APH高考作文

写作指导  点击:   2013-06-16

APH高考作文篇一

120句作文提分

120句高考写作提分套话

1、 It goes without saying that it pays to keep early hours.

It goes without saying that 毋庸置疑……

再如:It goes without saying that no pains, no gains.

毋庸置疑,不劳无获。

2、 I am greatly convinced that prevention is better than cure.

我对预防胜于治疗深信不疑。

I am greatly convinced that 我深信不疑……

3、 Among various kinds of sports, I like jogging in particular.

在繁多的运动中,我特别喜欢慢跑。

Among various kinds of 在繁多的……中

in particular 特别,尤其

4、 It can be early proved that nothing is more precious than time.

没有什么比时间更重要是显而易见的。

It can be early proved that ……是显而易见的,很好证明的

5、 The importance of traffic safely cannot be overemphasized.

交通安全的重要性怎样提也不为过。

cannot be overemphasized ……再……也不为过

6、 In my opinion, playing video games not only takes much time but(also)is also harmful to health.

在我看来,玩电子游戏不仅浪费大量时间而且有害健康。

In my opinion 在我看来……

not only…… but(also)……

7、 As far as my knowledge is concerned, the following ways are of great help to me. 在我知识所及的范围内,下列几种方式对我有很大帮助。 As far as 到……程度

8、 There is no doubt that near-sightedness is a serious problem among the youth of our country. 近视在我国青少年中是一个很严重的问题是毋庸置疑的。

There is no doubt that ……是毋庸置疑的

9、 According to my personal experience, the smile has done me a lot of good.

根据我个人的经验,微笑带给我很多好处。

According to 根据……

10、 Of all the people I know, perhaps none deserves my respect more than my father. 在我知道的所有人中,或许没有人受到的尊敬比我父亲多了。

perhaps none deserves …… more than ……

没有……受到的……比……多了

11、With the rapid development of economy, a lot of social problems have come to pass. 随着经济的高速增长,很多社会问题已经得到解决。

With the rapid development of economy 随着经济的高速增长

come to pass 解决

12、In this age of information and communication, the computer plays an extremely important role. 在这个信息和交流的时代里,计算机扮演了一个重要的角色。

In this age of…… 在……的时代里

plays an ……role 扮演了一个……的角色

extremely adv 非常,极其

13、In dealing with one’s future career, one cannot but admit that it is very important to decide one’s future as early as possible.

在处理一个人未来事业的问题上,每个人都承认尽早的决定一个人的未来是很重要的。 it is + adj+ to do sth 做某事是很……的

one cannot but 一个人除了……(别无它法)

but此处做“除了”意

14、Nothing in the world can delight me so much as having hamburgers in fast-food restaurant. 世界上没有什么比让我坐在快餐店里吃汉堡更另我高兴的了。

Nothing in the world can …… sb so …… as 世界上没有什么比让某人……更另他……的了

15、It is proper that we (should) keep public places clean.

我们保持公共场合的洁净是合适的。

It is proper that ……是合适的,适当的的

is increasing fast.

从以上表格中我们可以明显的看出,中国人口在高速增长。

From the graph/table/diagram/chart above, we can see 从以上表格中我们可以看出…… table/diagram 适用于饼图

17、The header we work, the more beautiful our homeland will become.

我们工作的越辛苦,我们的家乡就会变的越漂亮。

The+比较级…… , the+比较级… 越……越…… 16、From the graph/table/diagram/chart above, we can see obviously that the population of China

18、It is believe (that) reading increases our knowledge and broadens our mind.

阅读增长我们的知识并且开拓我们的思路是可信的。

It is believe (that) ……是可信的,普遍认为的

(That引导的从句是句子的真正主语)

broaden our mind 开拓我们的思路

附:broaden/widen one’s view/horizon 开拓某人的视野

19、The main reason why the juveniles commit crimes is that social environment is becoming worse.

