江苏省南京市金陵中学牛津英语高三牛津英语模块九单元一练习三

1.如图，在正方形ABCD的内部作等边△ADE，则∠AEB度数为（）

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2.实验室中所用少量氯气是用下列方法制取的

，4HCl（浓）+MnO₂ {#mathml#} $\underline{\underline{Δ}}$ {#/mathml#} Cl₂↑+MnCl₂+2H₂O

试回答下列问题：

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3.已知椭圆C：

\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}} = 1 (a > b > 0)

经过点

(1 ， \frac{2 \sqrt{3}}{3})

，左右焦点分别为F₁、F₂，圆x²+y²=2与直线x+y+b=0相交所得弦长为2．

（Ⅰ）求椭圆C的标准方程；

（Ⅱ）设Q是椭圆C上不在x轴上的一个动点，O为坐标原点，过点F₂作OQ的平行线交椭圆C于M、N两个不同的点

⑴试探究 $\frac{| M N |}{| O Q |^{2}}$ 的值是否为一个常数？若是，求出这个常数；若不是，请说明理由．

⑵记△QF₂M的面积为S₁，△OF₂N的面积为S₂，令S=S₁+S₂，求S的最大值．

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4.已知椭圆C：

\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}} = 1 (a > b > 0)

经过点

(1 ， \frac{2 \sqrt{3}}{3})

，左右焦点分别为F₁、F₂，圆x²+y²=2与直线x+y+b=0相交所得弦长为2．

（Ⅰ）求椭圆C的标准方程；

（Ⅱ）设Q是椭圆C上不在x轴上的一个动点，O为坐标原点，过点F₂作OQ的平行线交椭圆C于M、N两个不同的点

⑴试探究 $\frac{| M N |}{| O Q |^{2}}$ 的值是否为一个常数？若是，求出这个常数；若不是，请说明理由．

⑵记△QF₂M的面积为S₁，△OF₂N的面积为S₂，令S=S₁+S₂，求S的最大值．

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5.已知椭圆C：

\frac{x^{2}}{a^{2}} + \frac{y^{2}}{b^{2}} = 1 (a > b > 0)

经过点

(1 ， \frac{2 \sqrt{3}}{3})

，左右焦点分别为F₁、F₂，圆x²+y²=2与直线x+y+b=0相交所得弦长为2．

（Ⅰ）求椭圆C的标准方程；

（Ⅱ）设Q是椭圆C上不在x轴上的一个动点，O为坐标原点，过点F₂作OQ的平行线交椭圆C于M、N两个不同的点

⑴试探究 $\frac{| M N |}{| O Q |^{2}}$ 的值是否为一个常数？若是，求出这个常数；若不是，请说明理由．

⑵记△QF₂M的面积为S₁，△OF₂N的面积为S₂，令S=S₁+S₂，求S的最大值．

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6.下列做法不正确的是（）

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7.为考察某种药物预防禽流感的效果，进行动物家禽试验，调查了100个样本，统计结果为：服用药的共有60个样本，服用药但患病的仍有20个样本，没有服用药且未患病的有20个样本．

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8.春砂仁主产于广东阳江等地，它的果实是中医常用的一味药材，也可用作调味品．春砂仁幼果发育过程中，落果率一般为30%～60%，严重影响春砂仁产量．中山大学研究人员尝试研究防止落果的有效措施，实验结果见表．请回答问题：

喷施2，4﹣D对春砂仁保果和产量的影响

处理浓度（ppm）	幼果数（个）	收果数（个）	保果率（%）	增减产（克/米²）
5	232.7	123.3	52.9	+69.6
10	189.3	97.6	51.5	+5.5
15	160.0	75.3	47.0	﹣34.9
0	201.6	92.3	45.7

注：1ppm=0.0001%

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9.春砂仁主产于广东阳江等地，它的果实是中医常用的一味药材，也可用作调味品．春砂仁幼果发育过程中，落果率一般为30%～60%，严重影响春砂仁产量．中山大学研究人员尝试研究防止落果的有效措施，实验结果见表．请回答问题：

喷施2，4﹣D对春砂仁保果和产量的影响

处理浓度（ppm）	幼果数（个）	收果数（个）	保果率（%）	增减产（克/米²）
5	232.7	123.3	52.9	+69.6
10	189.3	97.6	51.5	+5.5
15	160.0	75.3	47.0	﹣34.9
0	201.6	92.3	45.7

注：1ppm=0.0001%

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10.图甲表示某酶促反应过程，图乙表示图甲的反应过程中有关物质浓度随时间变的曲线（物质a的起始浓度为10mmol/L）．下列叙述不正确的是（）

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11.图甲表示某酶促反应过程，图乙表示图甲的反应过程中有关物质浓度随时间变的曲线（物质a的起始浓度为10mmol/L）．下列叙述不正确的是（）

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12.

