无效。
4.作答选做题时，请先用2B 铅笔填涂选做题的题号对应的信息点，再作答。
漏涂、错涂：多涂的，答案无效。
5.考生必须保持答题卡的整洁。
考试结束盾，将试卷和答题卡一并交回。
一、选择题:本大题共8小题，每小题5分，满分40分．在每小题给出的四个选项中，只有一项是符合题目要求的． 1．已知()R b a i b iia ∈-=+,,2其中i 为虚数单位，则=+b a （ ） A.-1 B. 1 C. 2 D. 3 2．若}{n a 为等差数列，n S 是其前n 项的和，且π32211=S ，则=6tan a （ ） 3.A 3.-B 3.±C 33.-D 3．在下列四个函数中，满足性质：“对于区间(1，2)上的任意),(,2121x x x x ≠|||)()(|1221x x x f x f -<-恒成立”的只有( )xx f A 1)(.=||)(.x x f B = x x f C 2)(.= 2)(.x x f D = 4．设γβ、、a 为不同的三个平面，给出下列条件： ①b a 、为异面直线，;//,//,,αββαb a b a ⊂⊂α②内不共线的三点到β的距离相等； ;,γβγα⊥⊥③则其中能使βα//成立的条件是( )A.①B.②C.③ D ．②③5．已知函数)(x f 是R 上的偶函数，且在区间[0,+∞)上是增函数，令)72(sinπf a =，)75(cos πf b =，)75(tanπf c =，则 c a b A <<. a b c B <<. a c b C <<. c b a D <<.6．设二元一次不等式组⎪⎩⎪⎨⎧≤-+≥+-≥--0142,08,0192y x y x y x 所表示的平面区域为M,使函数)1,0(≠>=a a a y x的图象经过区域M 的a 的取值范围是]3,1.[A ]10,2.[B ]9,2.[C ]9,10.[D7．如图，一环形花坛分成A,B,C,D 四块，现有4种不同的花供选种，要求 在每块里种1种花，且相邻的2块种不同的花，则不同的种法总数为( ) A ．96 B ．84 C ．60 D ．488．如图，设点A 和B 为抛物线)0(42>=p px y 上除原点以外的两个动点，已知OA⊥OB，OM⊥AB，则点M 的轨迹方程为( )04.22=++px y x A 04.22=-+px y x B 04.22=++py y x C 04.22=-+py y x D二、填空题：本大题共7小题，考生作答6小题，每小题5分，满分30分． （一）必做题(9～13题) 9．=+⎰dx x ex)2(1_______10．已知平面向量b a ,，满足,2||,3||==b a a 与b 的夹角为060，若a b m a ⊥-)(则实数m 的值为_______11．若框图所给的程序运行结果为S=41，那么判断框中应填入的 关于i 的条件是________12．设}1|||||),{(≥+=y x y x M ，}0,|),{(222≥≤+=r r y x y x N 若Φ=/N M I 则，的最小值是_______13.已知数组:,14,23,32,41,13,22,31,12,21,11⎪⎭⎫ ⎝⎛⎪⎭⎫ ⎝⎛⎪⎭⎫ ⎝⎛⎪⎭⎫ ⎝⎛..，)1,21,,23,12,1(nn n n n ---Λ…记该数组为：Λ),,,(),,(),(654321a a a a a a ，则=2012a _______（二）选做题（请考生在以下两个小题中任选一题做答） 14．（几何证明选讲选做题）如右图，已知AB 是圆O 的直径，AB=4，C 为圆上任意一点，过C 点做圆的切线分别与过A ，B 两点的切线交于P ，Q 点，则CP ·CQ=_______ 15．（坐标系与参数方程选做题）已知曲线C 的参数方程为⎩⎨⎧=+=θθsin ,cos 2y x (θ为参数），则曲线上C 的点到直线0443=+-y x 的距离的最大值为_______三、解答题：本大题共6小题，满分80分．解答须写出文字说明、证明过程和演算步骤．16．（本小题满分12分）在△ABC 中，c b a ,,分别为内角A,B,C 所对的边，且满足.2cos 3sin =+A A (Ⅰ)求A 的大小；(Ⅱ)现给出三个条件；2=a ①，②4π=B ，b c 3=③试从中选出两个可以确定△ABC 的条件，写出你的选择并以此为依据求△ABC 的面积．（只需写出一个选定方案即可，选多种方案以第一种方案记分） 17．（本小题满分12分)2012年3月2日，国家环保部发布了新修订的《环境空气质量标准》，其中规定：居民区中的PM2.5年平均浓度不得超过35微克/立方米，PM2.5的24小时平均浓度不得超过75微克/立方米．某城市环保部门随机抽取了一居民区去年40天的PM2.5的24小时平均浓度的监测数据，数据统计如下：组别 PM2.5（微克/立方米）频数（天）频率 第一组 (0,15] 4 0.1 第二组 (15,30] 12 0.3 第三组 (30,45] 8 0.2 第四组 (45,60] 8 0.2 第五组 (60,75] 4 0.1 第六组(75,90)40.1(Ⅰ)写出该样本的众数和中位数（不必写出计算过程）；(Ⅱ)求该样本的平均数，并根据样本估计总体的思想，从PM2.5的年平均浓度考虑，判断该居民区的环境是否需要改进？说明理由;(Ⅲ)将频率视为概率，对于去年的某2天，记这2天中该居民区PM2.5的24小时平均浓度符合环境空气质量标准的天数为ξ，求ξ的分布列及数学期望Eξ．18.（本小题满分14分）如图，在五面体ABCDEF 中，DC AB //，2π=∠BAD ，2==AD CD ，四边形ABFE 为平行四边形，FA ⊥平面ABCD 7,3==ED FC ，求：(Ⅰ)直线AB 到平面EFCD 的距离；（Ⅱ）二面角F-AD —E 的平面角的正切值．19.（本小题满分14分）设椭圆中心在坐标原点，A(2，0)，B(0，1)是它的两个顶点，直线)0(>=k kx y 与AB 相交于点D ，与椭圆相交于E. F 两点． (Ⅰ)若DF ED 6=．求k 的值： (Ⅱ)求四边形AEBF 面积的最大值．20．（本小题满分14分）设不等式⎪⎩⎪⎨⎧+-≤>>n nx y y x 3,0,0所表示的平面区域记为n D ，并记n D 内的格点),(y x )(z y x ∈、的个数为⋅∈))((*N n n f(Ⅰ)求)3(),2(),1(f f f 的值及)(n f 的表达式； (Ⅱ)记()()nn n f n f T 21+=，若对于任意*N n ∈总有m T n ≤成立，求实数m 的取值范围； （Ⅲ）设n S 为数列}{n b 的前n 项和，其中)(2n f n b =．问是否存在正整数t n 、使16111<--++n n n n tb S tb S 成立？若存在，求出正整数n ，t;若不存在，请说明理由．21.（本小题满分14分）设函数N n nx f x∈+=()11()(，且),1R x n ∈> (Ⅰ)当x=6时，求xn)11(+的展开式中二项式系数最大的项; (Ⅱ)对任意的实数x ，证明)()((2)2()2(x f x f f x f '>+是)(x f 的导函数)：(Ⅲ)是否存在N a ∈，使得n a k an k nk )1()11(1+<+<∑=恒成立？若存在，试证明你的结论并求出a 的值；若不存在，请说明理由．参考答案一．选择题1．解：因为12+=+bi i a ，所以2,1==b a ，故,3=+b a 选D ， 2．解：()32112116611111π=⇒=+=a a a a S ，所以.3tan 6-=a 选B 3．解:若x x f 1)(=．则21122121|||11||)()(|x x x x x x x f x f -=-=-，因,21,2121<<<≤x x 得1141412121<<⇔<<x x x x ，故|||)()(|1221x x x f x f -<- 4．解：由①可推出;//βα由②推不出;//βα由③推不出βα//选A ．5．解:)72(cos )72cos ())72(cos(ππππf f f b =-=-= )72(tan )72tan ())72(tan(ππππf f f c =-=-=因为2724πππ<<，所以72tan172sin 72cos 0πππ<<<<，所以,c a b <<选A ． 6.解:通过画图知，平面区域M 是以三点A(1，9)、B(2，-10)、C(3，8)为顶点的三角形边界及其内部，函数xa y =的图象分别过A(1，9)、C （3，8)时，求得.9=a 或.2=a 依条件知，其他函数的图象夹在x y 2=与x y 9=之间，故,92≤≤a 选C.7．解：分三类；种两种花有24A 种种法；种三种花有342A 种种法；种四种花有44A 种种法，共有842443424=++A A A 选B ．另解：按A-B-C-D 顺序种花，可分A 、 C 同色与不同色有84)2231(34=⨯+⨯⨯⨯，选B. 8．解:设),(),,(),,(2211y x M y x B y x A ，AB 与x 轴交于N （m,0）设直线AB 的方程为m ky x += 代入px y 42=，得.0442=--pm pky y,421pm y y -=∴2211x y x y k k OBOA ⋅=⋅∴2122222111644y y p py y p y y =⋅=14-=-=m p p m 4=∴,即直线AB 过定点)0,4(p N ，又,AB OM ⊥,.MN OM ⊥∴又),(y x OM =Θ，),4(y p x NM -=0)4(2=+-∴y p x x ，故所求的轨迹方程为.0422=-+px y x 选B ． 二，填空题 9．解:e 1-1)(e |)()2(1021=+=+=+⎰x e dx x e x x10．解：因为a b m a ⊥-)(，所以060cos 69||)(0.2=-=⋅-=⋅-m b a m a a b m a ，解得.3=m 11．解：?6≤i ．即4116117421=+++++=S12.解：集合M 是以四点A(1，0)．B(0，1)，C(-1，0)，D(0，-1）为顶点的正方形外部的点组成的区域（包括正方形的边界），而集合N 是以原点为圆心，1为半径的圆内的点组成的区域（包括边界）．若Φ=/N M I ，当圆222r y x =+与正方形ABCD 四边相切时r 最小，可求得最小值是2213．答案:460(也可表示成15)。
mxt-高三年级模拟考试(三模)(英语)
广雅中学高三英语综合测试英语Ⅰ．语言知识及应用（共两节，满分45分）第一节完形填空（共15小题；每小题2分，满分30分）阅读下面短文，掌握其大意，然后从1-15各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
The pursuit of lasting happiness has long been a subject of interest for scientists and surveys alike. But what makes us really happy and what lasting benefits does happiness have?Well, earlier this month, 1 from the University of Illinois found the people who are happy and 2 about life live longer. The researchers found "clear and compelling evidence" that happiness is key when it comes to better health and 3 life spans.Last month a British study, which tracked members of 40,000 4 across the country, concluded that eating a family meal at least three times a week is the key to happiness because it helps build a/an 5 bond between parents and their children.But happiness might be 6 when you are born. Names can apparently predict how happy we are as individuals, with researchers at Manchester Metropolitan University claiming in 2011 that people called Judy and Joshua 7 life the most Ben, Andrew and Edward were seen as 8 names on the other hand.Married couples are most 9 to be happy with their 10 , according to the study, which also found that the happiest relationships are those less than five years old between two university graduates who have no children.Research has also suggested that happiness begins