导致年轻人犯错误的主要原因是社会环境正在变糟 。

The reason why …… is that …… 导致……的原因是……

juveniles n年轻人(juven-年轻)

commit vt 犯错误、罪行;干错事

20、As an old saying goes, “honestly is the best policy.”

常言道:诚实是最美好的品德。

policy n政策,方针,美好的行为

21、I increase my confidence in the following ways.

我通过以下方式来增加我的自信。

22、People learn a foreign language for three major reasons.

人们因为以下三种原因而学习外语。

23、To keep healthy, there are at least three things we can do every day.

为了保持健康,我们每天至少可以做三件事。

there are句型中注意避免双谓语

24、We need to live a regular life. That is, we can keep good hours and refrain form smoking and drinking in the daily activities.

我们需要拥有一个有规律的生活。这就是,我们能够保持好的作息时间并且在日常的活动中控制自己不要抽烟和饮酒。

refrain form 控制自己不要……

25、For this reason, I have decided to take practicing medicine as my future career.

因为这个原因,我已经决定把应用药学作为我未来的事业。

For this reason 因为这个原因……

practicing medicine 应用药学

26、We have reasons to believe that such punishment should be strictly prohibited.

我们有理由相信这样一个刑罚必须得到严格的禁止。

We have reasons to do sth 我们有理由作某事

punishment n 罪,刑罚

prohibit vt禁止,不准许

27、As a matter of fact, it is health that counts.

作为一个事实,健康是很重要的。

As a matter of fact 作为一个事实

count在此处等于matter vi 要紧,重要

28、For example, we elevate the living standards blindly, but lower the quality of life.

举例来说,我们盲目的提高我们的生活水平,却降低了生活品质。

elevate vt 抬起,使抬高

standard n标准 adj标准的

29、In addition, we should not neglect that everyone wants a friendly and peaceful society. 另外,我们不能忽略每个人都希望拥有一个友好而且和平的社会。

In addition 另外,除了

neglect n 忽略,疏忽,无视

30、On the contrary, a few students, it seems, are still fooling around.

正相反,少数的同学似乎还在到处胡说八道。

On the contrary 正相反

此句中注意插入语的应用

31、The government should enforce laws strictly. On the other hand, the public also should develop the good habit of reducing pollution.

政府应该严格执行法律。从另一方面来说,民众也应培养减少污染的好习惯。

enforce vt 实施,执行

reduce vt vi 减少,缩小

32、It’s a pity that he didn’t pass the examination.

他没有通过考试真是一个遗憾。

It’s a pity that ……是一个遗憾

33、In other words, I will try my best to gain my goal.

换言之,我将尽我最大的努力来实现我的梦想。

In other words 换言之

try my best 尽我最大的努力

gain my goal 实现我的梦想(同achieve one’s goal)

34、It may be true as assumed by others, but I don’t. I believe that if you have strong determination and perseverance, the success will certainly come to you in the end.

假定在别人身上是正确的,但我不是。我相信如果你又很强的决心和毅力,成功将最终一定会降临到你的身上。

assume vt 假定假设

perseverance n 毅力,坚韧不拔,不屈不挠

35、Ever since then, I have found smile the best way to avoid any possibleonflicts in our daily lives. 从那时起,我已经发现微笑是日常生活中避免任何可能冲突的最好的方法。

Ever since then 从那时起

conflict n 冲突,战争,斗争

36、What is more serious is that we do not cherish the wildlife.

最严重的是我们没有爱护野生动物。

What is more serious is that 熟悉主语从句和宾语从句

cherish vt 抚育, 爱护

37、Helen is the most beautiful girl that I have ever seen.

海伦是我看到过的女孩中最漂亮的一个。

熟悉同位语从句的应用

38、Nothing is more important than to receive education.

没有什么比受教育更为重要的了。

more…… than…… 比……更……

39、An advantage of using the solar energy is that it won’t produce ant pollution.

