题目

如图所示，伽利略的斜面实验反映了一个重要事实：如果空气阻力和摩擦力小到可以忽略不计，小球一旦沿斜面A滚落，必将准确地终止于斜面B上同它开始点相同高度处，绝不会更高一点或更低一点，这说明，小球在运动过程中有一个“东西”是不变的，这个“东西”是（ ）A. 能量B. 速度C. 加速度D. 弹力阅读表达（共5小题；每不题2分，共10分）    阅读下面短文，请根据文后的要求进行答题。（请注意问题后的字数要求）    Do you like chocolate? Most people do．Some like it in bars．Others just like big squares of．it． Say you just got a box of chocolate．Which piece do you pick first? A study carried out by a professor in the University of Virginia showed that people's choices of chocolates show their personality．If you choose a round piece, you are a person who likes to party．If you select an oval shape, you are a person who strives．You like to make things and push yourself to be successful．Picking a square shape shows that this is an ．honest and truthful person you can depend on． What kind of chocolate do you pick? Maybe you like milk chocolate．This shows you have warm feelings about the past, while dark chocolate means something else—the person who chooses it looks forward to the future．What about white chocolate? Would you like to choose it? If so, you may find it hard to make up your mind．Those who like chocolate with nuts are people who like to help others． Do you believe these ideas? Can chocolate tell all these things? It doesn't matter．There is one sure thing about eaters of chocolates - they eat it because they like it． 1．What is the best tide of the text? （Please answer within 8 words．） 2． Which sentence in the text can be replaced by the following one?      In that case, it will be difficult for you to make a decision. 3．What does the underlined word “strives” mean here in English? 4．What’s the writer’s attitude towards the information about chocolate in the text? (Please answer within 15 words) 5．As described in the passage, the          and         of chocolate can show your characteristics and qualities.