at 50. A study from Stony Brook University, New York, found that stress, anger and 11 fade after your 50th. Women were also reported to 12 greater stress, worry and sadness at all ages.Money makes the world go round, but it is not the key to happiness, according to other studies. In 2010, a survey from the office for National Statistics found that British families were healthier and twice as well off as they were 20 years ago, but are no happier.However, other studies have found money can buy you happiness after all, but only if you 13 . it wisely.14 , that might be why a good holiday can 15 your happiness levels "for up to two months" after-although the break has to be "very relaxing" to have such an effect.1 wyers B.teachers C.scientists D.accountants2 A.positive B.negative C.pessimistic D.doubtful3 A.shorter B.quicker C.longer D. slower4 A.schools panies C.churches D.families5 A.strong B.healthy C.friendly D.interesting6 A.created B.decided C.invented D.made7 A.enjoy B.hate plain D.question8 A.popular B.unpopular mon D.miserable9 A.likely B.unlikely C.lucky D.possible10 A.career B.health C.income D.relationships11 A.tiredness B.pain C.worry D.illness12 A.enjoy B.suffer C.prefer D.get13 A.spend B.cost C.take D.save14 A.Actually B.Fortunately C.Consequently D.Accidentally15 A.change B.Prove C.improve D.reduce第二节语法填空（共10小题；每小题1.5分，满分15分）阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答卷标号为16-25的相应位置上。
高三英语第三次高考模拟考试 (2)
位敦市安定阳光实验学校高三三模试卷英语第Ⅰ卷（三，共115分）第一：听力（共两节，满分30分）第一节(共5小题，每小题1.5分，满分7.5分)听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. How much will the man pay for the tickets?A.￡7.5.B.￡15.C.￡50.2. Which is the right gate for the man's flight?A. Gate 16.B. Gate 22.C. Gate 25.3. How does the man feel about going to school by bike?A. Happy.B. Tired.C. Worried.4. When can the woman get the computers?A. On Tuesday.B. On Wednesday.C. On Thursday.5. What does the woman think of the shirt for the party?A. The size is not large enough.B. The material is not good.C. The color is not suitable.第二节(共15小题，每小题1.5分；满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相位置。
听每段对话或独白前，你有时间阅读各小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间；每段对话或独白读两遍。
听第6段材料，回答第6、7题。
6. What can we learn about Mr. Brown?A. He is in his office.B. He is at a meeting.C. He is out for a meal.7. What will the man probably do next?A. Call back.B. Come again.C. Leave a message.听第7段材料，回答第8、9题。
2021年明德天心中学高三英语三模试卷及答案
2021年明德天心中学高三英语三模试卷及答案第一部分阅读（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A、B、C、D四个选项中选出最佳选项ANational Disability Insurance Scheme (方案)The National Disability Insurance Scheme (NDIS) will transform the way Queenslanders with disability are supported and change the way disability services are funded and delivered.Under the scheme, Queenslanders with disability will have choice and control over how they access support and who delivers them. They will also have certainty that they will be supported throughout their lifetime to achieve their personal goals.The NDIS will have an effect on the following programs.School Transport Assistance Program for Students with DisabilityThe NDIS will not disrupt existing services for qualified students. The Queensland Government will also continue to provide school transport assistance for students with disability who are not qualified to receive funding via the NDIS.For more information about the School Transport Assistance Program, and to check your qualification, visit the Education and Training website.Taxi Subsidy (补助金) SchemeThe Queensland Governmenthas lengthened the Taxi Subsidy Scheme (TSS) membership for NDIS qualified members to 31 October, 2022. This will allow more time to solve transport support arrangements under the Commonwealth’s NDIS.You can find more information about the TSS and your qualification on the TransLink website.Disability Parking Permit SchemeNo changes will be made to the Disability parking permit scheme when the NDIS is introduced inQueensland. Current arrangements for this scheme will be maintained.You can find more information on this scheme, and check your qualification, on the Queensland Government website.Public Transport Concessions for People with DisabilityThere will be no change to concessions on public transport for people with disability when the NDIS isintroduced inQueensland. TransLink will continue to ensure concessions are provided for disabled persons travelling on public transport inQueenslandwhen the NDIS is introduced.You can find more information about public transport discounts for people with disability, and check your qualification, on the TransLink website,1.Which program helps drive the disabled to and from school?A.Taxi Subsidy Scheme.B.Disability Parking Permit Scheme.C.Public Transport Concessions for People with Disability.D.School Transport Assistance Program for Students with Disability.2.What can we learn about Taxi Subsidy Scheme?A.The scheme is for parking permit.B.The existing membership can be effective for longer time.C.There is no change to current arrangements for the scheme.D.The NDIS will not break off existing services for qualified students.3.What do the four programs have in common?A.They are all related to transport.B.They are all largely affected by NDIS.C.They all can be checked on the same website.D.They all provide discounts for disabled persons.BA Virginia teen is doing his part to make sure frontline health care workers are getting the meals they need to help them take care of themselves and others.Arul Nigam, 17, of Tyson's Corner, Va. , has had to make several adjustments since his school year ended abruptly in mid-March due to the coronavirus pandemic(新冠疫情).