应用太阳能的一个有利之处在于它不会产生污染。

An advantage of 一个有利之处是……

40、Listening to music enable us to feel relaxed.

听音乐可以让我们感到放松。

enable vt 使能够

relax vt vi 使松弛,放松

41、Thanks to his encouragement, I finally realized my dream.

42、In this way, I believe that all the people may be able to enjoy the bus ride like me.

43、Last but not the least, the shortcoming in education is the cause contributing to juvenile delinquency.

44、For these reasons, I thank that receiving college education in Beijing is wise.

45、In conclusion, a good citizen should abide by traffic regulations.

46、We can, therefore come to the conclusion that nothing is so precious as freedom in the world.

47、If we can do as mentioned above, there can be no doubt that we can master English.

48、Thus, this is the reason why I caught a bad cold.

49、Therefore, we should realized that in learning English we cannot do without a dictionary.

50、We, therefore, can make clear from the above discussion that perseverance can overcome any difficulty.

51、It wasn’t until he came back that I went to the bed.

52、It was because he was ill that he didn’t come to school today.

53、It happened that he was out when I got there.

54、It seemed that he had been to Beijing before.

55、It is high time that we went home.

56、He was said to have read this novel.

57、It is strange that he should have failed in this exam.

58、He didn’t come back until the film ended. It is a pity that he should have missed this film.

59、It was suggested that the meeting should be put off.{APH高考作文}.

60、It was this house where I was born.

61、It was 1999 when he came back from the United States.

62、It is well-known that she is a learned women.

63、It is five years since he left here.

64、It wasn’t long before the people in that country rose up.

65、It will be three hours before he comes back.

66、It is impossible for me to finish this work before tomorrow.

67、It is kind of you to help me.

68、As we have known, he is a most good engineer.

69、He is a professor, which I have been looking forward to becoming.

70、This is the house where I used to come.

71、This is the day when I joined the Party.

72、No matter what I do, you must do it well.

73、As long as you give me some money, I will let you go.

74、Once you have begun to learn English, you should learn it well.

75、I will go with you on condition that you give me some money.

76、I will go there tomorrow unless it rains.

77、Use your head, and you will find a good idea.

78、If necessary, I will do it.

79、I will take my raincoat in case it rains.

80、He didn’t come to school because of the fact that he was ill.

81、They hadn’t been married four months before they were devoiced.

82、We went home after we had finished the work.

83、I worked until he came back.

84、I didn’t work until he came back.

85、I had no sooner got to Beijing than I called you.

86、She had hardly had supper when she went out.

87、By the time you come back, I will have finished this book.

88、By the time you came back, I had finished this book.

89、Each time he comes to Beijing, he always visited me.

90、Where there is no rain, farming is difficult or impossible.

91、Where there is a will, there is a way.

92、I will go wherever you suggest.

93、I got up early in order that I could catch up the first bus.

94、He came here for me to work out this problem.

95、He was vary cold, so that the river froze.

96、So interesting is this book that I would like to read it again.

97、He made such a rapid progress that he was praised by the teacher.

98、Such was the force of the explosion that all the windows were broken.

99、The sooner you do it, the better it will be.

100、He is as busy as a bee.

101、He is the taller of the two.

102、This room is three times as large as that one.

103、This city is twice larger than ours.

104、The early rice output in that commune was 200 percent more than of 2000. 105、Our building is twice the height of yours.

106、It doesn’t matter to me what you will do tomorrow.

107、It doesn’t matter whether you will come or not.

108、Young as he is, he knows a lot.

{APH高考作文}.

109、Were I you, I would have gone there yesterday.

110、Only by this means can I do this work well.

111、Only because he was ill did he not come to school.

112、Only then did I realize that I had been wrong.

113、Not only did he learn English well but also he spoken French very well. 114、I don’t doubt that he will come this afternoon.

