问题 读图填空题

据人体呼吸全过程图解(注:①②③④表示四个过程,A、B表示人体某部位),请回答:

(1)过程[①]是通过_______实现的,过程[②]是_________,该过程是通过_________实现的,此时血液的变化情况是____________。

(2)血液中运输氧的血细胞是________,该细胞的形态结构特点是____________。

(3)人体内消耗氧和产生二氧化碳的部位是[     ]_________,试写出该部位消耗氧产生二氧化碳的表达式:_______________。

答案

(1)呼吸运动;肺泡内的气体交换;气体扩散作用  由静脉血变为动脉血

(2)红细胞;没有细胞核,呈双面凹的圆饼状

(3)[B]组织细胞;有机物+氧→二氧化碳+水+能量

计算题
阅读理解

One would have to be a fool to overlook (忽视)the importance of using positive(积极的) thinking for you rather than allowing negative thinking to work against you. In recent years, research in psychopharmacology (精神药理学) has proved what many people have known over the centuries: a positive attitude is good for you, good for your health, good for your wealth, good for everything. Researchers found that a positive attitude produces a specific chemical reaction which makes people feel better, while negative thinking results in a decline of hormone (荷尔蒙) and shuts down the immune (免疫的) system. This leads to illness and depression. Positive thoughts will make you feel better. Even if you must begin by literally forcing yourself to be positive (faking it, so to speak), it will become contagious (会传播的) and the positive thoughts will generate nice little chemicals and good feelings which will reinforce the positive thoughts.

For example, if you force yourself to smile or laugh, even when you don't feel like smiling or laughing, if you keep at it for a few minutes, you will soon feel like it. Feelings can generate (导致)thoughts, but thoughts can also generate feelings. Control your thoughts and you can control your feelings. Positive thinking is important in all aspects of our lives. There is probably no single factor more important in determining your success in achieving your career objectives than your own attitude.

It's often been said that in the land of the blind, the one-eyed man is king. And in the office of militant (好战) negativism, the positive workers shine like gold. You cannot control external events, but you can learn to control your reaction to those events and thereby have a positive attitude and be happy. This vital key to success is totally within your control. Use it.

小题1:We can infer from the passage that         .

A.positive thinking can cure you of your diseases

B.positive thinking can easily be generated by anyone

C.a decline of hormone may cause you to be depressed

D.a specific chemical reaction is the cause of negative thinking小题2:According to the passage, which of the following is true?

A.Feeling and thoughts can generate each other.

B.It's easier to control thoughts than to control feelings.

C.Your success depends wholly on your attitude.

D.Keeping smiling will surely make you successful.小题3:Just like a one-eyed man in the land of the blind, you should             .

A.control your feeling to what is happening to you

B.be king in your office

C.pay no attention to what is going on around you

D.take positive attitude in the office of militant negativism小题4:The best title to the passage is             .

A.The Bad Effect of Negative Thinking

B.Why Should People Think

C.Thinking: The Vital Way

D.Positive Thinking Benefits People