“We didn'thave any classes for like over a month and then after that there were a lot of technical difficulties. So I started to have a lot more free time,” he tells Yahoo Life. “It was really saddening, but it was also something that really surprised me, that our health care workers are facing something like that,” Nigam says. “So I wanted to see what I could do to help them because obviously, they're sacrificing so much and giving so much for all of us. ”In late March, the teen started fundraising efforts with the help of friends and family to help these health care workers receive much-needed meals. He also began doing research about what hospitals had the mostamount of coronavirus cases, so he could prioritize those places first. He was also arranging for the orders to be fulfilled at local family-owned restaurants impacted by shutdown orders. So far, Nigam has delivered over 1,000 meals to 22 hospitals in 13 states, including New York, Massachusetts and Maryland.Nigam's efforts have not only helped health care workers, but restaurants as well. With quarantine restrictionstaking a toll onthe food industry, places like Best Coast Burrito in Oakland, Calif. , have lost business over the last few weeks. Best Coast's owner,Alvin Shen, tells Yahoo Life that being able to partner with Arul and others in efforts to feed those on the frontline has been a big help.4. What would Nigam probably do according to his words?A. Study at home by himself.B. Spend the more free time playing.C. Donate some money to health care workers.D. Do something helpful for health care workers.5. What is Nigam's priority when delivering food?A. The urgency of meals.B. The severity of the virus.C. The number of doctors.D. The position of hospitals.6. What does the phrase “taking a toll on” in the last paragraph mean?A. Turning a blind eye to.B. Keeping an eye on.C Causing lots of damage to.D. Answering completely for.7. Where can you probably read this text?A. Science fiction.B. Fashion magazine.C. Life magazine.D. Entertainment newspaper.CWhere do you find beauty? Fashion Magazines? Music Videos? One American photographer is finding beauty in unexpected places. And a new documentary about his work might help change the traditional standards of “who”is beautiful.Rick Guidotti put aside his career as a fashion photographer to turn his lens to people living with genetic, physical and behavioral differences. He says what changed his perception of beauty was a chance encounter with an albino （白化病）girl.“I was just tired of people telling me who was beautiful. Every season that face would change but I was always told who was beautiful. As an artist, I don't see beauty just on covers of magazines. I see it everywhere. So it was my initial intention that opened my eyes a little wider and wider.” Said Guidotti.Guidotti has created Positive Exposure, a not-for-profit organization that uses photography and video to transform public views and promote a world where differences are celebrated. Guidotti and Positive Exposure are featured in a new documentary called On Beauty.The cast and crew recently hosted a screening at Georgetown University in Washington. One of the women featured in the film is Jayne Waithera. “I never thought I was beautiful because nobody said that to me, but meeting him was my profound moment. I remember that particular day he took my picture and I felt so good like I felt there's somebody who, really loves me and sees me for who I am and who sees me more than my condition.” said Waithera.The documentary is the idea of producer Joanna Rudnick. After seeing Guidotti's photos, she decided to tell his story. Joanna and Guidotti are traveling from city to city to promote On Beauty. “As I travel from community to community, I'm taking photographs and I'm encouraging individuals with a positive sense of who they are. They're seeing beauty in their reflection but I'm also encouraging their families and they in turn are encouraging their communities as well. All is based on the philosophy of change how you see,see how you change.”8. What made Rick change his understanding of beauty?A. A girl diagnosed with albino.B. His job as a fashion photographer.C. The beauty on the covers of magazines.D. Influence from the people working with him.9. What can we infer about Jayne Waithera?A. She showed great interest in taking photos.B. She used to be disappointed at her work and life.C. She was greatly influenced by the experience with Rick.D. She believed Rick was the best photographer in the world.10. Which of the following words can best describe On Beauty?A. abstract and differentB. traditional and academicC. tolerant and encouragingD. creative and interesting11. What's the best title of the text?A. True Beauty In The Eye Of A PhotographerB. Beautiful Or Not Beautiful,That's A QuestionC. Be Who You Are Not Who You Want To BeD. A Different photographer, A Different MagazineDWhen John was growing up, other kids felt sorry for him. His parents always had him weeding the garden, carrying out the garbage and delivering newspapers. But when John reached adulthood，he wasbetter off than his childhood playmates. He had more job satisfaction, a better marriage and was healthier. Most of all, he was happier. Far happier.These are the findings of a 40-year study that followed the lives of 456 teenage boys fromBoston. The study showed that those who had worked as boys enjoyed happier and more productive lives than those who had not. “Boys who worked in the home or community gained competence（能力）and came to feel they were worthwhile members of society, ” said George Vaillant, the psychologist（心理学家）who made the discovery. “And because they felt good about themselves, others felt good about them.”Vaillant’s study followed these males in great detail. Interviews were repeated at ages 25, 31and 47. Under Vaillant, the researchers compared the men’s mental-health scores with their boyhood-activity