115、The women to whom I spoken just now can spoke several foreign languages. 116、What surprises him is that the little girl knows so many things.

117、He is such a good teacher that we all like and respect him.

118、Our country is a beautiful country with a long history.

119、Seeing him, I jumped with joy.

120、Compared with Beijing, Shanghai is more modern and fashionable.

APH高考作文篇二

2016年全国高考理数试题四川券(含答案)

2016年普通高等学校招生全国统一考试(四川卷)

数学(理工类)

一、选择题:本大题共10小题,每小题5分,共50分。在每小题给出的四个选项中,只有一个是符合题目要求的。

1.设集合A{x|2x2},Z为整数集,则AZ中元素的个数是

(A)3(B)4(C)5(D)6

2.设i为虚数单位,则(xi)6的展开式中含x4的项为

(A)-15x4(B)15x4(C)-20i x4(D)20i x4

3.为了得到函数ysin(2x)的图象,只需把函数ysin2x的图象上所有的点 π

3

ππ个单位长度(B)向右平行移动个单位长度 33

ππ(C)向左平行移动个单位长度(D)向右平行移动个单位长度 66(A)向左平行移动

4.用数字1,2,3,4,5组成没有重复数字的五位数,其中奇数的个数为

(A)24(B)48(C)60(D)72

5.某公司为激励创新,计划逐年加大研发资金投入.若该公司2015年全年投入研发资金130万元,在此基础上,每年投入的研发资金比上一年增长12%,则该公司全年投入的研发资金开始超过200万元的年份是 (参考数据:lg 1.12≈0.05,lg 1.3≈0.11,lg2≈0.30)

( A)2018年(B)2019年(C)2020年(D)2021年

6.秦九韶是我国南宋使其的数学家,普州(现四川省安岳县)人,他在所著的《数书九章》中提出的多项式求值的秦九韶算法,至今仍是比较先进的算法.如图所示的程序框图给出了利用秦九韶算法求某多项式值的一个实例,若输入n,x的值分别为3,2,则输出v的值为

(A)9 (B)18 (C)20 (D)

35

yx1,7.设p:实数x,y满足(x–1)2–(y–1)2≤2,q:实数x,y满足y1x,则p是q的

y1,

(A)必要不充分条件(B)充分不必要条件(C)充要条件(D)既不充分也不必要条件

8.设O为坐标原点,P是以F为焦点的抛物线y22px(p0)上任意一点,M是线段PF上的点,且PM=2MF,则直线OM的斜率的最大值为

(A

)2(B)(C

)(D)1 332

9.设直线l1,l2分别是函数f(x)=lnx,0x1,图象上点P1,P2处的切线,l1与l2垂直相交于点P,且l1,

lnx,x1,

l2分别与y轴相交于点A,B,则△PAB的面积的取值范围是

(A)(0,1) (B)(0,2) (C)(0,+∞) (D)(1,+∞)

10.在平面内,定点A,B,C,D满足DA=DB=DC,DA﹒DB=DB﹒DC=DC﹒DA=-2,动点P,

M满足AP=1,PM=MC,则BM2的最大值是

(A)4349(B)(C

D

44二、填空题:本大题共5小题,每小题5分,共25分。

11.cos2ππ–sin2=. 88

12.同时抛掷两枚质地均匀的硬币,当至少有一枚硬币正面向上时,就说这次试验成功,则在2次试验中成功次数X的均值是.

13.已知三棱镜的四个面都是腰长为2的等腰三角形,该三棱锥的正视图如图所示,则该三棱锥的体积是。

14.已知函数f(x)是定义在R上的周期为2的奇函数,当0<x<1时,f(x)=,则f()+ f(1)=。15.在平面直角坐标系中,当P(x,y)不是原点时,定义P的“伴随点”为P('yx,); 2222xyxy

'当P是原点时,定义P的“伴随点“为它自身,平面曲线C上所有点的“伴随点”所构成的曲线C定义为

曲线C的“伴随曲线”.现有下列命题:

①若点A的“伴随点”是点A,则点A的“伴随点”是点A

''

②单位圆的“伴随曲线”是它自身;

③若曲线C关于x轴对称,则其“伴随曲线”C'关于y轴对称;

④一条直线的“伴随曲线”是一条直线.

