问题 选择题

下列现象中属于光的反射的是(  )

A.在颐和园内昆明湖的水中可看到十七孔桥的倒影

B.人在阳光下,地面上出现影子

C.注满水的游泳池,池底看起来变浅了

D.筷子斜插入水中,水下的部分看起来上翘了

答案

A、在颐和园内昆明湖的水中可看到十七孔桥的倒影,是平面镜成像,属于光的反射,故本选项正确;

B、人在阳光下,地面上出现影子,是由于光沿直线传播,身体挡住了阳光而形成的.故本选项不符合题意;

C、注满水的游泳池,池底看起来变浅了,是由于光从水中斜射入空气中时,发生折射,所以C不符合题意.

D、斜插入水中的筷子在水下的部分看起来向上弯折了,是由于光从水中斜射入空气中时,发生折射,折射角大于入射角而造成的.所以D不符合题意.

故选A.

阅读理解

阅读七选五(共5 小题; 每题 2分 , 满分10 分)

Decision  Making

Making decision in life can be a difficult task.______小题1:_______In fact, the decisions you make today will not only influence your future ,but also other people and the world in which you live .

Decision making involves thinking ,talking , and searching for information related to a problem ._______小题2:_________You do this by talking with others who know about the subject, going to the library , and thinking about two or more solutions.

_______小题3:_________An example is your ten-year-old car breaks down and needs much money to repair. You need transportation to get to work, do shopping ,and deal with other tasks.You must decide the best way to spend the family’s money.

In deciding -----or making a decision ------there is a six- step process:

*Define (明确) the problem .Understand the problem clearly .

*Gather and list all the information you can get on the problem.

*______小题4:______It is important to have many possible solutions to the situation. It will take time to rearch the variety of solutions .

*______小题5:_______Look at the good and bad sides to each solution . What are the results of each? Answer the questions : Will this solution be good for me ……the family …coworkers? Stay with your values and those of your family .

* Choose the best solution to solve your problem .

* Evaluate the decision you made. Decide if you need to revise your action plan .

A.Set clearly defined goals or action plans.

B.Examine two or more solutions to the situation .

C.Analyze(分析)the possible results of each solution .

D.You probably won’t be happy with every decision you make .E.You gather data that can  help you with the decisions that you need to make .

F.Throughout your life you will make some decisions that will affect your future .

G.Decision making usually occurs when events , habits ,and patterns of living change.

填空题