问题 判断题

生活在北欧的人比生活在赤道附近的人的鼻腔长些。(    )

答案

题目分析:呼吸系统由呼吸道和肺组成,呼吸道由鼻腔、咽、喉、气管、支气管组成,是气体进入肺的通道,肺是呼吸系统的主要器官,是进行气体交换的场所,鼻是呼吸系统的通道之一,鼻腔内有鼻毛,可以阻挡空气中灰尘的进入,对空气有清洁作用,鼻黏膜分泌的黏液,可以湿润空气和粘住灰尘,对空气有清洁和湿润作用,鼻粘膜内分布着毛细血管,可以温暖空气,北欧人的鼻子要比非洲大一些,这有利于对吸入寒冷空气温暖、湿润、清洁作用,是与其生活环境相适应的。

点评:此题较新颖,难度一般,解答此题的关键是熟练掌握呼吸道的组成和功能。

阅读理解

阅读短文,回答问题。

     Sam likes eating fish very much. He often buys fish in the shop and takes them home. One day his

wife sees the fish and thinks, "Good! Now, I can ask my friends to have lunch and we can eat the fish.

They like fish very much. "

     When Sam comes home from work in the evening, the fish is not there and his wife says, "Oh, your

cat eats it. "And then she gives him some bread for his supper. Sam is angry (生气). He takes the cat and

his wife to a shop near his house and weighs(称)the cat. Then he turns to his wife and says, "My fish

weighs one kilo. The cat weighs one kilo, too. My cat is here, you see, then, where is my fish? "

1. What does Sam like eating very much?

                                                                         

2. Who eat the fish that day?

                                                                         

3. How much does the fish weigh?

                                                                         

4. What does Sam's wife give him for supper?

                                                                         

5. Can you guess if (是否)Sam knows where the fish is?

                                                                          

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