其中的真命题是_____________(写出所有真命题的序列).

三、解答题:本大题共6小题,共75分。解答应写出文字说明、证明过程或演算步骤。

16.(本小题满分12分)

我国是世界上严重缺水的国家,某市政府为了鼓励居民节约用水,计划调整居民生活用水收费方案,拟确定一个合理的月用水量标准x(吨)、一位居民的月用水量不超过x的部分按平价收费,超出x的部分按议价收费.为了了解居民用水情况,通过抽样,获得了某年100位居民每人的月均用水量(单位:吨),将数据按照[0,0.5),[0.5,1),„,[4,4.5)分成9组,制成了如图所示的频率分布直方图.

(I)求直方图中a的值;

(II)设该市有30万居民,估计全市居民中月均用水量不低于3吨的人数,并说明理由;

(III)若该市政府希望使85%的居民每月的用水量不超过标准x(吨),估计x的值,并说明理由.

17.(本小题满分12分)

在△ABC中,角A,B,C所对的边分别是a,b,c,且

(I)证明:sinAsinBsinC;

(II)若bca222cosAcosBsinC. abc6bc,求tanB. 5

1AD.E为边AD

的中点,异218.(本小题满分12分) 如图,在四棱锥P-ABCD中,AD∥BC,ADC=PAB=90°,BC=CD=

面直线PA与CD所成的角为90°.

(I)在平面PAB内找一点M,使得直线CM∥平面PBE,并说明理由;

(II)若二面角P-CD-A的大小为45°,求直线PA与平面PCE所成角的正弦值.

19.(本小题满分12分)

已知数列{an}的首项为1,Sn为数列{an}的前n项和,Sn1qSn1,其中q>0,nN*.

(I)若2a2,a3,a22成等差数列,求an的通项公式;

4n3n5y2

(ii)设双曲线x21的离心率为en,且e2,证明:e1e2en n133an.2

20.(本小题满分13分)

已知椭圆E:的两个焦点与短轴的一个端点是直角三角形的3个顶点,直线l:y=-x+3与椭圆E有且只有一个公共点T.

(I)求椭圆E的方程及点T的坐标;

(II)设O是坐标原点,直线l’平行于OT,与椭圆E交于不同的两点A、B,且与直线l交于点P.证明:存在常数λ,使得∣PT∣2=λ∣PA∣·∣PB∣,并求λ的值.

21.(本小题满分14分){APH高考作文}.

设函数f(x)=ax2-a-lnx,其中a ∈R.

(I)讨论f(x)的单调性;

(II)确定a的所有可能取值,使得f(x)>-e1-x+在区间(1,+∞)内恒成立(e=2.718„为自然对数的底数)。

2016年普通高等学校招生全国统一考试(四川卷)

数学(理工类)试题参考答案

一、选择题

1.C 2.A 3.D 4.D 5.B

6.B 7.A 8.C 9.A 10.B

二、填空题

11

3 12. 13

14.–2 15.②③ 2三、解答题

16.(本小题满分12分)

(Ⅰ)由频率分布直方图知,月均用水量在[0,0.5)中的频率为0.08×0.5=0.04,

同理,在[0.5,1),[1.5,2),[2,2.5),[3,3.5),[3.5,4),[4,4.5)中的频率分别为0.08,0.20,0.26,0.06,0.04,0.02.

由0.04+0.08+0.5×a+0.20+0.26+0.5×a+0.06+0.04+0.02=1,

解得a=0.30.

(Ⅱ)由(Ⅰ),100位居民每人月均用水量不低于3吨的频率为0.06+0.04+0.02=0.12.

