2012-2013学年安徽省屯溪一中高二下学期期中考试英语试卷（带解析）

适用年级：高二
试卷号：87071

试卷类型：期中
试卷考试时间：2017/7/19

1.选择题(共7题)

已知椭圆C_l的方程为 $\frac{x^{2}}{4}$ + $\frac{y^{2}}{3^{2}}$ =1，椭圆C₂的短轴为C₁的长轴且离心率为 $\frac{\sqrt{3}}{2}$ ．

（I）求椭圆C₂的方程；

（Ⅱ）如图，M、N分别为直线l与椭圆C_l、C₂的一个交点，P为椭圆C₂与y轴的交点，△PON面积为△POM面积的2倍，若直线l的方程为y=kx（k＞0），求k的值．

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2.如图，设A，B两点的坐标分别为（﹣ {#mathml#}

\sqrt{2}

{#/mathml#} ，0），（ {#mathml#}

\sqrt{2}

{#/mathml#} ，0）．直线AP，BP相交于点P，且它们的斜率之积为﹣ {#mathml#}

\frac{1}{2}

{#/mathml#} ．

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3.已知椭圆C： {#mathml#}

\frac{x^{2}}{a}

{#/mathml#} +y²=1（a＞0）的左右焦点分别为F₁，F₂，过椭圆C的右顶点和上顶点的直线l与圆x²+y²= {#mathml#}

\frac{2}{3}

{#/mathml#} 相切，椭圆C过点P（1， {#mathml#}

\frac{\sqrt{2}}{2}

{#/mathml#} ），直线PF₁交y轴于Q，且 {#mathml#}

\vec{P F_{2}}

{#/mathml#} =2 {#mathml#}

\vec{Q O}

{#/mathml#} ，O为坐标原点．

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4.已知椭圆C： {#mathml#}

\frac{x^{2}}{a}

{#/mathml#} +y²=1（a＞0）的左右焦点分别为F₁，F₂，过椭圆C的右顶点和上顶点的直线l与圆x²+y²= {#mathml#}

\frac{2}{3}

{#/mathml#} 相切，椭圆C过点P（1， {#mathml#}

\frac{\sqrt{2}}{2}

{#/mathml#} ），直线PF₁交y轴于Q，且 {#mathml#}

\vec{P F_{2}}

{#/mathml#} =2 {#mathml#}

\vec{Q O}

{#/mathml#} ，O为坐标原点．

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5.已知椭圆 {#mathml#}

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

{#/mathml#} 的两焦点为F₁，F₂，离心率为 {#mathml#}

\frac{\sqrt{2}}{2}

{#/mathml#} ，直线l与椭圆相交于A（x₁，y₁），B（x₂，y₂）两点，且满足 {#mathml#}

| A F_{1} | + | A F_{2} | = 4 \sqrt{2}

{#/mathml#} ，O为坐标原点．

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研究远古人类生产生活第一手资料是（　　）

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研究远古人类生产生活第一手资料是（　　）

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2.单项选择(共8题)

Due to the widespread________ of this medical technology, more diseases can be discovered and treated at an early stage.

A．presentation	B．application
C．qualification	D．appreciation

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As the New Year opens, let us ask what ____ of us can do to create safe communities.

A．each

B．every

C．neither

D．none

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10.

—Shall I go over to chat with you this evening?
—Nice of you! It is great comfort to keep me company, when I’m alone at home．

A．a：the

B．a；不填

C．不填；a

D．不填；不填

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11.

David got well-prepared for the university interview, for he couldn’t risk the good opportunity ________.

A．to lose

B．losing

C．to be lost

D．being lost

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12.

—Hi, Susan, you look tired.
—I for months for the coming celebration of our school’s 90th anniversary.

A．was preparing

B．have been preparing

C．had prepared

D．prepare

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13.

We attend lectures in the school lecture hall at weekend ____ seats more than 800 students.

A．which

B．whose

C．where

D．when

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14.

— If our team gets the first place, we will get a bonus. With that bonus, I will go for a trip with my girl friend.
— _______.

A．Great minds think alike

B．Never judge a book by its cover

C．An old dog cannot learn new skills

D．Don’t count your chickens until they are hatched

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15.

— Did you have a wonderful time at the ball last night?
— __________! I’ve never had a more wonderful time all my life.

A．You bet

B．No problem

C．Don’t mention it

D．Got it

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试卷分析

【1】题量占比

选择题:(7道)

单项选择:(8道)
【2】：难度分析

1星难题：0

2星难题：0

3星难题：0

4星难题：0

5星难题：0

6星难题：7

7星难题：0

8星难题：1

9星难题：0

2012-2013学年安徽省屯溪一中高二下学期期中考试英语试卷（带解析）

1.选择题(共7题)

2.单项选择(共8题)

【1】题量占比

【2】：难度分析