scores. Points were awarded for part-time jobs, housework, effort in school, and ability to deal with problems.The link between what the men had done as boys and how they turned out as adults was surprisingly sharp. Those who had done the most boyhood activities were twice as likely to have warm relations with a wide variety of people, five times as likely to be well paid and 16 times less likely to have been unemployed. The researchers also found that IQ and family social and economic class made no real difference in how the boys turned out.Working—at any age—is important. Childhood activities help a child develop responsibility, independence, confidence and competence—the underpinnings（基础）of emotional health. They also help him understand that people must cooperate and work toward common goals. The most competent adults are those who know how to do this. Yet work isn't everything. As Tolstoy once said, “One can live magnificently in this world if one knows how to work and how to love, to work for the person one loves and to love one's work.”12. What do we know about John？A. He received little love from his family.B. He had few childhood playmates.C. He enjoyed his career and marriage.D. He was envied by others in his childhood.13. Vaillant’s words in Paragraph 2 serve as _______.A. a description of personal values and social valuesB. an analysis of how work was related to competenceC. an example for parents' expectations of their childrenD. an explanation why some boys grew into happy men14. Vaillant's team got their findings by _______.A. recording the boys' effort in schoolB. comparing different sets of scoresC. evaluating the men's mental healthD. measuring the men's problem solving ability15. What can be inferred from the last paragraph?A. Competent adults know more about love than work.B. Emotional health is essential to a wonderful adult life.C. Love brings more joy to people than work does.D.Independenceis the key to one's success.第二节（共5小题；每小题2分，满分10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。
2019-2020学年明德天心中学高三英语三模试题及参考答案
2019-2020学年明德天心中学高三英语三模试题及参考答案第一部分阅读（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A、B、C、D四个选项中选出最佳选项APlan Your Visit to the British MuseumWe've made a few changes to ensure you can safely enjoy your visit:How to book tickets·Tickets for the permanent collection can only be hooked online in advance.·To book tickets for exhibitions, visit our exhibition pages. If you want to guarantee your visit to the permanent collection as well as the exhibition on your visit, you will need to book a separate ticket.·We are limiting numbers of people in the museum to ensure there is room for you to safely enjoy your visit. Everyone, including members and volunteers, will therefore need to book a free, timed ticket in advance.Important information about your ticket booking·You can book up to six tickets for people who live in the same family.·We will email yourticket to you, and you will need to show it either printed out or on your device (设备) when you arrive.·Please arrive at the time stated on your ticket-we cannot guarantee admission before or after it.Following the routeWe have created a new one-way route through the museum which will allow you to safely explore world cultures from the Mediterranean to the Middle East and from the Americas to Africa.·View a map of the route (Open in a new window).·Our audio guides (音频指南) are not available. However, youcan pay to download the audio introductions from iTunes (Open in a new window) or Google Play (Open in a new window) to each of the galleries and listen on your own device. Please remember to bring along your own headphones.1.Why does the museum offer timed tickets?A.To earn more money.B.To hire more volunteers.C.To save room for collections.D.To control the number of visitors.2.How can a visitor learn about the new route in advance?A.View an online map.B.Buy a new headphone.C.Buy audio guides from the museum.D.Download video introductions from iTunes.3.Where can you probably find the text?A.In a newspaper.B.In a magazine.C.On a website.D.In a report.BHappiness is not a warm phone, according to anew study exploring the link between young life satisfaction and screen time. The study was led by professor of psychology Jean M. Twenge at San Diego State University (SDSU).To research this link, Twenge, along with colleagues Gabrielle Martin at SDSU and W. Keith Campbell at the University of Georgia, dealt with data from the Monitoring the Future (MtF) study, a nationally representative survey of more than a million U. S. 8th-, 10th-, and 12th-graders. The survey asked students questions about how often they spent time on their Phones, tablets and computers, as well as questions about their face-to-face social interactions and their overall happiness.On average found that teens who spent more time in front of screen devices — playing computer games, using social media, texting and video chatting — were less happy than those who invested more time in non-screen activities like sports, reading newspapers and magazines, and face-to-face social interactions."The key to digital media use and happiness is limited use," Twenge said. "Aim to spend no more than two hours a day on digital media, and try to increase the amount of time you spend seeing friends face-to-face and exercising — two activities reliably linked to greater happiness."Looking at historical trends from the same age groups since the 1990s, it's easy to find that the increase of screen devices over time happened at the same time as a general drop-off in reported happiness inU. S.teens. Specifically, young peopled life satisfaction and happiness declined sharply after 2012. That's the year when the percentage of Americans who owned a smartphone rose above 50 percent. By far