由以上样本的频率分布,可以估计全市30万居民中月均用水量不低于3吨的人数为

300 000×0.12=36 000.

(Ⅲ)因为前6组的频率之和为0.04+0.08+0.15+0.20+0.26+0.15=0.88>0.85,

而前5组的频率之和为0.04+0.08+0.15+0.20+0.26=0.73<0.85,

所以2.5≤x<3.

由0.3×(x–2.5)=0.85–0.73,

解得x=2.9.

所以,估计月用水量标准为2.9吨时,85%的居民每月的用水量不超过标准.

17.(本小题满分12分) (Ⅰ)根据正弦定理,可设abc===k(k>0). sinAsinBsinC

则a=ksin A,b=ksin B,c=ksin C. 代入cosAcosBsinC+=中,有 abc

APH高考作文篇三

江苏高考应用题专题附详细答案

(2)设0<v≤5,试确定下潜速度v,使总的用氧量最少.

例3、(本小题满分13分)某创业投资公司拟投资开发某种新能源产品,估计能获得10万元~1000万元的投资收益.现准备制定一个对科研课题组的奖励方案:奖金y(单位:万元)随投资收益x(单位:万元)的增加而增加,且奖金不超过9万元,同时奖金不超过投资收益的20%.(Ⅰ)若建立函数模型制定奖励方案,试用数学语言表述公司对奖励函数模型的基本要求;(Ⅱ)现有两个奖励函数模型:(1)y=

;(2)y=4lgx-3.试分析这两个函数模型是否符合公司要求?

解析:(Ⅰ)设奖励函数模型为y=f(x),则公司对函数模型的基本要求是:

当x∈[10,1000]时,①f(x)是增函数;②f(x)≤9恒成立;③恒成立. (3分)

(Ⅱ)(1)对于函数模型:当x∈[10,1000]时,f(x)是增函数,则

.所以f(x)≤9恒成立.因为函数在[10,

1000]上是减函数,所以. 从而,即不恒成立.

故该函数模型不符合公司要求.

(2)对于函数模型f(x)=4lgx-3:当x∈[10,1000]时,f(x)是增函数,则

. 所以f(x)≤9恒成立.设g(x)=4lgx-3-,则

.当x≥10时,,所以g(x)在[10,1000]

上是减函数,从而g(x)≤g(10)=-1<0.所以4lgx-3-<0,即4lgx-3<,所以恒成

立.故该函数模型符合公司要求. (13分)

例4、因发生意外交通事故,一辆货车上的某种液体泄露到一鱼塘中。为治理污染,根据环保部门的建议,现决定在鱼塘中投放一种可与污染液体发生化学反应的药剂。已知每投放 单位的药剂,它在水中释放的浓度y(克/升)随着时间(天)变化的函数关系式近似为

个,

其中。若多次投放,则某一时刻水中的药剂浓度为每次投放的药剂在相应

时刻所释放的浓度之和。根据经验,当水中药剂的浓度不低于4(克/升)时,它才能起到有效的治污的作用。

(Ⅰ)若一次投放4个单位的药剂,则有效治污的时间可达几天?

(Ⅱ)若因材料紧张,第一次只能投放2个单位的药剂,6天后再投放个单位的药剂,要使接下来的4天中能够持续有效治污,试求的最小值(精确到0.1,参考数据:

取1.4)。

解:1)因为 ,所以,

①当时,由,解得,所以此时

②当综合得,

时,由,解得,所以此时。

,即,若一次投放4个单位的制剂,则有效治污时间可达8天。

(2) 当时,

APH高考作文篇四

2016年四川理数高考试题文档版(含答案)

2016年普通高等学校招生全国统一考试(四川卷)

数学(理工类)

