问题 读图填空题

鸟类在高空飞行时需要大量的氧,它有特殊的呼吸方式,请你观察家鸽气囊的示意图,回答下列问题。 

(1)从图中可以看出,气囊与_______直接相通。

(2)家鸽吸气时,气体的流动方向是:气管→ __________→__________→__________

(3)家鸽呼吸的过程:

①两翼举起,气囊           ,外界空气进入                  。 

②两翼下垂,气囊           ,气囊内空气经        排出体外。 

③家鸽这种呼吸的特点为:                                                        

答案

(1)肺

(2)支气管      肺     气囊

(3)①扩张  肺和气囊    ②收缩 肺     ③每呼吸一次,在肺内发生两次气体交换

阅读理解

All students need to have good habits(好习惯): When you have good study habits, you learn things quickly. You also remember them easily.

Do you like to study in the living room? This is not a good place because it is usually too noisy. The telephone bell rings there; the TV is there, and sometimes it is a good place for your pet dog or cats to play and rest. You need to study in a quiet place, like your bedroom. A quiet place will help you only think about one thing, and you will learn better.

Before you begin to study, do not forget to clean your desk. A good desk light is important, too. You’ll feel tired easily if there is not enough light(光线). So you should have a clean and bright lamp. To tell you the truth, the most important is that you should put your heart into your study.

(   )6.When you have good study habits, you will _______.

A. learn things quickly        B. remember things easily

C. make some mistakes        D. both A and B

(   )7.The living-room is not a good place for study because it is too_____ .

A. quiet          B. noisy       C. good        D. clean

(   )8.You’ll feel tired easily if the light is .

A. good          B. enough       C. bad        D. wonderful

(   )9.You should remember to _______ before you study.

A. clean the desk          B. tidy the room

C. turn off the light         D. go to the bedroom

(   )10.The best title(标题)for this passage(文章)is __________.

A. Study in the bedroom       B. Good study habits

C. How to study              D. Desk light is important

单项选择题