the largest change in teens' lives between 2012 and 2016 was the increase in the amount of time they spent on digital media, and the following decline in in-person social activities and sleep.4. Which method did Twenge's team use for the study?A. Calculating students' happiness.B. Asking students certain questions.C. Analyzing data from a survey.D. Doing experiments on screen time.5. How does the author develop the finding of the study in paragraph 3?A. By making a comparison.B. By giving an example.C. By making an argument.D. By introducing a concept.6. What is the purpose of the last paragraph?A. To draw a conclusion from the study.B. To offer some advice to the readers.C. To prove social activities' importance.D. To support the researchers' finding.7. Which of the following can be the best title for the text?A. Quitting Phones Equals HappinessB. Screen Time Should Be BannedC. Teens' Lives Have Changed SharplyD. Screen-addicted Teens Are UnhappierCOur house was across the street from a big hospital so we rented our spare upstairs room to outpatients (门诊病人). One evening, there was a knock at the door. I opened it to see a truly sick-looking man.His face looked terrible — it was swollen and red. Yet his voice was pleasant. He told me that he came for treatment and that he’d been hunting for a spare room since noon, but no one would give him one. “I guess it’s my face...”For a moment, I hesitated, but his next words convinced me: “I will sleep in this rocking chair on the porch. My bus leaves early in the morning.”The old man had a huge heart inside his tiny body. He told me that he fished for a living to support his daughter, his daughter’s five children and her disabled husband.He didn’t complain while telling me his story. He was grateful that no pain accompanied his disease, which was seemingly a form of skin cancer.The next morning, he said, “Can I come back and stay next time I need treatment?” I told him he was welcome to come again.On his next trip, as a gift, he brought a big fish and some large oysters (牡蛎). In the years that he stayed withus, there was never a time that he did not bring us gifts like these.My neighbour warned me that I could lose potential renters after the old man left.Maybe we did lose renters once or twice. But if they had known him, perhaps their illnesses would have been easier to bear. I know our family will always be grateful to have known him. From him, we learned what it was to accept the bad without complaint and the good with gratitude.8. Why did the author let the old man stay after hesitation?A. The old man looks terrible and frightening.B. The old man is pitifully undemanding.C. The old man could’t rent room from others.D. The old man talked happily with the author.9. Which of the following shows the old man had a big heart?A.He had a large family to raise.B. He could sleep in a rocking chair.C. He did’t care about his disease.D. He wanted to come back and stay the next time.10. What can we learn about the author from the last two paragraphs?A. He was grateful for the neighbour’s warning.B. He and his neighbor are good friends.C. He truly appreciated the old man.D. He lost potential renters happily.11. What can be a suitable title for the text ?A. Kindness makes the world beautiful.B. Happiness is around thecorner.C. No pains, No gains.D. Live positively.DBeing an Olympian (奥运会选手) demands focus, determination, and a competitive spirit. Plus, representing your country is a lot of pressure. However, two athletes recently showed the world another quality that is definitely worth championing.Qatar's Mutaz Essa Barshim and Italy's Gianmarco Tamberi were competing in the high jump on Sunday when they reached a stalemate (僵局). Both men had managed to jump over a surprising 2.37 meters with no faults along the way. However, after three attempts neither managed the next level of 2.39 meters.An Olympic official suggested ajump-offbetween the two friends and rivals (竞争对手) to determine who would get the gold medal. But Barshim had another plan to reward their efforts.“Can we have two golds?” he asked the official.The official agreed and the two men jumped for joy. This was the first time a gold medal had been shared since 1912. “He is one of my best friends, not only on the track, but outside the track. We work together. This is a dream come true.” shared Barshim.The decision to share the medal was particularly meaningful to Tamberi. The Italian had suffered an ankle injury that prevented him from competing in the Rio Olympics in 2016, and it nearly put an end to his career altogether. So this year he brought along his cast to this year's Olympics with “Road to Tokyo 2021” to inspire him along the way.For Barshim, the gold has topped off his already impressive medal collection, having received a bronze and a silver medal in 2012 and 2016 respectively.Despite all the glory of receiving a gold medal for their countries, their achievement means so much more. These two individuals, trying to do their very best for their countries, have provided a wonderful example to all those competing in sports. They've summed up exactly what it means to take part in a global event with a generous and compassionate (有同情心的) spirit.12. What happened to Barshim and Tamberi in the competition?A. They ended in a tie.B. They quit the competition.C. They set a new record.D. They ran out of strength.13. What does the underlined word “jump-off” in Paragraph 3 refer to?A. Debate.B. Vote.C. Celebration.D. Extra round.14. Why was the gold medal particularly meaningful to Tamberi?A. It could bring him a lot of money.B. It may make up for his regret in 2016.C. It was a glory for his country.D. It could complete his medal collection.15. What does the author mainly want to convey in the text?A. The importance of sharing.B. The glory of winning gold medals.C. The valuable and special team spirit.D. The considerate and sharing Olympic spirit.第二节（共5小题；每小题2分，满分10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。