本试卷分第I卷(选择题)和第II卷(非选择题),第I卷1至2页,第II卷3至4页,共4页,满分150分,考试时间120分钟,考生作答时,须将答案答在答题卡上,在本试题卷、草稿上答题无效,考试结束 后,将本试题卷和答题卡一并交回。

第I卷(选择题 共50分)

一、选择题:本大题共10小题,每小题5分,共50分。在每小题给出的四个选项中,只有一个是符合题目要求的。

1.设集合A{x|2x2},Z为整数集,则AZ中元素的个数是( )

(A)3(B)4(C)5(D)6

2.设i为虚数单位,则(xi)的展开式中含x4的项为( )

(A)-15x4(B)15x4(C)-20i x4(D)20i x4

3.为了得到函数ysin(2x)的图象,只需把函数ysin2x的图象上所有的点( ) 6π

3

ππ个单位长度(B)向右平行移动个单位长度 33

ππ(C)向左平行移动个单位长度(D)向右平行移动个单位长度 66(A)向左平行移动

4.用数字1,2,3,4,5组成没有重复数字的五位数,其中奇数的个数为( )

(A)24(B)48(C)60(D)72

5.某公司为激励创新,计划逐年加大研发资金投入.若该公司2015年全年投入研发资金130万元,在此基础上,每年投入的研发资金比上一年增长12%,则该公司全年投入的研发资金开始超过200万元的年份是( ) (参考数据:lg 1.12≈0.05,lg 1.3≈0.11,lg2≈0.30)

( A)2018年(B)2019年(C)2020年(D)2021年

6.秦九韶是我国南宋时期的数学家,普州(现四川省安岳县)人,他在所著的《数书九章》中提出的多项式求值的秦九韶算法,至今仍是比较先进的算法.如图所示的程序框图给出了利用秦九韶算法求某多项式值的一个实例,若输入n,x的值分别为3,2,则输出v的值为( )

(A)9 (B)18 (C)20 (D)35

yx1,7.设p:实数x,y满足(x–1)2+(y–1)2≤2,q:实数x,y满足y1x,则p是q的( )

y1,

(A)必要不充分条件(B)充分不必要条件(C)充要条件(D)既不充分也不必要条件

8.设O为坐标原点,P是以F为焦点的抛物线y2px(p0)上任意一点,M是线段PF上的点,且2

PM=2MF,则直线OM的斜率的最大值为( )

(A

2B)(C

D)1 39.设直线l1,l2分别是函数f(x)=lnx,0x1,图象上点P1,P2处的切线,l1与l2垂直相交于点P,且l1,

lnx,x1,

l2分别与y轴相交于点A,B,则△PAB的面积的取值范围是( )

(A)(0,1) (B)(0,2) (C)(0,+∞) (D)(1,+∞)

10.在平面内,定点A,B,C,D满足DA=DB=DC,DADB=DBDC=DCDA=-2,动点P,M2满足AP=1,PM=MC,则BM的最大值是( )

(A)4349(B)(C

D

44

第II卷(非选择题 100分)

二、填空题:本大题共5小题,每小题5分,共25分。

11.cos2ππ–sin288

12.同时抛掷两枚质地均匀的硬币,当至少有一枚硬币正面向上时,就说这次试验成功,则在2次试验中成功次数X的均值是 .

13.已知三棱锥的四个面都是腰长为2的等腰三角形,该三棱锥的正视图如图所示,则该三棱锥的体积是 。

正视图

14.已知函数(fx)是定义在R上的周期为2的奇函数,当0<x<1时,(fx)=4,则(fx)+ f(1)= 。

15.在平面直角坐标系中,当P(x,y)不是原点时,定义P的“伴随点”为P('yx,); 2222xyxy

'当P是原点时,定义P的“伴随点“为它自身,平面曲线C上所有点的“伴随点”所构成的曲线C定义为

曲线C的“伴随曲线”.现有下列命题:

①若点A的“伴随点”是点A,则点A的“伴随点”是点A

②单位圆的“伴随曲线”是它自身;

③若曲线C关于x轴对称,则其“伴随曲线”C关于y轴对称;

④一条直线的“伴随曲线”是一条直线.

