在定向运动中，要随时明确自己的站立点在（）的位置及将要到达的目标点的（）。养成“人在

患者女，21岁，因左上后牙进食嵌塞食物疼痛就诊，检查发现左下第一恒磨面龋坏较深，探敏感，叩（－），冷热刺激入洞后疼痛，去除后疼痛立即消失

该牙最可能的诊断为（）

A.浅龋

B.中龋

C.深龋

D.可复性牙髓炎

E.慢性牙髓炎

图所示为中国古代发明的一种仪器，其名称是（）。

A.日晷

B.司南

C.地动仪

D.浑天仪

具有养心安神、润肠通便功效的药物是（）

A.苦杏仁

B.柏子仁

C.酸枣仁

D.川贝母

E.桃仁

阅读理解。

     The motor vehicle has killed and disabled more people in its brief history than any bomb or weapon

ever invented.Much of the blood on the street flows mainly from uncivil behavior of drivers who refuse to

respect the legal and moral rights of others. So the killing on the road may be regarded as a social

problem.

     In fact,the enemies of society on wheels are rather harmless people-just ordinary people acting

carelessly,you might say.  But it is a general truth both of law and common morality that carelessness is

no excuse when one's actions could bring death or damage to others.  A minority of killers go even

beyond carelessness to total negligence (疏忽).

      Researchers have estimated that as many as 80 percent of all automobile accidents can be attributed

to the psychological condition of the driver.  Emotional upsets can distort (扭曲 )  drivers' reactions, slow their judgment, and blind

them to dangers that might otherwise be clear.  The experts warn that it is necessary for every driver to

make a conscious effort to keep one's emotion under control.

        Yet the irresponsibility that accounts for much of the problem is not confined (限制)  to drivers. 

 Street walkers regularly break traffic rules. They are at fault in most vehicle walker accidents;and many

cyclist even believe that they

are not subject to the basic rules of road.

      Significant legal advances have been made towards safer driving in the past few years. Safety

standards for vehicle have been raised both at the point of manufacture and through periodic

road-worthiness inspections. In addition,speed limits have been lowered. Due to these measures,the

accident rate has decreased. But the accident experts still worry because there has been little or no

improvement in the way drivers behave. The only real and lasting solution,say the experts,is to persuade

people that driving is a skilled task requiring constant care and concentration. Those who fail to do all

these things present a threat to those with whom they share the road.

1.  What is the author's main purpose in writing the passage?

A. To show that motor vehicle is a very dangerous invention.

B. To improve understanding between careless drivers and walkers.

C. To discuss traffic problems and propose possible solutions.

D. To remind drivers of the importance of safe driving.

2.  Why does the author mention the psychological condition of the driver in Paragraph Three?    

A. To give an example of the various reasons for road accidents.

B. To show how important it is for drivers to be emotionally healthy.

C. To show some of the inaccurate estimations by researchers.

D. To illustrate the hidden tensions in the course of driving.

3. Which is not mentioned as being responsible for the road accidents?

A. Careless bicycle-riders.              

B. Mindless people walking in the street.

C. Irresponsible drivers.          

D. Irresponsible manufactures of automobiles.

4. Which of the following best shows the author's attitude towards the future without traffic

     accident problems?

A.  Doubtful yet still longing for.            

B.  Happy and rather confident.

C. Surprised and very pleased.                  

D. Disappointed and deeply worried.

我国古代商品经济最初产生于（）。

A.原始社会后期

B.商朝

C.春秋战国时期

D.秦汉时期