请同学们阅读关于凸面镜的下列文章：

表面向外弯曲的镜面叫凸面镜，图甲所示的凸面镜是如何反射平行光线的？人们看到的反射光线好像是从镜子后面的焦点上发出的．由于反射光线并未相遇，因此凸面镜形成的总是虚像．

你是否看到过汽车后视镜上的警告：“后视镜中看到的物体比他们看上去的距离要近!”凸面镜在轿车中用作供司机使用的后视镜，因为凸面镜向外发散光线，所以借助它能使你看到更大的反射区域，由于你在镜中看到得更多，像似乎比物体本身小且近，如图乙所示．

（1）请回答下列问题：

①凸面镜反射光线时是利用球面的______表面，______将______光线进行发散，______（填“符合”或“不符合”）光的反射规律．

②凸面镜所成的像比物体______（填“远”或“近”），且是______立______（填“放大”“缩小”或“等大”）的______像．

（2）通过阅读，你还获得了哪些知识？请说出一点．

（3）试举出凸面镜在生产、生活中实际应用的一个事例．

We once had a poster competition in our fifth grade art class.

“You could win prizes,” our teacher told us as she wrote the poster information on the blackboard. She passed out sheets of construction paper while continuing, “The first prize is ten dollars. You just have to make sure that the words on the blackboard appear somewhere on your poster.”

We studied the board critically. Some of us looked with one eye and held up certain colors against the blackboard, rocking the sheets to the right or left while we conjured up our designs. Others twisted their hair around their fingers or chewed their erasers while deep in thought. We had plans for that ten-dollar grand prize, each and every one of us. I’m going to spend mine on candies, one hopeful would announce, while another practiced looking serious, wise and rich.

Everyone in the class made a poster. Some of us used parts of those fancy paper napkins, while others used nothing but colored construction paper. Some of us used big designs, and some of us preferred to gather our art tidily down in one corner of our poster and let the space draw the viewer’s attention to it. Some of us would wander past the good students’ desks and then return to our own projects with a growing sense of hopelessness. It was yet another grown-up trick of the sort they seemed especially fond of, making all of us believe we had a fair chance, and then always—always—rewarding the same old winners.

I believe I drew a sailboat, but I can’t say that with any certainty. I made it. I admired it. I determined it to be the very best of all of the posters I had seen，and then I turned it in.

Minutes passed.

No one came along to give me the grand prize, and then someone distracted me, and I probably never would have thought about that poster again.

I was still sitting at my desk, thinking, What poster? when the teacher gave me an envelope with a ten-dollar bill in it and everyone in the class applauded for me.

小题1:What was the teacher’s requirement for the poster?

A．It must appear in time.

B．It must be done in class.

C．It must be done on a construction sheet.

D．It must include the words on the blackboard.小题2:The underlined phrase in Paragraph 3 most probably means ________.

A．formed an idea for

B．made an outline for

C．made some space for

D．chose some colors for小题3:After the teacher’s words, all the students in the class________.

A．looked very serious

B．thought they would be rich

C．began to think about their designs

D．began to play games小题4:After seeing the good students’ designs, some students________.

A．loved their own designs more

B．thought they had a fair chance

C．put their own designs in a corner

D．thought they would not win the prize小题5:We can infer from the passage that the author________.

A．enjoyed grown up tricks very much

B．loved poster competitions very much

C．felt surprised to win the competition

D．became wise and rich after the competition