题目

某商场为了吸引顾客，设立了可以自由转动的转盘（如图，转盘被均匀分为20份），并规定：顾客每购买200元的商品，就能获得一次转动转盘的机会．如果转盘停止后，指针正好对准红色、黄色、绿色区域，那么顾客就可以分别获得200元、100元、50元的购物券，凭购物券可以在该商场继续购物．如果顾客不愿意转转盘，那么可以直接获得购物券30元．（1）求转动一次转盘获得购物券的概率； （2）转转盘和直接获得购物券，你认为哪种方式对顾客更合算Sarah came running in. She shouted happily, "Look what I ____36_____." She put a snake skin on the newspaper I was reading and it came so suddenly that it caused me to ____37_____. "Mom, look! Isn't it ____38_____?" said my seven-year-old daughter. I ____39_____ the snake skin and thought that it really wasn't pretty. Everything children see ____40_____is full of beauty in their eyes; they see only ____41_____ and excellence in the world until educated. "____42_____ did the snake do this?" Sarah asked. I tried to seize the ____43_____ to teach my children that there was almost always something beyond the obvious. I wanted to tell them that there was something else going on ____44_____ what they saw in front of them. "Snakes shed (蜕) their skin because they need to renew themselves," I ____45_____. "Why do they have to renew themselves?" Sarah asked. My son Robert laughed and said, "Because they don't ____46_____ what they are and they want to be someone else." I politely ignored him and said that by shedding skins, we could ____47_____ the hidden reality. "We often need to shed our skin, those coatings that we ____48_____ ourselves with," I said to my children, who listened very ____49_____, with their eyes wide open. "This snake ____50_____ needs this skin. It is probably too hard for him, or he probably doesn't think he looks as ____51_____in it as he once did. It's like buying a new ____52_____." I'm sure this explanation will not ____53_____ the naturalists. But Sarah was getting to understand that renewal is part of ____54_____. She should learn from it what we need to keep and what we need to ____55_____.小题1:A．madeB．seizedC．caughtD．found小题2:A．thinkB．jumpC．runD．struggle小题3:A．interestingB．smoothC．beautifulD．colorful小题4:A．stared atB．took offC．referred toD．brought back小题5:A．by accidentB．over and over again C．in the futureD．for the first time小题6:A．honestyB．differenceC．valueD．fear小题7:A．WhereB．WhyC．HowD．When小题8:A．informationB．possibilityC．opportunityD．question小题9:A．besidesB．forC．withoutD．around小题10:A．talkedB．explainedC．whisperedD．shouted小题11:A．keepB．wantC．needD．like小题12:A．seeB．guessC．ignoreD．remember小题13:A．keepB．storeC．coverD．improve小题14:A．properlyB．attentivelyC．sadlyD．angrily小题15:A．once moreB．at timesC．right nowD．no longer小题16:A．niceB．healthyC．strongD．big小题17:A．hatB．watchC．suitD．home小题18:A．moveB．satisfyC．correctD．defeat小题19:A．experienceB．achievementC．progressD．competition小题20:A．throw outB．hope forC．find outD．throw away