生命需要相互尊重，相互关爱。下列选项中不能体现尊重生命的行为是（）

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13.

观察生物可用肉眼，还可以使用{#blank#}1{#/blank#} 等仪器或工具。

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14.

关于做匀速圆周运动的物体的线速度、角速度、周期的关系，下面说法中正确的是（）

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15.差异性是社会存在的客观现实，多样化是社会发展的必然趋势。思想文化越是多样化，越是需要有“主心骨”。这需要

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16.差异性是社会存在的客观现实，多样化是社会发展的必然趋势。思想文化越是多样化，越是需要有“主心骨”。这需要

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17.如图所示的家用电器，利用电流热效应工作的是（）

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18.如图所示的家用电器，利用电流热效应工作的是（）

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19.如图所示的家用电器，利用电流热效应工作的是（）

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20.

有人爱吃青蛙，为此有人大量捕捉野生青蛙。这种做法对不对？答{#blank#}1{#/blank#}

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21.

Billy Crystal hosted the Academy Awards again this year, and his talks always ________ the expectation of most audience.

A．put up with	B．end up with
C．live up to	D．add up to

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22.

To ____ the attendants’ awareness of service, The Jinan Passenger Transportation Section and Shandong Airline launched a program for their attendants to exchange experience on Nov 1, 2012.

A．arise	B．raise
C．rise	D．arouse

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23.

Ancient Greeks were responsible for many of the _______ in science and other fields．

A．advances	B．progress
C．development	D．civilization

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24.

I have bought a good book, ______ that will surely interest ______ of the students．

A．one; everyone	B．the one; everyone
C．one; every one	D．the one; every one

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25.

Living in_________ ever increasingly fast-paced world, we are facing greater competition, so we must take _________ advantage of every opportunity to develop.

A．an; the	B．an; /
C．the; an	D．the; /

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26.

Canada is one of _____ largest countries in the world, ______ second only to Russia．

A．the; the	B．the; a
C．a; the	D．the; 不填

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27.

As he approached the door, Mike looked into the room again to see if he _______ anything behind.

A．left	B．had left
C．has left	D．would leave

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28.

Looking back on the three-year life in the mountain village, Thomas _______ it as a milestone in his personal development.

A．values	B．confirms
C．declares	D．assumes

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29.

Under the environment of fierce competition, the only way John could imagine _______ stress was to get tougher by making greater efforts.

A．handling	B．to handle
C．handled	D．having handled

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30.

Pressed from his parents, and ____ that he has wasted too much time, the boy is determined to stop playing video games.

A．realizing	B．realized
C．to realize	D．being realized

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31.

— Do you know the tower _____ in the heart of the city?
— Do you mean the one _____ to the north of the city library?

A．locating; lay	B．located; lying
C．being located; lying	D．located; lay

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32.

Another group of Qing Tombs sits about 100 kilometres ______ of Beijing．

A．at the west	B．the west
C．to west	D．west

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33.

I am _______ about what I say because careless remarks are likely to hurt others’ feelings.

A．enthusiastic	B．concerned
C．doubtful	D．cautious

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34.

The man should be excused because he caused the damage _______．

A．deliberately	B．unintentionally
C．meaningfully	D．determinedly

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35.

Jose cupped his hands together to cover his mouth ________ other people would see him cry.

A．so that	B．now that
C．for fear that	D．on condition that

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36.

Sometimes, _______ we show our gratitude for a person is reflected in the kind of food we serve him or her.

A．when	B．whether
C．why	D．how

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37.

I adore my English teacher because he can always create an atmosphere ______ all the students feel respected and cared for.
A. that B. when
C. where D. which

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38.

— No one can answer the question _______ we can complete the task in time, do you know?
— Yes, and this is because we don’t know the way _______ the scientist used last time．

A．whether; which	B．if; which
C．whether; in which	D．if; in which

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39.

Students in English-speaking countries usually address their man teacher “sir”, but _______ their woman teacher “madam”.

A．seldom they address	B．do they seldom address
C．seldom do they address	D．they seldom do address

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40.

— I hear Kris had an accident as he was riding his bike to school yesterday.
— ________? He is always so careful when he is riding.

A．What for	B．How come
C．Why that	D．So what

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41.

— Do you mind if I close the window?
— _______．We should let in more fresh air．

A．Yes, go ahead．	B．Of course not
C．I would like to close it	D．I’d appreciate it if you didn’t

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江苏省南京市金陵中学牛津英语高三牛津英语模块九单元一练习三

1.选择题(共20题)

2.单项选择(共21题)

【1】题量占比

【2】：难度分析