2020-2021学年明德天心中学高三英语三模试卷及答案
2020-2021学年明德天心中学高三英语三模试卷及答案第一部分阅读（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A、B、C、D四个选项中选出最佳选项AMust-see MusicalsReady to get back to the theater and enjoy some toe-tapping show tunes? Whether you're a Londoner or just visiting the capital for a day, you're sure to find a good night out from our selection of must-see musicals. Book your ticketsin advance to catch the hottest shows!●TINA- The Tina Turner MusicalFrom humble beginnings in Nutbush, Tennessee, to her transformation into global Queen of Rock n' Roll, Tina Turner didn't just break the rules, she rewrote them. This new stage musicalreveals the story of a woman who dared to defy the bounds of her age, gender and race. TINA—The Tina Turner Musical is written by Oliver Award-winning playwright Katori Hall and directed by Phyllida Lloyd.Performance times: Monday 7 pm; From June 3, 2021 until June 26, 2022Venue: Aldwych Theater, 49 Aldwych, London, WC2B 4DF●The Lion KingTaking the famous story of Simba and his ascension to king, the stage show is a one-way ticket to Pride Lands. With fascinating scenery drawing you in, you'll almost feel like you're part of the action as you journey through Simba's world. To bring The Lion King to life, the show's original director, Julie Taymor, combined live performers and creative props. Creating a visual feast that's since redefined how musicals could and should look, The Lion King really is an all singing, all-dancing affair.Performance times: Tuesday—Saturday 7: 30 pm; From June 1, 2021 until April 3, 2022Venue: Lyceuwm Theater, 21 Wellington Street, London WC2E 7RQ●The Prince of EgyptJourney through the wonders of Ancient Egypt as two young men, raised together as brothers in a kingdom of privilege, find themselves suddenly divided by a secret past. One must rule as Pharaoh, but the other must rise up and free histrue people; both face a destiny that will change history forever.With a huge cast and orchestra of almost 60 artists, this “truly phenomenal production” is based on the classic Dream Works Animation film and features the international best-selling, Academy Award-winning songWhen You Believe.Performance times: Monday—Saturday 7: 30 pm; From July 1, 2021 until January 8, 2022Venue: Dominion Theater, 268—269 Tottenham Court Rd, Fitzrovia, London W1T 7AQ1. Who is the author of TINA—The Tina Turner Musical?A. Oliver Award.B. Katori Hall.C. Phyllida Lloyd.D. Tina Turner.2. What is special for The Lion King?A. It is written by a famous director.B. It reveals a conflict between two brothers.C. It offers a lifelike feast for eyes.D. It shows the importance of protecting lions.3. If you prefer the songWhen You Believe, which theater should you go to?A. Dominion Theater.B. Lyceuwm Theater.C. Aldwych Theater.D. Egypt Theater.BWolves have a certain undeserved reputation: fierce, dangerous, good forhunting down deer and farmers’ livestock. However, wolves have a softer, more social side, one that has been embraced by a heart-warming new initiative.In a bid to save some of Europe’s last wolves, scientists have explored the willingness of these supposedly fierce creatures to help others of their kind. Female wolves, the scientists have discovered, make excellent foster parents to wolf cubs that are not their own. The study, published in Zoo Biology, suggests that captive-bred wolfcubs(幼兽)could be placed with wild wolf families, boosting the wild population.The gray wolf was once the world’s most widely distributed mammal, but it became extinct as a result of widespread habitat destruction and the deliberate killing of wolves suspectedof preying on livestock. Fear and hatred of the wolf have since become culturally rooted, fuelled by myths, fables and stories.In Scandinavia, the gray wolf is endangered, the remaining population found by just five animals. As a result, European wolves are severely inbred and have little geneticvariability（变异性）, making them vulnerable to threats, such as outbreaks of disease that they can’t adapt to quickly. So Inger Scharis and Mats Amundin of Linkoping University, in Sweden, started Europe’s first gray wolf-fostering program. They worked with wolves keptat seven zoos across Scandinavia. Eight wolf cubs between four and six days old were removed from their natural parents and placed with other wolf packs in other zoos. The foster mothers accepted the new cubs placed in their midst.The welfare of the foster cubs and the wolves’ natural behavior were monitored using a system ofsurveillance cameras. The foster cubs had a similar growth rate as their step siblings in the recipient litter, as well as their biological siblings in the source litter. The foster cubs had a better overall survival rate, with 73% surviving until 33 weeks, than their biological siblings left behind, of which 63% survived. That rate of survival is similar to that seen in wild wolf cubs. Scientists believe that wolves can recognize their young, but this study suggests they can only do so once cubs are somewhere between three to seven weeks of age.If captive-bred cubs can be placed with wild-living families, which already have cubs of a similar age, not only will they have a good chance of survival, but they could help dramatically increase the diversity of the wild population, say the researchers. Just like the wild wolves they would join, these foster cubs would need protection from hunting. Their arrival could help preserve the future of one of nature’s most iconic and polarizing animals.4. What’s the theme of the passage?A. Giving wolf cubs a new lifeB. Foster wolf parents and foster