其中的真命题是_____________(写出所有真命题的序列).

三、解答题:本大题共6小题,共75分。解答应写出文字说明、证明过程或演算步骤。

16.(本小题满分12分)

我国是世界上严重缺水的国家,某市政府为了鼓励居民节约用水,计划调整居民生活用水收费方案,拟确定一个合理的月用水量标准x(吨)、一位居民的月用水量不超过x的部分按平价收费,超出x的部分按议价收费.为了了解居民用水情况,通过抽样,获得了某年100位居民每人的月均用水量(单位:吨),将'''

数据按照[0,0.5),[0.5,1),„,[4,4.5)分成9组,制成了如图所示的频率分布直方图

.

(I)求直方图中a的值;

(II)设该市有30万居民,估计全市居民中月均用水量不低于3吨的人数,并说明理由;

(III)若该市政府希望使85%的居民每月的用水量不超过标准x(吨),估计x的值,并说明理由.

17.(本小题满分12分)

在△ABC中,角A,B,C所对的边分别是a,b,c,且

(I)证明:sinAsinBsinC;

(II)若bca222cosAcosBsinC. abc6bc,求tanB. 5

18.(本小题满分12分)

如图,在四棱锥P-ABCD中,AD∥BC,ADC=PAB=90°,BC=CD=

面直线PA与CD所成的角为90°.

P1AD.E为棱AD的中点,异2

BC

AED

(I)在平面PAB内找一点M,使得直线CM∥平面PBE,并说明理由;

(II)若二面角P-CD-A的大小为45°,求直线PA与平面PCE所成角的正弦值.

19.(本小题满分12分)

已知数列{an}的首项为1,Sn为数列{an}的前n项和,Sn1qSn1,其中q>0,nN*.

(I)若2a2,a3,a22成等差数列,求{an}的通项公式;

4n3n5y2

(ii)设双曲线x21的离心率为en,且e2,证明:e1e2en n133an.2

20.(本小题满分13分)

已知椭圆E:

与椭圆E有且只有一个公共点T.

(I)求椭圆E的方程及点T的坐标;

(II)设O是坐标原点,直线l’平行于OT,与椭圆E交于不同的两点A、B,且与直线l交于点P.证明:存在常数λ,使得∣PT∣2=λ∣PA∣·∣PB∣,并求λ的值.

21.(本小题满分14分)

设函数f(x)=ax2-a-lnx,其中a ∈R.

(I)讨论f(x)的单调性;

(II)确定a的所有可能取值,使得f(x)

数)。

的两个焦点与短轴的一个端点是直角三角形的3个顶点,直线l:y=-x+311xe在区间(1,+∞)内恒成立(e=2.718„为自然对数的底x

APH高考作文篇五

2016年全国高考理科数学试题及答案-四川卷 (1)

2016年普通高等学校招生全国统一考试(四川卷)

数学(理工类)

一、选择题:本大题共10小题,每小题5分,共50分。在每小题给出的四个选项中,只有一个是符合题目要求的。

1. 设集合A{x|2x2},Z为整数集,则A∩Z中元素的个数是 (A)3 (B)4 (C)5 (D)6

2. 设i为虚数单位,则(xi)6的展开式中含x4的项为 (A)-15x4(B)15x4(C)-20i x4(D)20i x4

3. 为了得到函数ysin(2x)的图象,只需把函数ysin2x的图象上所有的点

π3

ππ

个单位长度(B)向右平行移动个单位长度 33ππ

(C)向左平行移动个单位长度(D)向右平行移动个单位长度

66

(A)向左平行移动

4. 用数字1,2,3,4,5组成没有重复数字的五位数,其中奇数的个数为 (A)24(B)48(C)60(D)72

5. 某公司为激励创新,计划

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