问题 阅读理解与欣赏

《落日的幻觉》(节选)

       ①其实,日落的景象和日出同样壮观、绮丽,而且神秘、迷人。如果有机会观日落,它会使你神往:太阳静静地躺在西方地平线上,变得如此之大,颜色是那样深黄、殷红;它缓缓坠落,接近地平线时竟缩身变扁。若天空有云,你会看见灿烂的晚霞;全天无云,不要忘记回头,你会发现背后的天空中现出神秘的蓝灰色暗弧,暗弧外面还镶有明显的亮弧。而在暗弧和亮弧上升的同时,西方天空还会出现迷人的紫光,随着太阳的坠落,紫光下移,接近地平线时才消失。可惜这种美丽的紫光并不多见。         

       ②日落确实很美,色彩绚丽,变化多端。可是观赏者不会想到吧,这些奇异景象竟然大都是幻觉,夕阳本身没有任何变化。  

       ③天文学家早就发现,地球大气会使光线散射。1871年,英国科学家瑞利证明,短波光的散射比长波光要强得多,所以,阳光中的短波光——紫色光被大气层中微小尘埃和空气分子散射要比长波光——红色光强10倍以上(这首先可以解释为什么天空总是蔚蓝色的)。由于日落日出的时候,阳光所穿透的大气层增厚,而黄、红色光穿透能力最大,所以此时太阳看起来深黄、殷红。一般地讲,黄昏时空气中的烟尘要比清晨多,因此,落日颜色又不同于旭日。

1、第②段在结构上所起的什么作用?

                                                                                                                                           

2、第③段画线的句子运用了什么说明方法?这样写的好处是什么?

                                                                                                                                                           

3、为什么落日的颜色看起来深黄、殷红?

                                                                                                                                                          

4、阅读下面句子,理解画线字词,了解说明文的语言特色。

     ⑴、天空中现出神秘的蓝灰色暗弧,暗弧外面还有明显的亮弧。

                                                                                                                                                          

     ⑵、一般地讲,黄昏时空气中的烟尘要比清晨多,因此,落日颜色又不同于旭日。

                                                                                                                                                            

答案

1、承上启下或过渡作用

2、运用了作比较的说明方法,好处是鲜明有效地说明了短波光散射比长波光强。

3、因为日落时阳光所穿透的大气层增厚,而黄、红色光穿透能力最大,所以此时太阳看起来深黄、殷红。

4、⑴“镶”字生动形象的表现出了亮弧呈现于暗弧外面的形态,极富美感和生命力。

     ⑵“一般地讲”,表明不排除有特殊情况,这样体现了说明文语言的准确、严谨。

阅读理解

Have you ever had an embarrassing (尴尬的) experience? Last week we asked readers to tell us about embarrassing experiences. We received thousands of letters! Here is a selection.

Tony: My most embarrassing experience happened when I had just left university. I had just started teaching in a Liverpool secondary school. One morning my alarm clock didn’t ring. I woke up at half past eight and school began at nine. I quickly washed, dressed, jumped into my car and rushed to school. When I arrived, the students had already gone into class. I didn’t go to the office, but went straight into class. After two or three minutes the students began laughing, and I couldn’t understand why! Suddenly I looked down and understood. I had put on one black shoe and one brown shoe!

Henry: The most embarrassing experience I’ve ever had happened two years ago. After seeing a film, my wife and I had lunch in our favorite restaurant in town. Then we decided to take a walk along the street. The street was very busy and we started holding hands. Suddenly my wife saw a dress in a shop window and stopped. I started looking at some watches in the next window. After a minute or two I reached for my wife’s hand. There was a loud scream, and a woman slapped (拍击) my face. I hadn’t taken my wife’s hand!I'd taken the hand of a stranger!

小题1:The students began laughing when they saw Tony _________.

A.wearing a wrong shoe

B.carrying an alarm clock

C.looking down suddenly

D.rushing into the classroom小题2:Henry and his wife held hands _________.

A.at the cinema

B.in the shop

C.at the restaurant

D.along the street小题3:Henry was embarrassed because he __________.

A.heard his wife screaming

B.knocked over some watches

C.took the hand of a stranger

D.slapped the woman in the face

判断题