问题 阅读理解

How to Become a Healthy Person?

小题1:

The following are some healthy lifestyle tips that will help you on how to be a healthy person. We all know that our minds control our actions, and so does our thoughts, and this is why the happy and optimistic people live longer and healthier! In this modern world, we often pay more attention to the negative(负面的,消极的) than the positive! Believe it or not, the more negative thoughts you have in your mind, the more outcomes of your efforts will be. No matter what the situation is, you need to change your thoughts and practice to pay attention to the positive.

小题2:

You need to give enough rest to your body and mind which will only come from a good sound eight hours sleep. This will not only make your body and mind fresh, but also make you more active and relaxed. Some tips for better sleep would be to stay away from such things as so-called “energy drinks”. If you want real health, sleep is all you need to have.

小题3:

Have you seen the group of old people in the park who form a round circle and start laughing as if they would win a million dollars for it? No matter how funny it looks, the benefits of laughter are a way beyond our imagination. If you feel like smiling, just smile! No matter what, wear that beautiful smile on your lips and make sure it is always there.

小题4:

Eating healthy foods and balancing it with the right amount of exercise is extremely important. Try to eat as much fruit and vegetables as possible. Such food makes you feel light and active! Wake up early in the morning and start with proper exercise. A 30-minute walk or run will not only make you physically healthy and active, but also make you more flexible and your mind smart.

小题5:

The way you look upon yourself is the way you look upon your life. It is very important for a person to have self-esteem(自尊), for it is your attitude that decides your life. No matter what you have done so far, it’s the way you look upon yourself that really matters. Think what person you want to be and keep to it. Work hard towards becoming the person you want to be.

答案

小题1:E

小题2:D

小题3:C

小题4:B

小题5:F

题目分析:如何才能成为一个健康的人?建议如下:1.要有积极乐观的人生态度;2.有充足的睡眠;3.大笑4.健康饮食、适当运动;5.自尊。做真正的自我。

小题1:考查对段落的概括理解能力。就如何才能成为一个健康的人给出一些建议。第一段的大意为:只有快乐、乐观的人才能更长寿、更健康。生活中有消极的一面,但是无论如何,也要学会改变思想,学会以积极的态度来对待生活。所以选E(改变为积极的人生态度)。

小题2:考查对段落的概括理解能力。第二段的核心词为:充足的睡眠。只有睡眠好,才能精力充沛。所以选D(有足够的睡眠)。

小题3:考查对段落的概括理解能力。第三段的核心词为:大笑、微笑。所以选C(笑是最好的药。)

小题4:考查对段落的概括理解能力。第四段的核心词为:健康饮食加适当运动。所以选B(健康饮食加锻炼)。

小题5:考查对段落的概括理解能力。第五段的核心词为:自尊。所以选F(尊重自己,做你想做的人,)。

选择题
实验题

由于实验室中矩形玻璃砖数量不够,部分同学须改用直角三棱镜做“测定玻璃的折射率”实验,实验步骤如下:

a.如右图先在一张白纸上作出相互垂直的直线ab和a/b/ ,以ab和a/b/作为三棱镜的两个界面,并在直线ab上标出O点.

b.描出P3、P4的位置.

c.将三棱镜放在白纸上,使短边跟ab对齐,长边跟a/b/对齐,画出斜边bb/

d.在长边a/b/的外侧透过三棱镜观察大头针P1、P2的像,调整视线方向,直到P1的像完全被P2的像挡住.

e.在观察的这一侧插两枚大头针P3、P4,使P3挡住P1、P2的像,P4挡住P1、P2的像及P3

f.过O点作一垂直于ab的线段OA,在OA上垂直纸面插上两枚大头针P1、P2

g.移去三棱镜和大头针,连接P3、P4交a/b/于点O/,作过O/与a/b/垂直的直线MN.

h.作出光路图,计算折射率n.

根据上面叙述回答下列问题:

①正确实验步骤顺序为              

②请在图中画出准确完整的光路图。

③请根据图中所给数据,求出该玻璃的折射率n=             

(2)某同学在做完测定玻璃折射率的实验后,突发奇想,他说受到实验中光路侧移的启示,设计了一个厚度检测仪,可以用来检测玻璃厚度是否均匀,原理大致是:如图所示,取一块厚度均匀的矩形玻璃砖摆放好,固定的一束激光AO以不变的入射角θ1照射到MN表面,折射后从PQ面射出,最后出射光线照射到光电管C上,光电管C可将光信号转变为电信号,如右图所示,依据激光束在C上移动的距离,可确定玻璃砖厚度的变化,若某次检测中发现光斑在C上左移了Δs,则此玻璃砖的厚度与原来相比变           (填“厚”或“薄”)。