cubsC. The fate of wild wolvesD. Changing diversity of wild wolves5. Which of the following flow chart best demonstrates the relationship between the wolves?A. B.C. D.6. Which of the following statements is true?A. Female wolves are willing to raise wolf cubs of 3 to 7 weeks old.B. Foster cubs are accepted by foster parents and are well bred.C. Man’s hostile attitude towards wolves roots in myths, fables and stories.D. Foster cubs and their biological siblings have similar growth rate and survival rate.7. What’s the purpose of the research?A. To help wolves survive various threatsB. To improve wolves’ habitat and stop deliberate killingC. To save endangered wolves by increasing their populationD. To raise man’s awareness of protecting wolvesCThe idea of growing food in a desert would make most people laugh but this is quickly becoming a reality. There are currently two desert farms in the world where quality vegetables are being planted cheaply and easily.Sundrop Farms, based in South Australia, uses experimental greenhouses to grow tomatoes, peppers and cucumbers. The biggest challenge of growing food in a desert, obviously, is the lack of available water. The researchers at Sundrop Farms have gotten aroundthis problemby using the sun to desalinate (淡化) sea water. It can also be used to control the temperature of the greenhouses.Without depending on limited resources such as land and fresh water Sundrop Farms has made farming a practice. This can increase the world’s food supplies. Another benefit ofthis kind of farming is that it can be done anywhere, thus reducing the costs of transporting food to distant locations. Yet another benefit is that it reduces the need for pesticides (杀虫剂).Another experimental desert farm is the Sahara Forest Project, which began in Qatar in December 2012. Greenhouses in the farm are cooled by saltwater. Solar power and other technologies are used together to help make vegetation (植被) grow in the desert environment. As deserts have expanded over recent years around the world due to global warming, this project could solve the problem.The result form the Qatar project were better than expected and in June of 2014, Jordan agreed to host another one. This will be much bigger than the Qatar project and the project members will have even more opportunities to test their experiments on a much larger scale. It is not clear yet that desert farming resents the future of farming but these projects have shown some success in the field.8. What does “this problem” in paragraph 2 refer to?A. Sea water is bard to purify.B. The desert is short of water.C. The temperature is high in the desert.D. Desert farms aren’t fit to plant vegetables.9. What is one of the characters of desert farming?A. It needs more pesticides.B. It saves delivery costs.C. It has a location limit.D. It solves food waste problems10. What can we know about the Sabara Forest Project?A. It lives up to expectationsB. It can help produce more foodC. It is started to prevent global warmingD. It uses technology to produce saltwater11. What can be inferred about desert farming from the last paragraph?A. It still has problems to solve.B. It represents the future of farming.C. Its early success has aroused interest in it.D. Its aim is to create more job opportunities.DIf you have ever been disappointed because you don’t have a good gardener ,the clever robot may one day become the helper of your indoor plantsThe Hexa Plant is a six-legged robot that has been specially made to care for the potted plant that carries on top of its head .Using light and heats sensors (传感器) the robot has the ability to carry its plant in and out the daylight .If the houseplant needs more sun，the Hexa will walk into the sunlight ;and if the houseplant is getting too hot , the Hexa will go back into the area that blocks direct light The Hexa Plant will even do a little dance when it senses that the plant needs to be watered to warn its owner .The robot was developed by Vincross engineer and founder Sun Tianqi after he saw a dead sunflower sitting in the darkness in a room back in 2014 .” Plants only receive an action without responding ,”SunTianqi wrote in a blog post .” Whether they are being cut ,bitten ,burned or pulled from the earth ,or when they haven’t received enough sunshine ,water ,or are too hot or cold ,they will hold still and take whatever is happening to them .According to Sun Tianqi ,for billions of years ,plants have never experienced movement of any kind ,not even the simplest movement .In their whole lives ,they stick to where they were born .Sun Tianqi continued ,” Do they want break their own settings or have a tendency towards this ?I do not know the answer ,but would love to try to share some of this human tendency and technology with plants With the help of the robot ,plants can experience the move”.The Hexa Plant model robots are not for sale ,though Vincross does sell a Hexa robot model .It is said that in the near future the robots can open up a new market to watch over our household plants12. What can we learn about the Hexa Plant?A. It helps people do some gardening .B. It waters the plants through dancingC. It helps indoor plants get proper sunlightD. It carries the potted plant with its hands13. What does the author try to show through Paragraph 3?A. The way plants spend their whole livesB. The common way people deal with plantsC. The difference between plants and humansD. The cause of making the indoor plants’ helper.14. What does Sun Tianqi try do using this technology?A. To develop gardening skills.B. To draw people’s attention plantsC. make plants experience moveD. study the living conditions of plants15. What can be the best title for the text?A. A New Market for robotsB. An Indoor Plants’ HelperC. An Important Development in GardeningD The Tendency of Gardening in the Future第二节（共5小题；每小题2分，满分10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。
