05网全部答案试卷

第一部分 交际用语

Afternoon, sir. Where to?---A. Please get me to the airport?

Ami,I want this report typed today.---it’ll be ready in the afternoon, sir.

Are you feeling better today, Mrs. Silver?----Yes, thanks, doctor.but I still feel dizzy. Are you sure about that?---D. Oh, yes. I’m absolutely positive. Can I help you to ge it down?---Thanks , it’s so nice of you.

Can I take your order now?----Just a moment. Two friends are coming.

Can you turn down the radio, please?---- A. I’m sorry, I didn’t realize it was that loud Can you

第一部分 交际用语

Afternoon, sir. Where to?---A. Please get me to the airport?

Ami,I want this report typed today.---it’ll be ready in the afternoon, sir.

Are you feeling better today, Mrs. Silver?----Yes, thanks, doctor.but I still feel dizzy. Are you sure about that?---D. Oh, yes. I’m absolutely positive. Can I help you to ge it down?---Thanks , it’s so nice of you.

Can I take your order now?----Just a moment. Two friends are coming.

Can you turn down the radio, please?---- A. I’m sorry, I didn’t realize it was that loud Can you

第一部分 交际用语

Afternoon, sir. Where to?---A. Please get me to the airport?

Ami,I want this report typed today.---it’ll be ready in the afternoon, sir.

Are you feeling better today, Mrs. Silver?----Yes, thanks, doctor.but I still feel dizzy. Are you sure about that?---D. Oh, yes. I’m absolutely positive. Can I help you to ge it down?---Thanks , it’s so nice of you.

Can I take your order now?----Just a moment. Two friends are coming.

Can you turn down the radio, please?---- A. I’m sorry, I didn’t realize it was that loud Can you

第一部分 交际用语

Afternoon, sir. Where to?---A. Please get me to the airport?

Ami,I want this report typed today.---it’ll be ready in the afternoon, sir.

Are you feeling better today, Mrs. Silver?----Yes, thanks, doctor.but I still feel dizzy. Are you sure about that?---D. Oh, yes. I’m absolutely positive. Can I help you to ge it down?---Thanks , it’s so nice of you.

Can I take your order now?----Just a moment. Two friends are coming.

Can you turn down the radio, please?---- A. I’m sorry, I didn’t realize it was that loud Can you

第一部分 交际用语

Afternoon, sir. Where to?---A. Please get me to the airport?

Ami,I want this report typed today.---it’ll be ready in the afternoon, sir.

Are you feeling better today, Mrs. Silver?----Yes, thanks, doctor.but I still feel dizzy. Are you sure about that?---D. Oh, yes. I’m absolutely positive. Can I help you to ge it down?---Thanks , it’s so nice of you.

Can I take your order now?----Just a moment. Two friends are coming.

Can you turn down the radio, please?---- A. I’m sorry, I didn’t realize it was that loud Can you

第一部分 交际用语

Afternoon, sir. Where to?---A. Please get me to the airport?

Ami,I want this report typed today.---it’ll be ready in the afternoon, sir.

Are you feeling better today, Mrs. Silver?----Yes, thanks, doctor.but I still feel dizzy. Are you sure about that?---D. Oh, yes. I’m absolutely positive. Can I help you to ge it down?---Thanks , it’s so nice of you.

Can I take your order now?----Just a moment. Two friends are coming.

Can you turn down the radio, please?---- A. I’m sorry, I didn’t realize it was that loud Can you

第一部分 交际用语

Afternoon, sir. Where to?---A. Please get me to the airport?

Ami,I want this report typed today.---it’ll be ready in the afternoon, sir.

Are you feeling better today, Mrs. Silver?----Yes, thanks, doctor.but I still feel dizzy. Are you sure about that?---D. Oh, yes. I’m absolutely positive. Can I help you to ge it down?---Thanks , it’s so nice of you.

Can I take your order now?----Just a moment. Two friends are coming.

Can you turn down the radio, please?---- A. I’m sorry, I didn’t realize it was that loud Can you

第一部分 交际用语

Afternoon, sir. Where to?---A. Please get me to the airport?

Ami,I want this report typed today.---it’ll be ready in the afternoon, sir.

Are you feeling better today, Mrs. Silver?----Yes, thanks, doctor.but I still feel dizzy. Are you sure about that?---D. Oh, yes. I’m absolutely positive. Can I help you to ge it down?---Thanks , it’s so nice of you.

Can I take your order now?----Just a moment. Two friends are coming.

Can you turn down the radio, please?---- A. I’m sorry, I didn’t realize it was that loud Can you

2007-2008学年第一学期土力学期末试卷

（地质工程专业05级）

一、概念题（共15分）

1、孔隙率（3分）

答：土体中孔隙的体积与土的总体积之比。用公式表示为

n?VVe?100%或者n?

1?eV2、有效应力（3分）

答：土体中由土颗粒骨架所承担的那部分应力，等于总应力减去孔隙水应力 即????u 3、渗透系数（3分）

答：当水力坡降为1的时候所对应的流速 即v?ki中i=1时的v对应着渗透系数 4、安全系数（3分）

答：整个滑动面上的平均抗剪强度与平均剪应力之比来定义成土坡安全系数

'?f即：Fs?

?5、地基承载力（3分）

答：是地基所能够提供的承担外部荷载的能力，地基承载力主要由：静荷载实验或者原位试验，规范查表方法和理论公式来确定。

二、回答题（共36分）

1、土中主要粘土矿物有哪几种？它们在晶体结构和物理力学性质上各有什么特点？（6分） 答：主要有高岭石，蒙脱石，伊利石；

高岭石是长石风化的产物，由一层四面体和一层八面体相互叠结而成。蒙脱石则为两层四面体中间夹一层八面体组成一个晶胞，晶胞之间的联结力比较弱，水分子极容易进入，故有遇水膨胀的特性。伊利石如同蒙脱石一样也是三层结构。所不同的是晶胞之间有钾离子存在，故联结能力比较强

《大学物理AII》作业 No.5 光的衍射

一、选择题

1. 根据惠更斯－菲涅耳原理，若已知光在某时刻的波阵面为S，则S的前方某点P的光强度决定于波阵面S上所有面积元发出的子波各自传到P点的 [ D ] (A) 振动振幅之和。 (B) 光强之和。

(C) 振动振幅之和的平方。 (D) 振动的相干叠加。

解：根据惠更斯－菲涅尔原理，P点光强决定于所有子波传到P点的振动的相干叠加。

2. 在如图所示的单缝夫琅和费衍射装置中，将单缝宽度LC?a稍稍变宽，同时使单缝沿 y轴正方向作微小位移，则屏幕C上的中央衍射条纹将

[ C ] (A) 变窄，同时向上移。(B) 变窄，同时向下移。

(C) 变窄，不移动。 (D) 变宽，同时向上移。

(E) 变宽，不移动。

解：中央衍射条纹的半角宽度sin???aafy，a变宽时sin?Ox减小，条纹变窄。单缝沿＋y方向作微小位移，透镜的光轴并未移动，各条光线到屏的光程不变，中央衍射条纹不移动。

3. 在如图所示的单缝夫琅和费衍射实验中，若将单缝沿透镜光轴方向向透镜平移，则屏幕上的衍射条纹 [ C ] (A) 间距变大。

(B)