表格式窗体中可以显示______的内容。

照样子填空。

钅：（钢）（铜）（钉）与金属有关。

衤：（　　）（　　）（　　）与____有关。

疒：（　　）（　　）（　　）与____有关。

亻：（　　）（　　）（　　）与____有关。

在日常生活中，需要我们          [ ]

①懂得父母赋予生命之恩、抚育之恩

②从生活细节中体会父母对我们的关心和爱护

③关心父母、理解父母  

④以实际行动报答父母

A．①②           

B．①②③            

C．①②③④        

D．②③④

If you have ever been discouraged because of failure，please read on. For often, achieving

what you set out to do is not the important thing.

Two brothers decided to dig a deep hole behind their house. As they were working, a couple of older boys stopped by to watch.

"What are you doing?" asked one of the visitors.

"We plan to dig a hole all the way through the earth!" one of the brothers volunteered excitedly.

The older boys began to laugh, telling the younger ones that digging a hole all the way through the earth was impossible. After a long silence, one of the diggers picked up a jar full of spiders,  worms and insects. He removed the lid and showed the wonderful contents to the visitors. Then he said quietly and confidently，Even if we don’t dig all he way through the earth, look at what we found along he way!”

Their goal was far too great, but it did cause them to dig. And that is what a goal is for to cause us to move in he direction we have chosen; In other words, to set us to digging! But not every goal will be fully achieved. Not every job will end successfully. Not every love will last. Not every attempt will be completed. Not every dream will be realized.

But when you fall short of your aim, perhaps you can say，“Yes, but look at what I found along he way! Look at the wonderful things which have come into my life because I tired to do something!"

It is in the digging that life is lived. And I believe it is joy in he journey, in he end，that truly matters.

49. Readers may probably get____ from the passage.

A. discouragement   B. encouragement   C. comfort    D. delight

50. The underlined phrase “fall short of" possibly means ____.

A. fail to achieve     B. manage to achieve  C. fall because of   D. get rid of

51. What is he most important brothers in their digging?

A. To find wonderful things.  B. To have people looking on.

C. To achieve their goal      D. To keep on digging.

52. The brothers' attitude to life is____.

A. worried about future                    B. doubtful whether to achieve anything

C. hopeful about the future                 D. careful in doing everything

请用压强的知识解释，“人们切割物品时，刀刃越锋利越便于切割”

在雷达荧光屏局部区域上出现的疏松的棉絮状一片的干扰波是（）。

A．雨雪干扰

B．噪声干扰

C．海浪干扰

D．同频干扰