mxt-(语文)华南师大附中高三考前热身(三模)
华南师大附中高三考前热身语文本试卷共8页，24小题，满分150分。
考试用时150分钟．注意事项：1．答题前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、座位号填写在答题卷的相应位置上，并用2B铅笔将答题卷上考生号对应的信息点涂黑。
2．选择题选出答案后，请用2B铅笔将答题卷上对应的答案信息点涂黑：非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卷各题目指定区域内相应位置上。
一、本大题4小题，每题3分，共12分。
1．下列词语中加点的字，每对读音都不相同的一组是A．镌．刻/隽．永讣．告／阜．盛躯壳．／脑壳．B．付梓．／渣滓．跻．身／侪．辈屏．除／屏．息C．木讷．／按捺．濒．临／嫔．妃渐．染／渐．次D．罪愆．／悭．吝箴．言／甄．别禁．忌／禁．受2.下面语段中画线的词语，使用不正确的一项是“诗圣”杜甫在去世一千多年后的今天突然变得很忙。
很火．借助网络的推波助澜，杜甫很忙：一会是送水工、肌肉男，一会是火影忍者、高达战士……各种搞怪造型不一而足。
年轻人“恶搞”杜甫画像，拿名人大家开涮，这种穿凿附会的做法不得不令人担心，随意拿文化名人消遣娱乐，久而久之，会失了分寸，辱没传统。
A.推波助澜B.不一而足 C．开涮 D.穿凿附会3．下列句子中，没有语病的一项是A．“虎妈”、“狼爸”引发了人们对家庭教育的思考。
对孩子爱一点还是严一点，是穷养还是富养，不同的家庭不约而同地给出了肯定的回答。
B．2012年伦敦夏季奥运会的吉祥物是精灵文洛克，它以英格兰的萨罗普羊为原型，造型活泼而且富有动感，设计充满了想象力。
C．针对广大百姓关注的住房问题，温家宝总理在报告中指出，要坚决遏制部分城市房价过快上涨势头，满足人民群众的基本住房。
D．研究人员最近发现了《册封琉球国记略》原件，是钓鱼岛自古用于中国的最新明确证据，公布以来，在海内外影响巨大。
4.把下列句子组成语意连贯的一段文字，衔接最恰当的一组是①人们把自身发展过程中所积累的各类重大发明，以及对各种自然、社会障碍的克服，都加在一个个神话英雄身上，并把他们看作是本部族的理想的象征，②这些神话的主人公通常是人的形象，他们都有着神异的经历或本领，他们的业绩在于创造和征服，如燧人氏、有巢氏、神农氏、仓颉、后稷等．③它标志着人类自身的主体性突出了，这是社会进步的结果，历史上相继出现了大量有关文化英雄的神话．④黄帝之前，神话中有着大量的自然神。
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华南师大附中高三考前热身理科综合本试卷共12页，36小题，满分300分．考试用时150分钟。
注意事项：1．答卷前，请务必用黑色字迹的钢笔或签字笔将自己的班级、姓名和考号填写在答题卡和答卷上．2．选择题在选出答案后，用2B铅笔把答题卡上对应题目选项的答案涂黑，如需改动，用橡皮擦干净后，再选涂其他答案，答案不能答在试卷上。
3．非选择题必须用黑色字迹钢笔或签字笔作答，答案必须写在答卷各题目指定区域内相应位置上；如需改动，先划掉原来的答案．再写上新答案；不准使用铅笔和涂改液．不按要求作答的答案无效。
可能用到的相对原子质量：H-1．C-12 O-16 Na-23一、单项选择题：本大题共16小题，每小题4分，共64分。
在每小题给出的四个选项中，只有一个选项符合题目要求，选对的得4分，选错或不答的得0分；1．蛋白质与DNA是细胞内重要的化合物，以下描述正确的是A．合成的场所均含有磷脂分子B．均参与叶绿体、线粒体、核糖体等细胞器的活动C．DNA通过复制、转录、翻译来控制蛋白质的合成D．只有蛋白质和DNA也可构成生物2．下列有关细胞生命历程的叙述，正确的是A．细胞凋亡对于维持人体内部环境的稳定有重要作用B．胡萝卜叶肉细胞脱分化形成愈伤组织后不具全能性C．有丝分裂过程中，细胞不会发生染色体数目的改变D．减数分裂过程中，细胞中的遗传物质平均分配至子细胞3．PM2.5是指大气中直径小于或等于2.5微米的颗粒物，富含大量的有毒、有害物质，很容易入人肺进入血液。
PM2.5今年成为广东空气污染指数重要标准．下列推测不合理的是A．颗粒物如有硅尘入肺可能会破坏吞噬细胞的溶酶体膜，释放水解酶破坏细胞结构B．过敏病人在PM2.5超标的空气中会发病，是因为该颗粒中有相关的过敏原C．PM2.5含量升高主要是人类活动的影响D．PM2.5的颗粒中的一些酸性物质进入人体血液会导致其pH成酸性4．小宁和小静为同卵双胞胎，下列说法不正确的是A．自然条件下同卵双胞胳和人工胚胎分割技术产生的结果类似B. 小宁患某种常染色体显性遗传病，小静正常，则可能是小宁胚胎发生了基因突变C．小宁和小静在表现型上的差异主要是由基用重组导致的．D．若二人母亲为伴X显性遗传病患者，在其怀孕期间最好对胎儿进行基因检测5．小李在野外被蛇咬伤，下列说法正确的是A．见到蛇时身体紧张发热，主要是甲状腺激素起作用B.见到蛇后躲避属于条件反射C．小李整个反应过程涉及的神经中枢为大脑皮层D．倘若是毒蛇，则需要立刻注射相应蛇毒疫苗6．下列生物技术或方法中，不．正确的是A．果酒、腐乳制作过程中利用的都是分泌到细胞外的胞外酶B. 制备固定化酶的方法主要有包埋法，交联法和吸附法C．研究光合作用过程中碳元素的传递，可采用14C标记示踪D．荧光染料标记小鼠细胞表面的蛋白质研究细胞膜的流动性7．下列说法正确的是A．1 mol葡萄糖水解能生成2mol CH3CH2OH和2mol CO2B．在鸡蛋清溶液中分别加入饱和Na2SO4、CuSO4溶液，都会因盐析产生沉淀C．油脂不是高分子化合物，1 mol油脂完全水解生成1 mol甘油和3 mol高级脂肪酸D．欲检验蔗糖水解产物是否具有还原性，可向水解后的溶液中直接加入新制的Cu(OH)2并加热8．设N A表示阿伏加德罗常数的值，下列叙述中正确的是A．pH=2的盐酸溶液中含有的阳离子数为0.02N AB.100g 98%的浓硫酸中含氧原子个数为4N AC．标准状况下，22.4LCHCl3所含有的分子数目为N AD.常温常压下，14g乙烯和环丙烷的混合物中，含有碳原子的数目为N A9．短周期元素Q、R、T、W在元素周期表中的位置如右图所示，其中T所处的周期序数与主族序数相等，下列推断正确的是A．T的氧化物是光导纤维的主要成分B．Q与氢形成的化合物均含极性共价键C. R的最高正价氧化物的水化物是弱电解质D. W的氢化物的化学式为HCl10.研究人员研制出一种锂水电池，可作为鱼雷和潜艇的储备电源.该电池以金属锂和钢板为电极材料，以LiOH为电解质．使用时加入水即可放电。
关于该电池的下列说法不正确的是A．水既是氧化剂又是溶剂 B．放电时正极上有氢气生成C．放电时Li+向负极移动 D.总反应为：2Li+2H2O==2LiOH+H2↑11.下列说法或表示方法正确的是A.等物质的量的硫蒸气和硫固体分别完全燃烧，后者放出热量多B．由H+(aq) +OH- (aq)==H2O (I) △H=-57.3 kJ/mol可知，若将含1 mol CH3COOH的稀溶液与含1 mol NaOH的稀溶液混合，放出的热量小于57.3kJC．由C（石墨）==C（金刚石）△H=-1.90 kJ/mol可知，金刚石比石墨稳定D.已知在298K时下述反应的有关数据：C(s)+1/2 O2(g)==CO(g)，△H1=-110.5kJ/mol；C（s）+O2(g)==CO2(g)，△H2=-393.5kJ/Mol．则C(s)+CO2(g)==2CO(g)的△H=+283.5kJ/mol12．下列实验过程中产生的现象与对应的图形符合的是13.如图所示，绝热的活塞把一定质量的理想气体密封在水平放置的绝热气缸内，活塞可在气缸内无摩擦地滑动，气缸处在大气中。
气缸左端的电热丝通弱电流对气缸内气体缓慢加热，在此过程中A ．活塞始终静止不动B ．汽缸内气体对外做功C ．汽缸内气体压强增大D ．汽缸内气体内能不变14.设r 0为两个分子间分子引力和斥力平衡的距离，r 为两个分子的实际距离，选取无穷远处为零势面，则以下说法正确的是A ．r=r 0时，分子间的引力和斥力都为零B ．r 0<r<2r 0时，分子间只有引力而无斥力C ．当r 由大于2r 0逐渐减小到等手r 0的过程中，分子间的引力势能始终小于零D ．当r 由小于r 0逐渐增大到大于2r 0的过程中，分子间的引力势能先增大后减小15．如图所示，木块A 质量为1kg ，木块B 的质量为2kg ．叠放在水平地面上，AB 间最大静摩擦力为1N,B与地面间摩擦系数μ=0.1，重力加速度g =10m/s 2。
现用水平力F 作用于B ，则保持AB 相对静止的条件是F 不超过A ．6NB ．5NC ．4ND ．3N16．铁路上常使用如图所示的电磁装置向控制中心传输信号，以报告火车的位置。
火车首节车厢下面安装一磁铁，磁铁产生垂直于地面的匀强磁场。
当磁铁经过安放在两铁轨间的线圈时，会使线圈产生电脉冲信号并被控制中心接收。
若火车以恒定加速度通过线圈，则表示线圈两端的电压u 与时间t 的关系图线可能正确的是二、双项选择题：本大题共9小题，每小题6分，共54分。
在每小题给出的四个选项中，有两个选项符合题目要求，全选对的得6分，只选1个且正确的得3分，有选错或不答的得0分。
17．下列说法正确的是A. 汤姆生通过对阴极射线的研究发现电子B ．卢瑟福通过α粒子散射实验，提出了氢原子的能级结构C ．原子核的平均结合能越大，原子核越稳定D.在X C H N +→+12611157核反应方程中，X 是中子18.在同一水平直线上的两位置分别沿同水平方向抛出两小球A 和B,A 、B 两球先后经过空中的P 点，它们的运动轨迹如右图所示。
不计空气阻力，下列说法中正确的是A.在P 点，A 球的速度大子B 球的速度B ．在P 点，A 球的加速度大于B 球的加速度C ．抛出时，A 球速度小于B 球速度D．抛出时，先抛出A球后抛出B球19.在地球上发射同步卫星，卫星先在近地轨道Ⅰ绕地球运动，再运行至转移轨道Ⅱ，最后运行至同步轨道Ⅲ，以下说法正确的是A．卫星在Ⅰ轨道Q处的速率大于Ⅲ轨道P处的速率B．可借助该同步卫星拍摄南极上方的气象情况C．卫星在转移过程中，发动机需要两次点火加速D．卫星从轨道Ⅰ向轨道Ⅲ转移，周期增大，机械能减少20.如图甲所示是远距离输电的示意图，升压变压器和降压变压器郡是理想变压器，升压变压器输入正弦交流电压如图乙所示，以下说法正确的是A．降压变压器输入回路的电流大于输出回路的电流B．升压变压器输入电压的表达式是u1=500sin100πtVC．若将图乙的正弦交流电直接接在100Ω的电阻上，热功率为2500WD．用户越多，电路输送的电功率也越大，输电线路的电阻r产生热量越多21.真空中相距为3a的两个点电荷M、N,分别固定于x轴上x1=0和x2=3a的两点上，在它们连线上各点场强E随x变化关系如图所示(设场强方向沿x轴正向时E> 0)．以下判断正确的是A．x=2a处的电势一定为零B.在两点电荷之间沿x轴正向是电势减低的方向C.点电荷M、N一定为同种电荷D．点电荷M、N所带电荷量的绝对值之比为4:122．用下列实验装置进行的实验中，能达到相应实验目的的是A．装置甲：减缓铁钉生锈． B．装置乙：可制得金属锰C．装置丙：实验室制取乙酸乙酯 D．装置丁；用氯气进行喷泉实验23．下列各溶液中，微粒的物质的量浓度关系正确的是A. 0.1 mol.L-1 Na2CO3溶液．c(Na-)==2c(HCO3- )+2c(CO32-)+2c(H2CO3)B.0.1mol.L-1 NH4Cl溶液：c(NH4+)==c(Cl-)C.向醋酸钠溶液中加入适量醋酸，得到的酸性混合溶液；c（Na+）>c(CH3COO-)>c(H+)>c(OH-)D．常温下，将pH=2的盐酸和pH=12的氨水等体积混合后；c(NH4+)>c(Cl-)>c(OH-)>c(H+)24.右图表示各种概念之间的关系，下列选项与图示相符的是A.①基因突变．②突变，③可遗传的变异B．①维生素D，②固醇，③脂质C．①食物链和食物网，②物质循环，③生态系统的功能D．①DNA连接酶，②酶，③蛋白质25．下列关于现代生物科技的描述正确的是A. DNA分子杂交技术可检测目的基因是否翻译成蛋白质B．单倍体育种需进行植物组织培养C．快速大量繁殖优质奶羊时，需对供、受体母羊进行周期发情处理D.新型农业生态系统的建立，提高了各营养级间的能量传递效率三、非选择题；本大题共11小题，共182分。
按题目要求作答。
解答题应写出必要的文字说明、方程式和重要演算步骤，只写出最后答案的不能得分。
有数值计算的题，答案中必须明确写出数值和单位。
26.（16分）细胞代谢是生物体进行各项生命活动的基础。
图甲为某植物细胞内有关代谢示意图，图乙为人体某组织细胞物质代谢示意图，其中A，B、C代表细胞结构，①、②、③、④代表物质。
(1)图甲细胞与根尖分生区细胞结构不同的是_________。
若人体处于饥饿状态，图乙细胞多糖到葡萄糖分解过程会加强．则该细胞为____________。
(2)图甲所示细胞可作为哪些生物实验的理想材料？________图乙中红细胞可作为哪些生物实验的理想材料？__________A.观察DNA、RNA在细胞中的分布 B．血红蛋白的提取和分离C．制备细胞膜 D.观察叶绿体E．观察线粒体 F．观察细胞的有丝分裂(3)物质④的名称是____ ，它是细胞代谢重要的中间产物。